src/main/webapp/plugins/editor.md/lib/codemirror/addon/lint/javascript-lint.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";
  // declare global: JSHINT

  var bogus = [ "Dangerous comment" ];

  var warnings = [ [ "Expected '{'",
                     "Statement body should be inside '{ }' braces." ] ];

  var errors = [ "Missing semicolon", "Extra comma", "Missing property name",
                 "Unmatched ", " and instead saw", " is not defined",
                 "Unclosed string", "Stopping, unable to continue" ];

  function validator(text, options) {
    if (!window.JSHINT) return [];
    JSHINT(text, options);
    var errors = JSHINT.data().errors, result = [];
    if (errors) parseErrors(errors, result);
    return result;
  }

  CodeMirror.registerHelper("lint", "javascript", validator);

  function cleanup(error) {
    // All problems are warnings by default
    fixWith(error, warnings, "warning", true);
    fixWith(error, errors, "error");

    return isBogus(error) ? null : error;
  }

  function fixWith(error, fixes, severity, force) {
    var description, fix, find, replace, found;

    description = error.description;

    for ( var i = 0; i < fixes.length; i++) {
      fix = fixes[i];
      find = (typeof fix === "string" ? fix : fix[0]);
      replace = (typeof fix === "string" ? null : fix[1]);
      found = description.indexOf(find) !== -1;

      if (force || found) {
        error.severity = severity;
      }
      if (found && replace) {
        error.description = replace;
      }
    }
  }