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136 lines
4.3 KiB
136 lines
4.3 KiB
// CodeMirror, copyright (c) by Marijn Haverbeke and others
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// Distributed under an MIT license: http://codemirror.net/LICENSE
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(function(mod) {
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if (typeof exports == "object" && typeof module == "object") // CommonJS
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mod(require("../../lib/codemirror"));
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else if (typeof define == "function" && define.amd) // AMD
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define(["../../lib/codemirror"], mod);
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else // Plain browser env
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mod(CodeMirror);
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})(function(CodeMirror) {
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"use strict";
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// declare global: JSHINT
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var bogus = [ "Dangerous comment" ];
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var warnings = [ [ "Expected '{'",
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"Statement body should be inside '{ }' braces." ] ];
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var errors = [ "Missing semicolon", "Extra comma", "Missing property name",
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"Unmatched ", " and instead saw", " is not defined",
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"Unclosed string", "Stopping, unable to continue" ];
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function validator(text, options) {
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if (!window.JSHINT) return [];
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JSHINT(text, options);
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var errors = JSHINT.data().errors, result = [];
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if (errors) parseErrors(errors, result);
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return result;
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}
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CodeMirror.registerHelper("lint", "javascript", validator);
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function cleanup(error) {
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// All problems are warnings by default
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fixWith(error, warnings, "warning", true);
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fixWith(error, errors, "error");
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return isBogus(error) ? null : error;
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}
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function fixWith(error, fixes, severity, force) {
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var description, fix, find, replace, found;
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description = error.description;
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for ( var i = 0; i < fixes.length; i++) {
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fix = fixes[i];
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find = (typeof fix === "string" ? fix : fix[0]);
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replace = (typeof fix === "string" ? null : fix[1]);
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found = description.indexOf(find) !== -1;
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if (force || found) {
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error.severity = severity;
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}
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if (found && replace) {
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error.description = replace;
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}
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}
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}
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function isBogus(error) {
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var description = error.description;
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for ( var i = 0; i < bogus.length; i++) {
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if (description.indexOf(bogus[i]) !== -1) {
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return true;
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}
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}
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return false;
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}
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function parseErrors(errors, output) {
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for ( var i = 0; i < errors.length; i++) {
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var error = errors[i];
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if (error) {
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var linetabpositions, index;
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linetabpositions = [];
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// This next block is to fix a problem in jshint. Jshint
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// replaces
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// all tabs with spaces then performs some checks. The error
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// positions (character/space) are then reported incorrectly,
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// not taking the replacement step into account. Here we look
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// at the evidence line and try to adjust the character position
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// to the correct value.
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if (error.evidence) {
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// Tab positions are computed once per line and cached
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var tabpositions = linetabpositions[error.line];
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if (!tabpositions) {
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var evidence = error.evidence;
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tabpositions = [];
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// ugggh phantomjs does not like this
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// forEachChar(evidence, function(item, index) {
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Array.prototype.forEach.call(evidence, function(item,
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index) {
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if (item === '\t') {
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// First col is 1 (not 0) to match error
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// positions
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tabpositions.push(index + 1);
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}
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});
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linetabpositions[error.line] = tabpositions;
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}
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if (tabpositions.length > 0) {
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var pos = error.character;
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tabpositions.forEach(function(tabposition) {
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if (pos > tabposition) pos -= 1;
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});
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error.character = pos;
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}
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}
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var start = error.character - 1, end = start + 1;
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if (error.evidence) {
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index = error.evidence.substring(start).search(/.\b/);
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if (index > -1) {
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end += index;
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}
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}
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// Convert to format expected by validation service
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error.description = error.reason;// + "(jshint)";
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error.start = error.character;
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error.end = end;
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error = cleanup(error);
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if (error)
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output.push({message: error.description,
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severity: error.severity,
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from: CodeMirror.Pos(error.line - 1, start),
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to: CodeMirror.Pos(error.line - 1, end)});
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}
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}
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}
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});
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