added GPL headers

[swftools.git] / lib / as3 / tokenizer.lex

diff --git a/lib/as3/tokenizer.lex b/lib/as3/tokenizer.lex
index 7a17622..dcae2f2 100644 (file)
--- a/lib/as3/tokenizer.lex
+++ b/lib/as3/tokenizer.lex
@@ -1,4 +1,28 @@
+/* tokenizer.lex
+
+   Routines for compiling Flash2 AVM2 ABC Actionscript
+
+   Extension module for the rfxswf library.
+   Part of the swftools package.
+
+   Copyright (c) 2008 Matthias Kramm <kramm@quiss.org>
+ 
+   This program is free software; you can redistribute it and/or modify
+   it under the terms of the GNU General Public License as published by
+   the Free Software Foundation; either version 2 of the License, or
+   (at your option) any later version.
+
+   This program is distributed in the hope that it will be useful,
+   but WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+   GNU General Public License for more details.
+
+   You should have received a copy of the GNU General Public License
+   along with this program; if not, write to the Free Software
+   Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA */
 %{
+
+
 #include <string.h>
 #include <stdlib.h>
 #include <stdio.h>
@@ -121,9 +145,10 @@ static inline int handlenumber()
     char is_float=0;
     for(t=0;t<yyleng;t++) {
         if(yytext[t]=='.') {
+            if(is_float)
+                syntaxerror("Invalid number");
             is_float=1;
-        } 
-        if(!strchr("0123456789", yytext[t])) {
+        } else if(!strchr("-0123456789", yytext[t])) {
             syntaxerror("Invalid number");
         }
     }
@@ -131,31 +156,39 @@ static inline int handlenumber()
         avm2_lval.number_float = atof(s);
         return T_FLOAT;
     } 
-    int l=0;
-    if(yytext[0]=='-')
-        l++;
+    char l = (yytext[0]=='-');
 
-    char*max = l?"2147483648":"4294967296";
-    if(yyleng>10)
+    char*max = l?"1073741824":"2147483647";
+    if(yyleng-l>10)
         syntaxerror("integer overflow");
-    if(yyleng==10) {
+    if(yyleng-l==10) {
         int t;
         for(t=0;t<yyleng-l;t++) {
             if(yytext[l+t]>max[t])
-                syntaxerror("integer overflow");
+                syntaxerror("integer overflow %s > %s", s+l,max);
             else if(yytext[l+t]<max[t])
                 break;
         }
     }
     if(yytext[0]=='-') {
-        avm2_lval.number_int = atoi(s);
-        return T_INT;
+        int v = atoi(s);
+        avm2_lval.number_int = v;
+        if(v>-128)
+            return T_BYTE;
+        else if(v>=-32768)
+            return T_SHORT;
+        else
+            return T_INT;
     } else {
-        unsigned int v = atoi(s);
+        unsigned int v = 0;
+        for(t=0;t<yyleng;t++) {
+            v*=10;
+            v+=yytext[t]-'0';
+        }
         avm2_lval.number_uint = v;
-        if(v<256)
+        if(v<128)
             return T_BYTE;
-        else if(v<0x80000000)
+        else if(v<32768)
             return T_SHORT;
         else
             return T_UINT;