mirror of
https://github.com/mozilla/gecko-dev.git
synced 2024-11-08 04:27:37 +00:00
129 lines
4.0 KiB
Plaintext
129 lines
4.0 KiB
Plaintext
/* -*- Mode: C; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 2 -*-
|
|
*
|
|
* The contents of this file are subject to the Netscape Public
|
|
* License Version 1.1 (the "License"); you may not use this file
|
|
* except in compliance with the License. You may obtain a copy of
|
|
* the License at http://www.mozilla.org/NPL/
|
|
*
|
|
* Software distributed under the License is distributed on an "AS
|
|
* IS" basis, WITHOUT WARRANTY OF ANY KIND, either express or
|
|
* implied. See the License for the specific language governing
|
|
* rights and limitations under the License.
|
|
*
|
|
* The Original Code is mozilla.org code.
|
|
*
|
|
* The Initial Developer of the Original Code is Netscape
|
|
* Communications Corporation. Portions created by Netscape are
|
|
* Copyright (C) 1998 Netscape Communications Corporation. All
|
|
* Rights Reserved.
|
|
*
|
|
* Contributor(s):
|
|
*/
|
|
|
|
%option yylineno
|
|
|
|
%{
|
|
/*
|
|
* includes and local declaration.
|
|
*/
|
|
|
|
#include "Fundamentals.h"
|
|
#include "Primitives.h"
|
|
#include "Value.h"
|
|
#include "GraphBuilder.h"
|
|
#include "cstubs.h"
|
|
#include "Parser.h"
|
|
|
|
#define yywrap() 1
|
|
#define YY_DECL int yylex(void *yylval)
|
|
#define YYLVAL ((YYSTYPE *) yylval)
|
|
#define returnPrimitive(op) YYLVAL->yyPrimitiveOperation = (op); return PRIMITIVE;
|
|
#define returnKind(kind) YYLVAL->yyValueKind = (kind); return KIND;
|
|
|
|
static char *extractLabelName(char *label);
|
|
|
|
%}
|
|
|
|
label [[:alnum:]]+":"
|
|
space [ \r\t]+
|
|
number [0-9]+
|
|
string [[:alnum:]]+
|
|
right_assignment "->"
|
|
left_assignment ":="
|
|
comma ","
|
|
parenthesis "("|")"
|
|
at "@"
|
|
|
|
|
|
%x comment ccomment nil
|
|
|
|
%%
|
|
|
|
{right_assignment} {return RIGHT_ASSIGNMENT;}
|
|
{left_assignment} {return LEFT_ASSIGNMENT;}
|
|
{comma} {return yytext[0];}
|
|
{parenthesis} {return yytext[0];}
|
|
{at} {return yytext[0];}
|
|
|
|
"_I" {returnKind(vkInt);}
|
|
|
|
"Arg" {returnPrimitive(poArg_I)}
|
|
"Result" {returnPrimitive(poResult_I)}
|
|
"Const" {returnPrimitive(poConst_I)}
|
|
"Mul" {returnPrimitive(poMul_I)}
|
|
"Add" {returnPrimitive(poAdd_I)}
|
|
"Sub" {returnPrimitive(poSub_I)}
|
|
"And" {returnPrimitive(poAnd_I)}
|
|
"Or" {returnPrimitive(poOr_I)}
|
|
"Xor" {returnPrimitive(poXor_I)}
|
|
"Cmp" {returnPrimitive(poCmp_I)}
|
|
"IfLt" {returnPrimitive(poIfLt)}
|
|
"IfEq" {returnPrimitive(poIfEq)}
|
|
"IfLe" {returnPrimitive(poIfLe)}
|
|
"IfGt" {returnPrimitive(poIfGt)}
|
|
"IfNe" {returnPrimitive(poIfNe)}
|
|
"IfGe" {returnPrimitive(poIfGe)}
|
|
"St" {returnPrimitive(poSt_I)}
|
|
"Branch" {returnPrimitive((PrimitiveOperation)nPrimitiveOperations)}
|
|
"Phi" {return PHI;}
|
|
|
|
{string}: {YYLVAL->yyString = extractLabelName(yytext); return LABEL;}
|
|
|
|
{number} {sscanf(yytext, "%d", &YYLVAL->yyValue.i); return NUMBER;}
|
|
#{number} {sscanf(yytext + 1, "%d", &YYLVAL->yyValue.i); return NUMBER;}
|
|
{string} {YYLVAL->yyString = strdup(yytext); return STRING;}
|
|
|
|
|
|
{space}+
|
|
"/*" BEGIN(comment);
|
|
"//" BEGIN(ccomment);
|
|
\n return '\n';
|
|
.
|
|
|
|
<comment>[^*]*
|
|
<comment>"*"+[^*/]*
|
|
<comment>"*"+"/" BEGIN(INITIAL);
|
|
|
|
<ccomment>.
|
|
<ccomment>\n {
|
|
BEGIN(INITIAL); return '\n';
|
|
}
|
|
|
|
<nil>. { /* to quiet the compiler. */
|
|
return yytext[0];
|
|
yyunput(0, NULL);
|
|
yy_flex_realloc(0, 0);
|
|
REJECT;
|
|
}
|
|
%%
|
|
|
|
static char *
|
|
extractLabelName(char *label)
|
|
{
|
|
uint32 size = strlen(label);
|
|
char *ret = (char *) malloc(size);
|
|
strncpy(ret, label, size - 1);
|
|
ret[size - 1] = '\0';
|
|
return ret;
|
|
}
|