ctags/parsers/html.c

   1 /*
   2 *   Copyright (c) 2003, Darren Hiebert
   3 *
   4 *   This source code is released for free distribution under the terms of the
   5 *   GNU General Public License version 2 or (at your option) any later version.
   6 *
   7 *   This module contains functions for generating tags for HTML language
   8 *   files.
   9 */
  10
  11 /*
  12 *   INCLUDE FILES
  13 */
  14 #include "general.h"  /* must always come first */
  15 #include "parse.h"
  16 #include "routines.h"
  17
  18 /*
  19 *   FUNCTION DEFINITIONS
  20 */
  21
  22 static void installHtmlRegex (const langType language)
  23 {
  24 #define POSSIBLE_ATTRIBUTES "([ \t]+[a-z]+=\"?[^>\"]*\"?)*"
  25
  26         addTagRegex (language,
  27                 "<a"
  28                 POSSIBLE_ATTRIBUTES
  29                 "[ \t]+name=\"?([^>\"]+)\"?"
  30                 POSSIBLE_ATTRIBUTES
  31                 "[ \t]*>",
  32                 "\\2", "a,anchor,named anchors", "i");
  33
  34         addTagRegex (language, "^[ \t]*function[ \t]*([A-Za-z0-9_]+)[ \t]*\\(",
  35                 "\\1", "f,function,JavaScript functions", NULL);
  36
  37 /* the following matches headings with tags inside like
  38  * <h1><a href="#id109"><i>Some Text</i></a></h1>
  39  * and
  40  * <h1>Some Text</h1> */
  41 #define SPACES "[ \t]*"
  42 #define ATTRS "[^>]*"
  43 #define INNER_HEADING \
  44         ATTRS ">" SPACES "(<" ATTRS ">" SPACES ")*([^<]+).*"
  45
  46         addTagRegex (language,
  47                 "<h1" INNER_HEADING "</h1>",
  48                 "\\2", "n,namespace,H1 heading", "i");
  49
  50         addTagRegex (language,
  51                 "<h2" INNER_HEADING "</h2>",
  52                 "\\2", "c,class,H2 heading", "i");
  53
  54         addTagRegex (language,
  55                 "<h3" INNER_HEADING "</h3>",
  56                 "\\2", "v,variable,H3 heading", "i");
  57 }
  58
  59 /* Create parser definition structure */
  60 extern parserDefinition* HtmlParser (void)
  61 {
  62         static const char *const extensions [] = { "htm", "html", NULL };
  63         parserDefinition *const def = parserNew ("HTML");
  64         def->extensions = extensions;
  65         def->initialize = installHtmlRegex;
  66         def->regex      = TRUE;
  67         return def;
  68 }
  69
  70 /* vi:set tabstop=4 shiftwidth=4: */