mirror of
https://github.com/php/php-src.git
synced 2024-12-05 07:46:06 +08:00
2887 lines
67 KiB
Plaintext
2887 lines
67 KiB
Plaintext
/*
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+----------------------------------------------------------------------+
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| Zend Engine |
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+----------------------------------------------------------------------+
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| Copyright (c) Zend Technologies Ltd. (http://www.zend.com) |
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+----------------------------------------------------------------------+
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| This source file is subject to version 2.00 of the Zend license, |
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| that is bundled with this package in the file LICENSE, and is |
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| available through the world-wide-web at the following url: |
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| http://www.zend.com/license/2_00.txt. |
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| If you did not receive a copy of the Zend license and are unable to |
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| obtain it through the world-wide-web, please send a note to |
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| license@zend.com so we can mail you a copy immediately. |
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+----------------------------------------------------------------------+
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| Authors: Marcus Boerger <helly@php.net> |
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| Nuno Lopes <nlopess@php.net> |
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| Scott MacVicar <scottmac@php.net> |
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| Flex version authors: |
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| Andi Gutmans <andi@php.net> |
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| Zeev Suraski <zeev@php.net> |
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+----------------------------------------------------------------------+
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*/
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#if 0
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# define YYDEBUG(s, c) printf("state: %d char: %c\n", s, c)
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#else
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# define YYDEBUG(s, c)
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#endif
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#include "zend_language_scanner_defs.h"
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#include <errno.h>
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#include "zend.h"
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#ifdef ZEND_WIN32
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# include <Winuser.h>
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#endif
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#include "zend_alloc.h"
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#include <zend_language_parser.h>
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#include "zend_compile.h"
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#include "zend_language_scanner.h"
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#include "zend_highlight.h"
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#include "zend_constants.h"
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#include "zend_variables.h"
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#include "zend_operators.h"
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#include "zend_API.h"
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#include "zend_strtod.h"
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#include "zend_exceptions.h"
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#include "zend_virtual_cwd.h"
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#include "tsrm_config_common.h"
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#define YYCTYPE unsigned char
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#define YYFILL(n) { if ((YYCURSOR + n) >= (YYLIMIT + ZEND_MMAP_AHEAD)) { return 0; } }
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#define YYCURSOR SCNG(yy_cursor)
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#define YYLIMIT SCNG(yy_limit)
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#define YYMARKER SCNG(yy_marker)
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#define YYGETCONDITION() SCNG(yy_state)
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#define YYSETCONDITION(s) SCNG(yy_state) = s
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#define STATE(name) yyc##name
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/* emulate flex constructs */
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#define BEGIN(state) YYSETCONDITION(STATE(state))
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#define YYSTATE YYGETCONDITION()
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#define yytext ((char*)SCNG(yy_text))
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#define yyleng SCNG(yy_leng)
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#define yyless(x) do { YYCURSOR = (unsigned char*)yytext + x; \
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yyleng = (unsigned int)x; } while(0)
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#define yymore() goto yymore_restart
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/* perform sanity check. If this message is triggered you should
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increase the ZEND_MMAP_AHEAD value in the zend_streams.h file */
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/*!max:re2c */
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#if ZEND_MMAP_AHEAD < YYMAXFILL
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# error ZEND_MMAP_AHEAD should be greater than or equal to YYMAXFILL
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#endif
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#include <stdarg.h>
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#ifdef HAVE_UNISTD_H
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# include <unistd.h>
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#endif
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/* Globals Macros */
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#define SCNG LANG_SCNG
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#ifdef ZTS
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ZEND_API ts_rsrc_id language_scanner_globals_id;
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ZEND_API size_t language_scanner_globals_offset;
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#else
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ZEND_API zend_php_scanner_globals language_scanner_globals;
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#endif
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#define HANDLE_NEWLINES(s, l) \
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do { \
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char *p = (s), *boundary = p+(l); \
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\
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while (p<boundary) { \
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if (*p == '\n' || (*p == '\r' && (*(p+1) != '\n'))) { \
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CG(zend_lineno)++; \
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} \
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p++; \
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} \
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} while (0)
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#define HANDLE_NEWLINE(c) \
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{ \
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if (c == '\n' || c == '\r') { \
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CG(zend_lineno)++; \
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} \
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}
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/* To save initial string length after scanning to first variable */
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#define SET_DOUBLE_QUOTES_SCANNED_LENGTH(len) SCNG(scanned_string_len) = (len)
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#define GET_DOUBLE_QUOTES_SCANNED_LENGTH() SCNG(scanned_string_len)
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#define IS_LABEL_START(c) (((c) >= 'a' && (c) <= 'z') || ((c) >= 'A' && (c) <= 'Z') || (c) == '_' || (c) >= 0x80)
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#define ZEND_IS_OCT(c) ((c)>='0' && (c)<='7')
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#define ZEND_IS_HEX(c) (((c)>='0' && (c)<='9') || ((c)>='a' && (c)<='f') || ((c)>='A' && (c)<='F'))
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BEGIN_EXTERN_C()
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static void strip_underscores(char *str, int *len)
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{
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char *src = str, *dest = str;
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while (*src != '\0') {
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if (*src != '_') {
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*dest = *src;
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dest++;
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} else {
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--(*len);
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}
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src++;
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}
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*dest = '\0';
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}
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static size_t encoding_filter_script_to_internal(unsigned char **to, size_t *to_length, const unsigned char *from, size_t from_length)
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{
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const zend_encoding *internal_encoding = zend_multibyte_get_internal_encoding();
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ZEND_ASSERT(internal_encoding);
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return zend_multibyte_encoding_converter(to, to_length, from, from_length, internal_encoding, LANG_SCNG(script_encoding));
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}
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static size_t encoding_filter_script_to_intermediate(unsigned char **to, size_t *to_length, const unsigned char *from, size_t from_length)
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{
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return zend_multibyte_encoding_converter(to, to_length, from, from_length, zend_multibyte_encoding_utf8, LANG_SCNG(script_encoding));
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}
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static size_t encoding_filter_intermediate_to_script(unsigned char **to, size_t *to_length, const unsigned char *from, size_t from_length)
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{
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return zend_multibyte_encoding_converter(to, to_length, from, from_length,
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LANG_SCNG(script_encoding), zend_multibyte_encoding_utf8);
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}
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static size_t encoding_filter_intermediate_to_internal(unsigned char **to, size_t *to_length, const unsigned char *from, size_t from_length)
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{
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const zend_encoding *internal_encoding = zend_multibyte_get_internal_encoding();
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ZEND_ASSERT(internal_encoding);
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return zend_multibyte_encoding_converter(to, to_length, from, from_length,
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internal_encoding, zend_multibyte_encoding_utf8);
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}
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static void _yy_push_state(int new_state)
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{
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zend_stack_push(&SCNG(state_stack), (void *) &YYGETCONDITION());
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YYSETCONDITION(new_state);
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}
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#define yy_push_state(state_and_tsrm) _yy_push_state(yyc##state_and_tsrm)
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static void yy_pop_state(void)
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{
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int *stack_state = zend_stack_top(&SCNG(state_stack));
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YYSETCONDITION(*stack_state);
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zend_stack_del_top(&SCNG(state_stack));
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}
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static void yy_scan_buffer(char *str, unsigned int len)
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{
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YYCURSOR = (YYCTYPE*)str;
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YYLIMIT = YYCURSOR + len;
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if (!SCNG(yy_start)) {
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SCNG(yy_start) = YYCURSOR;
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}
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}
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void startup_scanner(void)
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{
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CG(parse_error) = 0;
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CG(doc_comment) = NULL;
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CG(extra_fn_flags) = 0;
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zend_stack_init(&SCNG(state_stack), sizeof(int));
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zend_ptr_stack_init(&SCNG(heredoc_label_stack));
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SCNG(heredoc_scan_ahead) = 0;
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}
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static void heredoc_label_dtor(zend_heredoc_label *heredoc_label) {
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efree(heredoc_label->label);
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}
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void shutdown_scanner(void)
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{
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CG(parse_error) = 0;
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RESET_DOC_COMMENT();
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zend_stack_destroy(&SCNG(state_stack));
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zend_ptr_stack_clean(&SCNG(heredoc_label_stack), (void (*)(void *)) &heredoc_label_dtor, 1);
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zend_ptr_stack_destroy(&SCNG(heredoc_label_stack));
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SCNG(heredoc_scan_ahead) = 0;
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SCNG(on_event) = NULL;
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}
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ZEND_API void zend_save_lexical_state(zend_lex_state *lex_state)
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{
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lex_state->yy_leng = SCNG(yy_leng);
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lex_state->yy_start = SCNG(yy_start);
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lex_state->yy_text = SCNG(yy_text);
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lex_state->yy_cursor = SCNG(yy_cursor);
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lex_state->yy_marker = SCNG(yy_marker);
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lex_state->yy_limit = SCNG(yy_limit);
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lex_state->state_stack = SCNG(state_stack);
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zend_stack_init(&SCNG(state_stack), sizeof(int));
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lex_state->heredoc_label_stack = SCNG(heredoc_label_stack);
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zend_ptr_stack_init(&SCNG(heredoc_label_stack));
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lex_state->in = SCNG(yy_in);
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lex_state->yy_state = YYSTATE;
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lex_state->filename = zend_get_compiled_filename();
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lex_state->lineno = CG(zend_lineno);
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lex_state->script_org = SCNG(script_org);
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lex_state->script_org_size = SCNG(script_org_size);
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lex_state->script_filtered = SCNG(script_filtered);
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lex_state->script_filtered_size = SCNG(script_filtered_size);
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lex_state->input_filter = SCNG(input_filter);
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lex_state->output_filter = SCNG(output_filter);
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lex_state->script_encoding = SCNG(script_encoding);
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lex_state->on_event = SCNG(on_event);
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lex_state->on_event_context = SCNG(on_event_context);
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lex_state->ast = CG(ast);
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lex_state->ast_arena = CG(ast_arena);
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}
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ZEND_API void zend_restore_lexical_state(zend_lex_state *lex_state)
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{
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SCNG(yy_leng) = lex_state->yy_leng;
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SCNG(yy_start) = lex_state->yy_start;
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SCNG(yy_text) = lex_state->yy_text;
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SCNG(yy_cursor) = lex_state->yy_cursor;
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SCNG(yy_marker) = lex_state->yy_marker;
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SCNG(yy_limit) = lex_state->yy_limit;
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zend_stack_destroy(&SCNG(state_stack));
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SCNG(state_stack) = lex_state->state_stack;
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zend_ptr_stack_clean(&SCNG(heredoc_label_stack), (void (*)(void *)) &heredoc_label_dtor, 1);
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zend_ptr_stack_destroy(&SCNG(heredoc_label_stack));
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SCNG(heredoc_label_stack) = lex_state->heredoc_label_stack;
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SCNG(yy_in) = lex_state->in;
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YYSETCONDITION(lex_state->yy_state);
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CG(zend_lineno) = lex_state->lineno;
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zend_restore_compiled_filename(lex_state->filename);
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if (SCNG(script_filtered)) {
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efree(SCNG(script_filtered));
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SCNG(script_filtered) = NULL;
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}
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SCNG(script_org) = lex_state->script_org;
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SCNG(script_org_size) = lex_state->script_org_size;
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SCNG(script_filtered) = lex_state->script_filtered;
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SCNG(script_filtered_size) = lex_state->script_filtered_size;
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SCNG(input_filter) = lex_state->input_filter;
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SCNG(output_filter) = lex_state->output_filter;
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SCNG(script_encoding) = lex_state->script_encoding;
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SCNG(on_event) = lex_state->on_event;
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SCNG(on_event_context) = lex_state->on_event_context;
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CG(ast) = lex_state->ast;
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CG(ast_arena) = lex_state->ast_arena;
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RESET_DOC_COMMENT();
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}
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ZEND_API void zend_destroy_file_handle(zend_file_handle *file_handle)
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{
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zend_llist_del_element(&CG(open_files), file_handle, (int (*)(void *, void *)) zend_compare_file_handles);
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/* zend_file_handle_dtor() operates on the copy, so we have to NULLify the original here */
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file_handle->opened_path = NULL;
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if (file_handle->free_filename) {
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file_handle->filename = NULL;
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}
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}
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ZEND_API void zend_lex_tstring(zval *zv)
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{
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if (SCNG(on_event)) {
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SCNG(on_event)(ON_FEEDBACK, T_STRING, 0, SCNG(on_event_context));
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}
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ZVAL_STRINGL(zv, (char*)SCNG(yy_text), SCNG(yy_leng));
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}
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#define BOM_UTF32_BE "\x00\x00\xfe\xff"
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#define BOM_UTF32_LE "\xff\xfe\x00\x00"
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#define BOM_UTF16_BE "\xfe\xff"
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#define BOM_UTF16_LE "\xff\xfe"
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#define BOM_UTF8 "\xef\xbb\xbf"
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static const zend_encoding *zend_multibyte_detect_utf_encoding(const unsigned char *script, size_t script_size)
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{
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const unsigned char *p;
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int wchar_size = 2;
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int le = 0;
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/* utf-16 or utf-32? */
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p = script;
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assert(p >= script);
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while ((size_t)(p-script) < script_size) {
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p = memchr(p, 0, script_size-(p-script)-2);
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if (!p) {
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break;
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}
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if (*(p+1) == '\0' && *(p+2) == '\0') {
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wchar_size = 4;
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break;
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}
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/* searching for UTF-32 specific byte orders, so this will do */
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p += 4;
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}
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/* BE or LE? */
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p = script;
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assert(p >= script);
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while ((size_t)(p-script) < script_size) {
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if (*p == '\0' && *(p+wchar_size-1) != '\0') {
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/* BE */
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le = 0;
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break;
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} else if (*p != '\0' && *(p+wchar_size-1) == '\0') {
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/* LE* */
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le = 1;
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break;
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}
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p += wchar_size;
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}
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if (wchar_size == 2) {
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return le ? zend_multibyte_encoding_utf16le : zend_multibyte_encoding_utf16be;
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} else {
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return le ? zend_multibyte_encoding_utf32le : zend_multibyte_encoding_utf32be;
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}
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return NULL;
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}
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static const zend_encoding* zend_multibyte_detect_unicode(void)
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{
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const zend_encoding *script_encoding = NULL;
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int bom_size;
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unsigned char *pos1, *pos2;
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if (LANG_SCNG(script_org_size) < sizeof(BOM_UTF32_LE)-1) {
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return NULL;
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}
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/* check out BOM */
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if (!memcmp(LANG_SCNG(script_org), BOM_UTF32_BE, sizeof(BOM_UTF32_BE)-1)) {
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script_encoding = zend_multibyte_encoding_utf32be;
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bom_size = sizeof(BOM_UTF32_BE)-1;
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} else if (!memcmp(LANG_SCNG(script_org), BOM_UTF32_LE, sizeof(BOM_UTF32_LE)-1)) {
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script_encoding = zend_multibyte_encoding_utf32le;
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bom_size = sizeof(BOM_UTF32_LE)-1;
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} else if (!memcmp(LANG_SCNG(script_org), BOM_UTF16_BE, sizeof(BOM_UTF16_BE)-1)) {
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script_encoding = zend_multibyte_encoding_utf16be;
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bom_size = sizeof(BOM_UTF16_BE)-1;
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} else if (!memcmp(LANG_SCNG(script_org), BOM_UTF16_LE, sizeof(BOM_UTF16_LE)-1)) {
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script_encoding = zend_multibyte_encoding_utf16le;
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bom_size = sizeof(BOM_UTF16_LE)-1;
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} else if (!memcmp(LANG_SCNG(script_org), BOM_UTF8, sizeof(BOM_UTF8)-1)) {
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script_encoding = zend_multibyte_encoding_utf8;
|
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bom_size = sizeof(BOM_UTF8)-1;
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}
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|
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if (script_encoding) {
|
|
/* remove BOM */
|
|
LANG_SCNG(script_org) += bom_size;
|
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LANG_SCNG(script_org_size) -= bom_size;
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|
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return script_encoding;
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|
}
|
|
|
|
/* script contains NULL bytes -> auto-detection */
|
|
if ((pos1 = memchr(LANG_SCNG(script_org), 0, LANG_SCNG(script_org_size)))) {
|
|
/* check if the NULL byte is after the __HALT_COMPILER(); */
|
|
pos2 = LANG_SCNG(script_org);
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|
|
|
while ((size_t)(pos1 - pos2) >= sizeof("__HALT_COMPILER();")-1) {
|
|
pos2 = memchr(pos2, '_', pos1 - pos2);
|
|
if (!pos2) break;
|
|
pos2++;
|
|
if (strncasecmp((char*)pos2, "_HALT_COMPILER", sizeof("_HALT_COMPILER")-1) == 0) {
|
|
pos2 += sizeof("_HALT_COMPILER")-1;
|
|
while (*pos2 == ' ' ||
|
|
*pos2 == '\t' ||
|
|
*pos2 == '\r' ||
|
|
*pos2 == '\n') {
|
|
pos2++;
|
|
}
|
|
if (*pos2 == '(') {
|
|
pos2++;
|
|
while (*pos2 == ' ' ||
|
|
*pos2 == '\t' ||
|
|
*pos2 == '\r' ||
|
|
*pos2 == '\n') {
|
|
pos2++;
|
|
}
|
|
if (*pos2 == ')') {
|
|
pos2++;
|
|
while (*pos2 == ' ' ||
|
|
*pos2 == '\t' ||
|
|
*pos2 == '\r' ||
|
|
*pos2 == '\n') {
|
|
pos2++;
|
|
}
|
|
if (*pos2 == ';') {
|
|
return NULL;
|
|
}
|
|
}
|
|
}
|
|
}
|
|
}
|
|
/* make best effort if BOM is missing */
|
|
return zend_multibyte_detect_utf_encoding(LANG_SCNG(script_org), LANG_SCNG(script_org_size));
|
|
}
|
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|
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return NULL;
|
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}
|
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|
|
static const zend_encoding* zend_multibyte_find_script_encoding(void)
|
|
{
|
|
const zend_encoding *script_encoding;
|
|
|
|
if (CG(detect_unicode)) {
|
|
/* check out bom(byte order mark) and see if containing wchars */
|
|
script_encoding = zend_multibyte_detect_unicode();
|
|
if (script_encoding != NULL) {
|
|
/* bom or wchar detection is prior to 'script_encoding' option */
|
|
return script_encoding;
|
|
}
|
|
}
|
|
|
|
/* if no script_encoding specified, just leave alone */
|
|
if (!CG(script_encoding_list) || !CG(script_encoding_list_size)) {
|
|
return NULL;
|
|
}
|
|
|
|
/* if multiple encodings specified, detect automagically */
|
|
if (CG(script_encoding_list_size) > 1) {
|
|
return zend_multibyte_encoding_detector(LANG_SCNG(script_org), LANG_SCNG(script_org_size), CG(script_encoding_list), CG(script_encoding_list_size));
|
|
}
|
|
|
|
return CG(script_encoding_list)[0];
|
|
}
|
|
|
|
ZEND_API int zend_multibyte_set_filter(const zend_encoding *onetime_encoding)
|
|
{
|
|
const zend_encoding *internal_encoding = zend_multibyte_get_internal_encoding();
|
|
const zend_encoding *script_encoding = onetime_encoding ? onetime_encoding: zend_multibyte_find_script_encoding();
|
|
|
|
if (!script_encoding) {
|
|
return FAILURE;
|
|
}
|
|
|
|
/* judge input/output filter */
|
|
LANG_SCNG(script_encoding) = script_encoding;
|
|
LANG_SCNG(input_filter) = NULL;
|
|
LANG_SCNG(output_filter) = NULL;
|
|
|
|
if (!internal_encoding || LANG_SCNG(script_encoding) == internal_encoding) {
|
|
if (!zend_multibyte_check_lexer_compatibility(LANG_SCNG(script_encoding))) {
|
|
/* and if not, work around w/ script_encoding -> utf-8 -> script_encoding conversion */
|
|
LANG_SCNG(input_filter) = encoding_filter_script_to_intermediate;
|
|
LANG_SCNG(output_filter) = encoding_filter_intermediate_to_script;
|
|
} else {
|
|
LANG_SCNG(input_filter) = NULL;
|
|
LANG_SCNG(output_filter) = NULL;
|
|
}
|
|
return SUCCESS;
|
|
}
|
|
|
|
if (zend_multibyte_check_lexer_compatibility(internal_encoding)) {
|
|
LANG_SCNG(input_filter) = encoding_filter_script_to_internal;
|
|
LANG_SCNG(output_filter) = NULL;
|
|
} else if (zend_multibyte_check_lexer_compatibility(LANG_SCNG(script_encoding))) {
|
|
LANG_SCNG(input_filter) = NULL;
|
|
LANG_SCNG(output_filter) = encoding_filter_script_to_internal;
|
|
} else {
|
|
/* both script and internal encodings are incompatible w/ flex */
|
|
LANG_SCNG(input_filter) = encoding_filter_script_to_intermediate;
|
|
LANG_SCNG(output_filter) = encoding_filter_intermediate_to_internal;
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
ZEND_API int open_file_for_scanning(zend_file_handle *file_handle)
|
|
{
|
|
char *buf;
|
|
size_t size, offset = 0;
|
|
zend_string *compiled_filename;
|
|
|
|
/* The shebang line was read, get the current position to obtain the buffer start */
|
|
if (CG(start_lineno) == 2 && file_handle->type == ZEND_HANDLE_FP && file_handle->handle.fp) {
|
|
if ((offset = ftell(file_handle->handle.fp)) == (size_t)-1) {
|
|
offset = 0;
|
|
}
|
|
}
|
|
|
|
if (zend_stream_fixup(file_handle, &buf, &size) == FAILURE) {
|
|
return FAILURE;
|
|
}
|
|
|
|
zend_llist_add_element(&CG(open_files), file_handle);
|
|
if (file_handle->handle.stream.handle >= (void*)file_handle && file_handle->handle.stream.handle <= (void*)(file_handle+1)) {
|
|
zend_file_handle *fh = (zend_file_handle*)zend_llist_get_last(&CG(open_files));
|
|
size_t diff = (char*)file_handle->handle.stream.handle - (char*)file_handle;
|
|
fh->handle.stream.handle = (void*)(((char*)fh) + diff);
|
|
file_handle->handle.stream.handle = fh->handle.stream.handle;
|
|
}
|
|
|
|
/* Reset the scanner for scanning the new file */
|
|
SCNG(yy_in) = file_handle;
|
|
SCNG(yy_start) = NULL;
|
|
|
|
if (size != (size_t)-1) {
|
|
if (CG(multibyte)) {
|
|
SCNG(script_org) = (unsigned char*)buf;
|
|
SCNG(script_org_size) = size;
|
|
SCNG(script_filtered) = NULL;
|
|
|
|
zend_multibyte_set_filter(NULL);
|
|
|
|
if (SCNG(input_filter)) {
|
|
if ((size_t)-1 == SCNG(input_filter)(&SCNG(script_filtered), &SCNG(script_filtered_size), SCNG(script_org), SCNG(script_org_size))) {
|
|
zend_error_noreturn(E_COMPILE_ERROR, "Could not convert the script from the detected "
|
|
"encoding \"%s\" to a compatible encoding", zend_multibyte_get_encoding_name(LANG_SCNG(script_encoding)));
|
|
}
|
|
buf = (char*)SCNG(script_filtered);
|
|
size = SCNG(script_filtered_size);
|
|
}
|
|
}
|
|
SCNG(yy_start) = (unsigned char *)buf - offset;
|
|
yy_scan_buffer(buf, (unsigned int)size);
|
|
} else {
|
|
zend_error_noreturn(E_COMPILE_ERROR, "zend_stream_mmap() failed");
|
|
}
|
|
|
|
BEGIN(INITIAL);
|
|
|
|
if (file_handle->opened_path) {
|
|
compiled_filename = zend_string_copy(file_handle->opened_path);
|
|
} else {
|
|
compiled_filename = zend_string_init(file_handle->filename, strlen(file_handle->filename), 0);
|
|
}
|
|
|
|
zend_set_compiled_filename(compiled_filename);
|
|
zend_string_release_ex(compiled_filename, 0);
|
|
|
|
if (CG(start_lineno)) {
|
|
CG(zend_lineno) = CG(start_lineno);
|
|
CG(start_lineno) = 0;
|
|
} else {
|
|
CG(zend_lineno) = 1;
|
|
}
|
|
|
|
RESET_DOC_COMMENT();
|
|
CG(increment_lineno) = 0;
|
|
return SUCCESS;
|
|
}
|
|
END_EXTERN_C()
|
|
|
|
static zend_op_array *zend_compile(int type)
|
|
{
|
|
zend_op_array *op_array = NULL;
|
|
zend_bool original_in_compilation = CG(in_compilation);
|
|
|
|
CG(in_compilation) = 1;
|
|
CG(ast) = NULL;
|
|
CG(ast_arena) = zend_arena_create(1024 * 32);
|
|
|
|
if (!zendparse()) {
|
|
int last_lineno = CG(zend_lineno);
|
|
zend_file_context original_file_context;
|
|
zend_oparray_context original_oparray_context;
|
|
zend_op_array *original_active_op_array = CG(active_op_array);
|
|
|
|
op_array = emalloc(sizeof(zend_op_array));
|
|
init_op_array(op_array, type, INITIAL_OP_ARRAY_SIZE);
|
|
CG(active_op_array) = op_array;
|
|
|
|
/* Use heap to not waste arena memory */
|
|
op_array->fn_flags |= ZEND_ACC_HEAP_RT_CACHE;
|
|
|
|
if (zend_ast_process) {
|
|
zend_ast_process(CG(ast));
|
|
}
|
|
|
|
zend_file_context_begin(&original_file_context);
|
|
zend_oparray_context_begin(&original_oparray_context);
|
|
zend_compile_top_stmt(CG(ast));
|
|
CG(zend_lineno) = last_lineno;
|
|
zend_emit_final_return(type == ZEND_USER_FUNCTION);
|
|
op_array->line_start = 1;
|
|
op_array->line_end = last_lineno;
|
|
pass_two(op_array);
|
|
zend_oparray_context_end(&original_oparray_context);
|
|
zend_file_context_end(&original_file_context);
|
|
|
|
CG(active_op_array) = original_active_op_array;
|
|
}
|
|
|
|
zend_ast_destroy(CG(ast));
|
|
zend_arena_destroy(CG(ast_arena));
|
|
|
|
CG(in_compilation) = original_in_compilation;
|
|
|
|
return op_array;
|
|
}
|
|
|
|
ZEND_API zend_op_array *compile_file(zend_file_handle *file_handle, int type)
|
|
{
|
|
zend_lex_state original_lex_state;
|
|
zend_op_array *op_array = NULL;
|
|
zend_save_lexical_state(&original_lex_state);
|
|
|
|
if (open_file_for_scanning(file_handle)==FAILURE) {
|
|
if (type==ZEND_REQUIRE) {
|
|
zend_message_dispatcher(ZMSG_FAILED_REQUIRE_FOPEN, file_handle->filename);
|
|
zend_bailout();
|
|
} else {
|
|
zend_message_dispatcher(ZMSG_FAILED_INCLUDE_FOPEN, file_handle->filename);
|
|
}
|
|
} else {
|
|
op_array = zend_compile(ZEND_USER_FUNCTION);
|
|
}
|
|
|
|
zend_restore_lexical_state(&original_lex_state);
|
|
return op_array;
|
|
}
|
|
|
|
|
|
zend_op_array *compile_filename(int type, zval *filename)
|
|
{
|
|
zend_file_handle file_handle;
|
|
zval tmp;
|
|
zend_op_array *retval;
|
|
zend_string *opened_path = NULL;
|
|
|
|
if (Z_TYPE_P(filename) != IS_STRING) {
|
|
ZVAL_STR(&tmp, zval_get_string(filename));
|
|
filename = &tmp;
|
|
}
|
|
file_handle.filename = Z_STRVAL_P(filename);
|
|
file_handle.free_filename = 0;
|
|
file_handle.type = ZEND_HANDLE_FILENAME;
|
|
file_handle.opened_path = NULL;
|
|
file_handle.handle.fp = NULL;
|
|
|
|
retval = zend_compile_file(&file_handle, type);
|
|
if (retval && file_handle.handle.stream.handle) {
|
|
if (!file_handle.opened_path) {
|
|
file_handle.opened_path = opened_path = zend_string_copy(Z_STR_P(filename));
|
|
}
|
|
|
|
zend_hash_add_empty_element(&EG(included_files), file_handle.opened_path);
|
|
|
|
if (opened_path) {
|
|
zend_string_release_ex(opened_path, 0);
|
|
}
|
|
}
|
|
zend_destroy_file_handle(&file_handle);
|
|
|
|
if (UNEXPECTED(filename == &tmp)) {
|
|
zval_ptr_dtor(&tmp);
|
|
}
|
|
return retval;
|
|
}
|
|
|
|
ZEND_API int zend_prepare_string_for_scanning(zval *str, char *filename)
|
|
{
|
|
char *buf;
|
|
size_t size, old_len;
|
|
zend_string *new_compiled_filename;
|
|
|
|
/* enforce ZEND_MMAP_AHEAD trailing NULLs for flex... */
|
|
old_len = Z_STRLEN_P(str);
|
|
Z_STR_P(str) = zend_string_extend(Z_STR_P(str), old_len + ZEND_MMAP_AHEAD, 0);
|
|
Z_TYPE_INFO_P(str) = IS_STRING_EX;
|
|
memset(Z_STRVAL_P(str) + old_len, 0, ZEND_MMAP_AHEAD + 1);
|
|
|
|
SCNG(yy_in) = NULL;
|
|
SCNG(yy_start) = NULL;
|
|
|
|
buf = Z_STRVAL_P(str);
|
|
size = old_len;
|
|
|
|
if (CG(multibyte)) {
|
|
SCNG(script_org) = (unsigned char*)buf;
|
|
SCNG(script_org_size) = size;
|
|
SCNG(script_filtered) = NULL;
|
|
|
|
zend_multibyte_set_filter(zend_multibyte_get_internal_encoding());
|
|
|
|
if (SCNG(input_filter)) {
|
|
if ((size_t)-1 == SCNG(input_filter)(&SCNG(script_filtered), &SCNG(script_filtered_size), SCNG(script_org), SCNG(script_org_size))) {
|
|
zend_error_noreturn(E_COMPILE_ERROR, "Could not convert the script from the detected "
|
|
"encoding \"%s\" to a compatible encoding", zend_multibyte_get_encoding_name(LANG_SCNG(script_encoding)));
|
|
}
|
|
buf = (char*)SCNG(script_filtered);
|
|
size = SCNG(script_filtered_size);
|
|
}
|
|
}
|
|
|
|
yy_scan_buffer(buf, (unsigned int)size);
|
|
|
|
new_compiled_filename = zend_string_init(filename, strlen(filename), 0);
|
|
zend_set_compiled_filename(new_compiled_filename);
|
|
zend_string_release_ex(new_compiled_filename, 0);
|
|
CG(zend_lineno) = 1;
|
|
CG(increment_lineno) = 0;
|
|
RESET_DOC_COMMENT();
|
|
return SUCCESS;
|
|
}
|
|
|
|
|
|
ZEND_API size_t zend_get_scanned_file_offset(void)
|
|
{
|
|
size_t offset = SCNG(yy_cursor) - SCNG(yy_start);
|
|
if (SCNG(input_filter)) {
|
|
size_t original_offset = offset, length = 0;
|
|
do {
|
|
unsigned char *p = NULL;
|
|
if ((size_t)-1 == SCNG(input_filter)(&p, &length, SCNG(script_org), offset)) {
|
|
return (size_t)-1;
|
|
}
|
|
efree(p);
|
|
if (length > original_offset) {
|
|
offset--;
|
|
} else if (length < original_offset) {
|
|
offset++;
|
|
}
|
|
} while (original_offset != length);
|
|
}
|
|
return offset;
|
|
}
|
|
|
|
zend_op_array *compile_string(zval *source_string, char *filename)
|
|
{
|
|
zend_lex_state original_lex_state;
|
|
zend_op_array *op_array = NULL;
|
|
zval tmp;
|
|
|
|
if (UNEXPECTED(Z_TYPE_P(source_string) != IS_STRING)) {
|
|
ZVAL_STR(&tmp, zval_get_string_func(source_string));
|
|
} else {
|
|
ZVAL_COPY(&tmp, source_string);
|
|
}
|
|
|
|
if (Z_STRLEN(tmp)==0) {
|
|
zval_ptr_dtor(&tmp);
|
|
return NULL;
|
|
}
|
|
|
|
zend_save_lexical_state(&original_lex_state);
|
|
if (zend_prepare_string_for_scanning(&tmp, filename) == SUCCESS) {
|
|
BEGIN(ST_IN_SCRIPTING);
|
|
op_array = zend_compile(ZEND_EVAL_CODE);
|
|
}
|
|
|
|
zend_restore_lexical_state(&original_lex_state);
|
|
zval_ptr_dtor(&tmp);
|
|
|
|
return op_array;
|
|
}
|
|
|
|
|
|
BEGIN_EXTERN_C()
|
|
int highlight_file(char *filename, zend_syntax_highlighter_ini *syntax_highlighter_ini)
|
|
{
|
|
zend_lex_state original_lex_state;
|
|
zend_file_handle file_handle;
|
|
|
|
file_handle.type = ZEND_HANDLE_FILENAME;
|
|
file_handle.filename = filename;
|
|
file_handle.free_filename = 0;
|
|
file_handle.opened_path = NULL;
|
|
zend_save_lexical_state(&original_lex_state);
|
|
if (open_file_for_scanning(&file_handle)==FAILURE) {
|
|
zend_message_dispatcher(ZMSG_FAILED_HIGHLIGHT_FOPEN, filename);
|
|
zend_restore_lexical_state(&original_lex_state);
|
|
return FAILURE;
|
|
}
|
|
zend_highlight(syntax_highlighter_ini);
|
|
if (SCNG(script_filtered)) {
|
|
efree(SCNG(script_filtered));
|
|
SCNG(script_filtered) = NULL;
|
|
}
|
|
zend_destroy_file_handle(&file_handle);
|
|
zend_restore_lexical_state(&original_lex_state);
|
|
return SUCCESS;
|
|
}
|
|
|
|
int highlight_string(zval *str, zend_syntax_highlighter_ini *syntax_highlighter_ini, char *str_name)
|
|
{
|
|
zend_lex_state original_lex_state;
|
|
zval tmp;
|
|
|
|
if (UNEXPECTED(Z_TYPE_P(str) != IS_STRING)) {
|
|
ZVAL_STR(&tmp, zval_get_string_func(str));
|
|
str = &tmp;
|
|
}
|
|
zend_save_lexical_state(&original_lex_state);
|
|
if (zend_prepare_string_for_scanning(str, str_name)==FAILURE) {
|
|
zend_restore_lexical_state(&original_lex_state);
|
|
if (UNEXPECTED(str == &tmp)) {
|
|
zval_ptr_dtor(&tmp);
|
|
}
|
|
return FAILURE;
|
|
}
|
|
BEGIN(INITIAL);
|
|
zend_highlight(syntax_highlighter_ini);
|
|
if (SCNG(script_filtered)) {
|
|
efree(SCNG(script_filtered));
|
|
SCNG(script_filtered) = NULL;
|
|
}
|
|
zend_restore_lexical_state(&original_lex_state);
|
|
if (UNEXPECTED(str == &tmp)) {
|
|
zval_ptr_dtor(&tmp);
|
|
}
|
|
return SUCCESS;
|
|
}
|
|
|
|
ZEND_API void zend_multibyte_yyinput_again(zend_encoding_filter old_input_filter, const zend_encoding *old_encoding)
|
|
{
|
|
size_t length;
|
|
unsigned char *new_yy_start;
|
|
|
|
/* convert and set */
|
|
if (!SCNG(input_filter)) {
|
|
if (SCNG(script_filtered)) {
|
|
efree(SCNG(script_filtered));
|
|
SCNG(script_filtered) = NULL;
|
|
}
|
|
SCNG(script_filtered_size) = 0;
|
|
length = SCNG(script_org_size);
|
|
new_yy_start = SCNG(script_org);
|
|
} else {
|
|
if ((size_t)-1 == SCNG(input_filter)(&new_yy_start, &length, SCNG(script_org), SCNG(script_org_size))) {
|
|
zend_error_noreturn(E_COMPILE_ERROR, "Could not convert the script from the detected "
|
|
"encoding \"%s\" to a compatible encoding", zend_multibyte_get_encoding_name(LANG_SCNG(script_encoding)));
|
|
}
|
|
if (SCNG(script_filtered)) {
|
|
efree(SCNG(script_filtered));
|
|
}
|
|
SCNG(script_filtered) = new_yy_start;
|
|
SCNG(script_filtered_size) = length;
|
|
}
|
|
|
|
SCNG(yy_cursor) = new_yy_start + (SCNG(yy_cursor) - SCNG(yy_start));
|
|
SCNG(yy_marker) = new_yy_start + (SCNG(yy_marker) - SCNG(yy_start));
|
|
SCNG(yy_text) = new_yy_start + (SCNG(yy_text) - SCNG(yy_start));
|
|
SCNG(yy_limit) = new_yy_start + length;
|
|
|
|
SCNG(yy_start) = new_yy_start;
|
|
}
|
|
|
|
|
|
// TODO: avoid reallocation ???
|
|
# define zend_copy_value(zendlval, yytext, yyleng) \
|
|
if (SCNG(output_filter)) { \
|
|
size_t sz = 0; \
|
|
char *s = NULL; \
|
|
SCNG(output_filter)((unsigned char **)&s, &sz, (unsigned char *)yytext, (size_t)yyleng); \
|
|
ZVAL_STRINGL(zendlval, s, sz); \
|
|
efree(s); \
|
|
} else if (yyleng == 1) { \
|
|
ZVAL_INTERNED_STR(zendlval, ZSTR_CHAR((zend_uchar)*(yytext))); \
|
|
} else { \
|
|
ZVAL_STRINGL(zendlval, yytext, yyleng); \
|
|
}
|
|
|
|
static int zend_scan_escape_string(zval *zendlval, char *str, int len, char quote_type)
|
|
{
|
|
register char *s, *t;
|
|
char *end;
|
|
|
|
if (len <= 1) {
|
|
if (len < 1) {
|
|
ZVAL_EMPTY_STRING(zendlval);
|
|
} else {
|
|
zend_uchar c = (zend_uchar)*str;
|
|
if (c == '\n' || c == '\r') {
|
|
CG(zend_lineno)++;
|
|
}
|
|
ZVAL_INTERNED_STR(zendlval, ZSTR_CHAR(c));
|
|
}
|
|
goto skip_escape_conversion;
|
|
}
|
|
|
|
ZVAL_STRINGL(zendlval, str, len);
|
|
|
|
/* convert escape sequences */
|
|
s = Z_STRVAL_P(zendlval);
|
|
end = s+Z_STRLEN_P(zendlval);
|
|
while (1) {
|
|
if (UNEXPECTED(*s=='\\')) {
|
|
break;
|
|
}
|
|
if (*s == '\n' || (*s == '\r' && (*(s+1) != '\n'))) {
|
|
CG(zend_lineno)++;
|
|
}
|
|
s++;
|
|
if (s == end) {
|
|
goto skip_escape_conversion;
|
|
}
|
|
}
|
|
|
|
t = s;
|
|
while (s<end) {
|
|
if (*s=='\\') {
|
|
s++;
|
|
if (s >= end) {
|
|
*t++ = '\\';
|
|
break;
|
|
}
|
|
|
|
switch(*s) {
|
|
case 'n':
|
|
*t++ = '\n';
|
|
break;
|
|
case 'r':
|
|
*t++ = '\r';
|
|
break;
|
|
case 't':
|
|
*t++ = '\t';
|
|
break;
|
|
case 'f':
|
|
*t++ = '\f';
|
|
break;
|
|
case 'v':
|
|
*t++ = '\v';
|
|
break;
|
|
case 'e':
|
|
#ifdef ZEND_WIN32
|
|
*t++ = VK_ESCAPE;
|
|
#else
|
|
*t++ = '\e';
|
|
#endif
|
|
break;
|
|
case '"':
|
|
case '`':
|
|
if (*s != quote_type) {
|
|
*t++ = '\\';
|
|
*t++ = *s;
|
|
break;
|
|
}
|
|
case '\\':
|
|
case '$':
|
|
*t++ = *s;
|
|
break;
|
|
case 'x':
|
|
case 'X':
|
|
if (ZEND_IS_HEX(*(s+1))) {
|
|
char hex_buf[3] = { 0, 0, 0 };
|
|
|
|
hex_buf[0] = *(++s);
|
|
if (ZEND_IS_HEX(*(s+1))) {
|
|
hex_buf[1] = *(++s);
|
|
}
|
|
*t++ = (char) ZEND_STRTOL(hex_buf, NULL, 16);
|
|
} else {
|
|
*t++ = '\\';
|
|
*t++ = *s;
|
|
}
|
|
break;
|
|
/* UTF-8 codepoint escape, format: /\\u\{\x+\}/ */
|
|
case 'u':
|
|
{
|
|
/* cache where we started so we can parse after validating */
|
|
char *start = s + 1;
|
|
size_t len = 0;
|
|
zend_bool valid = 1;
|
|
unsigned long codepoint;
|
|
|
|
if (*start != '{') {
|
|
/* we silently let this pass to avoid breaking code
|
|
* with JSON in string literals (e.g. "\"\u202e\""
|
|
*/
|
|
*t++ = '\\';
|
|
*t++ = 'u';
|
|
break;
|
|
} else {
|
|
/* on the other hand, invalid \u{blah} errors */
|
|
s++;
|
|
len++;
|
|
s++;
|
|
while (*s != '}') {
|
|
if (!ZEND_IS_HEX(*s)) {
|
|
valid = 0;
|
|
break;
|
|
} else {
|
|
len++;
|
|
}
|
|
s++;
|
|
}
|
|
if (*s == '}') {
|
|
valid = 1;
|
|
len++;
|
|
}
|
|
}
|
|
|
|
/* \u{} is invalid */
|
|
if (len <= 2) {
|
|
valid = 0;
|
|
}
|
|
|
|
if (!valid) {
|
|
zend_throw_exception(zend_ce_parse_error,
|
|
"Invalid UTF-8 codepoint escape sequence", 0);
|
|
zval_ptr_dtor(zendlval);
|
|
ZVAL_UNDEF(zendlval);
|
|
return FAILURE;
|
|
}
|
|
|
|
errno = 0;
|
|
codepoint = strtoul(start + 1, NULL, 16);
|
|
|
|
/* per RFC 3629, UTF-8 can only represent 21 bits */
|
|
if (codepoint > 0x10FFFF || errno) {
|
|
zend_throw_exception(zend_ce_parse_error,
|
|
"Invalid UTF-8 codepoint escape sequence: Codepoint too large", 0);
|
|
zval_ptr_dtor(zendlval);
|
|
ZVAL_UNDEF(zendlval);
|
|
return FAILURE;
|
|
}
|
|
|
|
/* based on https://en.wikipedia.org/wiki/UTF-8#Sample_code */
|
|
if (codepoint < 0x80) {
|
|
*t++ = codepoint;
|
|
} else if (codepoint <= 0x7FF) {
|
|
*t++ = (codepoint >> 6) + 0xC0;
|
|
*t++ = (codepoint & 0x3F) + 0x80;
|
|
} else if (codepoint <= 0xFFFF) {
|
|
*t++ = (codepoint >> 12) + 0xE0;
|
|
*t++ = ((codepoint >> 6) & 0x3F) + 0x80;
|
|
*t++ = (codepoint & 0x3F) + 0x80;
|
|
} else if (codepoint <= 0x10FFFF) {
|
|
*t++ = (codepoint >> 18) + 0xF0;
|
|
*t++ = ((codepoint >> 12) & 0x3F) + 0x80;
|
|
*t++ = ((codepoint >> 6) & 0x3F) + 0x80;
|
|
*t++ = (codepoint & 0x3F) + 0x80;
|
|
}
|
|
}
|
|
break;
|
|
default:
|
|
/* check for an octal */
|
|
if (ZEND_IS_OCT(*s)) {
|
|
char octal_buf[4] = { 0, 0, 0, 0 };
|
|
|
|
octal_buf[0] = *s;
|
|
if (ZEND_IS_OCT(*(s+1))) {
|
|
octal_buf[1] = *(++s);
|
|
if (ZEND_IS_OCT(*(s+1))) {
|
|
octal_buf[2] = *(++s);
|
|
}
|
|
}
|
|
if (octal_buf[2] &&
|
|
(octal_buf[0] > '3')) {
|
|
/* 3 octit values must not overflow 0xFF (\377) */
|
|
zend_error(E_COMPILE_WARNING, "Octal escape sequence overflow \\%s is greater than \\377", octal_buf);
|
|
}
|
|
|
|
*t++ = (char) ZEND_STRTOL(octal_buf, NULL, 8);
|
|
} else {
|
|
*t++ = '\\';
|
|
*t++ = *s;
|
|
}
|
|
break;
|
|
}
|
|
} else {
|
|
*t++ = *s;
|
|
}
|
|
|
|
if (*s == '\n' || (*s == '\r' && (*(s+1) != '\n'))) {
|
|
CG(zend_lineno)++;
|
|
}
|
|
s++;
|
|
}
|
|
*t = 0;
|
|
Z_STRLEN_P(zendlval) = t - Z_STRVAL_P(zendlval);
|
|
|
|
skip_escape_conversion:
|
|
if (SCNG(output_filter)) {
|
|
size_t sz = 0;
|
|
unsigned char *str;
|
|
// TODO: avoid realocation ???
|
|
s = Z_STRVAL_P(zendlval);
|
|
SCNG(output_filter)(&str, &sz, (unsigned char *)s, (size_t)Z_STRLEN_P(zendlval));
|
|
zval_ptr_dtor(zendlval);
|
|
ZVAL_STRINGL(zendlval, (char *) str, sz);
|
|
efree(str);
|
|
}
|
|
return SUCCESS;
|
|
}
|
|
|
|
#define HEREDOC_USING_SPACES 1
|
|
#define HEREDOC_USING_TABS 2
|
|
|
|
static const char *next_newline(const char *str, const char *end, size_t *newline_len) {
|
|
for (; str < end; str++) {
|
|
if (*str == '\r') {
|
|
*newline_len = str + 1 < end && *(str + 1) == '\n' ? 2 : 1;
|
|
} else if (*str == '\n') {
|
|
*newline_len = 1;
|
|
return str;
|
|
}
|
|
}
|
|
*newline_len = 0;
|
|
return NULL;
|
|
}
|
|
|
|
static zend_bool strip_multiline_string_indentation(
|
|
zval *zendlval, int indentation, zend_bool using_spaces,
|
|
zend_bool newline_at_start, zend_bool newline_at_end)
|
|
{
|
|
const char *str = Z_STRVAL_P(zendlval), *end = str + Z_STRLEN_P(zendlval);
|
|
char *copy = Z_STRVAL_P(zendlval);
|
|
|
|
int newline_count = 0;
|
|
size_t newline_len;
|
|
const char *nl;
|
|
|
|
if (!newline_at_start) {
|
|
nl = next_newline(str, end, &newline_len);
|
|
if (!nl) {
|
|
return 1;
|
|
}
|
|
|
|
str = nl + newline_len;
|
|
copy = (char *) nl + newline_len;
|
|
newline_count++;
|
|
} else {
|
|
nl = str;
|
|
}
|
|
|
|
/* <= intentional */
|
|
while (str <= end && nl) {
|
|
size_t skip;
|
|
nl = next_newline(str, end, &newline_len);
|
|
if (!nl && newline_at_end) {
|
|
nl = end;
|
|
}
|
|
|
|
/* Try to skip indentation */
|
|
for (skip = 0; skip < indentation; skip++, str++) {
|
|
if (str == nl) {
|
|
/* Don't require full indentation on whitespace-only lines */
|
|
break;
|
|
}
|
|
|
|
if (str == end || (*str != ' ' && *str != '\t')) {
|
|
CG(zend_lineno) += newline_count;
|
|
zend_throw_exception_ex(zend_ce_parse_error, 0,
|
|
"Invalid body indentation level (expecting an indentation level of at least %d)", indentation);
|
|
goto error;
|
|
}
|
|
|
|
if ((!using_spaces && *str == ' ') || (using_spaces && *str == '\t')) {
|
|
CG(zend_lineno) += newline_count;
|
|
zend_throw_exception(zend_ce_parse_error,
|
|
"Invalid indentation - tabs and spaces cannot be mixed", 0);
|
|
goto error;
|
|
}
|
|
}
|
|
|
|
if (str == end) {
|
|
break;
|
|
}
|
|
|
|
size_t len = nl ? (nl - str + newline_len) : (end - str);
|
|
memmove(copy, str, len);
|
|
str += len;
|
|
copy += len;
|
|
newline_count++;
|
|
}
|
|
|
|
*copy = '\0';
|
|
Z_STRLEN_P(zendlval) = copy - Z_STRVAL_P(zendlval);
|
|
return 1;
|
|
|
|
error:
|
|
zval_ptr_dtor_str(zendlval);
|
|
ZVAL_UNDEF(zendlval);
|
|
|
|
return 0;
|
|
}
|
|
|
|
static void copy_heredoc_label_stack(void *void_heredoc_label)
|
|
{
|
|
zend_heredoc_label *heredoc_label = void_heredoc_label;
|
|
zend_heredoc_label *new_heredoc_label = emalloc(sizeof(zend_heredoc_label));
|
|
|
|
*new_heredoc_label = *heredoc_label;
|
|
new_heredoc_label->label = estrndup(heredoc_label->label, heredoc_label->length);
|
|
|
|
zend_ptr_stack_push(&SCNG(heredoc_label_stack), (void *) new_heredoc_label);
|
|
}
|
|
|
|
#define PARSER_MODE() \
|
|
EXPECTED(elem != NULL)
|
|
|
|
#define RETURN_TOKEN(_token) do { \
|
|
token = _token; \
|
|
goto emit_token; \
|
|
} while (0)
|
|
|
|
#define RETURN_TOKEN_WITH_VAL(_token) do { \
|
|
token = _token; \
|
|
goto emit_token_with_val; \
|
|
} while (0)
|
|
|
|
#define RETURN_TOKEN_WITH_STR(_token, _offset) do { \
|
|
token = _token; \
|
|
offset = _offset; \
|
|
goto emit_token_with_str; \
|
|
} while (0)
|
|
|
|
#define SKIP_TOKEN(_token) do { \
|
|
token = _token; \
|
|
goto skip_token; \
|
|
} while (0)
|
|
|
|
int ZEND_FASTCALL lex_scan(zval *zendlval, zend_parser_stack_elem *elem)
|
|
{
|
|
int token;
|
|
int offset;
|
|
int start_line = CG(zend_lineno);
|
|
|
|
ZVAL_UNDEF(zendlval);
|
|
restart:
|
|
SCNG(yy_text) = YYCURSOR;
|
|
|
|
/*!re2c
|
|
re2c:yyfill:check = 0;
|
|
LNUM [0-9]+(_[0-9]+)*
|
|
DNUM ({LNUM}?"."{LNUM})|({LNUM}"."{LNUM}?)
|
|
EXPONENT_DNUM (({LNUM}|{DNUM})[eE][+-]?{LNUM})
|
|
HNUM "0x"[0-9a-fA-F]+(_[0-9a-fA-F]+)*
|
|
BNUM "0b"[01]+(_[01]+)*
|
|
LABEL [a-zA-Z_\x80-\xff][a-zA-Z0-9_\x80-\xff]*
|
|
WHITESPACE [ \n\r\t]+
|
|
TABS_AND_SPACES [ \t]*
|
|
TOKENS [;:,.\[\]()|^&+-/*=%!~$<>?@]
|
|
ANY_CHAR [^]
|
|
NEWLINE ("\r"|"\n"|"\r\n")
|
|
|
|
/* compute yyleng before each rule */
|
|
<!*> := yyleng = YYCURSOR - SCNG(yy_text);
|
|
|
|
<ST_IN_SCRIPTING>"exit" {
|
|
RETURN_TOKEN(T_EXIT);
|
|
}
|
|
|
|
<ST_IN_SCRIPTING>"die" {
|
|
RETURN_TOKEN(T_EXIT);
|
|
}
|
|
|
|
<ST_IN_SCRIPTING>"fn" {
|
|
RETURN_TOKEN(T_FN);
|
|
}
|
|
|
|
<ST_IN_SCRIPTING>"function" {
|
|
RETURN_TOKEN(T_FUNCTION);
|
|
}
|
|
|
|
<ST_IN_SCRIPTING>"const" {
|
|
RETURN_TOKEN(T_CONST);
|
|
}
|
|
|
|
<ST_IN_SCRIPTING>"return" {
|
|
RETURN_TOKEN(T_RETURN);
|
|
}
|
|
|
|
<ST_IN_SCRIPTING>"yield"{WHITESPACE}"from"[^a-zA-Z0-9_\x80-\xff] {
|
|
yyless(yyleng - 1);
|
|
HANDLE_NEWLINES(yytext, yyleng);
|
|
RETURN_TOKEN(T_YIELD_FROM);
|
|
}
|
|
|
|
<ST_IN_SCRIPTING>"yield" {
|
|
RETURN_TOKEN(T_YIELD);
|
|
}
|
|
|
|
<ST_IN_SCRIPTING>"try" {
|
|
RETURN_TOKEN(T_TRY);
|
|
}
|
|
|
|
<ST_IN_SCRIPTING>"catch" {
|
|
RETURN_TOKEN(T_CATCH);
|
|
}
|
|
|
|
<ST_IN_SCRIPTING>"finally" {
|
|
RETURN_TOKEN(T_FINALLY);
|
|
}
|
|
|
|
<ST_IN_SCRIPTING>"throw" {
|
|
RETURN_TOKEN(T_THROW);
|
|
}
|
|
|
|
<ST_IN_SCRIPTING>"if" {
|
|
RETURN_TOKEN(T_IF);
|
|
}
|
|
|
|
<ST_IN_SCRIPTING>"elseif" {
|
|
RETURN_TOKEN(T_ELSEIF);
|
|
}
|
|
|
|
<ST_IN_SCRIPTING>"endif" {
|
|
RETURN_TOKEN(T_ENDIF);
|
|
}
|
|
|
|
<ST_IN_SCRIPTING>"else" {
|
|
RETURN_TOKEN(T_ELSE);
|
|
}
|
|
|
|
<ST_IN_SCRIPTING>"while" {
|
|
RETURN_TOKEN(T_WHILE);
|
|
}
|
|
|
|
<ST_IN_SCRIPTING>"endwhile" {
|
|
RETURN_TOKEN(T_ENDWHILE);
|
|
}
|
|
|
|
<ST_IN_SCRIPTING>"do" {
|
|
RETURN_TOKEN(T_DO);
|
|
}
|
|
|
|
<ST_IN_SCRIPTING>"for" {
|
|
RETURN_TOKEN(T_FOR);
|
|
}
|
|
|
|
<ST_IN_SCRIPTING>"endfor" {
|
|
RETURN_TOKEN(T_ENDFOR);
|
|
}
|
|
|
|
<ST_IN_SCRIPTING>"foreach" {
|
|
RETURN_TOKEN(T_FOREACH);
|
|
}
|
|
|
|
<ST_IN_SCRIPTING>"endforeach" {
|
|
RETURN_TOKEN(T_ENDFOREACH);
|
|
}
|
|
|
|
<ST_IN_SCRIPTING>"declare" {
|
|
RETURN_TOKEN(T_DECLARE);
|
|
}
|
|
|
|
<ST_IN_SCRIPTING>"enddeclare" {
|
|
RETURN_TOKEN(T_ENDDECLARE);
|
|
}
|
|
|
|
<ST_IN_SCRIPTING>"instanceof" {
|
|
RETURN_TOKEN(T_INSTANCEOF);
|
|
}
|
|
|
|
<ST_IN_SCRIPTING>"as" {
|
|
RETURN_TOKEN(T_AS);
|
|
}
|
|
|
|
<ST_IN_SCRIPTING>"switch" {
|
|
RETURN_TOKEN(T_SWITCH);
|
|
}
|
|
|
|
<ST_IN_SCRIPTING>"endswitch" {
|
|
RETURN_TOKEN(T_ENDSWITCH);
|
|
}
|
|
|
|
<ST_IN_SCRIPTING>"case" {
|
|
RETURN_TOKEN(T_CASE);
|
|
}
|
|
|
|
<ST_IN_SCRIPTING>"default" {
|
|
RETURN_TOKEN(T_DEFAULT);
|
|
}
|
|
|
|
<ST_IN_SCRIPTING>"break" {
|
|
RETURN_TOKEN(T_BREAK);
|
|
}
|
|
|
|
<ST_IN_SCRIPTING>"continue" {
|
|
RETURN_TOKEN(T_CONTINUE);
|
|
}
|
|
|
|
<ST_IN_SCRIPTING>"goto" {
|
|
RETURN_TOKEN(T_GOTO);
|
|
}
|
|
|
|
<ST_IN_SCRIPTING>"echo" {
|
|
RETURN_TOKEN(T_ECHO);
|
|
}
|
|
|
|
<ST_IN_SCRIPTING>"print" {
|
|
RETURN_TOKEN(T_PRINT);
|
|
}
|
|
|
|
<ST_IN_SCRIPTING>"class" {
|
|
RETURN_TOKEN(T_CLASS);
|
|
}
|
|
|
|
<ST_IN_SCRIPTING>"interface" {
|
|
RETURN_TOKEN(T_INTERFACE);
|
|
}
|
|
|
|
<ST_IN_SCRIPTING>"trait" {
|
|
RETURN_TOKEN(T_TRAIT);
|
|
}
|
|
|
|
<ST_IN_SCRIPTING>"extends" {
|
|
RETURN_TOKEN(T_EXTENDS);
|
|
}
|
|
|
|
<ST_IN_SCRIPTING>"implements" {
|
|
RETURN_TOKEN(T_IMPLEMENTS);
|
|
}
|
|
|
|
<ST_IN_SCRIPTING>"->" {
|
|
yy_push_state(ST_LOOKING_FOR_PROPERTY);
|
|
RETURN_TOKEN(T_OBJECT_OPERATOR);
|
|
}
|
|
|
|
<ST_IN_SCRIPTING,ST_LOOKING_FOR_PROPERTY>{WHITESPACE}+ {
|
|
goto return_whitespace;
|
|
}
|
|
|
|
<ST_LOOKING_FOR_PROPERTY>"->" {
|
|
RETURN_TOKEN(T_OBJECT_OPERATOR);
|
|
}
|
|
|
|
<ST_LOOKING_FOR_PROPERTY>{LABEL} {
|
|
yy_pop_state();
|
|
RETURN_TOKEN_WITH_STR(T_STRING, 0);
|
|
}
|
|
|
|
<ST_LOOKING_FOR_PROPERTY>{ANY_CHAR} {
|
|
yyless(0);
|
|
yy_pop_state();
|
|
goto restart;
|
|
}
|
|
|
|
<ST_IN_SCRIPTING>"::" {
|
|
RETURN_TOKEN(T_PAAMAYIM_NEKUDOTAYIM);
|
|
}
|
|
|
|
<ST_IN_SCRIPTING>"\\" {
|
|
RETURN_TOKEN(T_NS_SEPARATOR);
|
|
}
|
|
|
|
<ST_IN_SCRIPTING>"..." {
|
|
RETURN_TOKEN(T_ELLIPSIS);
|
|
}
|
|
|
|
<ST_IN_SCRIPTING>"??" {
|
|
RETURN_TOKEN(T_COALESCE);
|
|
}
|
|
|
|
<ST_IN_SCRIPTING>"new" {
|
|
RETURN_TOKEN(T_NEW);
|
|
}
|
|
|
|
<ST_IN_SCRIPTING>"clone" {
|
|
RETURN_TOKEN(T_CLONE);
|
|
}
|
|
|
|
<ST_IN_SCRIPTING>"var" {
|
|
RETURN_TOKEN(T_VAR);
|
|
}
|
|
|
|
<ST_IN_SCRIPTING>"("{TABS_AND_SPACES}("int"|"integer"){TABS_AND_SPACES}")" {
|
|
RETURN_TOKEN(T_INT_CAST);
|
|
}
|
|
|
|
<ST_IN_SCRIPTING>"("{TABS_AND_SPACES}("real"|"double"|"float"){TABS_AND_SPACES}")" {
|
|
RETURN_TOKEN(T_DOUBLE_CAST);
|
|
}
|
|
|
|
<ST_IN_SCRIPTING>"("{TABS_AND_SPACES}("string"|"binary"){TABS_AND_SPACES}")" {
|
|
RETURN_TOKEN(T_STRING_CAST);
|
|
}
|
|
|
|
<ST_IN_SCRIPTING>"("{TABS_AND_SPACES}"array"{TABS_AND_SPACES}")" {
|
|
RETURN_TOKEN(T_ARRAY_CAST);
|
|
}
|
|
|
|
<ST_IN_SCRIPTING>"("{TABS_AND_SPACES}"object"{TABS_AND_SPACES}")" {
|
|
RETURN_TOKEN(T_OBJECT_CAST);
|
|
}
|
|
|
|
<ST_IN_SCRIPTING>"("{TABS_AND_SPACES}("bool"|"boolean"){TABS_AND_SPACES}")" {
|
|
RETURN_TOKEN(T_BOOL_CAST);
|
|
}
|
|
|
|
<ST_IN_SCRIPTING>"("{TABS_AND_SPACES}("unset"){TABS_AND_SPACES}")" {
|
|
RETURN_TOKEN(T_UNSET_CAST);
|
|
}
|
|
|
|
<ST_IN_SCRIPTING>"eval" {
|
|
RETURN_TOKEN(T_EVAL);
|
|
}
|
|
|
|
<ST_IN_SCRIPTING>"include" {
|
|
RETURN_TOKEN(T_INCLUDE);
|
|
}
|
|
|
|
<ST_IN_SCRIPTING>"include_once" {
|
|
RETURN_TOKEN(T_INCLUDE_ONCE);
|
|
}
|
|
|
|
<ST_IN_SCRIPTING>"require" {
|
|
RETURN_TOKEN(T_REQUIRE);
|
|
}
|
|
|
|
<ST_IN_SCRIPTING>"require_once" {
|
|
RETURN_TOKEN(T_REQUIRE_ONCE);
|
|
}
|
|
|
|
<ST_IN_SCRIPTING>"namespace" {
|
|
RETURN_TOKEN(T_NAMESPACE);
|
|
}
|
|
|
|
<ST_IN_SCRIPTING>"use" {
|
|
RETURN_TOKEN(T_USE);
|
|
}
|
|
|
|
<ST_IN_SCRIPTING>"insteadof" {
|
|
RETURN_TOKEN(T_INSTEADOF);
|
|
}
|
|
|
|
<ST_IN_SCRIPTING>"global" {
|
|
RETURN_TOKEN(T_GLOBAL);
|
|
}
|
|
|
|
<ST_IN_SCRIPTING>"isset" {
|
|
RETURN_TOKEN(T_ISSET);
|
|
}
|
|
|
|
<ST_IN_SCRIPTING>"empty" {
|
|
RETURN_TOKEN(T_EMPTY);
|
|
}
|
|
|
|
<ST_IN_SCRIPTING>"__halt_compiler" {
|
|
RETURN_TOKEN(T_HALT_COMPILER);
|
|
}
|
|
|
|
<ST_IN_SCRIPTING>"static" {
|
|
RETURN_TOKEN(T_STATIC);
|
|
}
|
|
|
|
<ST_IN_SCRIPTING>"abstract" {
|
|
RETURN_TOKEN(T_ABSTRACT);
|
|
}
|
|
|
|
<ST_IN_SCRIPTING>"final" {
|
|
RETURN_TOKEN(T_FINAL);
|
|
}
|
|
|
|
<ST_IN_SCRIPTING>"private" {
|
|
RETURN_TOKEN(T_PRIVATE);
|
|
}
|
|
|
|
<ST_IN_SCRIPTING>"protected" {
|
|
RETURN_TOKEN(T_PROTECTED);
|
|
}
|
|
|
|
<ST_IN_SCRIPTING>"public" {
|
|
RETURN_TOKEN(T_PUBLIC);
|
|
}
|
|
|
|
<ST_IN_SCRIPTING>"unset" {
|
|
RETURN_TOKEN(T_UNSET);
|
|
}
|
|
|
|
<ST_IN_SCRIPTING>"=>" {
|
|
RETURN_TOKEN(T_DOUBLE_ARROW);
|
|
}
|
|
|
|
<ST_IN_SCRIPTING>"list" {
|
|
RETURN_TOKEN(T_LIST);
|
|
}
|
|
|
|
<ST_IN_SCRIPTING>"array" {
|
|
RETURN_TOKEN(T_ARRAY);
|
|
}
|
|
|
|
<ST_IN_SCRIPTING>"callable" {
|
|
RETURN_TOKEN(T_CALLABLE);
|
|
}
|
|
|
|
<ST_IN_SCRIPTING>"++" {
|
|
RETURN_TOKEN(T_INC);
|
|
}
|
|
|
|
<ST_IN_SCRIPTING>"--" {
|
|
RETURN_TOKEN(T_DEC);
|
|
}
|
|
|
|
<ST_IN_SCRIPTING>"===" {
|
|
RETURN_TOKEN(T_IS_IDENTICAL);
|
|
}
|
|
|
|
<ST_IN_SCRIPTING>"!==" {
|
|
RETURN_TOKEN(T_IS_NOT_IDENTICAL);
|
|
}
|
|
|
|
<ST_IN_SCRIPTING>"==" {
|
|
RETURN_TOKEN(T_IS_EQUAL);
|
|
}
|
|
|
|
<ST_IN_SCRIPTING>"!="|"<>" {
|
|
RETURN_TOKEN(T_IS_NOT_EQUAL);
|
|
}
|
|
|
|
<ST_IN_SCRIPTING>"<=>" {
|
|
RETURN_TOKEN(T_SPACESHIP);
|
|
}
|
|
|
|
<ST_IN_SCRIPTING>"<=" {
|
|
RETURN_TOKEN(T_IS_SMALLER_OR_EQUAL);
|
|
}
|
|
|
|
<ST_IN_SCRIPTING>">=" {
|
|
RETURN_TOKEN(T_IS_GREATER_OR_EQUAL);
|
|
}
|
|
|
|
<ST_IN_SCRIPTING>"+=" {
|
|
RETURN_TOKEN(T_PLUS_EQUAL);
|
|
}
|
|
|
|
<ST_IN_SCRIPTING>"-=" {
|
|
RETURN_TOKEN(T_MINUS_EQUAL);
|
|
}
|
|
|
|
<ST_IN_SCRIPTING>"*=" {
|
|
RETURN_TOKEN(T_MUL_EQUAL);
|
|
}
|
|
|
|
<ST_IN_SCRIPTING>"*\*" {
|
|
RETURN_TOKEN(T_POW);
|
|
}
|
|
|
|
<ST_IN_SCRIPTING>"*\*=" {
|
|
RETURN_TOKEN(T_POW_EQUAL);
|
|
}
|
|
|
|
<ST_IN_SCRIPTING>"/=" {
|
|
RETURN_TOKEN(T_DIV_EQUAL);
|
|
}
|
|
|
|
<ST_IN_SCRIPTING>".=" {
|
|
RETURN_TOKEN(T_CONCAT_EQUAL);
|
|
}
|
|
|
|
<ST_IN_SCRIPTING>"%=" {
|
|
RETURN_TOKEN(T_MOD_EQUAL);
|
|
}
|
|
|
|
<ST_IN_SCRIPTING>"<<=" {
|
|
RETURN_TOKEN(T_SL_EQUAL);
|
|
}
|
|
|
|
<ST_IN_SCRIPTING>">>=" {
|
|
RETURN_TOKEN(T_SR_EQUAL);
|
|
}
|
|
|
|
<ST_IN_SCRIPTING>"&=" {
|
|
RETURN_TOKEN(T_AND_EQUAL);
|
|
}
|
|
|
|
<ST_IN_SCRIPTING>"|=" {
|
|
RETURN_TOKEN(T_OR_EQUAL);
|
|
}
|
|
|
|
<ST_IN_SCRIPTING>"^=" {
|
|
RETURN_TOKEN(T_XOR_EQUAL);
|
|
}
|
|
|
|
<ST_IN_SCRIPTING>"??=" {
|
|
RETURN_TOKEN(T_COALESCE_EQUAL);
|
|
}
|
|
|
|
<ST_IN_SCRIPTING>"||" {
|
|
RETURN_TOKEN(T_BOOLEAN_OR);
|
|
}
|
|
|
|
<ST_IN_SCRIPTING>"&&" {
|
|
RETURN_TOKEN(T_BOOLEAN_AND);
|
|
}
|
|
|
|
<ST_IN_SCRIPTING>"OR" {
|
|
RETURN_TOKEN(T_LOGICAL_OR);
|
|
}
|
|
|
|
<ST_IN_SCRIPTING>"AND" {
|
|
RETURN_TOKEN(T_LOGICAL_AND);
|
|
}
|
|
|
|
<ST_IN_SCRIPTING>"XOR" {
|
|
RETURN_TOKEN(T_LOGICAL_XOR);
|
|
}
|
|
|
|
<ST_IN_SCRIPTING>"<<" {
|
|
RETURN_TOKEN(T_SL);
|
|
}
|
|
|
|
<ST_IN_SCRIPTING>">>" {
|
|
RETURN_TOKEN(T_SR);
|
|
}
|
|
|
|
<ST_IN_SCRIPTING>{TOKENS} {
|
|
RETURN_TOKEN(yytext[0]);
|
|
}
|
|
|
|
|
|
<ST_IN_SCRIPTING>"{" {
|
|
yy_push_state(ST_IN_SCRIPTING);
|
|
RETURN_TOKEN('{');
|
|
}
|
|
|
|
|
|
<ST_DOUBLE_QUOTES,ST_BACKQUOTE,ST_HEREDOC>"${" {
|
|
yy_push_state(ST_LOOKING_FOR_VARNAME);
|
|
RETURN_TOKEN(T_DOLLAR_OPEN_CURLY_BRACES);
|
|
}
|
|
|
|
|
|
<ST_IN_SCRIPTING>"}" {
|
|
RESET_DOC_COMMENT();
|
|
if (!zend_stack_is_empty(&SCNG(state_stack))) {
|
|
yy_pop_state();
|
|
}
|
|
RETURN_TOKEN('}');
|
|
}
|
|
|
|
|
|
<ST_LOOKING_FOR_VARNAME>{LABEL}[[}] {
|
|
yyless(yyleng - 1);
|
|
yy_pop_state();
|
|
yy_push_state(ST_IN_SCRIPTING);
|
|
RETURN_TOKEN_WITH_STR(T_STRING_VARNAME, 0);
|
|
}
|
|
|
|
|
|
<ST_LOOKING_FOR_VARNAME>{ANY_CHAR} {
|
|
yyless(0);
|
|
yy_pop_state();
|
|
yy_push_state(ST_IN_SCRIPTING);
|
|
goto restart;
|
|
}
|
|
|
|
<ST_IN_SCRIPTING>{BNUM} {
|
|
/* The +/- 2 skips "0b" */
|
|
int len = yyleng - 2, contains_underscores;
|
|
char *end, *bin = yytext + 2;
|
|
|
|
/* Skip any leading 0s */
|
|
while (*bin == '0' || *bin == '_') {
|
|
++bin;
|
|
--len;
|
|
}
|
|
|
|
contains_underscores = (memchr(bin, '_', len) != NULL);
|
|
|
|
if (contains_underscores) {
|
|
bin = estrndup(bin, len);
|
|
strip_underscores(bin, &len);
|
|
}
|
|
|
|
if (len < SIZEOF_ZEND_LONG * 8) {
|
|
if (len == 0) {
|
|
ZVAL_LONG(zendlval, 0);
|
|
} else {
|
|
errno = 0;
|
|
ZVAL_LONG(zendlval, ZEND_STRTOL(bin, &end, 2));
|
|
ZEND_ASSERT(!errno && end == bin + len);
|
|
}
|
|
if (contains_underscores) {
|
|
efree(bin);
|
|
}
|
|
RETURN_TOKEN_WITH_VAL(T_LNUMBER);
|
|
} else {
|
|
ZVAL_DOUBLE(zendlval, zend_bin_strtod(bin, (const char **)&end));
|
|
/* errno isn't checked since we allow HUGE_VAL/INF overflow */
|
|
ZEND_ASSERT(end == bin + len);
|
|
if (contains_underscores) {
|
|
efree(bin);
|
|
}
|
|
RETURN_TOKEN_WITH_VAL(T_DNUMBER);
|
|
}
|
|
}
|
|
|
|
<ST_IN_SCRIPTING>{LNUM} {
|
|
int len = yyleng, contains_underscores;
|
|
char *end, *lnum = yytext;
|
|
|
|
contains_underscores = (memchr(lnum, '_', len) != NULL);
|
|
|
|
if (contains_underscores) {
|
|
lnum = estrndup(lnum, len);
|
|
strip_underscores(lnum, &len);
|
|
}
|
|
|
|
if (len < MAX_LENGTH_OF_LONG - 1) { /* Won't overflow */
|
|
errno = 0;
|
|
/* base must be passed explicitly for correct parse error on Windows */
|
|
ZVAL_LONG(zendlval, ZEND_STRTOL(lnum, &end, lnum[0] == '0' ? 8 : 10));
|
|
/* This isn't an assert, we need to ensure 019 isn't valid octal
|
|
* Because the lexing itself doesn't do that for us
|
|
*/
|
|
if (end != lnum + len) {
|
|
zend_throw_exception(zend_ce_parse_error, "Invalid numeric literal", 0);
|
|
ZVAL_UNDEF(zendlval);
|
|
if (contains_underscores) {
|
|
efree(lnum);
|
|
}
|
|
if (PARSER_MODE()) {
|
|
RETURN_TOKEN(T_ERROR);
|
|
}
|
|
RETURN_TOKEN_WITH_VAL(T_LNUMBER);
|
|
}
|
|
} else {
|
|
errno = 0;
|
|
ZVAL_LONG(zendlval, ZEND_STRTOL(lnum, &end, 0));
|
|
if (errno == ERANGE) { /* Overflow */
|
|
errno = 0;
|
|
if (lnum[0] == '0') { /* octal overflow */
|
|
ZVAL_DOUBLE(zendlval, zend_oct_strtod(lnum, (const char **)&end));
|
|
} else {
|
|
ZVAL_DOUBLE(zendlval, zend_strtod(lnum, (const char **)&end));
|
|
}
|
|
/* Also not an assert for the same reason */
|
|
if (end != lnum + len) {
|
|
zend_throw_exception(zend_ce_parse_error,
|
|
"Invalid numeric literal", 0);
|
|
ZVAL_UNDEF(zendlval);
|
|
if (contains_underscores) {
|
|
efree(lnum);
|
|
}
|
|
if (PARSER_MODE()) {
|
|
RETURN_TOKEN(T_ERROR);
|
|
}
|
|
}
|
|
if (contains_underscores) {
|
|
efree(lnum);
|
|
}
|
|
RETURN_TOKEN_WITH_VAL(T_DNUMBER);
|
|
}
|
|
/* Also not an assert for the same reason */
|
|
if (end != lnum + len) {
|
|
zend_throw_exception(zend_ce_parse_error, "Invalid numeric literal", 0);
|
|
ZVAL_UNDEF(zendlval);
|
|
if (contains_underscores) {
|
|
efree(lnum);
|
|
}
|
|
if (PARSER_MODE()) {
|
|
RETURN_TOKEN(T_ERROR);
|
|
}
|
|
RETURN_TOKEN_WITH_VAL(T_DNUMBER);
|
|
}
|
|
}
|
|
ZEND_ASSERT(!errno);
|
|
if (contains_underscores) {
|
|
efree(lnum);
|
|
}
|
|
RETURN_TOKEN_WITH_VAL(T_LNUMBER);
|
|
}
|
|
|
|
<ST_IN_SCRIPTING>{HNUM} {
|
|
/* The +/- 2 skips "0x" */
|
|
int len = yyleng - 2, contains_underscores;
|
|
char *end, *hex = yytext + 2;
|
|
|
|
/* Skip any leading 0s */
|
|
while (*hex == '0' || *hex == '_') {
|
|
++hex;
|
|
--len;
|
|
}
|
|
|
|
contains_underscores = (memchr(hex, '_', len) != NULL);
|
|
|
|
if (contains_underscores) {
|
|
hex = estrndup(hex, len);
|
|
strip_underscores(hex, &len);
|
|
}
|
|
|
|
if (len < SIZEOF_ZEND_LONG * 2 || (len == SIZEOF_ZEND_LONG * 2 && *hex <= '7')) {
|
|
if (len == 0) {
|
|
ZVAL_LONG(zendlval, 0);
|
|
} else {
|
|
errno = 0;
|
|
ZVAL_LONG(zendlval, ZEND_STRTOL(hex, &end, 16));
|
|
ZEND_ASSERT(!errno && end == hex + len);
|
|
}
|
|
if (contains_underscores) {
|
|
efree(hex);
|
|
}
|
|
RETURN_TOKEN_WITH_VAL(T_LNUMBER);
|
|
} else {
|
|
ZVAL_DOUBLE(zendlval, zend_hex_strtod(hex, (const char **)&end));
|
|
/* errno isn't checked since we allow HUGE_VAL/INF overflow */
|
|
ZEND_ASSERT(end == hex + len);
|
|
if (contains_underscores) {
|
|
efree(hex);
|
|
}
|
|
RETURN_TOKEN_WITH_VAL(T_DNUMBER);
|
|
}
|
|
}
|
|
|
|
<ST_VAR_OFFSET>[0]|([1-9][0-9]*) { /* Offset could be treated as a long */
|
|
if (yyleng < MAX_LENGTH_OF_LONG - 1 || (yyleng == MAX_LENGTH_OF_LONG - 1 && strcmp(yytext, long_min_digits) < 0)) {
|
|
char *end;
|
|
errno = 0;
|
|
ZVAL_LONG(zendlval, ZEND_STRTOL(yytext, &end, 10));
|
|
if (errno == ERANGE) {
|
|
goto string;
|
|
}
|
|
ZEND_ASSERT(end == yytext + yyleng);
|
|
} else {
|
|
string:
|
|
ZVAL_STRINGL(zendlval, yytext, yyleng);
|
|
}
|
|
RETURN_TOKEN_WITH_VAL(T_NUM_STRING);
|
|
}
|
|
|
|
<ST_VAR_OFFSET>{LNUM}|{HNUM}|{BNUM} { /* Offset must be treated as a string */
|
|
if (yyleng == 1) {
|
|
ZVAL_INTERNED_STR(zendlval, ZSTR_CHAR((zend_uchar)*(yytext)));
|
|
} else {
|
|
ZVAL_STRINGL(zendlval, yytext, yyleng);
|
|
}
|
|
RETURN_TOKEN_WITH_VAL(T_NUM_STRING);
|
|
}
|
|
|
|
<ST_IN_SCRIPTING>{DNUM}|{EXPONENT_DNUM} {
|
|
const char *end;
|
|
int len = yyleng, contains_underscores;
|
|
char *dnum = yytext;
|
|
|
|
contains_underscores = (memchr(dnum, '_', len) != NULL);
|
|
|
|
if (contains_underscores) {
|
|
dnum = estrndup(dnum, len);
|
|
strip_underscores(dnum, &len);
|
|
}
|
|
|
|
ZVAL_DOUBLE(zendlval, zend_strtod(dnum, &end));
|
|
/* errno isn't checked since we allow HUGE_VAL/INF overflow */
|
|
ZEND_ASSERT(end == dnum + len);
|
|
if (contains_underscores) {
|
|
efree(dnum);
|
|
}
|
|
RETURN_TOKEN_WITH_VAL(T_DNUMBER);
|
|
}
|
|
|
|
<ST_IN_SCRIPTING>"__CLASS__" {
|
|
RETURN_TOKEN(T_CLASS_C);
|
|
}
|
|
|
|
<ST_IN_SCRIPTING>"__TRAIT__" {
|
|
RETURN_TOKEN(T_TRAIT_C);
|
|
}
|
|
|
|
<ST_IN_SCRIPTING>"__FUNCTION__" {
|
|
RETURN_TOKEN(T_FUNC_C);
|
|
}
|
|
|
|
<ST_IN_SCRIPTING>"__METHOD__" {
|
|
RETURN_TOKEN(T_METHOD_C);
|
|
}
|
|
|
|
<ST_IN_SCRIPTING>"__LINE__" {
|
|
RETURN_TOKEN(T_LINE);
|
|
}
|
|
|
|
<ST_IN_SCRIPTING>"__FILE__" {
|
|
RETURN_TOKEN(T_FILE);
|
|
}
|
|
|
|
<ST_IN_SCRIPTING>"__DIR__" {
|
|
RETURN_TOKEN(T_DIR);
|
|
}
|
|
|
|
<ST_IN_SCRIPTING>"__NAMESPACE__" {
|
|
RETURN_TOKEN(T_NS_C);
|
|
}
|
|
|
|
|
|
<INITIAL>"<?=" {
|
|
BEGIN(ST_IN_SCRIPTING);
|
|
if (PARSER_MODE()) {
|
|
RETURN_TOKEN(T_ECHO);
|
|
}
|
|
RETURN_TOKEN(T_OPEN_TAG_WITH_ECHO);
|
|
}
|
|
|
|
|
|
<INITIAL>"<?php"([ \t]|{NEWLINE}) {
|
|
HANDLE_NEWLINE(yytext[yyleng-1]);
|
|
BEGIN(ST_IN_SCRIPTING);
|
|
if (PARSER_MODE()) {
|
|
SKIP_TOKEN(T_OPEN_TAG);
|
|
}
|
|
RETURN_TOKEN(T_OPEN_TAG);
|
|
}
|
|
|
|
|
|
<INITIAL>"<?" {
|
|
if (CG(short_tags)) {
|
|
BEGIN(ST_IN_SCRIPTING);
|
|
if (PARSER_MODE()) {
|
|
SKIP_TOKEN(T_OPEN_TAG);
|
|
}
|
|
RETURN_TOKEN(T_OPEN_TAG);
|
|
} else {
|
|
goto inline_char_handler;
|
|
}
|
|
}
|
|
|
|
<INITIAL>{ANY_CHAR} {
|
|
if (YYCURSOR > YYLIMIT) {
|
|
RETURN_TOKEN(END);
|
|
}
|
|
|
|
inline_char_handler:
|
|
|
|
while (1) {
|
|
YYCTYPE *ptr = memchr(YYCURSOR, '<', YYLIMIT - YYCURSOR);
|
|
|
|
YYCURSOR = ptr ? ptr + 1 : YYLIMIT;
|
|
|
|
if (YYCURSOR >= YYLIMIT) {
|
|
break;
|
|
}
|
|
|
|
if (*YYCURSOR == '?') {
|
|
if (CG(short_tags) || !strncasecmp((char*)YYCURSOR + 1, "php", 3) || (*(YYCURSOR + 1) == '=')) { /* Assume [ \t\n\r] follows "php" */
|
|
|
|
YYCURSOR--;
|
|
break;
|
|
}
|
|
}
|
|
}
|
|
|
|
yyleng = YYCURSOR - SCNG(yy_text);
|
|
|
|
if (SCNG(output_filter)) {
|
|
size_t readsize;
|
|
char *s = NULL;
|
|
size_t sz = 0;
|
|
// TODO: avoid reallocation ???
|
|
readsize = SCNG(output_filter)((unsigned char **)&s, &sz, (unsigned char *)yytext, (size_t)yyleng);
|
|
ZVAL_STRINGL(zendlval, s, sz);
|
|
efree(s);
|
|
if (readsize < yyleng) {
|
|
yyless(readsize);
|
|
}
|
|
} else if (yyleng == 1) {
|
|
ZVAL_INTERNED_STR(zendlval, ZSTR_CHAR((zend_uchar)*yytext));
|
|
} else {
|
|
ZVAL_STRINGL(zendlval, yytext, yyleng);
|
|
}
|
|
HANDLE_NEWLINES(yytext, yyleng);
|
|
RETURN_TOKEN_WITH_VAL(T_INLINE_HTML);
|
|
}
|
|
|
|
|
|
/* Make sure a label character follows "->", otherwise there is no property
|
|
* and "->" will be taken literally
|
|
*/
|
|
<ST_DOUBLE_QUOTES,ST_HEREDOC,ST_BACKQUOTE>"$"{LABEL}"->"[a-zA-Z_\x80-\xff] {
|
|
yyless(yyleng - 3);
|
|
yy_push_state(ST_LOOKING_FOR_PROPERTY);
|
|
RETURN_TOKEN_WITH_STR(T_VARIABLE, 1);
|
|
}
|
|
|
|
/* A [ always designates a variable offset, regardless of what follows
|
|
*/
|
|
<ST_DOUBLE_QUOTES,ST_HEREDOC,ST_BACKQUOTE>"$"{LABEL}"[" {
|
|
yyless(yyleng - 1);
|
|
yy_push_state(ST_VAR_OFFSET);
|
|
RETURN_TOKEN_WITH_STR(T_VARIABLE, 1);
|
|
}
|
|
|
|
<ST_IN_SCRIPTING,ST_DOUBLE_QUOTES,ST_HEREDOC,ST_BACKQUOTE,ST_VAR_OFFSET>"$"{LABEL} {
|
|
RETURN_TOKEN_WITH_STR(T_VARIABLE, 1);
|
|
}
|
|
|
|
<ST_VAR_OFFSET>"]" {
|
|
yy_pop_state();
|
|
RETURN_TOKEN(']');
|
|
}
|
|
|
|
<ST_VAR_OFFSET>{TOKENS}|[{}"`] {
|
|
/* Only '[' or '-' can be valid, but returning other tokens will allow a more explicit parse error */
|
|
RETURN_TOKEN(yytext[0]);
|
|
}
|
|
|
|
<ST_VAR_OFFSET>[ \n\r\t\\'#] {
|
|
/* Invalid rule to return a more explicit parse error with proper line number */
|
|
yyless(0);
|
|
yy_pop_state();
|
|
ZVAL_NULL(zendlval);
|
|
RETURN_TOKEN_WITH_VAL(T_ENCAPSED_AND_WHITESPACE);
|
|
}
|
|
|
|
<ST_IN_SCRIPTING,ST_VAR_OFFSET>{LABEL} {
|
|
RETURN_TOKEN_WITH_STR(T_STRING, 0);
|
|
}
|
|
|
|
|
|
<ST_IN_SCRIPTING>"#"|"//" {
|
|
while (YYCURSOR < YYLIMIT) {
|
|
switch (*YYCURSOR++) {
|
|
case '\r':
|
|
if (*YYCURSOR == '\n') {
|
|
YYCURSOR++;
|
|
}
|
|
/* fall through */
|
|
case '\n':
|
|
CG(zend_lineno)++;
|
|
break;
|
|
case '?':
|
|
if (*YYCURSOR == '>') {
|
|
YYCURSOR--;
|
|
break;
|
|
}
|
|
/* fall through */
|
|
default:
|
|
continue;
|
|
}
|
|
|
|
break;
|
|
}
|
|
|
|
yyleng = YYCURSOR - SCNG(yy_text);
|
|
|
|
if (PARSER_MODE()) {
|
|
SKIP_TOKEN(T_COMMENT);
|
|
}
|
|
RETURN_TOKEN(T_COMMENT);
|
|
}
|
|
|
|
<ST_IN_SCRIPTING>"/*"|"/**"{WHITESPACE} {
|
|
int doc_com;
|
|
|
|
if (yyleng > 2) {
|
|
doc_com = 1;
|
|
RESET_DOC_COMMENT();
|
|
} else {
|
|
doc_com = 0;
|
|
}
|
|
|
|
while (YYCURSOR < YYLIMIT) {
|
|
if (*YYCURSOR++ == '*' && *YYCURSOR == '/') {
|
|
break;
|
|
}
|
|
}
|
|
|
|
if (YYCURSOR < YYLIMIT) {
|
|
YYCURSOR++;
|
|
} else {
|
|
zend_error(E_COMPILE_WARNING, "Unterminated comment starting line %d", CG(zend_lineno));
|
|
}
|
|
|
|
yyleng = YYCURSOR - SCNG(yy_text);
|
|
HANDLE_NEWLINES(yytext, yyleng);
|
|
|
|
if (doc_com) {
|
|
CG(doc_comment) = zend_string_init(yytext, yyleng, 0);
|
|
if (PARSER_MODE()) {
|
|
SKIP_TOKEN(T_DOC_COMMENT);
|
|
}
|
|
RETURN_TOKEN(T_DOC_COMMENT);
|
|
}
|
|
|
|
if (PARSER_MODE()) {
|
|
SKIP_TOKEN(T_COMMENT);
|
|
}
|
|
RETURN_TOKEN(T_COMMENT);
|
|
}
|
|
|
|
<ST_IN_SCRIPTING>"?>"{NEWLINE}? {
|
|
BEGIN(INITIAL);
|
|
if (yytext[yyleng-1] != '>') {
|
|
CG(increment_lineno) = 1;
|
|
}
|
|
if (PARSER_MODE()) {
|
|
RETURN_TOKEN(';'); /* implicit ';' at php-end tag */
|
|
}
|
|
RETURN_TOKEN(T_CLOSE_TAG);
|
|
}
|
|
|
|
|
|
<ST_IN_SCRIPTING>b?['] {
|
|
register char *s, *t;
|
|
char *end;
|
|
int bprefix = (yytext[0] != '\'') ? 1 : 0;
|
|
|
|
while (1) {
|
|
if (YYCURSOR < YYLIMIT) {
|
|
if (*YYCURSOR == '\'') {
|
|
YYCURSOR++;
|
|
yyleng = YYCURSOR - SCNG(yy_text);
|
|
|
|
break;
|
|
} else if (*YYCURSOR++ == '\\' && YYCURSOR < YYLIMIT) {
|
|
YYCURSOR++;
|
|
}
|
|
} else {
|
|
yyleng = YYLIMIT - SCNG(yy_text);
|
|
|
|
/* Unclosed single quotes; treat similar to double quotes, but without a separate token
|
|
* for ' (unrecognized by parser), instead of old flex fallback to "Unexpected character..."
|
|
* rule, which continued in ST_IN_SCRIPTING state after the quote */
|
|
ZVAL_NULL(zendlval);
|
|
RETURN_TOKEN_WITH_VAL(T_ENCAPSED_AND_WHITESPACE);
|
|
}
|
|
}
|
|
|
|
if (yyleng-bprefix-2 <= 1) {
|
|
if (yyleng-bprefix-2 < 1) {
|
|
ZVAL_EMPTY_STRING(zendlval);
|
|
} else {
|
|
zend_uchar c = (zend_uchar)*(yytext+bprefix+1);
|
|
if (c == '\n' || c == '\r') {
|
|
CG(zend_lineno)++;
|
|
}
|
|
ZVAL_INTERNED_STR(zendlval, ZSTR_CHAR(c));
|
|
}
|
|
goto skip_escape_conversion;
|
|
}
|
|
ZVAL_STRINGL(zendlval, yytext+bprefix+1, yyleng-bprefix-2);
|
|
|
|
/* convert escape sequences */
|
|
s = Z_STRVAL_P(zendlval);
|
|
end = s+Z_STRLEN_P(zendlval);
|
|
while (1) {
|
|
if (UNEXPECTED(*s=='\\')) {
|
|
break;
|
|
}
|
|
if (*s == '\n' || (*s == '\r' && (*(s+1) != '\n'))) {
|
|
CG(zend_lineno)++;
|
|
}
|
|
s++;
|
|
if (s == end) {
|
|
goto skip_escape_conversion;
|
|
}
|
|
}
|
|
|
|
t = s;
|
|
while (s<end) {
|
|
if (*s=='\\') {
|
|
s++;
|
|
if (*s == '\\' || *s == '\'') {
|
|
*t++ = *s;
|
|
} else {
|
|
*t++ = '\\';
|
|
*t++ = *s;
|
|
}
|
|
} else {
|
|
*t++ = *s;
|
|
}
|
|
if (*s == '\n' || (*s == '\r' && (*(s+1) != '\n'))) {
|
|
CG(zend_lineno)++;
|
|
}
|
|
s++;
|
|
}
|
|
*t = 0;
|
|
Z_STRLEN_P(zendlval) = t - Z_STRVAL_P(zendlval);
|
|
|
|
skip_escape_conversion:
|
|
if (SCNG(output_filter)) {
|
|
size_t sz = 0;
|
|
char *str = NULL;
|
|
zend_string *new_str;
|
|
s = Z_STRVAL_P(zendlval);
|
|
// TODO: avoid reallocation ???
|
|
SCNG(output_filter)((unsigned char **)&str, &sz, (unsigned char *)s, (size_t)Z_STRLEN_P(zendlval));
|
|
new_str = zend_string_init(str, sz, 0);
|
|
if (str != s) {
|
|
efree(str);
|
|
}
|
|
zend_string_release_ex(Z_STR_P(zendlval), 0);
|
|
ZVAL_STR(zendlval, new_str);
|
|
}
|
|
RETURN_TOKEN_WITH_VAL(T_CONSTANT_ENCAPSED_STRING);
|
|
}
|
|
|
|
|
|
<ST_IN_SCRIPTING>b?["] {
|
|
int bprefix = (yytext[0] != '"') ? 1 : 0;
|
|
|
|
while (YYCURSOR < YYLIMIT) {
|
|
switch (*YYCURSOR++) {
|
|
case '"':
|
|
yyleng = YYCURSOR - SCNG(yy_text);
|
|
if (EXPECTED(zend_scan_escape_string(zendlval, yytext+bprefix+1, yyleng-bprefix-2, '"') == SUCCESS)
|
|
|| !PARSER_MODE()) {
|
|
RETURN_TOKEN_WITH_VAL(T_CONSTANT_ENCAPSED_STRING);
|
|
} else {
|
|
RETURN_TOKEN(T_ERROR);
|
|
}
|
|
case '$':
|
|
if (IS_LABEL_START(*YYCURSOR) || *YYCURSOR == '{') {
|
|
break;
|
|
}
|
|
continue;
|
|
case '{':
|
|
if (*YYCURSOR == '$') {
|
|
break;
|
|
}
|
|
continue;
|
|
case '\\':
|
|
if (YYCURSOR < YYLIMIT) {
|
|
YYCURSOR++;
|
|
}
|
|
/* fall through */
|
|
default:
|
|
continue;
|
|
}
|
|
|
|
YYCURSOR--;
|
|
break;
|
|
}
|
|
|
|
/* Remember how much was scanned to save rescanning */
|
|
SET_DOUBLE_QUOTES_SCANNED_LENGTH(YYCURSOR - SCNG(yy_text) - yyleng);
|
|
|
|
YYCURSOR = SCNG(yy_text) + yyleng;
|
|
|
|
BEGIN(ST_DOUBLE_QUOTES);
|
|
RETURN_TOKEN('"');
|
|
}
|
|
|
|
|
|
<ST_IN_SCRIPTING>b?"<<<"{TABS_AND_SPACES}({LABEL}|([']{LABEL}['])|(["]{LABEL}["])){NEWLINE} {
|
|
char *s;
|
|
unsigned char *saved_cursor;
|
|
int bprefix = (yytext[0] != '<') ? 1 : 0, spacing = 0, indentation = 0;
|
|
zend_heredoc_label *heredoc_label = emalloc(sizeof(zend_heredoc_label));
|
|
zend_bool is_heredoc = 1;
|
|
|
|
CG(zend_lineno)++;
|
|
heredoc_label->length = yyleng-bprefix-3-1-(yytext[yyleng-2]=='\r'?1:0);
|
|
s = yytext+bprefix+3;
|
|
while ((*s == ' ') || (*s == '\t')) {
|
|
s++;
|
|
heredoc_label->length--;
|
|
}
|
|
|
|
if (*s == '\'') {
|
|
s++;
|
|
heredoc_label->length -= 2;
|
|
is_heredoc = 0;
|
|
|
|
BEGIN(ST_NOWDOC);
|
|
} else {
|
|
if (*s == '"') {
|
|
s++;
|
|
heredoc_label->length -= 2;
|
|
}
|
|
|
|
BEGIN(ST_HEREDOC);
|
|
}
|
|
|
|
heredoc_label->label = estrndup(s, heredoc_label->length);
|
|
heredoc_label->indentation = 0;
|
|
saved_cursor = YYCURSOR;
|
|
|
|
zend_ptr_stack_push(&SCNG(heredoc_label_stack), (void *) heredoc_label);
|
|
|
|
while (YYCURSOR < YYLIMIT && (*YYCURSOR == ' ' || *YYCURSOR == '\t')) {
|
|
if (*YYCURSOR == '\t') {
|
|
spacing |= HEREDOC_USING_TABS;
|
|
} else {
|
|
spacing |= HEREDOC_USING_SPACES;
|
|
}
|
|
++YYCURSOR;
|
|
++indentation;
|
|
}
|
|
|
|
if (YYCURSOR == YYLIMIT) {
|
|
YYCURSOR = saved_cursor;
|
|
RETURN_TOKEN(T_START_HEREDOC);
|
|
}
|
|
|
|
/* Check for ending label on the next line */
|
|
if (heredoc_label->length < YYLIMIT - YYCURSOR && !memcmp(YYCURSOR, s, heredoc_label->length)) {
|
|
if (!IS_LABEL_START(YYCURSOR[heredoc_label->length])) {
|
|
if (spacing == (HEREDOC_USING_SPACES | HEREDOC_USING_TABS)) {
|
|
zend_throw_exception(zend_ce_parse_error, "Invalid indentation - tabs and spaces cannot be mixed", 0);
|
|
}
|
|
|
|
YYCURSOR = saved_cursor;
|
|
heredoc_label->indentation = indentation;
|
|
|
|
BEGIN(ST_END_HEREDOC);
|
|
RETURN_TOKEN(T_START_HEREDOC);
|
|
}
|
|
}
|
|
|
|
YYCURSOR = saved_cursor;
|
|
|
|
if (is_heredoc && !SCNG(heredoc_scan_ahead)) {
|
|
zend_lex_state current_state;
|
|
int heredoc_nesting_level = 1;
|
|
int first_token = 0;
|
|
|
|
zend_save_lexical_state(¤t_state);
|
|
|
|
SCNG(heredoc_scan_ahead) = 1;
|
|
SCNG(heredoc_indentation) = 0;
|
|
SCNG(heredoc_indentation_uses_spaces) = 0;
|
|
LANG_SCNG(on_event) = NULL;
|
|
|
|
zend_ptr_stack_reverse_apply(¤t_state.heredoc_label_stack, copy_heredoc_label_stack);
|
|
|
|
zend_exception_save();
|
|
while (heredoc_nesting_level) {
|
|
zval zv;
|
|
int retval;
|
|
|
|
ZVAL_UNDEF(&zv);
|
|
retval = lex_scan(&zv, NULL);
|
|
zval_ptr_dtor_nogc(&zv);
|
|
|
|
if (EG(exception)) {
|
|
zend_clear_exception();
|
|
break;
|
|
}
|
|
|
|
if (!first_token) {
|
|
first_token = retval;
|
|
}
|
|
|
|
switch (retval) {
|
|
case T_START_HEREDOC:
|
|
++heredoc_nesting_level;
|
|
break;
|
|
case T_END_HEREDOC:
|
|
--heredoc_nesting_level;
|
|
break;
|
|
case END:
|
|
heredoc_nesting_level = 0;
|
|
}
|
|
}
|
|
zend_exception_restore();
|
|
|
|
if (
|
|
(first_token == T_VARIABLE
|
|
|| first_token == T_DOLLAR_OPEN_CURLY_BRACES
|
|
|| first_token == T_CURLY_OPEN
|
|
) && SCNG(heredoc_indentation)) {
|
|
zend_throw_exception_ex(zend_ce_parse_error, 0, "Invalid body indentation level (expecting an indentation level of at least %d)", SCNG(heredoc_indentation));
|
|
}
|
|
|
|
heredoc_label->indentation = SCNG(heredoc_indentation);
|
|
heredoc_label->indentation_uses_spaces = SCNG(heredoc_indentation_uses_spaces);
|
|
|
|
zend_restore_lexical_state(¤t_state);
|
|
SCNG(heredoc_scan_ahead) = 0;
|
|
CG(increment_lineno) = 0;
|
|
}
|
|
|
|
RETURN_TOKEN(T_START_HEREDOC);
|
|
}
|
|
|
|
|
|
<ST_IN_SCRIPTING>[`] {
|
|
BEGIN(ST_BACKQUOTE);
|
|
RETURN_TOKEN('`');
|
|
}
|
|
|
|
|
|
<ST_END_HEREDOC>{ANY_CHAR} {
|
|
zend_heredoc_label *heredoc_label = zend_ptr_stack_pop(&SCNG(heredoc_label_stack));
|
|
|
|
yyleng = heredoc_label->indentation + heredoc_label->length;
|
|
YYCURSOR += yyleng - 1;
|
|
|
|
heredoc_label_dtor(heredoc_label);
|
|
efree(heredoc_label);
|
|
|
|
BEGIN(ST_IN_SCRIPTING);
|
|
RETURN_TOKEN(T_END_HEREDOC);
|
|
}
|
|
|
|
|
|
<ST_DOUBLE_QUOTES,ST_BACKQUOTE,ST_HEREDOC>"{$" {
|
|
yy_push_state(ST_IN_SCRIPTING);
|
|
yyless(1);
|
|
RETURN_TOKEN(T_CURLY_OPEN);
|
|
}
|
|
|
|
|
|
<ST_DOUBLE_QUOTES>["] {
|
|
BEGIN(ST_IN_SCRIPTING);
|
|
RETURN_TOKEN('"');
|
|
}
|
|
|
|
<ST_BACKQUOTE>[`] {
|
|
BEGIN(ST_IN_SCRIPTING);
|
|
RETURN_TOKEN('`');
|
|
}
|
|
|
|
|
|
<ST_DOUBLE_QUOTES>{ANY_CHAR} {
|
|
if (GET_DOUBLE_QUOTES_SCANNED_LENGTH()) {
|
|
YYCURSOR += GET_DOUBLE_QUOTES_SCANNED_LENGTH() - 1;
|
|
SET_DOUBLE_QUOTES_SCANNED_LENGTH(0);
|
|
|
|
goto double_quotes_scan_done;
|
|
}
|
|
|
|
if (YYCURSOR > YYLIMIT) {
|
|
RETURN_TOKEN(END);
|
|
}
|
|
if (yytext[0] == '\\' && YYCURSOR < YYLIMIT) {
|
|
YYCURSOR++;
|
|
}
|
|
|
|
while (YYCURSOR < YYLIMIT) {
|
|
switch (*YYCURSOR++) {
|
|
case '"':
|
|
break;
|
|
case '$':
|
|
if (IS_LABEL_START(*YYCURSOR) || *YYCURSOR == '{') {
|
|
break;
|
|
}
|
|
continue;
|
|
case '{':
|
|
if (*YYCURSOR == '$') {
|
|
break;
|
|
}
|
|
continue;
|
|
case '\\':
|
|
if (YYCURSOR < YYLIMIT) {
|
|
YYCURSOR++;
|
|
}
|
|
/* fall through */
|
|
default:
|
|
continue;
|
|
}
|
|
|
|
YYCURSOR--;
|
|
break;
|
|
}
|
|
|
|
double_quotes_scan_done:
|
|
yyleng = YYCURSOR - SCNG(yy_text);
|
|
|
|
if (EXPECTED(zend_scan_escape_string(zendlval, yytext, yyleng, '"') == SUCCESS)
|
|
|| !PARSER_MODE()) {
|
|
RETURN_TOKEN_WITH_VAL(T_ENCAPSED_AND_WHITESPACE);
|
|
} else {
|
|
RETURN_TOKEN(T_ERROR);
|
|
}
|
|
}
|
|
|
|
|
|
<ST_BACKQUOTE>{ANY_CHAR} {
|
|
if (YYCURSOR > YYLIMIT) {
|
|
RETURN_TOKEN(END);
|
|
}
|
|
if (yytext[0] == '\\' && YYCURSOR < YYLIMIT) {
|
|
YYCURSOR++;
|
|
}
|
|
|
|
while (YYCURSOR < YYLIMIT) {
|
|
switch (*YYCURSOR++) {
|
|
case '`':
|
|
break;
|
|
case '$':
|
|
if (IS_LABEL_START(*YYCURSOR) || *YYCURSOR == '{') {
|
|
break;
|
|
}
|
|
continue;
|
|
case '{':
|
|
if (*YYCURSOR == '$') {
|
|
break;
|
|
}
|
|
continue;
|
|
case '\\':
|
|
if (YYCURSOR < YYLIMIT) {
|
|
YYCURSOR++;
|
|
}
|
|
/* fall through */
|
|
default:
|
|
continue;
|
|
}
|
|
|
|
YYCURSOR--;
|
|
break;
|
|
}
|
|
|
|
yyleng = YYCURSOR - SCNG(yy_text);
|
|
|
|
if (EXPECTED(zend_scan_escape_string(zendlval, yytext, yyleng, '`') == SUCCESS)
|
|
|| !PARSER_MODE()) {
|
|
RETURN_TOKEN_WITH_VAL(T_ENCAPSED_AND_WHITESPACE);
|
|
} else {
|
|
RETURN_TOKEN(T_ERROR);
|
|
}
|
|
}
|
|
|
|
|
|
<ST_HEREDOC>{ANY_CHAR} {
|
|
zend_heredoc_label *heredoc_label = zend_ptr_stack_top(&SCNG(heredoc_label_stack));
|
|
int newline = 0, indentation = 0, spacing = 0;
|
|
|
|
if (YYCURSOR > YYLIMIT) {
|
|
RETURN_TOKEN(END);
|
|
}
|
|
|
|
YYCURSOR--;
|
|
|
|
while (YYCURSOR < YYLIMIT) {
|
|
switch (*YYCURSOR++) {
|
|
case '\r':
|
|
if (*YYCURSOR == '\n') {
|
|
YYCURSOR++;
|
|
}
|
|
/* fall through */
|
|
case '\n':
|
|
indentation = spacing = 0;
|
|
|
|
while (YYCURSOR < YYLIMIT && (*YYCURSOR == ' ' || *YYCURSOR == '\t')) {
|
|
if (*YYCURSOR == '\t') {
|
|
spacing |= HEREDOC_USING_TABS;
|
|
} else {
|
|
spacing |= HEREDOC_USING_SPACES;
|
|
}
|
|
++YYCURSOR;
|
|
++indentation;
|
|
}
|
|
|
|
if (YYCURSOR == YYLIMIT) {
|
|
yyleng = YYCURSOR - SCNG(yy_text);
|
|
HANDLE_NEWLINES(yytext, yyleng);
|
|
ZVAL_NULL(zendlval);
|
|
RETURN_TOKEN_WITH_VAL(T_ENCAPSED_AND_WHITESPACE);
|
|
}
|
|
|
|
/* Check for ending label on the next line */
|
|
if (IS_LABEL_START(*YYCURSOR) && heredoc_label->length < YYLIMIT - YYCURSOR && !memcmp(YYCURSOR, heredoc_label->label, heredoc_label->length)) {
|
|
if (IS_LABEL_START(YYCURSOR[heredoc_label->length])) {
|
|
continue;
|
|
}
|
|
|
|
if (spacing == (HEREDOC_USING_SPACES | HEREDOC_USING_TABS)) {
|
|
zend_throw_exception(zend_ce_parse_error, "Invalid indentation - tabs and spaces cannot be mixed", 0);
|
|
}
|
|
|
|
/* newline before label will be subtracted from returned text, but
|
|
* yyleng/yytext will include it, for zend_highlight/strip, tokenizer, etc. */
|
|
if (YYCURSOR[-indentation - 2] == '\r' && YYCURSOR[-indentation - 1] == '\n') {
|
|
newline = 2; /* Windows newline */
|
|
} else {
|
|
newline = 1;
|
|
}
|
|
|
|
CG(increment_lineno) = 1; /* For newline before label */
|
|
|
|
if (SCNG(heredoc_scan_ahead)) {
|
|
SCNG(heredoc_indentation) = indentation;
|
|
SCNG(heredoc_indentation_uses_spaces) = (spacing == HEREDOC_USING_SPACES);
|
|
} else {
|
|
YYCURSOR -= indentation;
|
|
}
|
|
|
|
BEGIN(ST_END_HEREDOC);
|
|
|
|
goto heredoc_scan_done;
|
|
}
|
|
continue;
|
|
case '$':
|
|
if (IS_LABEL_START(*YYCURSOR) || *YYCURSOR == '{') {
|
|
break;
|
|
}
|
|
continue;
|
|
case '{':
|
|
if (*YYCURSOR == '$') {
|
|
break;
|
|
}
|
|
continue;
|
|
case '\\':
|
|
if (YYCURSOR < YYLIMIT && *YYCURSOR != '\n' && *YYCURSOR != '\r') {
|
|
YYCURSOR++;
|
|
}
|
|
/* fall through */
|
|
default:
|
|
continue;
|
|
}
|
|
|
|
YYCURSOR--;
|
|
break;
|
|
}
|
|
|
|
heredoc_scan_done:
|
|
|
|
yyleng = YYCURSOR - SCNG(yy_text);
|
|
ZVAL_STRINGL(zendlval, yytext, yyleng - newline);
|
|
|
|
if (!SCNG(heredoc_scan_ahead) && !EG(exception) && PARSER_MODE()) {
|
|
zend_bool newline_at_start = *(yytext - 1) == '\n' || *(yytext - 1) == '\r';
|
|
zend_string *copy = Z_STR_P(zendlval);
|
|
|
|
if (!strip_multiline_string_indentation(
|
|
zendlval, heredoc_label->indentation, heredoc_label->indentation_uses_spaces,
|
|
newline_at_start, newline != 0)) {
|
|
RETURN_TOKEN(T_ERROR);
|
|
}
|
|
|
|
if (UNEXPECTED(zend_scan_escape_string(zendlval, ZSTR_VAL(copy), ZSTR_LEN(copy), 0) != SUCCESS)) {
|
|
zend_string_efree(copy);
|
|
RETURN_TOKEN(T_ERROR);
|
|
}
|
|
|
|
zend_string_efree(copy);
|
|
} else {
|
|
HANDLE_NEWLINES(yytext, yyleng - newline);
|
|
}
|
|
|
|
RETURN_TOKEN_WITH_VAL(T_ENCAPSED_AND_WHITESPACE);
|
|
}
|
|
|
|
|
|
<ST_NOWDOC>{ANY_CHAR} {
|
|
zend_heredoc_label *heredoc_label = zend_ptr_stack_top(&SCNG(heredoc_label_stack));
|
|
int newline = 0, indentation = 0, spacing = -1;
|
|
|
|
if (YYCURSOR > YYLIMIT) {
|
|
RETURN_TOKEN(END);
|
|
}
|
|
|
|
YYCURSOR--;
|
|
|
|
while (YYCURSOR < YYLIMIT) {
|
|
switch (*YYCURSOR++) {
|
|
case '\r':
|
|
if (*YYCURSOR == '\n') {
|
|
YYCURSOR++;
|
|
}
|
|
/* fall through */
|
|
case '\n':
|
|
indentation = spacing = 0;
|
|
|
|
while (YYCURSOR < YYLIMIT && (*YYCURSOR == ' ' || *YYCURSOR == '\t')) {
|
|
if (*YYCURSOR == '\t') {
|
|
spacing |= HEREDOC_USING_TABS;
|
|
} else {
|
|
spacing |= HEREDOC_USING_SPACES;
|
|
}
|
|
++YYCURSOR;
|
|
++indentation;
|
|
}
|
|
|
|
if (YYCURSOR == YYLIMIT) {
|
|
yyleng = YYCURSOR - SCNG(yy_text);
|
|
HANDLE_NEWLINES(yytext, yyleng);
|
|
ZVAL_NULL(zendlval);
|
|
RETURN_TOKEN_WITH_VAL(T_ENCAPSED_AND_WHITESPACE);
|
|
}
|
|
|
|
/* Check for ending label on the next line */
|
|
if (IS_LABEL_START(*YYCURSOR) && heredoc_label->length < YYLIMIT - YYCURSOR && !memcmp(YYCURSOR, heredoc_label->label, heredoc_label->length)) {
|
|
if (IS_LABEL_START(YYCURSOR[heredoc_label->length])) {
|
|
continue;
|
|
}
|
|
|
|
if (spacing == (HEREDOC_USING_SPACES | HEREDOC_USING_TABS)) {
|
|
zend_throw_exception(zend_ce_parse_error, "Invalid indentation - tabs and spaces cannot be mixed", 0);
|
|
}
|
|
|
|
/* newline before label will be subtracted from returned text, but
|
|
* yyleng/yytext will include it, for zend_highlight/strip, tokenizer, etc. */
|
|
if (YYCURSOR[-indentation - 2] == '\r' && YYCURSOR[-indentation - 1] == '\n') {
|
|
newline = 2; /* Windows newline */
|
|
} else {
|
|
newline = 1;
|
|
}
|
|
|
|
CG(increment_lineno) = 1; /* For newline before label */
|
|
|
|
YYCURSOR -= indentation;
|
|
heredoc_label->indentation = indentation;
|
|
|
|
BEGIN(ST_END_HEREDOC);
|
|
|
|
goto nowdoc_scan_done;
|
|
}
|
|
/* fall through */
|
|
default:
|
|
continue;
|
|
}
|
|
}
|
|
|
|
nowdoc_scan_done:
|
|
yyleng = YYCURSOR - SCNG(yy_text);
|
|
ZVAL_STRINGL(zendlval, yytext, yyleng - newline);
|
|
|
|
if (!EG(exception) && spacing != -1 && PARSER_MODE()) {
|
|
zend_bool newline_at_start = *(yytext - 1) == '\n' || *(yytext - 1) == '\r';
|
|
if (!strip_multiline_string_indentation(
|
|
zendlval, indentation, spacing == HEREDOC_USING_SPACES,
|
|
newline_at_start, newline != 0)) {
|
|
RETURN_TOKEN(T_ERROR);
|
|
}
|
|
}
|
|
|
|
HANDLE_NEWLINES(yytext, yyleng - newline);
|
|
RETURN_TOKEN_WITH_VAL(T_ENCAPSED_AND_WHITESPACE);
|
|
}
|
|
|
|
|
|
<ST_IN_SCRIPTING,ST_VAR_OFFSET>{ANY_CHAR} {
|
|
if (YYCURSOR > YYLIMIT) {
|
|
RETURN_TOKEN(END);
|
|
}
|
|
|
|
zend_error(E_COMPILE_WARNING,"Unexpected character in input: '%c' (ASCII=%d) state=%d", yytext[0], yytext[0], YYSTATE);
|
|
goto restart;
|
|
}
|
|
|
|
*/
|
|
|
|
emit_token_with_str:
|
|
zend_copy_value(zendlval, (yytext + offset), (yyleng - offset));
|
|
|
|
emit_token_with_val:
|
|
if (PARSER_MODE()) {
|
|
ZEND_ASSERT(Z_TYPE_P(zendlval) != IS_UNDEF);
|
|
elem->ast = zend_ast_create_zval_with_lineno(zendlval, start_line);
|
|
}
|
|
|
|
emit_token:
|
|
if (SCNG(on_event)) {
|
|
SCNG(on_event)(ON_TOKEN, token, start_line, SCNG(on_event_context));
|
|
}
|
|
return token;
|
|
|
|
return_whitespace:
|
|
HANDLE_NEWLINES(yytext, yyleng);
|
|
if (SCNG(on_event)) {
|
|
SCNG(on_event)(ON_TOKEN, T_WHITESPACE, start_line, SCNG(on_event_context));
|
|
}
|
|
if (PARSER_MODE()) {
|
|
start_line = CG(zend_lineno);
|
|
goto restart;
|
|
} else {
|
|
return T_WHITESPACE;
|
|
}
|
|
|
|
skip_token:
|
|
if (SCNG(on_event)) {
|
|
SCNG(on_event)(ON_TOKEN, token, start_line, SCNG(on_event_context));
|
|
}
|
|
start_line = CG(zend_lineno);
|
|
goto restart;
|
|
}
|