JQuery_2.1.0_日记 5.4 Sizzle选择器(二)

whitespace = "[\\x20\\t\\r\\n\\f]";

characterEncoding = "(?:\\\\.|[\\w-]|[^\\x00-\\xa0])+"

identifier = characterEncoding.replace( "w" , "w#" )

attributes = "\\[" + whitespace + "*(" + characterEncoding + ")" + whitespace +
               "*(?:([*^$|!~]?=)" + whitespace + "*(?:([‘\"])((?:\\\\.|[^\\\\])*?)\\3|(" + identifier + ")|)|)" + whitespace + "*\\]"

pseudos = ":(" + characterEncoding + ")(?:\\((([‘\"])((?:\\\\.|[^\\\\])*?)\\3|((?:\\\\.|[^\\\\()[\\]]|" + attributes.replace( 3, 8 ) + ")*)|.*)\\)|)"

rcombinators = new RegExp( "^" + whitespace + "*([>+~]|" + whitespace + ")" + whitespace + "*" )

rattributeQuotes = new RegExp( "=" + whitespace + "*([^\\]‘\"]*?)" + whitespace + "*\\]" , "g" )