Anonymous

class Foo {	public static function main () {		trace( tokenize("div a[href] input") );			}		static function tokenize(str:String)	{		str += ' x'; // Maybe a dirty hack? It probably saves alot of code		var blocks : Array<Combinator>;				var char : Int;		var prevChar : Int;		var prev : Selector;		var curr : Selector;		var text = '';				var attSelector = false;		var pseudoSelector = false;		var inQuotes = false;		var inCombinator = false;				for(x in 0 ... str.length)		{			prevChar = char;			char = str.charCodeAt(x);						// Handle strings in quotes (for attribute selectors)			if(inQuotes)			{				if(char == 34 && prevChar != 92) // """ && != "\"					inQuotes = false;				else					text += str.charAt(x);			}			else if(inCombinator)			{				trace(str.charAt(x));				switch(char)				{					case 9,10,13,32:        // \t,\n,\r," "						// Ignore multiple whitespace chars						switch(prevChar){							case 9,10,13,32: continue;						}					case 62:        // ">"						blocks.push(ChildOf(curr));					case 43:        // "+"						blocks.push(ImmediatelyPrecededBy(curr));					case 126:       // "~"						blocks.push(PrecededBy(curr));										default: // New word						inCombinator = false;						if(blocks == null)							blocks = [Tag(curr)];						else							blocks.push(DecendantOf(curr));												curr = prev = null;				}			}			if(!inCombinator) switch(char)			{				case 9,10,13,32:        // \t,\n,\r," "					// Ignore multiple whitespace chars					switch(prevChar){						case 9,10,13,32: continue;					}										if(prev == null)						curr = Element(text, None);										inCombinator = true;					text = '';								case 42:        // "*"					if(!attSelector) {						curr = Any(None);						continue;					}								case 91:        // "["					if(prev == null)						prev = Element(text, None);					else						throw 'Parse error';										text = '';					attSelector = true;								case 93:        // "]"					if(curr == null) {						curr = AttExists(text);						switch(prev) {							case Any(s):								curr = Any(curr);							case Element(t, s):								curr = Element(t, curr);							default:								throw 'Parse error';						}					} else trace(curr);										text = null;					attSelector = false;								case 61:        // "="					if(!attSelector || prev == null) throw 'Parse error';					switch(prev) {						case Any(s):							prev = Any(AttEquals(text, null));						case Element(t, s):							prev = Element(t, AttEquals(text, null));						default:							throw 'Parse error';					}					text = '';								case 34:        // """					inQuotes = true;								case 126:       // "~"					if(!attSelector) throw 'Parse error';								case 94:        // "^"					if(!attSelector) throw 'Parse error';								case 36:        // "$"												case 124:       // "|"				case 58:        // ":"				case 40:        // "("				case 41:        // ")"				case 35:        // "#"				default:					text += str.charAt(x);			}		}				return blocks;	}		static function setNextSelector()	{			}}enum Combinator {	Tag(selector:Selector);	/** 	E F		**/		DecendantOf(selector:Selector);	/** 	E > F	**/	ChildOf(selector:Selector);	/** 	E + F	**/	ImmediatelyPrecededBy(selector:Selector);	/** 	E ~ F	**/	PrecededBy(selector:Selector);}enum Selector {	None; // For filling (yet to be defined) selector arguments in "Any" and "Element"	/** 	*	**/	Any(selector:Selector);	/** 	E	**/	Element(type:String, selector:Selector);	/** 	E[foo]	**/	AttExists(name:String);	/** 	E[foo="bar"]	**/	AttEquals(name:String, value:String);	/** 	E[foo~="bar"]	**/	AttHasListed(name:String, value:String);	/** 	E[foo^="bar"]	**/		AttStartsWith(name:String, value:String);	/** 	E[foo$="bar"]	**/	AttEndsWith(name:String, value:String);	/** 	E[foo*="bar"]	**/	AttContains(name:String, value:String);	/** 	E[hreflang|="en"] or E[hreflang|="en-US"]	**/	AttStartsWith_OptionallyFollowedByHyphen(name:String, value:String); // Rename please :-S	/** 	E:root	**/	DocumentRoot;	/** 	E:nth-child(n)	**/	NthChild(n:Int);	/** 	E:nth-last-child(n)	**/	NthLastChild_CountFromLast(n:Int);	/** 	E:nth-of-type(n)	**/	NthOfType(n:Int);	/** 	E:nth-last-of-type(n)	**/	NthOfType_CountFromLast(n:Int);	/** 	E:first-child	**/	FirstChild;	/** 	E:last-child	**/	LastChild;	/** 	E:first-of-type	**/	FirstSiblingOfType;	/** 	E:last-of-type	**/	LastSiblingOfType;	/** 	E:only-child	**/	OnlyChild;	/** 	E:only-of-type	**/	OnlySiblingOfType;	/** 	E:empty	**/	Empty;	/** 	E:link	**/	Link;	/** 	E:visited	**/	isVisitedLink;	/** 	E:active	**/	isActive;	/** 	E:hover	**/	isHovered;	/** 	E:focus	**/	hasFocus;	/** 	E:target	**/	linkTarget;	/** 	E:lang(fr)	**/	Language(name:String);	/** 	E:enabled	**/	Enabled;	/** 	E:disabled	**/	Disabled;	/** 	E:checked	**/	Checked;	/** 	E::first-line	**/	FirstLine;	/** 	E::first-letter	**/	FirstLetter;	/** 	E::selection	**/	Selection;	/** 	E::before	**/	Before;	/** 	E::after	**/	After;	/** 	E.warning	**/	Class(name:String);	/** 	E#myid	**/	ID(name:String);	/** 	E:not(s)	**/	Not(selector:Selector);}