Initial revision

[karo-tx-redboot.git] / tools / src / tools / configtool / common / common / flags.cxx

diff --git a/tools/src/tools/configtool/common/common/flags.cxx b/tools/src/tools/configtool/common/common/flags.cxx
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+++ b/tools/src/tools/configtool/common/common/flags.cxx
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+//####COPYRIGHTBEGIN####
+//                                                                          
+// ----------------------------------------------------------------------------
+// Copyright (C) 1998, 1999, 2000 Red Hat, Inc.
+//
+// This program is part of the eCos host tools.
+//
+// This program is free software; you can redistribute it and/or modify it 
+// under the terms of the GNU General Public License as published by the Free 
+// Software Foundation; either version 2 of the License, or (at your option) 
+// any later version.
+// 
+// This program is distributed in the hope that it will be useful, but WITHOUT 
+// ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or 
+// FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for 
+// more details.
+// 
+// You should have received a copy of the GNU General Public License along with
+// this program; if not, write to the Free Software Foundation, Inc., 
+// 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.
+//
+// ----------------------------------------------------------------------------
+//                                                                          
+//####COPYRIGHTEND####
+//==========================================================================
+//
+//      flags.cxx
+//
+//      The implementation of build flags extraction from CDL data
+//
+//==========================================================================
+//==========================================================================
+//#####DESCRIPTIONBEGIN####                                             
+//
+// Author(s):           jld
+// Date:                1999-11-08
+//
+//####DESCRIPTIONEND####
+//==========================================================================
+
+#include "flags.hxx"
+#include <cctype>
+
+static const std::string GLOBAL_FLAGS_PREFIX = "CYGBLD_GLOBAL_";
+static const std::string ADD_FLAGS_SUFFIX    = "_ADD";
+static const std::string REMOVE_FLAGS_SUFFIX = "_REMOVE";
+
+// convert a string of space-separated values into a list of strings
+static void string_to_list (std::string input, std::list <std::string> & output) {
+       std::string item;
+       bool space = true;
+       output.clear ();
+
+       for (unsigned int n = 0; n < input.size (); n++) { // for each char in the string
+               if (isspace (input [n])) { // if char is a space
+                       if (! space) { // if previous char not a space
+                               output.push_back (item); // add item to output list
+                               item.erase (); // clear item string
+                               space = true;
+                       }
+               } else { // char is not a space
+                       item += input [n]; // add char to item string
+                       space = false;
+               }
+       }
+
+       if (! space) { // if final char not a space
+               output.push_back (item); // add final item to output list
+       }
+}
+
+// convert a list of strings into a string of space-separated values
+static std::string list_to_string (std::list <std::string> & input) {
+       std::string output;
+
+       for (std::list <std::string>::iterator item = input.begin (); item != input.end (); item++) { // for each item in the list
+               output += * item + " "; // add item to output string followed by a space
+       }
+
+       if (! output.empty ()) { // if the output string is not empty
+               output.resize (output.size () - 1); // remove the trailing space
+       }
+
+       return output;
+}
+
+// return the build flags of the specified category
+std::string get_flags (const CdlConfiguration config, const CdlBuildInfo_Loadable * build_info, const std::string flag_category) {
+       std::list <std::string> flags_list;
+
+       CdlValuable global_flags = dynamic_cast <CdlValuable> (config->lookup (GLOBAL_FLAGS_PREFIX + flag_category));
+       if (global_flags) { // if there are global flags
+               string_to_list (global_flags->get_value (), flags_list);
+       }
+
+       if (build_info) { // if the caller requires flags specific to a particular loadable
+               // process flags to be removed
+               CdlValuable remove_flags = dynamic_cast <CdlValuable> (config->lookup (build_info->name + "_" + flag_category + REMOVE_FLAGS_SUFFIX));
+               if (remove_flags) { // if there are flags to be removed
+                       std::list <std::string> remove_flags_list;
+                       string_to_list (remove_flags->get_value (), remove_flags_list);
+                       for (std::list <std::string>::iterator item = remove_flags_list.begin (); item != remove_flags_list.end (); item++) {
+                               flags_list.remove (* item); // remove the flag from the list
+                       }
+               }
+
+               // process flags to be added
+               CdlValuable add_flags = dynamic_cast <CdlValuable> (config->lookup (build_info->name + "_" + flag_category + ADD_FLAGS_SUFFIX));
+               if (add_flags) { // if there are flags to be added
+                       std::list <std::string> add_flags_list;
+                       string_to_list (add_flags->get_value (), add_flags_list);
+                       flags_list.splice (flags_list.end (), add_flags_list); // splice the additional flags onto the end of the list
+               }
+       }
+
+       return list_to_string (flags_list);
+}