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

(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('mllike', function(_config, parserConfig) {
  var words = {
    'let': 'keyword',
    'rec': 'keyword',
    'in': 'keyword',
    'of': 'keyword',
    'and': 'keyword',
    'if': 'keyword',
    'then': 'keyword',
    'else': 'keyword',
    'for': 'keyword',
    'to': 'keyword',
    'while': 'keyword',
    'do': 'keyword',
    'done': 'keyword',
    'fun': 'keyword',
    'function': 'keyword',
    'val': 'keyword',
    'type': 'keyword',
    'mutable': 'keyword',
    'match': 'keyword',
    'with': 'keyword',
    'try': 'keyword',
    'open': 'builtin',
    'ignore': 'builtin',
    'begin': 'keyword',
    'end': 'keyword'
  };

  var extraWords = parserConfig.extraWords || {};
  for (var prop in extraWords) {
    if (extraWords.hasOwnProperty(prop)) {
      words[prop] = parserConfig.extraWords[prop];
    }
  }

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

    if (ch === '"') {
      state.tokenize = tokenString;
      return state.tokenize(stream, state);
    }
    if (ch === '(') {
      if (stream.eat('*')) {
        state.commentLevel++;
        state.tokenize = tokenComment;
        return state.tokenize(stream, state);
      }
    }
    if (ch === '~') {
      stream.eatWhile(/\w/);
      return 'variable-2';
    }
    if (ch === '`') {
      stream.eatWhile(/\w/);
      return 'quote';
    }
    if (ch === '/' && parserConfig.slashComments && stream.eat('/')) {
      stream.skipToEnd();
      return 'comment';
    }
    if (/\d/.test(ch)) {
      stream.eatWhile(/[\d]/);
      if (stream.eat('.')) {
        stream.eatWhile(/[\d]/);
      }
      return 'number';
    }
    if ( /[+\-*&%=<>!?|]/.test(ch)) {
      return 'operator';
    }
    stream.eatWhile(/\w/);
    var cur = stream.current();
    return words.hasOwnProperty(cur) ? words[cur] : 'variable';
  }

  function tokenString(stream, state) {
    var next, end = false, escaped = false;
    while ((next = stream.next()) != null) {
      if (next === '"' && !escaped) {
        end = true;
        break;
      }
      escaped = !escaped && next === '\\';
    }
    if (end && !escaped) {
      state.tokenize = tokenBase;
    }
    return 'string';
  };

  function tokenComment(stream, state) {
    var prev, next;
    while(state.commentLevel > 0 && (next = stream.next()) != null) {
      if (prev === '(' && next === '*') state.commentLevel++;
      if (prev === '*' && next === ')') state.commentLevel--;
      prev = next;
    }
    if (state.commentLevel <= 0) {
      state.tokenize = tokenBase;
    }
    return 'comment';
  }

  return {
    startState: function() {return {tokenize: tokenBase, commentLevel: 0};},
    token: function(stream, state) {
      if (stream.eatSpace()) return null;
      return state.tokenize(stream, state);
    },

    blockCommentStart: "(*",
    blockCommentEnd: "*)",
    lineComment: parserConfig.slashComments ? "//" : null
  };
});

CodeMirror.defineMIME('text/x-ocaml', {
  name: 'mllike',
  extraWords: {
    'succ': 'keyword',
    'trace': 'builtin',
    'exit': 'builtin',
    'print_string': 'builtin',
    'print_endline': 'builtin',
    'true': 'atom',
    'false': 'atom',
    'raise': 'keyword'
  }
});

CodeMirror.defineMIME('text/x-fsharp', {
  name: 'mllike',
  extraWords: {
    'abstract': 'keyword',
    'as': 'keyword',
    'assert': 'keyword',
    'base': 'keyword',
    'class': 'keyword',
    'default': 'keyword',
    'delegate': 'keyword',
    'downcast': 'keyword',
    'downto': 'keyword',
    'elif': 'keyword',
    'exception': 'keyword',
    'extern': 'keyword',
    'finally': 'keyword',
    'global': 'keyword',
    'inherit': 'keyword',
    'inline': 'keyword',
    'interface': 'keyword',
    'internal': 'keyword',
    'lazy': 'keyword',
    'let!': 'keyword',
    'member' : 'keyword',
    'module': 'keyword',
    'namespace': 'keyword',
    'new': 'keyword',
    'null': 'keyword',
    'override': 'keyword',
    'private': 'keyword',
    'public': 'keyword',
    'return': 'keyword',
    'return!': 'keyword',
    'select': 'keyword',
    'static': 'keyword',
    'struct': 'keyword',
    'upcast': 'keyword',
    'use': 'keyword',
    'use!': 'keyword',
    'val': 'keyword',
    'when': 'keyword',
    'yield': 'keyword',
    'yield!': 'keyword',

    'List': 'builtin',
    'Seq': 'builtin',
    'Map': 'builtin',
    'Set': 'builtin',
    'int': 'builtin',
    'string': 'builtin',
    'raise': 'builtin',
    'failwith': 'builtin',
    'not': 'builtin',
    'true': 'builtin',
    'false': 'builtin'
  },
  slashComments: true
});

});