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<h1 class="page-title">Source: checks/duplicates.js</h1>
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<pre class="prettyprint source linenums"><code>'use strict'
var ignoreRe = /^{|[,}]|(:after|:active|:before|@import|@require|@extend|@media|:hover|@font-face|src)|,$/
var lastFile = ''
/**
* @description check that selector properties are sorted alphabetically
* @param {string} [line] curr line being linted
* @returns {boolean} true if dupe found, false if not
*/
var duplicates = function( line ) {
var arr = this.splitAndStrip( new RegExp( /[\s\t]/ ), line )
var dupe = false
var dupeIndex
var origFile
// if root check not global, obliterate cache on each new file
if ( !this.config.globalDupe &&
lastFile !== this.cache.file ) {
this.cache.sCache = {}
lastFile = this.cache.file
}
// if cache for curr context doesn't exist yet (or was obliterated), make one
if ( typeof this.cache.sCache[ this.state.context ] === 'undefined' ) {
this.cache.sCache[ this.state.context ] = []
}
// if context changes, reset arrays except root
// basically, root can persist across files potentially
// caches above root only persist as long as they are within their context
if ( this.state.context !== this.state.prevContext ) {
Object.keys( this.cache.sCache ).forEach( function( val ) {
// string cause key
if ( val === '0' ) { return }
this.cache.sCache[val] = []
}.bind( this ) )
}
// if not in a list
// and not ignored syntax
// and property exists in the array already
// then dupe
if ( line.indexOf( ',' ) === -1 &&
this.cache.prevLine.indexOf( ',' ) === -1 &&
!ignoreRe.test( line ) ) {
// -1 if no dupe found
dupeIndex = this.cache.sCache[this.state.context].indexOf( arr[0] )
// if match found at right context, is dupe
if ( dupeIndex !== -1 ) {
dupe = true
}
// push selector (and file name) to cache
this.cache.sCache[this.state.context].push( arr[0], this.cache.file )
}
if ( dupe === true ) {
// location of original selector use if global dupe on
origFile = this.cache.sCache[this.state.context][dupeIndex + 1]
// this.msg( 'duplicate property or selector, consider merging' )
if ( !this.config.globalDupe ) {
this.msg(
'duplicate property or selector, consider merging'
)
}
else {
this.msg(
'duplicate property or selector, consider merging\nsee file: ' + origFile + ' for the original selector'
)
}
}
return dupe
}
module.exports = duplicates
</code></pre>
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