mirror of
https://github.com/php/php-src.git
synced 2025-01-06 02:43:34 +08:00
316 lines
8.2 KiB
C
316 lines
8.2 KiB
C
/*
|
|
+----------------------------------------------------------------------+
|
|
| PHP Version 7 |
|
|
+----------------------------------------------------------------------+
|
|
| Copyright (c) 1997-2017 The PHP Group |
|
|
+----------------------------------------------------------------------+
|
|
| This source file is subject to version 3.01 of the PHP license, |
|
|
| that is bundled with this package in the file LICENSE, and is |
|
|
| available through the world-wide-web at the following url: |
|
|
| http://www.php.net/license/3_01.txt |
|
|
| If you did not receive a copy of the PHP license and are unable to |
|
|
| obtain it through the world-wide-web, please send a note to |
|
|
| license@php.net so we can mail you a copy immediately. |
|
|
+----------------------------------------------------------------------+
|
|
| Author: Andrei Zmievski <andrei@php.net> |
|
|
+----------------------------------------------------------------------+
|
|
*/
|
|
|
|
/* $Id$ */
|
|
|
|
#ifdef HAVE_CONFIG_H
|
|
#include "config.h"
|
|
#endif
|
|
|
|
#include "php.h"
|
|
#include "php_ini.h"
|
|
#include "ext/standard/info.h"
|
|
#include "php_tokenizer.h"
|
|
|
|
#include "zend.h"
|
|
#include "zend_exceptions.h"
|
|
#include "zend_language_scanner.h"
|
|
#include "zend_language_scanner_defs.h"
|
|
#include <zend_language_parser.h>
|
|
|
|
#define zendtext LANG_SCNG(yy_text)
|
|
#define zendleng LANG_SCNG(yy_leng)
|
|
#define zendcursor LANG_SCNG(yy_cursor)
|
|
#define zendlimit LANG_SCNG(yy_limit)
|
|
|
|
#define TOKEN_PARSE 1
|
|
|
|
void tokenizer_token_get_all_register_constants(INIT_FUNC_ARGS) {
|
|
REGISTER_LONG_CONSTANT("TOKEN_PARSE", TOKEN_PARSE, CONST_CS|CONST_PERSISTENT);
|
|
}
|
|
|
|
/* {{{ arginfo */
|
|
ZEND_BEGIN_ARG_INFO_EX(arginfo_token_get_all, 0, 0, 1)
|
|
ZEND_ARG_INFO(0, source)
|
|
ZEND_ARG_INFO(0, flags)
|
|
ZEND_END_ARG_INFO()
|
|
|
|
ZEND_BEGIN_ARG_INFO_EX(arginfo_token_name, 0, 0, 1)
|
|
ZEND_ARG_INFO(0, token)
|
|
ZEND_END_ARG_INFO()
|
|
/* }}} */
|
|
|
|
/* {{{ tokenizer_functions[]
|
|
*
|
|
* Every user visible function must have an entry in tokenizer_functions[].
|
|
*/
|
|
const zend_function_entry tokenizer_functions[] = {
|
|
PHP_FE(token_get_all, arginfo_token_get_all)
|
|
PHP_FE(token_name, arginfo_token_name)
|
|
PHP_FE_END
|
|
};
|
|
/* }}} */
|
|
|
|
/* {{{ tokenizer_module_entry
|
|
*/
|
|
zend_module_entry tokenizer_module_entry = {
|
|
STANDARD_MODULE_HEADER,
|
|
"tokenizer",
|
|
tokenizer_functions,
|
|
PHP_MINIT(tokenizer),
|
|
NULL,
|
|
NULL,
|
|
NULL,
|
|
PHP_MINFO(tokenizer),
|
|
PHP_TOKENIZER_VERSION,
|
|
STANDARD_MODULE_PROPERTIES
|
|
};
|
|
/* }}} */
|
|
|
|
#ifdef COMPILE_DL_TOKENIZER
|
|
ZEND_GET_MODULE(tokenizer)
|
|
#endif
|
|
|
|
/* {{{ PHP_MINIT_FUNCTION
|
|
*/
|
|
PHP_MINIT_FUNCTION(tokenizer)
|
|
{
|
|
tokenizer_register_constants(INIT_FUNC_ARGS_PASSTHRU);
|
|
tokenizer_token_get_all_register_constants(INIT_FUNC_ARGS_PASSTHRU);
|
|
return SUCCESS;
|
|
}
|
|
/* }}} */
|
|
|
|
/* {{{ PHP_MINFO_FUNCTION
|
|
*/
|
|
PHP_MINFO_FUNCTION(tokenizer)
|
|
{
|
|
php_info_print_table_start();
|
|
php_info_print_table_row(2, "Tokenizer Support", "enabled");
|
|
php_info_print_table_end();
|
|
}
|
|
/* }}} */
|
|
|
|
static zend_bool tokenize(zval *return_value, zend_string *source)
|
|
{
|
|
zval source_zval;
|
|
zend_lex_state original_lex_state;
|
|
zval token;
|
|
zval keyword;
|
|
int token_type;
|
|
int token_line = 1;
|
|
int need_tokens = -1; /* for __halt_compiler lexing. -1 = disabled */
|
|
|
|
ZVAL_STR_COPY(&source_zval, source);
|
|
zend_save_lexical_state(&original_lex_state);
|
|
|
|
if (zend_prepare_string_for_scanning(&source_zval, "") == FAILURE) {
|
|
zend_restore_lexical_state(&original_lex_state);
|
|
return 0;
|
|
}
|
|
|
|
LANG_SCNG(yy_state) = yycINITIAL;
|
|
array_init(return_value);
|
|
|
|
ZVAL_UNDEF(&token);
|
|
while ((token_type = lex_scan(&token))) {
|
|
if (token_type == T_CLOSE_TAG && zendtext[zendleng - 1] != '>') {
|
|
CG(zend_lineno)++;
|
|
}
|
|
|
|
if (token_type >= 256) {
|
|
array_init(&keyword);
|
|
add_next_index_long(&keyword, token_type);
|
|
if (token_type == T_END_HEREDOC) {
|
|
if (CG(increment_lineno)) {
|
|
token_line = ++CG(zend_lineno);
|
|
CG(increment_lineno) = 0;
|
|
}
|
|
}
|
|
add_next_index_stringl(&keyword, (char *)zendtext, zendleng);
|
|
add_next_index_long(&keyword, token_line);
|
|
add_next_index_zval(return_value, &keyword);
|
|
} else {
|
|
add_next_index_stringl(return_value, (char *)zendtext, zendleng);
|
|
}
|
|
|
|
if (Z_TYPE(token) != IS_UNDEF) {
|
|
zval_dtor(&token);
|
|
ZVAL_UNDEF(&token);
|
|
}
|
|
|
|
/* after T_HALT_COMPILER collect the next three non-dropped tokens */
|
|
if (need_tokens != -1) {
|
|
if (token_type != T_WHITESPACE && token_type != T_OPEN_TAG
|
|
&& token_type != T_COMMENT && token_type != T_DOC_COMMENT
|
|
&& --need_tokens == 0
|
|
) {
|
|
/* fetch the rest into a T_INLINE_HTML */
|
|
if (zendcursor != zendlimit) {
|
|
array_init(&keyword);
|
|
add_next_index_long(&keyword, T_INLINE_HTML);
|
|
add_next_index_stringl(&keyword, (char *)zendcursor, zendlimit - zendcursor);
|
|
add_next_index_long(&keyword, token_line);
|
|
add_next_index_zval(return_value, &keyword);
|
|
}
|
|
break;
|
|
}
|
|
} else if (token_type == T_HALT_COMPILER) {
|
|
need_tokens = 3;
|
|
}
|
|
|
|
token_line = CG(zend_lineno);
|
|
}
|
|
|
|
zval_dtor(&source_zval);
|
|
zend_restore_lexical_state(&original_lex_state);
|
|
|
|
return 1;
|
|
}
|
|
|
|
void on_event(zend_php_scanner_event event, int token, int line, void *context)
|
|
{
|
|
zval *token_stream = (zval *) context;
|
|
zval keyword;
|
|
HashTable *tokens_ht;
|
|
zval *token_zv;
|
|
|
|
switch (event) {
|
|
case ON_TOKEN:
|
|
if (token == END) break;
|
|
if (token >= 256) {
|
|
array_init(&keyword);
|
|
add_next_index_long(&keyword, token);
|
|
add_next_index_stringl(&keyword, (char *)LANG_SCNG(yy_text), LANG_SCNG(yy_leng));
|
|
add_next_index_long(&keyword, line);
|
|
add_next_index_zval(token_stream, &keyword);
|
|
} else {
|
|
add_next_index_stringl(token_stream, (char *)LANG_SCNG(yy_text), LANG_SCNG(yy_leng));
|
|
}
|
|
break;
|
|
case ON_FEEDBACK:
|
|
tokens_ht = Z_ARRVAL_P(token_stream);
|
|
token_zv = zend_hash_index_find(tokens_ht, zend_hash_num_elements(tokens_ht) - 1);
|
|
if (token_zv && Z_TYPE_P(token_zv) == IS_ARRAY) {
|
|
ZVAL_LONG(zend_hash_index_find(Z_ARRVAL_P(token_zv), 0), token);
|
|
}
|
|
break;
|
|
case ON_STOP:
|
|
if (LANG_SCNG(yy_cursor) != LANG_SCNG(yy_limit)) {
|
|
array_init(&keyword);
|
|
add_next_index_long(&keyword, T_INLINE_HTML);
|
|
add_next_index_stringl(&keyword,
|
|
(char *)LANG_SCNG(yy_cursor), LANG_SCNG(yy_limit) - LANG_SCNG(yy_cursor));
|
|
add_next_index_long(&keyword, CG(zend_lineno));
|
|
add_next_index_zval(token_stream, &keyword);
|
|
}
|
|
break;
|
|
}
|
|
}
|
|
|
|
static zend_bool tokenize_parse(zval *return_value, zend_string *source)
|
|
{
|
|
zval source_zval;
|
|
zend_lex_state original_lex_state;
|
|
zend_bool original_in_compilation;
|
|
zend_bool success;
|
|
|
|
ZVAL_STR_COPY(&source_zval, source);
|
|
|
|
original_in_compilation = CG(in_compilation);
|
|
CG(in_compilation) = 1;
|
|
zend_save_lexical_state(&original_lex_state);
|
|
|
|
if ((success = (zend_prepare_string_for_scanning(&source_zval, "") == SUCCESS))) {
|
|
zval token_stream;
|
|
array_init(&token_stream);
|
|
|
|
CG(ast) = NULL;
|
|
CG(ast_arena) = zend_arena_create(1024 * 32);
|
|
LANG_SCNG(yy_state) = yycINITIAL;
|
|
LANG_SCNG(on_event) = on_event;
|
|
LANG_SCNG(on_event_context) = &token_stream;
|
|
|
|
if((success = (zendparse() == SUCCESS))) {
|
|
ZVAL_COPY_VALUE(return_value, &token_stream);
|
|
} else {
|
|
zval_ptr_dtor(&token_stream);
|
|
}
|
|
|
|
zend_ast_destroy(CG(ast));
|
|
zend_arena_destroy(CG(ast_arena));
|
|
}
|
|
|
|
/* restore compiler and scanner global states */
|
|
zend_restore_lexical_state(&original_lex_state);
|
|
CG(in_compilation) = original_in_compilation;
|
|
|
|
zval_dtor(&source_zval);
|
|
|
|
return success;
|
|
}
|
|
|
|
/* }}} */
|
|
|
|
/* {{{ proto array token_get_all(string source [, int flags])
|
|
*/
|
|
PHP_FUNCTION(token_get_all)
|
|
{
|
|
zend_string *source;
|
|
zend_long flags = 0;
|
|
zend_bool success;
|
|
|
|
if (zend_parse_parameters(ZEND_NUM_ARGS(), "S|l", &source, &flags) == FAILURE) {
|
|
return;
|
|
}
|
|
|
|
if (flags & TOKEN_PARSE) {
|
|
success = tokenize_parse(return_value, source);
|
|
} else {
|
|
success = tokenize(return_value, source);
|
|
/* Normal token_get_all() should not throw. */
|
|
zend_clear_exception();
|
|
}
|
|
|
|
if (!success) RETURN_FALSE;
|
|
}
|
|
/* }}} */
|
|
|
|
/* {{{ proto string token_name(int type)
|
|
*/
|
|
PHP_FUNCTION(token_name)
|
|
{
|
|
zend_long type;
|
|
|
|
if (zend_parse_parameters(ZEND_NUM_ARGS(), "l", &type) == FAILURE) {
|
|
return;
|
|
}
|
|
|
|
RETVAL_STRING(get_token_type_name(type));
|
|
}
|
|
/* }}} */
|
|
|
|
/*
|
|
* Local variables:
|
|
* tab-width: 4
|
|
* c-basic-offset: 4
|
|
* End:
|
|
* vim600: noet sw=4 ts=4 fdm=marker
|
|
* vim<600: noet sw=4 ts=4
|
|
*/
|