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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, options.globals);
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;
}
}
}
function isBogus(error) {
var description = error.description;
for ( var i = 0; i < bogus.length; i++) {
if (description.indexOf(bogus[i]) !== -1) {
return true;
}
}
return false;
}
function parseErrors(errors, output) {
for ( var i = 0; i < errors.length; i++) {
var error = errors[i];
if (error) {
var linetabpositions, index;
linetabpositions = [];
// This next block is to fix a problem in jshint. Jshint
// replaces
// all tabs with spaces then performs some checks. The error
// positions (character/space) are then reported incorrectly,
// not taking the replacement step into account. Here we look
// at the evidence line and try to adjust the character position
// to the correct value.
if (error.evidence) {
// Tab positions are computed once per line and cached
var tabpositions = linetabpositions[error.line];
if (!tabpositions) {
var evidence = error.evidence;
tabpositions = [];
// ugggh phantomjs does not like this
// forEachChar(evidence, function(item, index) {
Array.prototype.forEach.call(evidence, function(item,
index) {
if (item === '\t') {
// First col is 1 (not 0) to match error
// positions
tabpositions.push(index + 1);
}
});
linetabpositions[error.line] = tabpositions;
}
if (tabpositions.length > 0) {
var pos = error.character;
tabpositions.forEach(function(tabposition) {
if (pos > tabposition) pos -= 1;
});
error.character = pos;
}
}
var start = error.character - 1, end = start + 1;
if (error.evidence) {
index = error.evidence.substring(start).search(/.\b/);
if (index > -1) {
end += index;
}
}
// Convert to format expected by validation service
error.description = error.reason;// + "(jshint)";
error.start = error.character;
error.end = end;
error = cleanup(error);
if (error)
output.push({message: error.description,
severity: error.severity,
from: CodeMirror.Pos(error.line - 1, start),
to: CodeMirror.Pos(error.line - 1, end)});
}
}
}
});
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