1 /* Jim - A small embeddable Tcl interpreter
2 * Copyright 2005 Salvatore Sanfilippo <antirez@invece.org>
3 * Copyright 2005 Clemens Hintze <c.hintze@gmx.net>
5 * $Id: jim.c,v 1.1.1.1 2008/07/31 20:44:21 mmahesh Exp $
7 * Licensed under the Apache License, Version 2.0 (the "License");
8 * you may not use this file except in compliance with the License.
9 * You may obtain a copy of the License at
11 * http://www.apache.org/licenses/LICENSE-2.0
13 * A copy of the license is also included in the source distribution
14 * of Jim, as a TXT file name called LICENSE.
16 * Unless required by applicable law or agreed to in writing, software
17 * distributed under the License is distributed on an "AS IS" BASIS,
18 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
19 * See the License for the specific language governing permissions and
20 * limitations under the License.
24 #define JIM_OPTIMIZATION /* comment to avoid optimizations and reduce size */
26 #include <pkgconf/athttpd.h>
29 #define JIM_DYNLIB /* Dynamic library support for UNIX and WIN32 */
30 #endif /* JIM_ANSIC */
42 /* Include the platform dependent libraries for
43 * dynamic loading of libraries. */
45 #if defined(_WIN32) || defined(WIN32)
50 #define WIN32_LEAN_AND_MEAN
53 #pragma warning(disable:4146)
58 #endif /* JIM_DYNLIB */
60 #include <cyg/athttpd/jim.h>
66 /* -----------------------------------------------------------------------------
68 * ---------------------------------------------------------------------------*/
70 /* A shared empty string for the objects string representation.
71 * Jim_InvalidateStringRep knows about it and don't try to free. */
72 static char *JimEmptyStringRep = (char*) "";
74 /* -----------------------------------------------------------------------------
75 * Required prototypes of not exported functions
76 * ---------------------------------------------------------------------------*/
77 static void JimChangeCallFrameId(Jim_Interp *interp, Jim_CallFrame *cf);
78 static void JimFreeCallFrame(Jim_Interp *interp, Jim_CallFrame *cf, int flags);
79 static void JimRegisterCoreApi(Jim_Interp *interp);
81 static Jim_HashTableType JimVariablesHashTableType;
83 /* -----------------------------------------------------------------------------
85 * ---------------------------------------------------------------------------*/
88 * Convert a string to a jim_wide INTEGER.
89 * This function originates from BSD.
91 * Ignores `locale' stuff. Assumes that the upper and lower case
92 * alphabets and digits are each contiguous.
95 #define JimIsAscii(c) (((c) & ~0x7f) == 0)
96 static jim_wide JimStrtoll(const char *nptr, char **endptr, register int base)
98 register const char *s;
99 register unsigned jim_wide acc;
100 register unsigned char c;
101 register unsigned jim_wide qbase, cutoff;
102 register int neg, any, cutlim;
105 * Skip white space and pick up leading +/- sign if any.
106 * If base is 0, allow 0x for hex and 0 for octal, else
107 * assume decimal; if base is already 16, allow 0x.
112 } while (isspace(c));
121 if ((base == 0 || base == 16) &&
122 c == '0' && (*s == 'x' || *s == 'X')) {
128 base = c == '0' ? 8 : 10;
131 * Compute the cutoff value between legal numbers and illegal
132 * numbers. That is the largest legal value, divided by the
133 * base. An input number that is greater than this value, if
134 * followed by a legal input character, is too big. One that
135 * is equal to this value may be valid or not; the limit
136 * between valid and invalid numbers is then based on the last
137 * digit. For instance, if the range for quads is
138 * [-9223372036854775808..9223372036854775807] and the input base
139 * is 10, cutoff will be set to 922337203685477580 and cutlim to
140 * either 7 (neg==0) or 8 (neg==1), meaning that if we have
141 * accumulated a value > 922337203685477580, or equal but the
142 * next digit is > 7 (or 8), the number is too big, and we will
143 * return a range error.
145 * Set any if any `digits' consumed; make it negative to indicate
148 qbase = (unsigned)base;
149 cutoff = neg ? (unsigned jim_wide)-(LLONG_MIN + LLONG_MAX) + LLONG_MAX
151 cutlim = (int)(cutoff % qbase);
153 for (acc = 0, any = 0;; c = *s++) {
159 c -= isupper(c) ? 'A' - 10 : 'a' - 10;
164 if (any < 0 || acc > cutoff || (acc == cutoff && c > cutlim))
173 acc = neg ? LLONG_MIN : LLONG_MAX;
178 *endptr = (char *)(any ? s - 1 : nptr);
183 /* Glob-style pattern matching. */
184 static int JimStringMatch(const char *pattern, int patternLen,
185 const char *string, int stringLen, int nocase)
190 while (pattern[1] == '*') {
195 return 1; /* match */
197 if (JimStringMatch(pattern+1, patternLen-1,
198 string, stringLen, nocase))
199 return 1; /* match */
203 return 0; /* no match */
207 return 0; /* no match */
217 not = pattern[0] == '^';
224 if (pattern[0] == '\\') {
227 if (pattern[0] == string[0])
229 } else if (pattern[0] == ']') {
231 } else if (patternLen == 0) {
235 } else if (pattern[1] == '-' && patternLen >= 3) {
236 int start = pattern[0];
237 int end = pattern[2];
245 start = tolower(start);
251 if (c >= start && c <= end)
255 if (pattern[0] == string[0])
258 if (tolower((int)pattern[0]) == tolower((int)string[0]))
268 return 0; /* no match */
274 if (patternLen >= 2) {
281 if (pattern[0] != string[0])
282 return 0; /* no match */
284 if (tolower((int)pattern[0]) != tolower((int)string[0]))
285 return 0; /* no match */
293 if (stringLen == 0) {
294 while(*pattern == '*') {
301 if (patternLen == 0 && stringLen == 0)
306 int JimStringCompare(const char *s1, int l1, const char *s2, int l2,
309 unsigned char *u1 = (unsigned char*) s1, *u2 = (unsigned char*) s2;
315 u1++; u2++; l1--; l2--;
317 if (!l1 && !l2) return 0;
321 if (tolower((int)*u1) != tolower((int)*u2))
322 return tolower((int)*u1)-tolower((int)*u2);
323 u1++; u2++; l1--; l2--;
325 if (!l1 && !l2) return 0;
330 /* Search 's1' inside 's2', starting to search from char 'index' of 's2'.
331 * The index of the first occurrence of s1 in s2 is returned.
332 * If s1 is not found inside s2, -1 is returned. */
333 int JimStringFirst(const char *s1, int l1, const char *s2, int l2, int index)
337 if (!l1 || !l2 || l1 > l2) return -1;
338 if (index < 0) index = 0;
340 for (i = index; i <= l2-l1; i++) {
341 if (memcmp(s2, s1, l1) == 0)
348 int Jim_WideToString(char *buf, jim_wide wideValue)
350 const char *fmt = "%" JIM_WIDE_MODIFIER;
351 return sprintf(buf, fmt, wideValue);
354 int Jim_StringToWide(const char *str, jim_wide *widePtr, int base)
358 #ifdef HAVE_LONG_LONG
359 *widePtr = JimStrtoll(str, &endptr, base);
361 *widePtr = strtol(str, &endptr, base);
365 if (endptr[0] != '\0') {
367 if (!isspace((int)*endptr))
375 int Jim_StringToIndex(const char *str, int *intPtr)
379 *intPtr = strtol(str, &endptr, 10);
382 if (endptr[0] != '\0') {
384 if (!isspace((int)*endptr))
392 /* The string representation of references has two features in order
393 * to make the GC faster. The first is that every reference starts
394 * with a non common character '~', in order to make the string matching
395 * fater. The second is that the reference string rep his 32 characters
396 * in length, this allows to avoid to check every object with a string
397 * repr < 32, and usually there are many of this objects. */
399 #define JIM_REFERENCE_SPACE (35+JIM_REFERENCE_TAGLEN)
401 static int JimFormatReference(char *buf, Jim_Reference *refPtr, jim_wide id)
403 const char *fmt = "<reference.<%s>.%020" JIM_WIDE_MODIFIER ">";
404 sprintf(buf, fmt, refPtr->tag, id);
405 return JIM_REFERENCE_SPACE;
408 int Jim_DoubleToString(char *buf, double doubleValue)
413 len = sprintf(buf, "%.17g", doubleValue);
416 if (*s == '.') return len;
419 /* Add a final ".0" if it's a number. But not
421 if (isdigit((int)buf[0])
422 || ((buf[0] == '-' || buf[0] == '+')
423 && isdigit((int)buf[1]))) {
432 int Jim_StringToDouble(const char *str, double *doublePtr)
436 *doublePtr = strtod(str, &endptr);
437 if (str[0] == '\0' || endptr[0] != '\0')
442 static jim_wide JimPowWide(jim_wide b, jim_wide e)
445 if ((b==0 && e!=0) || (e<0)) return 0;
446 for(i=0; i<e; i++) {res *= b;}
450 /* -----------------------------------------------------------------------------
452 * ---------------------------------------------------------------------------*/
454 /* Note that 'interp' may be NULL if not available in the
455 * context of the panic. It's only useful to get the error
456 * file descriptor, it will default to stderr otherwise. */
457 void Jim_Panic(Jim_Interp *interp, const char *fmt, ...)
460 FILE *fp = interp ? interp->stderr : stderr;
463 fprintf(fp, JIM_NL "JIM INTERPRETER PANIC: ");
464 vfprintf(fp, fmt, ap);
465 fprintf(fp, JIM_NL JIM_NL);
467 #ifdef HAVE_BACKTRACE
473 size = backtrace(array, 40);
474 strings = backtrace_symbols(array, size);
475 for (i = 0; i < size; i++)
476 fprintf(fp,"[backtrace] %s" JIM_NL, strings[i]);
477 fprintf(fp,"[backtrace] Include the above lines and the output" JIM_NL);
478 fprintf(fp,"[backtrace] of 'nm <executable>' in the bug report." JIM_NL);
484 /* -----------------------------------------------------------------------------
486 * ---------------------------------------------------------------------------*/
488 /* Macro used for memory debugging.
489 * In order for they to work you have to rename Jim_Alloc into _Jim_Alloc
490 * and similary for Jim_Realloc and Jim_Free */
492 #define Jim_Alloc(s) (printf("%s %d: Jim_Alloc(%d)\n",__FILE__,__LINE__,s),_Jim_Alloc(s))
493 #define Jim_Free(p) (printf("%s %d: Jim_Free(%p)\n",__FILE__,__LINE__,p),_Jim_Free(p))
494 #define Jim_Realloc(p,s) (printf("%s %d: Jim_Realloc(%p,%d)\n",__FILE__,__LINE__,p,s),_Jim_Realloc(p,s))
497 void *Jim_Alloc(int size)
499 void *p = malloc(size);
501 Jim_Panic(NULL,"Out of memory");
505 void Jim_Free(void *ptr) {
509 void *Jim_Realloc(void *ptr, int size)
511 void *p = realloc(ptr, size);
513 Jim_Panic(NULL,"Out of memory");
517 char *Jim_StrDup(const char *s)
520 char *copy = Jim_Alloc(l+1);
522 memcpy(copy, s, l+1);
526 char *Jim_StrDupLen(const char *s, int l)
528 char *copy = Jim_Alloc(l+1);
530 memcpy(copy, s, l+1);
531 copy[l] = 0; /* Just to be sure, original could be substring */
535 /* -----------------------------------------------------------------------------
536 * Time related functions
537 * ---------------------------------------------------------------------------*/
538 /* Returns microseconds of CPU used since start. */
539 static jim_wide JimClock(void)
541 #if (defined WIN32) && !(defined JIM_ANSIC)
543 QueryPerformanceFrequency(&f);
544 QueryPerformanceCounter(&t);
545 return (long)((t.QuadPart * 1000000) / f.QuadPart);
547 clock_t clocks = clock();
549 return (long)(clocks*(1000000/CLOCKS_PER_SEC));
553 /* -----------------------------------------------------------------------------
555 * ---------------------------------------------------------------------------*/
557 /* -------------------------- private prototypes ---------------------------- */
558 static int JimExpandHashTableIfNeeded(Jim_HashTable *ht);
559 static unsigned int JimHashTableNextPower(unsigned int size);
560 static int JimInsertHashEntry(Jim_HashTable *ht, const void *key);
562 /* -------------------------- hash functions -------------------------------- */
564 /* Thomas Wang's 32 bit Mix Function */
565 unsigned int Jim_IntHashFunction(unsigned int key)
576 /* Identity hash function for integer keys */
577 unsigned int Jim_IdentityHashFunction(unsigned int key)
582 /* Generic hash function (we are using to multiply by 9 and add the byte
584 unsigned int Jim_GenHashFunction(const unsigned char *buf, int len)
592 /* ----------------------------- API implementation ------------------------- */
593 /* reset an hashtable already initialized with ht_init().
594 * NOTE: This function should only called by ht_destroy(). */
595 static void JimResetHashTable(Jim_HashTable *ht)
604 /* Initialize the hash table */
605 int Jim_InitHashTable(Jim_HashTable *ht, Jim_HashTableType *type,
608 JimResetHashTable(ht);
610 ht->privdata = privDataPtr;
614 /* Resize the table to the minimal size that contains all the elements,
615 * but with the invariant of a USER/BUCKETS ration near to <= 1 */
616 int Jim_ResizeHashTable(Jim_HashTable *ht)
618 int minimal = ht->used;
620 if (minimal < JIM_HT_INITIAL_SIZE)
621 minimal = JIM_HT_INITIAL_SIZE;
622 return Jim_ExpandHashTable(ht, minimal);
625 /* Expand or create the hashtable */
626 int Jim_ExpandHashTable(Jim_HashTable *ht, unsigned int size)
628 Jim_HashTable n; /* the new hashtable */
629 unsigned int realsize = JimHashTableNextPower(size), i;
631 /* the size is invalid if it is smaller than the number of
632 * elements already inside the hashtable */
633 if (ht->used >= size)
636 Jim_InitHashTable(&n, ht->type, ht->privdata);
638 n.sizemask = realsize-1;
639 n.table = Jim_Alloc(realsize*sizeof(Jim_HashEntry*));
641 /* Initialize all the pointers to NULL */
642 memset(n.table, 0, realsize*sizeof(Jim_HashEntry*));
644 /* Copy all the elements from the old to the new table:
645 * note that if the old hash table is empty ht->size is zero,
646 * so Jim_ExpandHashTable just creates an hash table. */
648 for (i = 0; i < ht->size && ht->used > 0; i++) {
649 Jim_HashEntry *he, *nextHe;
651 if (ht->table[i] == NULL) continue;
653 /* For each hash entry on this slot... */
659 /* Get the new element index */
660 h = Jim_HashKey(ht, he->key) & n.sizemask;
661 he->next = n.table[h];
664 /* Pass to the next element */
668 assert(ht->used == 0);
671 /* Remap the new hashtable in the old */
676 /* Add an element to the target hash table */
677 int Jim_AddHashEntry(Jim_HashTable *ht, const void *key, void *val)
680 Jim_HashEntry *entry;
682 /* Get the index of the new element, or -1 if
683 * the element already exists. */
684 if ((index = JimInsertHashEntry(ht, key)) == -1)
687 /* Allocates the memory and stores key */
688 entry = Jim_Alloc(sizeof(*entry));
689 entry->next = ht->table[index];
690 ht->table[index] = entry;
692 /* Set the hash entry fields. */
693 Jim_SetHashKey(ht, entry, key);
694 Jim_SetHashVal(ht, entry, val);
699 /* Add an element, discarding the old if the key already exists */
700 int Jim_ReplaceHashEntry(Jim_HashTable *ht, const void *key, void *val)
702 Jim_HashEntry *entry;
704 /* Try to add the element. If the key
705 * does not exists Jim_AddHashEntry will suceed. */
706 if (Jim_AddHashEntry(ht, key, val) == JIM_OK)
708 /* It already exists, get the entry */
709 entry = Jim_FindHashEntry(ht, key);
710 /* Free the old value and set the new one */
711 Jim_FreeEntryVal(ht, entry);
712 Jim_SetHashVal(ht, entry, val);
716 /* Search and remove an element */
717 int Jim_DeleteHashEntry(Jim_HashTable *ht, const void *key)
720 Jim_HashEntry *he, *prevHe;
724 h = Jim_HashKey(ht, key) & ht->sizemask;
729 if (Jim_CompareHashKeys(ht, key, he->key)) {
730 /* Unlink the element from the list */
732 prevHe->next = he->next;
734 ht->table[h] = he->next;
735 Jim_FreeEntryKey(ht, he);
736 Jim_FreeEntryVal(ht, he);
744 return JIM_ERR; /* not found */
747 /* Destroy an entire hash table */
748 int Jim_FreeHashTable(Jim_HashTable *ht)
752 /* Free all the elements */
753 for (i = 0; i < ht->size && ht->used > 0; i++) {
754 Jim_HashEntry *he, *nextHe;
756 if ((he = ht->table[i]) == NULL) continue;
759 Jim_FreeEntryKey(ht, he);
760 Jim_FreeEntryVal(ht, he);
766 /* Free the table and the allocated cache structure */
768 /* Re-initialize the table */
769 JimResetHashTable(ht);
770 return JIM_OK; /* never fails */
773 Jim_HashEntry *Jim_FindHashEntry(Jim_HashTable *ht, const void *key)
778 if (ht->size == 0) return NULL;
779 h = Jim_HashKey(ht, key) & ht->sizemask;
782 if (Jim_CompareHashKeys(ht, key, he->key))
789 Jim_HashTableIterator *Jim_GetHashTableIterator(Jim_HashTable *ht)
791 Jim_HashTableIterator *iter = Jim_Alloc(sizeof(*iter));
796 iter->nextEntry = NULL;
800 Jim_HashEntry *Jim_NextHashEntry(Jim_HashTableIterator *iter)
803 if (iter->entry == NULL) {
806 (signed)iter->ht->size) break;
807 iter->entry = iter->ht->table[iter->index];
809 iter->entry = iter->nextEntry;
812 /* We need to save the 'next' here, the iterator user
813 * may delete the entry we are returning. */
814 iter->nextEntry = iter->entry->next;
821 /* ------------------------- private functions ------------------------------ */
823 /* Expand the hash table if needed */
824 static int JimExpandHashTableIfNeeded(Jim_HashTable *ht)
826 /* If the hash table is empty expand it to the intial size,
827 * if the table is "full" dobule its size. */
829 return Jim_ExpandHashTable(ht, JIM_HT_INITIAL_SIZE);
830 if (ht->size == ht->used)
831 return Jim_ExpandHashTable(ht, ht->size*2);
835 /* Our hash table capability is a power of two */
836 static unsigned int JimHashTableNextPower(unsigned int size)
838 unsigned int i = JIM_HT_INITIAL_SIZE;
840 if (size >= 2147483648U)
849 /* Returns the index of a free slot that can be populated with
850 * an hash entry for the given 'key'.
851 * If the key already exists, -1 is returned. */
852 static int JimInsertHashEntry(Jim_HashTable *ht, const void *key)
857 /* Expand the hashtable if needed */
858 if (JimExpandHashTableIfNeeded(ht) == JIM_ERR)
860 /* Compute the key hash value */
861 h = Jim_HashKey(ht, key) & ht->sizemask;
862 /* Search if this slot does not already contain the given key */
865 if (Jim_CompareHashKeys(ht, key, he->key))
872 /* ----------------------- StringCopy Hash Table Type ------------------------*/
874 static unsigned int JimStringCopyHTHashFunction(const void *key)
876 return Jim_GenHashFunction(key, strlen(key));
879 static const void *JimStringCopyHTKeyDup(void *privdata, const void *key)
881 int len = strlen(key);
882 char *copy = Jim_Alloc(len+1);
883 JIM_NOTUSED(privdata);
885 memcpy(copy, key, len);
890 static void *JimStringKeyValCopyHTValDup(void *privdata, const void *val)
892 int len = strlen(val);
893 char *copy = Jim_Alloc(len+1);
894 JIM_NOTUSED(privdata);
896 memcpy(copy, val, len);
901 static int JimStringCopyHTKeyCompare(void *privdata, const void *key1,
904 JIM_NOTUSED(privdata);
906 return strcmp(key1, key2) == 0;
909 static void JimStringCopyHTKeyDestructor(void *privdata, const void *key)
911 JIM_NOTUSED(privdata);
913 Jim_Free((void*)key); /* ATTENTION: const cast */
916 static void JimStringKeyValCopyHTValDestructor(void *privdata, void *val)
918 JIM_NOTUSED(privdata);
920 Jim_Free((void*)val); /* ATTENTION: const cast */
923 static Jim_HashTableType JimStringCopyHashTableType = {
924 JimStringCopyHTHashFunction, /* hash function */
925 JimStringCopyHTKeyDup, /* key dup */
927 JimStringCopyHTKeyCompare, /* key compare */
928 JimStringCopyHTKeyDestructor, /* key destructor */
929 NULL /* val destructor */
932 /* This is like StringCopy but does not auto-duplicate the key.
933 * It's used for intepreter's shared strings. */
934 static Jim_HashTableType JimSharedStringsHashTableType = {
935 JimStringCopyHTHashFunction, /* hash function */
938 JimStringCopyHTKeyCompare, /* key compare */
939 JimStringCopyHTKeyDestructor, /* key destructor */
940 NULL /* val destructor */
943 /* This is like StringCopy but also automatically handle dynamic
944 * allocated C strings as values. */
945 static Jim_HashTableType JimStringKeyValCopyHashTableType = {
946 JimStringCopyHTHashFunction, /* hash function */
947 JimStringCopyHTKeyDup, /* key dup */
948 JimStringKeyValCopyHTValDup, /* val dup */
949 JimStringCopyHTKeyCompare, /* key compare */
950 JimStringCopyHTKeyDestructor, /* key destructor */
951 JimStringKeyValCopyHTValDestructor, /* val destructor */
954 typedef struct AssocDataValue {
955 Jim_InterpDeleteProc *delProc;
959 static void JimAssocDataHashTableValueDestructor(void *privdata, void *data)
961 AssocDataValue *assocPtr = (AssocDataValue *)data;
962 if (assocPtr->delProc != NULL)
963 assocPtr->delProc((Jim_Interp *)privdata, assocPtr->data);
967 static Jim_HashTableType JimAssocDataHashTableType = {
968 JimStringCopyHTHashFunction, /* hash function */
969 JimStringCopyHTKeyDup, /* key dup */
971 JimStringCopyHTKeyCompare, /* key compare */
972 JimStringCopyHTKeyDestructor, /* key destructor */
973 JimAssocDataHashTableValueDestructor /* val destructor */
976 /* -----------------------------------------------------------------------------
977 * Stack - This is a simple generic stack implementation. It is used for
978 * example in the 'expr' expression compiler.
979 * ---------------------------------------------------------------------------*/
980 void Jim_InitStack(Jim_Stack *stack)
984 stack->vector = NULL;
987 void Jim_FreeStack(Jim_Stack *stack)
989 Jim_Free(stack->vector);
992 int Jim_StackLen(Jim_Stack *stack)
997 void Jim_StackPush(Jim_Stack *stack, void *element) {
998 int neededLen = stack->len+1;
999 if (neededLen > stack->maxlen) {
1000 stack->maxlen = neededLen*2;
1001 stack->vector = Jim_Realloc(stack->vector, sizeof(void*)*stack->maxlen);
1003 stack->vector[stack->len] = element;
1007 void *Jim_StackPop(Jim_Stack *stack)
1009 if (stack->len == 0) return NULL;
1011 return stack->vector[stack->len];
1014 void *Jim_StackPeek(Jim_Stack *stack)
1016 if (stack->len == 0) return NULL;
1017 return stack->vector[stack->len-1];
1020 void Jim_FreeStackElements(Jim_Stack *stack, void (*freeFunc)(void *ptr))
1024 for (i = 0; i < stack->len; i++)
1025 freeFunc(stack->vector[i]);
1028 /* -----------------------------------------------------------------------------
1030 * ---------------------------------------------------------------------------*/
1033 #define JIM_TT_NONE -1 /* No token returned */
1034 #define JIM_TT_STR 0 /* simple string */
1035 #define JIM_TT_ESC 1 /* string that needs escape chars conversion */
1036 #define JIM_TT_VAR 2 /* var substitution */
1037 #define JIM_TT_DICTSUGAR 3 /* Syntax sugar for [dict get], $foo(bar) */
1038 #define JIM_TT_CMD 4 /* command substitution */
1039 #define JIM_TT_SEP 5 /* word separator */
1040 #define JIM_TT_EOL 6 /* line separator */
1042 /* Additional token types needed for expressions */
1043 #define JIM_TT_SUBEXPR_START 7
1044 #define JIM_TT_SUBEXPR_END 8
1045 #define JIM_TT_EXPR_NUMBER 9
1046 #define JIM_TT_EXPR_OPERATOR 10
1049 #define JIM_PS_DEF 0 /* Default state */
1050 #define JIM_PS_QUOTE 1 /* Inside "" */
1052 /* Parser context structure. The same context is used both to parse
1053 * Tcl scripts and lists. */
1054 struct JimParserCtx {
1055 const char *prg; /* Program text */
1056 const char *p; /* Pointer to the point of the program we are parsing */
1057 int len; /* Left length of 'prg' */
1058 int linenr; /* Current line number */
1060 const char *tend; /* Returned token is at tstart-tend in 'prg'. */
1061 int tline; /* Line number of the returned token */
1062 int tt; /* Token type */
1063 int eof; /* Non zero if EOF condition is true. */
1064 int state; /* Parser state */
1065 int comment; /* Non zero if the next chars may be a comment. */
1068 #define JimParserEof(c) ((c)->eof)
1069 #define JimParserTstart(c) ((c)->tstart)
1070 #define JimParserTend(c) ((c)->tend)
1071 #define JimParserTtype(c) ((c)->tt)
1072 #define JimParserTline(c) ((c)->tline)
1074 static int JimParseScript(struct JimParserCtx *pc);
1075 static int JimParseSep(struct JimParserCtx *pc);
1076 static int JimParseEol(struct JimParserCtx *pc);
1077 static int JimParseCmd(struct JimParserCtx *pc);
1078 static int JimParseVar(struct JimParserCtx *pc);
1079 static int JimParseBrace(struct JimParserCtx *pc);
1080 static int JimParseStr(struct JimParserCtx *pc);
1081 static int JimParseComment(struct JimParserCtx *pc);
1082 static char *JimParserGetToken(struct JimParserCtx *pc,
1083 int *lenPtr, int *typePtr, int *linePtr);
1085 /* Initialize a parser context.
1086 * 'prg' is a pointer to the program text, linenr is the line
1087 * number of the first line contained in the program. */
1088 void JimParserInit(struct JimParserCtx *pc, const char *prg,
1089 int len, int linenr)
1097 pc->tt = JIM_TT_NONE;
1099 pc->state = JIM_PS_DEF;
1100 pc->linenr = linenr;
1104 int JimParseScript(struct JimParserCtx *pc)
1106 while(1) { /* the while is used to reiterate with continue if needed */
1110 pc->tline = pc->linenr;
1111 pc->tt = JIM_TT_EOL;
1117 if (*(pc->p+1) == '\n')
1118 return JimParseSep(pc);
1121 return JimParseStr(pc);
1127 if (pc->state == JIM_PS_DEF)
1128 return JimParseSep(pc);
1131 return JimParseStr(pc);
1137 if (pc->state == JIM_PS_DEF)
1138 return JimParseEol(pc);
1140 return JimParseStr(pc);
1144 return JimParseCmd(pc);
1148 if (JimParseVar(pc) == JIM_ERR) {
1149 pc->tstart = pc->tend = pc->p++; pc->len--;
1150 pc->tline = pc->linenr;
1151 pc->tt = JIM_TT_STR;
1158 JimParseComment(pc);
1161 return JimParseStr(pc);
1165 return JimParseStr(pc);
1172 int JimParseSep(struct JimParserCtx *pc)
1175 pc->tline = pc->linenr;
1176 while (*pc->p == ' ' || *pc->p == '\t' || *pc->p == '\r' ||
1177 (*pc->p == '\\' && *(pc->p+1) == '\n')) {
1178 if (*pc->p == '\\') {
1185 pc->tt = JIM_TT_SEP;
1189 int JimParseEol(struct JimParserCtx *pc)
1192 pc->tline = pc->linenr;
1193 while (*pc->p == ' ' || *pc->p == '\n' ||
1194 *pc->p == '\t' || *pc->p == '\r' || *pc->p == ';') {
1200 pc->tt = JIM_TT_EOL;
1204 /* Todo. Don't stop if ']' appears inside {} or quoted.
1205 * Also should handle the case of puts [string length "]"] */
1206 int JimParseCmd(struct JimParserCtx *pc)
1211 pc->tstart = ++pc->p; pc->len--;
1212 pc->tline = pc->linenr;
1216 } else if (*pc->p == '[' && blevel == 0) {
1218 } else if (*pc->p == ']' && blevel == 0) {
1221 } else if (*pc->p == '\\') {
1223 } else if (*pc->p == '{') {
1225 } else if (*pc->p == '}') {
1228 } else if (*pc->p == '\n')
1233 pc->tt = JIM_TT_CMD;
1234 if (*pc->p == ']') {
1240 int JimParseVar(struct JimParserCtx *pc)
1242 int brace = 0, stop = 0, ttype = JIM_TT_VAR;
1244 pc->tstart = ++pc->p; pc->len--; /* skip the $ */
1245 pc->tline = pc->linenr;
1246 if (*pc->p == '{') {
1247 pc->tstart = ++pc->p; pc->len--;
1252 if (*pc->p == '}' || pc->len == 0) {
1257 else if (*pc->p == '\n')
1267 if (!((*pc->p >= 'a' && *pc->p <= 'z') ||
1268 (*pc->p >= 'A' && *pc->p <= 'Z') ||
1269 (*pc->p >= '0' && *pc->p <= '9') || *pc->p == '_'))
1275 /* Parse [dict get] syntax sugar. */
1276 if (*pc->p == '(') {
1277 while (*pc->p != ')' && pc->len) {
1279 if (*pc->p == '\\' && pc->len >= 2) {
1280 pc->p += 2; pc->len -= 2;
1283 if (*pc->p != '\0') {
1286 ttype = JIM_TT_DICTSUGAR;
1290 /* Check if we parsed just the '$' character.
1291 * That's not a variable so an error is returned
1292 * to tell the state machine to consider this '$' just
1294 if (pc->tstart == pc->p) {
1302 int JimParseBrace(struct JimParserCtx *pc)
1306 pc->tstart = ++pc->p; pc->len--;
1307 pc->tline = pc->linenr;
1309 if (*pc->p == '\\' && pc->len >= 2) {
1313 } else if (*pc->p == '{') {
1315 } else if (pc->len == 0 || *pc->p == '}') {
1317 if (pc->len == 0 || level == 0) {
1322 pc->tt = JIM_TT_STR;
1325 } else if (*pc->p == '\n') {
1330 return JIM_OK; /* unreached */
1333 int JimParseStr(struct JimParserCtx *pc)
1335 int newword = (pc->tt == JIM_TT_SEP || pc->tt == JIM_TT_EOL ||
1336 pc->tt == JIM_TT_NONE || pc->tt == JIM_TT_STR);
1337 if (newword && *pc->p == '{') {
1338 return JimParseBrace(pc);
1339 } else if (newword && *pc->p == '"') {
1340 pc->state = JIM_PS_QUOTE;
1344 pc->tline = pc->linenr;
1348 pc->tt = JIM_TT_ESC;
1353 if (pc->state == JIM_PS_DEF &&
1354 *(pc->p+1) == '\n') {
1356 pc->tt = JIM_TT_ESC;
1366 pc->tt = JIM_TT_ESC;
1373 if (pc->state == JIM_PS_DEF) {
1375 pc->tt = JIM_TT_ESC;
1377 } else if (*pc->p == '\n') {
1382 if (pc->state == JIM_PS_QUOTE) {
1384 pc->tt = JIM_TT_ESC;
1386 pc->state = JIM_PS_DEF;
1393 return JIM_OK; /* unreached */
1396 int JimParseComment(struct JimParserCtx *pc)
1399 if (*pc->p == '\n') {
1401 if (*(pc->p-1) != '\\') {
1411 /* xdigitval and odigitval are helper functions for JimParserGetToken() */
1412 static int xdigitval(int c)
1414 if (c >= '0' && c <= '9') return c-'0';
1415 if (c >= 'a' && c <= 'f') return c-'a'+10;
1416 if (c >= 'A' && c <= 'F') return c-'A'+10;
1420 static int odigitval(int c)
1422 if (c >= '0' && c <= '7') return c-'0';
1426 /* Perform Tcl escape substitution of 's', storing the result
1427 * string into 'dest'. The escaped string is guaranteed to
1428 * be the same length or shorted than the source string.
1429 * Slen is the length of the string at 's', if it's -1 the string
1430 * length will be calculated by the function.
1432 * The function returns the length of the resulting string. */
1433 static int JimEscape(char *dest, const char *s, int slen)
1441 for (i = 0; i < slen; i++) {
1445 case 'a': *p++ = 0x7; i++; break;
1446 case 'b': *p++ = 0x8; i++; break;
1447 case 'f': *p++ = 0xc; i++; break;
1448 case 'n': *p++ = 0xa; i++; break;
1449 case 'r': *p++ = 0xd; i++; break;
1450 case 't': *p++ = 0x9; i++; break;
1451 case 'v': *p++ = 0xb; i++; break;
1452 case '\0': *p++ = '\\'; i++; break;
1453 case '\n': *p++ = ' '; i++; break;
1455 if (s[i+1] == 'x') {
1457 int c = xdigitval(s[i+2]);
1464 c = xdigitval(s[i+3]);
1474 } else if (s[i+1] >= '0' && s[i+1] <= '7')
1477 int c = odigitval(s[i+1]);
1479 c = odigitval(s[i+2]);
1486 c = odigitval(s[i+3]);
1512 /* Returns a dynamically allocated copy of the current token in the
1513 * parser context. The function perform conversion of escapes if
1514 * the token is of type JIM_TT_ESC.
1516 * Note that after the conversion, tokens that are grouped with
1517 * braces in the source code, are always recognizable from the
1518 * identical string obtained in a different way from the type.
1520 * For exmple the string:
1524 * will return as first token "expand", of type JIM_TT_STR
1530 * will return as first token "expand", of type JIM_TT_ESC
1532 char *JimParserGetToken(struct JimParserCtx *pc,
1533 int *lenPtr, int *typePtr, int *linePtr)
1535 const char *start, *end;
1539 start = JimParserTstart(pc);
1540 end = JimParserTend(pc);
1542 if (lenPtr) *lenPtr = 0;
1543 if (typePtr) *typePtr = JimParserTtype(pc);
1544 if (linePtr) *linePtr = JimParserTline(pc);
1545 token = Jim_Alloc(1);
1549 len = (end-start)+1;
1550 token = Jim_Alloc(len+1);
1551 if (JimParserTtype(pc) != JIM_TT_ESC) {
1552 /* No escape conversion needed? Just copy it. */
1553 memcpy(token, start, len);
1556 /* Else convert the escape chars. */
1557 len = JimEscape(token, start, len);
1559 if (lenPtr) *lenPtr = len;
1560 if (typePtr) *typePtr = JimParserTtype(pc);
1561 if (linePtr) *linePtr = JimParserTline(pc);
1565 /* The following functin is not really part of the parsing engine of Jim,
1566 * but it somewhat related. Given an string and its length, it tries
1567 * to guess if the script is complete or there are instead " " or { }
1568 * open and not completed. This is useful for interactive shells
1569 * implementation and for [info complete].
1571 * If 'stateCharPtr' != NULL, the function stores ' ' on complete script,
1572 * '{' on scripts incomplete missing one or more '}' to be balanced.
1573 * '"' on scripts incomplete missing a '"' char.
1575 * If the script is complete, 1 is returned, otherwise 0. */
1576 int Jim_ScriptIsComplete(const char *s, int len, char *stateCharPtr)
1590 } else if (state == '"') {
1597 } else if (state == ' ') {
1614 *stateCharPtr = state;
1615 return state == ' ';
1618 /* -----------------------------------------------------------------------------
1620 * ---------------------------------------------------------------------------*/
1621 static int JimParseListSep(struct JimParserCtx *pc);
1622 static int JimParseListStr(struct JimParserCtx *pc);
1624 int JimParseList(struct JimParserCtx *pc)
1627 pc->tstart = pc->tend = pc->p;
1628 pc->tline = pc->linenr;
1629 pc->tt = JIM_TT_EOL;
1638 if (pc->state == JIM_PS_DEF)
1639 return JimParseListSep(pc);
1641 return JimParseListStr(pc);
1644 return JimParseListStr(pc);
1650 int JimParseListSep(struct JimParserCtx *pc)
1653 pc->tline = pc->linenr;
1654 while (*pc->p == ' ' || *pc->p == '\t' || *pc->p == '\r' || *pc->p == '\n')
1659 pc->tt = JIM_TT_SEP;
1663 int JimParseListStr(struct JimParserCtx *pc)
1665 int newword = (pc->tt == JIM_TT_SEP || pc->tt == JIM_TT_EOL ||
1666 pc->tt == JIM_TT_NONE);
1667 if (newword && *pc->p == '{') {
1668 return JimParseBrace(pc);
1669 } else if (newword && *pc->p == '"') {
1670 pc->state = JIM_PS_QUOTE;
1674 pc->tline = pc->linenr;
1678 pc->tt = JIM_TT_ESC;
1689 if (pc->state == JIM_PS_DEF) {
1691 pc->tt = JIM_TT_ESC;
1693 } else if (*pc->p == '\n') {
1698 if (pc->state == JIM_PS_QUOTE) {
1700 pc->tt = JIM_TT_ESC;
1702 pc->state = JIM_PS_DEF;
1709 return JIM_OK; /* unreached */
1712 /* -----------------------------------------------------------------------------
1713 * Jim_Obj related functions
1714 * ---------------------------------------------------------------------------*/
1716 /* Return a new initialized object. */
1717 Jim_Obj *Jim_NewObj(Jim_Interp *interp)
1721 /* -- Check if there are objects in the free list -- */
1722 if (interp->freeList != NULL) {
1723 /* -- Unlink the object from the free list -- */
1724 objPtr = interp->freeList;
1725 interp->freeList = objPtr->nextObjPtr;
1727 /* -- No ready to use objects: allocate a new one -- */
1728 objPtr = Jim_Alloc(sizeof(*objPtr));
1731 /* Object is returned with refCount of 0. Every
1732 * kind of GC implemented should take care to don't try
1733 * to scan objects with refCount == 0. */
1734 objPtr->refCount = 0;
1735 /* All the other fields are left not initialized to save time.
1736 * The caller will probably want set they to the right
1739 /* -- Put the object into the live list -- */
1740 objPtr->prevObjPtr = NULL;
1741 objPtr->nextObjPtr = interp->liveList;
1742 if (interp->liveList)
1743 interp->liveList->prevObjPtr = objPtr;
1744 interp->liveList = objPtr;
1749 /* Free an object. Actually objects are never freed, but
1750 * just moved to the free objects list, where they will be
1751 * reused by Jim_NewObj(). */
1752 void Jim_FreeObj(Jim_Interp *interp, Jim_Obj *objPtr)
1754 /* Check if the object was already freed, panic. */
1755 if (objPtr->refCount != 0) {
1756 Jim_Panic(interp,"!!!Object %p freed with bad refcount %d", objPtr,
1759 /* Free the internal representation */
1760 Jim_FreeIntRep(interp, objPtr);
1761 /* Free the string representation */
1762 if (objPtr->bytes != NULL) {
1763 if (objPtr->bytes != JimEmptyStringRep)
1764 Jim_Free(objPtr->bytes);
1766 /* Unlink the object from the live objects list */
1767 if (objPtr->prevObjPtr)
1768 objPtr->prevObjPtr->nextObjPtr = objPtr->nextObjPtr;
1769 if (objPtr->nextObjPtr)
1770 objPtr->nextObjPtr->prevObjPtr = objPtr->prevObjPtr;
1771 if (interp->liveList == objPtr)
1772 interp->liveList = objPtr->nextObjPtr;
1773 /* Link the object into the free objects list */
1774 objPtr->prevObjPtr = NULL;
1775 objPtr->nextObjPtr = interp->freeList;
1776 if (interp->freeList)
1777 interp->freeList->prevObjPtr = objPtr;
1778 interp->freeList = objPtr;
1779 objPtr->refCount = -1;
1782 /* Invalidate the string representation of an object. */
1783 void Jim_InvalidateStringRep(Jim_Obj *objPtr)
1785 if (objPtr->bytes != NULL) {
1786 if (objPtr->bytes != JimEmptyStringRep)
1787 Jim_Free(objPtr->bytes);
1789 objPtr->bytes = NULL;
1792 #define Jim_SetStringRep(o, b, l) \
1793 do { (o)->bytes = b; (o)->length = l; } while (0)
1795 /* Set the initial string representation for an object.
1796 * Does not try to free an old one. */
1797 void Jim_InitStringRep(Jim_Obj *objPtr, const char *bytes, int length)
1800 objPtr->bytes = JimEmptyStringRep;
1803 objPtr->bytes = Jim_Alloc(length+1);
1804 objPtr->length = length;
1805 memcpy(objPtr->bytes, bytes, length);
1806 objPtr->bytes[length] = '\0';
1810 /* Duplicate an object. The returned object has refcount = 0. */
1811 Jim_Obj *Jim_DuplicateObj(Jim_Interp *interp, Jim_Obj *objPtr)
1815 dupPtr = Jim_NewObj(interp);
1816 if (objPtr->bytes == NULL) {
1817 /* Object does not have a valid string representation. */
1818 dupPtr->bytes = NULL;
1820 Jim_InitStringRep(dupPtr, objPtr->bytes, objPtr->length);
1822 if (objPtr->typePtr != NULL) {
1823 if (objPtr->typePtr->dupIntRepProc == NULL) {
1824 dupPtr->internalRep = objPtr->internalRep;
1826 objPtr->typePtr->dupIntRepProc(interp, objPtr, dupPtr);
1828 dupPtr->typePtr = objPtr->typePtr;
1830 dupPtr->typePtr = NULL;
1835 /* Return the string representation for objPtr. If the object
1836 * string representation is invalid, calls the method to create
1837 * a new one starting from the internal representation of the object. */
1838 const char *Jim_GetString(Jim_Obj *objPtr, int *lenPtr)
1840 if (objPtr->bytes == NULL) {
1841 /* Invalid string repr. Generate it. */
1842 if (objPtr->typePtr->updateStringProc == NULL) {
1843 Jim_Panic(NULL,"UpdataStringProc called against '%s' type.",
1844 objPtr->typePtr->name);
1846 objPtr->typePtr->updateStringProc(objPtr);
1849 *lenPtr = objPtr->length;
1850 return objPtr->bytes;
1853 /* Just returns the length of the object's string rep */
1854 int Jim_Length(Jim_Obj *objPtr)
1858 Jim_GetString(objPtr, &len);
1862 /* -----------------------------------------------------------------------------
1864 * ---------------------------------------------------------------------------*/
1865 static void DupStringInternalRep(Jim_Interp *interp, Jim_Obj *srcPtr, Jim_Obj *dupPtr);
1866 static int SetStringFromAny(Jim_Interp *interp, struct Jim_Obj *objPtr);
1868 static Jim_ObjType stringObjType = {
1871 DupStringInternalRep,
1873 JIM_TYPE_REFERENCES,
1876 void DupStringInternalRep(Jim_Interp *interp, Jim_Obj *srcPtr, Jim_Obj *dupPtr)
1878 JIM_NOTUSED(interp);
1880 /* This is a bit subtle: the only caller of this function
1881 * should be Jim_DuplicateObj(), that will copy the
1882 * string representaion. After the copy, the duplicated
1883 * object will not have more room in teh buffer than
1884 * srcPtr->length bytes. So we just set it to length. */
1885 dupPtr->internalRep.strValue.maxLength = srcPtr->length;
1888 int SetStringFromAny(Jim_Interp *interp, Jim_Obj *objPtr)
1890 /* Get a fresh string representation. */
1891 (void) Jim_GetString(objPtr, NULL);
1892 /* Free any other internal representation. */
1893 Jim_FreeIntRep(interp, objPtr);
1894 /* Set it as string, i.e. just set the maxLength field. */
1895 objPtr->typePtr = &stringObjType;
1896 objPtr->internalRep.strValue.maxLength = objPtr->length;
1900 Jim_Obj *Jim_NewStringObj(Jim_Interp *interp, const char *s, int len)
1902 Jim_Obj *objPtr = Jim_NewObj(interp);
1906 /* Alloc/Set the string rep. */
1908 objPtr->bytes = JimEmptyStringRep;
1911 objPtr->bytes = Jim_Alloc(len+1);
1912 objPtr->length = len;
1913 memcpy(objPtr->bytes, s, len);
1914 objPtr->bytes[len] = '\0';
1917 /* No typePtr field for the vanilla string object. */
1918 objPtr->typePtr = NULL;
1922 /* This version does not try to duplicate the 's' pointer, but
1923 * use it directly. */
1924 Jim_Obj *Jim_NewStringObjNoAlloc(Jim_Interp *interp, char *s, int len)
1926 Jim_Obj *objPtr = Jim_NewObj(interp);
1930 Jim_SetStringRep(objPtr, s, len);
1931 objPtr->typePtr = NULL;
1935 /* Low-level string append. Use it only against objects
1936 * of type "string". */
1937 void StringAppendString(Jim_Obj *objPtr, const char *str, int len)
1943 needlen = objPtr->length + len;
1944 if (objPtr->internalRep.strValue.maxLength < needlen ||
1945 objPtr->internalRep.strValue.maxLength == 0) {
1946 if (objPtr->bytes == JimEmptyStringRep) {
1947 objPtr->bytes = Jim_Alloc((needlen*2)+1);
1949 objPtr->bytes = Jim_Realloc(objPtr->bytes, (needlen*2)+1);
1951 objPtr->internalRep.strValue.maxLength = needlen*2;
1953 memcpy(objPtr->bytes + objPtr->length, str, len);
1954 objPtr->bytes[objPtr->length+len] = '\0';
1955 objPtr->length += len;
1958 /* Low-level wrapper to append an object. */
1959 void StringAppendObj(Jim_Obj *objPtr, Jim_Obj *appendObjPtr)
1964 str = Jim_GetString(appendObjPtr, &len);
1965 StringAppendString(objPtr, str, len);
1968 /* Higher level API to append strings to objects. */
1969 void Jim_AppendString(Jim_Interp *interp, Jim_Obj *objPtr, const char *str,
1972 if (Jim_IsShared(objPtr))
1973 Jim_Panic(interp,"Jim_AppendString called with shared object");
1974 if (objPtr->typePtr != &stringObjType)
1975 SetStringFromAny(interp, objPtr);
1976 StringAppendString(objPtr, str, len);
1979 void Jim_AppendObj(Jim_Interp *interp, Jim_Obj *objPtr,
1980 Jim_Obj *appendObjPtr)
1985 str = Jim_GetString(appendObjPtr, &len);
1986 Jim_AppendString(interp, objPtr, str, len);
1989 void Jim_AppendStrings(Jim_Interp *interp, Jim_Obj *objPtr, ...)
1993 if (objPtr->typePtr != &stringObjType)
1994 SetStringFromAny(interp, objPtr);
1995 va_start(ap, objPtr);
1997 char *s = va_arg(ap, char*);
1999 if (s == NULL) break;
2000 Jim_AppendString(interp, objPtr, s, -1);
2005 int Jim_StringEqObj(Jim_Obj *aObjPtr, Jim_Obj *bObjPtr, int nocase)
2007 const char *aStr, *bStr;
2010 if (aObjPtr == bObjPtr) return 1;
2011 aStr = Jim_GetString(aObjPtr, &aLen);
2012 bStr = Jim_GetString(bObjPtr, &bLen);
2013 if (aLen != bLen) return 0;
2015 return memcmp(aStr, bStr, aLen) == 0;
2016 for (i = 0; i < aLen; i++) {
2017 if (tolower((int)aStr[i]) != tolower((int)bStr[i]))
2023 int Jim_StringMatchObj(Jim_Obj *patternObjPtr, Jim_Obj *objPtr,
2026 const char *pattern, *string;
2027 int patternLen, stringLen;
2029 pattern = Jim_GetString(patternObjPtr, &patternLen);
2030 string = Jim_GetString(objPtr, &stringLen);
2031 return JimStringMatch(pattern, patternLen, string, stringLen, nocase);
2034 int Jim_StringCompareObj(Jim_Obj *firstObjPtr,
2035 Jim_Obj *secondObjPtr, int nocase)
2037 const char *s1, *s2;
2040 s1 = Jim_GetString(firstObjPtr, &l1);
2041 s2 = Jim_GetString(secondObjPtr, &l2);
2042 return JimStringCompare(s1, l1, s2, l2, nocase);
2045 /* Convert a range, as returned by Jim_GetRange(), into
2046 * an absolute index into an object of the specified length.
2047 * This function may return negative values, or values
2048 * bigger or equal to the length of the list if the index
2049 * is out of range. */
2050 static int JimRelToAbsIndex(int len, int index)
2057 /* Convert a pair of index as normalize by JimRelToAbsIndex(),
2058 * into a range stored in *firstPtr, *lastPtr, *rangeLenPtr, suitable
2059 * for implementation of commands like [string range] and [lrange].
2061 * The resulting range is guaranteed to address valid elements of
2063 static void JimRelToAbsRange(int len, int first, int last,
2064 int *firstPtr, int *lastPtr, int *rangeLenPtr)
2071 rangeLen = last-first+1;
2078 rangeLen -= (last-(len-1));
2083 if (rangeLen < 0) rangeLen = 0;
2087 *rangeLenPtr = rangeLen;
2090 Jim_Obj *Jim_StringRangeObj(Jim_Interp *interp,
2091 Jim_Obj *strObjPtr, Jim_Obj *firstObjPtr, Jim_Obj *lastObjPtr)
2097 if (Jim_GetIndex(interp, firstObjPtr, &first) != JIM_OK ||
2098 Jim_GetIndex(interp, lastObjPtr, &last) != JIM_OK)
2100 str = Jim_GetString(strObjPtr, &len);
2101 first = JimRelToAbsIndex(len, first);
2102 last = JimRelToAbsIndex(len, last);
2103 JimRelToAbsRange(len, first, last, &first, &last, &rangeLen);
2104 return Jim_NewStringObj(interp, str+first, rangeLen);
2107 static Jim_Obj *JimStringToLower(Jim_Interp *interp, Jim_Obj *strObjPtr)
2109 char *buf = Jim_Alloc(strObjPtr->length+1);
2112 memcpy(buf, strObjPtr->bytes, strObjPtr->length+1);
2113 for (i = 0; i < strObjPtr->length; i++)
2114 buf[i] = tolower(buf[i]);
2115 return Jim_NewStringObjNoAlloc(interp, buf, strObjPtr->length);
2118 static Jim_Obj *JimStringToUpper(Jim_Interp *interp, Jim_Obj *strObjPtr)
2120 char *buf = Jim_Alloc(strObjPtr->length+1);
2123 memcpy(buf, strObjPtr->bytes, strObjPtr->length+1);
2124 for (i = 0; i < strObjPtr->length; i++)
2125 buf[i] = toupper(buf[i]);
2126 return Jim_NewStringObjNoAlloc(interp, buf, strObjPtr->length);
2129 /* This is the core of the [format] command.
2130 * TODO: Export it, make it real... for now only %s and %%
2131 * specifiers supported. */
2132 Jim_Obj *Jim_FormatString(Jim_Interp *interp, Jim_Obj *fmtObjPtr,
2133 int objc, Jim_Obj *const *objv)
2139 fmt = Jim_GetString(fmtObjPtr, &fmtLen);
2140 resObjPtr = Jim_NewStringObj(interp, "", 0);
2142 const char *p = fmt;
2146 while (*fmt != '%' && fmtLen) {
2149 Jim_AppendString(interp, resObjPtr, p, fmt-p);
2152 fmt++; fmtLen--; /* skip '%' */
2155 Jim_FreeNewObj(interp, resObjPtr);
2156 Jim_SetResultString(interp,
2157 "not enough arguments for all format specifiers", -1);
2165 Jim_AppendObj(interp, resObjPtr, objv[0]);
2169 if (Jim_GetWide(interp, objv[0], &wideValue) == JIM_ERR) {
2170 Jim_FreeNewObj(interp, resObjPtr);
2173 c = (char) wideValue;
2174 Jim_AppendString(interp, resObjPtr, &c, 1);
2177 Jim_AppendString(interp, resObjPtr, "%" , 1);
2180 spec[0] = *fmt; spec[1] = '\0';
2181 Jim_FreeNewObj(interp, resObjPtr);
2182 Jim_SetResult(interp, Jim_NewEmptyStringObj(interp));
2183 Jim_AppendStrings(interp, Jim_GetResult(interp),
2184 "bad field specifier \"", spec, "\"", NULL);
2193 /* -----------------------------------------------------------------------------
2194 * Compared String Object
2195 * ---------------------------------------------------------------------------*/
2197 /* This is strange object that allows to compare a C literal string
2198 * with a Jim object in very short time if the same comparison is done
2199 * multiple times. For example every time the [if] command is executed,
2200 * Jim has to check if a given argument is "else". This comparions if
2201 * the code has no errors are true most of the times, so we can cache
2202 * inside the object the pointer of the string of the last matching
2203 * comparison. Because most C compilers perform literal sharing,
2204 * so that: char *x = "foo", char *y = "foo", will lead to x == y,
2205 * this works pretty well even if comparisons are at different places
2206 * inside the C code. */
2208 static Jim_ObjType comparedStringObjType = {
2213 JIM_TYPE_REFERENCES,
2216 /* The only way this object is exposed to the API is via the following
2217 * function. Returns true if the string and the object string repr.
2218 * are the same, otherwise zero is returned.
2220 * Note: this isn't binary safe, but it hardly needs to be.*/
2221 int Jim_CompareStringImmediate(Jim_Interp *interp, Jim_Obj *objPtr,
2224 if (objPtr->typePtr == &comparedStringObjType &&
2225 objPtr->internalRep.ptr == str)
2228 const char *objStr = Jim_GetString(objPtr, NULL);
2229 if (strcmp(str, objStr) != 0) return 0;
2230 if (objPtr->typePtr != &comparedStringObjType) {
2231 Jim_FreeIntRep(interp, objPtr);
2232 objPtr->typePtr = &comparedStringObjType;
2234 objPtr->internalRep.ptr = (char*)str; /*ATTENTION: const cast */
2239 int qsortCompareStringPointers(const void *a, const void *b)
2241 char * const *sa = (char * const *)a;
2242 char * const *sb = (char * const *)b;
2243 return strcmp(*sa, *sb);
2246 int Jim_GetEnum(Jim_Interp *interp, Jim_Obj *objPtr,
2247 const char **tablePtr, int *indexPtr, const char *name, int flags)
2249 const char **entryPtr = NULL;
2250 char **tablePtrSorted;
2254 for (entryPtr = tablePtr, i = 0; *entryPtr != NULL; entryPtr++, i++) {
2255 if (Jim_CompareStringImmediate(interp, objPtr, *entryPtr)) {
2259 count++; /* If nothing matches, this will reach the len of tablePtr */
2261 if (flags & JIM_ERRMSG) {
2264 Jim_SetResult(interp, Jim_NewEmptyStringObj(interp));
2265 Jim_AppendStrings(interp, Jim_GetResult(interp),
2266 "bad ", name, " \"", Jim_GetString(objPtr, NULL), "\": must be one of ",
2268 tablePtrSorted = Jim_Alloc(sizeof(char*)*count);
2269 memcpy(tablePtrSorted, tablePtr, sizeof(char*)*count);
2270 qsort(tablePtrSorted, count, sizeof(char*), qsortCompareStringPointers);
2271 for (i = 0; i < count; i++) {
2272 if (i+1 == count && count > 1)
2273 Jim_AppendString(interp, Jim_GetResult(interp), "or ", -1);
2274 Jim_AppendString(interp, Jim_GetResult(interp),
2275 tablePtrSorted[i], -1);
2277 Jim_AppendString(interp, Jim_GetResult(interp), ", ", -1);
2279 Jim_Free(tablePtrSorted);
2284 /* -----------------------------------------------------------------------------
2287 * This object is just a string from the language point of view, but
2288 * in the internal representation it contains the filename and line number
2289 * where this given token was read. This information is used by
2290 * Jim_EvalObj() if the object passed happens to be of type "source".
2292 * This allows to propagate the information about line numbers and file
2293 * names and give error messages with absolute line numbers.
2295 * Note that this object uses shared strings for filenames, and the
2296 * pointer to the filename together with the line number is taken into
2297 * the space for the "inline" internal represenation of the Jim_Object,
2298 * so there is almost memory zero-overhead.
2300 * Also the object will be converted to something else if the given
2301 * token it represents in the source file is not something to be
2302 * evaluated (not a script), and will be specialized in some other way,
2303 * so the time overhead is alzo null.
2304 * ---------------------------------------------------------------------------*/
2306 static void FreeSourceInternalRep(Jim_Interp *interp, Jim_Obj *objPtr);
2307 static void DupSourceInternalRep(Jim_Interp *interp, Jim_Obj *srcPtr, Jim_Obj *dupPtr);
2309 static Jim_ObjType sourceObjType = {
2311 FreeSourceInternalRep,
2312 DupSourceInternalRep,
2314 JIM_TYPE_REFERENCES,
2317 void FreeSourceInternalRep(Jim_Interp *interp, Jim_Obj *objPtr)
2319 Jim_ReleaseSharedString(interp,
2320 objPtr->internalRep.sourceValue.fileName);
2323 void DupSourceInternalRep(Jim_Interp *interp, Jim_Obj *srcPtr, Jim_Obj *dupPtr)
2325 dupPtr->internalRep.sourceValue.fileName =
2326 Jim_GetSharedString(interp,
2327 srcPtr->internalRep.sourceValue.fileName);
2328 dupPtr->internalRep.sourceValue.lineNumber =
2329 dupPtr->internalRep.sourceValue.lineNumber;
2330 dupPtr->typePtr = &sourceObjType;
2333 static void JimSetSourceInfo(Jim_Interp *interp, Jim_Obj *objPtr,
2334 const char *fileName, int lineNumber)
2336 if (Jim_IsShared(objPtr))
2337 Jim_Panic(interp,"JimSetSourceInfo called with shared object");
2338 if (objPtr->typePtr != NULL)
2339 Jim_Panic(interp,"JimSetSourceInfo called with typePtr != NULL");
2340 objPtr->internalRep.sourceValue.fileName =
2341 Jim_GetSharedString(interp, fileName);
2342 objPtr->internalRep.sourceValue.lineNumber = lineNumber;
2343 objPtr->typePtr = &sourceObjType;
2346 /* -----------------------------------------------------------------------------
2348 * ---------------------------------------------------------------------------*/
2350 #define JIM_CMDSTRUCT_EXPAND -1
2352 static void FreeScriptInternalRep(Jim_Interp *interp, Jim_Obj *objPtr);
2353 static void DupScriptInternalRep(Jim_Interp *interp, Jim_Obj *srcPtr, Jim_Obj *dupPtr);
2354 static int SetScriptFromAny(Jim_Interp *interp, struct Jim_Obj *objPtr);
2356 static Jim_ObjType scriptObjType = {
2358 FreeScriptInternalRep,
2359 DupScriptInternalRep,
2361 JIM_TYPE_REFERENCES,
2364 /* The ScriptToken structure represents every token into a scriptObj.
2365 * Every token contains an associated Jim_Obj that can be specialized
2366 * by commands operating on it. */
2367 typedef struct ScriptToken {
2373 /* This is the script object internal representation. An array of
2374 * ScriptToken structures, with an associated command structure array.
2375 * The command structure is a pre-computed representation of the
2376 * command length and arguments structure as a simple liner array
2379 * For example the script:
2382 * set $i $x$y [foo]BAR
2384 * will produce a ScriptObj with the following Tokens:
2401 * This is a description of the tokens, separators, and of lines.
2402 * The command structure instead represents the number of arguments
2403 * of every command, followed by the tokens of which every argument
2404 * is composed. So for the example script, the cmdstruct array will
2409 * Because "puts hello" has two args (2), composed of single tokens (1 1)
2410 * While "set $i $x$y [foo]BAR" has four (4) args, the first two
2411 * composed of single tokens (1 1) and the last two of double tokens
2414 * The precomputation of the command structure makes Jim_Eval() faster,
2415 * and simpler because there aren't dynamic lengths / allocations.
2417 * -- {expand} handling --
2419 * Expand is handled in a special way. When a command
2420 * contains at least an argument with the {expand} prefix,
2421 * the command structure presents a -1 before the integer
2422 * describing the number of arguments. This is used in order
2423 * to send the command exection to a different path in case
2424 * of {expand} and guarantee a fast path for the more common
2425 * case. Also, the integers describing the number of tokens
2426 * are expressed with negative sign, to allow for fast check
2427 * of what's an {expand}-prefixed argument and what not.
2429 * For example the command:
2431 * list {expand}{1 2}
2433 * Will produce the following cmdstruct array:
2437 * -- the substFlags field of the structure --
2439 * The scriptObj structure is used to represent both "script" objects
2440 * and "subst" objects. In the second case, the cmdStruct related
2441 * fields are not used at all, but there is an additional field used
2442 * that is 'substFlags': this represents the flags used to turn
2443 * the string into the intenral representation used to perform the
2444 * substitution. If this flags are not what the application requires
2445 * the scriptObj is created again. For example the script:
2447 * subst -nocommands $string
2448 * subst -novariables $string
2450 * Will recreate the internal representation of the $string object
2453 typedef struct ScriptObj {
2454 int len; /* Length as number of tokens. */
2455 int commands; /* number of top-level commands in script. */
2456 ScriptToken *token; /* Tokens array. */
2457 int *cmdStruct; /* commands structure */
2458 int csLen; /* length of the cmdStruct array. */
2459 int substFlags; /* flags used for the compilation of "subst" objects */
2460 int inUse; /* Used to share a ScriptObj. Currently
2461 only used by Jim_EvalObj() as protection against
2462 shimmering of the currently evaluated object. */
2466 void FreeScriptInternalRep(Jim_Interp *interp, Jim_Obj *objPtr)
2469 struct ScriptObj *script = (void*) objPtr->internalRep.ptr;
2472 if (script->inUse != 0) return;
2473 for (i = 0; i < script->len; i++) {
2474 if (script->token[i].objPtr != NULL)
2475 Jim_DecrRefCount(interp, script->token[i].objPtr);
2477 Jim_Free(script->token);
2478 Jim_Free(script->cmdStruct);
2479 Jim_Free(script->fileName);
2483 void DupScriptInternalRep(Jim_Interp *interp, Jim_Obj *srcPtr, Jim_Obj *dupPtr)
2485 JIM_NOTUSED(interp);
2486 JIM_NOTUSED(srcPtr);
2488 /* Just returns an simple string. */
2489 dupPtr->typePtr = NULL;
2492 /* Add a new token to the internal repr of a script object */
2493 static void ScriptObjAddToken(Jim_Interp *interp, struct ScriptObj *script,
2494 char *strtoken, int len, int type, char *filename, int linenr)
2497 struct ScriptToken *token;
2499 prevtype = (script->len == 0) ? JIM_TT_EOL : \
2500 script->token[script->len-1].type;
2501 /* Skip tokens without meaning, like words separators
2502 * following a word separator or an end of command and
2504 if (prevtype == JIM_TT_EOL) {
2505 if (type == JIM_TT_EOL || type == JIM_TT_SEP) {
2509 } else if (prevtype == JIM_TT_SEP) {
2510 if (type == JIM_TT_SEP) {
2513 } else if (type == JIM_TT_EOL) {
2514 /* If an EOL is following by a SEP, drop the previous
2517 Jim_DecrRefCount(interp, script->token[script->len].objPtr);
2519 } else if (prevtype != JIM_TT_EOL && prevtype != JIM_TT_SEP &&
2520 type == JIM_TT_ESC && len == 0)
2522 /* Don't add empty tokens used in interpolation */
2526 /* Make space for a new istruction */
2528 script->token = Jim_Realloc(script->token,
2529 sizeof(ScriptToken)*script->len);
2530 /* Initialize the new token */
2531 token = script->token+(script->len-1);
2533 /* Every object is intially as a string, but the
2534 * internal type may be specialized during execution of the
2536 token->objPtr = Jim_NewStringObjNoAlloc(interp, strtoken, len);
2537 /* To add source info to SEP and EOL tokens is useless because
2538 * they will never by called as arguments of Jim_EvalObj(). */
2539 if (filename && type != JIM_TT_SEP && type != JIM_TT_EOL)
2540 JimSetSourceInfo(interp, token->objPtr, filename, linenr);
2541 Jim_IncrRefCount(token->objPtr);
2542 token->linenr = linenr;
2545 /* Add an integer into the command structure field of the script object. */
2546 static void ScriptObjAddInt(struct ScriptObj *script, int val)
2549 script->cmdStruct = Jim_Realloc(script->cmdStruct,
2550 sizeof(int)*script->csLen);
2551 script->cmdStruct[script->csLen-1] = val;
2554 /* Search a Jim_Obj contained in 'script' with the same stinrg repr.
2555 * of objPtr. Search nested script objects recursively. */
2556 static Jim_Obj *ScriptSearchLiteral(Jim_Interp *interp, ScriptObj *script,
2557 ScriptObj *scriptBarrier, Jim_Obj *objPtr)
2561 for (i = 0; i < script->len; i++) {
2562 if (script->token[i].objPtr != objPtr &&
2563 Jim_StringEqObj(script->token[i].objPtr, objPtr, 0)) {
2564 return script->token[i].objPtr;
2566 /* Enter recursively on scripts only if the object
2567 * is not the same as the one we are searching for
2568 * shared occurrences. */
2569 if (script->token[i].objPtr->typePtr == &scriptObjType &&
2570 script->token[i].objPtr != objPtr) {
2571 Jim_Obj *foundObjPtr;
2573 ScriptObj *subScript =
2574 script->token[i].objPtr->internalRep.ptr;
2575 /* Don't recursively enter the script we are trying
2576 * to make shared to avoid circular references. */
2577 if (subScript == scriptBarrier) continue;
2578 if (subScript != script) {
2580 ScriptSearchLiteral(interp, subScript,
2581 scriptBarrier, objPtr);
2582 if (foundObjPtr != NULL)
2590 /* Share literals of a script recursively sharing sub-scripts literals. */
2591 static void ScriptShareLiterals(Jim_Interp *interp, ScriptObj *script,
2592 ScriptObj *topLevelScript)
2597 /* Try to share with toplevel object. */
2598 if (topLevelScript != NULL) {
2599 for (i = 0; i < script->len; i++) {
2600 Jim_Obj *foundObjPtr;
2601 char *str = script->token[i].objPtr->bytes;
2603 if (script->token[i].objPtr->refCount != 1) continue;
2604 if (script->token[i].objPtr->typePtr == &scriptObjType) continue;
2605 if (strchr(str, ' ') || strchr(str, '\n')) continue;
2606 foundObjPtr = ScriptSearchLiteral(interp,
2608 script, /* barrier */
2609 script->token[i].objPtr);
2610 if (foundObjPtr != NULL) {
2611 Jim_IncrRefCount(foundObjPtr);
2612 Jim_DecrRefCount(interp,
2613 script->token[i].objPtr);
2614 script->token[i].objPtr = foundObjPtr;
2618 /* Try to share locally */
2619 for (i = 0; i < script->len; i++) {
2620 char *str = script->token[i].objPtr->bytes;
2622 if (script->token[i].objPtr->refCount != 1) continue;
2623 if (strchr(str, ' ') || strchr(str, '\n')) continue;
2624 for (j = 0; j < script->len; j++) {
2625 if (script->token[i].objPtr !=
2626 script->token[j].objPtr &&
2627 Jim_StringEqObj(script->token[i].objPtr,
2628 script->token[j].objPtr, 0))
2630 Jim_IncrRefCount(script->token[j].objPtr);
2631 Jim_DecrRefCount(interp,
2632 script->token[i].objPtr);
2633 script->token[i].objPtr =
2634 script->token[j].objPtr;
2640 /* This method takes the string representation of an object
2641 * as a Tcl script, and generates the pre-parsed internal representation
2643 int SetScriptFromAny(Jim_Interp *interp, struct Jim_Obj *objPtr)
2646 const char *scriptText = Jim_GetString(objPtr, &scriptTextLen);
2647 struct JimParserCtx parser;
2648 struct ScriptObj *script = Jim_Alloc(sizeof(*script));
2650 int args, tokens, start, end, i;
2651 int initialLineNumber;
2652 int propagateSourceInfo = 0;
2656 script->commands = 0;
2657 script->token = NULL;
2658 script->cmdStruct = NULL;
2660 /* Try to get information about filename / line number */
2661 if (objPtr->typePtr == &sourceObjType) {
2663 Jim_StrDup(objPtr->internalRep.sourceValue.fileName);
2664 initialLineNumber = objPtr->internalRep.sourceValue.lineNumber;
2665 propagateSourceInfo = 1;
2667 script->fileName = Jim_StrDup("?");
2668 initialLineNumber = 1;
2671 JimParserInit(&parser, scriptText, scriptTextLen, initialLineNumber);
2672 while(!JimParserEof(&parser)) {
2674 int len, type, linenr;
2676 JimParseScript(&parser);
2677 token = JimParserGetToken(&parser, &len, &type, &linenr);
2678 ScriptObjAddToken(interp, script, token, len, type,
2679 propagateSourceInfo ? script->fileName : NULL,
2682 token = script->token;
2684 /* Compute the command structure array
2685 * (see the ScriptObj struct definition for more info) */
2686 start = 0; /* Current command start token index */
2687 end = -1; /* Current command end token index */
2689 int expand = 0; /* expand flag. set to 1 on {expand} form. */
2690 int interpolation = 0; /* set to 1 if there is at least one
2691 argument of the command obtained via
2692 interpolation of more tokens. */
2693 /* Search for the end of command, while
2694 * count the number of args. */
2696 if (start >= script->len) break;
2697 args = 1; /* Number of args in current command */
2698 while (token[end].type != JIM_TT_EOL) {
2699 if (end == 0 || token[end-1].type == JIM_TT_SEP ||
2700 token[end-1].type == JIM_TT_EOL)
2702 if (token[end].type == JIM_TT_STR &&
2703 token[end+1].type != JIM_TT_SEP &&
2704 token[end+1].type != JIM_TT_EOL &&
2705 (!strcmp(token[end].objPtr->bytes, "expand") ||
2706 !strcmp(token[end].objPtr->bytes, "*")))
2709 if (token[end].type == JIM_TT_SEP)
2713 interpolation = !((end-start+1) == args*2);
2714 /* Add the 'number of arguments' info into cmdstruct.
2715 * Negative value if there is list expansion involved. */
2717 ScriptObjAddInt(script, -1);
2718 ScriptObjAddInt(script, args);
2719 /* Now add info about the number of tokens. */
2720 tokens = 0; /* Number of tokens in current argument. */
2722 for (i = start; i <= end; i++) {
2723 if (token[i].type == JIM_TT_SEP ||
2724 token[i].type == JIM_TT_EOL)
2726 if (tokens == 1 && expand)
2728 ScriptObjAddInt(script,
2729 expand ? -tokens : tokens);
2734 } else if (tokens == 0 && token[i].type == JIM_TT_STR &&
2735 (!strcmp(token[i].objPtr->bytes, "expand") ||
2736 !strcmp(token[i].objPtr->bytes, "*")))
2743 /* Perform literal sharing, but only for objects that appear
2744 * to be scripts written as literals inside the source code,
2745 * and not computed at runtime. Literal sharing is a costly
2746 * operation that should be done only against objects that
2747 * are likely to require compilation only the first time, and
2748 * then are executed multiple times. */
2749 if (propagateSourceInfo && interp->framePtr->procBodyObjPtr) {
2750 Jim_Obj *bodyObjPtr = interp->framePtr->procBodyObjPtr;
2751 if (bodyObjPtr->typePtr == &scriptObjType) {
2752 ScriptObj *bodyScript =
2753 bodyObjPtr->internalRep.ptr;
2754 ScriptShareLiterals(interp, script, bodyScript);
2756 } else if (propagateSourceInfo) {
2757 ScriptShareLiterals(interp, script, NULL);
2759 /* Free the old internal rep and set the new one. */
2760 Jim_FreeIntRep(interp, objPtr);
2761 Jim_SetIntRepPtr(objPtr, script);
2762 objPtr->typePtr = &scriptObjType;
2766 ScriptObj *Jim_GetScript(Jim_Interp *interp, Jim_Obj *objPtr)
2768 if (objPtr->typePtr != &scriptObjType) {
2769 SetScriptFromAny(interp, objPtr);
2771 return (ScriptObj*) Jim_GetIntRepPtr(objPtr);
2774 /* -----------------------------------------------------------------------------
2776 * ---------------------------------------------------------------------------*/
2778 /* Commands HashTable Type.
2780 * Keys are dynamic allocated strings, Values are Jim_Cmd structures. */
2781 static void Jim_CommandsHT_ValDestructor(void *interp, void *val)
2783 Jim_Cmd *cmdPtr = (void*) val;
2785 if (cmdPtr->cmdProc == NULL) {
2786 Jim_DecrRefCount(interp, cmdPtr->argListObjPtr);
2787 Jim_DecrRefCount(interp, cmdPtr->bodyObjPtr);
2788 if (cmdPtr->staticVars) {
2789 Jim_FreeHashTable(cmdPtr->staticVars);
2790 Jim_Free(cmdPtr->staticVars);
2792 } else if (cmdPtr->delProc != NULL) {
2793 /* If it was a C coded command, call the delProc if any */
2794 cmdPtr->delProc(interp, cmdPtr->privData);
2799 static Jim_HashTableType JimCommandsHashTableType = {
2800 JimStringCopyHTHashFunction, /* hash function */
2801 JimStringCopyHTKeyDup, /* key dup */
2803 JimStringCopyHTKeyCompare, /* key compare */
2804 JimStringCopyHTKeyDestructor, /* key destructor */
2805 Jim_CommandsHT_ValDestructor /* val destructor */
2808 /* ------------------------- Commands related functions --------------------- */
2810 int Jim_CreateCommand(Jim_Interp *interp, const char *cmdName,
2811 Jim_CmdProc cmdProc, void *privData, Jim_DelCmdProc delProc)
2816 he = Jim_FindHashEntry(&interp->commands, cmdName);
2817 if (he == NULL) { /* New command to create */
2818 cmdPtr = Jim_Alloc(sizeof(*cmdPtr));
2819 cmdPtr->cmdProc = cmdProc;
2820 cmdPtr->privData = privData;
2821 cmdPtr->delProc = delProc;
2822 Jim_AddHashEntry(&interp->commands, cmdName, cmdPtr);
2824 Jim_InterpIncrProcEpoch(interp);
2825 /* Free the arglist/body objects if it was a Tcl procedure */
2827 if (cmdPtr->cmdProc == NULL) {
2828 Jim_DecrRefCount(interp, cmdPtr->argListObjPtr);
2829 Jim_DecrRefCount(interp, cmdPtr->bodyObjPtr);
2830 if (cmdPtr->staticVars) {
2831 Jim_FreeHashTable(cmdPtr->staticVars);
2832 Jim_Free(cmdPtr->staticVars);
2834 cmdPtr->staticVars = NULL;
2835 } else if (cmdPtr->delProc != NULL) {
2836 /* If it was a C coded command, call the delProc if any */
2837 cmdPtr->delProc(interp, cmdPtr->privData);
2839 cmdPtr->cmdProc = cmdProc;
2840 cmdPtr->privData = privData;
2842 /* There is no need to increment the 'proc epoch' because
2843 * creation of a new procedure can never affect existing
2844 * cached commands. We don't do negative caching. */
2848 int Jim_CreateProcedure(Jim_Interp *interp, const char *cmdName,
2849 Jim_Obj *argListObjPtr, Jim_Obj *staticsListObjPtr, Jim_Obj *bodyObjPtr,
2850 int arityMin, int arityMax)
2854 cmdPtr = Jim_Alloc(sizeof(*cmdPtr));
2855 cmdPtr->cmdProc = NULL; /* Not a C coded command */
2856 cmdPtr->argListObjPtr = argListObjPtr;
2857 cmdPtr->bodyObjPtr = bodyObjPtr;
2858 Jim_IncrRefCount(argListObjPtr);
2859 Jim_IncrRefCount(bodyObjPtr);
2860 cmdPtr->arityMin = arityMin;
2861 cmdPtr->arityMax = arityMax;
2862 cmdPtr->staticVars = NULL;
2864 /* Create the statics hash table. */
2865 if (staticsListObjPtr) {
2868 Jim_ListLength(interp, staticsListObjPtr, &len);
2870 cmdPtr->staticVars = Jim_Alloc(sizeof(Jim_HashTable));
2871 Jim_InitHashTable(cmdPtr->staticVars, &JimVariablesHashTableType,
2873 for (i = 0; i < len; i++) {
2874 Jim_Obj *objPtr, *initObjPtr, *nameObjPtr;
2878 Jim_ListIndex(interp, staticsListObjPtr, i, &objPtr, JIM_NONE);
2879 /* Check if it's composed of two elements. */
2880 Jim_ListLength(interp, objPtr, &subLen);
2881 if (subLen == 1 || subLen == 2) {
2882 /* Try to get the variable value from the current
2884 Jim_ListIndex(interp, objPtr, 0, &nameObjPtr, JIM_NONE);
2886 initObjPtr = Jim_GetVariable(interp, nameObjPtr,
2888 if (initObjPtr == NULL) {
2889 Jim_SetResult(interp,
2890 Jim_NewEmptyStringObj(interp));
2891 Jim_AppendStrings(interp, Jim_GetResult(interp),
2892 "variable for initialization of static \"",
2893 Jim_GetString(nameObjPtr, NULL),
2894 "\" not found in the local context",
2899 Jim_ListIndex(interp, objPtr, 1, &initObjPtr, JIM_NONE);
2901 varPtr = Jim_Alloc(sizeof(*varPtr));
2902 varPtr->objPtr = initObjPtr;
2903 Jim_IncrRefCount(initObjPtr);
2904 varPtr->linkFramePtr = NULL;
2905 if (Jim_AddHashEntry(cmdPtr->staticVars,
2906 Jim_GetString(nameObjPtr, NULL),
2909 Jim_SetResult(interp, Jim_NewEmptyStringObj(interp));
2910 Jim_AppendStrings(interp, Jim_GetResult(interp),
2911 "static variable name \"",
2912 Jim_GetString(objPtr, NULL), "\"",
2913 " duplicated in statics list", NULL);
2914 Jim_DecrRefCount(interp, initObjPtr);
2919 Jim_SetResult(interp, Jim_NewEmptyStringObj(interp));
2920 Jim_AppendStrings(interp, Jim_GetResult(interp),
2921 "too many fields in static specifier \"",
2922 objPtr, "\"", NULL);
2929 /* Add the new command */
2931 /* it may already exist, so we try to delete the old one */
2932 if (Jim_DeleteHashEntry(&interp->commands, cmdName) != JIM_ERR) {
2933 /* There was an old procedure with the same name, this requires
2934 * a 'proc epoch' update. */
2935 Jim_InterpIncrProcEpoch(interp);
2937 /* If a procedure with the same name didn't existed there is no need
2938 * to increment the 'proc epoch' because creation of a new procedure
2939 * can never affect existing cached commands. We don't do
2940 * negative caching. */
2941 Jim_AddHashEntry(&interp->commands, cmdName, cmdPtr);
2945 Jim_FreeHashTable(cmdPtr->staticVars);
2946 Jim_Free(cmdPtr->staticVars);
2947 Jim_DecrRefCount(interp, argListObjPtr);
2948 Jim_DecrRefCount(interp, bodyObjPtr);
2953 int Jim_DeleteCommand(Jim_Interp *interp, const char *cmdName)
2955 if (Jim_DeleteHashEntry(&interp->commands, cmdName) == JIM_ERR)
2957 Jim_InterpIncrProcEpoch(interp);
2961 int Jim_RenameCommand(Jim_Interp *interp, const char *oldName,
2962 const char *newName)
2966 Jim_Cmd *copyCmdPtr;
2968 if (newName[0] == '\0') /* Delete! */
2969 return Jim_DeleteCommand(interp, oldName);
2971 he = Jim_FindHashEntry(&interp->commands, oldName);
2973 return JIM_ERR; /* Invalid command name */
2975 copyCmdPtr = Jim_Alloc(sizeof(Jim_Cmd));
2976 *copyCmdPtr = *cmdPtr;
2977 /* In order to avoid that a procedure will get arglist/body/statics
2978 * freed by the hash table methods, fake a C-coded command
2979 * setting cmdPtr->cmdProc as not NULL */
2980 cmdPtr->cmdProc = (void*)1;
2981 /* Also make sure delProc is NULL. */
2982 cmdPtr->delProc = NULL;
2983 /* Destroy the old command, and make sure the new is freed
2985 Jim_DeleteHashEntry(&interp->commands, oldName);
2986 Jim_DeleteHashEntry(&interp->commands, newName);
2987 /* Now the new command. We are sure it can't fail because
2988 * the target name was already freed. */
2989 Jim_AddHashEntry(&interp->commands, newName, copyCmdPtr);
2990 /* Increment the epoch */
2991 Jim_InterpIncrProcEpoch(interp);
2995 /* -----------------------------------------------------------------------------
2997 * ---------------------------------------------------------------------------*/
2999 static int SetCommandFromAny(Jim_Interp *interp, struct Jim_Obj *objPtr);
3001 static Jim_ObjType commandObjType = {
3006 JIM_TYPE_REFERENCES,
3009 int SetCommandFromAny(Jim_Interp *interp, Jim_Obj *objPtr)
3012 const char *cmdName;
3014 /* Get the string representation */
3015 cmdName = Jim_GetString(objPtr, NULL);
3016 /* Lookup this name into the commands hash table */
3017 he = Jim_FindHashEntry(&interp->commands, cmdName);
3021 /* Free the old internal repr and set the new one. */
3022 Jim_FreeIntRep(interp, objPtr);
3023 objPtr->typePtr = &commandObjType;
3024 objPtr->internalRep.cmdValue.procEpoch = interp->procEpoch;
3025 objPtr->internalRep.cmdValue.cmdPtr = (void*)he->val;
3029 /* This function returns the command structure for the command name
3030 * stored in objPtr. It tries to specialize the objPtr to contain
3031 * a cached info instead to perform the lookup into the hash table
3032 * every time. The information cached may not be uptodate, in such
3033 * a case the lookup is performed and the cache updated. */
3034 Jim_Cmd *Jim_GetCommand(Jim_Interp *interp, Jim_Obj *objPtr, int flags)
3036 if ((objPtr->typePtr != &commandObjType ||
3037 objPtr->internalRep.cmdValue.procEpoch != interp->procEpoch) &&
3038 SetCommandFromAny(interp, objPtr) == JIM_ERR) {
3039 if (flags & JIM_ERRMSG) {
3040 Jim_SetResult(interp, Jim_NewEmptyStringObj(interp));
3041 Jim_AppendStrings(interp, Jim_GetResult(interp),
3042 "invalid command name \"", objPtr->bytes, "\"",
3047 return objPtr->internalRep.cmdValue.cmdPtr;
3050 /* -----------------------------------------------------------------------------
3052 * ---------------------------------------------------------------------------*/
3054 /* Variables HashTable Type.
3056 * Keys are dynamic allocated strings, Values are Jim_Var structures. */
3057 static void JimVariablesHTValDestructor(void *interp, void *val)
3059 Jim_Var *varPtr = (void*) val;
3061 Jim_DecrRefCount(interp, varPtr->objPtr);
3065 static Jim_HashTableType JimVariablesHashTableType = {
3066 JimStringCopyHTHashFunction, /* hash function */
3067 JimStringCopyHTKeyDup, /* key dup */
3069 JimStringCopyHTKeyCompare, /* key compare */
3070 JimStringCopyHTKeyDestructor, /* key destructor */
3071 JimVariablesHTValDestructor /* val destructor */
3074 /* -----------------------------------------------------------------------------
3076 * ---------------------------------------------------------------------------*/
3078 #define JIM_DICT_SUGAR 100 /* Only returned by SetVariableFromAny() */
3080 static int SetVariableFromAny(Jim_Interp *interp, struct Jim_Obj *objPtr);
3082 static Jim_ObjType variableObjType = {
3087 JIM_TYPE_REFERENCES,
3090 /* Return true if the string "str" looks like syntax sugar for [dict]. I.e.
3091 * is in the form "varname(key)". */
3092 static int Jim_NameIsDictSugar(const char *str, int len)
3096 if (len && str[len-1] == ')' && strchr(str, '(') != NULL)
3101 /* This method should be called only by the variable API.
3102 * It returns JIM_OK on success (variable already exists),
3103 * JIM_ERR if it does not exists, JIM_DICT_GLUE if it's not
3104 * a variable name, but syntax glue for [dict] i.e. the last
3105 * character is ')' */
3106 int SetVariableFromAny(Jim_Interp *interp, struct Jim_Obj *objPtr)
3109 const char *varName;
3112 /* Check if the object is already an uptodate variable */
3113 if (objPtr->typePtr == &variableObjType &&
3114 objPtr->internalRep.varValue.callFrameId == interp->framePtr->id)
3115 return JIM_OK; /* nothing to do */
3116 /* Get the string representation */
3117 varName = Jim_GetString(objPtr, &len);
3118 /* Make sure it's not syntax glue to get/set dict. */
3119 if (Jim_NameIsDictSugar(varName, len))
3120 return JIM_DICT_SUGAR;
3121 /* Lookup this name into the variables hash table */
3122 he = Jim_FindHashEntry(&interp->framePtr->vars, varName);
3124 /* Try with static vars. */
3125 if (interp->framePtr->staticVars == NULL)
3127 if (!(he = Jim_FindHashEntry(interp->framePtr->staticVars, varName)))
3130 /* Free the old internal repr and set the new one. */
3131 Jim_FreeIntRep(interp, objPtr);
3132 objPtr->typePtr = &variableObjType;
3133 objPtr->internalRep.varValue.callFrameId = interp->framePtr->id;
3134 objPtr->internalRep.varValue.varPtr = (void*)he->val;
3138 /* -------------------- Variables related functions ------------------------- */
3139 static int JimDictSugarSet(Jim_Interp *interp, Jim_Obj *ObjPtr,
3140 Jim_Obj *valObjPtr);
3141 static Jim_Obj *JimDictSugarGet(Jim_Interp *interp, Jim_Obj *ObjPtr);
3143 /* For now that's dummy. Variables lookup should be optimized
3144 * in many ways, with caching of lookups, and possibly with
3145 * a table of pre-allocated vars in every CallFrame for local vars.
3146 * All the caching should also have an 'epoch' mechanism similar
3147 * to the one used by Tcl for procedures lookup caching. */
3149 int Jim_SetVariable(Jim_Interp *interp, Jim_Obj *nameObjPtr, Jim_Obj *valObjPtr)
3155 if ((err = SetVariableFromAny(interp, nameObjPtr)) != JIM_OK) {
3156 /* Check for [dict] syntax sugar. */
3157 if (err == JIM_DICT_SUGAR)
3158 return JimDictSugarSet(interp, nameObjPtr, valObjPtr);
3159 /* New variable to create */
3160 name = Jim_GetString(nameObjPtr, NULL);
3162 var = Jim_Alloc(sizeof(*var));
3163 var->objPtr = valObjPtr;
3164 Jim_IncrRefCount(valObjPtr);
3165 var->linkFramePtr = NULL;
3166 /* Insert the new variable */
3167 Jim_AddHashEntry(&interp->framePtr->vars, name, var);
3168 /* Make the object int rep a variable */
3169 Jim_FreeIntRep(interp, nameObjPtr);
3170 nameObjPtr->typePtr = &variableObjType;
3171 nameObjPtr->internalRep.varValue.callFrameId =
3172 interp->framePtr->id;
3173 nameObjPtr->internalRep.varValue.varPtr = var;
3175 var = nameObjPtr->internalRep.varValue.varPtr;
3176 if (var->linkFramePtr == NULL) {
3177 Jim_IncrRefCount(valObjPtr);
3178 Jim_DecrRefCount(interp, var->objPtr);
3179 var->objPtr = valObjPtr;
3180 } else { /* Else handle the link */
3181 Jim_CallFrame *savedCallFrame;
3183 savedCallFrame = interp->framePtr;
3184 interp->framePtr = var->linkFramePtr;
3185 err = Jim_SetVariable(interp, var->objPtr, valObjPtr);
3186 interp->framePtr = savedCallFrame;
3194 int Jim_SetVariableStr(Jim_Interp *interp, const char *name, Jim_Obj *objPtr)
3196 Jim_Obj *nameObjPtr;
3199 nameObjPtr = Jim_NewStringObj(interp, name, -1);
3200 Jim_IncrRefCount(nameObjPtr);
3201 result = Jim_SetVariable(interp, nameObjPtr, objPtr);
3202 Jim_DecrRefCount(interp, nameObjPtr);
3206 int Jim_SetGlobalVariableStr(Jim_Interp *interp, const char *name, Jim_Obj *objPtr)
3208 Jim_CallFrame *savedFramePtr;
3211 savedFramePtr = interp->framePtr;
3212 interp->framePtr = interp->topFramePtr;
3213 result = Jim_SetVariableStr(interp, name, objPtr);
3214 interp->framePtr = savedFramePtr;
3218 int Jim_SetVariableStrWithStr(Jim_Interp *interp, const char *name, const char *val)
3220 Jim_Obj *nameObjPtr, *valObjPtr;
3223 nameObjPtr = Jim_NewStringObj(interp, name, -1);
3224 valObjPtr = Jim_NewStringObj(interp, val, -1);
3225 Jim_IncrRefCount(nameObjPtr);
3226 Jim_IncrRefCount(valObjPtr);
3227 result = Jim_SetVariable(interp, nameObjPtr, valObjPtr);
3228 Jim_DecrRefCount(interp, nameObjPtr);
3229 Jim_DecrRefCount(interp, valObjPtr);
3233 int Jim_SetVariableLink(Jim_Interp *interp, Jim_Obj *nameObjPtr,
3234 Jim_Obj *targetNameObjPtr, Jim_CallFrame *targetCallFrame)
3236 const char *varName;
3239 /* Check for cycles. */
3240 if (interp->framePtr == targetCallFrame) {
3241 Jim_Obj *objPtr = targetNameObjPtr;
3243 /* Cycles are only possible with 'uplevel 0' */
3245 if (Jim_StringEqObj(objPtr, nameObjPtr, 0)) {
3246 Jim_SetResultString(interp,
3247 "can't upvar from variable to itself", -1);
3250 if (SetVariableFromAny(interp, objPtr) != JIM_OK)
3252 varPtr = objPtr->internalRep.varValue.varPtr;
3253 if (varPtr->linkFramePtr != targetCallFrame) break;
3254 objPtr = varPtr->objPtr;
3257 varName = Jim_GetString(nameObjPtr, &len);
3258 if (Jim_NameIsDictSugar(varName, len)) {
3259 Jim_SetResultString(interp,
3260 "Dict key syntax invalid as link source", -1);
3263 /* Perform the binding */
3264 Jim_SetVariable(interp, nameObjPtr, targetNameObjPtr);
3265 /* We are now sure 'nameObjPtr' type is variableObjType */
3266 nameObjPtr->internalRep.varValue.varPtr->linkFramePtr = targetCallFrame;
3270 /* Return the Jim_Obj pointer associated with a variable name,
3271 * or NULL if the variable was not found in the current context.
3272 * The same optimization discussed in the comment to the
3273 * 'SetVariable' function should apply here. */
3274 Jim_Obj *Jim_GetVariable(Jim_Interp *interp, Jim_Obj *nameObjPtr, int flags)
3278 /* All the rest is handled here */
3279 if ((err = SetVariableFromAny(interp, nameObjPtr)) != JIM_OK) {
3280 /* Check for [dict] syntax sugar. */
3281 if (err == JIM_DICT_SUGAR)
3282 return JimDictSugarGet(interp, nameObjPtr);
3283 if (flags & JIM_ERRMSG) {
3284 Jim_SetResult(interp, Jim_NewEmptyStringObj(interp));
3285 Jim_AppendStrings(interp, Jim_GetResult(interp),
3286 "can't read \"", nameObjPtr->bytes,
3287 "\": no such variable", NULL);
3293 Jim_CallFrame *savedCallFrame;
3295 varPtr = nameObjPtr->internalRep.varValue.varPtr;
3296 if (varPtr->linkFramePtr == NULL)
3297 return varPtr->objPtr;
3298 /* The variable is a link? Resolve it. */
3299 savedCallFrame = interp->framePtr;
3300 interp->framePtr = varPtr->linkFramePtr;
3301 objPtr = Jim_GetVariable(interp, varPtr->objPtr, JIM_NONE);
3302 if (objPtr == NULL && flags & JIM_ERRMSG) {
3303 Jim_SetResult(interp, Jim_NewEmptyStringObj(interp));
3304 Jim_AppendStrings(interp, Jim_GetResult(interp),
3305 "can't read \"", nameObjPtr->bytes,
3306 "\": no such variable", NULL);
3308 interp->framePtr = savedCallFrame;
3313 Jim_Obj *Jim_GetGlobalVariable(Jim_Interp *interp, Jim_Obj *nameObjPtr,
3316 Jim_CallFrame *savedFramePtr;
3319 savedFramePtr = interp->framePtr;
3320 interp->framePtr = interp->topFramePtr;
3321 objPtr = Jim_GetVariable(interp, nameObjPtr, flags);
3322 interp->framePtr = savedFramePtr;
3327 Jim_Obj *Jim_GetVariableStr(Jim_Interp *interp, const char *name, int flags)
3329 Jim_Obj *nameObjPtr, *varObjPtr;
3331 nameObjPtr = Jim_NewStringObj(interp, name, -1);
3332 Jim_IncrRefCount(nameObjPtr);
3333 varObjPtr = Jim_GetVariable(interp, nameObjPtr, flags);
3334 Jim_DecrRefCount(interp, nameObjPtr);
3338 Jim_Obj *Jim_GetGlobalVariableStr(Jim_Interp *interp, const char *name,
3341 Jim_CallFrame *savedFramePtr;
3344 savedFramePtr = interp->framePtr;
3345 interp->framePtr = interp->topFramePtr;
3346 objPtr = Jim_GetVariableStr(interp, name, flags);
3347 interp->framePtr = savedFramePtr;
3352 /* Unset a variable.
3353 * Note: On success unset invalidates all the variable objects created
3354 * in the current call frame incrementing. */
3355 int Jim_UnsetVariable(Jim_Interp *interp, Jim_Obj *nameObjPtr, int flags)
3361 if ((err = SetVariableFromAny(interp, nameObjPtr)) != JIM_OK) {
3362 /* Check for [dict] syntax sugar. */
3363 if (err == JIM_DICT_SUGAR)
3364 return JimDictSugarSet(interp, nameObjPtr, NULL);
3365 Jim_SetResult(interp, Jim_NewEmptyStringObj(interp));
3366 Jim_AppendStrings(interp, Jim_GetResult(interp),
3367 "can't unset \"", nameObjPtr->bytes,
3368 "\": no such variable", NULL);
3369 return JIM_ERR; /* var not found */
3371 varPtr = nameObjPtr->internalRep.varValue.varPtr;
3372 /* If it's a link call UnsetVariable recursively */
3373 if (varPtr->linkFramePtr) {
3376 Jim_CallFrame *savedCallFrame;
3378 savedCallFrame = interp->framePtr;
3379 interp->framePtr = varPtr->linkFramePtr;
3380 retval = Jim_UnsetVariable(interp, varPtr->objPtr, JIM_NONE);
3381 interp->framePtr = savedCallFrame;
3382 if (retval != JIM_OK && flags & JIM_ERRMSG) {
3383 Jim_SetResult(interp, Jim_NewEmptyStringObj(interp));
3384 Jim_AppendStrings(interp, Jim_GetResult(interp),
3385 "can't unset \"", nameObjPtr->bytes,
3386 "\": no such variable", NULL);
3390 name = Jim_GetString(nameObjPtr, NULL);
3391 if (Jim_DeleteHashEntry(&interp->framePtr->vars, name)
3392 != JIM_OK) return JIM_ERR;
3393 /* Change the callframe id, invalidating var lookup caching */
3394 JimChangeCallFrameId(interp, interp->framePtr);
3399 /* ---------- Dict syntax sugar (similar to array Tcl syntax) -------------- */
3401 /* Given a variable name for [dict] operation syntax sugar,
3402 * this function returns two objects, the first with the name
3403 * of the variable to set, and the second with the rispective key.
3404 * For example "foo(bar)" will return objects with string repr. of
3407 * The returned objects have refcount = 1. The function can't fail. */
3408 static void JimDictSugarParseVarKey(Jim_Interp *interp, Jim_Obj *objPtr,
3409 Jim_Obj **varPtrPtr, Jim_Obj **keyPtrPtr)
3411 const char *str, *p;
3413 int len, keyLen, nameLen;
3414 Jim_Obj *varObjPtr, *keyObjPtr;
3416 str = Jim_GetString(objPtr, &len);
3417 p = strchr(str, '(');
3419 keyLen = len-((p-str)+1);
3420 nameLen = (p-str)-1;
3421 /* Create the objects with the variable name and key. */
3422 t = Jim_Alloc(nameLen+1);
3423 memcpy(t, str, nameLen);
3425 varObjPtr = Jim_NewStringObjNoAlloc(interp, t, nameLen);
3427 t = Jim_Alloc(keyLen+1);
3428 memcpy(t, p, keyLen);
3430 keyObjPtr = Jim_NewStringObjNoAlloc(interp, t, keyLen);
3432 Jim_IncrRefCount(varObjPtr);
3433 Jim_IncrRefCount(keyObjPtr);
3434 *varPtrPtr = varObjPtr;
3435 *keyPtrPtr = keyObjPtr;
3438 /* Helper of Jim_SetVariable() to deal with dict-syntax variable names.
3439 * Also used by Jim_UnsetVariable() with valObjPtr = NULL. */
3440 static int JimDictSugarSet(Jim_Interp *interp, Jim_Obj *objPtr,
3443 Jim_Obj *varObjPtr, *keyObjPtr;
3446 JimDictSugarParseVarKey(interp, objPtr, &varObjPtr, &keyObjPtr);
3447 err = Jim_SetDictKeysVector(interp, varObjPtr, &keyObjPtr, 1,
3449 Jim_DecrRefCount(interp, varObjPtr);
3450 Jim_DecrRefCount(interp, keyObjPtr);
3454 /* Helper of Jim_GetVariable() to deal with dict-syntax variable names */
3455 static Jim_Obj *JimDictSugarGet(Jim_Interp *interp, Jim_Obj *objPtr)
3457 Jim_Obj *varObjPtr, *keyObjPtr, *dictObjPtr, *resObjPtr;
3459 JimDictSugarParseVarKey(interp, objPtr, &varObjPtr, &keyObjPtr);
3460 dictObjPtr = Jim_GetVariable(interp, varObjPtr, JIM_ERRMSG);
3465 if (Jim_DictKey(interp, dictObjPtr, keyObjPtr, &resObjPtr, JIM_ERRMSG)
3470 Jim_DecrRefCount(interp, varObjPtr);
3471 Jim_DecrRefCount(interp, keyObjPtr);
3475 /* --------- $var(INDEX) substitution, using a specialized object ----------- */
3477 static void FreeDictSubstInternalRep(Jim_Interp *interp, Jim_Obj *objPtr);
3478 static void DupDictSubstInternalRep(Jim_Interp *interp, Jim_Obj *srcPtr,
3481 static Jim_ObjType dictSubstObjType = {
3482 "dict-substitution",
3483 FreeDictSubstInternalRep,
3484 DupDictSubstInternalRep,
3489 void FreeDictSubstInternalRep(Jim_Interp *interp, Jim_Obj *objPtr)
3491 Jim_DecrRefCount(interp, objPtr->internalRep.dictSubstValue.varNameObjPtr);
3492 Jim_DecrRefCount(interp, objPtr->internalRep.dictSubstValue.indexObjPtr);
3495 void DupDictSubstInternalRep(Jim_Interp *interp, Jim_Obj *srcPtr,
3498 JIM_NOTUSED(interp);
3500 dupPtr->internalRep.dictSubstValue.varNameObjPtr =
3501 srcPtr->internalRep.dictSubstValue.varNameObjPtr;
3502 dupPtr->internalRep.dictSubstValue.indexObjPtr =
3503 srcPtr->internalRep.dictSubstValue.indexObjPtr;
3504 dupPtr->typePtr = &dictSubstObjType;
3507 /* This function is used to expand [dict get] sugar in the form
3508 * of $var(INDEX). The function is mainly used by Jim_EvalObj()
3509 * to deal with tokens of type JIM_TT_DICTSUGAR. objPtr points to an
3510 * object that is *guaranteed* to be in the form VARNAME(INDEX).
3511 * The 'index' part is [subst]ituted, and is used to lookup a key inside
3512 * the [dict]ionary contained in variable VARNAME. */
3513 Jim_Obj *Jim_ExpandDictSugar(Jim_Interp *interp, Jim_Obj *objPtr)
3515 Jim_Obj *varObjPtr, *keyObjPtr, *dictObjPtr, *resObjPtr;
3516 Jim_Obj *substKeyObjPtr = NULL;
3518 if (objPtr->typePtr != &dictSubstObjType) {
3519 JimDictSugarParseVarKey(interp, objPtr, &varObjPtr, &keyObjPtr);
3520 Jim_FreeIntRep(interp, objPtr);
3521 objPtr->typePtr = &dictSubstObjType;
3522 objPtr->internalRep.dictSubstValue.varNameObjPtr = varObjPtr;
3523 objPtr->internalRep.dictSubstValue.indexObjPtr = keyObjPtr;
3525 if (Jim_SubstObj(interp, objPtr->internalRep.dictSubstValue.indexObjPtr,
3526 &substKeyObjPtr, JIM_NONE)
3528 substKeyObjPtr = NULL;
3531 Jim_IncrRefCount(substKeyObjPtr);
3532 dictObjPtr = Jim_GetVariable(interp,
3533 objPtr->internalRep.dictSubstValue.varNameObjPtr, JIM_ERRMSG);
3538 if (Jim_DictKey(interp, dictObjPtr, substKeyObjPtr, &resObjPtr, JIM_ERRMSG)
3544 if (substKeyObjPtr) Jim_DecrRefCount(interp, substKeyObjPtr);
3548 /* -----------------------------------------------------------------------------
3550 * ---------------------------------------------------------------------------*/
3552 static Jim_CallFrame *JimCreateCallFrame(Jim_Interp *interp)
3555 if (interp->freeFramesList) {
3556 cf = interp->freeFramesList;
3557 interp->freeFramesList = cf->nextFramePtr;
3559 cf = Jim_Alloc(sizeof(*cf));
3560 cf->vars.table = NULL;
3563 cf->id = interp->callFrameEpoch++;
3564 cf->parentCallFrame = NULL;
3567 cf->procArgsObjPtr = NULL;
3568 cf->procBodyObjPtr = NULL;
3569 cf->nextFramePtr = NULL;
3570 cf->staticVars = NULL;
3571 if (cf->vars.table == NULL)
3572 Jim_InitHashTable(&cf->vars, &JimVariablesHashTableType, interp);
3576 /* Used to invalidate every caching related to callframe stability. */
3577 static void JimChangeCallFrameId(Jim_Interp *interp, Jim_CallFrame *cf)
3579 cf->id = interp->callFrameEpoch++;
3582 #define JIM_FCF_NONE 0 /* no flags */
3583 #define JIM_FCF_NOHT 1 /* don't free the hash table */
3584 static void JimFreeCallFrame(Jim_Interp *interp, Jim_CallFrame *cf,
3587 if (cf->procArgsObjPtr) Jim_DecrRefCount(interp, cf->procArgsObjPtr);
3588 if (cf->procBodyObjPtr) Jim_DecrRefCount(interp, cf->procBodyObjPtr);
3589 if (!(flags & JIM_FCF_NOHT))
3590 Jim_FreeHashTable(&cf->vars);
3593 Jim_HashEntry **table = cf->vars.table, *he;
3595 for (i = 0; i < JIM_HT_INITIAL_SIZE; i++) {
3597 while (he != NULL) {
3598 Jim_HashEntry *nextEntry = he->next;
3599 Jim_Var *varPtr = (void*) he->val;
3601 Jim_DecrRefCount(interp, varPtr->objPtr);
3603 Jim_Free((void*)he->key); /* ATTENTION: const cast */
3611 cf->nextFramePtr = interp->freeFramesList;
3612 interp->freeFramesList = cf;
3615 /* -----------------------------------------------------------------------------
3617 * ---------------------------------------------------------------------------*/
3619 /* References HashTable Type.
3621 * Keys are jim_wide integers, dynamically allocated for now but in the
3622 * future it's worth to cache this 8 bytes objects. Values are poitners
3623 * to Jim_References. */
3624 static void JimReferencesHTValDestructor(void *interp, void *val)
3626 Jim_Reference *refPtr = (void*) val;
3628 Jim_DecrRefCount(interp, refPtr->objPtr);
3629 if (refPtr->finalizerCmdNamePtr != NULL) {
3630 Jim_DecrRefCount(interp, refPtr->finalizerCmdNamePtr);
3635 unsigned int JimReferencesHTHashFunction(const void *key)
3637 /* Only the least significant bits are used. */
3638 const jim_wide *widePtr = key;
3639 unsigned int intValue = (unsigned int) *widePtr;
3640 return Jim_IntHashFunction(intValue);
3643 unsigned int JimReferencesHTDoubleHashFunction(const void *key)
3645 /* Only the least significant bits are used. */
3646 const jim_wide *widePtr = key;
3647 unsigned int intValue = (unsigned int) *widePtr;
3648 return intValue; /* identity function. */
3651 const void *JimReferencesHTKeyDup(void *privdata, const void *key)
3653 void *copy = Jim_Alloc(sizeof(jim_wide));
3654 JIM_NOTUSED(privdata);
3656 memcpy(copy, key, sizeof(jim_wide));
3660 int JimReferencesHTKeyCompare(void *privdata, const void *key1,
3663 JIM_NOTUSED(privdata);
3665 return memcmp(key1, key2, sizeof(jim_wide)) == 0;
3668 void JimReferencesHTKeyDestructor(void *privdata, const void *key)
3670 JIM_NOTUSED(privdata);
3672 Jim_Free((void*)key);
3675 static Jim_HashTableType JimReferencesHashTableType = {
3676 JimReferencesHTHashFunction, /* hash function */
3677 JimReferencesHTKeyDup, /* key dup */
3679 JimReferencesHTKeyCompare, /* key compare */
3680 JimReferencesHTKeyDestructor, /* key destructor */
3681 JimReferencesHTValDestructor /* val destructor */
3684 /* -----------------------------------------------------------------------------
3685 * Reference object type and References API
3686 * ---------------------------------------------------------------------------*/
3688 static void UpdateStringOfReference(struct Jim_Obj *objPtr);
3690 static Jim_ObjType referenceObjType = {
3694 UpdateStringOfReference,
3695 JIM_TYPE_REFERENCES,
3698 void UpdateStringOfReference(struct Jim_Obj *objPtr)
3701 char buf[JIM_REFERENCE_SPACE+1];
3702 Jim_Reference *refPtr;
3704 refPtr = objPtr->internalRep.refValue.refPtr;
3705 len = JimFormatReference(buf, refPtr, objPtr->internalRep.refValue.id);
3706 objPtr->bytes = Jim_Alloc(len+1);
3707 memcpy(objPtr->bytes, buf, len+1);
3708 objPtr->length = len;
3711 /* returns true if 'c' is a valid reference tag character.
3712 * i.e. inside the range [_a-zA-Z0-9] */
3713 static int isrefchar(int c)
3715 if (c == '_' || (c >= 'a' && c <= 'z') || (c >= 'A' && c <= 'Z') ||
3716 (c >= '0' && c <= '9')) return 1;
3720 int SetReferenceFromAny(Jim_Interp *interp, Jim_Obj *objPtr)
3724 const char *str, *start, *end;
3726 Jim_Reference *refPtr;
3729 /* Get the string representation */
3730 str = Jim_GetString(objPtr, &len);
3731 /* Check if it looks like a reference */
3732 if (len < JIM_REFERENCE_SPACE) goto badformat;
3736 while (*start == ' ') start++;
3737 while (*end == ' ' && end > start) end--;
3738 if (end-start+1 != JIM_REFERENCE_SPACE) goto badformat;
3739 /* <reference.<1234567>.%020> */
3740 if (memcmp(start, "<reference.<", 12) != 0) goto badformat;
3741 if (start[12+JIM_REFERENCE_TAGLEN] != '>' || end[0] != '>') goto badformat;
3742 /* The tag can't contain chars other than a-zA-Z0-9 + '_'. */
3743 for (i = 0; i < JIM_REFERENCE_TAGLEN; i++) {
3744 if (!isrefchar(start[12+i])) goto badformat;
3746 /* Extract info from the refernece. */
3747 memcpy(refId, start+14+JIM_REFERENCE_TAGLEN, 20);
3749 /* Try to convert the ID into a jim_wide */
3750 if (Jim_StringToWide(refId, &wideValue, 10) != JIM_OK) goto badformat;
3751 /* Check if the reference really exists! */
3752 he = Jim_FindHashEntry(&interp->references, &wideValue);
3754 Jim_SetResult(interp, Jim_NewEmptyStringObj(interp));
3755 Jim_AppendStrings(interp, Jim_GetResult(interp),
3756 "Invalid reference ID \"", str, "\"", NULL);
3760 /* Free the old internal repr and set the new one. */
3761 Jim_FreeIntRep(interp, objPtr);
3762 objPtr->typePtr = &referenceObjType;
3763 objPtr->internalRep.refValue.id = wideValue;
3764 objPtr->internalRep.refValue.refPtr = refPtr;
3768 Jim_SetResult(interp, Jim_NewEmptyStringObj(interp));
3769 Jim_AppendStrings(interp, Jim_GetResult(interp),
3770 "expected reference but got \"", str, "\"", NULL);
3774 /* Returns a new reference pointing to objPtr, having cmdNamePtr
3775 * as finalizer command (or NULL if there is no finalizer).
3776 * The returned reference object has refcount = 0. */
3777 Jim_Obj *Jim_NewReference(Jim_Interp *interp, Jim_Obj *objPtr, Jim_Obj *tagPtr,
3778 Jim_Obj *cmdNamePtr)
3780 struct Jim_Reference *refPtr;
3781 jim_wide wideValue = interp->referenceNextId;
3786 /* Perform the Garbage Collection if needed. */
3787 Jim_CollectIfNeeded(interp);
3789 refPtr = Jim_Alloc(sizeof(*refPtr));
3790 refPtr->objPtr = objPtr;
3791 Jim_IncrRefCount(objPtr);
3792 refPtr->finalizerCmdNamePtr = cmdNamePtr;
3794 Jim_IncrRefCount(cmdNamePtr);
3795 Jim_AddHashEntry(&interp->references, &wideValue, refPtr);
3796 refObjPtr = Jim_NewObj(interp);
3797 refObjPtr->typePtr = &referenceObjType;
3798 refObjPtr->bytes = NULL;
3799 refObjPtr->internalRep.refValue.id = interp->referenceNextId;
3800 refObjPtr->internalRep.refValue.refPtr = refPtr;
3801 interp->referenceNextId++;
3802 /* Set the tag. Trimmered at JIM_REFERENCE_TAGLEN. Everything
3803 * that does not pass the 'isrefchar' test is replaced with '_' */
3804 tag = Jim_GetString(tagPtr, &tagLen);
3805 if (tagLen > JIM_REFERENCE_TAGLEN)
3806 tagLen = JIM_REFERENCE_TAGLEN;
3807 for (i = 0; i < JIM_REFERENCE_TAGLEN; i++) {
3809 refPtr->tag[i] = tag[i];
3811 refPtr->tag[i] = '_';
3813 refPtr->tag[JIM_REFERENCE_TAGLEN] = '\0';
3817 Jim_Reference *Jim_GetReference(Jim_Interp *interp, Jim_Obj *objPtr)
3819 if (objPtr->typePtr != &referenceObjType &&
3820 SetReferenceFromAny(interp, objPtr) == JIM_ERR)
3822 return objPtr->internalRep.refValue.refPtr;
3825 int Jim_SetFinalizer(Jim_Interp *interp, Jim_Obj *objPtr, Jim_Obj *cmdNamePtr)
3827 Jim_Reference *refPtr;
3829 if ((refPtr = Jim_GetReference(interp, objPtr)) == NULL)
3831 Jim_IncrRefCount(cmdNamePtr);
3832 if (refPtr->finalizerCmdNamePtr)
3833 Jim_DecrRefCount(interp, refPtr->finalizerCmdNamePtr);
3834 refPtr->finalizerCmdNamePtr = cmdNamePtr;
3838 int Jim_GetFinalizer(Jim_Interp *interp, Jim_Obj *objPtr, Jim_Obj **cmdNamePtrPtr)
3840 Jim_Reference *refPtr;
3842 if ((refPtr = Jim_GetReference(interp, objPtr)) == NULL)
3844 *cmdNamePtrPtr = refPtr->finalizerCmdNamePtr;
3848 /* -----------------------------------------------------------------------------
3849 * References Garbage Collection
3850 * ---------------------------------------------------------------------------*/
3852 /* This the hash table type for the "MARK" phase of the GC */
3853 static Jim_HashTableType JimRefMarkHashTableType = {
3854 JimReferencesHTHashFunction, /* hash function */
3855 JimReferencesHTKeyDup, /* key dup */
3857 JimReferencesHTKeyCompare, /* key compare */
3858 JimReferencesHTKeyDestructor, /* key destructor */
3859 NULL /* val destructor */
3862 /* #define JIM_DEBUG_GC 1 */
3864 /* Performs the garbage collection. */
3865 int Jim_Collect(Jim_Interp *interp)
3867 Jim_HashTable marks;
3868 Jim_HashTableIterator *htiter;
3873 /* Avoid recursive calls */
3874 if (interp->lastCollectId == -1) {
3875 /* Jim_Collect() already running. Return just now. */
3878 interp->lastCollectId = -1;
3880 /* Mark all the references found into the 'mark' hash table.
3881 * The references are searched in every live object that
3882 * is of a type that can contain references. */
3883 Jim_InitHashTable(&marks, &JimRefMarkHashTableType, NULL);
3884 objPtr = interp->liveList;
3886 if (objPtr->typePtr == NULL ||
3887 objPtr->typePtr->flags & JIM_TYPE_REFERENCES) {
3888 const char *str, *p;
3891 /* If the object is of type reference, to get the
3892 * Id is simple... */
3893 if (objPtr->typePtr == &referenceObjType) {
3894 Jim_AddHashEntry(&marks,
3895 &objPtr->internalRep.refValue.id, NULL);
3897 fprintf(interp->stdout,
3898 "MARK (reference): %d refcount: %d" JIM_NL,
3899 (int) objPtr->internalRep.refValue.id,
3902 objPtr = objPtr->nextObjPtr;
3905 /* Get the string repr of the object we want
3906 * to scan for references. */
3907 p = str = Jim_GetString(objPtr, &len);
3908 /* Skip objects too little to contain references. */
3909 if (len < JIM_REFERENCE_SPACE) {
3910 objPtr = objPtr->nextObjPtr;
3913 /* Extract references from the object string repr. */
3919 if ((p = strstr(p, "<reference.<")) == NULL)
3921 /* Check if it's a valid reference. */
3922 if (len-(p-str) < JIM_REFERENCE_SPACE) break;
3923 if (p[41] != '>' || p[19] != '>' || p[20] != '.') break;
3924 for (i = 21; i <= 40; i++)
3925 if (!isdigit((int)p[i]))
3928 memcpy(buf, p+21, 20);
3930 Jim_StringToWide(buf, &id, 10);
3932 /* Ok, a reference for the given ID
3933 * was found. Mark it. */
3934 Jim_AddHashEntry(&marks, &id, NULL);
3936 fprintf(interp->stdout,"MARK: %d" JIM_NL, (int)id);
3938 p += JIM_REFERENCE_SPACE;
3941 objPtr = objPtr->nextObjPtr;
3944 /* Run the references hash table to destroy every reference that
3945 * is not referenced outside (not present in the mark HT). */
3946 htiter = Jim_GetHashTableIterator(&interp->references);
3947 while ((he = Jim_NextHashEntry(htiter)) != NULL) {
3948 const jim_wide *refId;
3949 Jim_Reference *refPtr;
3952 /* Check if in the mark phase we encountered
3953 * this reference. */
3954 if (Jim_FindHashEntry(&marks, refId) == NULL) {
3956 fprintf(interp->stdout,"COLLECTING %d" JIM_NL, (int)*refId);
3959 /* Drop the reference, but call the
3960 * finalizer first if registered. */
3962 if (refPtr->finalizerCmdNamePtr) {
3963 char *refstr = Jim_Alloc(JIM_REFERENCE_SPACE+1);
3964 Jim_Obj *objv[3], *oldResult;
3966 JimFormatReference(refstr, refPtr, *refId);
3968 objv[0] = refPtr->finalizerCmdNamePtr;
3969 objv[1] = Jim_NewStringObjNoAlloc(interp,
3971 objv[2] = refPtr->objPtr;
3972 Jim_IncrRefCount(objv[0]);
3973 Jim_IncrRefCount(objv[1]);
3974 Jim_IncrRefCount(objv[2]);
3976 /* Drop the reference itself */
3977 Jim_DeleteHashEntry(&interp->references, refId);
3979 /* Call the finalizer. Errors ignored. */
3980 oldResult = interp->result;
3981 Jim_IncrRefCount(oldResult);
3982 Jim_EvalObjVector(interp, 3, objv);
3983 Jim_SetResult(interp, oldResult);
3984 Jim_DecrRefCount(interp, oldResult);
3986 Jim_DecrRefCount(interp, objv[0]);
3987 Jim_DecrRefCount(interp, objv[1]);
3988 Jim_DecrRefCount(interp, objv[2]);
3990 Jim_DeleteHashEntry(&interp->references, refId);
3994 Jim_FreeHashTableIterator(htiter);
3995 Jim_FreeHashTable(&marks);
3996 interp->lastCollectId = interp->referenceNextId;
3997 interp->lastCollectTime = time(NULL);
4001 #define JIM_COLLECT_ID_PERIOD 5000
4002 #define JIM_COLLECT_TIME_PERIOD 300
4004 void Jim_CollectIfNeeded(Jim_Interp *interp)
4009 elapsedId = interp->referenceNextId - interp->lastCollectId;
4010 elapsedTime = time(NULL) - interp->lastCollectTime;
4013 if (elapsedId > JIM_COLLECT_ID_PERIOD ||
4014 elapsedTime > JIM_COLLECT_TIME_PERIOD) {
4015 Jim_Collect(interp);
4019 /* -----------------------------------------------------------------------------
4020 * Interpreter related functions
4021 * ---------------------------------------------------------------------------*/
4023 Jim_Interp *Jim_CreateInterp(void)
4025 Jim_Interp *i = Jim_Alloc(sizeof(*i));
4029 i->errorFileName = Jim_StrDup("");
4031 i->maxNestingDepth = JIM_MAX_NESTING_DEPTH;
4032 i->returnCode = JIM_OK;
4035 i->callFrameEpoch = 0;
4036 i->liveList = i->freeList = NULL;
4037 i->scriptFileName = Jim_StrDup("");
4038 i->referenceNextId = 0;
4039 i->lastCollectId = 0;
4040 i->lastCollectTime = time(NULL);
4041 i->freeFramesList = NULL;
4042 i->prngState = NULL;
4043 i->evalRetcodeLevel = -1;
4048 /* Note that we can create objects only after the
4049 * interpreter liveList and freeList pointers are
4050 * initialized to NULL. */
4051 Jim_InitHashTable(&i->commands, &JimCommandsHashTableType, i);
4052 Jim_InitHashTable(&i->references, &JimReferencesHashTableType, i);
4053 Jim_InitHashTable(&i->sharedStrings, &JimSharedStringsHashTableType,
4055 Jim_InitHashTable(&i->stub, &JimStringCopyHashTableType, NULL);
4056 Jim_InitHashTable(&i->assocData, &JimAssocDataHashTableType, i);
4057 Jim_InitHashTable(&i->packages, &JimStringKeyValCopyHashTableType, NULL);
4058 i->framePtr = i->topFramePtr = JimCreateCallFrame(i);
4059 i->emptyObj = Jim_NewEmptyStringObj(i);
4060 i->result = i->emptyObj;
4061 i->stackTrace = Jim_NewListObj(i, NULL, 0);
4062 i->unknown = Jim_NewStringObj(i, "unknown", -1);
4063 Jim_IncrRefCount(i->emptyObj);
4064 Jim_IncrRefCount(i->result);
4065 Jim_IncrRefCount(i->stackTrace);
4066 Jim_IncrRefCount(i->unknown);
4068 /* Initialize key variables every interpreter should contain */
4069 pathPtr = Jim_NewStringObj(i, "./", -1);
4070 Jim_SetVariableStr(i, "jim_libpath", pathPtr);
4071 Jim_SetVariableStrWithStr(i, "jim_interactive", "0");
4073 /* Export the core API to extensions */
4074 JimRegisterCoreApi(i);
4078 /* This is the only function Jim exports directly without
4079 * to use the STUB system. It is only used by embedders
4080 * in order to get an interpreter with the Jim API pointers
4082 Jim_Interp *ExportedJimCreateInterp(void)
4084 return Jim_CreateInterp();
4087 void Jim_FreeInterp(Jim_Interp *i)
4089 Jim_CallFrame *cf = i->framePtr, *prevcf, *nextcf;
4090 Jim_Obj *objPtr, *nextObjPtr;
4092 Jim_DecrRefCount(i, i->emptyObj);
4093 Jim_DecrRefCount(i, i->result);
4094 Jim_DecrRefCount(i, i->stackTrace);
4095 Jim_DecrRefCount(i, i->unknown);
4096 Jim_Free((void*)i->errorFileName);
4097 Jim_Free((void*)i->scriptFileName);
4098 Jim_FreeHashTable(&i->commands);
4099 Jim_FreeHashTable(&i->references);
4100 Jim_FreeHashTable(&i->stub);
4101 Jim_FreeHashTable(&i->assocData);
4102 Jim_FreeHashTable(&i->packages);
4103 Jim_Free(i->prngState);
4104 /* Free the call frames list */
4106 prevcf = cf->parentCallFrame;
4107 JimFreeCallFrame(i, cf, JIM_FCF_NONE);
4110 /* Check that the live object list is empty, otherwise
4111 * there is a memory leak. */
4112 if (i->liveList != NULL) {
4113 Jim_Obj *objPtr = i->liveList;
4115 fprintf(i->stdout,JIM_NL "-------------------------------------" JIM_NL);
4116 fprintf(i->stdout,"Objects still in the free list:" JIM_NL);
4118 const char *type = objPtr->typePtr ?
4119 objPtr->typePtr->name : "";
4120 fprintf(i->stdout,"%p \"%-10s\": '%.20s' (refCount: %d)" JIM_NL,
4122 objPtr->bytes ? objPtr->bytes
4123 : "(null)", objPtr->refCount);
4124 if (objPtr->typePtr == &sourceObjType) {
4125 fprintf(i->stdout, "FILE %s LINE %d" JIM_NL,
4126 objPtr->internalRep.sourceValue.fileName,
4127 objPtr->internalRep.sourceValue.lineNumber);
4129 objPtr = objPtr->nextObjPtr;
4131 fprintf(stdout, "-------------------------------------" JIM_NL JIM_NL);
4132 Jim_Panic(i,"Live list non empty freeing the interpreter! Leak?");
4134 /* Free all the freed objects. */
4135 objPtr = i->freeList;
4137 nextObjPtr = objPtr->nextObjPtr;
4139 objPtr = nextObjPtr;
4141 /* Free cached CallFrame structures */
4142 cf = i->freeFramesList;
4144 nextcf = cf->nextFramePtr;
4145 if (cf->vars.table != NULL)
4146 Jim_Free(cf->vars.table);
4150 /* Free the sharedString hash table. Make sure to free it
4151 * after every other Jim_Object was freed. */
4152 Jim_FreeHashTable(&i->sharedStrings);
4153 /* Free the interpreter structure. */
4157 /* Store the call frame relative to the level represented by
4158 * levelObjPtr into *framePtrPtr. If levelObjPtr == NULL, the
4159 * level is assumed to be '1'.
4161 * If a newLevelptr int pointer is specified, the function stores
4162 * the absolute level integer value of the new target callframe into
4163 * *newLevelPtr. (this is used to adjust interp->numLevels
4164 * in the implementation of [uplevel], so that [info level] will
4165 * return a correct information).
4167 * This function accepts the 'level' argument in the form
4168 * of the commands [uplevel] and [upvar].
4170 * For a function accepting a relative integer as level suitable
4171 * for implementation of [info level ?level?] check the
4172 * GetCallFrameByInteger() function. */
4173 int Jim_GetCallFrameByLevel(Jim_Interp *interp, Jim_Obj *levelObjPtr,
4174 Jim_CallFrame **framePtrPtr, int *newLevelPtr)
4178 Jim_CallFrame *framePtr;
4180 if (newLevelPtr) *newLevelPtr = interp->numLevels;
4182 str = Jim_GetString(levelObjPtr, NULL);
4183 if (str[0] == '#') {
4185 /* speedup for the toplevel (level #0) */
4186 if (str[1] == '0' && str[2] == '\0') {
4187 if (newLevelPtr) *newLevelPtr = 0;
4188 *framePtrPtr = interp->topFramePtr;
4192 level = strtol(str+1, &endptr, 0);
4193 if (str[1] == '\0' || endptr[0] != '\0' || level < 0)
4195 /* An 'absolute' level is converted into the
4196 * 'number of levels to go back' format. */
4197 level = interp->numLevels - level;
4198 if (level < 0) goto badlevel;
4200 if (Jim_GetLong(interp, levelObjPtr, &level) != JIM_OK || level < 0)
4204 str = "1"; /* Needed to format the error message. */
4208 framePtr = interp->framePtr;
4209 if (newLevelPtr) *newLevelPtr = (*newLevelPtr)-level;
4211 framePtr = framePtr->parentCallFrame;
4212 if (framePtr == NULL) goto badlevel;
4214 *framePtrPtr = framePtr;
4217 Jim_SetResult(interp, Jim_NewEmptyStringObj(interp));
4218 Jim_AppendStrings(interp, Jim_GetResult(interp),
4219 "bad level \"", str, "\"", NULL);
4223 /* Similar to Jim_GetCallFrameByLevel() but the level is specified
4224 * as a relative integer like in the [info level ?level?] command. */
4225 static int JimGetCallFrameByInteger(Jim_Interp *interp, Jim_Obj *levelObjPtr,
4226 Jim_CallFrame **framePtrPtr)
4229 jim_wide relLevel; /* level relative to the current one. */
4230 Jim_CallFrame *framePtr;
4232 if (Jim_GetWide(interp, levelObjPtr, &level) != JIM_OK)
4235 /* An 'absolute' level is converted into the
4236 * 'number of levels to go back' format. */
4237 relLevel = interp->numLevels - level;
4242 framePtr = interp->framePtr;
4243 while (relLevel--) {
4244 framePtr = framePtr->parentCallFrame;
4245 if (framePtr == NULL) goto badlevel;
4247 *framePtrPtr = framePtr;
4250 Jim_SetResult(interp, Jim_NewEmptyStringObj(interp));
4251 Jim_AppendStrings(interp, Jim_GetResult(interp),
4252 "bad level \"", Jim_GetString(levelObjPtr, NULL), "\"", NULL);
4256 static void JimSetErrorFileName(Jim_Interp *interp, char *filename)
4258 Jim_Free((void*)interp->errorFileName);
4259 interp->errorFileName = Jim_StrDup(filename);
4262 static void JimSetErrorLineNumber(Jim_Interp *interp, int linenr)
4264 interp->errorLine = linenr;
4267 static void JimResetStackTrace(Jim_Interp *interp)
4269 Jim_DecrRefCount(interp, interp->stackTrace);
4270 interp->stackTrace = Jim_NewListObj(interp, NULL, 0);
4271 Jim_IncrRefCount(interp->stackTrace);
4274 static void JimAppendStackTrace(Jim_Interp *interp, const char *procname,
4275 const char *filename, int linenr)
4277 if (Jim_IsShared(interp->stackTrace)) {
4278 interp->stackTrace =
4279 Jim_DuplicateObj(interp, interp->stackTrace);
4280 Jim_IncrRefCount(interp->stackTrace);
4282 Jim_ListAppendElement(interp, interp->stackTrace,
4283 Jim_NewStringObj(interp, procname, -1));
4284 Jim_ListAppendElement(interp, interp->stackTrace,
4285 Jim_NewStringObj(interp, filename, -1));
4286 Jim_ListAppendElement(interp, interp->stackTrace,
4287 Jim_NewIntObj(interp, linenr));
4290 int Jim_SetAssocData(Jim_Interp *interp, const char *key, Jim_InterpDeleteProc *delProc, void *data)
4292 AssocDataValue *assocEntryPtr = (AssocDataValue *)Jim_Alloc(sizeof(AssocDataValue));
4293 assocEntryPtr->delProc = delProc;
4294 assocEntryPtr->data = data;
4295 return Jim_AddHashEntry(&interp->assocData, key, assocEntryPtr);
4298 void *Jim_GetAssocData(Jim_Interp *interp, const char *key)
4300 Jim_HashEntry *entryPtr = Jim_FindHashEntry(&interp->assocData, key);
4301 if (entryPtr != NULL) {
4302 AssocDataValue *assocEntryPtr = (AssocDataValue *)entryPtr->val;
4303 return assocEntryPtr->data;
4308 int Jim_DeleteAssocData(Jim_Interp *interp, const char *key)
4310 return Jim_DeleteHashEntry(&interp->assocData, key);
4313 int Jim_GetExitCode(Jim_Interp *interp) {
4314 return interp->exitCode;
4317 FILE *Jim_SetStdin(Jim_Interp *interp, FILE *fp)
4319 if (fp != NULL) interp->stdin = fp;
4320 return interp->stdin;
4323 FILE *Jim_SetStdout(Jim_Interp *interp, FILE *fp)
4325 if (fp != NULL) interp->stdout = fp;
4326 return interp->stdout;
4329 FILE *Jim_SetStderr(Jim_Interp *interp, FILE *fp)
4331 if (fp != NULL) interp->stderr = fp;
4332 return interp->stderr;
4335 /* -----------------------------------------------------------------------------
4337 * Every interpreter has an hash table where to put shared dynamically
4338 * allocate strings that are likely to be used a lot of times.
4339 * For example, in the 'source' object type, there is a pointer to
4340 * the filename associated with that object. Every script has a lot
4341 * of this objects with the identical file name, so it is wise to share
4344 * The API is trivial: Jim_GetSharedString(interp, "foobar")
4345 * returns the pointer to the shared string. Every time a reference
4346 * to the string is no longer used, the user should call
4347 * Jim_ReleaseSharedString(interp, stringPointer). Once no one is using
4348 * a given string, it is removed from the hash table.
4349 * ---------------------------------------------------------------------------*/
4350 const char *Jim_GetSharedString(Jim_Interp *interp, const char *str)
4352 Jim_HashEntry *he = Jim_FindHashEntry(&interp->sharedStrings, str);
4355 char *strCopy = Jim_StrDup(str);
4357 Jim_AddHashEntry(&interp->sharedStrings, strCopy, (void*)1);
4360 long refCount = (long) he->val;
4363 he->val = (void*) refCount;
4368 void Jim_ReleaseSharedString(Jim_Interp *interp, const char *str)
4371 Jim_HashEntry *he = Jim_FindHashEntry(&interp->sharedStrings, str);
4374 Jim_Panic(interp,"Jim_ReleaseSharedString called with "
4375 "unknown shared string '%s'", str);
4376 refCount = (long) he->val;
4378 if (refCount == 0) {
4379 Jim_DeleteHashEntry(&interp->sharedStrings, str);
4381 he->val = (void*) refCount;
4385 /* -----------------------------------------------------------------------------
4387 * ---------------------------------------------------------------------------*/
4388 #define JIM_INTEGER_SPACE 24
4390 static void UpdateStringOfInt(struct Jim_Obj *objPtr);
4391 static int SetIntFromAny(Jim_Interp *interp, Jim_Obj *objPtr, int flags);
4393 static Jim_ObjType intObjType = {
4401 void UpdateStringOfInt(struct Jim_Obj *objPtr)
4404 char buf[JIM_INTEGER_SPACE+1];
4406 len = Jim_WideToString(buf, objPtr->internalRep.wideValue);
4407 objPtr->bytes = Jim_Alloc(len+1);
4408 memcpy(objPtr->bytes, buf, len+1);
4409 objPtr->length = len;
4412 int SetIntFromAny(Jim_Interp *interp, Jim_Obj *objPtr, int flags)
4417 /* Get the string representation */
4418 str = Jim_GetString(objPtr, NULL);
4419 /* Try to convert into a jim_wide */
4420 if (Jim_StringToWide(str, &wideValue, 0) != JIM_OK) {
4421 if (flags & JIM_ERRMSG) {
4422 Jim_SetResult(interp, Jim_NewEmptyStringObj(interp));
4423 Jim_AppendStrings(interp, Jim_GetResult(interp),
4424 "expected integer but got \"", str, "\"", NULL);
4428 if ((wideValue == JIM_WIDE_MIN || wideValue == JIM_WIDE_MAX) &&
4430 Jim_SetResultString(interp,
4431 "Integer value too big to be represented", -1);
4434 /* Free the old internal repr and set the new one. */
4435 Jim_FreeIntRep(interp, objPtr);
4436 objPtr->typePtr = &intObjType;
4437 objPtr->internalRep.wideValue = wideValue;
4441 int Jim_GetWide(Jim_Interp *interp, Jim_Obj *objPtr, jim_wide *widePtr)
4443 if (objPtr->typePtr != &intObjType &&
4444 SetIntFromAny(interp, objPtr, JIM_ERRMSG) == JIM_ERR)
4446 *widePtr = objPtr->internalRep.wideValue;
4450 /* Get a wide but does not set an error if the format is bad. */
4451 static int JimGetWideNoErr(Jim_Interp *interp, Jim_Obj *objPtr,
4454 if (objPtr->typePtr != &intObjType &&
4455 SetIntFromAny(interp, objPtr, JIM_NONE) == JIM_ERR)
4457 *widePtr = objPtr->internalRep.wideValue;
4461 int Jim_GetLong(Jim_Interp *interp, Jim_Obj *objPtr, long *longPtr)
4466 retval = Jim_GetWide(interp, objPtr, &wideValue);
4467 if (retval == JIM_OK) {
4468 *longPtr = (long) wideValue;
4474 void Jim_SetWide(Jim_Interp *interp, Jim_Obj *objPtr, jim_wide wideValue)
4476 if (Jim_IsShared(objPtr))
4477 Jim_Panic(interp,"Jim_SetWide called with shared object");
4478 if (objPtr->typePtr != &intObjType) {
4479 Jim_FreeIntRep(interp, objPtr);
4480 objPtr->typePtr = &intObjType;
4482 Jim_InvalidateStringRep(objPtr);
4483 objPtr->internalRep.wideValue = wideValue;
4486 Jim_Obj *Jim_NewIntObj(Jim_Interp *interp, jim_wide wideValue)
4490 objPtr = Jim_NewObj(interp);
4491 objPtr->typePtr = &intObjType;
4492 objPtr->bytes = NULL;
4493 objPtr->internalRep.wideValue = wideValue;
4497 /* -----------------------------------------------------------------------------
4499 * ---------------------------------------------------------------------------*/
4500 #define JIM_DOUBLE_SPACE 30
4502 static void UpdateStringOfDouble(struct Jim_Obj *objPtr);
4503 static int SetDoubleFromAny(Jim_Interp *interp, Jim_Obj *objPtr);
4505 static Jim_ObjType doubleObjType = {
4509 UpdateStringOfDouble,
4513 void UpdateStringOfDouble(struct Jim_Obj *objPtr)
4516 char buf[JIM_DOUBLE_SPACE+1];
4518 len = Jim_DoubleToString(buf, objPtr->internalRep.doubleValue);
4519 objPtr->bytes = Jim_Alloc(len+1);
4520 memcpy(objPtr->bytes, buf, len+1);
4521 objPtr->length = len;
4524 int SetDoubleFromAny(Jim_Interp *interp, Jim_Obj *objPtr)
4529 /* Get the string representation */
4530 str = Jim_GetString(objPtr, NULL);
4531 /* Try to convert into a double */
4532 if (Jim_StringToDouble(str, &doubleValue) != JIM_OK) {
4533 Jim_SetResult(interp, Jim_NewEmptyStringObj(interp));
4534 Jim_AppendStrings(interp, Jim_GetResult(interp),
4535 "expected number but got '", str, "'", NULL);
4538 /* Free the old internal repr and set the new one. */
4539 Jim_FreeIntRep(interp, objPtr);
4540 objPtr->typePtr = &doubleObjType;
4541 objPtr->internalRep.doubleValue = doubleValue;
4545 int Jim_GetDouble(Jim_Interp *interp, Jim_Obj *objPtr, double *doublePtr)
4547 if (objPtr->typePtr != &doubleObjType &&
4548 SetDoubleFromAny(interp, objPtr) == JIM_ERR)
4550 *doublePtr = objPtr->internalRep.doubleValue;
4554 void Jim_SetDouble(Jim_Interp *interp, Jim_Obj *objPtr, double doubleValue)
4556 if (Jim_IsShared(objPtr))
4557 Jim_Panic(interp,"Jim_SetDouble called with shared object");
4558 if (objPtr->typePtr != &doubleObjType) {
4559 Jim_FreeIntRep(interp, objPtr);
4560 objPtr->typePtr = &doubleObjType;
4562 Jim_InvalidateStringRep(objPtr);
4563 objPtr->internalRep.doubleValue = doubleValue;
4566 Jim_Obj *Jim_NewDoubleObj(Jim_Interp *interp, double doubleValue)
4570 objPtr = Jim_NewObj(interp);
4571 objPtr->typePtr = &doubleObjType;
4572 objPtr->bytes = NULL;
4573 objPtr->internalRep.doubleValue = doubleValue;
4577 /* -----------------------------------------------------------------------------
4579 * ---------------------------------------------------------------------------*/
4580 static void ListAppendElement(Jim_Obj *listPtr, Jim_Obj *objPtr);
4581 static void FreeListInternalRep(Jim_Interp *interp, Jim_Obj *objPtr);
4582 static void DupListInternalRep(Jim_Interp *interp, Jim_Obj *srcPtr, Jim_Obj *dupPtr);
4583 static void UpdateStringOfList(struct Jim_Obj *objPtr);
4584 static int SetListFromAny(Jim_Interp *interp, struct Jim_Obj *objPtr);
4586 /* Note that while the elements of the list may contain references,
4587 * the list object itself can't. This basically means that the
4588 * list object string representation as a whole can't contain references
4589 * that are not presents in the single elements. */
4590 static Jim_ObjType listObjType = {
4592 FreeListInternalRep,
4598 void FreeListInternalRep(Jim_Interp *interp, Jim_Obj *objPtr)
4602 for (i = 0; i < objPtr->internalRep.listValue.len; i++) {
4603 Jim_DecrRefCount(interp, objPtr->internalRep.listValue.ele[i]);
4605 Jim_Free(objPtr->internalRep.listValue.ele);
4608 void DupListInternalRep(Jim_Interp *interp, Jim_Obj *srcPtr, Jim_Obj *dupPtr)
4611 JIM_NOTUSED(interp);
4613 dupPtr->internalRep.listValue.len = srcPtr->internalRep.listValue.len;
4614 dupPtr->internalRep.listValue.maxLen = srcPtr->internalRep.listValue.maxLen;
4615 dupPtr->internalRep.listValue.ele =
4616 Jim_Alloc(sizeof(Jim_Obj*)*srcPtr->internalRep.listValue.maxLen);
4617 memcpy(dupPtr->internalRep.listValue.ele, srcPtr->internalRep.listValue.ele,
4618 sizeof(Jim_Obj*)*srcPtr->internalRep.listValue.len);
4619 for (i = 0; i < dupPtr->internalRep.listValue.len; i++) {
4620 Jim_IncrRefCount(dupPtr->internalRep.listValue.ele[i]);
4622 dupPtr->typePtr = &listObjType;
4625 /* The following function checks if a given string can be encoded
4626 * into a list element without any kind of quoting, surrounded by braces,
4627 * or using escapes to quote. */
4628 #define JIM_ELESTR_SIMPLE 0
4629 #define JIM_ELESTR_BRACE 1
4630 #define JIM_ELESTR_QUOTE 2
4631 static int ListElementQuotingType(const char *s, int len)
4633 int i, level, trySimple = 1;
4635 /* Try with the SIMPLE case */
4636 if (len == 0) return JIM_ELESTR_BRACE;
4637 if (s[0] == '"' || s[0] == '{') {
4641 for (i = 0; i < len; i++) {
4661 return JIM_ELESTR_SIMPLE;
4664 /* Test if it's possible to do with braces */
4665 if (s[len-1] == '\\' ||
4666 s[len-1] == ']') return JIM_ELESTR_QUOTE;
4668 for (i = 0; i < len; i++) {
4670 case '{': level++; break;
4672 if (level < 0) return JIM_ELESTR_QUOTE;
4676 return JIM_ELESTR_QUOTE;
4678 if (s[i+1] != '\0') i++;
4683 if (!trySimple) return JIM_ELESTR_BRACE;
4684 for (i = 0; i < len; i++) {
4698 return JIM_ELESTR_BRACE;
4702 return JIM_ELESTR_SIMPLE;
4704 return JIM_ELESTR_QUOTE;
4707 /* Returns the malloc-ed representation of a string
4708 * using backslash to quote special chars. */
4709 char *BackslashQuoteString(const char *s, int len, int *qlenPtr)
4711 char *q = Jim_Alloc(len*2+1), *p;
4728 case '\n': *p++ = '\\'; *p++ = 'n'; s++; break;
4729 case '\r': *p++ = '\\'; *p++ = 'r'; s++; break;
4730 case '\t': *p++ = '\\'; *p++ = 't'; s++; break;
4731 case '\f': *p++ = '\\'; *p++ = 'f'; s++; break;
4732 case '\v': *p++ = '\\'; *p++ = 'v'; s++; break;
4743 void UpdateStringOfList(struct Jim_Obj *objPtr)
4745 int i, bufLen, realLength;
4749 Jim_Obj **ele = objPtr->internalRep.listValue.ele;
4751 /* (Over) Estimate the space needed. */
4752 quotingType = Jim_Alloc(sizeof(int)*objPtr->internalRep.listValue.len+1);
4754 for (i = 0; i < objPtr->internalRep.listValue.len; i++) {
4757 strRep = Jim_GetString(ele[i], &len);
4758 quotingType[i] = ListElementQuotingType(strRep, len);
4759 switch (quotingType[i]) {
4760 case JIM_ELESTR_SIMPLE: bufLen += len; break;
4761 case JIM_ELESTR_BRACE: bufLen += len+2; break;
4762 case JIM_ELESTR_QUOTE: bufLen += len*2; break;
4764 bufLen++; /* elements separator. */
4768 /* Generate the string rep. */
4769 p = objPtr->bytes = Jim_Alloc(bufLen+1);
4771 for (i = 0; i < objPtr->internalRep.listValue.len; i++) {
4773 const char *strRep = Jim_GetString(ele[i], &len);
4776 switch(quotingType[i]) {
4777 case JIM_ELESTR_SIMPLE:
4778 memcpy(p, strRep, len);
4782 case JIM_ELESTR_BRACE:
4784 memcpy(p, strRep, len);
4787 realLength += len+2;
4789 case JIM_ELESTR_QUOTE:
4790 q = BackslashQuoteString(strRep, len, &qlen);
4797 /* Add a separating space */
4798 if (i+1 != objPtr->internalRep.listValue.len) {
4803 *p = '\0'; /* nul term. */
4804 objPtr->length = realLength;
4805 Jim_Free(quotingType);
4808 int SetListFromAny(Jim_Interp *interp, struct Jim_Obj *objPtr)
4810 struct JimParserCtx parser;
4814 /* Get the string representation */
4815 str = Jim_GetString(objPtr, &strLen);
4817 /* Free the old internal repr just now and initialize the
4818 * new one just now. The string->list conversion can't fail. */
4819 Jim_FreeIntRep(interp, objPtr);
4820 objPtr->typePtr = &listObjType;
4821 objPtr->internalRep.listValue.len = 0;
4822 objPtr->internalRep.listValue.maxLen = 0;
4823 objPtr->internalRep.listValue.ele = NULL;
4825 /* Convert into a list */
4826 JimParserInit(&parser, str, strLen, 1);
4827 while(!JimParserEof(&parser)) {
4830 Jim_Obj *elementPtr;
4832 JimParseList(&parser);
4833 if (JimParserTtype(&parser) != JIM_TT_STR &&
4834 JimParserTtype(&parser) != JIM_TT_ESC)
4836 token = JimParserGetToken(&parser, &tokenLen, &type, NULL);
4837 elementPtr = Jim_NewStringObjNoAlloc(interp, token, tokenLen);
4838 ListAppendElement(objPtr, elementPtr);
4843 Jim_Obj *Jim_NewListObj(Jim_Interp *interp, Jim_Obj *const *elements,
4849 objPtr = Jim_NewObj(interp);
4850 objPtr->typePtr = &listObjType;
4851 objPtr->bytes = NULL;
4852 objPtr->internalRep.listValue.ele = NULL;
4853 objPtr->internalRep.listValue.len = 0;
4854 objPtr->internalRep.listValue.maxLen = 0;
4855 for (i = 0; i < len; i++) {
4856 ListAppendElement(objPtr, elements[i]);
4861 /* Return a vector of Jim_Obj with the elements of a Jim list, and the
4862 * length of the vector. Note that the user of this function should make
4863 * sure that the list object can't shimmer while the vector returned
4864 * is in use, this vector is the one stored inside the internal representation
4865 * of the list object. This function is not exported, extensions should
4866 * always access to the List object elements using Jim_ListIndex(). */
4867 static void JimListGetElements(Jim_Interp *interp, Jim_Obj *listObj, int *argc,
4870 Jim_ListLength(interp, listObj, argc);
4871 assert(listObj->typePtr == &listObjType);
4872 *listVec = listObj->internalRep.listValue.ele;
4875 /* ListSortElements type values */
4876 enum {JIM_LSORT_ASCII, JIM_LSORT_NOCASE, JIM_LSORT_ASCII_DECR,
4877 JIM_LSORT_NOCASE_DECR};
4879 /* Sort the internal rep of a list. */
4880 static int ListSortString(Jim_Obj **lhsObj, Jim_Obj **rhsObj)
4882 return Jim_StringCompareObj(*lhsObj, *rhsObj, 0);
4885 static int ListSortStringDecr(Jim_Obj **lhsObj, Jim_Obj **rhsObj)
4887 return Jim_StringCompareObj(*lhsObj, *rhsObj, 0) * -1;
4890 static int ListSortStringNoCase(Jim_Obj **lhsObj, Jim_Obj **rhsObj)
4892 return Jim_StringCompareObj(*lhsObj, *rhsObj, 1);
4895 static int ListSortStringNoCaseDecr(Jim_Obj **lhsObj, Jim_Obj **rhsObj)
4897 return Jim_StringCompareObj(*lhsObj, *rhsObj, 1) * -1;
4900 /* Sort a list *in place*. MUST be called with non-shared objects. */
4901 static void ListSortElements(Jim_Interp *interp, Jim_Obj *listObjPtr, int type)
4903 typedef int (qsort_comparator)(const void *, const void *);
4904 int (*fn)(Jim_Obj**, Jim_Obj**);
4908 if (Jim_IsShared(listObjPtr))
4909 Jim_Panic(interp,"Jim_ListSortElements called with shared object");
4910 if (listObjPtr->typePtr != &listObjType)
4911 SetListFromAny(interp, listObjPtr);
4913 vector = listObjPtr->internalRep.listValue.ele;
4914 len = listObjPtr->internalRep.listValue.len;
4916 case JIM_LSORT_ASCII: fn = ListSortString; break;
4917 case JIM_LSORT_NOCASE: fn = ListSortStringNoCase; break;
4918 case JIM_LSORT_ASCII_DECR: fn = ListSortStringDecr; break;
4919 case JIM_LSORT_NOCASE_DECR: fn = ListSortStringNoCaseDecr; break;
4921 fn = NULL; /* avoid warning */
4922 Jim_Panic(interp,"ListSort called with invalid sort type");
4924 qsort(vector, len, sizeof(Jim_Obj *), (qsort_comparator *)fn);
4925 Jim_InvalidateStringRep(listObjPtr);
4928 /* This is the low-level function to append an element to a list.
4929 * The higher-level Jim_ListAppendElement() performs shared object
4930 * check and invalidate the string repr. This version is used
4931 * in the internals of the List Object and is not exported.
4933 * NOTE: this function can be called only against objects
4934 * with internal type of List. */
4935 void ListAppendElement(Jim_Obj *listPtr, Jim_Obj *objPtr)
4937 int requiredLen = listPtr->internalRep.listValue.len + 1;
4939 if (requiredLen > listPtr->internalRep.listValue.maxLen) {
4940 int maxLen = requiredLen * 2;
4942 listPtr->internalRep.listValue.ele =
4943 Jim_Realloc(listPtr->internalRep.listValue.ele,
4944 sizeof(Jim_Obj*)*maxLen);
4945 listPtr->internalRep.listValue.maxLen = maxLen;
4947 listPtr->internalRep.listValue.ele[listPtr->internalRep.listValue.len] =
4949 listPtr->internalRep.listValue.len ++;
4950 Jim_IncrRefCount(objPtr);
4953 /* This is the low-level function to insert elements into a list.
4954 * The higher-level Jim_ListInsertElements() performs shared object
4955 * check and invalidate the string repr. This version is used
4956 * in the internals of the List Object and is not exported.
4958 * NOTE: this function can be called only against objects
4959 * with internal type of List. */
4960 void ListInsertElements(Jim_Obj *listPtr, int index, int elemc,
4961 Jim_Obj *const *elemVec)
4963 int currentLen = listPtr->internalRep.listValue.len;
4964 int requiredLen = currentLen + elemc;
4968 if (requiredLen > listPtr->internalRep.listValue.maxLen) {
4969 int maxLen = requiredLen * 2;
4971 listPtr->internalRep.listValue.ele =
4972 Jim_Realloc(listPtr->internalRep.listValue.ele,
4973 sizeof(Jim_Obj*)*maxLen);
4974 listPtr->internalRep.listValue.maxLen = maxLen;
4976 point = listPtr->internalRep.listValue.ele + index;
4977 memmove(point+elemc, point, (currentLen-index) * sizeof(Jim_Obj*));
4978 for (i=0; i < elemc; ++i) {
4979 point[i] = elemVec[i];
4980 Jim_IncrRefCount(point[i]);
4982 listPtr->internalRep.listValue.len += elemc;
4985 /* Appends every element of appendListPtr into listPtr.
4986 * Both have to be of the list type. */
4987 void ListAppendList(Jim_Obj *listPtr, Jim_Obj *appendListPtr)
4989 int i, oldLen = listPtr->internalRep.listValue.len;
4990 int appendLen = appendListPtr->internalRep.listValue.len;
4991 int requiredLen = oldLen + appendLen;
4993 if (requiredLen > listPtr->internalRep.listValue.maxLen) {
4994 int maxLen = requiredLen * 2;
4996 listPtr->internalRep.listValue.ele =
4997 Jim_Realloc(listPtr->internalRep.listValue.ele,
4998 sizeof(Jim_Obj*)*maxLen);
4999 listPtr->internalRep.listValue.maxLen = maxLen;
5001 for (i = 0; i < appendLen; i++) {
5002 Jim_Obj *objPtr = appendListPtr->internalRep.listValue.ele[i];
5003 listPtr->internalRep.listValue.ele[oldLen+i] = objPtr;
5004 Jim_IncrRefCount(objPtr);
5006 listPtr->internalRep.listValue.len += appendLen;
5009 void Jim_ListAppendElement(Jim_Interp *interp, Jim_Obj *listPtr, Jim_Obj *objPtr)
5011 if (Jim_IsShared(listPtr))
5012 Jim_Panic(interp,"Jim_ListAppendElement called with shared object");
5013 if (listPtr->typePtr != &listObjType)
5014 SetListFromAny(interp, listPtr);
5015 Jim_InvalidateStringRep(listPtr);
5016 ListAppendElement(listPtr, objPtr);
5019 void Jim_ListAppendList(Jim_Interp *interp, Jim_Obj *listPtr, Jim_Obj *appendListPtr)
5021 if (Jim_IsShared(listPtr))
5022 Jim_Panic(interp,"Jim_ListAppendList called with shared object");
5023 if (listPtr->typePtr != &listObjType)
5024 SetListFromAny(interp, listPtr);
5025 Jim_InvalidateStringRep(listPtr);
5026 ListAppendList(listPtr, appendListPtr);
5029 void Jim_ListLength(Jim_Interp *interp, Jim_Obj *listPtr, int *intPtr)
5031 if (listPtr->typePtr != &listObjType)
5032 SetListFromAny(interp, listPtr);
5033 *intPtr = listPtr->internalRep.listValue.len;
5036 void Jim_ListInsertElements(Jim_Interp *interp, Jim_Obj *listPtr, int index,
5037 int objc, Jim_Obj *const *objVec)
5039 if (Jim_IsShared(listPtr))
5040 Jim_Panic(interp,"Jim_ListInsertElement called with shared object");
5041 if (listPtr->typePtr != &listObjType)
5042 SetListFromAny(interp, listPtr);
5043 if (index >= 0 && index > listPtr->internalRep.listValue.len)
5044 index = listPtr->internalRep.listValue.len;
5045 else if (index < 0 )
5047 Jim_InvalidateStringRep(listPtr);
5048 ListInsertElements(listPtr, index, objc, objVec);
5051 int Jim_ListIndex(Jim_Interp *interp, Jim_Obj *listPtr, int index,
5052 Jim_Obj **objPtrPtr, int flags)
5054 if (listPtr->typePtr != &listObjType)
5055 SetListFromAny(interp, listPtr);
5056 if ((index >= 0 && index >= listPtr->internalRep.listValue.len) ||
5057 (index < 0 && (-index-1) >= listPtr->internalRep.listValue.len)) {
5058 if (flags & JIM_ERRMSG) {
5059 Jim_SetResultString(interp,
5060 "list index out of range", -1);
5065 index = listPtr->internalRep.listValue.len+index;
5066 *objPtrPtr = listPtr->internalRep.listValue.ele[index];
5070 static int ListSetIndex(Jim_Interp *interp, Jim_Obj *listPtr, int index,
5071 Jim_Obj *newObjPtr, int flags)
5073 if (listPtr->typePtr != &listObjType)
5074 SetListFromAny(interp, listPtr);
5075 if ((index >= 0 && index >= listPtr->internalRep.listValue.len) ||
5076 (index < 0 && (-index-1) >= listPtr->internalRep.listValue.len)) {
5077 if (flags & JIM_ERRMSG) {
5078 Jim_SetResultString(interp,
5079 "list index out of range", -1);
5084 index = listPtr->internalRep.listValue.len+index;
5085 Jim_DecrRefCount(interp, listPtr->internalRep.listValue.ele[index]);
5086 listPtr->internalRep.listValue.ele[index] = newObjPtr;
5087 Jim_IncrRefCount(newObjPtr);
5091 /* Modify the list stored into the variable named 'varNamePtr'
5092 * setting the element specified by the 'indexc' indexes objects in 'indexv',
5093 * with the new element 'newObjptr'. */
5094 int Jim_SetListIndex(Jim_Interp *interp, Jim_Obj *varNamePtr,
5095 Jim_Obj *const *indexv, int indexc, Jim_Obj *newObjPtr)
5097 Jim_Obj *varObjPtr, *objPtr, *listObjPtr;
5098 int shared, i, index;
5100 varObjPtr = objPtr = Jim_GetVariable(interp, varNamePtr, JIM_ERRMSG);
5103 if ((shared = Jim_IsShared(objPtr)))
5104 varObjPtr = objPtr = Jim_DuplicateObj(interp, objPtr);
5105 for (i = 0; i < indexc-1; i++) {
5106 listObjPtr = objPtr;
5107 if (Jim_GetIndex(interp, indexv[i], &index) != JIM_OK)
5109 if (Jim_ListIndex(interp, listObjPtr, index, &objPtr,
5110 JIM_ERRMSG) != JIM_OK) {
5113 if (Jim_IsShared(objPtr)) {
5114 objPtr = Jim_DuplicateObj(interp, objPtr);
5115 ListSetIndex(interp, listObjPtr, index, objPtr, JIM_NONE);
5117 Jim_InvalidateStringRep(listObjPtr);
5119 if (Jim_GetIndex(interp, indexv[indexc-1], &index) != JIM_OK)
5121 if (ListSetIndex(interp, objPtr, index, newObjPtr, JIM_ERRMSG) == JIM_ERR)
5123 Jim_InvalidateStringRep(objPtr);
5124 Jim_InvalidateStringRep(varObjPtr);
5125 if (Jim_SetVariable(interp, varNamePtr, varObjPtr) != JIM_OK)
5127 Jim_SetResult(interp, varObjPtr);
5131 Jim_FreeNewObj(interp, varObjPtr);
5136 Jim_Obj *Jim_ConcatObj(Jim_Interp *interp, int objc, Jim_Obj *const *objv)
5140 /* If all the objects in objv are lists without string rep.
5141 * it's possible to return a list as result, that's the
5142 * concatenation of all the lists. */
5143 for (i = 0; i < objc; i++) {
5144 if (objv[i]->typePtr != &listObjType || objv[i]->bytes)
5148 Jim_Obj *objPtr = Jim_NewListObj(interp, NULL, 0);
5149 for (i = 0; i < objc; i++)
5150 Jim_ListAppendList(interp, objPtr, objv[i]);
5153 /* Else... we have to glue strings together */
5154 int len = 0, objLen;
5157 /* Compute the length */
5158 for (i = 0; i < objc; i++) {
5159 Jim_GetString(objv[i], &objLen);
5162 if (objc) len += objc-1;
5163 /* Create the string rep, and a stinrg object holding it. */
5164 p = bytes = Jim_Alloc(len+1);
5165 for (i = 0; i < objc; i++) {
5166 const char *s = Jim_GetString(objv[i], &objLen);
5167 while (objLen && (*s == ' ' || *s == '\t' || *s == '\n'))
5169 s++; objLen--; len--;
5171 while (objLen && (s[objLen-1] == ' ' ||
5172 s[objLen-1] == '\n' || s[objLen-1] == '\t')) {
5175 memcpy(p, s, objLen);
5177 if (objLen && i+1 != objc) {
5179 } else if (i+1 != objc) {
5180 /* Drop the space calcuated for this
5181 * element that is instead null. */
5186 return Jim_NewStringObjNoAlloc(interp, bytes, len);
5190 /* Returns a list composed of the elements in the specified range.
5191 * first and start are directly accepted as Jim_Objects and
5192 * processed for the end?-index? case. */
5193 Jim_Obj *Jim_ListRange(Jim_Interp *interp, Jim_Obj *listObjPtr, Jim_Obj *firstObjPtr, Jim_Obj *lastObjPtr)
5198 if (Jim_GetIndex(interp, firstObjPtr, &first) != JIM_OK ||
5199 Jim_GetIndex(interp, lastObjPtr, &last) != JIM_OK)
5201 Jim_ListLength(interp, listObjPtr, &len); /* will convert into list */
5202 first = JimRelToAbsIndex(len, first);
5203 last = JimRelToAbsIndex(len, last);
5204 JimRelToAbsRange(len, first, last, &first, &last, &rangeLen);
5205 return Jim_NewListObj(interp,
5206 listObjPtr->internalRep.listValue.ele+first, rangeLen);
5209 /* -----------------------------------------------------------------------------
5211 * ---------------------------------------------------------------------------*/
5212 static void FreeDictInternalRep(Jim_Interp *interp, Jim_Obj *objPtr);
5213 static void DupDictInternalRep(Jim_Interp *interp, Jim_Obj *srcPtr, Jim_Obj *dupPtr);
5214 static void UpdateStringOfDict(struct Jim_Obj *objPtr);
5215 static int SetDictFromAny(Jim_Interp *interp, struct Jim_Obj *objPtr);
5217 /* Dict HashTable Type.
5219 * Keys and Values are Jim objects. */
5221 unsigned int JimObjectHTHashFunction(const void *key)
5224 Jim_Obj *objPtr = (Jim_Obj*) key;
5227 str = Jim_GetString(objPtr, &len);
5228 h = Jim_GenHashFunction((unsigned char*)str, len);
5232 int JimObjectHTKeyCompare(void *privdata, const void *key1, const void *key2)
5234 JIM_NOTUSED(privdata);
5236 return Jim_StringEqObj((Jim_Obj*)key1, (Jim_Obj*)key2, 0);
5239 static void JimObjectHTKeyValDestructor(void *interp, void *val)
5241 Jim_Obj *objPtr = val;
5243 Jim_DecrRefCount(interp, objPtr);
5246 static Jim_HashTableType JimDictHashTableType = {
5247 JimObjectHTHashFunction, /* hash function */
5250 JimObjectHTKeyCompare, /* key compare */
5251 (void(*)(void*, const void*)) /* ATTENTION: const cast */
5252 JimObjectHTKeyValDestructor, /* key destructor */
5253 JimObjectHTKeyValDestructor /* val destructor */
5256 /* Note that while the elements of the dict may contain references,
5257 * the list object itself can't. This basically means that the
5258 * dict object string representation as a whole can't contain references
5259 * that are not presents in the single elements. */
5260 static Jim_ObjType dictObjType = {
5262 FreeDictInternalRep,
5268 void FreeDictInternalRep(Jim_Interp *interp, Jim_Obj *objPtr)
5270 JIM_NOTUSED(interp);
5272 Jim_FreeHashTable(objPtr->internalRep.ptr);
5273 Jim_Free(objPtr->internalRep.ptr);
5276 void DupDictInternalRep(Jim_Interp *interp, Jim_Obj *srcPtr, Jim_Obj *dupPtr)
5278 Jim_HashTable *ht, *dupHt;
5279 Jim_HashTableIterator *htiter;
5282 /* Create a new hash table */
5283 ht = srcPtr->internalRep.ptr;
5284 dupHt = Jim_Alloc(sizeof(*dupHt));
5285 Jim_InitHashTable(dupHt, &JimDictHashTableType, interp);
5287 Jim_ExpandHashTable(dupHt, ht->size);
5288 /* Copy every element from the source to the dup hash table */
5289 htiter = Jim_GetHashTableIterator(ht);
5290 while ((he = Jim_NextHashEntry(htiter)) != NULL) {
5291 const Jim_Obj *keyObjPtr = he->key;
5292 Jim_Obj *valObjPtr = he->val;
5294 Jim_IncrRefCount((Jim_Obj*)keyObjPtr); /* ATTENTION: const cast */
5295 Jim_IncrRefCount(valObjPtr);
5296 Jim_AddHashEntry(dupHt, keyObjPtr, valObjPtr);
5298 Jim_FreeHashTableIterator(htiter);
5300 dupPtr->internalRep.ptr = dupHt;
5301 dupPtr->typePtr = &dictObjType;
5304 void UpdateStringOfDict(struct Jim_Obj *objPtr)
5306 int i, bufLen, realLength;
5309 int *quotingType, objc;
5311 Jim_HashTableIterator *htiter;
5315 /* Trun the hash table into a flat vector of Jim_Objects. */
5316 ht = objPtr->internalRep.ptr;
5318 objv = Jim_Alloc(objc*sizeof(Jim_Obj*));
5319 htiter = Jim_GetHashTableIterator(ht);
5321 while ((he = Jim_NextHashEntry(htiter)) != NULL) {
5322 objv[i++] = (Jim_Obj*)he->key; /* ATTENTION: const cast */
5323 objv[i++] = he->val;
5325 Jim_FreeHashTableIterator(htiter);
5326 /* (Over) Estimate the space needed. */
5327 quotingType = Jim_Alloc(sizeof(int)*objc);
5329 for (i = 0; i < objc; i++) {
5332 strRep = Jim_GetString(objv[i], &len);
5333 quotingType[i] = ListElementQuotingType(strRep, len);
5334 switch (quotingType[i]) {
5335 case JIM_ELESTR_SIMPLE: bufLen += len; break;
5336 case JIM_ELESTR_BRACE: bufLen += len+2; break;
5337 case JIM_ELESTR_QUOTE: bufLen += len*2; break;
5339 bufLen++; /* elements separator. */
5343 /* Generate the string rep. */
5344 p = objPtr->bytes = Jim_Alloc(bufLen+1);
5346 for (i = 0; i < objc; i++) {
5348 const char *strRep = Jim_GetString(objv[i], &len);
5351 switch(quotingType[i]) {
5352 case JIM_ELESTR_SIMPLE:
5353 memcpy(p, strRep, len);
5357 case JIM_ELESTR_BRACE:
5359 memcpy(p, strRep, len);
5362 realLength += len+2;
5364 case JIM_ELESTR_QUOTE:
5365 q = BackslashQuoteString(strRep, len, &qlen);
5372 /* Add a separating space */
5378 *p = '\0'; /* nul term. */
5379 objPtr->length = realLength;
5380 Jim_Free(quotingType);
5384 int SetDictFromAny(Jim_Interp *interp, struct Jim_Obj *objPtr)
5386 struct JimParserCtx parser;
5392 /* Get the string representation */
5393 str = Jim_GetString(objPtr, &strLen);
5395 /* Free the old internal repr just now and initialize the
5396 * new one just now. The string->list conversion can't fail. */
5397 Jim_FreeIntRep(interp, objPtr);
5398 ht = Jim_Alloc(sizeof(*ht));
5399 Jim_InitHashTable(ht, &JimDictHashTableType, interp);
5400 objPtr->typePtr = &dictObjType;
5401 objPtr->internalRep.ptr = ht;
5403 /* Convert into a dict */
5404 JimParserInit(&parser, str, strLen, 1);
5406 while(!JimParserEof(&parser)) {
5410 JimParseList(&parser);
5411 if (JimParserTtype(&parser) != JIM_TT_STR &&
5412 JimParserTtype(&parser) != JIM_TT_ESC)
5414 token = JimParserGetToken(&parser, &tokenLen, &type, NULL);
5415 objv[i++] = Jim_NewStringObjNoAlloc(interp, token, tokenLen);
5418 Jim_IncrRefCount(objv[0]);
5419 Jim_IncrRefCount(objv[1]);
5420 if (Jim_AddHashEntry(ht, objv[0], objv[1]) != JIM_OK) {
5422 he = Jim_FindHashEntry(ht, objv[0]);
5423 Jim_DecrRefCount(interp, objv[0]);
5424 /* ATTENTION: const cast */
5425 Jim_DecrRefCount(interp, (Jim_Obj*)he->val);
5431 Jim_FreeNewObj(interp, objv[0]);
5432 objPtr->typePtr = NULL;
5433 Jim_FreeHashTable(ht);
5434 Jim_SetResultString(interp, "invalid dictionary value: must be a list with an even number of elements", -1);
5440 /* Dict object API */
5442 /* Add an element to a dict. objPtr must be of the "dict" type.
5443 * The higer-level exported function is Jim_DictAddElement().
5444 * If an element with the specified key already exists, the value
5445 * associated is replaced with the new one.
5447 * if valueObjPtr == NULL, the key is instead removed if it exists. */
5448 static void DictAddElement(Jim_Interp *interp, Jim_Obj *objPtr,
5449 Jim_Obj *keyObjPtr, Jim_Obj *valueObjPtr)
5451 Jim_HashTable *ht = objPtr->internalRep.ptr;
5453 if (valueObjPtr == NULL) { /* unset */
5454 Jim_DeleteHashEntry(ht, keyObjPtr);
5457 Jim_IncrRefCount(keyObjPtr);
5458 Jim_IncrRefCount(valueObjPtr);
5459 if (Jim_AddHashEntry(ht, keyObjPtr, valueObjPtr) != JIM_OK) {
5460 Jim_HashEntry *he = Jim_FindHashEntry(ht, keyObjPtr);
5461 Jim_DecrRefCount(interp, keyObjPtr);
5462 /* ATTENTION: const cast */
5463 Jim_DecrRefCount(interp, (Jim_Obj*)he->val);
5464 he->val = valueObjPtr;
5468 /* Add an element, higher-level interface for DictAddElement().
5469 * If valueObjPtr == NULL, the key is removed if it exists. */
5470 int Jim_DictAddElement(Jim_Interp *interp, Jim_Obj *objPtr,
5471 Jim_Obj *keyObjPtr, Jim_Obj *valueObjPtr)
5473 if (Jim_IsShared(objPtr))
5474 Jim_Panic(interp,"Jim_DictAddElement called with shared object");
5475 if (objPtr->typePtr != &dictObjType) {
5476 if (SetDictFromAny(interp, objPtr) != JIM_OK)
5479 DictAddElement(interp, objPtr, keyObjPtr, valueObjPtr);
5480 Jim_InvalidateStringRep(objPtr);
5484 Jim_Obj *Jim_NewDictObj(Jim_Interp *interp, Jim_Obj *const *elements, int len)
5490 Jim_Panic(interp,"Jim_NewDicObj() 'len' argument must be even");
5492 objPtr = Jim_NewObj(interp);
5493 objPtr->typePtr = &dictObjType;
5494 objPtr->bytes = NULL;
5495 objPtr->internalRep.ptr = Jim_Alloc(sizeof(Jim_HashTable));
5496 Jim_InitHashTable(objPtr->internalRep.ptr, &JimDictHashTableType, interp);
5497 for (i = 0; i < len; i += 2)
5498 DictAddElement(interp, objPtr, elements[i], elements[i+1]);
5502 /* Return the value associated to the specified dict key */
5503 int Jim_DictKey(Jim_Interp *interp, Jim_Obj *dictPtr, Jim_Obj *keyPtr,
5504 Jim_Obj **objPtrPtr, int flags)
5509 if (dictPtr->typePtr != &dictObjType) {
5510 if (SetDictFromAny(interp, dictPtr) != JIM_OK)
5513 ht = dictPtr->internalRep.ptr;
5514 if ((he = Jim_FindHashEntry(ht, keyPtr)) == NULL) {
5515 if (flags & JIM_ERRMSG) {
5516 Jim_SetResult(interp, Jim_NewEmptyStringObj(interp));
5517 Jim_AppendStrings(interp, Jim_GetResult(interp),
5518 "key \"", Jim_GetString(keyPtr, NULL),
5519 "\" not found in dictionary", NULL);
5523 *objPtrPtr = he->val;
5527 /* Return the value associated to the specified dict keys */
5528 int Jim_DictKeysVector(Jim_Interp *interp, Jim_Obj *dictPtr,
5529 Jim_Obj *const *keyv, int keyc, Jim_Obj **objPtrPtr, int flags)
5535 *objPtrPtr = dictPtr;
5539 for (i = 0; i < keyc; i++) {
5540 if (Jim_DictKey(interp, dictPtr, keyv[i], &objPtr, flags)
5545 *objPtrPtr = objPtr;
5549 /* Modify the dict stored into the variable named 'varNamePtr'
5550 * setting the element specified by the 'keyc' keys objects in 'keyv',
5551 * with the new value of the element 'newObjPtr'.
5553 * If newObjPtr == NULL the operation is to remove the given key
5554 * from the dictionary. */
5555 int Jim_SetDictKeysVector(Jim_Interp *interp, Jim_Obj *varNamePtr,
5556 Jim_Obj *const *keyv, int keyc, Jim_Obj *newObjPtr)
5558 Jim_Obj *varObjPtr, *objPtr, *dictObjPtr;
5561 varObjPtr = objPtr = Jim_GetVariable(interp, varNamePtr, JIM_ERRMSG);
5562 if (objPtr == NULL) {
5563 if (newObjPtr == NULL) /* Cannot remove a key from non existing var */
5565 varObjPtr = objPtr = Jim_NewDictObj(interp, NULL, 0);
5566 if (Jim_SetVariable(interp, varNamePtr, objPtr) != JIM_OK) {
5567 Jim_FreeNewObj(interp, varObjPtr);
5571 if ((shared = Jim_IsShared(objPtr)))
5572 varObjPtr = objPtr = Jim_DuplicateObj(interp, objPtr);
5573 for (i = 0; i < keyc-1; i++) {
5574 dictObjPtr = objPtr;
5576 /* Check if it's a valid dictionary */
5577 if (dictObjPtr->typePtr != &dictObjType) {
5578 if (SetDictFromAny(interp, dictObjPtr) != JIM_OK)
5581 /* Check if the given key exists. */
5582 Jim_InvalidateStringRep(dictObjPtr);
5583 if (Jim_DictKey(interp, dictObjPtr, keyv[i], &objPtr,
5584 newObjPtr ? JIM_NONE : JIM_ERRMSG) == JIM_OK)
5586 /* This key exists at the current level.
5587 * Make sure it's not shared!. */
5588 if (Jim_IsShared(objPtr)) {
5589 objPtr = Jim_DuplicateObj(interp, objPtr);
5590 DictAddElement(interp, dictObjPtr, keyv[i], objPtr);
5593 /* Key not found. If it's an [unset] operation
5594 * this is an error. Only the last key may not
5596 if (newObjPtr == NULL)
5598 /* Otherwise set an empty dictionary
5599 * as key's value. */
5600 objPtr = Jim_NewDictObj(interp, NULL, 0);
5601 DictAddElement(interp, dictObjPtr, keyv[i], objPtr);
5604 if (Jim_DictAddElement(interp, objPtr, keyv[keyc-1], newObjPtr)
5607 Jim_InvalidateStringRep(objPtr);
5608 Jim_InvalidateStringRep(varObjPtr);
5609 if (Jim_SetVariable(interp, varNamePtr, varObjPtr) != JIM_OK)
5611 Jim_SetResult(interp, varObjPtr);
5615 Jim_FreeNewObj(interp, varObjPtr);
5620 /* -----------------------------------------------------------------------------
5622 * ---------------------------------------------------------------------------*/
5623 static void UpdateStringOfIndex(struct Jim_Obj *objPtr);
5624 static int SetIndexFromAny(Jim_Interp *interp, struct Jim_Obj *objPtr);
5626 static Jim_ObjType indexObjType = {
5630 UpdateStringOfIndex,
5634 void UpdateStringOfIndex(struct Jim_Obj *objPtr)
5637 char buf[JIM_INTEGER_SPACE+1];
5639 if (objPtr->internalRep.indexValue >= 0)
5640 len = sprintf(buf, "%d", objPtr->internalRep.indexValue);
5641 else if (objPtr->internalRep.indexValue == -1)
5642 len = sprintf(buf, "end");
5644 len = sprintf(buf, "end%d", objPtr->internalRep.indexValue+1);
5646 objPtr->bytes = Jim_Alloc(len+1);
5647 memcpy(objPtr->bytes, buf, len+1);
5648 objPtr->length = len;
5651 int SetIndexFromAny(Jim_Interp *interp, Jim_Obj *objPtr)
5656 /* Get the string representation */
5657 str = Jim_GetString(objPtr, NULL);
5658 /* Try to convert into an index */
5659 if (!strcmp(str, "end")) {
5663 if (!strncmp(str, "end-", 4)) {
5667 if (Jim_StringToIndex(str, &index) != JIM_OK) {
5668 Jim_SetResult(interp, Jim_NewEmptyStringObj(interp));
5669 Jim_AppendStrings(interp, Jim_GetResult(interp),
5670 "bad index \"", Jim_GetString(objPtr, NULL), "\": "
5671 "must be integer or end?-integer?", NULL);
5680 } else if (!end && index < 0)
5682 /* Free the old internal repr and set the new one. */
5683 Jim_FreeIntRep(interp, objPtr);
5684 objPtr->typePtr = &indexObjType;
5685 objPtr->internalRep.indexValue = index;
5689 int Jim_GetIndex(Jim_Interp *interp, Jim_Obj *objPtr, int *indexPtr)
5691 /* Avoid shimmering if the object is an integer. */
5692 if (objPtr->typePtr == &intObjType) {
5693 jim_wide val = objPtr->internalRep.wideValue;
5694 if (!(val < LONG_MIN) && !(val > LONG_MAX)) {
5695 *indexPtr = (val < 0) ? -INT_MAX : (long)val;;
5699 if (objPtr->typePtr != &indexObjType &&
5700 SetIndexFromAny(interp, objPtr) == JIM_ERR)
5702 *indexPtr = objPtr->internalRep.indexValue;
5706 /* -----------------------------------------------------------------------------
5707 * Return Code Object.
5708 * ---------------------------------------------------------------------------*/
5710 static int SetReturnCodeFromAny(Jim_Interp *interp, Jim_Obj *objPtr);
5712 static Jim_ObjType returnCodeObjType = {
5720 int SetReturnCodeFromAny(Jim_Interp *interp, Jim_Obj *objPtr)
5723 int strLen, returnCode;
5726 /* Get the string representation */
5727 str = Jim_GetString(objPtr, &strLen);
5728 /* Try to convert into an integer */
5729 if (JimGetWideNoErr(interp, objPtr, &wideValue) != JIM_ERR)
5730 returnCode = (int) wideValue;
5731 else if (!JimStringCompare(str, strLen, "ok", 2, JIM_NOCASE))
5732 returnCode = JIM_OK;
5733 else if (!JimStringCompare(str, strLen, "error", 5, JIM_NOCASE))
5734 returnCode = JIM_ERR;
5735 else if (!JimStringCompare(str, strLen, "return", 6, JIM_NOCASE))
5736 returnCode = JIM_RETURN;
5737 else if (!JimStringCompare(str, strLen, "break", 5, JIM_NOCASE))
5738 returnCode = JIM_BREAK;
5739 else if (!JimStringCompare(str, strLen, "continue", 8, JIM_NOCASE))
5740 returnCode = JIM_CONTINUE;
5741 else if (!JimStringCompare(str, strLen, "eval", 4, JIM_NOCASE))
5742 returnCode = JIM_EVAL;
5743 else if (!JimStringCompare(str, strLen, "exit", 4, JIM_NOCASE))
5744 returnCode = JIM_EXIT;
5746 Jim_SetResult(interp, Jim_NewEmptyStringObj(interp));
5747 Jim_AppendStrings(interp, Jim_GetResult(interp),
5748 "expected return code but got '", str, "'",
5752 /* Free the old internal repr and set the new one. */
5753 Jim_FreeIntRep(interp, objPtr);
5754 objPtr->typePtr = &returnCodeObjType;
5755 objPtr->internalRep.returnCode = returnCode;
5759 int Jim_GetReturnCode(Jim_Interp *interp, Jim_Obj *objPtr, int *intPtr)
5761 if (objPtr->typePtr != &returnCodeObjType &&
5762 SetReturnCodeFromAny(interp, objPtr) == JIM_ERR)
5764 *intPtr = objPtr->internalRep.returnCode;
5768 /* -----------------------------------------------------------------------------
5769 * Expression Parsing
5770 * ---------------------------------------------------------------------------*/
5771 static int JimParseExprOperator(struct JimParserCtx *pc);
5772 static int JimParseExprNumber(struct JimParserCtx *pc);
5773 static int JimParseExprIrrational(struct JimParserCtx *pc);
5775 /* Exrp's Stack machine operators opcodes. */
5777 /* Binary operators (numbers) */
5778 #define JIM_EXPROP_BINARY_NUM_FIRST 0 /* first */
5779 #define JIM_EXPROP_MUL 0
5780 #define JIM_EXPROP_DIV 1
5781 #define JIM_EXPROP_MOD 2
5782 #define JIM_EXPROP_SUB 3
5783 #define JIM_EXPROP_ADD 4
5784 #define JIM_EXPROP_LSHIFT 5
5785 #define JIM_EXPROP_RSHIFT 6
5786 #define JIM_EXPROP_ROTL 7
5787 #define JIM_EXPROP_ROTR 8
5788 #define JIM_EXPROP_LT 9
5789 #define JIM_EXPROP_GT 10
5790 #define JIM_EXPROP_LTE 11
5791 #define JIM_EXPROP_GTE 12
5792 #define JIM_EXPROP_NUMEQ 13
5793 #define JIM_EXPROP_NUMNE 14
5794 #define JIM_EXPROP_BITAND 15
5795 #define JIM_EXPROP_BITXOR 16
5796 #define JIM_EXPROP_BITOR 17
5797 #define JIM_EXPROP_LOGICAND 18
5798 #define JIM_EXPROP_LOGICOR 19
5799 #define JIM_EXPROP_LOGICAND_LEFT 20
5800 #define JIM_EXPROP_LOGICOR_LEFT 21
5801 #define JIM_EXPROP_POW 22
5802 #define JIM_EXPROP_BINARY_NUM_LAST 22 /* last */
5804 /* Binary operators (strings) */
5805 #define JIM_EXPROP_STREQ 23
5806 #define JIM_EXPROP_STRNE 24
5808 /* Unary operators (numbers) */
5809 #define JIM_EXPROP_NOT 25
5810 #define JIM_EXPROP_BITNOT 26
5811 #define JIM_EXPROP_UNARYMINUS 27
5812 #define JIM_EXPROP_UNARYPLUS 28
5813 #define JIM_EXPROP_LOGICAND_RIGHT 29
5814 #define JIM_EXPROP_LOGICOR_RIGHT 30
5816 /* Ternary operators */
5817 #define JIM_EXPROP_TERNARY 31
5820 #define JIM_EXPROP_NUMBER 32
5821 #define JIM_EXPROP_COMMAND 33
5822 #define JIM_EXPROP_VARIABLE 34
5823 #define JIM_EXPROP_DICTSUGAR 35
5824 #define JIM_EXPROP_SUBST 36
5825 #define JIM_EXPROP_STRING 37
5827 /* Operators table */
5828 typedef struct Jim_ExprOperator {
5835 /* name - precedence - arity - opcode */
5836 static struct Jim_ExprOperator Jim_ExprOperators[] = {
5837 {"!", 300, 1, JIM_EXPROP_NOT},
5838 {"~", 300, 1, JIM_EXPROP_BITNOT},
5839 {"unarymin", 300, 1, JIM_EXPROP_UNARYMINUS},
5840 {"unaryplus", 300, 1, JIM_EXPROP_UNARYPLUS},
5842 {"**", 250, 2, JIM_EXPROP_POW},
5844 {"*", 200, 2, JIM_EXPROP_MUL},
5845 {"/", 200, 2, JIM_EXPROP_DIV},
5846 {"%", 200, 2, JIM_EXPROP_MOD},
5848 {"-", 100, 2, JIM_EXPROP_SUB},
5849 {"+", 100, 2, JIM_EXPROP_ADD},
5851 {"<<<", 90, 3, JIM_EXPROP_ROTL},
5852 {">>>", 90, 3, JIM_EXPROP_ROTR},
5853 {"<<", 90, 2, JIM_EXPROP_LSHIFT},
5854 {">>", 90, 2, JIM_EXPROP_RSHIFT},
5856 {"<", 80, 2, JIM_EXPROP_LT},
5857 {">", 80, 2, JIM_EXPROP_GT},
5858 {"<=", 80, 2, JIM_EXPROP_LTE},
5859 {">=", 80, 2, JIM_EXPROP_GTE},
5861 {"==", 70, 2, JIM_EXPROP_NUMEQ},
5862 {"!=", 70, 2, JIM_EXPROP_NUMNE},
5864 {"eq", 60, 2, JIM_EXPROP_STREQ},
5865 {"ne", 60, 2, JIM_EXPROP_STRNE},
5867 {"&", 50, 2, JIM_EXPROP_BITAND},
5868 {"^", 49, 2, JIM_EXPROP_BITXOR},
5869 {"|", 48, 2, JIM_EXPROP_BITOR},
5871 {"&&", 10, 2, JIM_EXPROP_LOGICAND},
5872 {"||", 10, 2, JIM_EXPROP_LOGICOR},
5874 {"?", 5, 3, JIM_EXPROP_TERNARY},
5875 /* private operators */
5876 {NULL, 10, 2, JIM_EXPROP_LOGICAND_LEFT},
5877 {NULL, 10, 1, JIM_EXPROP_LOGICAND_RIGHT},
5878 {NULL, 10, 2, JIM_EXPROP_LOGICOR_LEFT},
5879 {NULL, 10, 1, JIM_EXPROP_LOGICOR_RIGHT},
5882 #define JIM_EXPR_OPERATORS_NUM \
5883 (sizeof(Jim_ExprOperators)/sizeof(struct Jim_ExprOperator))
5885 int JimParseExpression(struct JimParserCtx *pc)
5887 /* Discard spaces and quoted newline */
5888 while(*(pc->p) == ' ' ||
5892 (*(pc->p) == '\\' && *(pc->p+1) == '\n')) {
5897 pc->tstart = pc->tend = pc->p;
5898 pc->tline = pc->linenr;
5899 pc->tt = JIM_TT_EOL;
5905 pc->tstart = pc->tend = pc->p;
5906 pc->tline = pc->linenr;
5907 pc->tt = JIM_TT_SUBEXPR_START;
5911 pc->tstart = pc->tend = pc->p;
5912 pc->tline = pc->linenr;
5913 pc->tt = JIM_TT_SUBEXPR_END;
5917 return JimParseCmd(pc);
5920 if (JimParseVar(pc) == JIM_ERR)
5921 return JimParseExprOperator(pc);
5926 if ((pc->tt == JIM_TT_NONE || pc->tt == JIM_TT_EXPR_OPERATOR) &&
5927 isdigit((int)*(pc->p+1)))
5928 return JimParseExprNumber(pc);
5930 return JimParseExprOperator(pc);
5932 case '0': case '1': case '2': case '3': case '4':
5933 case '5': case '6': case '7': case '8': case '9': case '.':
5934 return JimParseExprNumber(pc);
5938 /* Here it's possible to reuse the List String parsing. */
5939 pc->tt = JIM_TT_NONE; /* Make sure it's sensed as a new word. */
5940 return JimParseListStr(pc);
5944 if (JimParseExprIrrational(pc) == JIM_ERR)
5945 return JimParseExprOperator(pc);
5948 return JimParseExprOperator(pc);
5954 int JimParseExprNumber(struct JimParserCtx *pc)
5959 pc->tline = pc->linenr;
5960 if (*pc->p == '-') {
5963 while (isdigit((int)*pc->p) || (allowdot && *pc->p == '.') ||
5964 (pc->p-pc->tstart == 1 && *pc->tstart == '0' &&
5965 (*pc->p == 'x' || *pc->p == 'X')))
5970 if (!allowdot && *pc->p == 'e' && *(pc->p+1) == '-') {
5971 pc->p += 2; pc->len -= 2;
5975 pc->tt = JIM_TT_EXPR_NUMBER;
5979 int JimParseExprIrrational(struct JimParserCtx *pc)
5981 const char *Tokens[] = {"NaN", "nan", "NAN", "Inf", "inf", "INF", NULL};
5983 for (token = Tokens; *token != NULL; token++) {
5984 int len = strlen(*token);
5985 if (strncmp(*token, pc->p, len) == 0) {
5987 pc->tend = pc->p + len - 1;
5988 pc->p += len; pc->len -= len;
5989 pc->tline = pc->linenr;
5990 pc->tt = JIM_TT_EXPR_NUMBER;
5997 int JimParseExprOperator(struct JimParserCtx *pc)
6000 int bestIdx = -1, bestLen = 0;
6002 /* Try to get the longest match. */
6003 for (i = 0; i < (signed)JIM_EXPR_OPERATORS_NUM; i++) {
6007 opname = Jim_ExprOperators[i].name;
6008 if (opname == NULL) continue;
6009 oplen = strlen(opname);
6011 if (strncmp(opname, pc->p, oplen) == 0 && oplen > bestLen) {
6016 if (bestIdx == -1) return JIM_ERR;
6018 pc->tend = pc->p + bestLen - 1;
6019 pc->p += bestLen; pc->len -= bestLen;
6020 pc->tline = pc->linenr;
6021 pc->tt = JIM_TT_EXPR_OPERATOR;
6025 struct Jim_ExprOperator *JimExprOperatorInfo(const char *opname)
6028 for (i = 0; i < (signed)JIM_EXPR_OPERATORS_NUM; i++)
6029 if (Jim_ExprOperators[i].name &&
6030 strcmp(opname, Jim_ExprOperators[i].name) == 0)
6031 return &Jim_ExprOperators[i];
6035 struct Jim_ExprOperator *JimExprOperatorInfoByOpcode(int opcode)
6038 for (i = 0; i < (signed)JIM_EXPR_OPERATORS_NUM; i++)
6039 if (Jim_ExprOperators[i].opcode == opcode)
6040 return &Jim_ExprOperators[i];
6044 /* -----------------------------------------------------------------------------
6046 * ---------------------------------------------------------------------------*/
6047 static void FreeExprInternalRep(Jim_Interp *interp, Jim_Obj *objPtr);
6048 static void DupExprInternalRep(Jim_Interp *interp, Jim_Obj *srcPtr, Jim_Obj *dupPtr);
6049 static int SetExprFromAny(Jim_Interp *interp, struct Jim_Obj *objPtr);
6051 static Jim_ObjType exprObjType = {
6053 FreeExprInternalRep,
6056 JIM_TYPE_REFERENCES,
6059 /* Expr bytecode structure */
6060 typedef struct ExprByteCode {
6061 int *opcode; /* Integer array of opcodes. */
6062 Jim_Obj **obj; /* Array of associated Jim Objects. */
6063 int len; /* Bytecode length */
6064 int inUse; /* Used for sharing. */
6067 void FreeExprInternalRep(Jim_Interp *interp, Jim_Obj *objPtr)
6070 ExprByteCode *expr = (void*) objPtr->internalRep.ptr;
6073 if (expr->inUse != 0) return;
6074 for (i = 0; i < expr->len; i++)
6075 Jim_DecrRefCount(interp, expr->obj[i]);
6076 Jim_Free(expr->opcode);
6077 Jim_Free(expr->obj);
6081 void DupExprInternalRep(Jim_Interp *interp, Jim_Obj *srcPtr, Jim_Obj *dupPtr)
6083 JIM_NOTUSED(interp);
6084 JIM_NOTUSED(srcPtr);
6086 /* Just returns an simple string. */
6087 dupPtr->typePtr = NULL;
6090 /* Add a new instruction to an expression bytecode structure. */
6091 static void ExprObjAddInstr(Jim_Interp *interp, ExprByteCode *expr,
6092 int opcode, char *str, int len)
6094 expr->opcode = Jim_Realloc(expr->opcode, sizeof(int)*(expr->len+1));
6095 expr->obj = Jim_Realloc(expr->obj, sizeof(Jim_Obj*)*(expr->len+1));
6096 expr->opcode[expr->len] = opcode;
6097 expr->obj[expr->len] = Jim_NewStringObjNoAlloc(interp, str, len);
6098 Jim_IncrRefCount(expr->obj[expr->len]);
6102 /* Check if an expr program looks correct. */
6103 static int ExprCheckCorrectness(ExprByteCode *expr)
6108 /* Try to check if there are stack underflows,
6109 * and make sure at the end of the program there is
6110 * a single result on the stack. */
6111 for (i = 0; i < expr->len; i++) {
6112 switch(expr->opcode[i]) {
6113 case JIM_EXPROP_NUMBER:
6114 case JIM_EXPROP_STRING:
6115 case JIM_EXPROP_SUBST:
6116 case JIM_EXPROP_VARIABLE:
6117 case JIM_EXPROP_DICTSUGAR:
6118 case JIM_EXPROP_COMMAND:
6121 case JIM_EXPROP_NOT:
6122 case JIM_EXPROP_BITNOT:
6123 case JIM_EXPROP_UNARYMINUS:
6124 case JIM_EXPROP_UNARYPLUS:
6125 /* Unary operations */
6126 if (stacklen < 1) return JIM_ERR;
6128 case JIM_EXPROP_ADD:
6129 case JIM_EXPROP_SUB:
6130 case JIM_EXPROP_MUL:
6131 case JIM_EXPROP_DIV:
6132 case JIM_EXPROP_MOD:
6135 case JIM_EXPROP_LTE:
6136 case JIM_EXPROP_GTE:
6137 case JIM_EXPROP_ROTL:
6138 case JIM_EXPROP_ROTR:
6139 case JIM_EXPROP_LSHIFT:
6140 case JIM_EXPROP_RSHIFT:
6141 case JIM_EXPROP_NUMEQ:
6142 case JIM_EXPROP_NUMNE:
6143 case JIM_EXPROP_STREQ:
6144 case JIM_EXPROP_STRNE:
6145 case JIM_EXPROP_BITAND:
6146 case JIM_EXPROP_BITXOR:
6147 case JIM_EXPROP_BITOR:
6148 case JIM_EXPROP_LOGICAND:
6149 case JIM_EXPROP_LOGICOR:
6150 case JIM_EXPROP_POW:
6151 /* binary operations */
6152 if (stacklen < 2) return JIM_ERR;
6156 Jim_Panic(NULL,"Default opcode reached ExprCheckCorrectness");
6160 if (stacklen != 1) return JIM_ERR;
6164 static void ExprShareLiterals(Jim_Interp *interp, ExprByteCode *expr,
6165 ScriptObj *topLevelScript)
6170 for (i = 0; i < expr->len; i++) {
6171 Jim_Obj *foundObjPtr;
6173 if (expr->obj[i] == NULL) continue;
6174 foundObjPtr = ScriptSearchLiteral(interp, topLevelScript,
6175 NULL, expr->obj[i]);
6176 if (foundObjPtr != NULL) {
6177 Jim_IncrRefCount(foundObjPtr);
6178 Jim_DecrRefCount(interp, expr->obj[i]);
6179 expr->obj[i] = foundObjPtr;
6184 /* This procedure converts every occurrence of || and && opereators
6185 * in lazy unary versions.
6187 * a b || is converted into:
6189 * a <offset> |L b |R
6191 * a b && is converted into:
6193 * a <offset> &L b &R
6195 * "|L" checks if 'a' is true:
6196 * 1) if it is true pushes 1 and skips <offset> istructions to reach
6197 * the opcode just after |R.
6198 * 2) if it is false does nothing.
6199 * "|R" checks if 'b' is true:
6200 * 1) if it is true pushes 1, otherwise pushes 0.
6202 * "&L" checks if 'a' is true:
6203 * 1) if it is true does nothing.
6204 * 2) If it is false pushes 0 and skips <offset> istructions to reach
6205 * the opcode just after &R
6206 * "&R" checks if 'a' is true:
6207 * if it is true pushes 1, otherwise pushes 0.
6209 static void ExprMakeLazy(Jim_Interp *interp, ExprByteCode *expr)
6212 int index = -1, leftindex, arity, i, offset;
6213 Jim_ExprOperator *op;
6215 /* Search for || or && */
6216 for (i = 0; i < expr->len; i++) {
6217 if (expr->opcode[i] == JIM_EXPROP_LOGICAND ||
6218 expr->opcode[i] == JIM_EXPROP_LOGICOR) {
6223 if (index == -1) return;
6224 /* Search for the end of the first operator */
6225 leftindex = index-1;
6228 switch(expr->opcode[leftindex]) {
6229 case JIM_EXPROP_NUMBER:
6230 case JIM_EXPROP_COMMAND:
6231 case JIM_EXPROP_VARIABLE:
6232 case JIM_EXPROP_DICTSUGAR:
6233 case JIM_EXPROP_SUBST:
6234 case JIM_EXPROP_STRING:
6237 op = JimExprOperatorInfoByOpcode(expr->opcode[i]);
6239 Jim_Panic(interp,"Default reached in ExprMakeLazy()");
6248 expr->opcode = Jim_Realloc(expr->opcode, sizeof(int)*(expr->len+2));
6249 expr->obj = Jim_Realloc(expr->obj, sizeof(Jim_Obj*)*(expr->len+2));
6250 memmove(&expr->opcode[leftindex+2], &expr->opcode[leftindex],
6251 sizeof(int)*(expr->len-leftindex));
6252 memmove(&expr->obj[leftindex+2], &expr->obj[leftindex],
6253 sizeof(Jim_Obj*)*(expr->len-leftindex));
6256 offset = (index-leftindex)-1;
6257 Jim_DecrRefCount(interp, expr->obj[index]);
6258 if (expr->opcode[index] == JIM_EXPROP_LOGICAND) {
6259 expr->opcode[leftindex+1] = JIM_EXPROP_LOGICAND_LEFT;
6260 expr->opcode[index] = JIM_EXPROP_LOGICAND_RIGHT;
6261 expr->obj[leftindex+1] = Jim_NewStringObj(interp, "&L", -1);
6262 expr->obj[index] = Jim_NewStringObj(interp, "&R", -1);
6264 expr->opcode[leftindex+1] = JIM_EXPROP_LOGICOR_LEFT;
6265 expr->opcode[index] = JIM_EXPROP_LOGICOR_RIGHT;
6266 expr->obj[leftindex+1] = Jim_NewStringObj(interp, "|L", -1);
6267 expr->obj[index] = Jim_NewStringObj(interp, "|R", -1);
6269 expr->opcode[leftindex] = JIM_EXPROP_NUMBER;
6270 expr->obj[leftindex] = Jim_NewIntObj(interp, offset);
6271 Jim_IncrRefCount(expr->obj[index]);
6272 Jim_IncrRefCount(expr->obj[leftindex]);
6273 Jim_IncrRefCount(expr->obj[leftindex+1]);
6277 /* This method takes the string representation of an expression
6278 * and generates a program for the Expr's stack-based VM. */
6279 int SetExprFromAny(Jim_Interp *interp, struct Jim_Obj *objPtr)
6282 const char *exprText = Jim_GetString(objPtr, &exprTextLen);
6283 struct JimParserCtx parser;
6284 int i, shareLiterals;
6285 ExprByteCode *expr = Jim_Alloc(sizeof(*expr));
6287 Jim_ExprOperator *op;
6289 /* Perform literal sharing with the current procedure
6290 * running only if this expression appears to be not generated
6292 shareLiterals = objPtr->typePtr == &sourceObjType;
6294 expr->opcode = NULL;
6299 Jim_InitStack(&stack);
6300 JimParserInit(&parser, exprText, exprTextLen, 1);
6301 while(!JimParserEof(&parser)) {
6305 if (JimParseExpression(&parser) != JIM_OK) {
6306 Jim_SetResultString(interp, "Syntax error in expression", -1);
6309 token = JimParserGetToken(&parser, &len, &type, NULL);
6310 if (type == JIM_TT_EOL) {
6316 ExprObjAddInstr(interp, expr, JIM_EXPROP_STRING, token, len);
6319 ExprObjAddInstr(interp, expr, JIM_EXPROP_SUBST, token, len);
6322 ExprObjAddInstr(interp, expr, JIM_EXPROP_VARIABLE, token, len);
6324 case JIM_TT_DICTSUGAR:
6325 ExprObjAddInstr(interp, expr, JIM_EXPROP_DICTSUGAR, token, len);
6328 ExprObjAddInstr(interp, expr, JIM_EXPROP_COMMAND, token, len);
6330 case JIM_TT_EXPR_NUMBER:
6331 ExprObjAddInstr(interp, expr, JIM_EXPROP_NUMBER, token, len);
6333 case JIM_TT_EXPR_OPERATOR:
6334 op = JimExprOperatorInfo(token);
6336 Jim_ExprOperator *stackTopOp;
6338 if (Jim_StackPeek(&stack) != NULL) {
6339 stackTopOp = JimExprOperatorInfo(Jim_StackPeek(&stack));
6343 if (Jim_StackLen(&stack) && op->arity != 1 &&
6344 stackTopOp && stackTopOp->precedence >= op->precedence)
6346 ExprObjAddInstr(interp, expr, stackTopOp->opcode,
6347 Jim_StackPeek(&stack), -1);
6348 Jim_StackPop(&stack);
6353 Jim_StackPush(&stack, token);
6355 case JIM_TT_SUBEXPR_START:
6356 Jim_StackPush(&stack, Jim_StrDup("("));
6359 case JIM_TT_SUBEXPR_END:
6362 while(Jim_StackLen(&stack)) {
6363 char *opstr = Jim_StackPop(&stack);
6364 if (!strcmp(opstr, "(")) {
6369 op = JimExprOperatorInfo(opstr);
6370 ExprObjAddInstr(interp, expr, op->opcode, opstr, -1);
6373 Jim_SetResultString(interp,
6374 "Unexpected close parenthesis", -1);
6381 Jim_Panic(interp,"Default reached in SetExprFromAny()");
6385 while (Jim_StackLen(&stack)) {
6386 char *opstr = Jim_StackPop(&stack);
6387 op = JimExprOperatorInfo(opstr);
6388 if (op == NULL && !strcmp(opstr, "(")) {
6390 Jim_SetResultString(interp, "Missing close parenthesis", -1);
6393 ExprObjAddInstr(interp, expr, op->opcode, opstr, -1);
6395 /* Check program correctness. */
6396 if (ExprCheckCorrectness(expr) != JIM_OK) {
6397 Jim_SetResultString(interp, "Invalid expression", -1);
6401 /* Free the stack used for the compilation. */
6402 Jim_FreeStackElements(&stack, Jim_Free);
6403 Jim_FreeStack(&stack);
6405 /* Convert || and && operators in unary |L |R and &L &R for lazyness */
6406 ExprMakeLazy(interp, expr);
6408 /* Perform literal sharing */
6409 if (shareLiterals && interp->framePtr->procBodyObjPtr) {
6410 Jim_Obj *bodyObjPtr = interp->framePtr->procBodyObjPtr;
6411 if (bodyObjPtr->typePtr == &scriptObjType) {
6412 ScriptObj *bodyScript = bodyObjPtr->internalRep.ptr;
6413 ExprShareLiterals(interp, expr, bodyScript);
6417 /* Free the old internal rep and set the new one. */
6418 Jim_FreeIntRep(interp, objPtr);
6419 Jim_SetIntRepPtr(objPtr, expr);
6420 objPtr->typePtr = &exprObjType;
6423 err: /* we jump here on syntax/compile errors. */
6424 Jim_FreeStackElements(&stack, Jim_Free);
6425 Jim_FreeStack(&stack);
6426 Jim_Free(expr->opcode);
6427 for (i = 0; i < expr->len; i++) {
6428 Jim_DecrRefCount(interp,expr->obj[i]);
6430 Jim_Free(expr->obj);
6435 ExprByteCode *Jim_GetExpression(Jim_Interp *interp, Jim_Obj *objPtr)
6437 if (objPtr->typePtr != &exprObjType) {
6438 if (SetExprFromAny(interp, objPtr) != JIM_OK)
6441 return (ExprByteCode*) Jim_GetIntRepPtr(objPtr);
6444 /* -----------------------------------------------------------------------------
6445 * Expressions evaluation.
6446 * Jim uses a specialized stack-based virtual machine for expressions,
6447 * that takes advantage of the fact that expr's operators
6448 * can't be redefined.
6450 * Jim_EvalExpression() uses the bytecode compiled by
6451 * SetExprFromAny() method of the "expression" object.
6453 * On success a Tcl Object containing the result of the evaluation
6454 * is stored into expResultPtrPtr (having refcount of 1), and JIM_OK is
6456 * On error the function returns a retcode != to JIM_OK and set a suitable
6457 * error on the interp.
6458 * ---------------------------------------------------------------------------*/
6459 #define JIM_EE_STATICSTACK_LEN 10
6461 int Jim_EvalExpression(Jim_Interp *interp, Jim_Obj *exprObjPtr,
6462 Jim_Obj **exprResultPtrPtr)
6465 Jim_Obj **stack, *staticStack[JIM_EE_STATICSTACK_LEN];
6466 int stacklen = 0, i, error = 0, errRetCode = JIM_ERR;
6468 Jim_IncrRefCount(exprObjPtr);
6469 expr = Jim_GetExpression(interp, exprObjPtr);
6471 Jim_DecrRefCount(interp, exprObjPtr);
6472 return JIM_ERR; /* error in expression. */
6474 /* In order to avoid that the internal repr gets freed due to
6475 * shimmering of the exprObjPtr's object, we make the internal rep
6479 /* The stack-based expr VM itself */
6481 /* Stack allocation. Expr programs have the feature that
6482 * a program of length N can't require a stack longer than
6484 if (expr->len > JIM_EE_STATICSTACK_LEN)
6485 stack = Jim_Alloc(sizeof(Jim_Obj*)*expr->len);
6487 stack = staticStack;
6489 /* Execute every istruction */
6490 for (i = 0; i < expr->len; i++) {
6491 Jim_Obj *A, *B, *objPtr;
6492 jim_wide wA, wB, wC;
6494 const char *sA, *sB;
6495 int Alen, Blen, retcode;
6496 int opcode = expr->opcode[i];
6498 if (opcode == JIM_EXPROP_NUMBER || opcode == JIM_EXPROP_STRING) {
6499 stack[stacklen++] = expr->obj[i];
6500 Jim_IncrRefCount(expr->obj[i]);
6501 } else if (opcode == JIM_EXPROP_VARIABLE) {
6502 objPtr = Jim_GetVariable(interp, expr->obj[i], JIM_ERRMSG);
6503 if (objPtr == NULL) {
6507 stack[stacklen++] = objPtr;
6508 Jim_IncrRefCount(objPtr);
6509 } else if (opcode == JIM_EXPROP_SUBST) {
6510 if ((retcode = Jim_SubstObj(interp, expr->obj[i],
6511 &objPtr, JIM_NONE)) != JIM_OK)
6514 errRetCode = retcode;
6517 stack[stacklen++] = objPtr;
6518 Jim_IncrRefCount(objPtr);
6519 } else if (opcode == JIM_EXPROP_DICTSUGAR) {
6520 objPtr = Jim_ExpandDictSugar(interp, expr->obj[i]);
6521 if (objPtr == NULL) {
6525 stack[stacklen++] = objPtr;
6526 Jim_IncrRefCount(objPtr);
6527 } else if (opcode == JIM_EXPROP_COMMAND) {
6528 if ((retcode = Jim_EvalObj(interp, expr->obj[i])) != JIM_OK) {
6530 errRetCode = retcode;
6533 stack[stacklen++] = interp->result;
6534 Jim_IncrRefCount(interp->result);
6535 } else if (opcode >= JIM_EXPROP_BINARY_NUM_FIRST &&
6536 opcode <= JIM_EXPROP_BINARY_NUM_LAST)
6538 /* Note that there isn't to increment the
6539 * refcount of objects. the references are moved
6540 * from stack to A and B. */
6541 B = stack[--stacklen];
6542 A = stack[--stacklen];
6544 /* --- Integer --- */
6545 if ((A->typePtr == &doubleObjType && !A->bytes) ||
6546 (B->typePtr == &doubleObjType && !B->bytes) ||
6547 JimGetWideNoErr(interp, A, &wA) != JIM_OK ||
6548 JimGetWideNoErr(interp, B, &wB) != JIM_OK) {
6551 Jim_DecrRefCount(interp, A);
6552 Jim_DecrRefCount(interp, B);
6553 switch(expr->opcode[i]) {
6554 case JIM_EXPROP_ADD: wC = wA+wB; break;
6555 case JIM_EXPROP_SUB: wC = wA-wB; break;
6556 case JIM_EXPROP_MUL: wC = wA*wB; break;
6557 case JIM_EXPROP_LT: wC = wA<wB; break;
6558 case JIM_EXPROP_GT: wC = wA>wB; break;
6559 case JIM_EXPROP_LTE: wC = wA<=wB; break;
6560 case JIM_EXPROP_GTE: wC = wA>=wB; break;
6561 case JIM_EXPROP_LSHIFT: wC = wA<<wB; break;
6562 case JIM_EXPROP_RSHIFT: wC = wA>>wB; break;
6563 case JIM_EXPROP_NUMEQ: wC = wA==wB; break;
6564 case JIM_EXPROP_NUMNE: wC = wA!=wB; break;
6565 case JIM_EXPROP_BITAND: wC = wA&wB; break;
6566 case JIM_EXPROP_BITXOR: wC = wA^wB; break;
6567 case JIM_EXPROP_BITOR: wC = wA|wB; break;
6568 case JIM_EXPROP_POW: wC = JimPowWide(wA,wB); break;
6569 case JIM_EXPROP_LOGICAND_LEFT:
6577 case JIM_EXPROP_LOGICOR_LEFT:
6585 case JIM_EXPROP_DIV:
6586 if (wB == 0) goto divbyzero;
6589 case JIM_EXPROP_MOD:
6590 if (wB == 0) goto divbyzero;
6593 case JIM_EXPROP_ROTL: {
6594 /* uint32_t would be better. But not everyone has inttypes.h?*/
6595 unsigned long uA = (unsigned long)wA;
6597 wC = _rotl(uA,(unsigned long)wB);
6599 const unsigned int S = sizeof(unsigned long) * 8;
6600 wC = (unsigned long)((uA<<wB)|(uA>>(S-wB)));
6604 case JIM_EXPROP_ROTR: {
6605 unsigned long uA = (unsigned long)wA;
6607 wC = _rotr(uA,(unsigned long)wB);
6609 const unsigned int S = sizeof(unsigned long) * 8;
6610 wC = (unsigned long)((uA>>wB)|(uA<<(S-wB)));
6616 wC = 0; /* avoid gcc warning */
6619 stack[stacklen] = Jim_NewIntObj(interp, wC);
6620 Jim_IncrRefCount(stack[stacklen]);
6624 /* --- Double --- */
6625 if (Jim_GetDouble(interp, A, &dA) != JIM_OK ||
6626 Jim_GetDouble(interp, B, &dB) != JIM_OK) {
6627 Jim_DecrRefCount(interp, A);
6628 Jim_DecrRefCount(interp, B);
6632 Jim_DecrRefCount(interp, A);
6633 Jim_DecrRefCount(interp, B);
6634 switch(expr->opcode[i]) {
6635 case JIM_EXPROP_ROTL:
6636 case JIM_EXPROP_ROTR:
6637 case JIM_EXPROP_LSHIFT:
6638 case JIM_EXPROP_RSHIFT:
6639 case JIM_EXPROP_BITAND:
6640 case JIM_EXPROP_BITXOR:
6641 case JIM_EXPROP_BITOR:
6642 case JIM_EXPROP_MOD:
6643 case JIM_EXPROP_POW:
6644 Jim_SetResultString(interp,
6645 "Got floating-point value where integer was expected", -1);
6649 case JIM_EXPROP_ADD: dC = dA+dB; break;
6650 case JIM_EXPROP_SUB: dC = dA-dB; break;
6651 case JIM_EXPROP_MUL: dC = dA*dB; break;
6652 case JIM_EXPROP_LT: dC = dA<dB; break;
6653 case JIM_EXPROP_GT: dC = dA>dB; break;
6654 case JIM_EXPROP_LTE: dC = dA<=dB; break;
6655 case JIM_EXPROP_GTE: dC = dA>=dB; break;
6656 case JIM_EXPROP_NUMEQ: dC = dA==dB; break;
6657 case JIM_EXPROP_NUMNE: dC = dA!=dB; break;
6658 case JIM_EXPROP_LOGICAND_LEFT:
6666 case JIM_EXPROP_LOGICOR_LEFT:
6674 case JIM_EXPROP_DIV:
6675 if (dB == 0) goto divbyzero;
6679 dC = 0; /* avoid gcc warning */
6682 stack[stacklen] = Jim_NewDoubleObj(interp, dC);
6683 Jim_IncrRefCount(stack[stacklen]);
6685 } else if (opcode == JIM_EXPROP_STREQ || opcode == JIM_EXPROP_STRNE) {
6686 B = stack[--stacklen];
6687 A = stack[--stacklen];
6688 sA = Jim_GetString(A, &Alen);
6689 sB = Jim_GetString(B, &Blen);
6690 switch(expr->opcode[i]) {
6691 case JIM_EXPROP_STREQ:
6692 if (Alen == Blen && memcmp(sA, sB, Alen) ==0)
6697 case JIM_EXPROP_STRNE:
6698 if (Alen != Blen || memcmp(sA, sB, Alen) != 0)
6704 wC = 0; /* avoid gcc warning */
6707 Jim_DecrRefCount(interp, A);
6708 Jim_DecrRefCount(interp, B);
6709 stack[stacklen] = Jim_NewIntObj(interp, wC);
6710 Jim_IncrRefCount(stack[stacklen]);
6712 } else if (opcode == JIM_EXPROP_NOT ||
6713 opcode == JIM_EXPROP_BITNOT ||
6714 opcode == JIM_EXPROP_LOGICAND_RIGHT ||
6715 opcode == JIM_EXPROP_LOGICOR_RIGHT) {
6716 /* Note that there isn't to increment the
6717 * refcount of objects. the references are moved
6718 * from stack to A and B. */
6719 A = stack[--stacklen];
6721 /* --- Integer --- */
6722 if ((A->typePtr == &doubleObjType && !A->bytes) ||
6723 JimGetWideNoErr(interp, A, &wA) != JIM_OK) {
6724 goto trydouble_unary;
6726 Jim_DecrRefCount(interp, A);
6727 switch(expr->opcode[i]) {
6728 case JIM_EXPROP_NOT: wC = !wA; break;
6729 case JIM_EXPROP_BITNOT: wC = ~wA; break;
6730 case JIM_EXPROP_LOGICAND_RIGHT:
6731 case JIM_EXPROP_LOGICOR_RIGHT: wC = (wA != 0); break;
6733 wC = 0; /* avoid gcc warning */
6736 stack[stacklen] = Jim_NewIntObj(interp, wC);
6737 Jim_IncrRefCount(stack[stacklen]);
6741 /* --- Double --- */
6742 if (Jim_GetDouble(interp, A, &dA) != JIM_OK) {
6743 Jim_DecrRefCount(interp, A);
6747 Jim_DecrRefCount(interp, A);
6748 switch(expr->opcode[i]) {
6749 case JIM_EXPROP_NOT: dC = !dA; break;
6750 case JIM_EXPROP_LOGICAND_RIGHT:
6751 case JIM_EXPROP_LOGICOR_RIGHT: dC = (dA != 0); break;
6752 case JIM_EXPROP_BITNOT:
6753 Jim_SetResultString(interp,
6754 "Got floating-point value where integer was expected", -1);
6759 dC = 0; /* avoid gcc warning */
6762 stack[stacklen] = Jim_NewDoubleObj(interp, dC);
6763 Jim_IncrRefCount(stack[stacklen]);
6766 Jim_Panic(interp,"Unknown opcode in Jim_EvalExpression");
6770 /* There is no need to decerement the inUse field because
6771 * this reference is transfered back into the exprObjPtr. */
6772 Jim_FreeIntRep(interp, exprObjPtr);
6773 exprObjPtr->typePtr = &exprObjType;
6774 Jim_SetIntRepPtr(exprObjPtr, expr);
6775 Jim_DecrRefCount(interp, exprObjPtr);
6777 *exprResultPtrPtr = stack[0];
6778 Jim_IncrRefCount(stack[0]);
6779 errRetCode = JIM_OK;
6781 for (i = 0; i < stacklen; i++) {
6782 Jim_DecrRefCount(interp, stack[i]);
6784 if (stack != staticStack)
6789 Jim_SetResultString(interp, "Division by zero", -1);
6793 int Jim_GetBoolFromExpr(Jim_Interp *interp, Jim_Obj *exprObjPtr, int *boolPtr)
6798 Jim_Obj *exprResultPtr;
6800 retcode = Jim_EvalExpression(interp, exprObjPtr, &exprResultPtr);
6801 if (retcode != JIM_OK)
6803 if (JimGetWideNoErr(interp, exprResultPtr, &wideValue) != JIM_OK) {
6804 if (Jim_GetDouble(interp, exprResultPtr, &doubleValue) != JIM_OK)
6806 Jim_DecrRefCount(interp, exprResultPtr);
6809 Jim_DecrRefCount(interp, exprResultPtr);
6810 *boolPtr = doubleValue != 0;
6814 Jim_DecrRefCount(interp, exprResultPtr);
6815 *boolPtr = wideValue != 0;
6819 /* -----------------------------------------------------------------------------
6820 * ScanFormat String Object
6821 * ---------------------------------------------------------------------------*/
6823 /* This Jim_Obj will held a parsed representation of a format string passed to
6824 * the Jim_ScanString command. For error diagnostics, the scanformat string has
6825 * to be parsed in its entirely first and then, if correct, can be used for
6826 * scanning. To avoid endless re-parsing, the parsed representation will be
6827 * stored in an internal representation and re-used for performance reason. */
6829 /* A ScanFmtPartDescr will held the information of /one/ part of the whole
6830 * scanformat string. This part will later be used to extract information
6831 * out from the string to be parsed by Jim_ScanString */
6833 typedef struct ScanFmtPartDescr {
6834 char type; /* Type of conversion (e.g. c, d, f) */
6835 char modifier; /* Modify type (e.g. l - long, h - short */
6836 size_t width; /* Maximal width of input to be converted */
6837 int pos; /* -1 - no assign, 0 - natural pos, >0 - XPG3 pos */
6838 char *arg; /* Specification of a CHARSET conversion */
6839 char *prefix; /* Prefix to be scanned literally before conversion */
6842 /* The ScanFmtStringObj will held the internal representation of a scanformat
6843 * string parsed and separated in part descriptions. Furthermore it contains
6844 * the original string representation of the scanformat string to allow for
6845 * fast update of the Jim_Obj's string representation part.
6847 * As add-on the internal object representation add some scratch pad area
6848 * for usage by Jim_ScanString to avoid endless allocating and freeing of
6849 * memory for purpose of string scanning.
6851 * The error member points to a static allocated string in case of a mal-
6852 * formed scanformat string or it contains '0' (NULL) in case of a valid
6853 * parse representation.
6855 * The whole memory of the internal representation is allocated as a single
6856 * area of memory that will be internally separated. So freeing and duplicating
6857 * of such an object is cheap */
6859 typedef struct ScanFmtStringObj {
6860 jim_wide size; /* Size of internal repr in bytes */
6861 char *stringRep; /* Original string representation */
6862 size_t count; /* Number of ScanFmtPartDescr contained */
6863 size_t convCount; /* Number of conversions that will assign */
6864 size_t maxPos; /* Max position index if XPG3 is used */
6865 const char *error; /* Ptr to error text (NULL if no error */
6866 char *scratch; /* Some scratch pad used by Jim_ScanString */
6867 ScanFmtPartDescr descr[1]; /* The vector of partial descriptions */
6871 static void FreeScanFmtInternalRep(Jim_Interp *interp, Jim_Obj *objPtr);
6872 static void DupScanFmtInternalRep(Jim_Interp *interp, Jim_Obj *srcPtr, Jim_Obj *dupPtr);
6873 static void UpdateStringOfScanFmt(Jim_Obj *objPtr);
6875 static Jim_ObjType scanFmtStringObjType = {
6877 FreeScanFmtInternalRep,
6878 DupScanFmtInternalRep,
6879 UpdateStringOfScanFmt,
6883 void FreeScanFmtInternalRep(Jim_Interp *interp, Jim_Obj *objPtr)
6885 JIM_NOTUSED(interp);
6886 Jim_Free((char*)objPtr->internalRep.ptr);
6887 objPtr->internalRep.ptr = 0;
6890 void DupScanFmtInternalRep(Jim_Interp *interp, Jim_Obj *srcPtr, Jim_Obj *dupPtr)
6892 size_t size = (size_t)((ScanFmtStringObj*)srcPtr->internalRep.ptr)->size;
6893 ScanFmtStringObj *newVec = (ScanFmtStringObj*)Jim_Alloc(size);
6895 JIM_NOTUSED(interp);
6896 memcpy(newVec, srcPtr->internalRep.ptr, size);
6897 dupPtr->internalRep.ptr = newVec;
6898 dupPtr->typePtr = &scanFmtStringObjType;
6901 void UpdateStringOfScanFmt(Jim_Obj *objPtr)
6903 char *bytes = ((ScanFmtStringObj*)objPtr->internalRep.ptr)->stringRep;
6905 objPtr->bytes = Jim_StrDup(bytes);
6906 objPtr->length = strlen(bytes);
6909 /* SetScanFmtFromAny will parse a given string and create the internal
6910 * representation of the format specification. In case of an error
6911 * the error data member of the internal representation will be set
6912 * to an descriptive error text and the function will be left with
6913 * JIM_ERR to indicate unsucessful parsing (aka. malformed scanformat
6916 static int SetScanFmtFromAny(Jim_Interp *interp, Jim_Obj *objPtr)
6918 ScanFmtStringObj *fmtObj;
6920 int maxCount, i, approxSize, lastPos = -1;
6921 const char *fmt = objPtr->bytes;
6922 int maxFmtLen = objPtr->length;
6923 const char *fmtEnd = fmt + maxFmtLen;
6926 Jim_FreeIntRep(interp, objPtr);
6927 /* Count how many conversions could take place maximally */
6928 for (i=0, maxCount=0; i < maxFmtLen; ++i)
6931 /* Calculate an approximation of the memory necessary */
6932 approxSize = sizeof(ScanFmtStringObj) /* Size of the container */
6933 + (maxCount + 1) * sizeof(ScanFmtPartDescr) /* Size of all partials */
6934 + maxFmtLen * sizeof(char) + 3 + 1 /* Scratch + "%n" + '\0' */
6935 + maxFmtLen * sizeof(char) + 1 /* Original stringrep */
6936 + maxFmtLen * sizeof(char) /* Arg for CHARSETs */
6937 + (maxCount +1) * sizeof(char) /* '\0' for every partial */
6938 + 1; /* safety byte */
6939 fmtObj = (ScanFmtStringObj*)Jim_Alloc(approxSize);
6940 memset(fmtObj, 0, approxSize);
6941 fmtObj->size = approxSize;
6943 fmtObj->scratch = (char*)&fmtObj->descr[maxCount+1];
6944 fmtObj->stringRep = fmtObj->scratch + maxFmtLen + 3 + 1;
6945 memcpy(fmtObj->stringRep, fmt, maxFmtLen);
6946 buffer = fmtObj->stringRep + maxFmtLen + 1;
6947 objPtr->internalRep.ptr = fmtObj;
6948 objPtr->typePtr = &scanFmtStringObjType;
6949 for (i=0, curr=0; fmt < fmtEnd; ++fmt) {
6951 ScanFmtPartDescr *descr = &fmtObj->descr[curr];
6953 descr->width = 0; /* Assume width unspecified */
6954 /* Overread and store any "literal" prefix */
6955 if (*fmt != '%' || fmt[1] == '%') {
6957 descr->prefix = &buffer[i];
6958 for (; fmt < fmtEnd; ++fmt) {
6960 if (fmt[1] != '%') break;
6967 /* Skip the conversion introducing '%' sign */
6969 /* End reached due to non-conversion literal only? */
6972 descr->pos = 0; /* Assume "natural" positioning */
6974 descr->pos = -1; /* Okay, conversion will not be assigned */
6977 fmtObj->convCount++; /* Otherwise count as assign-conversion */
6978 /* Check if next token is a number (could be width or pos */
6979 if (sscanf(fmt, "%d%n", &width, &skip) == 1) {
6981 /* Was the number a XPG3 position specifier? */
6982 if (descr->pos != -1 && *fmt == '$') {
6987 /* Look if "natural" postioning and XPG3 one was mixed */
6988 if ((lastPos == 0 && descr->pos > 0)
6989 || (lastPos > 0 && descr->pos == 0)) {
6990 fmtObj->error = "cannot mix \"%\" and \"%n$\" conversion specifiers";
6993 /* Look if this position was already used */
6994 for (prev=0; prev < curr; ++prev) {
6995 if (fmtObj->descr[prev].pos == -1) continue;
6996 if (fmtObj->descr[prev].pos == descr->pos) {
6997 fmtObj->error = "same \"%n$\" conversion specifier "
6998 "used more than once";
7002 /* Try to find a width after the XPG3 specifier */
7003 if (sscanf(fmt, "%d%n", &width, &skip) == 1) {
7004 descr->width = width;
7007 if (descr->pos > 0 && (size_t)descr->pos > fmtObj->maxPos)
7008 fmtObj->maxPos = descr->pos;
7010 /* Number was not a XPG3, so it has to be a width */
7011 descr->width = width;
7014 /* If positioning mode was undetermined yet, fix this */
7016 lastPos = descr->pos;
7017 /* Handle CHARSET conversion type ... */
7019 int swapped = 1, beg = i, end, j;
7021 descr->arg = &buffer[i];
7023 if (*fmt == '^') buffer[i++] = *fmt++;
7024 if (*fmt == ']') buffer[i++] = *fmt++;
7025 while (*fmt && *fmt != ']') buffer[i++] = *fmt++;
7027 fmtObj->error = "unmatched [ in format string";
7032 /* In case a range fence was given "backwards", swap it */
7035 for (j=beg+1; j < end-1; ++j) {
7036 if (buffer[j] == '-' && buffer[j-1] > buffer[j+1]) {
7037 char tmp = buffer[j-1];
7038 buffer[j-1] = buffer[j+1];
7045 /* Remember any valid modifier if given */
7046 if (strchr("hlL", *fmt) != 0)
7047 descr->modifier = tolower((int)*fmt++);
7050 if (strchr("efgcsndoxui", *fmt) == 0) {
7051 fmtObj->error = "bad scan conversion character";
7053 } else if (*fmt == 'c' && descr->width != 0) {
7054 fmtObj->error = "field width may not be specified in %c "
7057 } else if (*fmt == 'u' && descr->modifier == 'l') {
7058 fmtObj->error = "unsigned wide not supported";
7065 if (fmtObj->convCount == 0) {
7066 fmtObj->error = "no any conversion specifier given";
7072 /* Some accessor macros to allow lowlevel access to fields of internal repr */
7074 #define FormatGetCnvCount(_fo_) \
7075 ((ScanFmtStringObj*)((_fo_)->internalRep.ptr))->convCount
7076 #define FormatGetMaxPos(_fo_) \
7077 ((ScanFmtStringObj*)((_fo_)->internalRep.ptr))->maxPos
7078 #define FormatGetError(_fo_) \
7079 ((ScanFmtStringObj*)((_fo_)->internalRep.ptr))->error
7081 /* Some Bit testing/setting/cleaning routines. For now only used in handling
7082 * charsets ([a-z123]) within scanning. Later on perhaps a base for a
7083 * bitvector implementation in Jim? */
7085 static int JimTestBit(const char *bitvec, char ch)
7087 div_t pos = div(ch-1, 8);
7088 return bitvec[pos.quot] & (1 << pos.rem);
7091 static void JimSetBit(char *bitvec, char ch)
7093 div_t pos = div(ch-1, 8);
7094 bitvec[pos.quot] |= (1 << pos.rem);
7097 #if 0 /* currently not used */
7098 static void JimClearBit(char *bitvec, char ch)
7100 div_t pos = div(ch-1, 8);
7101 bitvec[pos.quot] &= ~(1 << pos.rem);
7105 /* JimScanAString is used to scan an unspecified string that ends with
7106 * next WS, or a string that is specified via a charset. The charset
7107 * is currently implemented in a way to only allow for usage with
7108 * ASCII. Whenever we will switch to UNICODE, another idea has to
7111 * FIXME: Works only with ASCII */
7114 JimScanAString(Jim_Interp *interp, const char *sdescr, const char *str)
7118 char charset[256/8+1]; /* A Charset may contain max 256 chars */
7119 char *buffer = Jim_Alloc(strlen(str)+1), *anchor = buffer;
7121 /* First init charset to nothing or all, depending if a specified
7122 * or an unspecified string has to be parsed */
7123 memset(charset, (sdescr ? 0 : 255), sizeof(charset));
7125 /* There was a set description given, that means we are parsing
7126 * a specified string. So we have to build a corresponding
7127 * charset reflecting the description */
7129 /* Should the set be negated at the end? */
7130 if (*sdescr == '^') {
7134 /* Here '-' is meant literally and not to define a range */
7135 if (*sdescr == '-') {
7136 JimSetBit(charset, '-');
7140 if (sdescr[1] == '-' && sdescr[2] != 0) {
7141 /* Handle range definitions */
7143 for (i=sdescr[0]; i <= sdescr[2]; ++i)
7144 JimSetBit(charset, i);
7147 /* Handle verbatim character definitions */
7148 JimSetBit(charset, *sdescr++);
7151 /* Negate the charset if there was a NOT given */
7152 for (i=0; notFlag && i < sizeof(charset); ++i)
7153 charset[i] = ~charset[i];
7155 /* And after all the mess above, the real work begin ... */
7156 while (str && *str) {
7157 if (!sdescr && isspace((int)*str))
7158 break; /* EOS via WS if unspecified */
7159 if (JimTestBit(charset, *str)) *buffer++ = *str++;
7160 else break; /* EOS via mismatch if specified scanning */
7162 *buffer = 0; /* Close the string properly ... */
7163 result = Jim_NewStringObj(interp, anchor, -1);
7164 Jim_Free(anchor); /* ... and free it afer usage */
7168 /* ScanOneEntry will scan one entry out of the string passed as argument.
7169 * It use the sscanf() function for this task. After extracting and
7170 * converting of the value, the count of scanned characters will be
7171 * returned of -1 in case of no conversion tool place and string was
7172 * already scanned thru */
7174 static int ScanOneEntry(Jim_Interp *interp, const char *str, long pos,
7175 ScanFmtStringObj *fmtObj, long index, Jim_Obj **valObjPtr)
7177 # define MAX_SIZE (sizeof(jim_wide) > sizeof(double) \
7178 ? sizeof(jim_wide) \
7180 char buffer[MAX_SIZE];
7181 char *value = buffer;
7183 const ScanFmtPartDescr *descr = &fmtObj->descr[index];
7184 size_t sLen = strlen(&str[pos]), scanned = 0;
7185 size_t anchor = pos;
7188 /* First pessimiticly assume, we will not scan anything :-) */
7190 if (descr->prefix) {
7191 /* There was a prefix given before the conversion, skip it and adjust
7192 * the string-to-be-parsed accordingly */
7193 for (i=0; str[pos] && descr->prefix[i]; ++i) {
7194 /* If prefix require, skip WS */
7195 if (isspace((int)descr->prefix[i]))
7196 while (str[pos] && isspace((int)str[pos])) ++pos;
7197 else if (descr->prefix[i] != str[pos])
7198 break; /* Prefix do not match here, leave the loop */
7200 ++pos; /* Prefix matched so far, next round */
7203 return -1; /* All of str consumed: EOF condition */
7204 else if (descr->prefix[i] != 0)
7205 return 0; /* Not whole prefix consumed, no conversion possible */
7207 /* For all but following conversion, skip leading WS */
7208 if (descr->type != 'c' && descr->type != '[' && descr->type != 'n')
7209 while (isspace((int)str[pos])) ++pos;
7210 /* Determine how much skipped/scanned so far */
7211 scanned = pos - anchor;
7212 if (descr->type == 'n') {
7213 /* Return pseudo conversion means: how much scanned so far? */
7214 *valObjPtr = Jim_NewIntObj(interp, anchor + scanned);
7215 } else if (str[pos] == 0) {
7216 /* Cannot scan anything, as str is totally consumed */
7219 /* Processing of conversions follows ... */
7220 if (descr->width > 0) {
7221 /* Do not try to scan as fas as possible but only the given width.
7222 * To ensure this, we copy the part that should be scanned. */
7223 size_t tLen = descr->width > sLen ? sLen : descr->width;
7224 tok = Jim_StrDupLen(&str[pos], tLen);
7226 /* As no width was given, simply refer to the original string */
7229 switch (descr->type) {
7231 *valObjPtr = Jim_NewIntObj(interp, *tok);
7234 case 'd': case 'o': case 'x': case 'u': case 'i': {
7235 char *endp; /* Position where the number finished */
7236 int base = descr->type == 'o' ? 8
7237 : descr->type == 'x' ? 16
7238 : descr->type == 'i' ? 0
7242 /* Try to scan a number with the given base */
7243 if (descr->modifier == 'l')
7244 #ifdef HAVE_LONG_LONG
7245 *(jim_wide*)value = JimStrtoll(tok, &endp, base);
7247 *(jim_wide*)value = strtol(tok, &endp, base);
7250 if (descr->type == 'u')
7251 *(long*)value = strtoul(tok, &endp, base);
7253 *(long*)value = strtol(tok, &endp, base);
7254 /* If scanning failed, and base was undetermined, simply
7255 * put it to 10 and try once more. This should catch the
7256 * case where %i begin to parse a number prefix (e.g.
7257 * '0x' but no further digits follows. This will be
7258 * handled as a ZERO followed by a char 'x' by Tcl */
7259 if (endp == tok && base == 0) base = 10;
7263 /* There was some number sucessfully scanned! */
7264 if (descr->modifier == 'l')
7265 *valObjPtr = Jim_NewIntObj(interp, *(jim_wide*)value);
7267 *valObjPtr = Jim_NewIntObj(interp, *(long*)value);
7268 /* Adjust the number-of-chars scanned so far */
7269 scanned += endp - tok;
7271 /* Nothing was scanned. We have to determine if this
7272 * happened due to e.g. prefix mismatch or input str
7274 scanned = *tok ? 0 : -1;
7278 case 's': case '[': {
7279 *valObjPtr = JimScanAString(interp, descr->arg, tok);
7280 scanned += Jim_Length(*valObjPtr);
7283 case 'e': case 'f': case 'g': {
7286 *(double*)value = strtod(tok, &endp);
7288 /* There was some number sucessfully scanned! */
7289 *valObjPtr = Jim_NewDoubleObj(interp, *(double*)value);
7290 /* Adjust the number-of-chars scanned so far */
7291 scanned += endp - tok;
7293 /* Nothing was scanned. We have to determine if this
7294 * happened due to e.g. prefix mismatch or input str
7296 scanned = *tok ? 0 : -1;
7301 /* If a substring was allocated (due to pre-defined width) do not
7302 * forget to free it */
7303 if (tok != &str[pos])
7304 Jim_Free((char*)tok);
7309 /* Jim_ScanString is the workhorse of string scanning. It will scan a given
7310 * string and returns all converted (and not ignored) values in a list back
7311 * to the caller. If an error occured, a NULL pointer will be returned */
7313 Jim_Obj *Jim_ScanString(Jim_Interp *interp, Jim_Obj *strObjPtr,
7314 Jim_Obj *fmtObjPtr, int flags)
7318 const char *str = Jim_GetString(strObjPtr, 0);
7319 Jim_Obj *resultList = 0;
7320 Jim_Obj **resultVec;
7322 Jim_Obj *emptyStr = 0;
7323 ScanFmtStringObj *fmtObj;
7325 /* If format specification is not an object, convert it! */
7326 if (fmtObjPtr->typePtr != &scanFmtStringObjType)
7327 SetScanFmtFromAny(interp, fmtObjPtr);
7328 fmtObj = (ScanFmtStringObj*)fmtObjPtr->internalRep.ptr;
7329 /* Check if format specification was valid */
7330 if (fmtObj->error != 0) {
7331 if (flags & JIM_ERRMSG)
7332 Jim_SetResultString(interp, fmtObj->error, -1);
7335 /* Allocate a new "shared" empty string for all unassigned conversions */
7336 emptyStr = Jim_NewEmptyStringObj(interp);
7337 Jim_IncrRefCount(emptyStr);
7338 /* Create a list and fill it with empty strings up to max specified XPG3 */
7339 resultList = Jim_NewListObj(interp, 0, 0);
7340 if (fmtObj->maxPos > 0) {
7341 for (i=0; i < fmtObj->maxPos; ++i)
7342 Jim_ListAppendElement(interp, resultList, emptyStr);
7343 JimListGetElements(interp, resultList, &resultc, &resultVec);
7345 /* Now handle every partial format description */
7346 for (i=0, pos=0; i < fmtObj->count; ++i) {
7347 ScanFmtPartDescr *descr = &(fmtObj->descr[i]);
7349 /* Only last type may be "literal" w/o conversion - skip it! */
7350 if (descr->type == 0) continue;
7351 /* As long as any conversion could be done, we will proceed */
7353 scanned = ScanOneEntry(interp, str, pos, fmtObj, i, &value);
7354 /* In case our first try results in EOF, we will leave */
7355 if (scanned == -1 && i == 0)
7357 /* Advance next pos-to-be-scanned for the amount scanned already */
7359 /* value == 0 means no conversion took place so take empty string */
7361 value = Jim_NewEmptyStringObj(interp);
7362 /* If value is a non-assignable one, skip it */
7363 if (descr->pos == -1) {
7364 Jim_FreeNewObj(interp, value);
7365 } else if (descr->pos == 0)
7366 /* Otherwise append it to the result list if no XPG3 was given */
7367 Jim_ListAppendElement(interp, resultList, value);
7368 else if (resultVec[descr->pos-1] == emptyStr) {
7369 /* But due to given XPG3, put the value into the corr. slot */
7370 Jim_DecrRefCount(interp, resultVec[descr->pos-1]);
7371 Jim_IncrRefCount(value);
7372 resultVec[descr->pos-1] = value;
7374 /* Otherwise, the slot was already used - free obj and ERROR */
7375 Jim_FreeNewObj(interp, value);
7379 Jim_DecrRefCount(interp, emptyStr);
7382 Jim_DecrRefCount(interp, emptyStr);
7383 Jim_FreeNewObj(interp, resultList);
7384 return (Jim_Obj*)EOF;
7386 Jim_DecrRefCount(interp, emptyStr);
7387 Jim_FreeNewObj(interp, resultList);
7391 /* -----------------------------------------------------------------------------
7392 * Pseudo Random Number Generation
7393 * ---------------------------------------------------------------------------*/
7394 static void JimPrngSeed(Jim_Interp *interp, const unsigned char *seed,
7397 /* Initialize the sbox with the numbers from 0 to 255 */
7398 static void JimPrngInit(Jim_Interp *interp)
7401 unsigned int seed[256];
7403 interp->prngState = Jim_Alloc(sizeof(Jim_PrngState));
7404 for (i = 0; i < 256; i++)
7405 seed[i] = (rand() ^ time(NULL) ^ clock());
7406 JimPrngSeed(interp, (unsigned char*) seed, sizeof(int)*256);
7409 /* Generates N bytes of random data */
7410 static void JimRandomBytes(Jim_Interp *interp, void *dest, unsigned int len)
7412 Jim_PrngState *prng;
7413 unsigned char *destByte = (unsigned char*) dest;
7414 unsigned int si, sj, x;
7416 /* initialization, only needed the first time */
7417 if (interp->prngState == NULL)
7418 JimPrngInit(interp);
7419 prng = interp->prngState;
7420 /* generates 'len' bytes of pseudo-random numbers */
7421 for (x = 0; x < len; x++) {
7422 prng->i = (prng->i+1) & 0xff;
7423 si = prng->sbox[prng->i];
7424 prng->j = (prng->j + si) & 0xff;
7425 sj = prng->sbox[prng->j];
7426 prng->sbox[prng->i] = sj;
7427 prng->sbox[prng->j] = si;
7428 *destByte++ = prng->sbox[(si+sj)&0xff];
7432 /* Re-seed the generator with user-provided bytes */
7433 static void JimPrngSeed(Jim_Interp *interp, const unsigned char *seed,
7437 unsigned char buf[256];
7438 Jim_PrngState *prng;
7440 /* initialization, only needed the first time */
7441 if (interp->prngState == NULL)
7442 JimPrngInit(interp);
7443 prng = interp->prngState;
7445 /* Set the sbox[i] with i */
7446 for (i = 0; i < 256; i++)
7448 /* Now use the seed to perform a random permutation of the sbox */
7449 for (i = 0; i < seedLen; i++) {
7452 t = prng->sbox[i&0xFF];
7453 prng->sbox[i&0xFF] = prng->sbox[seed[i]];
7454 prng->sbox[seed[i]] = t;
7456 prng->i = prng->j = 0;
7457 /* discard the first 256 bytes of stream. */
7458 JimRandomBytes(interp, buf, 256);
7461 /* -----------------------------------------------------------------------------
7462 * Dynamic libraries support (WIN32 not supported)
7463 * ---------------------------------------------------------------------------*/
7468 void * dlopen(const char *path, int mode)
7472 return (void *)LoadLibraryA(path);
7474 int dlclose(void *handle)
7476 FreeLibrary((HANDLE)handle);
7479 void *dlsym(void *handle, const char *symbol)
7481 return GetProcAddress((HMODULE)handle, symbol);
7483 static char win32_dlerror_string[121];
7484 const char *dlerror()
7486 FormatMessageA(FORMAT_MESSAGE_FROM_SYSTEM, NULL, GetLastError(),
7487 LANG_NEUTRAL, win32_dlerror_string, 120, NULL);
7488 return win32_dlerror_string;
7492 int Jim_LoadLibrary(Jim_Interp *interp, const char *pathName)
7494 Jim_Obj *libPathObjPtr;
7497 int (*onload)(Jim_Interp *interp);
7499 libPathObjPtr = Jim_GetGlobalVariableStr(interp, "jim_libpath", JIM_NONE);
7500 if (libPathObjPtr == NULL) {
7502 libPathObjPtr = NULL;
7504 Jim_IncrRefCount(libPathObjPtr);
7505 Jim_ListLength(interp, libPathObjPtr, &prefixc);
7508 for (i = -1; i < prefixc; i++) {
7510 handle = dlopen(pathName, RTLD_LAZY);
7513 char buf[JIM_PATH_LEN];
7516 Jim_Obj *prefixObjPtr;
7519 if (Jim_ListIndex(interp, libPathObjPtr, i,
7520 &prefixObjPtr, JIM_NONE) != JIM_OK)
7522 prefix = Jim_GetString(prefixObjPtr, NULL);
7523 prefixlen = strlen(prefix);
7524 if (prefixlen+strlen(pathName)+1 >= JIM_PATH_LEN)
7526 if (prefixlen && prefix[prefixlen-1] == '/')
7527 sprintf(buf, "%s%s", prefix, pathName);
7529 sprintf(buf, "%s/%s", prefix, pathName);
7530 fp = fopen(buf, "r");
7534 handle = dlopen(buf, RTLD_LAZY);
7536 if (handle == NULL) {
7537 Jim_SetResult(interp, Jim_NewEmptyStringObj(interp));
7538 Jim_AppendStrings(interp, Jim_GetResult(interp),
7539 "error loading extension \"", pathName,
7540 "\": ", dlerror(), NULL);
7545 if ((onload = dlsym(handle, "Jim_OnLoad")) == NULL) {
7546 Jim_SetResultString(interp,
7547 "No Jim_OnLoad symbol found on extension", -1);
7550 if (onload(interp) == JIM_ERR) {
7554 Jim_SetEmptyResult(interp);
7555 if (libPathObjPtr != NULL)
7556 Jim_DecrRefCount(interp, libPathObjPtr);
7560 if (libPathObjPtr != NULL)
7561 Jim_DecrRefCount(interp, libPathObjPtr);
7564 #else /* JIM_DYNLIB */
7565 int Jim_LoadLibrary(Jim_Interp *interp, const char *pathName)
7567 JIM_NOTUSED(interp);
7568 JIM_NOTUSED(pathName);
7570 Jim_SetResultString(interp, "the Jim binary has no support for [load]", -1);
7573 #endif/* JIM_DYNLIB */
7575 /* -----------------------------------------------------------------------------
7577 * ---------------------------------------------------------------------------*/
7579 #define JIM_PKG_ANY_VERSION -1
7581 /* Convert a string of the type "1.2" into an integer.
7582 * MAJOR.MINOR is converted as MAJOR*100+MINOR, so "1.2" is converted
7583 * to the integer with value 102 */
7584 static int JimPackageVersionToInt(Jim_Interp *interp, const char *v,
7585 int *intPtr, int flags)
7588 jim_wide major, minor;
7589 char *majorStr, *minorStr, *p;
7592 *intPtr = JIM_PKG_ANY_VERSION;
7596 copy = Jim_StrDup(v);
7597 p = strchr(copy, '.');
7598 if (p == NULL) goto badfmt;
7603 if (Jim_StringToWide(majorStr, &major, 10) != JIM_OK ||
7604 Jim_StringToWide(minorStr, &minor, 10) != JIM_OK)
7606 *intPtr = (int)(major*100+minor);
7612 if (flags & JIM_ERRMSG) {
7613 Jim_SetResult(interp, Jim_NewEmptyStringObj(interp));
7614 Jim_AppendStrings(interp, Jim_GetResult(interp),
7615 "invalid package version '", v, "'", NULL);
7620 #define JIM_MATCHVER_EXACT (1<<JIM_PRIV_FLAG_SHIFT)
7621 static int JimPackageMatchVersion(int needed, int actual, int flags)
7623 if (needed == JIM_PKG_ANY_VERSION) return 1;
7624 if (flags & JIM_MATCHVER_EXACT) {
7625 return needed == actual;
7627 return needed/100 == actual/100 && (needed <= actual);
7631 int Jim_PackageProvide(Jim_Interp *interp, const char *name, const char *ver,
7635 /* Check if the version format is ok */
7636 if (JimPackageVersionToInt(interp, ver, &intVersion, JIM_ERRMSG) != JIM_OK)
7638 /* If the package was already provided returns an error. */
7639 if (Jim_FindHashEntry(&interp->packages, name) != NULL) {
7640 if (flags & JIM_ERRMSG) {
7641 Jim_SetResult(interp, Jim_NewEmptyStringObj(interp));
7642 Jim_AppendStrings(interp, Jim_GetResult(interp),
7643 "package '", name, "' was already provided", NULL);
7647 Jim_AddHashEntry(&interp->packages, name, (char*) ver);
7654 # include <sys/types.h>
7655 # include <dirent.h>
7658 /* Posix dirent.h compatiblity layer for WIN32.
7659 * Copyright Kevlin Henney, 1997, 2003. All rights reserved.
7660 * Copyright Salvatore Sanfilippo ,2005.
7662 * Permission to use, copy, modify, and distribute this software and its
7663 * documentation for any purpose is hereby granted without fee, provided
7664 * that this copyright and permissions notice appear in all copies and
7667 * This software is supplied "as is" without express or implied warranty.
7668 * This software was modified by Salvatore Sanfilippo for the Jim Interpreter.
7675 typedef struct DIR {
7676 long handle; /* -1 for failed rewind */
7677 struct _finddata_t info;
7678 struct dirent result; /* d_name null iff first time */
7679 char *name; /* null-terminated char string */
7682 DIR *opendir(const char *name)
7686 if(name && name[0]) {
7687 size_t base_length = strlen(name);
7688 const char *all = /* search pattern must end with suitable wildcard */
7689 strchr("/\\", name[base_length - 1]) ? "*" : "/*";
7691 if((dir = (DIR *) Jim_Alloc(sizeof *dir)) != 0 &&
7692 (dir->name = (char *) Jim_Alloc(base_length + strlen(all) + 1)) != 0)
7694 strcat(strcpy(dir->name, name), all);
7696 if((dir->handle = (long) _findfirst(dir->name, &dir->info)) != -1)
7697 dir->result.d_name = 0;
7698 else { /* rollback */
7699 Jim_Free(dir->name);
7703 } else { /* rollback */
7714 int closedir(DIR *dir)
7719 if(dir->handle != -1)
7720 result = _findclose(dir->handle);
7721 Jim_Free(dir->name);
7724 if(result == -1) /* map all errors to EBADF */
7729 struct dirent *readdir(DIR *dir)
7731 struct dirent *result = 0;
7733 if(dir && dir->handle != -1) {
7734 if(!dir->result.d_name || _findnext(dir->handle, &dir->info) != -1) {
7735 result = &dir->result;
7736 result->d_name = dir->info.name;
7746 static char *JimFindBestPackage(Jim_Interp *interp, char **prefixes,
7747 int prefixc, const char *pkgName, int pkgVer, int flags)
7749 int bestVer = -1, i;
7750 int pkgNameLen = strlen(pkgName);
7751 char *bestPackage = NULL;
7754 for (i = 0; i < prefixc; i++) {
7756 char buf[JIM_PATH_LEN];
7759 if (prefixes[i] == NULL) continue;
7760 strncpy(buf, prefixes[i], JIM_PATH_LEN);
7761 buf[JIM_PATH_LEN-1] = '\0';
7762 prefixLen = strlen(buf);
7763 if (prefixLen && buf[prefixLen-1] == '/')
7764 buf[prefixLen-1] = '\0';
7766 if ((dir = opendir(buf)) == NULL) continue;
7767 while ((de = readdir(dir)) != NULL) {
7768 char *fileName = de->d_name;
7769 int fileNameLen = strlen(fileName);
7771 if (strncmp(fileName, "jim-", 4) == 0 &&
7772 strncmp(fileName+4, pkgName, pkgNameLen) == 0 &&
7773 *(fileName+4+pkgNameLen) == '-' &&
7774 fileNameLen > 4 && /* note that this is not really useful */
7775 (strncmp(fileName+fileNameLen-4, ".tcl", 4) == 0 ||
7776 strncmp(fileName+fileNameLen-4, ".dll", 4) == 0 ||
7777 strncmp(fileName+fileNameLen-3, ".so", 3) == 0))
7779 char ver[6]; /* xx.yy<nulterm> */
7780 char *p = strrchr(fileName, '.');
7781 int verLen, fileVer;
7783 verLen = p - (fileName+4+pkgNameLen+1);
7784 if (verLen < 3 || verLen > 5) continue;
7785 memcpy(ver, fileName+4+pkgNameLen+1, verLen);
7787 if (JimPackageVersionToInt(interp, ver, &fileVer, JIM_NONE)
7788 != JIM_OK) continue;
7789 if (JimPackageMatchVersion(pkgVer, fileVer, flags) &&
7790 (bestVer == -1 || bestVer < fileVer))
7793 Jim_Free(bestPackage);
7794 bestPackage = Jim_Alloc(strlen(buf)+strlen(fileName)+2);
7795 sprintf(bestPackage, "%s/%s", buf, fileName);
7804 #else /* JIM_ANSIC */
7806 static char *JimFindBestPackage(Jim_Interp *interp, char **prefixes,
7807 int prefixc, const char *pkgName, int pkgVer, int flags)
7809 JIM_NOTUSED(interp);
7810 JIM_NOTUSED(prefixes);
7811 JIM_NOTUSED(prefixc);
7812 JIM_NOTUSED(pkgName);
7813 JIM_NOTUSED(pkgVer);
7818 #endif /* JIM_ANSIC */
7820 /* Search for a suitable package under every dir specified by jim_libpath
7821 * and load it if possible. If a suitable package was loaded with success
7822 * JIM_OK is returned, otherwise JIM_ERR is returned. */
7823 static int JimLoadPackage(Jim_Interp *interp, const char *name, int ver,
7826 Jim_Obj *libPathObjPtr;
7827 char **prefixes, *best;
7828 int prefixc, i, retCode = JIM_OK;
7830 libPathObjPtr = Jim_GetGlobalVariableStr(interp, "jim_libpath", JIM_NONE);
7831 if (libPathObjPtr == NULL) {
7833 libPathObjPtr = NULL;
7835 Jim_IncrRefCount(libPathObjPtr);
7836 Jim_ListLength(interp, libPathObjPtr, &prefixc);
7839 prefixes = Jim_Alloc(sizeof(char*)*prefixc);
7840 for (i = 0; i < prefixc; i++) {
7841 Jim_Obj *prefixObjPtr;
7842 if (Jim_ListIndex(interp, libPathObjPtr, i,
7843 &prefixObjPtr, JIM_NONE) != JIM_OK)
7848 prefixes[i] = Jim_StrDup(Jim_GetString(prefixObjPtr, NULL));
7850 /* Scan every directory to find the "best" package. */
7851 best = JimFindBestPackage(interp, prefixes, prefixc, name, ver, flags);
7853 char *p = strrchr(best, '.');
7854 /* Try to load/source it */
7855 if (p && strcmp(p, ".tcl") == 0) {
7856 retCode = Jim_EvalFile(interp, best);
7858 retCode = Jim_LoadLibrary(interp, best);
7864 for (i = 0; i < prefixc; i++)
7865 Jim_Free(prefixes[i]);
7868 Jim_DecrRefCount(interp, libPathObjPtr);
7872 const char *Jim_PackageRequire(Jim_Interp *interp, const char *name,
7873 const char *ver, int flags)
7878 if (JimPackageVersionToInt(interp, ver, &requiredVer, JIM_ERRMSG) != JIM_OK)
7880 he = Jim_FindHashEntry(&interp->packages, name);
7882 /* Try to load the package. */
7883 if (JimLoadPackage(interp, name, requiredVer, flags) == JIM_OK) {
7884 he = Jim_FindHashEntry(&interp->packages, name);
7890 /* No way... return an error. */
7891 if (flags & JIM_ERRMSG) {
7892 Jim_SetResult(interp, Jim_NewEmptyStringObj(interp));
7893 Jim_AppendStrings(interp, Jim_GetResult(interp),
7894 "Can't find package '", name, "'", NULL);
7899 if (JimPackageVersionToInt(interp, he->val, &actualVer, JIM_ERRMSG)
7904 /* Check if version matches. */
7905 if (JimPackageMatchVersion(requiredVer, actualVer, flags) == 0) {
7906 Jim_SetResult(interp, Jim_NewEmptyStringObj(interp));
7907 Jim_AppendStrings(interp, Jim_GetResult(interp),
7908 "Package '", name, "' already loaded, but with version ",
7916 /* -----------------------------------------------------------------------------
7918 * ---------------------------------------------------------------------------*/
7919 #define JIM_EVAL_SARGV_LEN 8 /* static arguments vector length */
7920 #define JIM_EVAL_SINTV_LEN 8 /* static interpolation vector length */
7922 static int JimCallProcedure(Jim_Interp *interp, Jim_Cmd *cmd, int argc,
7923 Jim_Obj *const *argv);
7925 /* Handle calls to the [unknown] command */
7926 static int JimUnknown(Jim_Interp *interp, int argc, Jim_Obj *const *argv)
7928 Jim_Obj **v, *sv[JIM_EVAL_SARGV_LEN];
7931 /* If the [unknown] command does not exists returns
7933 if (Jim_GetCommand(interp, interp->unknown, JIM_NONE) == NULL)
7936 /* The object interp->unknown just contains
7937 * the "unknown" string, it is used in order to
7938 * avoid to lookup the unknown command every time
7939 * but instread to cache the result. */
7940 if (argc+1 <= JIM_EVAL_SARGV_LEN)
7943 v = Jim_Alloc(sizeof(Jim_Obj*)*(argc+1));
7944 /* Make a copy of the arguments vector, but shifted on
7945 * the right of one position. The command name of the
7946 * command will be instead the first argument of the
7947 * [unknonw] call. */
7948 memcpy(v+1, argv, sizeof(Jim_Obj*)*argc);
7949 v[0] = interp->unknown;
7951 retCode = Jim_EvalObjVector(interp, argc+1, v);
7958 /* Eval the object vector 'objv' composed of 'objc' elements.
7959 * Every element is used as single argument.
7960 * Jim_EvalObj() will call this function every time its object
7961 * argument is of "list" type, with no string representation.
7963 * This is possible because the string representation of a
7964 * list object generated by the UpdateStringOfList is made
7965 * in a way that ensures that every list element is a different
7966 * command argument. */
7967 int Jim_EvalObjVector(Jim_Interp *interp, int objc, Jim_Obj *const *objv)
7972 /* Incr refcount of arguments. */
7973 for (i = 0; i < objc; i++)
7974 Jim_IncrRefCount(objv[i]);
7975 /* Command lookup */
7976 cmdPtr = Jim_GetCommand(interp, objv[0], JIM_ERRMSG);
7977 if (cmdPtr == NULL) {
7978 retcode = JimUnknown(interp, objc, objv);
7980 /* Call it -- Make sure result is an empty object. */
7981 Jim_SetEmptyResult(interp);
7982 if (cmdPtr->cmdProc) {
7983 interp->cmdPrivData = cmdPtr->privData;
7984 retcode = cmdPtr->cmdProc(interp, objc, objv);
7986 retcode = JimCallProcedure(interp, cmdPtr, objc, objv);
7987 if (retcode == JIM_ERR) {
7988 JimAppendStackTrace(interp,
7989 Jim_GetString(objv[0], NULL), "?", 1);
7993 /* Decr refcount of arguments and return the retcode */
7994 for (i = 0; i < objc; i++)
7995 Jim_DecrRefCount(interp, objv[i]);
7999 /* Interpolate the given tokens into a unique Jim_Obj returned by reference
8000 * via *objPtrPtr. This function is only called by Jim_EvalObj().
8001 * The returned object has refcount = 0. */
8002 int Jim_InterpolateTokens(Jim_Interp *interp, ScriptToken *token,
8003 int tokens, Jim_Obj **objPtrPtr)
8005 int totlen = 0, i, retcode;
8007 Jim_Obj *sintv[JIM_EVAL_SINTV_LEN];
8011 if (tokens <= JIM_EVAL_SINTV_LEN)
8014 intv = Jim_Alloc(sizeof(Jim_Obj*)*
8016 /* Compute every token forming the argument
8017 * in the intv objects vector. */
8018 for (i = 0; i < tokens; i++) {
8019 switch(token[i].type) {
8022 intv[i] = token[i].objPtr;
8025 intv[i] = Jim_GetVariable(interp, token[i].objPtr, JIM_ERRMSG);
8031 case JIM_TT_DICTSUGAR:
8032 intv[i] = Jim_ExpandDictSugar(interp, token[i].objPtr);
8039 retcode = Jim_EvalObj(interp, token[i].objPtr);
8040 if (retcode != JIM_OK)
8042 intv[i] = Jim_GetResult(interp);
8046 "default token type reached "
8047 "in Jim_InterpolateTokens().");
8050 Jim_IncrRefCount(intv[i]);
8051 /* Make sure there is a valid
8052 * string rep, and add the string
8053 * length to the total legnth. */
8054 Jim_GetString(intv[i], NULL);
8055 totlen += intv[i]->length;
8057 /* Concatenate every token in an unique
8059 objPtr = Jim_NewStringObjNoAlloc(interp,
8061 s = objPtr->bytes = Jim_Alloc(totlen+1);
8062 objPtr->length = totlen;
8063 for (i = 0; i < tokens; i++) {
8064 memcpy(s, intv[i]->bytes, intv[i]->length);
8065 s += intv[i]->length;
8066 Jim_DecrRefCount(interp, intv[i]);
8068 objPtr->bytes[totlen] = '\0';
8069 /* Free the intv vector if not static. */
8070 if (tokens > JIM_EVAL_SINTV_LEN)
8072 *objPtrPtr = objPtr;
8077 Jim_DecrRefCount(interp, intv[i]);
8078 if (tokens > JIM_EVAL_SINTV_LEN)
8083 /* Helper of Jim_EvalObj() to perform argument expansion.
8084 * Basically this function append an argument to 'argv'
8085 * (and increments argc by reference accordingly), performing
8086 * expansion of the list object if 'expand' is non-zero, or
8087 * just adding objPtr to argv if 'expand' is zero. */
8088 void Jim_ExpandArgument(Jim_Interp *interp, Jim_Obj ***argv,
8089 int *argcPtr, int expand, Jim_Obj *objPtr)
8092 (*argv) = Jim_Realloc(*argv, sizeof(Jim_Obj*)*((*argcPtr)+1));
8093 /* refcount of objPtr not incremented because
8094 * we are actually transfering a reference from
8095 * the old 'argv' to the expanded one. */
8096 (*argv)[*argcPtr] = objPtr;
8101 Jim_ListLength(interp, objPtr, &len);
8102 (*argv) = Jim_Realloc(*argv, sizeof(Jim_Obj*)*((*argcPtr)+len));
8103 for (i = 0; i < len; i++) {
8104 (*argv)[*argcPtr] = objPtr->internalRep.listValue.ele[i];
8105 Jim_IncrRefCount(objPtr->internalRep.listValue.ele[i]);
8108 /* The original object reference is no longer needed,
8109 * after the expansion it is no longer present on
8110 * the argument vector, but the single elements are
8112 Jim_DecrRefCount(interp, objPtr);
8116 int Jim_EvalObj(Jim_Interp *interp, Jim_Obj *scriptObjPtr)
8121 int *cs; /* command structure array */
8122 int retcode = JIM_OK;
8123 Jim_Obj *sargv[JIM_EVAL_SARGV_LEN], **argv = NULL, *tmpObjPtr;
8125 interp->errorFlag = 0;
8127 /* If the object is of type "list" and there is no
8128 * string representation for this object, we can call
8129 * a specialized version of Jim_EvalObj() */
8130 if (scriptObjPtr->typePtr == &listObjType &&
8131 scriptObjPtr->internalRep.listValue.len &&
8132 scriptObjPtr->bytes == NULL) {
8133 Jim_IncrRefCount(scriptObjPtr);
8134 retcode = Jim_EvalObjVector(interp,
8135 scriptObjPtr->internalRep.listValue.len,
8136 scriptObjPtr->internalRep.listValue.ele);
8137 Jim_DecrRefCount(interp, scriptObjPtr);
8141 Jim_IncrRefCount(scriptObjPtr); /* Make sure it's shared. */
8142 script = Jim_GetScript(interp, scriptObjPtr);
8143 /* Now we have to make sure the internal repr will not be
8144 * freed on shimmering.
8146 * Think for example to this:
8148 * set x {llength $x; ... some more code ...}; eval $x
8150 * In order to preserve the internal rep, we increment the
8151 * inUse field of the script internal rep structure. */
8154 token = script->token;
8156 cs = script->cmdStruct;
8157 i = 0; /* 'i' is the current token index. */
8159 /* Reset the interpreter result. This is useful to
8160 * return the emtpy result in the case of empty program. */
8161 Jim_SetEmptyResult(interp);
8163 /* Execute every command sequentially, returns on
8164 * error (i.e. if a command does not return JIM_OK) */
8167 int argc = *cs++; /* Get the number of arguments */
8170 /* Set the expand flag if needed. */
8175 /* Allocate the arguments vector */
8176 if (argc <= JIM_EVAL_SARGV_LEN)
8179 argv = Jim_Alloc(sizeof(Jim_Obj*)*argc);
8180 /* Populate the arguments objects. */
8181 for (j = 0; j < argc; j++) {
8184 /* tokens is negative if expansion is needed.
8185 * for this argument. */
8187 tokens = (-tokens)-1;
8191 /* Fast path if the token does not
8192 * need interpolation */
8193 switch(token[i].type) {
8196 argv[j] = token[i].objPtr;
8199 tmpObjPtr = Jim_GetVariable(interp, token[i].objPtr,
8205 argv[j] = tmpObjPtr;
8207 case JIM_TT_DICTSUGAR:
8208 tmpObjPtr = Jim_ExpandDictSugar(interp, token[i].objPtr);
8213 argv[j] = tmpObjPtr;
8216 retcode = Jim_EvalObj(interp, token[i].objPtr);
8217 if (retcode != JIM_OK)
8219 argv[j] = Jim_GetResult(interp);
8223 "default token type reached "
8224 "in Jim_EvalObj().");
8227 Jim_IncrRefCount(argv[j]);
8230 /* For interpolation we call an helper
8231 * function doing the work for us. */
8232 if ((retcode = Jim_InterpolateTokens(interp,
8233 token+i, tokens, &tmpObjPtr)) != JIM_OK)
8237 argv[j] = tmpObjPtr;
8238 Jim_IncrRefCount(argv[j]);
8242 /* Handle {expand} expansion */
8244 int *ecs = cs - argc;
8246 Jim_Obj **eargv = NULL;
8248 for (j = 0; j < argc; j++) {
8249 Jim_ExpandArgument( interp, &eargv, &eargc,
8250 ecs[j] < 0, argv[j]);
8258 /* Nothing to do with zero args. */
8263 /* Lookup the command to call */
8264 cmd = Jim_GetCommand(interp, argv[0], JIM_ERRMSG);
8266 /* Call it -- Make sure result is an empty object. */
8267 Jim_SetEmptyResult(interp);
8269 interp->cmdPrivData = cmd->privData;
8270 retcode = cmd->cmdProc(interp, argc, argv);
8272 retcode = JimCallProcedure(interp, cmd, argc, argv);
8273 if (retcode == JIM_ERR) {
8274 JimAppendStackTrace(interp,
8275 Jim_GetString(argv[0], NULL), script->fileName,
8276 token[i-argc*2].linenr);
8280 /* Call [unknown] */
8281 retcode = JimUnknown(interp, argc, argv);
8283 if (retcode != JIM_OK) {
8284 i -= argc*2; /* point to the command name. */
8287 /* Decrement the arguments count */
8288 for (j = 0; j < argc; j++) {
8289 Jim_DecrRefCount(interp, argv[j]);
8292 if (argv != sargv) {
8297 /* Note that we don't have to decrement inUse, because the
8298 * following code transfers our use of the reference again to
8299 * the script object. */
8300 j = 0; /* on normal termination, the argv array is already
8301 Jim_DecrRefCount-ed. */
8303 /* Handle errors. */
8304 if (retcode == JIM_ERR && !interp->errorFlag) {
8305 interp->errorFlag = 1;
8306 JimSetErrorFileName(interp, script->fileName);
8307 JimSetErrorLineNumber(interp, token[i].linenr);
8308 JimResetStackTrace(interp);
8310 Jim_FreeIntRep(interp, scriptObjPtr);
8311 scriptObjPtr->typePtr = &scriptObjType;
8312 Jim_SetIntRepPtr(scriptObjPtr, script);
8313 Jim_DecrRefCount(interp, scriptObjPtr);
8314 for (i = 0; i < j; i++) {
8315 Jim_DecrRefCount(interp, argv[i]);
8322 /* Call a procedure implemented in Tcl.
8323 * It's possible to speed-up a lot this function, currently
8324 * the callframes are not cached, but allocated and
8325 * destroied every time. What is expecially costly is
8326 * to create/destroy the local vars hash table every time.
8328 * This can be fixed just implementing callframes caching
8329 * in JimCreateCallFrame() and JimFreeCallFrame(). */
8330 int JimCallProcedure(Jim_Interp *interp, Jim_Cmd *cmd, int argc,
8331 Jim_Obj *const *argv)
8334 Jim_CallFrame *callFramePtr;
8337 if (argc < cmd->arityMin || (cmd->arityMax != -1 &&
8338 argc > cmd->arityMax)) {
8339 Jim_Obj *objPtr = Jim_NewEmptyStringObj(interp);
8340 Jim_AppendStrings(interp, objPtr,
8341 "wrong # args: should be \"", Jim_GetString(argv[0], NULL),
8342 (cmd->arityMin > 1) ? " " : "",
8343 Jim_GetString(cmd->argListObjPtr, NULL), "\"", NULL);
8344 Jim_SetResult(interp, objPtr);
8347 /* Check if there are too nested calls */
8348 if (interp->numLevels == interp->maxNestingDepth) {
8349 Jim_SetResultString(interp,
8350 "Too many nested calls. Infinite recursion?", -1);
8353 /* Create a new callframe */
8354 callFramePtr = JimCreateCallFrame(interp);
8355 callFramePtr->parentCallFrame = interp->framePtr;
8356 callFramePtr->argv = argv;
8357 callFramePtr->argc = argc;
8358 callFramePtr->procArgsObjPtr = cmd->argListObjPtr;
8359 callFramePtr->procBodyObjPtr = cmd->bodyObjPtr;
8360 callFramePtr->staticVars = cmd->staticVars;
8361 Jim_IncrRefCount(cmd->argListObjPtr);
8362 Jim_IncrRefCount(cmd->bodyObjPtr);
8363 interp->framePtr = callFramePtr;
8364 interp->numLevels ++;
8366 for (i = 0; i < cmd->arityMin-1; i++) {
8369 Jim_ListIndex(interp, cmd->argListObjPtr, i, &objPtr, JIM_NONE);
8370 Jim_SetVariable(interp, objPtr, argv[i+1]);
8372 if (cmd->arityMax == -1) {
8373 Jim_Obj *listObjPtr, *objPtr;
8375 listObjPtr = Jim_NewListObj(interp, argv+cmd->arityMin,
8376 argc-cmd->arityMin);
8377 Jim_ListIndex(interp, cmd->argListObjPtr, i, &objPtr, JIM_NONE);
8378 Jim_SetVariable(interp, objPtr, listObjPtr);
8381 retcode = Jim_EvalObj(interp, cmd->bodyObjPtr);
8383 /* Destroy the callframe */
8384 interp->numLevels --;
8385 interp->framePtr = interp->framePtr->parentCallFrame;
8386 if (callFramePtr->vars.size != JIM_HT_INITIAL_SIZE) {
8387 JimFreeCallFrame(interp, callFramePtr, JIM_FCF_NONE);
8389 JimFreeCallFrame(interp, callFramePtr, JIM_FCF_NOHT);
8391 /* Handle the JIM_EVAL return code */
8392 if (retcode == JIM_EVAL && interp->evalRetcodeLevel != interp->numLevels) {
8393 int savedLevel = interp->evalRetcodeLevel;
8395 interp->evalRetcodeLevel = interp->numLevels;
8396 while (retcode == JIM_EVAL) {
8397 Jim_Obj *resultScriptObjPtr = Jim_GetResult(interp);
8398 Jim_IncrRefCount(resultScriptObjPtr);
8399 retcode = Jim_EvalObj(interp, resultScriptObjPtr);
8400 Jim_DecrRefCount(interp, resultScriptObjPtr);
8402 interp->evalRetcodeLevel = savedLevel;
8404 /* Handle the JIM_RETURN return code */
8405 if (retcode == JIM_RETURN) {
8406 retcode = interp->returnCode;
8407 interp->returnCode = JIM_OK;
8412 int Jim_Eval(Jim_Interp *interp, const char *script)
8414 Jim_Obj *scriptObjPtr = Jim_NewStringObj(interp, script, -1);
8417 Jim_IncrRefCount(scriptObjPtr);
8418 retval = Jim_EvalObj(interp, scriptObjPtr);
8419 Jim_DecrRefCount(interp, scriptObjPtr);
8423 /* Execute script in the scope of the global level */
8424 int Jim_EvalGlobal(Jim_Interp *interp, const char *script)
8426 Jim_CallFrame *savedFramePtr;
8429 savedFramePtr = interp->framePtr;
8430 interp->framePtr = interp->topFramePtr;
8431 retval = Jim_Eval(interp, script);
8432 interp->framePtr = savedFramePtr;
8436 int Jim_EvalObjBackground(Jim_Interp *interp, Jim_Obj *scriptObjPtr)
8438 Jim_CallFrame *savedFramePtr;
8441 savedFramePtr = interp->framePtr;
8442 interp->framePtr = interp->topFramePtr;
8443 retval = Jim_EvalObj(interp, scriptObjPtr);
8444 interp->framePtr = savedFramePtr;
8445 /* Try to report the error (if any) via the bgerror proc */
8446 if (retval != JIM_OK) {
8449 objv[0] = Jim_NewStringObj(interp, "bgerror", -1);
8450 objv[1] = Jim_GetResult(interp);
8451 Jim_IncrRefCount(objv[0]);
8452 Jim_IncrRefCount(objv[1]);
8453 if (Jim_EvalObjVector(interp, 2, objv) != JIM_OK) {
8454 /* Report the error to stderr. */
8455 fprintf(interp->stderr, "Background error:" JIM_NL);
8456 Jim_PrintErrorMessage(interp);
8458 Jim_DecrRefCount(interp, objv[0]);
8459 Jim_DecrRefCount(interp, objv[1]);
8464 int Jim_EvalFile(Jim_Interp *interp, const char *filename)
8468 int nread, totread, maxlen, buflen;
8470 Jim_Obj *scriptObjPtr;
8472 if ((fp = fopen(filename, "r")) == NULL) {
8473 Jim_SetResult(interp, Jim_NewEmptyStringObj(interp));
8474 Jim_AppendStrings(interp, Jim_GetResult(interp),
8475 "Error loading script \"", filename, "\": ",
8476 strerror(errno), NULL);
8480 maxlen = totread = 0;
8482 if (maxlen < totread+buflen+1) {
8483 maxlen = totread+buflen+1;
8484 prg = Jim_Realloc(prg, maxlen);
8486 if ((nread = fread(prg+totread, 1, buflen, fp)) == 0) break;
8489 prg[totread] = '\0';
8492 scriptObjPtr = Jim_NewStringObjNoAlloc(interp, prg, totread);
8493 JimSetSourceInfo(interp, scriptObjPtr, filename, 1);
8494 Jim_IncrRefCount(scriptObjPtr);
8495 retval = Jim_EvalObj(interp, scriptObjPtr);
8496 Jim_DecrRefCount(interp, scriptObjPtr);
8500 /* -----------------------------------------------------------------------------
8502 * ---------------------------------------------------------------------------*/
8503 static int JimParseSubstStr(struct JimParserCtx *pc)
8506 pc->tline = pc->linenr;
8507 while (*pc->p && *pc->p != '$' && *pc->p != '[') {
8511 pc->tt = JIM_TT_ESC;
8515 static int JimParseSubst(struct JimParserCtx *pc, int flags)
8520 pc->tstart = pc->tend = pc->p;
8521 pc->tline = pc->linenr;
8522 pc->tt = JIM_TT_EOL;
8528 retval = JimParseCmd(pc);
8529 if (flags & JIM_SUBST_NOCMD) {
8532 pc->tt = (flags & JIM_SUBST_NOESC) ?
8533 JIM_TT_STR : JIM_TT_ESC;
8538 if (JimParseVar(pc) == JIM_ERR) {
8539 pc->tstart = pc->tend = pc->p++; pc->len--;
8540 pc->tline = pc->linenr;
8541 pc->tt = JIM_TT_STR;
8543 if (flags & JIM_SUBST_NOVAR) {
8545 if (flags & JIM_SUBST_NOESC)
8546 pc->tt = JIM_TT_STR;
8548 pc->tt = JIM_TT_ESC;
8549 if (*pc->tstart == '{') {
8558 retval = JimParseSubstStr(pc);
8559 if (flags & JIM_SUBST_NOESC)
8560 pc->tt = JIM_TT_STR;
8567 /* The subst object type reuses most of the data structures and functions
8568 * of the script object. Script's data structures are a bit more complex
8569 * for what is needed for [subst]itution tasks, but the reuse helps to
8570 * deal with a single data structure at the cost of some more memory
8571 * usage for substitutions. */
8572 static Jim_ObjType substObjType = {
8574 FreeScriptInternalRep,
8575 DupScriptInternalRep,
8577 JIM_TYPE_REFERENCES,
8580 /* This method takes the string representation of an object
8581 * as a Tcl string where to perform [subst]itution, and generates
8582 * the pre-parsed internal representation. */
8583 int SetSubstFromAny(Jim_Interp *interp, struct Jim_Obj *objPtr, int flags)
8586 const char *scriptText = Jim_GetString(objPtr, &scriptTextLen);
8587 struct JimParserCtx parser;
8588 struct ScriptObj *script = Jim_Alloc(sizeof(*script));
8592 script->commands = 0;
8593 script->token = NULL;
8594 script->cmdStruct = NULL;
8596 script->substFlags = flags;
8597 script->fileName = NULL;
8599 JimParserInit(&parser, scriptText, scriptTextLen, 1);
8602 int len, type, linenr;
8604 JimParseSubst(&parser, flags);
8605 if (JimParserEof(&parser)) break;
8606 token = JimParserGetToken(&parser, &len, &type, &linenr);
8607 ScriptObjAddToken(interp, script, token, len, type,
8610 /* Free the old internal rep and set the new one. */
8611 Jim_FreeIntRep(interp, objPtr);
8612 Jim_SetIntRepPtr(objPtr, script);
8613 objPtr->typePtr = &scriptObjType;
8617 ScriptObj *Jim_GetSubst(Jim_Interp *interp, Jim_Obj *objPtr, int flags)
8619 struct ScriptObj *script = Jim_GetIntRepPtr(objPtr);
8621 if (objPtr->typePtr != &substObjType || script->substFlags != flags)
8622 SetSubstFromAny(interp, objPtr, flags);
8623 return (ScriptObj*) Jim_GetIntRepPtr(objPtr);
8626 /* Performs commands,variables,blackslashes substitution,
8627 * storing the result object (with refcount 0) into
8629 int Jim_SubstObj(Jim_Interp *interp, Jim_Obj *substObjPtr,
8630 Jim_Obj **resObjPtrPtr, int flags)
8634 int i, len, retcode = JIM_OK;
8635 Jim_Obj *resObjPtr, *savedResultObjPtr;
8637 script = Jim_GetSubst(interp, substObjPtr, flags);
8638 #ifdef JIM_OPTIMIZATION
8639 /* Fast path for a very common case with array-alike syntax,
8640 * that's: $foo($bar) */
8641 if (script->len == 1 && script->token[0].type == JIM_TT_VAR) {
8642 Jim_Obj *varObjPtr = script->token[0].objPtr;
8644 Jim_IncrRefCount(varObjPtr);
8645 resObjPtr = Jim_GetVariable(interp, varObjPtr, JIM_ERRMSG);
8646 if (resObjPtr == NULL) {
8647 Jim_DecrRefCount(interp, varObjPtr);
8650 Jim_DecrRefCount(interp, varObjPtr);
8651 *resObjPtrPtr = resObjPtr;
8656 Jim_IncrRefCount(substObjPtr); /* Make sure it's shared. */
8657 /* In order to preserve the internal rep, we increment the
8658 * inUse field of the script internal rep structure. */
8661 token = script->token;
8664 /* Save the interp old result, to set it again before
8666 savedResultObjPtr = interp->result;
8667 Jim_IncrRefCount(savedResultObjPtr);
8669 /* Perform the substitution. Starts with an empty object
8670 * and adds every token (performing the appropriate
8671 * var/command/escape substitution). */
8672 resObjPtr = Jim_NewStringObj(interp, "", 0);
8673 for (i = 0; i < len; i++) {
8676 switch(token[i].type) {
8679 Jim_AppendObj(interp, resObjPtr, token[i].objPtr);
8682 objPtr = Jim_GetVariable(interp, token[i].objPtr, JIM_ERRMSG);
8683 if (objPtr == NULL) goto err;
8684 Jim_IncrRefCount(objPtr);
8685 Jim_AppendObj(interp, resObjPtr, objPtr);
8686 Jim_DecrRefCount(interp, objPtr);
8689 if (Jim_EvalObj(interp, token[i].objPtr) != JIM_OK)
8691 Jim_AppendObj(interp, resObjPtr, interp->result);
8695 "default token type (%d) reached "
8696 "in Jim_SubstObj().", token[i].type);
8701 if (retcode == JIM_OK)
8702 Jim_SetResult(interp, savedResultObjPtr);
8703 Jim_DecrRefCount(interp, savedResultObjPtr);
8704 /* Note that we don't have to decrement inUse, because the
8705 * following code transfers our use of the reference again to
8706 * the script object. */
8707 Jim_FreeIntRep(interp, substObjPtr);
8708 substObjPtr->typePtr = &scriptObjType;
8709 Jim_SetIntRepPtr(substObjPtr, script);
8710 Jim_DecrRefCount(interp, substObjPtr);
8711 *resObjPtrPtr = resObjPtr;
8714 Jim_FreeNewObj(interp, resObjPtr);
8719 /* -----------------------------------------------------------------------------
8720 * API Input/Export functions
8721 * ---------------------------------------------------------------------------*/
8723 int Jim_GetApi(Jim_Interp *interp, const char *funcname, void *targetPtrPtr)
8727 he = Jim_FindHashEntry(&interp->stub, funcname);
8730 memcpy(targetPtrPtr, &he->val, sizeof(void*));
8734 int Jim_RegisterApi(Jim_Interp *interp, const char *funcname, void *funcptr)
8736 return Jim_AddHashEntry(&interp->stub, funcname, funcptr);
8739 #define JIM_REGISTER_API(name) \
8740 Jim_RegisterApi(interp, "Jim_" #name, (void *)Jim_ ## name)
8742 void JimRegisterCoreApi(Jim_Interp *interp)
8744 interp->getApiFuncPtr = Jim_GetApi;
8745 JIM_REGISTER_API(Alloc);
8746 JIM_REGISTER_API(Free);
8747 JIM_REGISTER_API(Eval);
8748 JIM_REGISTER_API(EvalGlobal);
8749 JIM_REGISTER_API(EvalFile);
8750 JIM_REGISTER_API(EvalObj);
8751 JIM_REGISTER_API(EvalObjBackground);
8752 JIM_REGISTER_API(EvalObjVector);
8753 JIM_REGISTER_API(InitHashTable);
8754 JIM_REGISTER_API(ExpandHashTable);
8755 JIM_REGISTER_API(AddHashEntry);
8756 JIM_REGISTER_API(ReplaceHashEntry);
8757 JIM_REGISTER_API(DeleteHashEntry);
8758 JIM_REGISTER_API(FreeHashTable);
8759 JIM_REGISTER_API(FindHashEntry);
8760 JIM_REGISTER_API(ResizeHashTable);
8761 JIM_REGISTER_API(GetHashTableIterator);
8762 JIM_REGISTER_API(NextHashEntry);
8763 JIM_REGISTER_API(NewObj);
8764 JIM_REGISTER_API(FreeObj);
8765 JIM_REGISTER_API(InvalidateStringRep);
8766 JIM_REGISTER_API(InitStringRep);
8767 JIM_REGISTER_API(DuplicateObj);
8768 JIM_REGISTER_API(GetString);
8769 JIM_REGISTER_API(Length);
8770 JIM_REGISTER_API(InvalidateStringRep);
8771 JIM_REGISTER_API(NewStringObj);
8772 JIM_REGISTER_API(NewStringObjNoAlloc);
8773 JIM_REGISTER_API(AppendString);
8774 JIM_REGISTER_API(AppendObj);
8775 JIM_REGISTER_API(AppendStrings);
8776 JIM_REGISTER_API(StringEqObj);
8777 JIM_REGISTER_API(StringMatchObj);
8778 JIM_REGISTER_API(StringRangeObj);
8779 JIM_REGISTER_API(FormatString);
8780 JIM_REGISTER_API(CompareStringImmediate);
8781 JIM_REGISTER_API(NewReference);
8782 JIM_REGISTER_API(GetReference);
8783 JIM_REGISTER_API(SetFinalizer);
8784 JIM_REGISTER_API(GetFinalizer);
8785 JIM_REGISTER_API(CreateInterp);
8786 JIM_REGISTER_API(FreeInterp);
8787 JIM_REGISTER_API(GetExitCode);
8788 JIM_REGISTER_API(SetStdin);
8789 JIM_REGISTER_API(SetStdout);
8790 JIM_REGISTER_API(SetStderr);
8791 JIM_REGISTER_API(CreateCommand);
8792 JIM_REGISTER_API(CreateProcedure);
8793 JIM_REGISTER_API(DeleteCommand);
8794 JIM_REGISTER_API(RenameCommand);
8795 JIM_REGISTER_API(GetCommand);
8796 JIM_REGISTER_API(SetVariable);
8797 JIM_REGISTER_API(SetVariableStr);
8798 JIM_REGISTER_API(SetGlobalVariableStr);
8799 JIM_REGISTER_API(SetVariableStrWithStr);
8800 JIM_REGISTER_API(SetVariableLink);
8801 JIM_REGISTER_API(GetVariable);
8802 JIM_REGISTER_API(GetCallFrameByLevel);
8803 JIM_REGISTER_API(Collect);
8804 JIM_REGISTER_API(CollectIfNeeded);
8805 JIM_REGISTER_API(GetIndex);
8806 JIM_REGISTER_API(NewListObj);
8807 JIM_REGISTER_API(ListAppendElement);
8808 JIM_REGISTER_API(ListAppendList);
8809 JIM_REGISTER_API(ListLength);
8810 JIM_REGISTER_API(ListIndex);
8811 JIM_REGISTER_API(SetListIndex);
8812 JIM_REGISTER_API(ConcatObj);
8813 JIM_REGISTER_API(NewDictObj);
8814 JIM_REGISTER_API(DictKey);
8815 JIM_REGISTER_API(DictKeysVector);
8816 JIM_REGISTER_API(GetIndex);
8817 JIM_REGISTER_API(GetReturnCode);
8818 JIM_REGISTER_API(EvalExpression);
8819 JIM_REGISTER_API(GetBoolFromExpr);
8820 JIM_REGISTER_API(GetWide);
8821 JIM_REGISTER_API(GetLong);
8822 JIM_REGISTER_API(SetWide);
8823 JIM_REGISTER_API(NewIntObj);
8824 JIM_REGISTER_API(GetDouble);
8825 JIM_REGISTER_API(SetDouble);
8826 JIM_REGISTER_API(NewDoubleObj);
8827 JIM_REGISTER_API(WrongNumArgs);
8828 JIM_REGISTER_API(SetDictKeysVector);
8829 JIM_REGISTER_API(SubstObj);
8830 JIM_REGISTER_API(RegisterApi);
8831 JIM_REGISTER_API(PrintErrorMessage);
8832 JIM_REGISTER_API(InteractivePrompt);
8833 JIM_REGISTER_API(RegisterCoreCommands);
8834 JIM_REGISTER_API(GetSharedString);
8835 JIM_REGISTER_API(ReleaseSharedString);
8836 JIM_REGISTER_API(Panic);
8837 JIM_REGISTER_API(StrDup);
8838 JIM_REGISTER_API(UnsetVariable);
8839 JIM_REGISTER_API(GetVariableStr);
8840 JIM_REGISTER_API(GetGlobalVariable);
8841 JIM_REGISTER_API(GetGlobalVariableStr);
8842 JIM_REGISTER_API(GetAssocData);
8843 JIM_REGISTER_API(SetAssocData);
8844 JIM_REGISTER_API(DeleteAssocData);
8845 JIM_REGISTER_API(GetEnum);
8846 JIM_REGISTER_API(ScriptIsComplete);
8847 JIM_REGISTER_API(PackageRequire);
8848 JIM_REGISTER_API(PackageProvide);
8849 JIM_REGISTER_API(InitStack);
8850 JIM_REGISTER_API(FreeStack);
8851 JIM_REGISTER_API(StackLen);
8852 JIM_REGISTER_API(StackPush);
8853 JIM_REGISTER_API(StackPop);
8854 JIM_REGISTER_API(StackPeek);
8855 JIM_REGISTER_API(FreeStackElements);
8858 /* -----------------------------------------------------------------------------
8859 * Core commands utility functions
8860 * ---------------------------------------------------------------------------*/
8861 void Jim_WrongNumArgs(Jim_Interp *interp, int argc, Jim_Obj *const *argv,
8865 Jim_Obj *objPtr = Jim_NewEmptyStringObj(interp);
8867 Jim_AppendString(interp, objPtr, "wrong # args: should be \"", -1);
8868 for (i = 0; i < argc; i++) {
8869 Jim_AppendObj(interp, objPtr, argv[i]);
8870 if (!(i+1 == argc && msg[0] == '\0'))
8871 Jim_AppendString(interp, objPtr, " ", 1);
8873 Jim_AppendString(interp, objPtr, msg, -1);
8874 Jim_AppendString(interp, objPtr, "\"", 1);
8875 Jim_SetResult(interp, objPtr);
8878 static Jim_Obj *JimCommandsList(Jim_Interp *interp, Jim_Obj *patternObjPtr)
8880 Jim_HashTableIterator *htiter;
8882 Jim_Obj *listObjPtr = Jim_NewListObj(interp, NULL, 0);
8883 const char *pattern;
8886 pattern = patternObjPtr ? Jim_GetString(patternObjPtr, &patternLen) : NULL;
8887 htiter = Jim_GetHashTableIterator(&interp->commands);
8888 while ((he = Jim_NextHashEntry(htiter)) != NULL) {
8889 if (pattern && !JimStringMatch(pattern, patternLen, he->key,
8890 strlen((const char*)he->key), 0))
8892 Jim_ListAppendElement(interp, listObjPtr,
8893 Jim_NewStringObj(interp, he->key, -1));
8895 Jim_FreeHashTableIterator(htiter);
8899 #define JIM_VARLIST_GLOBALS 0
8900 #define JIM_VARLIST_LOCALS 1
8901 #define JIM_VARLIST_VARS 2
8903 static Jim_Obj *JimVariablesList(Jim_Interp *interp, Jim_Obj *patternObjPtr,
8906 Jim_HashTableIterator *htiter;
8908 Jim_Obj *listObjPtr = Jim_NewListObj(interp, NULL, 0);
8909 const char *pattern;
8912 pattern = patternObjPtr ? Jim_GetString(patternObjPtr, &patternLen) : NULL;
8913 if (mode == JIM_VARLIST_GLOBALS) {
8914 htiter = Jim_GetHashTableIterator(&interp->topFramePtr->vars);
8916 /* For [info locals], if we are at top level an emtpy list
8917 * is returned. I don't agree, but we aim at compatibility (SS) */
8918 if (mode == JIM_VARLIST_LOCALS &&
8919 interp->framePtr == interp->topFramePtr)
8921 htiter = Jim_GetHashTableIterator(&interp->framePtr->vars);
8923 while ((he = Jim_NextHashEntry(htiter)) != NULL) {
8924 Jim_Var *varPtr = (Jim_Var*) he->val;
8925 if (mode == JIM_VARLIST_LOCALS) {
8926 if (varPtr->linkFramePtr != NULL)
8929 if (pattern && !JimStringMatch(pattern, patternLen, he->key,
8930 strlen((const char*)he->key), 0))
8932 Jim_ListAppendElement(interp, listObjPtr,
8933 Jim_NewStringObj(interp, he->key, -1));
8935 Jim_FreeHashTableIterator(htiter);
8939 static int JimInfoLevel(Jim_Interp *interp, Jim_Obj *levelObjPtr,
8940 Jim_Obj **objPtrPtr)
8942 Jim_CallFrame *targetCallFrame;
8944 if (JimGetCallFrameByInteger(interp, levelObjPtr, &targetCallFrame)
8947 /* No proc call at toplevel callframe */
8948 if (targetCallFrame == interp->topFramePtr) {
8949 Jim_SetResult(interp, Jim_NewEmptyStringObj(interp));
8950 Jim_AppendStrings(interp, Jim_GetResult(interp),
8952 Jim_GetString(levelObjPtr, NULL), "\"", NULL);
8955 *objPtrPtr = Jim_NewListObj(interp,
8956 targetCallFrame->argv,
8957 targetCallFrame->argc);
8961 /* -----------------------------------------------------------------------------
8963 * ---------------------------------------------------------------------------*/
8965 /* fake [puts] -- not the real puts, just for debugging. */
8966 static int Jim_PutsCoreCommand(Jim_Interp *interp, int argc,
8967 Jim_Obj *const *argv)
8970 int len, nonewline = 0;
8972 if (argc != 2 && argc != 3) {
8973 Jim_WrongNumArgs(interp, 1, argv, "-nonewline string");
8977 if (!Jim_CompareStringImmediate(interp, argv[1], "-nonewline"))
8979 Jim_SetResultString(interp, "The second argument must "
8980 "be -nonewline", -1);
8987 str = Jim_GetString(argv[1], &len);
8988 fwrite(str, 1, len, interp->stdout);
8989 if (!nonewline) fprintf(interp->stdout, JIM_NL);
8993 /* Helper for [+] and [*] */
8994 static int Jim_AddMulHelper(Jim_Interp *interp, int argc,
8995 Jim_Obj *const *argv, int op)
8997 jim_wide wideValue, res;
8998 double doubleValue, doubleRes;
9001 res = (op == JIM_EXPROP_ADD) ? 0 : 1;
9003 for (i = 1; i < argc; i++) {
9004 if (Jim_GetWide(interp, argv[i], &wideValue) != JIM_OK)
9006 if (op == JIM_EXPROP_ADD)
9011 Jim_SetResult(interp, Jim_NewIntObj(interp, res));
9014 doubleRes = (double) res;
9015 for (;i < argc; i++) {
9016 if (Jim_GetDouble(interp, argv[i], &doubleValue) != JIM_OK)
9018 if (op == JIM_EXPROP_ADD)
9019 doubleRes += doubleValue;
9021 doubleRes *= doubleValue;
9023 Jim_SetResult(interp, Jim_NewDoubleObj(interp, doubleRes));
9027 /* Helper for [-] and [/] */
9028 static int Jim_SubDivHelper(Jim_Interp *interp, int argc,
9029 Jim_Obj *const *argv, int op)
9031 jim_wide wideValue, res = 0;
9032 double doubleValue, doubleRes = 0;
9036 Jim_WrongNumArgs(interp, 1, argv, "number ?number ... number?");
9038 } else if (argc == 2) {
9039 /* The arity = 2 case is different. For [- x] returns -x,
9040 * while [/ x] returns 1/x. */
9041 if (Jim_GetWide(interp, argv[1], &wideValue) != JIM_OK) {
9042 if (Jim_GetDouble(interp, argv[1], &doubleValue) !=
9047 if (op == JIM_EXPROP_SUB)
9048 doubleRes = -doubleValue;
9050 doubleRes = 1.0/doubleValue;
9051 Jim_SetResult(interp, Jim_NewDoubleObj(interp,
9056 if (op == JIM_EXPROP_SUB) {
9058 Jim_SetResult(interp, Jim_NewIntObj(interp, res));
9060 doubleRes = 1.0/wideValue;
9061 Jim_SetResult(interp, Jim_NewDoubleObj(interp,
9066 if (Jim_GetWide(interp, argv[1], &res) != JIM_OK) {
9067 if (Jim_GetDouble(interp, argv[1], &doubleRes)
9075 for (i = 2; i < argc; i++) {
9076 if (Jim_GetWide(interp, argv[i], &wideValue) != JIM_OK) {
9077 doubleRes = (double) res;
9080 if (op == JIM_EXPROP_SUB)
9085 Jim_SetResult(interp, Jim_NewIntObj(interp, res));
9088 for (;i < argc; i++) {
9089 if (Jim_GetDouble(interp, argv[i], &doubleValue) != JIM_OK)
9091 if (op == JIM_EXPROP_SUB)
9092 doubleRes -= doubleValue;
9094 doubleRes /= doubleValue;
9096 Jim_SetResult(interp, Jim_NewDoubleObj(interp, doubleRes));
9102 static int Jim_AddCoreCommand(Jim_Interp *interp, int argc,
9103 Jim_Obj *const *argv)
9105 return Jim_AddMulHelper(interp, argc, argv, JIM_EXPROP_ADD);
9109 static int Jim_MulCoreCommand(Jim_Interp *interp, int argc,
9110 Jim_Obj *const *argv)
9112 return Jim_AddMulHelper(interp, argc, argv, JIM_EXPROP_MUL);
9116 static int Jim_SubCoreCommand(Jim_Interp *interp, int argc,
9117 Jim_Obj *const *argv)
9119 return Jim_SubDivHelper(interp, argc, argv, JIM_EXPROP_SUB);
9123 static int Jim_DivCoreCommand(Jim_Interp *interp, int argc,
9124 Jim_Obj *const *argv)
9126 return Jim_SubDivHelper(interp, argc, argv, JIM_EXPROP_DIV);
9130 static int Jim_SetCoreCommand(Jim_Interp *interp, int argc,
9131 Jim_Obj *const *argv)
9133 if (argc != 2 && argc != 3) {
9134 Jim_WrongNumArgs(interp, 1, argv, "varName ?newValue?");
9139 objPtr = Jim_GetVariable(interp, argv[1], JIM_ERRMSG);
9142 Jim_SetResult(interp, objPtr);
9145 /* argc == 3 case. */
9146 if (Jim_SetVariable(interp, argv[1], argv[2]) != JIM_OK)
9148 Jim_SetResult(interp, argv[2]);
9153 static int Jim_UnsetCoreCommand(Jim_Interp *interp, int argc,
9154 Jim_Obj *const *argv)
9159 Jim_WrongNumArgs(interp, 1, argv, "varName ?varName ...?");
9162 for (i = 1; i < argc; i++) {
9163 if (Jim_UnsetVariable(interp, argv[i], JIM_ERRMSG) != JIM_OK)
9170 static int Jim_IncrCoreCommand(Jim_Interp *interp, int argc,
9171 Jim_Obj *const *argv)
9173 jim_wide wideValue, increment = 1;
9176 if (argc != 2 && argc != 3) {
9177 Jim_WrongNumArgs(interp, 1, argv, "varName ?increment?");
9181 if (Jim_GetWide(interp, argv[2], &increment) != JIM_OK)
9184 intObjPtr = Jim_GetVariable(interp, argv[1], JIM_ERRMSG);
9185 if (!intObjPtr) return JIM_ERR;
9186 if (Jim_GetWide(interp, intObjPtr, &wideValue) != JIM_OK)
9188 if (Jim_IsShared(intObjPtr)) {
9189 intObjPtr = Jim_NewIntObj(interp, wideValue+increment);
9190 if (Jim_SetVariable(interp, argv[1], intObjPtr) != JIM_OK) {
9191 Jim_FreeNewObj(interp, intObjPtr);
9195 Jim_SetWide(interp, intObjPtr, wideValue+increment);
9196 /* The following step is required in order to invalidate the
9197 * string repr of "FOO" if the var name is on the form of "FOO(IDX)" */
9198 if (Jim_SetVariable(interp, argv[1], intObjPtr) != JIM_OK) {
9202 Jim_SetResult(interp, intObjPtr);
9207 static int Jim_WhileCoreCommand(Jim_Interp *interp, int argc,
9208 Jim_Obj *const *argv)
9211 Jim_WrongNumArgs(interp, 1, argv, "condition body");
9214 /* Try to run a specialized version of while if the expression
9215 * is in one of the following forms:
9217 * $a < CONST, $a < $b
9218 * $a <= CONST, $a <= $b
9219 * $a > CONST, $a > $b
9220 * $a >= CONST, $a >= $b
9221 * $a != CONST, $a != $b
9222 * $a == CONST, $a == $b
9228 #ifdef JIM_OPTIMIZATION
9231 Jim_Obj *varAObjPtr = NULL, *varBObjPtr = NULL, *objPtr;
9232 int exprLen, retval;
9234 /* STEP 1 -- Check if there are the conditions to run the specialized
9235 * version of while */
9237 if ((expr = Jim_GetExpression(interp, argv[1])) == NULL) goto noopt;
9238 if (expr->len <= 0 || expr->len > 3) goto noopt;
9241 if (expr->opcode[0] != JIM_EXPROP_VARIABLE &&
9242 expr->opcode[0] != JIM_EXPROP_NUMBER)
9246 if (expr->opcode[1] != JIM_EXPROP_NOT ||
9247 expr->opcode[0] != JIM_EXPROP_VARIABLE)
9251 if (expr->opcode[0] != JIM_EXPROP_VARIABLE ||
9252 (expr->opcode[1] != JIM_EXPROP_NUMBER &&
9253 expr->opcode[1] != JIM_EXPROP_VARIABLE))
9255 switch(expr->opcode[2]) {
9257 case JIM_EXPROP_LTE:
9259 case JIM_EXPROP_GTE:
9260 case JIM_EXPROP_NUMEQ:
9261 case JIM_EXPROP_NUMNE:
9270 "Unexpected default reached in Jim_WhileCoreCommand()");
9274 /* STEP 2 -- conditions meet. Initialization. Take different
9275 * branches for different expression lengths. */
9276 exprLen = expr->len;
9281 if (expr->opcode[0] == JIM_EXPROP_VARIABLE) {
9282 varAObjPtr = expr->obj[0];
9283 Jim_IncrRefCount(varAObjPtr);
9285 if (Jim_GetWide(interp, expr->obj[0], &wideValue) != JIM_OK)
9291 Jim_GetVariable(interp, varAObjPtr, JIM_NONE)) ||
9292 Jim_GetWide(interp, objPtr, &wideValue) != JIM_OK)
9294 Jim_DecrRefCount(interp, varAObjPtr);
9298 if (!wideValue) break;
9299 if ((retval = Jim_EvalObj(interp, argv[2])) != JIM_OK) {
9303 Jim_DecrRefCount(interp, varAObjPtr);
9311 Jim_DecrRefCount(interp, varAObjPtr);
9317 Jim_DecrRefCount(interp, varAObjPtr);
9318 } else if (exprLen == 3) {
9319 jim_wide wideValueA, wideValueB, cmpRes = 0;
9320 int cmpType = expr->opcode[2];
9322 varAObjPtr = expr->obj[0];
9323 Jim_IncrRefCount(varAObjPtr);
9324 if (expr->opcode[1] == JIM_EXPROP_VARIABLE) {
9325 varBObjPtr = expr->obj[1];
9326 Jim_IncrRefCount(varBObjPtr);
9328 if (Jim_GetWide(interp, expr->obj[1], &wideValueB) != JIM_OK)
9332 if (!(objPtr = Jim_GetVariable(interp, varAObjPtr, JIM_NONE)) ||
9333 Jim_GetWide(interp, objPtr, &wideValueA) != JIM_OK)
9335 Jim_DecrRefCount(interp, varAObjPtr);
9337 Jim_DecrRefCount(interp, varBObjPtr);
9342 Jim_GetVariable(interp, varBObjPtr, JIM_NONE)) ||
9343 Jim_GetWide(interp, objPtr, &wideValueB) != JIM_OK)
9345 Jim_DecrRefCount(interp, varAObjPtr);
9347 Jim_DecrRefCount(interp, varBObjPtr);
9353 cmpRes = wideValueA < wideValueB; break;
9354 case JIM_EXPROP_LTE:
9355 cmpRes = wideValueA <= wideValueB; break;
9357 cmpRes = wideValueA > wideValueB; break;
9358 case JIM_EXPROP_GTE:
9359 cmpRes = wideValueA >= wideValueB; break;
9360 case JIM_EXPROP_NUMEQ:
9361 cmpRes = wideValueA == wideValueB; break;
9362 case JIM_EXPROP_NUMNE:
9363 cmpRes = wideValueA != wideValueB; break;
9366 if ((retval = Jim_EvalObj(interp, argv[2])) != JIM_OK) {
9369 Jim_DecrRefCount(interp, varAObjPtr);
9371 Jim_DecrRefCount(interp, varBObjPtr);
9378 Jim_DecrRefCount(interp, varAObjPtr);
9380 Jim_DecrRefCount(interp, varBObjPtr);
9385 Jim_DecrRefCount(interp, varAObjPtr);
9387 Jim_DecrRefCount(interp, varBObjPtr);
9389 /* TODO: case for len == 2 */
9392 Jim_SetEmptyResult(interp);
9398 /* The general purpose implementation of while starts here */
9400 int boolean, retval;
9402 if ((retval = Jim_GetBoolFromExpr(interp, argv[1],
9403 &boolean)) != JIM_OK)
9405 if (!boolean) break;
9406 if ((retval = Jim_EvalObj(interp, argv[2])) != JIM_OK) {
9420 Jim_SetEmptyResult(interp);
9425 static int Jim_ForCoreCommand(Jim_Interp *interp, int argc,
9426 Jim_Obj *const *argv)
9431 Jim_WrongNumArgs(interp, 1, argv, "start test next body");
9434 /* Check if the for is on the form:
9435 * for {set i CONST} {$i < CONST} {incr i}
9436 * for {set i CONST} {$i < $j} {incr i}
9437 * for {set i CONST} {$i <= CONST} {incr i}
9438 * for {set i CONST} {$i <= $j} {incr i}
9439 * XXX: NOTE: if variable traces are implemented, this optimization
9440 * need to be modified to check for the proc epoch at every variable
9442 #ifdef JIM_OPTIMIZATION
9444 ScriptObj *initScript, *incrScript;
9446 jim_wide start, stop, currentVal;
9447 unsigned jim_wide procEpoch = interp->procEpoch;
9448 Jim_Obj *varNamePtr, *stopVarNamePtr = NULL, *objPtr;
9450 struct Jim_Cmd *cmdPtr;
9452 /* Do it only if there aren't shared arguments */
9453 if (argv[1] == argv[2] || argv[2] == argv[3] || argv[1] == argv[3])
9455 initScript = Jim_GetScript(interp, argv[1]);
9456 expr = Jim_GetExpression(interp, argv[2]);
9457 incrScript = Jim_GetScript(interp, argv[3]);
9459 /* Ensure proper lengths to start */
9460 if (initScript->len != 6) goto evalstart;
9461 if (incrScript->len != 4) goto evalstart;
9462 if (expr->len != 3) goto evalstart;
9463 /* Ensure proper token types. */
9464 if (initScript->token[2].type != JIM_TT_ESC ||
9465 initScript->token[4].type != JIM_TT_ESC ||
9466 incrScript->token[2].type != JIM_TT_ESC ||
9467 expr->opcode[0] != JIM_EXPROP_VARIABLE ||
9468 (expr->opcode[1] != JIM_EXPROP_NUMBER &&
9469 expr->opcode[1] != JIM_EXPROP_VARIABLE) ||
9470 (expr->opcode[2] != JIM_EXPROP_LT &&
9471 expr->opcode[2] != JIM_EXPROP_LTE))
9473 cmpType = expr->opcode[2];
9474 /* Initialization command must be [set] */
9475 cmdPtr = Jim_GetCommand(interp, initScript->token[0].objPtr, JIM_NONE);
9476 if (cmdPtr == NULL || cmdPtr->cmdProc != Jim_SetCoreCommand)
9478 /* Update command must be incr */
9479 cmdPtr = Jim_GetCommand(interp, incrScript->token[0].objPtr, JIM_NONE);
9480 if (cmdPtr == NULL || cmdPtr->cmdProc != Jim_IncrCoreCommand)
9482 /* set, incr, expression must be about the same variable */
9483 if (!Jim_StringEqObj(initScript->token[2].objPtr,
9484 incrScript->token[2].objPtr, 0))
9486 if (!Jim_StringEqObj(initScript->token[2].objPtr,
9489 /* Check that the initialization and comparison are valid integers */
9490 if (Jim_GetWide(interp, initScript->token[4].objPtr, &start) == JIM_ERR)
9492 if (expr->opcode[1] == JIM_EXPROP_NUMBER &&
9493 Jim_GetWide(interp, expr->obj[1], &stop) == JIM_ERR)
9498 /* Initialization */
9499 varNamePtr = expr->obj[0];
9500 if (expr->opcode[1] == JIM_EXPROP_VARIABLE) {
9501 stopVarNamePtr = expr->obj[1];
9502 Jim_IncrRefCount(stopVarNamePtr);
9504 Jim_IncrRefCount(varNamePtr);
9506 /* --- OPTIMIZED FOR --- */
9508 objPtr = Jim_NewIntObj(interp, start);
9509 if (Jim_SetVariable(interp, varNamePtr, objPtr) != JIM_OK) {
9510 Jim_DecrRefCount(interp, varNamePtr);
9511 if (stopVarNamePtr) Jim_DecrRefCount(interp, stopVarNamePtr);
9512 Jim_FreeNewObj(interp, objPtr);
9516 /* === Check condition === */
9518 objPtr = Jim_GetVariable(interp, varNamePtr, JIM_NONE);
9519 if (objPtr == NULL ||
9520 Jim_GetWide(interp, objPtr, ¤tVal) != JIM_OK)
9522 Jim_DecrRefCount(interp, varNamePtr);
9523 if (stopVarNamePtr) Jim_DecrRefCount(interp, stopVarNamePtr);
9526 /* Immediate or Variable? get the 'stop' value if the latter. */
9527 if (stopVarNamePtr) {
9528 objPtr = Jim_GetVariable(interp, stopVarNamePtr, JIM_NONE);
9529 if (objPtr == NULL ||
9530 Jim_GetWide(interp, objPtr, &stop) != JIM_OK)
9532 Jim_DecrRefCount(interp, varNamePtr);
9533 Jim_DecrRefCount(interp, stopVarNamePtr);
9537 if (cmpType == JIM_EXPROP_LT) {
9538 if (currentVal >= stop) break;
9540 if (currentVal > stop) break;
9543 if ((retval = Jim_EvalObj(interp, argv[4])) != JIM_OK) {
9547 Jim_DecrRefCount(interp, stopVarNamePtr);
9548 Jim_DecrRefCount(interp, varNamePtr);
9555 Jim_DecrRefCount(interp, stopVarNamePtr);
9556 Jim_DecrRefCount(interp, varNamePtr);
9560 /* If there was a change in procedures/command continue
9561 * with the usual [for] command implementation */
9562 if (procEpoch != interp->procEpoch) {
9564 Jim_DecrRefCount(interp, stopVarNamePtr);
9565 Jim_DecrRefCount(interp, varNamePtr);
9569 objPtr = Jim_GetVariable(interp, varNamePtr, JIM_ERRMSG);
9570 if (objPtr->refCount == 1 && objPtr->typePtr == &intObjType) {
9571 objPtr->internalRep.wideValue ++;
9572 Jim_InvalidateStringRep(objPtr);
9576 if (Jim_GetWide(interp, objPtr, ¤tVal) == JIM_ERR) {
9578 Jim_DecrRefCount(interp, stopVarNamePtr);
9579 Jim_DecrRefCount(interp, varNamePtr);
9582 auxObjPtr = Jim_NewIntObj(interp, currentVal+1);
9583 if (Jim_SetVariable(interp, varNamePtr, auxObjPtr) == JIM_ERR) {
9585 Jim_DecrRefCount(interp, stopVarNamePtr);
9586 Jim_DecrRefCount(interp, varNamePtr);
9587 Jim_FreeNewObj(interp, auxObjPtr);
9593 Jim_DecrRefCount(interp, stopVarNamePtr);
9594 Jim_DecrRefCount(interp, varNamePtr);
9595 Jim_SetEmptyResult(interp);
9601 if ((retval = Jim_EvalObj(interp, argv[1])) != JIM_OK)
9606 /* Test the condition */
9607 if ((retval = Jim_GetBoolFromExpr(interp, argv[2], &boolean))
9610 if (!boolean) break;
9612 if ((retval = Jim_EvalObj(interp, argv[4])) != JIM_OK) {
9626 if ((retval = Jim_EvalObj(interp, argv[3])) != JIM_OK) {
9640 Jim_SetEmptyResult(interp);
9644 /* foreach + lmap implementation. */
9645 static int JimForeachMapHelper(Jim_Interp *interp, int argc,
9646 Jim_Obj *const *argv, int doMap)
9648 int result = JIM_ERR, i, nbrOfLists, *listsIdx, *listsEnd;
9650 Jim_Obj *emptyStr, *script, *mapRes = NULL;
9652 if (argc < 4 || argc % 2 != 0) {
9653 Jim_WrongNumArgs(interp, 1, argv, "varList list ?varList list ...? script");
9657 mapRes = Jim_NewListObj(interp, NULL, 0);
9658 Jim_IncrRefCount(mapRes);
9660 emptyStr = Jim_NewEmptyStringObj(interp);
9661 Jim_IncrRefCount(emptyStr);
9662 script = argv[argc-1]; /* Last argument is a script */
9663 nbrOfLists = (argc - 1 - 1) / 2; /* argc - 'foreach' - script */
9664 listsIdx = (int*)Jim_Alloc(nbrOfLists * sizeof(int));
9665 listsEnd = (int*)Jim_Alloc(nbrOfLists*2 * sizeof(int));
9666 /* Initialize iterators and remember max nbr elements each list */
9667 memset(listsIdx, 0, nbrOfLists * sizeof(int));
9668 /* Remember lengths of all lists and calculate how much rounds to loop */
9669 for (i=0; i < nbrOfLists*2; i += 2) {
9672 Jim_ListLength(interp, argv[i+1], &listsEnd[i]);
9673 Jim_ListLength(interp, argv[i+2], &listsEnd[i+1]);
9674 if (listsEnd[i] == 0) {
9675 Jim_SetResultString(interp, "foreach varlist is empty", -1);
9678 cnt = div(listsEnd[i+1], listsEnd[i]);
9679 count = cnt.quot + (cnt.rem ? 1 : 0);
9680 if (count > nbrOfLoops)
9683 for (; nbrOfLoops-- > 0; ) {
9684 for (i=0; i < nbrOfLists; ++i) {
9685 int varIdx = 0, var = i * 2;
9686 while (varIdx < listsEnd[var]) {
9687 Jim_Obj *varName, *ele;
9688 int lst = i * 2 + 1;
9689 if (Jim_ListIndex(interp, argv[var+1], varIdx, &varName, JIM_ERRMSG)
9692 if (listsIdx[i] < listsEnd[lst]) {
9693 if (Jim_ListIndex(interp, argv[lst+1], listsIdx[i], &ele, JIM_ERRMSG)
9696 if (Jim_SetVariable(interp, varName, ele) != JIM_OK) {
9697 Jim_SetResultString(interp, "couldn't set loop variable: ", -1);
9700 ++listsIdx[i]; /* Remember next iterator of current list */
9701 } else if (Jim_SetVariable(interp, varName, emptyStr) != JIM_OK) {
9702 Jim_SetResultString(interp, "couldn't set loop variable: ", -1);
9705 ++varIdx; /* Next variable */
9708 switch (result = Jim_EvalObj(interp, script)) {
9711 Jim_ListAppendElement(interp, mapRes, interp->result);
9725 Jim_SetResult(interp, mapRes);
9727 Jim_SetEmptyResult(interp);
9730 Jim_DecrRefCount(interp, mapRes);
9731 Jim_DecrRefCount(interp, emptyStr);
9738 static int Jim_ForeachCoreCommand(Jim_Interp *interp, int argc,
9739 Jim_Obj *const *argv)
9741 return JimForeachMapHelper(interp, argc, argv, 0);
9745 static int Jim_LmapCoreCommand(Jim_Interp *interp, int argc,
9746 Jim_Obj *const *argv)
9748 return JimForeachMapHelper(interp, argc, argv, 1);
9752 static int Jim_IfCoreCommand(Jim_Interp *interp, int argc,
9753 Jim_Obj *const *argv)
9755 int boolean, retval, current = 1, falsebody = 0;
9758 /* Far not enough arguments given! */
9759 if (current >= argc) goto err;
9760 if ((retval = Jim_GetBoolFromExpr(interp,
9761 argv[current++], &boolean))
9764 /* There lacks something, isn't it? */
9765 if (current >= argc) goto err;
9766 if (Jim_CompareStringImmediate(interp, argv[current],
9768 /* Tsk tsk, no then-clause? */
9769 if (current >= argc) goto err;
9771 return Jim_EvalObj(interp, argv[current]);
9772 /* Ok: no else-clause follows */
9773 if (++current >= argc) return JIM_OK;
9774 falsebody = current++;
9775 if (Jim_CompareStringImmediate(interp, argv[falsebody],
9777 /* IIICKS - else-clause isn't last cmd? */
9778 if (current != argc-1) goto err;
9779 return Jim_EvalObj(interp, argv[current]);
9780 } else if (Jim_CompareStringImmediate(interp,
9781 argv[falsebody], "elseif"))
9782 /* Ok: elseif follows meaning all the stuff
9783 * again (how boring...) */
9785 /* OOPS - else-clause is not last cmd?*/
9786 else if (falsebody != argc-1)
9788 return Jim_EvalObj(interp, argv[falsebody]);
9793 Jim_WrongNumArgs(interp, 1, argv, "condition ?then? trueBody ?elseif ...? ?else? falseBody");
9797 enum {SWITCH_EXACT, SWITCH_GLOB, SWITCH_RE, SWITCH_CMD, SWITCH_UNKNOWN};
9800 static int Jim_SwitchCoreCommand(Jim_Interp *interp, int argc,
9801 Jim_Obj *const *argv)
9803 int retcode = JIM_ERR, matchOpt = SWITCH_EXACT, opt=1, patCount, i;
9804 Jim_Obj *command = 0, *const *caseList = 0, *strObj;
9805 Jim_Obj *script = 0;
9806 if (argc < 3) goto wrongnumargs;
9807 for (opt=1; opt < argc; ++opt) {
9808 const char *option = Jim_GetString(argv[opt], 0);
9809 if (*option != '-') break;
9810 else if (strncmp(option, "--", 2) == 0) { ++opt; break; }
9811 else if (strncmp(option, "-exact", 2) == 0) matchOpt = SWITCH_EXACT;
9812 else if (strncmp(option, "-glob", 2) == 0) matchOpt = SWITCH_GLOB;
9813 else if (strncmp(option, "-regexp", 2) == 0) matchOpt = SWITCH_RE;
9814 else if (strncmp(option, "-command", 2) == 0) { matchOpt = SWITCH_CMD;
9815 if ((argc - opt) < 2) goto wrongnumargs;
9816 command = argv[++opt];
9818 Jim_SetResult(interp, Jim_NewEmptyStringObj(interp));
9819 Jim_AppendStrings(interp, Jim_GetResult(interp),
9820 "bad option \"", option, "\": must be -exact, -glob, "
9821 "-regexp, -command procname or --", 0);
9824 if ((argc - opt) < 2) goto wrongnumargs;
9826 strObj = argv[opt++];
9827 patCount = argc - opt;
9828 if (patCount == 1) {
9830 JimListGetElements(interp, argv[opt], &patCount, &vector);
9833 caseList = &argv[opt];
9834 if (patCount == 0 || patCount % 2 != 0) goto wrongnumargs;
9835 for (i=0; script == 0 && i < patCount; i += 2) {
9836 Jim_Obj *patObj = caseList[i];
9837 if (!Jim_CompareStringImmediate(interp, patObj, "default")
9838 || i < (patCount-2)) {
9841 if (Jim_StringEqObj(strObj, patObj, 0))
9842 script = caseList[i+1];
9845 if (Jim_StringMatchObj(patObj, strObj, 0))
9846 script = caseList[i+1];
9849 command = Jim_NewStringObj(interp, "regexp", -1);
9850 /* Fall thru intentionally */
9852 Jim_Obj *parms[] = {command, patObj, strObj};
9853 int rc = Jim_EvalObjVector(interp, 3, parms);
9855 /* After the execution of a command we need to
9856 * make sure to reconvert the object into a list
9857 * again. Only for the single-list style [switch]. */
9858 if (argc-opt == 1) {
9860 JimListGetElements(interp, argv[opt], &patCount,
9864 /* command is here already decref'd */
9869 rc = Jim_GetLong(interp, Jim_GetResult(interp), &matching);
9875 script = caseList[i+1];
9879 Jim_SetResult(interp, Jim_NewEmptyStringObj(interp));
9880 Jim_AppendStrings(interp, Jim_GetResult(interp),
9881 "internal error: no such option implemented", 0);
9885 script = caseList[i+1];
9888 for(; i < patCount && Jim_CompareStringImmediate(interp, script, "-");
9890 script = caseList[i+1];
9891 if (script && Jim_CompareStringImmediate(interp, script, "-")) {
9892 Jim_SetResult(interp, Jim_NewEmptyStringObj(interp));
9893 Jim_AppendStrings(interp, Jim_GetResult(interp),
9894 "no body specified for pattern \"",
9895 Jim_GetString(caseList[i-2], 0), "\"", 0);
9899 Jim_SetEmptyResult(interp);
9901 retcode = Jim_EvalObj(interp, script);
9904 Jim_WrongNumArgs(interp, 1, argv, "?options? string "
9905 "pattern body ... ?default body? or "
9906 "{pattern body ?pattern body ...?}");
9912 static int Jim_ListCoreCommand(Jim_Interp *interp, int argc,
9913 Jim_Obj *const *argv)
9915 Jim_Obj *listObjPtr;
9917 listObjPtr = Jim_NewListObj(interp, argv+1, argc-1);
9918 Jim_SetResult(interp, listObjPtr);
9923 static int Jim_LindexCoreCommand(Jim_Interp *interp, int argc,
9924 Jim_Obj *const *argv)
9926 Jim_Obj *objPtr, *listObjPtr;
9931 Jim_WrongNumArgs(interp, 1, argv, "list index ?...?");
9935 Jim_IncrRefCount(objPtr);
9936 for (i = 2; i < argc; i++) {
9937 listObjPtr = objPtr;
9938 if (Jim_GetIndex(interp, argv[i], &index) != JIM_OK) {
9939 Jim_DecrRefCount(interp, listObjPtr);
9942 if (Jim_ListIndex(interp, listObjPtr, index, &objPtr,
9943 JIM_NONE) != JIM_OK) {
9944 /* Returns an empty object if the index
9945 * is out of range. */
9946 Jim_DecrRefCount(interp, listObjPtr);
9947 Jim_SetEmptyResult(interp);
9950 Jim_IncrRefCount(objPtr);
9951 Jim_DecrRefCount(interp, listObjPtr);
9953 Jim_SetResult(interp, objPtr);
9954 Jim_DecrRefCount(interp, objPtr);
9959 static int Jim_LlengthCoreCommand(Jim_Interp *interp, int argc,
9960 Jim_Obj *const *argv)
9965 Jim_WrongNumArgs(interp, 1, argv, "list");
9968 Jim_ListLength(interp, argv[1], &len);
9969 Jim_SetResult(interp, Jim_NewIntObj(interp, len));
9974 static int Jim_LappendCoreCommand(Jim_Interp *interp, int argc,
9975 Jim_Obj *const *argv)
9977 Jim_Obj *listObjPtr;
9981 Jim_WrongNumArgs(interp, 1, argv, "varName ?value value ...?");
9984 listObjPtr = Jim_GetVariable(interp, argv[1], JIM_NONE);
9986 /* Create the list if it does not exists */
9987 listObjPtr = Jim_NewListObj(interp, NULL, 0);
9988 if (Jim_SetVariable(interp, argv[1], listObjPtr) != JIM_OK) {
9989 Jim_FreeNewObj(interp, listObjPtr);
9993 shared = Jim_IsShared(listObjPtr);
9995 listObjPtr = Jim_DuplicateObj(interp, listObjPtr);
9996 for (i = 2; i < argc; i++)
9997 Jim_ListAppendElement(interp, listObjPtr, argv[i]);
9998 if (Jim_SetVariable(interp, argv[1], listObjPtr) != JIM_OK) {
10000 Jim_FreeNewObj(interp, listObjPtr);
10003 Jim_SetResult(interp, listObjPtr);
10008 static int Jim_LinsertCoreCommand(Jim_Interp *interp, int argc,
10009 Jim_Obj *const *argv)
10015 Jim_WrongNumArgs(interp, 1, argv, "list index element "
10020 if (Jim_IsShared(listPtr))
10021 listPtr = Jim_DuplicateObj(interp, listPtr);
10022 if (Jim_GetIndex(interp, argv[2], &index) != JIM_OK)
10024 Jim_ListLength(interp, listPtr, &len);
10027 else if (index < 0)
10028 index = len + index + 1;
10029 Jim_ListInsertElements(interp, listPtr, index, argc-3, &argv[3]);
10030 Jim_SetResult(interp, listPtr);
10033 if (listPtr != argv[1]) {
10034 Jim_FreeNewObj(interp, listPtr);
10040 static int Jim_LsetCoreCommand(Jim_Interp *interp, int argc,
10041 Jim_Obj *const *argv)
10044 Jim_WrongNumArgs(interp, 1, argv, "listVar ?index...? newVal");
10046 } else if (argc == 3) {
10047 if (Jim_SetVariable(interp, argv[1], argv[2]) != JIM_OK)
10049 Jim_SetResult(interp, argv[2]);
10052 if (Jim_SetListIndex(interp, argv[1], argv+2, argc-3, argv[argc-1])
10053 == JIM_ERR) return JIM_ERR;
10058 static int Jim_LsortCoreCommand(Jim_Interp *interp, int argc, Jim_Obj *const argv[])
10060 const char *options[] = {
10061 "-ascii", "-nocase", "-increasing", "-decreasing", NULL
10063 enum {OPT_ASCII, OPT_NOCASE, OPT_INCREASING, OPT_DECREASING};
10065 int i, lsortType = JIM_LSORT_ASCII; /* default sort type */
10066 int decreasing = 0;
10069 Jim_WrongNumArgs(interp, 1, argv, "?options? list");
10072 for (i = 1; i < (argc-1); i++) {
10075 if (Jim_GetEnum(interp, argv[i], options, &option, "option", JIM_ERRMSG)
10079 case OPT_ASCII: lsortType = JIM_LSORT_ASCII; break;
10080 case OPT_NOCASE: lsortType = JIM_LSORT_NOCASE; break;
10081 case OPT_INCREASING: decreasing = 0; break;
10082 case OPT_DECREASING: decreasing = 1; break;
10086 switch(lsortType) {
10087 case JIM_LSORT_ASCII: lsortType = JIM_LSORT_ASCII_DECR; break;
10088 case JIM_LSORT_NOCASE: lsortType = JIM_LSORT_NOCASE_DECR; break;
10091 resObj = Jim_DuplicateObj(interp, argv[argc-1]);
10092 ListSortElements(interp, resObj, lsortType);
10093 Jim_SetResult(interp, resObj);
10098 static int Jim_AppendCoreCommand(Jim_Interp *interp, int argc,
10099 Jim_Obj *const *argv)
10101 Jim_Obj *stringObjPtr;
10105 Jim_WrongNumArgs(interp, 1, argv, "varName ?value value ...?");
10109 stringObjPtr = Jim_GetVariable(interp, argv[1], JIM_ERRMSG);
10110 if (!stringObjPtr) return JIM_ERR;
10112 stringObjPtr = Jim_GetVariable(interp, argv[1], JIM_NONE);
10113 if (!stringObjPtr) {
10114 /* Create the string if it does not exists */
10115 stringObjPtr = Jim_NewEmptyStringObj(interp);
10116 if (Jim_SetVariable(interp, argv[1], stringObjPtr)
10118 Jim_FreeNewObj(interp, stringObjPtr);
10123 shared = Jim_IsShared(stringObjPtr);
10125 stringObjPtr = Jim_DuplicateObj(interp, stringObjPtr);
10126 for (i = 2; i < argc; i++)
10127 Jim_AppendObj(interp, stringObjPtr, argv[i]);
10128 if (Jim_SetVariable(interp, argv[1], stringObjPtr) != JIM_OK) {
10130 Jim_FreeNewObj(interp, stringObjPtr);
10133 Jim_SetResult(interp, stringObjPtr);
10138 static int Jim_DebugCoreCommand(Jim_Interp *interp, int argc,
10139 Jim_Obj *const *argv)
10141 const char *options[] = {
10142 "refcount", "objcount", "objects", "invstr", "scriptlen", "exprlen",
10147 OPT_REFCOUNT, OPT_OBJCOUNT, OPT_OBJECTS, OPT_INVSTR, OPT_SCRIPTLEN,
10148 OPT_EXPRLEN, OPT_EXPRBC
10153 Jim_WrongNumArgs(interp, 1, argv, "option ?...?");
10156 if (Jim_GetEnum(interp, argv[1], options, &option, "option",
10157 JIM_ERRMSG) != JIM_OK)
10159 if (option == OPT_REFCOUNT) {
10161 Jim_WrongNumArgs(interp, 2, argv, "object");
10164 Jim_SetResult(interp, Jim_NewIntObj(interp, argv[2]->refCount));
10166 } else if (option == OPT_OBJCOUNT) {
10167 int freeobj = 0, liveobj = 0;
10172 Jim_WrongNumArgs(interp, 2, argv, "");
10175 /* Count the number of free objects. */
10176 objPtr = interp->freeList;
10179 objPtr = objPtr->nextObjPtr;
10181 /* Count the number of live objects. */
10182 objPtr = interp->liveList;
10185 objPtr = objPtr->nextObjPtr;
10187 /* Set the result string and return. */
10188 sprintf(buf, "free %d used %d", freeobj, liveobj);
10189 Jim_SetResultString(interp, buf, -1);
10191 } else if (option == OPT_OBJECTS) {
10192 Jim_Obj *objPtr, *listObjPtr, *subListObjPtr;
10193 /* Count the number of live objects. */
10194 objPtr = interp->liveList;
10195 listObjPtr = Jim_NewListObj(interp, NULL, 0);
10198 const char *type = objPtr->typePtr ?
10199 objPtr->typePtr->name : "";
10200 subListObjPtr = Jim_NewListObj(interp, NULL, 0);
10201 sprintf(buf, "%p", objPtr);
10202 Jim_ListAppendElement(interp, subListObjPtr,
10203 Jim_NewStringObj(interp, buf, -1));
10204 Jim_ListAppendElement(interp, subListObjPtr,
10205 Jim_NewStringObj(interp, type, -1));
10206 Jim_ListAppendElement(interp, subListObjPtr,
10207 Jim_NewIntObj(interp, objPtr->refCount));
10208 Jim_ListAppendElement(interp, subListObjPtr, objPtr);
10209 Jim_ListAppendElement(interp, listObjPtr, subListObjPtr);
10210 objPtr = objPtr->nextObjPtr;
10212 Jim_SetResult(interp, listObjPtr);
10214 } else if (option == OPT_INVSTR) {
10218 Jim_WrongNumArgs(interp, 2, argv, "object");
10222 if (objPtr->typePtr != NULL)
10223 Jim_InvalidateStringRep(objPtr);
10224 Jim_SetEmptyResult(interp);
10226 } else if (option == OPT_SCRIPTLEN) {
10229 Jim_WrongNumArgs(interp, 2, argv, "script");
10232 script = Jim_GetScript(interp, argv[2]);
10233 Jim_SetResult(interp, Jim_NewIntObj(interp, script->len));
10235 } else if (option == OPT_EXPRLEN) {
10236 ExprByteCode *expr;
10238 Jim_WrongNumArgs(interp, 2, argv, "expression");
10241 expr = Jim_GetExpression(interp, argv[2]);
10244 Jim_SetResult(interp, Jim_NewIntObj(interp, expr->len));
10246 } else if (option == OPT_EXPRBC) {
10248 ExprByteCode *expr;
10252 Jim_WrongNumArgs(interp, 2, argv, "expression");
10255 expr = Jim_GetExpression(interp, argv[2]);
10258 objPtr = Jim_NewListObj(interp, NULL, 0);
10259 for (i = 0; i < expr->len; i++) {
10261 Jim_ExprOperator *op;
10263 switch(expr->opcode[i]) {
10264 case JIM_EXPROP_NUMBER: type = "number"; break;
10265 case JIM_EXPROP_COMMAND: type = "command"; break;
10266 case JIM_EXPROP_VARIABLE: type = "variable"; break;
10267 case JIM_EXPROP_DICTSUGAR: type = "dictsugar"; break;
10268 case JIM_EXPROP_SUBST: type = "subst"; break;
10269 case JIM_EXPROP_STRING: type = "string"; break;
10271 op = JimExprOperatorInfo(Jim_GetString(expr->obj[i], NULL));
10279 Jim_ListAppendElement(interp, objPtr,
10280 Jim_NewStringObj(interp, type, -1));
10281 Jim_ListAppendElement(interp, objPtr, expr->obj[i]);
10283 Jim_SetResult(interp, objPtr);
10286 Jim_SetResultString(interp,
10287 "bad option. Valid options are refcount, "
10288 "objcount, objects, invstr", -1);
10291 return JIM_OK; /* unreached */
10295 static int Jim_EvalCoreCommand(Jim_Interp *interp, int argc,
10296 Jim_Obj *const *argv)
10299 return Jim_EvalObj(interp, argv[1]);
10300 } else if (argc > 2) {
10304 objPtr = Jim_ConcatObj(interp, argc-1, argv+1);
10305 Jim_IncrRefCount(objPtr);
10306 retcode = Jim_EvalObj(interp, objPtr);
10307 Jim_DecrRefCount(interp, objPtr);
10310 Jim_WrongNumArgs(interp, 1, argv, "script ?...?");
10316 static int Jim_UplevelCoreCommand(Jim_Interp *interp, int argc,
10317 Jim_Obj *const *argv)
10320 int retcode, newLevel, oldLevel;
10321 Jim_CallFrame *savedCallFrame, *targetCallFrame;
10325 /* Save the old callframe pointer */
10326 savedCallFrame = interp->framePtr;
10328 /* Lookup the target frame pointer */
10329 str = Jim_GetString(argv[1], NULL);
10330 if ((str[0] >= '0' && str[0] <= '9') || str[0] == '#')
10332 if (Jim_GetCallFrameByLevel(interp, argv[1],
10334 &newLevel) != JIM_OK)
10339 if (Jim_GetCallFrameByLevel(interp, NULL,
10341 &newLevel) != JIM_OK)
10347 Jim_WrongNumArgs(interp, 1, argv,
10348 "?level? command ?arg ...?");
10351 /* Eval the code in the target callframe. */
10352 interp->framePtr = targetCallFrame;
10353 oldLevel = interp->numLevels;
10354 interp->numLevels = newLevel;
10356 retcode = Jim_EvalObj(interp, argv[1]);
10358 objPtr = Jim_ConcatObj(interp, argc-1, argv+1);
10359 Jim_IncrRefCount(objPtr);
10360 retcode = Jim_EvalObj(interp, objPtr);
10361 Jim_DecrRefCount(interp, objPtr);
10363 interp->numLevels = oldLevel;
10364 interp->framePtr = savedCallFrame;
10367 Jim_WrongNumArgs(interp, 1, argv, "?level? command ?arg ...?");
10373 static int Jim_ExprCoreCommand(Jim_Interp *interp, int argc,
10374 Jim_Obj *const *argv)
10376 Jim_Obj *exprResultPtr;
10380 retcode = Jim_EvalExpression(interp, argv[1], &exprResultPtr);
10381 } else if (argc > 2) {
10384 objPtr = Jim_ConcatObj(interp, argc-1, argv+1);
10385 Jim_IncrRefCount(objPtr);
10386 retcode = Jim_EvalExpression(interp, objPtr, &exprResultPtr);
10387 Jim_DecrRefCount(interp, objPtr);
10389 Jim_WrongNumArgs(interp, 1, argv, "expression ?...?");
10392 if (retcode != JIM_OK) return retcode;
10393 Jim_SetResult(interp, exprResultPtr);
10394 Jim_DecrRefCount(interp, exprResultPtr);
10399 static int Jim_BreakCoreCommand(Jim_Interp *interp, int argc,
10400 Jim_Obj *const *argv)
10403 Jim_WrongNumArgs(interp, 1, argv, "");
10410 static int Jim_ContinueCoreCommand(Jim_Interp *interp, int argc,
10411 Jim_Obj *const *argv)
10414 Jim_WrongNumArgs(interp, 1, argv, "");
10417 return JIM_CONTINUE;
10421 static int Jim_ReturnCoreCommand(Jim_Interp *interp, int argc,
10422 Jim_Obj *const *argv)
10426 } else if (argc == 2) {
10427 Jim_SetResult(interp, argv[1]);
10428 interp->returnCode = JIM_OK;
10430 } else if (argc == 3 || argc == 4) {
10432 if (Jim_GetReturnCode(interp, argv[2], &returnCode) == JIM_ERR)
10434 interp->returnCode = returnCode;
10436 Jim_SetResult(interp, argv[3]);
10439 Jim_WrongNumArgs(interp, 1, argv, "?-code code? ?result?");
10442 return JIM_RETURN; /* unreached */
10446 static int Jim_TailcallCoreCommand(Jim_Interp *interp, int argc,
10447 Jim_Obj *const *argv)
10451 objPtr = Jim_NewListObj(interp, argv+1, argc-1);
10452 Jim_SetResult(interp, objPtr);
10457 static int Jim_ProcCoreCommand(Jim_Interp *interp, int argc,
10458 Jim_Obj *const *argv)
10461 int arityMin, arityMax;
10463 if (argc != 4 && argc != 5) {
10464 Jim_WrongNumArgs(interp, 1, argv, "name arglist ?statics? body");
10467 Jim_ListLength(interp, argv[2], &argListLen);
10468 arityMin = arityMax = argListLen+1;
10472 Jim_Obj *lastArgPtr;
10474 Jim_ListIndex(interp, argv[2], argListLen-1, &lastArgPtr, JIM_NONE);
10475 str = Jim_GetString(lastArgPtr, &len);
10476 if (len == 4 && memcmp(str, "args", 4) == 0) {
10482 return Jim_CreateProcedure(interp, Jim_GetString(argv[1], NULL),
10483 argv[2], NULL, argv[3], arityMin, arityMax);
10485 return Jim_CreateProcedure(interp, Jim_GetString(argv[1], NULL),
10486 argv[2], argv[3], argv[4], arityMin, arityMax);
10491 static int Jim_ConcatCoreCommand(Jim_Interp *interp, int argc,
10492 Jim_Obj *const *argv)
10494 Jim_SetResult(interp, Jim_ConcatObj(interp, argc-1, argv+1));
10499 static int Jim_UpvarCoreCommand(Jim_Interp *interp, int argc,
10500 Jim_Obj *const *argv)
10504 Jim_CallFrame *targetCallFrame;
10506 /* Lookup the target frame pointer */
10507 str = Jim_GetString(argv[1], NULL);
10509 ((str[0] >= '0' && str[0] <= '9') || str[0] == '#'))
10511 if (Jim_GetCallFrameByLevel(interp, argv[1],
10512 &targetCallFrame, NULL) != JIM_OK)
10517 if (Jim_GetCallFrameByLevel(interp, NULL,
10518 &targetCallFrame, NULL) != JIM_OK)
10521 /* Check for arity */
10522 if (argc < 3 || ((argc-1)%2) != 0) {
10523 Jim_WrongNumArgs(interp, 1, argv, "?level? otherVar localVar ?otherVar localVar ...?");
10526 /* Now... for every other/local couple: */
10527 for (i = 1; i < argc; i += 2) {
10528 if (Jim_SetVariableLink(interp, argv[i+1], argv[i],
10529 targetCallFrame) != JIM_OK) return JIM_ERR;
10535 static int Jim_GlobalCoreCommand(Jim_Interp *interp, int argc,
10536 Jim_Obj *const *argv)
10541 Jim_WrongNumArgs(interp, 1, argv, "varName ?varName ...?");
10544 /* Link every var to the toplevel having the same name */
10545 if (interp->numLevels == 0) return JIM_OK; /* global at toplevel... */
10546 for (i = 1; i < argc; i++) {
10547 if (Jim_SetVariableLink(interp, argv[i], argv[i],
10548 interp->topFramePtr) != JIM_OK) return JIM_ERR;
10553 /* does the [string map] operation. On error NULL is returned,
10554 * otherwise a new string object with the result, having refcount = 0,
10556 static Jim_Obj *JimStringMap(Jim_Interp *interp, Jim_Obj *mapListObjPtr,
10557 Jim_Obj *objPtr, int nocase)
10560 const char **key, *str, *noMatchStart = NULL;
10562 int *keyLen, strLen, i;
10563 Jim_Obj *resultObjPtr;
10565 Jim_ListLength(interp, mapListObjPtr, &numMaps);
10567 Jim_SetResultString(interp,
10568 "list must contain an even number of elements", -1);
10571 /* Initialization */
10573 key = Jim_Alloc(sizeof(char*)*numMaps);
10574 keyLen = Jim_Alloc(sizeof(int)*numMaps);
10575 value = Jim_Alloc(sizeof(Jim_Obj*)*numMaps);
10576 resultObjPtr = Jim_NewStringObj(interp, "", 0);
10577 for (i = 0; i < numMaps; i++) {
10578 Jim_Obj *eleObjPtr;
10580 Jim_ListIndex(interp, mapListObjPtr, i*2, &eleObjPtr, JIM_NONE);
10581 key[i] = Jim_GetString(eleObjPtr, &keyLen[i]);
10582 Jim_ListIndex(interp, mapListObjPtr, i*2+1, &eleObjPtr, JIM_NONE);
10583 value[i] = eleObjPtr;
10585 str = Jim_GetString(objPtr, &strLen);
10588 for (i = 0; i < numMaps; i++) {
10589 if (strLen >= keyLen[i] && keyLen[i]) {
10590 if (!JimStringCompare(str, keyLen[i], key[i], keyLen[i],
10593 if (noMatchStart) {
10594 Jim_AppendString(interp, resultObjPtr,
10595 noMatchStart, str-noMatchStart);
10596 noMatchStart = NULL;
10598 Jim_AppendObj(interp, resultObjPtr, value[i]);
10600 strLen -= keyLen[i];
10605 if (i == numMaps) { /* no match */
10606 if (noMatchStart == NULL)
10607 noMatchStart = str;
10612 if (noMatchStart) {
10613 Jim_AppendString(interp, resultObjPtr,
10614 noMatchStart, str-noMatchStart);
10616 Jim_Free((void*)key);
10619 return resultObjPtr;
10623 static int Jim_StringCoreCommand(Jim_Interp *interp, int argc,
10624 Jim_Obj *const *argv)
10627 const char *options[] = {
10628 "length", "compare", "match", "equal", "range", "map", "repeat",
10629 "index", "first", "tolower", "toupper", NULL
10632 OPT_LENGTH, OPT_COMPARE, OPT_MATCH, OPT_EQUAL, OPT_RANGE,
10633 OPT_MAP, OPT_REPEAT, OPT_INDEX, OPT_FIRST, OPT_TOLOWER, OPT_TOUPPER
10637 Jim_WrongNumArgs(interp, 1, argv, "option ?arguments ...?");
10640 if (Jim_GetEnum(interp, argv[1], options, &option, "option",
10641 JIM_ERRMSG) != JIM_OK)
10644 if (option == OPT_LENGTH) {
10648 Jim_WrongNumArgs(interp, 2, argv, "string");
10651 Jim_GetString(argv[2], &len);
10652 Jim_SetResult(interp, Jim_NewIntObj(interp, len));
10654 } else if (option == OPT_COMPARE) {
10656 if ((argc != 4 && argc != 5) ||
10657 (argc == 5 && Jim_CompareStringImmediate(interp,
10658 argv[2], "-nocase") == 0)) {
10659 Jim_WrongNumArgs(interp, 2, argv, "string1 string2");
10666 Jim_SetResult(interp, Jim_NewIntObj(interp,
10667 Jim_StringCompareObj(argv[2],
10668 argv[3], nocase)));
10670 } else if (option == OPT_MATCH) {
10672 if ((argc != 4 && argc != 5) ||
10673 (argc == 5 && Jim_CompareStringImmediate(interp,
10674 argv[2], "-nocase") == 0)) {
10675 Jim_WrongNumArgs(interp, 2, argv, "?-nocase? pattern "
10683 Jim_SetResult(interp,
10684 Jim_NewIntObj(interp, Jim_StringMatchObj(argv[2],
10685 argv[3], nocase)));
10687 } else if (option == OPT_EQUAL) {
10689 Jim_WrongNumArgs(interp, 2, argv, "string1 string2");
10692 Jim_SetResult(interp,
10693 Jim_NewIntObj(interp, Jim_StringEqObj(argv[2],
10696 } else if (option == OPT_RANGE) {
10700 Jim_WrongNumArgs(interp, 2, argv, "string first last");
10703 objPtr = Jim_StringRangeObj(interp, argv[2], argv[3], argv[4]);
10704 if (objPtr == NULL)
10706 Jim_SetResult(interp, objPtr);
10708 } else if (option == OPT_MAP) {
10712 if ((argc != 4 && argc != 5) ||
10713 (argc == 5 && Jim_CompareStringImmediate(interp,
10714 argv[2], "-nocase") == 0)) {
10715 Jim_WrongNumArgs(interp, 2, argv, "?-nocase? mapList "
10723 objPtr = JimStringMap(interp, argv[2], argv[3], nocase);
10724 if (objPtr == NULL)
10726 Jim_SetResult(interp, objPtr);
10728 } else if (option == OPT_REPEAT) {
10733 Jim_WrongNumArgs(interp, 2, argv, "string count");
10736 if (Jim_GetWide(interp, argv[3], &count) != JIM_OK)
10738 objPtr = Jim_NewStringObj(interp, "", 0);
10740 Jim_AppendObj(interp, objPtr, argv[2]);
10742 Jim_SetResult(interp, objPtr);
10744 } else if (option == OPT_INDEX) {
10749 Jim_WrongNumArgs(interp, 2, argv, "string index");
10752 if (Jim_GetIndex(interp, argv[3], &index) != JIM_OK)
10754 str = Jim_GetString(argv[2], &len);
10755 if (index != INT_MIN && index != INT_MAX)
10756 index = JimRelToAbsIndex(len, index);
10757 if (index < 0 || index >= len) {
10758 Jim_SetResult(interp, Jim_NewEmptyStringObj(interp));
10761 Jim_SetResult(interp, Jim_NewStringObj(interp, str+index, 1));
10764 } else if (option == OPT_FIRST) {
10765 int index = 0, l1, l2;
10766 const char *s1, *s2;
10768 if (argc != 4 && argc != 5) {
10769 Jim_WrongNumArgs(interp, 2, argv, "subString string ?startIndex?");
10772 s1 = Jim_GetString(argv[2], &l1);
10773 s2 = Jim_GetString(argv[3], &l2);
10775 if (Jim_GetIndex(interp, argv[4], &index) != JIM_OK)
10777 index = JimRelToAbsIndex(l2, index);
10779 Jim_SetResult(interp, Jim_NewIntObj(interp,
10780 JimStringFirst(s1, l1, s2, l2, index)));
10782 } else if (option == OPT_TOLOWER) {
10784 Jim_WrongNumArgs(interp, 2, argv, "string");
10787 Jim_SetResult(interp, JimStringToLower(interp, argv[2]));
10788 } else if (option == OPT_TOUPPER) {
10790 Jim_WrongNumArgs(interp, 2, argv, "string");
10793 Jim_SetResult(interp, JimStringToUpper(interp, argv[2]));
10799 static int Jim_TimeCoreCommand(Jim_Interp *interp, int argc,
10800 Jim_Obj *const *argv)
10803 jim_wide start, elapsed;
10805 const char *fmt = "%" JIM_WIDE_MODIFIER " microseconds per iteration";
10808 Jim_WrongNumArgs(interp, 1, argv, "script ?count?");
10812 if (Jim_GetLong(interp, argv[2], &count) != JIM_OK)
10818 start = JimClock();
10822 if ((retval = Jim_EvalObj(interp, argv[1])) != JIM_OK)
10825 elapsed = JimClock() - start;
10826 sprintf(buf, fmt, elapsed/count);
10827 Jim_SetResultString(interp, buf, -1);
10832 static int Jim_ExitCoreCommand(Jim_Interp *interp, int argc,
10833 Jim_Obj *const *argv)
10838 Jim_WrongNumArgs(interp, 1, argv, "?exitCode?");
10842 if (Jim_GetLong(interp, argv[1], &exitCode) != JIM_OK)
10845 interp->exitCode = exitCode;
10850 static int Jim_CatchCoreCommand(Jim_Interp *interp, int argc,
10851 Jim_Obj *const *argv)
10855 if (argc != 2 && argc != 3) {
10856 Jim_WrongNumArgs(interp, 1, argv, "script ?varName?");
10859 exitCode = Jim_EvalObj(interp, argv[1]);
10861 if (Jim_SetVariable(interp, argv[2], Jim_GetResult(interp))
10865 Jim_SetResult(interp, Jim_NewIntObj(interp, exitCode));
10870 static int Jim_RefCoreCommand(Jim_Interp *interp, int argc,
10871 Jim_Obj *const *argv)
10873 if (argc != 3 && argc != 4) {
10874 Jim_WrongNumArgs(interp, 1, argv, "string tag ?finalizer?");
10878 Jim_SetResult(interp, Jim_NewReference(interp, argv[1], argv[2], NULL));
10880 Jim_SetResult(interp, Jim_NewReference(interp, argv[1], argv[2],
10887 static int Jim_GetrefCoreCommand(Jim_Interp *interp, int argc,
10888 Jim_Obj *const *argv)
10890 Jim_Reference *refPtr;
10893 Jim_WrongNumArgs(interp, 1, argv, "reference");
10896 if ((refPtr = Jim_GetReference(interp, argv[1])) == NULL)
10898 Jim_SetResult(interp, refPtr->objPtr);
10903 static int Jim_SetrefCoreCommand(Jim_Interp *interp, int argc,
10904 Jim_Obj *const *argv)
10906 Jim_Reference *refPtr;
10909 Jim_WrongNumArgs(interp, 1, argv, "reference newValue");
10912 if ((refPtr = Jim_GetReference(interp, argv[1])) == NULL)
10914 Jim_IncrRefCount(argv[2]);
10915 Jim_DecrRefCount(interp, refPtr->objPtr);
10916 refPtr->objPtr = argv[2];
10917 Jim_SetResult(interp, argv[2]);
10922 static int Jim_CollectCoreCommand(Jim_Interp *interp, int argc,
10923 Jim_Obj *const *argv)
10926 Jim_WrongNumArgs(interp, 1, argv, "");
10929 Jim_SetResult(interp, Jim_NewIntObj(interp, Jim_Collect(interp)));
10933 /* [finalize] reference ?newValue? */
10934 static int Jim_FinalizeCoreCommand(Jim_Interp *interp, int argc,
10935 Jim_Obj *const *argv)
10937 if (argc != 2 && argc != 3) {
10938 Jim_WrongNumArgs(interp, 1, argv, "reference ?finalizerProc?");
10942 Jim_Obj *cmdNamePtr;
10944 if (Jim_GetFinalizer(interp, argv[1], &cmdNamePtr) != JIM_OK)
10946 if (cmdNamePtr != NULL) /* otherwise the null string is returned. */
10947 Jim_SetResult(interp, cmdNamePtr);
10949 if (Jim_SetFinalizer(interp, argv[1], argv[2]) != JIM_OK)
10951 Jim_SetResult(interp, argv[2]);
10957 /* [info references] (list of all the references/finalizers) */
10960 static int Jim_RenameCoreCommand(Jim_Interp *interp, int argc,
10961 Jim_Obj *const *argv)
10963 const char *oldName, *newName;
10966 Jim_WrongNumArgs(interp, 1, argv, "oldName newName");
10969 oldName = Jim_GetString(argv[1], NULL);
10970 newName = Jim_GetString(argv[2], NULL);
10971 if (Jim_RenameCommand(interp, oldName, newName) != JIM_OK) {
10972 Jim_SetResult(interp, Jim_NewEmptyStringObj(interp));
10973 Jim_AppendStrings(interp, Jim_GetResult(interp),
10974 "can't rename \"", oldName, "\": ",
10975 "command doesn't exist", NULL);
10982 static int Jim_DictCoreCommand(Jim_Interp *interp, int argc,
10983 Jim_Obj *const *argv)
10986 const char *options[] = {
10987 "create", "get", "set", "unset", "exists", NULL
10990 OPT_CREATE, OPT_GET, OPT_SET, OPT_UNSET, OPT_EXIST
10994 Jim_WrongNumArgs(interp, 1, argv, "option ?arguments ...?");
10998 if (Jim_GetEnum(interp, argv[1], options, &option, "option",
10999 JIM_ERRMSG) != JIM_OK)
11002 if (option == OPT_CREATE) {
11006 Jim_WrongNumArgs(interp, 2, argv, "?key value ...?");
11009 objPtr = Jim_NewDictObj(interp, argv+2, argc-2);
11010 Jim_SetResult(interp, objPtr);
11012 } else if (option == OPT_GET) {
11015 if (Jim_DictKeysVector(interp, argv[2], argv+3, argc-3, &objPtr,
11016 JIM_ERRMSG) != JIM_OK)
11018 Jim_SetResult(interp, objPtr);
11020 } else if (option == OPT_SET) {
11022 Jim_WrongNumArgs(interp, 2, argv, "varName key ?key ...? value");
11025 return Jim_SetDictKeysVector(interp, argv[2], argv+3, argc-4,
11027 } else if (option == OPT_UNSET) {
11029 Jim_WrongNumArgs(interp, 2, argv, "varName key ?key ...?");
11032 return Jim_SetDictKeysVector(interp, argv[2], argv+3, argc-3,
11034 } else if (option == OPT_EXIST) {
11038 if (Jim_DictKeysVector(interp, argv[2], argv+3, argc-3, &objPtr,
11039 JIM_ERRMSG) == JIM_OK)
11043 Jim_SetResult(interp, Jim_NewIntObj(interp, exists));
11046 Jim_SetResult(interp, Jim_NewEmptyStringObj(interp));
11047 Jim_AppendStrings(interp, Jim_GetResult(interp),
11048 "bad option \"", Jim_GetString(argv[1], NULL), "\":",
11049 " must be create, get, set", NULL);
11056 static int Jim_LoadCoreCommand(Jim_Interp *interp, int argc,
11057 Jim_Obj *const *argv)
11060 Jim_WrongNumArgs(interp, 1, argv, "libaryFile");
11063 return Jim_LoadLibrary(interp, Jim_GetString(argv[1], NULL));
11067 static int Jim_SubstCoreCommand(Jim_Interp *interp, int argc,
11068 Jim_Obj *const *argv)
11074 Jim_WrongNumArgs(interp, 1, argv,
11075 "?-nobackslashes? ?-nocommands? ?-novariables? string");
11080 if (Jim_CompareStringImmediate(interp, argv[i+1],
11082 flags |= JIM_SUBST_NOESC;
11083 else if (Jim_CompareStringImmediate(interp, argv[i+1],
11085 flags |= JIM_SUBST_NOVAR;
11086 else if (Jim_CompareStringImmediate(interp, argv[i+1],
11088 flags |= JIM_SUBST_NOCMD;
11090 Jim_SetResult(interp, Jim_NewEmptyStringObj(interp));
11091 Jim_AppendStrings(interp, Jim_GetResult(interp),
11092 "bad option \"", Jim_GetString(argv[i+1], NULL),
11093 "\": must be -nobackslashes, -nocommands, or "
11094 "-novariables", NULL);
11098 if (Jim_SubstObj(interp, argv[argc-1], &objPtr, flags) != JIM_OK)
11100 Jim_SetResult(interp, objPtr);
11105 static int Jim_InfoCoreCommand(Jim_Interp *interp, int argc,
11106 Jim_Obj *const *argv)
11108 int cmd, result = JIM_OK;
11109 static const char *commands[] = {
11110 "body", "commands", "exists", "globals", "level", "locals",
11111 "vars", "version", "complete", "args", NULL
11113 enum {INFO_BODY, INFO_COMMANDS, INFO_EXISTS, INFO_GLOBALS, INFO_LEVEL,
11114 INFO_LOCALS, INFO_VARS, INFO_VERSION, INFO_COMPLETE, INFO_ARGS};
11117 Jim_WrongNumArgs(interp, 1, argv, "command ?args ...?");
11120 if (Jim_GetEnum(interp, argv[1], commands, &cmd, "command", JIM_ERRMSG)
11125 if (cmd == INFO_COMMANDS) {
11126 if (argc != 2 && argc != 3) {
11127 Jim_WrongNumArgs(interp, 2, argv, "?pattern?");
11131 Jim_SetResult(interp,JimCommandsList(interp, argv[2]));
11133 Jim_SetResult(interp, JimCommandsList(interp, NULL));
11134 } else if (cmd == INFO_EXISTS) {
11137 Jim_WrongNumArgs(interp, 2, argv, "varName");
11140 exists = Jim_GetVariable(interp, argv[2], 0);
11141 Jim_SetResult(interp, Jim_NewIntObj(interp, exists != 0));
11142 } else if (cmd == INFO_GLOBALS || cmd == INFO_LOCALS || cmd == INFO_VARS) {
11145 case INFO_GLOBALS: mode = JIM_VARLIST_GLOBALS; break;
11146 case INFO_LOCALS: mode = JIM_VARLIST_LOCALS; break;
11147 case INFO_VARS: mode = JIM_VARLIST_VARS; break;
11148 default: mode = 0; /* avoid warning */; break;
11150 if (argc != 2 && argc != 3) {
11151 Jim_WrongNumArgs(interp, 2, argv, "?pattern?");
11155 Jim_SetResult(interp,JimVariablesList(interp, argv[2], mode));
11157 Jim_SetResult(interp, JimVariablesList(interp, NULL, mode));
11158 } else if (cmd == INFO_LEVEL) {
11162 Jim_SetResult(interp,
11163 Jim_NewIntObj(interp, interp->numLevels));
11166 if (JimInfoLevel(interp, argv[2], &objPtr) != JIM_OK)
11168 Jim_SetResult(interp, objPtr);
11171 Jim_WrongNumArgs(interp, 2, argv, "?levelNum?");
11174 } else if (cmd == INFO_BODY || cmd == INFO_ARGS) {
11178 Jim_WrongNumArgs(interp, 2, argv, "procname");
11181 if ((cmdPtr = Jim_GetCommand(interp, argv[2], JIM_ERRMSG)) == NULL)
11183 if (cmdPtr->cmdProc != NULL) {
11184 Jim_SetResult(interp, Jim_NewEmptyStringObj(interp));
11185 Jim_AppendStrings(interp, Jim_GetResult(interp),
11186 "command \"", Jim_GetString(argv[2], NULL),
11187 "\" is not a procedure", NULL);
11190 if (cmd == INFO_BODY)
11191 Jim_SetResult(interp, cmdPtr->bodyObjPtr);
11193 Jim_SetResult(interp, cmdPtr->argListObjPtr);
11194 } else if (cmd == INFO_VERSION) {
11195 char buf[(JIM_INTEGER_SPACE * 2) + 1];
11196 sprintf(buf, "%d.%d",
11197 JIM_VERSION / 100, JIM_VERSION % 100);
11198 Jim_SetResultString(interp, buf, -1);
11199 } else if (cmd == INFO_COMPLETE) {
11204 Jim_WrongNumArgs(interp, 2, argv, "script");
11207 s = Jim_GetString(argv[2], &len);
11208 Jim_SetResult(interp,
11209 Jim_NewIntObj(interp, Jim_ScriptIsComplete(s, len, NULL)));
11215 static int Jim_SplitCoreCommand(Jim_Interp *interp, int argc,
11216 Jim_Obj *const *argv)
11218 const char *str, *splitChars, *noMatchStart;
11219 int splitLen, strLen, i;
11220 Jim_Obj *resObjPtr;
11222 if (argc != 2 && argc != 3) {
11223 Jim_WrongNumArgs(interp, 1, argv, "string ?splitChars?");
11228 splitChars = " \n\t\r";
11231 splitChars = Jim_GetString(argv[2], &splitLen);
11233 str = Jim_GetString(argv[1], &strLen);
11234 if (!strLen) return JIM_OK;
11235 noMatchStart = str;
11236 resObjPtr = Jim_NewListObj(interp, NULL, 0);
11240 for (i = 0; i < splitLen; i++) {
11241 if (*str == splitChars[i]) {
11244 objPtr = Jim_NewStringObj(interp, noMatchStart,
11245 (str-noMatchStart));
11246 Jim_ListAppendElement(interp, resObjPtr, objPtr);
11247 noMatchStart = str+1;
11254 Jim_ListAppendElement(interp, resObjPtr,
11255 Jim_NewStringObj(interp, noMatchStart, (str-noMatchStart)));
11257 /* This handles the special case of splitchars eq {}. This
11258 * is trivial but we want to perform object sharing as Tcl does. */
11259 Jim_Obj *objCache[256];
11260 const unsigned char *u = (unsigned char*) str;
11261 memset(objCache, 0, sizeof(objCache));
11262 for (i = 0; i < strLen; i++) {
11265 if (objCache[c] == NULL)
11266 objCache[c] = Jim_NewStringObj(interp, (char*)u+i, 1);
11267 Jim_ListAppendElement(interp, resObjPtr, objCache[c]);
11270 Jim_SetResult(interp, resObjPtr);
11275 static int Jim_JoinCoreCommand(Jim_Interp *interp, int argc,
11276 Jim_Obj *const *argv)
11278 const char *joinStr;
11279 int joinStrLen, i, listLen;
11280 Jim_Obj *resObjPtr;
11282 if (argc != 2 && argc != 3) {
11283 Jim_WrongNumArgs(interp, 1, argv, "list ?joinString?");
11291 joinStr = Jim_GetString(argv[2], &joinStrLen);
11293 Jim_ListLength(interp, argv[1], &listLen);
11294 resObjPtr = Jim_NewStringObj(interp, NULL, 0);
11296 for (i = 0; i < listLen; i++) {
11299 Jim_ListIndex(interp, argv[1], i, &objPtr, JIM_NONE);
11300 Jim_AppendObj(interp, resObjPtr, objPtr);
11301 if (i+1 != listLen) {
11302 Jim_AppendString(interp, resObjPtr, joinStr, joinStrLen);
11305 Jim_SetResult(interp, resObjPtr);
11310 static int Jim_FormatCoreCommand(Jim_Interp *interp, int argc,
11311 Jim_Obj *const *argv)
11316 Jim_WrongNumArgs(interp, 1, argv, "formatString ?arg arg ...?");
11319 objPtr = Jim_FormatString(interp, argv[1], argc-2, argv+2);
11320 if (objPtr == NULL)
11322 Jim_SetResult(interp, objPtr);
11327 static int Jim_ScanCoreCommand(Jim_Interp *interp, int argc,
11328 Jim_Obj *const *argv)
11330 Jim_Obj *listPtr, **outVec;
11331 int outc, i, count = 0;
11334 Jim_WrongNumArgs(interp, 1, argv, "string formatString ?varName ...?");
11337 if (argv[2]->typePtr != &scanFmtStringObjType)
11338 SetScanFmtFromAny(interp, argv[2]);
11339 if (FormatGetError(argv[2]) != 0) {
11340 Jim_SetResultString(interp, FormatGetError(argv[2]), -1);
11344 int maxPos = FormatGetMaxPos(argv[2]);
11345 int count = FormatGetCnvCount(argv[2]);
11346 if (maxPos > argc-3) {
11347 Jim_SetResultString(interp, "\"%n$\" argument index out of range", -1);
11349 } else if (count != 0 && count < argc-3) {
11350 Jim_SetResultString(interp, "variable is not assigned by any "
11351 "conversion specifiers", -1);
11353 } else if (count > argc-3) {
11354 Jim_SetResultString(interp, "different numbers of variable names and "
11355 "field specifiers", -1);
11359 listPtr = Jim_ScanString(interp, argv[1], argv[2], JIM_ERRMSG);
11364 if (listPtr != 0 && listPtr != (Jim_Obj*)EOF)
11365 Jim_ListLength(interp, listPtr, &len);
11366 if (listPtr == (Jim_Obj*)EOF || len == 0) { // XXX
11367 Jim_SetResult(interp, Jim_NewIntObj(interp, -1));
11370 JimListGetElements(interp, listPtr, &outc, &outVec);
11371 for (i = 0; i < outc; ++i) {
11372 if (Jim_Length(outVec[i]) > 0) {
11374 if (Jim_SetVariable(interp, argv[3+i], outVec[i]) != JIM_OK)
11378 Jim_FreeNewObj(interp, listPtr);
11379 Jim_SetResult(interp, Jim_NewIntObj(interp, count));
11381 if (listPtr == (Jim_Obj*)EOF) {
11382 Jim_SetResult(interp, Jim_NewListObj(interp, 0, 0));
11385 Jim_SetResult(interp, listPtr);
11389 Jim_FreeNewObj(interp, listPtr);
11394 static int Jim_ErrorCoreCommand(Jim_Interp *interp, int argc,
11395 Jim_Obj *const *argv)
11398 Jim_WrongNumArgs(interp, 1, argv, "message");
11401 Jim_SetResult(interp, argv[1]);
11406 static int Jim_LrangeCoreCommand(Jim_Interp *interp, int argc,
11407 Jim_Obj *const *argv)
11412 Jim_WrongNumArgs(interp, 1, argv, "list first last");
11415 if ((objPtr = Jim_ListRange(interp, argv[1], argv[2], argv[3])) == NULL)
11417 Jim_SetResult(interp, objPtr);
11422 static int Jim_EnvCoreCommand(Jim_Interp *interp, int argc,
11423 Jim_Obj *const *argv)
11429 Jim_WrongNumArgs(interp, 1, argv, "varName");
11432 key = Jim_GetString(argv[1], NULL);
11435 Jim_SetResult(interp, Jim_NewEmptyStringObj(interp));
11436 Jim_AppendStrings(interp, Jim_GetResult(interp),
11437 "environment variable \"",
11438 key, "\" does not exist", NULL);
11441 Jim_SetResult(interp, Jim_NewStringObj(interp, val, -1));
11446 static int Jim_SourceCoreCommand(Jim_Interp *interp, int argc,
11447 Jim_Obj *const *argv)
11452 Jim_WrongNumArgs(interp, 1, argv, "fileName");
11455 retval = Jim_EvalFile(interp, Jim_GetString(argv[1], NULL));
11456 if (retval == JIM_RETURN)
11462 static int Jim_LreverseCoreCommand(Jim_Interp *interp, int argc,
11463 Jim_Obj *const *argv)
11465 Jim_Obj *revObjPtr, **ele;
11469 Jim_WrongNumArgs(interp, 1, argv, "list");
11472 JimListGetElements(interp, argv[1], &len, &ele);
11474 revObjPtr = Jim_NewListObj(interp, NULL, 0);
11476 ListAppendElement(revObjPtr, ele[len--]);
11477 Jim_SetResult(interp, revObjPtr);
11481 static int JimRangeLen(jim_wide start, jim_wide end, jim_wide step)
11485 if (step == 0) return -1;
11486 if (start == end) return 0;
11487 else if (step > 0 && start > end) return -1;
11488 else if (step < 0 && end > start) return -1;
11490 if (len < 0) len = -len; /* abs(len) */
11491 if (step < 0) step = -step; /* abs(step) */
11492 len = 1 + ((len-1)/step);
11493 /* We can truncate safely to INT_MAX, the range command
11494 * will always return an error for a such long range
11495 * because Tcl lists can't be so long. */
11496 if (len > INT_MAX) len = INT_MAX;
11497 return (int)((len < 0) ? -1 : len);
11501 static int Jim_RangeCoreCommand(Jim_Interp *interp, int argc,
11502 Jim_Obj *const *argv)
11504 jim_wide start = 0, end, step = 1;
11508 if (argc < 2 || argc > 4) {
11509 Jim_WrongNumArgs(interp, 1, argv, "?start? end ?step?");
11513 if (Jim_GetWide(interp, argv[1], &end) != JIM_OK)
11516 if (Jim_GetWide(interp, argv[1], &start) != JIM_OK ||
11517 Jim_GetWide(interp, argv[2], &end) != JIM_OK)
11519 if (argc == 4 && Jim_GetWide(interp, argv[3], &step) != JIM_OK)
11522 if ((len = JimRangeLen(start, end, step)) == -1) {
11523 Jim_SetResultString(interp, "Invalid (infinite?) range specified", -1);
11526 objPtr = Jim_NewListObj(interp, NULL, 0);
11527 for (i = 0; i < len; i++)
11528 ListAppendElement(objPtr, Jim_NewIntObj(interp, start+i*step));
11529 Jim_SetResult(interp, objPtr);
11534 static int Jim_RandCoreCommand(Jim_Interp *interp, int argc,
11535 Jim_Obj *const *argv)
11537 jim_wide min = 0, max, len, maxMul;
11539 if (argc < 1 || argc > 3) {
11540 Jim_WrongNumArgs(interp, 1, argv, "?min? max");
11544 max = JIM_WIDE_MAX;
11545 } else if (argc == 2) {
11546 if (Jim_GetWide(interp, argv[1], &max) != JIM_OK)
11548 } else if (argc == 3) {
11549 if (Jim_GetWide(interp, argv[1], &min) != JIM_OK ||
11550 Jim_GetWide(interp, argv[2], &max) != JIM_OK)
11555 Jim_SetResultString(interp, "Invalid arguments (max < min)", -1);
11558 maxMul = JIM_WIDE_MAX - (len ? (JIM_WIDE_MAX%len) : 0);
11562 JimRandomBytes(interp, &r, sizeof(jim_wide));
11563 if (r < 0 || r >= maxMul) continue;
11564 r = (len == 0) ? 0 : r%len;
11565 Jim_SetResult(interp, Jim_NewIntObj(interp, min+r));
11571 static int Jim_PackageCoreCommand(Jim_Interp *interp, int argc,
11572 Jim_Obj *const *argv)
11575 const char *options[] = {
11576 "require", "provide", NULL
11578 enum {OPT_REQUIRE, OPT_PROVIDE};
11581 Jim_WrongNumArgs(interp, 1, argv, "option ?arguments ...?");
11584 if (Jim_GetEnum(interp, argv[1], options, &option, "option",
11585 JIM_ERRMSG) != JIM_OK)
11588 if (option == OPT_REQUIRE) {
11592 if (Jim_CompareStringImmediate(interp, argv[2], "-exact")) {
11597 if (argc != 3 && argc != 4) {
11598 Jim_WrongNumArgs(interp, 2, argv, "?-exact? package ?version?");
11601 ver = Jim_PackageRequire(interp, Jim_GetString(argv[2], NULL),
11602 argc == 4 ? Jim_GetString(argv[3], NULL) : "",
11606 Jim_SetResultString(interp, ver, -1);
11607 } else if (option == OPT_PROVIDE) {
11609 Jim_WrongNumArgs(interp, 2, argv, "package version");
11612 return Jim_PackageProvide(interp, Jim_GetString(argv[2], NULL),
11613 Jim_GetString(argv[3], NULL), JIM_ERRMSG);
11620 Jim_CmdProc cmdProc;
11621 } Jim_CoreCommandsTable[] = {
11622 {"set", Jim_SetCoreCommand},
11623 {"unset", Jim_UnsetCoreCommand},
11624 {"puts", Jim_PutsCoreCommand},
11625 {"+", Jim_AddCoreCommand},
11626 {"*", Jim_MulCoreCommand},
11627 {"-", Jim_SubCoreCommand},
11628 {"/", Jim_DivCoreCommand},
11629 {"incr", Jim_IncrCoreCommand},
11630 {"while", Jim_WhileCoreCommand},
11631 {"for", Jim_ForCoreCommand},
11632 {"foreach", Jim_ForeachCoreCommand},
11633 {"lmap", Jim_LmapCoreCommand},
11634 {"if", Jim_IfCoreCommand},
11635 {"switch", Jim_SwitchCoreCommand},
11636 {"list", Jim_ListCoreCommand},
11637 {"lindex", Jim_LindexCoreCommand},
11638 {"lset", Jim_LsetCoreCommand},
11639 {"llength", Jim_LlengthCoreCommand},
11640 {"lappend", Jim_LappendCoreCommand},
11641 {"linsert", Jim_LinsertCoreCommand},
11642 {"lsort", Jim_LsortCoreCommand},
11643 {"append", Jim_AppendCoreCommand},
11644 {"debug", Jim_DebugCoreCommand},
11645 {"eval", Jim_EvalCoreCommand},
11646 {"uplevel", Jim_UplevelCoreCommand},
11647 {"expr", Jim_ExprCoreCommand},
11648 {"break", Jim_BreakCoreCommand},
11649 {"continue", Jim_ContinueCoreCommand},
11650 {"proc", Jim_ProcCoreCommand},
11651 {"concat", Jim_ConcatCoreCommand},
11652 {"return", Jim_ReturnCoreCommand},
11653 {"upvar", Jim_UpvarCoreCommand},
11654 {"global", Jim_GlobalCoreCommand},
11655 {"string", Jim_StringCoreCommand},
11656 {"time", Jim_TimeCoreCommand},
11657 {"exit", Jim_ExitCoreCommand},
11658 {"catch", Jim_CatchCoreCommand},
11659 {"ref", Jim_RefCoreCommand},
11660 {"getref", Jim_GetrefCoreCommand},
11661 {"setref", Jim_SetrefCoreCommand},
11662 {"finalize", Jim_FinalizeCoreCommand},
11663 {"collect", Jim_CollectCoreCommand},
11664 {"rename", Jim_RenameCoreCommand},
11665 {"dict", Jim_DictCoreCommand},
11666 {"load", Jim_LoadCoreCommand},
11667 {"subst", Jim_SubstCoreCommand},
11668 {"info", Jim_InfoCoreCommand},
11669 {"split", Jim_SplitCoreCommand},
11670 {"join", Jim_JoinCoreCommand},
11671 {"format", Jim_FormatCoreCommand},
11672 {"scan", Jim_ScanCoreCommand},
11673 {"error", Jim_ErrorCoreCommand},
11674 {"lrange", Jim_LrangeCoreCommand},
11675 {"env", Jim_EnvCoreCommand},
11676 {"source", Jim_SourceCoreCommand},
11677 {"lreverse", Jim_LreverseCoreCommand},
11678 {"range", Jim_RangeCoreCommand},
11679 {"rand", Jim_RandCoreCommand},
11680 {"package", Jim_PackageCoreCommand},
11681 {"tailcall", Jim_TailcallCoreCommand},
11685 /* Some Jim core command is actually a procedure written in Jim itself. */
11686 static void Jim_RegisterCoreProcedures(Jim_Interp *interp)
11688 Jim_Eval(interp, (char*)
11689 "proc lambda {arglist args} {\n"
11690 " set name [ref {} function lambdaFinalizer]\n"
11691 " uplevel 1 [list proc $name $arglist {expand}$args]\n"
11694 "proc lambdaFinalizer {name val} {\n"
11695 " rename $name {}\n"
11700 void Jim_RegisterCoreCommands(Jim_Interp *interp)
11704 while(Jim_CoreCommandsTable[i].name != NULL) {
11705 Jim_CreateCommand(interp,
11706 Jim_CoreCommandsTable[i].name,
11707 Jim_CoreCommandsTable[i].cmdProc,
11711 Jim_RegisterCoreProcedures(interp);
11714 /* -----------------------------------------------------------------------------
11715 * Interactive prompt
11716 * ---------------------------------------------------------------------------*/
11717 void Jim_PrintErrorMessage(Jim_Interp *interp)
11721 fprintf(interp->stderr, "Runtime error, file \"%s\", line %d:" JIM_NL,
11722 interp->errorFileName, interp->errorLine);
11723 fprintf(interp->stderr, " %s" JIM_NL,
11724 Jim_GetString(interp->result, NULL));
11725 Jim_ListLength(interp, interp->stackTrace, &len);
11726 for (i = 0; i < len; i+= 3) {
11728 const char *proc, *file, *line;
11730 Jim_ListIndex(interp, interp->stackTrace, i, &objPtr, JIM_NONE);
11731 proc = Jim_GetString(objPtr, NULL);
11732 Jim_ListIndex(interp, interp->stackTrace, i+1, &objPtr,
11734 file = Jim_GetString(objPtr, NULL);
11735 Jim_ListIndex(interp, interp->stackTrace, i+2, &objPtr,
11737 line = Jim_GetString(objPtr, NULL);
11738 fprintf(interp->stderr,
11739 "In procedure '%s' called at file \"%s\", line %s" JIM_NL,
11744 int Jim_InteractivePrompt(Jim_Interp *interp)
11746 int retcode = JIM_OK;
11747 Jim_Obj *scriptObjPtr;
11749 fprintf(interp->stdout, "Welcome to Jim version %d.%d, "
11750 "Copyright (c) 2005 Salvatore Sanfilippo" JIM_NL,
11751 JIM_VERSION / 100, JIM_VERSION % 100);
11752 fprintf(interp->stdout,
11753 "CVS ID: $Id: jim.c,v 1.1.1.1 2008/07/31 20:44:21 mmahesh Exp $"
11755 Jim_SetVariableStrWithStr(interp, "jim_interactive", "1");
11758 const char *result;
11759 const char *retcodestr[] = {
11760 "ok", "error", "return", "break", "continue", "eval", "exit"
11764 if (retcode != 0) {
11765 if (retcode >= 2 && retcode <= 6)
11766 fprintf(interp->stdout, "[%s] . ", retcodestr[retcode]);
11768 fprintf(interp->stdout, "[%d] . ", retcode);
11770 fprintf(interp->stdout, ". ");
11771 fflush(interp->stdout);
11772 scriptObjPtr = Jim_NewStringObj(interp, "", 0);
11773 Jim_IncrRefCount(scriptObjPtr);
11779 if (fgets(buf, 1024, interp->stdin) == NULL) {
11780 Jim_DecrRefCount(interp, scriptObjPtr);
11783 Jim_AppendString(interp, scriptObjPtr, buf, -1);
11784 str = Jim_GetString(scriptObjPtr, &len);
11785 if (Jim_ScriptIsComplete(str, len, &state))
11787 fprintf(interp->stdout, "%c> ", state);
11790 retcode = Jim_EvalObj(interp, scriptObjPtr);
11791 Jim_DecrRefCount(interp, scriptObjPtr);
11792 result = Jim_GetString(Jim_GetResult(interp), &reslen);
11793 if (retcode == JIM_ERR) {
11794 Jim_PrintErrorMessage(interp);
11795 } else if (retcode == JIM_EXIT) {
11796 exit(Jim_GetExitCode(interp));
11799 fwrite(result, 1, reslen, interp->stdout);
11800 fprintf(interp->stdout, JIM_NL);