From: Alan Knowles <alan@akbkhome.com>
Date: Wed, 11 Aug 2010 04:28:59 +0000 (+0800)
Subject: JSDOC/TokenReader.js
X-Git-Url: http://git.roojs.org/?p=gnome.introspection-doc-generator;a=commitdiff_plain;h=6461080021b030d20d07eb84b6192873d8f5427c

JSDOC/TokenReader.js
---

diff --git a/JSDOC/TokenReader.js b/JSDOC/TokenReader.js
index 21db9f0..4a46248 100644
--- a/JSDOC/TokenReader.js
+++ b/JSDOC/TokenReader.js
@@ -41,9 +41,6 @@ TokenReader = XObject.define(
          * tr.tokenize(ts)
          * 
          */
-            
-
-
         tokenize : function(/**JSDOC.TextStream*/stream) {
             this.line =1;
             var tokens = [];
@@ -77,6 +74,56 @@ TokenReader = XObject.define(
             return tokens;
         },
 
+        /**
+         * findPuncToken - find the id of a token (previous to current)
+         * need to back check syntax..
+         * 
+         * @arg {Array} tokens the array of tokens.
+         * @arg {String} token data (eg. '(')
+         * @arg {Number} offset where to start reading from
+         * @return {Number} position of token
+         */
+        findPuncToken : function(tokens, data, n) {
+            n = n || tokens.length -1;
+            var stack = 0;
+            while (n > -1) {
+                
+                if (!stack && tokens[n].data == data) {
+                    return n;
+                }
+                
+                if (tokens[n].data  == ')' || tokens[n].data  == '}') {
+                    stack++;
+                    n--;
+                    continue;
+                }
+                if (stack && (tokens[n].data  == '{' || tokens[n].data  == '(')) {
+                    stack--;
+                    n--;
+                    continue;
+                }
+                
+                
+                n--;
+            }
+            return -1;
+        },
+        /**
+         * lastSym - find the last token symbol
+         * need to back check syntax..
+         * 
+         * @arg {Array} tokens the array of tokens.
+         * @arg {Number} offset where to start..
+         * @return {Token} the token
+         */
+        lastSym : function(tokens, n) {
+            for (var i = n-1; i >= 0; i--) {
+                if (!(tokens[i].is("WHIT") || tokens[i].is("COMM"))) return tokens[i];
+            }
+        },
+        
+         
+        
         /**
             @returns {Boolean} Was the token found?
          */
@@ -93,10 +140,23 @@ TokenReader = XObject.define(
             var name;
             if ((name = Lang.keyword(found))) {
                 if (found == 'return' && tokens.lastSym().data == ')') {
-                    throw {
-                        name : "ArgumentError", 
-                        message: "\n" + this.filename + ':' + this.line + " Error - return found after )"
-                    }   
+                    //Seed.print('@' + tokens.length);
+                    var n = this.findPuncToken(tokens, ')');
+                    //Seed.print(')@' + n);
+                    n = this.findPuncToken(tokens, '(', n-1);
+                    //Seed.print('(@' + n);
+                    
+                    var lt = this.lastSym(tokens, n);
+                   Seed.print(JSON.stringify(lt));
+                    if (lt.type != 'KEYW' || ['IF', 'WHILE'].indexOf(lt.name) < -1) {
+                        throw {
+                            name : "ArgumentError", 
+                            message: "\n" + this.filename + ':' + this.line + " Error - return found after )"
+                        }   
+                    }
+                    
+                    
+                    
                 }
                 
                 tokens.push(new Token(found, "KEYW", name, this.line));