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1 // CodeMirror, copyright (c) by Marijn Haverbeke and others
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2 // Distributed under an MIT license: https://codemirror.net/5/LICENSE
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3
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4 // Depends on jshint.js from https://github.com/jshint/jshint
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5
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6 (function(mod) {
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7 if (typeof exports == "object" && typeof module == "object") // CommonJS
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8 mod(require("../../lib/codemirror"));
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9 else if (typeof define == "function" && define.amd) // AMD
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10 define(["../../lib/codemirror"], mod);
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11 else // Plain browser env
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12 mod(CodeMirror);
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13 })(function(CodeMirror) {
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14 "use strict";
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15 // declare global: JSHINT
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16
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17 function validator(text, options) {
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18 if (!window.JSHINT) {
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19 if (window.console) {
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20 window.console.error("Error: window.JSHINT not defined, CodeMirror JavaScript linting cannot run.");
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21 }
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22 return [];
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23 }
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24 if (!options.indent) // JSHint error.character actually is a column index, this fixes underlining on lines using tabs for indentation
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25 options.indent = 1; // JSHint default value is 4
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26 JSHINT(text, options, options.globals);
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27 var errors = JSHINT.data().errors, result = [];
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28 if (errors) parseErrors(errors, result);
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29 return result;
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30 }
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31
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32 CodeMirror.registerHelper("lint", "javascript", validator);
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33
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34 function parseErrors(errors, output) {
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35 for ( var i = 0; i < errors.length; i++) {
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36 var error = errors[i];
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37 if (error) {
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38 if (error.line <= 0) {
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39 if (window.console) {
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40 window.console.warn("Cannot display JSHint error (invalid line " + error.line + ")", error);
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41 }
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42 continue;
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43 }
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44
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45 var start = error.character - 1, end = start + 1;
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46 if (error.evidence) {
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47 var index = error.evidence.substring(start).search(/.\b/);
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48 if (index > -1) {
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49 end += index;
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50 }
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51 }
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52
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53 // Convert to format expected by validation service
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54 var hint = {
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55 message: error.reason,
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56 severity: error.code ? (error.code.startsWith('W') ? "warning" : "error") : "error",
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57 from: CodeMirror.Pos(error.line - 1, start),
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58 to: CodeMirror.Pos(error.line - 1, end)
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59 };
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60
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61 output.push(hint);
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62 }
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63 }
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64 }
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65 });
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