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✏️ Editing: dtd.js

// CodeMirror, copyright (c) by Marijn Haverbeke and others
// Distributed under an MIT license: https://codemirror.net/LICENSE

/*
  DTD mode
  Ported to CodeMirror by Peter Kroon <plakroon@gmail.com>
  Report bugs/issues here: https://github.com/codemirror/CodeMirror/issues
  GitHub: @peterkroon
*/

(function(mod) {
  if (typeof exports == "object" && typeof module == "object") // CommonJS
    mod(require("../../lib/codemirror"));
  else if (typeof define == "function" && define.amd) // AMD
    define(["../../lib/codemirror"], mod);
  else // Plain browser env
    mod(CodeMirror);
})(function(CodeMirror) {
"use strict";

CodeMirror.defineMode("dtd", function(config) {
  var indentUnit = config.indentUnit, type;
  function ret(style, tp) {type = tp; return style;}

function tokenBase(stream, state) {
    var ch = stream.next();

if (ch == "<" && stream.eat("!") ) {
      if (stream.eatWhile(/[\-]/)) {
        state.tokenize = tokenSGMLComment;
        return tokenSGMLComment(stream, state);
      } else if (stream.eatWhile(/[\w]/)) return ret("keyword", "doindent");
    } else if (ch == "<" && stream.eat("?")) { //xml declaration
      state.tokenize = inBlock("meta", "?>");
      return ret("meta", ch);
    } else if (ch == "#" && stream.eatWhile(/[\w]/)) return ret("atom", "tag");
    else if (ch == "|") return ret("keyword", "separator");
    else if (ch.match(/[\(\)\[\]\-\.,\+\?>]/)) return ret(null, ch);//if(ch === ">") return ret(null, "endtag"); else
    else if (ch.match(/[\[\]]/)) return ret("rule", ch);
    else if (ch == "\"" || ch == "'") {
      state.tokenize = tokenString(ch);
      return state.tokenize(stream, state);
    } else if (stream.eatWhile(/[a-zA-Z\?\+\d]/)) {
      var sc = stream.current();
      if( sc.substr(sc.length-1,sc.length).match(/\?|\+/) !== null )stream.backUp(1);
      return ret("tag", "tag");
    } else if (ch == "%" || ch == "*" ) return ret("number", "number");
    else {
      stream.eatWhile(/[\w\\\-_%.{,]/);
      return ret(null, null);
    }
  }

return {
    startState: function(base) {
      return {tokenize: tokenBase,
              baseIndent: base || 0,
              stack: []};
    },

token: function(stream, state) {
      if (stream.eatSpace()) return null;
      var style = state.tokenize(stream, state);

var context = state.stack[state.stack.length-1];
      if (stream.current() == "[" || type === "doindent" || type == "[") state.stack.push("rule");
      else if (type === "endtag") state.stack[state.stack.length-1] = "endtag";
      else if (stream.current() == "]" || type == "]" || (type == ">" && context == "rule")) state.stack.pop();
      else if (type == "[") state.stack.push("[");
      return style;
    },

indent: function(state, textAfter) {
      var n = state.stack.length;

if( textAfter.charAt(0) === ']' )n--;
      else if(textAfter.substr(textAfter.length-1, textAfter.length) === ">"){
        if(textAfter.substr(0,1) === "<") {}
        else if( type == "doindent" && textAfter.length > 1 ) {}
        else if( type == "doindent")n--;
        else if( type == ">" && textAfter.length > 1) {}
        else if( type == "tag" && textAfter !== ">") {}
        else if( type == "tag" && state.stack[state.stack.length-1] == "rule")n--;
        else if( type == "tag")n++;
        else if( textAfter === ">" && state.stack[state.stack.length-1] == "rule" && type === ">")n--;
        else if( textAfter === ">" && state.stack[state.stack.length-1] == "rule") {}
        else if( textAfter.substr(0,1) !== "<" && textAfter.substr(0,1) === ">" )n=n-1;
        else if( textAfter === ">") {}
        else n=n-1;
        //over rule them all
        if(type == null || type == "]")n--;
      }

return state.baseIndent + n * indentUnit;
    },

electricChars: "]>"
  };
});

CodeMirror.defineMIME("application/xml-dtd", "dtd");

});

MR SKB