php-src/Zend/zend_ini_scanner.l
2000-11-03 02:45:55 +00:00

284 lines
5.3 KiB
Plaintext

%{
/*
+----------------------------------------------------------------------+
| Zend Engine |
+----------------------------------------------------------------------+
| Copyright (c) 1998-2000 Zend Technologies Ltd. (http://www.zend.com) |
+----------------------------------------------------------------------+
| This source file is subject to version 0.92 of the Zend license, |
| that is bundled with this package in the file LICENSE, and is |
| available at through the world-wide-web at |
| http://www.zend.com/license/0_92.txt. |
| If you did not receive a copy of the Zend license and are unable to |
| obtain it through the world-wide-web, please send a note to |
| license@zend.com so we can mail you a copy immediately. |
+----------------------------------------------------------------------+
| Author: Zeev Suraski <zeev@zend.com> |
+----------------------------------------------------------------------+
*/
#include "zend.h"
#include "zend_globals.h"
#include "zend_ini_parser.h"
#include "zend_ini_scanner.h"
#ifdef ZTS
# ifdef HAVE_STDIOSTR_H
# include <stdiostr.h>
# endif
# ifdef HAVE_STDIOSTREAM_H
# include <stdiostream.h>
# endif
# ifdef ZEND_WIN32
# include <strstrea.h>
# else
# include <strstream.h>
# endif
#endif
#undef YYSTYPE
#define YYSTYPE zval
#ifdef ZTS
#define YY_DECL int ZendIniFlexLexer::lex_scan(zval *ini_lval)
#else
#define YY_DECL int ini_lex(zval *ini_lval)
#endif
#ifndef ZTS
static char *ini_filename;
void init_ini_scanner()
{
ini_lineno=1;
}
int zend_ini_scanner_get_lineno()
{
return ini_lineno;
}
char *zend_ini_scanner_get_filename()
{
return ini_filename;
}
#else /* ZTS */
int zend_ini_scanner_get_lineno()
{
CLS_FETCH();
return CG(ini_scanner)->lineno();
}
char *zend_ini_scanner_get_filename()
{
CLS_FETCH();
return CG(ini_scanner)->filename;
}
int ini_lex(zval *ini_lval)
{
CLS_FETCH();
return CG(ini_scanner)->lex_scan(ini_lval);
}
ZendIniFlexLexer::~ZendIniFlexLexer()
{
if (yy_start_stack) {
yy_flex_free(yy_start_stack);
}
}
int yyFlexLexer::yylex()
{
fprintf(stderr, "Error: yyFlexLexer::yylex() called\n");
return -1;
}
#endif
int zend_ini_open_file_for_scanning(zend_file_handle *fh)
{
FILE *fp;
CLS_FETCH();
switch (fh->type) {
case ZEND_HANDLE_FP:
fp = fh->handle.fp;
break;
case ZEND_HANDLE_FILENAME:
fp = zend_fopen(fh->filename, NULL);
fh->type = ZEND_HANDLE_FP;
break;
default:
return FAILURE;
}
#ifdef ZTS
if (!fp) {
return FAILURE;
}
fh->handle.is = new istdiostream(fp);
fh->type = ZEND_HANDLE_STDIOSTREAM;
CG(ini_scanner) = new ZendIniFlexLexer;
CG(ini_scanner)->switch_streams(fh->handle.is, &cout);
CG(ini_scanner)->filename = fh->filename;
#else
init_ini_scanner();
yyin = fp;
yy_switch_to_buffer(yy_create_buffer(yyin, YY_BUF_SIZE));
ini_filename = fh->filename;
#endif
return SUCCESS;
}
void zend_ini_close_file(zend_file_handle *fh)
{
switch (fh->type) {
case ZEND_HANDLE_FP:
fclose(fh->handle.fp);
break;
#ifdef ZTS
case ZEND_HANDLE_STDIOSTREAM: {
CLS_FETCH();
delete CG(ini_scanner);
}
break;
#endif
}
}
%}
%option noyywrap
%option yylineno
%%
<INITIAL>[ ]*("true"|"on"|"yes")[ ]* {
ini_lval->value.str.val = zend_strndup("1",1);
ini_lval->value.str.len = 1;
ini_lval->type = IS_STRING;
return CFG_TRUE;
}
<INITIAL>[ ]*("false"|"off"|"no"|"none")[ ]* {
ini_lval->value.str.val = zend_strndup("",0);
ini_lval->value.str.len = 0;
ini_lval->type = IS_STRING;
return CFG_FALSE;
}
<INITIAL>[[][^[]+[\]]([\n]?|"\r\n"?) {
/* SECTION */
/* eat trailng ] */
while (yyleng>0 && (yytext[yyleng-1]=='\n' || yytext[yyleng-1]=='\r' || yytext[yyleng-1]==']')) {
yyleng--;
yytext[yyleng]=0;
}
/* eat leading [ */
yytext++;
yyleng--;
ini_lval->value.str.val = zend_strndup(yytext,yyleng);
ini_lval->value.str.len = yyleng;
ini_lval->type = IS_STRING;
return SECTION;
}
<INITIAL>["][^\n\r"]*["] {
/* ENCAPSULATED TC_STRING */
/* eat trailing " */
yytext[yyleng-1]=0;
/* eat leading " */
yytext++;
ini_lval->value.str.val = zend_strndup(yytext, yyleng - 2);
ini_lval->value.str.len = yyleng - 2;
ini_lval->type = IS_STRING;
return TC_ENCAPSULATED_STRING;
}
<INITIAL>[&|~()!] {
return yytext[0];
}
<INITIAL>[^=\n\r\t;|&~()!"]+ {
/* STRING */
register int i;
/* eat trailing whitespace */
for (i=yyleng-1; i>=0; i--) {
if (yytext[i]==' ' || yytext[i]=='\t') {
yytext[i]=0;
yyleng--;
} else {
break;
}
}
/* eat leading whitespace */
while (yytext[0]) {
if (yytext[0]==' ' || yytext[0]=='\t') {
yytext++;
yyleng--;
} else {
break;
}
}
if (yyleng!=0) {
ini_lval->value.str.val = zend_strndup(yytext,yyleng);
ini_lval->value.str.len = yyleng;
ini_lval->type = IS_STRING;
return TC_STRING;
} else {
/* whitespace */
}
}
<INITIAL>[=\n] {
return yytext[0];
}
<INITIAL>"\r\n" {
return '\n';
}
<INITIAL>[;][^\r\n]*[\r\n]? {
/* comment */
return '\n';
}
<INITIAL>[ \t] {
/* eat whitespace */
}
<INITIAL>. {
#if DEBUG
php_error(E_NOTICE,"Unexpected character on line %d: '%s' (ASCII %d)\n",yylineno,yytext,yytext[0]);
#endif
}
<<EOF>> {
yy_delete_buffer(YY_CURRENT_BUFFER);
yyterminate();
}