sbin/res/app/lib/JSDOC/TokenReader.js
branchjsdoc
changeset 520 fe008e95a716
parent 519 46e21d060650
child 521 df716b99c5bb
child 522 2b1a07f1d797
--- a/sbin/res/app/lib/JSDOC/TokenReader.js	Fri Dec 23 10:59:23 2011 +0100
+++ /dev/null	Thu Jan 01 00:00:00 1970 +0000
@@ -1,332 +0,0 @@
-if (typeof JSDOC == "undefined") JSDOC = {};
-
-/**
-	@class Search a {@link JSDOC.TextStream} for language tokens.
-*/
-JSDOC.TokenReader = function() {
-	this.keepDocs = true;
-	this.keepWhite = false;
-	this.keepComments = false;
-}
-
-/**
-	@type {JSDOC.Token[]}
- */
-JSDOC.TokenReader.prototype.tokenize = function(/**JSDOC.TextStream*/stream) {
-	var tokens = [];
-	/**@ignore*/ tokens.last    = function() { return tokens[tokens.length-1]; }
-	/**@ignore*/ tokens.lastSym = function() {
-		for (var i = tokens.length-1; i >= 0; i--) {
-			if (!(tokens[i].is("WHIT") || tokens[i].is("COMM"))) return tokens[i];
-		}
-	}
-
-	while (!stream.look().eof) {
-		if (this.read_mlcomment(stream, tokens)) continue;
-		if (this.read_slcomment(stream, tokens)) continue;
-		if (this.read_dbquote(stream, tokens))   continue;
-		if (this.read_snquote(stream, tokens))   continue;
-		if (this.read_regx(stream, tokens))      continue;
-		if (this.read_numb(stream, tokens))      continue;
-		if (this.read_punc(stream, tokens))      continue;
-		if (this.read_newline(stream, tokens))   continue;
-		if (this.read_space(stream, tokens))     continue;
-		if (this.read_word(stream, tokens))      continue;
-		
-		// if execution reaches here then an error has happened
-		tokens.push(new JSDOC.Token(stream.next(), "TOKN", "UNKNOWN_TOKEN"));
-	}
-	return tokens;
-}
-
-/**
-	@returns {Boolean} Was the token found?
- */
-JSDOC.TokenReader.prototype.read_word = function(/**JSDOC.TokenStream*/stream, tokens) {
-	var found = "";
-	while (!stream.look().eof && JSDOC.Lang.isWordChar(stream.look())) {
-		found += stream.next();
-	}
-	
-	if (found === "") {
-		return false;
-	}
-	else {
-		var name;
-		if ((name = JSDOC.Lang.keyword(found))) tokens.push(new JSDOC.Token(found, "KEYW", name));
-		else tokens.push(new JSDOC.Token(found, "NAME", "NAME"));
-		return true;
-	}
-}
-
-/**
-	@returns {Boolean} Was the token found?
- */
-JSDOC.TokenReader.prototype.read_punc = function(/**JSDOC.TokenStream*/stream, tokens) {
-	var found = "";
-	var name;
-	while (!stream.look().eof && JSDOC.Lang.punc(found+stream.look())) {
-		found += stream.next();
-	}
-	
-	if (found === "") {
-		return false;
-	}
-	else {
-		tokens.push(new JSDOC.Token(found, "PUNC", JSDOC.Lang.punc(found)));
-		return true;
-	}
-}
-
-/**
-	@returns {Boolean} Was the token found?
- */
-JSDOC.TokenReader.prototype.read_space = function(/**JSDOC.TokenStream*/stream, tokens) {
-	var found = "";
-	
-	while (!stream.look().eof && JSDOC.Lang.isSpace(stream.look())) {
-		found += stream.next();
-	}
-	
-	if (found === "") {
-		return false;
-	}
-	else {
-		if (this.collapseWhite) found = " ";
-		if (this.keepWhite) tokens.push(new JSDOC.Token(found, "WHIT", "SPACE"));
-		return true;
-	}
-}
-
-/**
-	@returns {Boolean} Was the token found?
- */
-JSDOC.TokenReader.prototype.read_newline = function(/**JSDOC.TokenStream*/stream, tokens) {
-	var found = "";
-	
-	while (!stream.look().eof && JSDOC.Lang.isNewline(stream.look())) {
-		found += stream.next();
-	}
-	
-	if (found === "") {
-		return false;
-	}
-	else {
-		if (this.collapseWhite) found = "\n";
-		if (this.keepWhite) tokens.push(new JSDOC.Token(found, "WHIT", "NEWLINE"));
-		return true;
-	}
-}
-
-/**
-	@returns {Boolean} Was the token found?
- */
-JSDOC.TokenReader.prototype.read_mlcomment = function(/**JSDOC.TokenStream*/stream, tokens) {
-	if (stream.look() == "/" && stream.look(1) == "*") {
-		var found = stream.next(2);
-		
-		while (!stream.look().eof && !(stream.look(-1) == "/" && stream.look(-2) == "*")) {
-			found += stream.next();
-		}
-		
-		// to start doclet we allow /** or /*** but not /**/ or /****
-		if (/^\/\*\*([^\/]|\*[^*])/.test(found) && this.keepDocs) tokens.push(new JSDOC.Token(found, "COMM", "JSDOC"));
-		else if (this.keepComments) tokens.push(new JSDOC.Token(found, "COMM", "MULTI_LINE_COMM"));
-		return true;
-	}
-	return false;
-}
-
-/**
-	@returns {Boolean} Was the token found?
- */
-JSDOC.TokenReader.prototype.read_slcomment = function(/**JSDOC.TokenStream*/stream, tokens) {
-	var found;
-	if (
-		(stream.look() == "/" && stream.look(1) == "/" && (found=stream.next(2)))
-		|| 
-		(stream.look() == "<" && stream.look(1) == "!" && stream.look(2) == "-" && stream.look(3) == "-" && (found=stream.next(4)))
-	) {
-		
-		while (!stream.look().eof && !JSDOC.Lang.isNewline(stream.look())) {
-			found += stream.next();
-		}
-		
-		if (this.keepComments) {
-			tokens.push(new JSDOC.Token(found, "COMM", "SINGLE_LINE_COMM"));
-		}
-		return true;
-	}
-	return false;
-}
-
-/**
-	@returns {Boolean} Was the token found?
- */
-JSDOC.TokenReader.prototype.read_dbquote = function(/**JSDOC.TokenStream*/stream, tokens) {
-	if (stream.look() == "\"") {
-		// find terminator
-		var string = stream.next();
-		
-		while (!stream.look().eof) {
-			if (stream.look() == "\\") {
-				if (JSDOC.Lang.isNewline(stream.look(1))) {
-					do {
-						stream.next();
-					} while (!stream.look().eof && JSDOC.Lang.isNewline(stream.look()));
-					string += "\\\n";
-				}
-				else {
-					string += stream.next(2);
-				}
-			}
-			else if (stream.look() == "\"") {
-				string += stream.next();
-				tokens.push(new JSDOC.Token(string, "STRN", "DOUBLE_QUOTE"));
-				return true;
-			}
-			else {
-				string += stream.next();
-			}
-		}
-	}
-	return false; // error! unterminated string
-}
-
-/**
-	@returns {Boolean} Was the token found?
- */
-JSDOC.TokenReader.prototype.read_snquote = function(/**JSDOC.TokenStream*/stream, tokens) {
-	if (stream.look() == "'") {
-		// find terminator
-		var string = stream.next();
-		
-		while (!stream.look().eof) {
-			if (stream.look() == "\\") { // escape sequence
-				string += stream.next(2);
-			}
-			else if (stream.look() == "'") {
-				string += stream.next();
-				tokens.push(new JSDOC.Token(string, "STRN", "SINGLE_QUOTE"));
-				return true;
-			}
-			else {
-				string += stream.next();
-			}
-		}
-	}
-	return false; // error! unterminated string
-}
-
-/**
-	@returns {Boolean} Was the token found?
- */
-JSDOC.TokenReader.prototype.read_numb = function(/**JSDOC.TokenStream*/stream, tokens) {
-	if (stream.look() === "0" && stream.look(1) == "x") {
-		return this.read_hex(stream, tokens);
-	}
-	
-	var found = "";
-	
-	while (!stream.look().eof && JSDOC.Lang.isNumber(found+stream.look())){
-		found += stream.next();
-	}
-	
-	if (found === "") {
-		return false;
-	}
-	else {
-		if (/^0[0-7]/.test(found)) tokens.push(new JSDOC.Token(found, "NUMB", "OCTAL"));
-		else tokens.push(new JSDOC.Token(found, "NUMB", "DECIMAL"));
-		return true;
-	}
-}
-/*t:
-	requires("../lib/JSDOC/TextStream.js");
-	requires("../lib/JSDOC/Token.js");
-	requires("../lib/JSDOC/Lang.js");
-	
-	plan(3, "testing JSDOC.TokenReader.prototype.read_numb");
-	
-	//// setup
-	var src = "function foo(num){while (num+8.0 >= 0x20 && num < 0777){}}";
-	var tr = new JSDOC.TokenReader();
-	var tokens = tr.tokenize(new JSDOC.TextStream(src));
-	
-	var hexToken, octToken, decToken;
-	for (var i = 0; i < tokens.length; i++) {
-		if (tokens[i].name == "HEX_DEC") hexToken = tokens[i];
-		if (tokens[i].name == "OCTAL") octToken = tokens[i];
-		if (tokens[i].name == "DECIMAL") decToken = tokens[i];
-	}
-	////
-	
-	is(decToken.data, "8.0", "decimal number is found in source.");
-	is(hexToken.data, "0x20", "hexdec number is found in source (issue #99).");
-	is(octToken.data, "0777", "octal number is found in source.");
-*/
-
-/**
-	@returns {Boolean} Was the token found?
- */
-JSDOC.TokenReader.prototype.read_hex = function(/**JSDOC.TokenStream*/stream, tokens) {
-	var found = stream.next(2);
-	
-	while (!stream.look().eof) {
-		if (JSDOC.Lang.isHexDec(found) && !JSDOC.Lang.isHexDec(found+stream.look())) { // done
-			tokens.push(new JSDOC.Token(found, "NUMB", "HEX_DEC"));
-			return true;
-		}
-		else {
-			found += stream.next();
-		}
-	}
-	return false;
-}
-
-/**
-	@returns {Boolean} Was the token found?
- */
-JSDOC.TokenReader.prototype.read_regx = function(/**JSDOC.TokenStream*/stream, tokens) {
-	var last;
-	if (
-		stream.look() == "/"
-		&& 
-		(
-			
-			(
-				!(last = tokens.lastSym()) // there is no last, the regex is the first symbol
-				|| 
-				(
-					   !last.is("NUMB")
-					&& !last.is("NAME")
-					&& !last.is("RIGHT_PAREN")
-					&& !last.is("RIGHT_BRACKET")
-				)
-			)
-		)
-	) {
-		var regex = stream.next();
-		
-		while (!stream.look().eof) {
-			if (stream.look() == "\\") { // escape sequence
-				regex += stream.next(2);
-			}
-			else if (stream.look() == "/") {
-				regex += stream.next();
-				
-				while (/[gmi]/.test(stream.look())) {
-					regex += stream.next();
-				}
-				
-				tokens.push(new JSDOC.Token(regex, "REGX", "REGX"));
-				return true;
-			}
-			else {
-				regex += stream.next();
-			}
-		}
-		// error: unterminated regex
-	}
-	return false;
-}