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%{
/*
* Copyright (c) 2002, 2004 Tama Communications Corporation
*
* This file is part of GNU GLOBAL.
*
* GNU GLOBAL 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, or (at your option)
* any later version.
*
* GNU GLOBAL 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., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
*/
/*
* scanner for php source code.
*/
#ifdef HAVE_CONFIG_H
#include <config.h>
#endif
#include <stdio.h>
#ifdef STDC_HEADERS
#include <stdlib.h>
#endif
#ifdef HAVE_STRING_H
#include <string.h>
#else
#include <strings.h>
#endif
#include "global.h"
#include "anchor.h"
#include "common.h"
#include "incop.h"
#include "htags.h"
#include "path2url.h"
#include "../gtags-parser/php_res.h"
#define lex_symbol_generation_rule(x) php_ ## x
#include "lexcommon.h"
#ifdef ECHO
#undef ECHO
#endif
#define ECHO echos(LEXTEXT)
#define YY_USER_ACTION DEFAULT_YY_USER_ACTION
%}
/* Definitions */
H 0[Xx][0-9A-Fa-f]+
N [0-9]+
L {N}L?
D1 {N}\.{N}([Ee][+-]?{N})?
D2 \.{N}([Ee][+-]?{N})?
NUMBER -?({L}|{D1}|{D2})
ALPHA [a-zA-Z_\x80-\xff]
ALPHANUM [a-zA-Z_\x80-\xff0-9]
WORD {ALPHA}{ALPHANUM}*
%start PHP C_COMMENT CPP_COMMENT SHELL_COMMENT STRING LITERAL PREPROCESSOR_LINE
%option 8bit noyywrap noyy_top_state stack prefix="php_"
%%
/* Start PHP */
<INITIAL>"<?=" { put_string(LEXTEXT); BEGIN PHP; }
<INITIAL>"<?" { put_string(LEXTEXT); BEGIN PHP; }
<INITIAL>"<?php" { put_string(LEXTEXT); BEGIN PHP; }
<INITIAL>"<%" { put_string(LEXTEXT); BEGIN PHP; }
<INITIAL>"<script[ \t]+language=(\")?php(\")?>" { put_string(LEXTEXT); BEGIN PHP; }
/* Ignore HTML */
<INITIAL>. ECHO;
/* End of PHP */
<PHP>"?>" { put_string(LEXTEXT); BEGIN INITIAL; }
<PHP>"%>" { put_string(LEXTEXT); BEGIN INITIAL; }
<PHP>"</script>" { put_string(LEXTEXT); BEGIN INITIAL; }
/* Comment */
<PHP>"/*" { echos(comment_begin); ECHO; yy_push_state(C_COMMENT); }
<C_COMMENT>"*/" { ECHO; echos(comment_end); yy_pop_state(); }
<C_COMMENT>. { put_char(LEXTEXT[0]); }
<PHP>"#" { echos(comment_begin); ECHO; yy_push_state(SHELL_COMMENT); }
<PHP>"//" { echos(comment_begin); ECHO; yy_push_state(CPP_COMMENT); }
/* String */
<PHP>\" { ECHO; yy_push_state(STRING); }
<STRING>\" { ECHO; yy_pop_state(); }
<STRING>\\. { put_char(LEXTEXT[0]); put_char(LEXTEXT[1]); }
/* Literal */
<PHP>\' { ECHO; yy_push_state(LITERAL); }
<LITERAL>\' { ECHO; yy_pop_state(); }
<LITERAL>\\. { put_char(LEXTEXT[0]); put_char(LEXTEXT[1]); }
<PHP>^[ \t]*include[ \t]*\( {
int c;
ECHO;
/*
* include|('aaa/bbb.h');
* ^
*/
while ((c = input()) && c != '\n' && isspace(c))
echoc(c);
if (c == '\n')
unput(c);
else if (c) {
char path[MAXPATHLEN+1], *p = path;
int sep = 0;
if (c == '"' || c == '\'')
sep = c;
echoc(c);
/* pick up path name */
while ((c = input()) && c != '\n' && c != sep)
*p++ = c;
*p = '\0';
if (c == sep) {
struct data *inc;
const char *basename = locatestring(path, "/", MATCH_LAST);
if (basename)
basename++;
else
basename = path;
inc = get_inc(basename);
if (inc)
put_include_anchor(inc, path);
else
echos(path);
echoc(sep);
} else {
echos(path);
if (c)
unput(c);
}
}
}
<PHP>{NUMBER} ECHO;
<PHP,STRING>\${WORD} |
<PHP,STRING>\$\{{WORD}\} {
struct anchor *a = NULL;
const char *p = LEXTEXT + 1; /* skip '$' */
int brace = 0, i = 0;
/*
* extract name.
*/
if (*p == '{') {
char buf[IDENTLEN];
brace = 1;
for (p++; *p && *p != '}'; p++) {
buf[i++] = *p;
if (i >= sizeof(buf))
die("Too long name '%s'.", LEXTEXT);
}
buf[i] = '\0';
p = buf;
} else {
i = LEXLENG - 1;
}
if (symbol && (a = anchor_get(p, i, 'Y', LINENO)) != NULL) {
echoc('$');
if (brace)
echoc('{');
put_anchor(gettag(a), a->type, LINENO);
if (brace)
echoc('}');
a->done = 1;
} else {
ECHO;
}
}
<PHP>{WORD} {
struct anchor *a = NULL;
if (php_reserved_word(LEXTEXT, LEXLENG))
put_reserved_word(LEXTEXT);
else {
a = anchor_get(LEXTEXT, LEXLENG, 0, LINENO);
if (a) {
put_anchor(gettag(a), a->type, LINENO);
a->done = 1;
} else {
ECHO;
}
}
}
<PHP>[{}] { put_brace(LEXTEXT); }
/* New line */
\n DEFAULT_END_OF_LINE_ACTION
. { put_char(LEXTEXT[0]); }
%%
void
php_parser_init(ip)
FILE *ip;
{
DEFAULT_BEGIN_OF_FILE_ACTION
}
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