+/* 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>
va_start(arglist, format);
vsprintf(buf, format, arglist);
va_end(arglist);
- fprintf(stderr, "%s:%d:%d: error: %s\n", current_filename, current_line, current_column, buf);
+ fprintf(stderr, "%s:%d:%d: error: %s\n", current_filename_short, current_line, current_column, buf);
fflush(stderr);
exit(1);
}
//BEGIN(INITIAL); keep context
}
+static void handleString(char*s, int len)
+{
+ if(s[0]=='"') {
+ if(s[len-1]!='"') syntaxerror("String doesn't end with '\"'");
+ s++;len-=2;
+ }
+ else if(s[0]=='\'') {
+ if(s[len-1]!='\'') syntaxerror("String doesn't end with '\"'");
+ s++;len-=2;
+ }
+ else syntaxerror("String incorrectly terminated");
+ s[len] = 0;
+ avm2_lval.string = s;
+}
+
+
char start_of_expression;
static inline int m(int type)
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");
}
}
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;
STRING ["](\\[\x00-\xff]|[^\\"\n])*["]|['](\\[\x00-\xff]|[^\\'\n])*[']
S [ \n\r\t]
-MULTILINE_COMMENT [/][*]([*][^/]|[^*]|[\x00-\x31])*[*]+[/]
+MULTILINE_COMMENT [/][*]+([*][^/]|[^/*]|[\x00-\x1f])*[*]+[/]
SINGLELINE_COMMENT \/\/[^\n]*\n
REGEXP [/]([^/\n]|\\[/])*[/][a-zA-Z]*
%%
^include{S}+{STRING}{S}*/\n {c();handleInclude(yytext, yyleng, 1);}
^include{S}+[^" \t\r\n][\x20-\xff]*{S}*/\n {c();handleInclude(yytext, yyleng, 0);}
-{STRING} {c(); BEGIN(INITIAL);return m(T_STRING);}
+{STRING} {c(); BEGIN(INITIAL);handleString(yytext, yyleng);return T_STRING;}
<BEGINNING,REGEXPOK>{
{REGEXP} {c(); BEGIN(INITIAL);return m(T_REGEXP);}
{NUMBER} {c(); BEGIN(INITIAL);return handlenumber();}
+3rr0r {/* for debugging: generates a tokenizer-level error */
+ syntaxerror("3rr0r");}
+
+[!][=] {BEGIN(REGEXPOK);return m(T_NE);}
+[=][=][=] {BEGIN(REGEXPOK);return m(T_EQEQEQ);}
+[=][=] {BEGIN(REGEXPOK);return m(T_EQEQ);}
[>][=] {return m(T_GE);}
[<][=] {return m(T_LE);}
+[+][=] {return m(T_PLUSBY);}
+[-][=] {return m(T_MINUSBY);}
[-][-] {BEGIN(INITIAL);return m(T_MINUSMINUS);}
[+][+] {BEGIN(INITIAL);return m(T_PLUSPLUS);}
-== {BEGIN(REGEXPOK);return m(T_EQEQ);}
\.\. {return m(T_DOTDOT);}
\. {return m('.');}
:: {return m(T_COLONCOLON);}
static {return m(KW_STATIC);}
import {return m(KW_IMPORT);}
Number {return m(KW_NUMBER);}
+while {return m(KW_WHILE);}
class {return m(KW_CLASS);}
const {return m(KW_CONST);}
final {return m(KW_FINAL);}
-False {return m(KW_FALSE);}
-True {return m(KW_TRUE);}
+false {return m(KW_FALSE);}
+break {return m(KW_BREAK);}
+true {return m(KW_TRUE);}
uint {return m(KW_UINT);}
null {return m(KW_NULL);}
+else {return m(KW_ELSE);}
use {return m(KW_USE);}
int {return m(KW_INT);}
new {return m(KW_NEW);}
set {return m(KW_SET);}
var {return m(KW_VAR);}
is {return m(KW_IS) ;}
+if {return m(KW_IF) ;}
as {return m(KW_AS);}
{NAME} {c();BEGIN(INITIAL);return m(T_IDENTIFIER);}
else if(nr==KW_TRUE) return "True";
else if(nr==KW_UINT) return "uint";
else if(nr==KW_NULL) return "null";
+ else if(nr==KW_ELSE) return "else";
else if(nr==KW_USE) return "use";
else if(nr==KW_INT) return "int";
else if(nr==KW_NEW) return "new";