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   1  // CodeMirror, copyright (c) by Marijn Haverbeke and others
   2  // Distributed under an MIT license: https://codemirror.net/5/LICENSE
   3  
   4  /*
   5    DTD mode
   6    Ported to CodeMirror by Peter Kroon <[email protected]>
   7    Report bugs/issues here: https://github.com/codemirror/CodeMirror/issues
   8    GitHub: @peterkroon
   9  */
  10  
  11  (function(mod) {
  12    if (typeof exports == "object" && typeof module == "object") // CommonJS
  13      mod(require("../../lib/codemirror"));
  14    else if (typeof define == "function" && define.amd) // AMD
  15      define(["../../lib/codemirror"], mod);
  16    else // Plain browser env
  17      mod(CodeMirror);
  18  })(function(CodeMirror) {
  19  "use strict";
  20  
  21  CodeMirror.defineMode("dtd", function(config) {
  22    var indentUnit = config.indentUnit, type;
  23    function ret(style, tp) {type = tp; return style;}
  24  
  25    function tokenBase(stream, state) {
  26      var ch = stream.next();
  27  
  28      if (ch == "<" && stream.eat("!") ) {
  29        if (stream.eatWhile(/[\-]/)) {
  30          state.tokenize = tokenSGMLComment;
  31          return tokenSGMLComment(stream, state);
  32        } else if (stream.eatWhile(/[\w]/)) return ret("keyword", "doindent");
  33      } else if (ch == "<" && stream.eat("?")) { //xml declaration
  34        state.tokenize = inBlock("meta", "?>");
  35        return ret("meta", ch);
  36      } else if (ch == "#" && stream.eatWhile(/[\w]/)) return ret("atom", "tag");
  37      else if (ch == "|") return ret("keyword", "separator");
  38      else if (ch.match(/[\(\)\[\]\-\.,\+\?>]/)) return ret(null, ch);//if(ch === ">") return ret(null, "endtag"); else
  39      else if (ch.match(/[\[\]]/)) return ret("rule", ch);
  40      else if (ch == "\"" || ch == "'") {
  41        state.tokenize = tokenString(ch);
  42        return state.tokenize(stream, state);
  43      } else if (stream.eatWhile(/[a-zA-Z\?\+\d]/)) {
  44        var sc = stream.current();
  45        if( sc.substr(sc.length-1,sc.length).match(/\?|\+/) !== null )stream.backUp(1);
  46        return ret("tag", "tag");
  47      } else if (ch == "%" || ch == "*" ) return ret("number", "number");
  48      else {
  49        stream.eatWhile(/[\w\\\-_%.{,]/);
  50        return ret(null, null);
  51      }
  52    }
  53  
  54    function tokenSGMLComment(stream, state) {
  55      var dashes = 0, ch;
  56      while ((ch = stream.next()) != null) {
  57        if (dashes >= 2 && ch == ">") {
  58          state.tokenize = tokenBase;
  59          break;
  60        }
  61        dashes = (ch == "-") ? dashes + 1 : 0;
  62      }
  63      return ret("comment", "comment");
  64    }
  65  
  66    function tokenString(quote) {
  67      return function(stream, state) {
  68        var escaped = false, ch;
  69        while ((ch = stream.next()) != null) {
  70          if (ch == quote && !escaped) {
  71            state.tokenize = tokenBase;
  72            break;
  73          }
  74          escaped = !escaped && ch == "\\";
  75        }
  76        return ret("string", "tag");
  77      };
  78    }
  79  
  80    function inBlock(style, terminator) {
  81      return function(stream, state) {
  82        while (!stream.eol()) {
  83          if (stream.match(terminator)) {
  84            state.tokenize = tokenBase;
  85            break;
  86          }
  87          stream.next();
  88        }
  89        return style;
  90      };
  91    }
  92  
  93    return {
  94      startState: function(base) {
  95        return {tokenize: tokenBase,
  96                baseIndent: base || 0,
  97                stack: []};
  98      },
  99  
 100      token: function(stream, state) {
 101        if (stream.eatSpace()) return null;
 102        var style = state.tokenize(stream, state);
 103  
 104        var context = state.stack[state.stack.length-1];
 105        if (stream.current() == "[" || type === "doindent" || type == "[") state.stack.push("rule");
 106        else if (type === "endtag") state.stack[state.stack.length-1] = "endtag";
 107        else if (stream.current() == "]" || type == "]" || (type == ">" && context == "rule")) state.stack.pop();
 108        else if (type == "[") state.stack.push("[");
 109        return style;
 110      },
 111  
 112      indent: function(state, textAfter) {
 113        var n = state.stack.length;
 114  
 115        if( textAfter.charAt(0) === ']' )n--;
 116        else if(textAfter.substr(textAfter.length-1, textAfter.length) === ">"){
 117          if(textAfter.substr(0,1) === "<") {}
 118          else if( type == "doindent" && textAfter.length > 1 ) {}
 119          else if( type == "doindent")n--;
 120          else if( type == ">" && textAfter.length > 1) {}
 121          else if( type == "tag" && textAfter !== ">") {}
 122          else if( type == "tag" && state.stack[state.stack.length-1] == "rule")n--;
 123          else if( type == "tag")n++;
 124          else if( textAfter === ">" && state.stack[state.stack.length-1] == "rule" && type === ">")n--;
 125          else if( textAfter === ">" && state.stack[state.stack.length-1] == "rule") {}
 126          else if( textAfter.substr(0,1) !== "<" && textAfter.substr(0,1) === ">" )n=n-1;
 127          else if( textAfter === ">") {}
 128          else n=n-1;
 129          //over rule them all
 130          if(type == null || type == "]")n--;
 131        }
 132  
 133        return state.baseIndent + n * indentUnit;
 134      },
 135  
 136      electricChars: "]>"
 137    };
 138  });
 139  
 140  CodeMirror.defineMIME("application/xml-dtd", "dtd");
 141  
 142  });