gdb/common/xml-utils.c

   1 /* Shared helper routines for manipulating XML.
   2
   3    Copyright (C) 2006-2012 Free Software Foundation, Inc.
   4
   5    This file is part of GDB.
   6
   7    This program is free software; you can redistribute it and/or modify
   8    it under the terms of the GNU General Public License as published by
   9    the Free Software Foundation; either version 3 of the License, or
  10    (at your option) any later version.
  11
  12    This program is distributed in the hope that it will be useful,
  13    but WITHOUT ANY WARRANTY; without even the implied warranty of
  14    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  15    GNU General Public License for more details.
  16
  17    You should have received a copy of the GNU General Public License
  18    along with this program.  If not, see <http://www.gnu.org/licenses/>.  */
  19
  20 #ifdef GDBSERVER
  21 #include "server.h"
  22 #else
  23 #include "defs.h"
  24 #endif
  25
  26 #include "xml-utils.h"
  27
  28 #include <string.h>
  29
  30 /* Return a malloc allocated string with special characters from TEXT
  31    replaced by entity references.  */
  32
  33 char *
  34 xml_escape_text (const char *text)
  35 {
  36   char *result;
  37   int i, special;
  38
  39   /* Compute the length of the result.  */
  40   for (i = 0, special = 0; text[i] != '\0'; i++)
  41     switch (text[i])
  42       {
  43       case '\'':
  44       case '\"':
  45         special += 5;
  46         break;
  47       case '&':
  48         special += 4;
  49         break;
  50       case '<':
  51       case '>':
  52         special += 3;
  53         break;
  54       default:
  55         break;
  56       }
  57
  58   /* Expand the result.  */
  59   result = xmalloc (i + special + 1);
  60   for (i = 0, special = 0; text[i] != '\0'; i++)
  61     switch (text[i])
  62       {
  63       case '\'':
  64         strcpy (result + i + special, "&apos;");
  65         special += 5;
  66         break;
  67       case '\"':
  68         strcpy (result + i + special, "&quot;");
  69         special += 5;
  70         break;
  71       case '&':
  72         strcpy (result + i + special, "&amp;");
  73         special += 4;
  74         break;
  75       case '<':
  76         strcpy (result + i + special, "&lt;");
  77         special += 3;
  78         break;
  79       case '>':
  80         strcpy (result + i + special, "&gt;");
  81         special += 3;
  82         break;
  83       default:
  84         result[i + special] = text[i];
  85         break;
  86       }
  87   result[i + special] = '\0';
  88
  89   return result;
  90 }