1// CodeMirror, copyright (c) by Marijn Haverbeke and others
  2// Distributed under an MIT license: https://codemirror.net/LICENSE
  3
  4/*
  5  DTD mode
  6  Ported to CodeMirror by Peter Kroon <plakroon@gmail.com>
  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
 21CodeMirror.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", "seperator");
 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.match(/\]\s+|\]/) )n=n-1;
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
140CodeMirror.defineMIME("application/xml-dtd", "dtd");
141
142});