1 //<script type="text/javscript">
3 imports['Object.js'].load(Object);
5 JSDOC = imports['JSDOC.js'].JSDOC;
6 console = imports['console.js'].console;
7 Token = imports['JSDOC/Token.js'].Token;
8 Lang = imports['JSDOC/Lang.js'].Lang;
14 TokenStream = Object.define(
18 this.tokens = (tokens || []);
19 // Seed.print(this.tokens.length);
24 cursor : -1, // where are we in the stream.
33 look : function(/**Number*/n, /**Boolean*/considerWhitespace) {
34 if (typeof n == "undefined") n = 0;
36 if (considerWhitespace == true) {
37 if (this.cursor+n < 0 || this.cursor+n > this.tokens.length) return {};
38 return this.tokens[this.cursor+n];
45 if (i < 0) return new Token("", "VOID", "START_OF_STREAM");
46 else if (i > this.tokens.length) return new Token("", "VOID", "END_OF_STREAM");
48 if (i != this.cursor && (this.tokens[i] === undefined || this.tokens[i].is("WHIT"))) {
49 if (n < 0) i--; else i++;
53 if (count == Math.abs(n)) {
54 return this.tokens[i];
60 return new Token("", "VOID", "STREAM_ERROR"); // because null isn't an object and caller always expects an object
64 lookFor : function (data)
67 var i = this.cursor < 0 ? 0 : this.cursor ;
70 if (i >= this.tokens.length) return -1;
71 if (this.tokens[i].data == data) {
77 // should not get here!
84 * look ahead (or back) x number of tokens (which are not comment or whitespace)
87 lookTok : function(/**Number*/n) {
88 if (typeof n == "undefined") n = 1;
95 if (i < 0) return false;
96 else if (i > this.tokens.length) return false;
98 if (i != this.cursor && (this.tokens[i] === undefined || this.tokens[i].is("WHIT") || this.tokens[i].is("COMM"))) {
99 if (n < 0) i--; else i++;
103 if (count == Math.abs(n)) {
104 return this.tokens[i];
110 return false; // because null isn't an object and caller always expects an object;
115 @type JSDOC.Token|JSDOC.Token[]| null!
117 next : function(/**Number*/howMany) {
118 if (typeof howMany == "undefined") howMany = 1;
119 if (howMany < 1) return null;
122 for (var i = 1; i <= howMany; i++) {
123 if (this.cursor+i >= this.tokens.length) {
126 got.push(this.tokens[this.cursor+i]);
128 this.cursor += howMany;
135 // what about comments after 'function'...
138 nextNonSpace : function ()
146 if (tok.is('WHIT') || tok.is('COMM')) {
155 balance : function(/**String*/start, /**String*/stop) {
157 start = typeof(Lang.matching(start)) == 'undefined' : Lang.punc(start);
159 if (!stop) stop = Lang.matching(start);
164 //Seed.print("STOP:" + stop);
165 while ((token = this.look())) {
166 if (token.is(start)) {
175 if (token.is(stop)) {
177 if (depth == 0) return got;
179 if (!this.next()) break;
183 getMatchingToken : function(/**String*/start, /**String*/stop) {
185 var cursor = this.cursor;
188 start = Lang.matching(stop);
191 if (!stop) stop = Lang.matching(start);
193 while ((token = this.tokens[cursor])) {
194 if (token.is(start)) {
198 if (token.is(stop) && cursor) {
200 if (depth == 0) return this.tokens[cursor];
206 insertAhead : function(/**JSDOC.Token*/token) {
207 this.tokens.splice(this.cursor+1, 0, token);
210 remaining : function() {
213 var tok = this.look(1,true);
214 if (!tok || !tok.is || tok.is('VOID')) {
217 ret.push(this.next(1));
222 arrayToString : function(ar) {
223 console.log(typeof(ar));
225 Roo.each(ar, function(e) {