wcfsetup/install/files/js/3rdParty/codemirror/addon/lint/javascript-lint.js

   1 (function() {
   2
   3   var bogus = [ "Dangerous comment" ];
   4
   5   var warnings = [ [ "Expected '{'",
   6                      "Statement body should be inside '{ }' braces." ] ];
   7
   8   var errors = [ "Missing semicolon", "Extra comma", "Missing property name",
   9                  "Unmatched ", " and instead saw", " is not defined",
  10                  "Unclosed string", "Stopping, unable to continue" ];
  11
  12   function validator(options, text) {
  13     JSHINT(text, options);
  14     var errors = JSHINT.data().errors, result = [];
  15     if (errors) parseErrors(errors, result);
  16     return result;
  17   }
  18
  19   CodeMirror.javascriptValidatorWithOptions = function(options) {
  20     return function(text) { return validator(options, text); };
  21   };
  22
  23   CodeMirror.javascriptValidator = CodeMirror.javascriptValidatorWithOptions(null);
  24
  25   function cleanup(error) {
  26     // All problems are warnings by default
  27     fixWith(error, warnings, "warning", true);
  28     fixWith(error, errors, "error");
  29
  30     return isBogus(error) ? null : error;
  31   }
  32
  33   function fixWith(error, fixes, severity, force) {
  34     var description, fix, find, replace, found;
  35
  36     description = error.description;
  37
  38     for ( var i = 0; i < fixes.length; i++) {
  39       fix = fixes[i];
  40       find = (typeof fix === "string" ? fix : fix[0]);
  41       replace = (typeof fix === "string" ? null : fix[1]);
  42       found = description.indexOf(find) !== -1;
  43
  44       if (force || found) {
  45         error.severity = severity;
  46       }
  47       if (found && replace) {
  48         error.description = replace;
  49       }
  50     }
  51   }
  52
  53   function isBogus(error) {
  54     var description = error.description;
  55     for ( var i = 0; i < bogus.length; i++) {
  56       if (description.indexOf(bogus[i]) !== -1) {
  57         return true;
  58       }
  59     }
  60     return false;
  61   }
  62
  63   function parseErrors(errors, output) {
  64     for ( var i = 0; i < errors.length; i++) {
  65       var error = errors[i];
  66       if (error) {
  67         var linetabpositions, index;
  68
  69         linetabpositions = [];
  70
  71         // This next block is to fix a problem in jshint. Jshint
  72         // replaces
  73         // all tabs with spaces then performs some checks. The error
  74         // positions (character/space) are then reported incorrectly,
  75         // not taking the replacement step into account. Here we look
  76         // at the evidence line and try to adjust the character position
  77         // to the correct value.
  78         if (error.evidence) {
  79           // Tab positions are computed once per line and cached
  80           var tabpositions = linetabpositions[error.line];
  81           if (!tabpositions) {
  82             var evidence = error.evidence;
  83             tabpositions = [];
  84             // ugggh phantomjs does not like this
  85             // forEachChar(evidence, function(item, index) {
  86             Array.prototype.forEach.call(evidence, function(item,
  87                                                             index) {
  88               if (item === '\t') {
  89                 // First col is 1 (not 0) to match error
  90                 // positions
  91                 tabpositions.push(index + 1);
  92               }
  93             });
  94             linetabpositions[error.line] = tabpositions;
  95           }
  96           if (tabpositions.length > 0) {
  97             var pos = error.character;
  98             tabpositions.forEach(function(tabposition) {
  99               if (pos > tabposition) pos -= 1;
 100             });
 101             error.character = pos;
 102           }
 103         }
 104
 105         var start = error.character - 1, end = start + 1;
 106         if (error.evidence) {
 107           index = error.evidence.substring(start).search(/.\b/);
 108           if (index > -1) {
 109             end += index;
 110           }
 111         }
 112
 113         // Convert to format expected by validation service
 114         error.description = error.reason;// + "(jshint)";
 115         error.start = error.character;
 116         error.end = end;
 117         error = cleanup(error);
 118
 119         if (error)
 120           output.push({message: error.description,
 121                        severity: error.severity,
 122                        from: CodeMirror.Pos(error.line - 1, start),
 123                        to: CodeMirror.Pos(error.line - 1, end)});
 124       }
 125     }
 126   }
 127 })();