src/selector/escapeSelector.js

   1 define( [
   2         "../core"
   3 ], function( jQuery ) {
   4
   5 "use strict";
   6
   7 // CSS string/identifier serialization
   8 // https://drafts.csswg.org/cssom/#common-serializing-idioms
   9 var rcssescape = /([\0-\x1f\x7f]|^-?\d)|^-$|[^\x80-\uFFFF\w-]/g;
  10
  11 function fcssescape( ch, asCodePoint ) {
  12         if ( asCodePoint ) {
  13
  14                 // U+0000 NULL becomes U+FFFD REPLACEMENT CHARACTER
  15                 if ( ch === "\0" ) {
  16                         return "\uFFFD";
  17                 }
  18
  19                 // Control characters and (dependent upon position) numbers get escaped as code points
  20                 return ch.slice( 0, -1 ) + "\\" + ch.charCodeAt( ch.length - 1 ).toString( 16 ) + " ";
  21         }
  22
  23         // Other potentially-special ASCII characters get backslash-escaped
  24         return "\\" + ch;
  25 }
  26
  27 jQuery.escapeSelector = function( sel ) {
  28         return ( sel + "" ).replace( rcssescape, fcssescape );
  29 };
  30
  31 } );