Incs/codemirror/mode/pig/pig.js

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

/*
 *      Pig Latin Mode for CodeMirror 2
 *      @author Prasanth Jayachandran
 *      @link   https://github.com/prasanthj/pig-codemirror-2
 *  This implementation is adapted from PL/SQL mode in CodeMirror 2.
 */
(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("pig", function(_config, parserConfig) {
  var keywords = parserConfig.keywords,
  builtins = parserConfig.builtins,
  types = parserConfig.types,
  multiLineStrings = parserConfig.multiLineStrings;

  var isOperatorChar = /[*+\-%<>=&?:\/!|]/;

  function chain(stream, state, f) {
    state.tokenize = f;
    return f(stream, state);
  }

  function tokenComment(stream, state) {
    var isEnd = false;
    var ch;
    while(ch = stream.next()) {
      if(ch == "/" && isEnd) {
        state.tokenize = tokenBase;
        break;
      }
      isEnd = (ch == "*");
    }
    return "comment";
  }

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