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zend_language_scanner.l
2228 lines (1842 loc) · 49.8 KB
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zend_language_scanner.l
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/*
+----------------------------------------------------------------------+
| Zend Engine |
+----------------------------------------------------------------------+
| Copyright (c) 1998-2012 Zend Technologies Ltd. (http://www.zend.com) |
+----------------------------------------------------------------------+
| This source file is subject to version 2.00 of the Zend 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.zend.com/license/2_00.txt. |
| If you did not receive a copy of the Zend license and are unable to |
| obtain it through the world-wide-web, please send a note to |
| license@zend.com so we can mail you a copy immediately. |
+----------------------------------------------------------------------+
| Authors: Marcus Boerger <helly@php.net> |
| Nuno Lopes <nlopess@php.net> |
| Scott MacVicar <scottmac@php.net> |
| Flex version authors: |
| Andi Gutmans <andi@zend.com> |
| Zeev Suraski <zeev@zend.com> |
+----------------------------------------------------------------------+
*/
/* $Id$ */
#if 0
# define YYDEBUG(s, c) printf("state: %d char: %c\n", s, c)
#else
# define YYDEBUG(s, c)
#endif
#include "zend_language_scanner_defs.h"
#include <errno.h>
#include "zend.h"
#include "zend_alloc.h"
#include <zend_language_parser.h>
#include "zend_compile.h"
#include "zend_language_scanner.h"
#include "zend_highlight.h"
#include "zend_constants.h"
#include "zend_variables.h"
#include "zend_operators.h"
#include "zend_API.h"
#include "zend_strtod.h"
#include "zend_exceptions.h"
#include "tsrm_virtual_cwd.h"
#include "tsrm_config_common.h"
#define YYCTYPE unsigned char
#define YYFILL(n) { if ((YYCURSOR + n) >= (YYLIMIT + ZEND_MMAP_AHEAD)) { return 0; } }
#define YYCURSOR SCNG(yy_cursor)
#define YYLIMIT SCNG(yy_limit)
#define YYMARKER SCNG(yy_marker)
#define YYGETCONDITION() SCNG(yy_state)
#define YYSETCONDITION(s) SCNG(yy_state) = s
#define STATE(name) yyc##name
/* emulate flex constructs */
#define BEGIN(state) YYSETCONDITION(STATE(state))
#define YYSTATE YYGETCONDITION()
#define yytext ((char*)SCNG(yy_text))
#define yyleng SCNG(yy_leng)
#define yyless(x) do { YYCURSOR = (unsigned char*)yytext + x; \
yyleng = (unsigned int)x; } while(0)
#define yymore() goto yymore_restart
/* perform sanity check. If this message is triggered you should
increase the ZEND_MMAP_AHEAD value in the zend_streams.h file */
/*!max:re2c */
#if ZEND_MMAP_AHEAD < YYMAXFILL
# error ZEND_MMAP_AHEAD should be greater than or equal to YYMAXFILL
#endif
#ifdef HAVE_STDARG_H
# include <stdarg.h>
#endif
#ifdef HAVE_UNISTD_H
# include <unistd.h>
#endif
/* Globals Macros */
#define SCNG LANG_SCNG
#ifdef ZTS
ZEND_API ts_rsrc_id language_scanner_globals_id;
#else
ZEND_API zend_php_scanner_globals language_scanner_globals;
#endif
#define HANDLE_NEWLINES(s, l) \
do { \
char *p = (s), *boundary = p+(l); \
\
while (p<boundary) { \
if (*p == '\n' || (*p == '\r' && (*(p+1) != '\n'))) { \
CG(zend_lineno)++; \
} \
p++; \
} \
} while (0)
#define HANDLE_NEWLINE(c) \
{ \
if (c == '\n' || c == '\r') { \
CG(zend_lineno)++; \
} \
}
/* To save initial string length after scanning to first variable, CG(doc_comment_len) can be reused */
#define SET_DOUBLE_QUOTES_SCANNED_LENGTH(len) CG(doc_comment_len) = (len)
#define GET_DOUBLE_QUOTES_SCANNED_LENGTH() CG(doc_comment_len)
#define IS_LABEL_START(c) (((c) >= 'a' && (c) <= 'z') || ((c) >= 'A' && (c) <= 'Z') || (c) == '_' || (c) >= 0x7F)
#define ZEND_IS_OCT(c) ((c)>='0' && (c)<='7')
#define ZEND_IS_HEX(c) (((c)>='0' && (c)<='9') || ((c)>='a' && (c)<='f') || ((c)>='A' && (c)<='F'))
BEGIN_EXTERN_C()
static void _yy_push_state(int new_state TSRMLS_DC)
{
zend_stack_push(&SCNG(state_stack), (void *) &YYGETCONDITION(), sizeof(int));
YYSETCONDITION(new_state);
}
#define yy_push_state(state_and_tsrm) _yy_push_state(yyc##state_and_tsrm)
static void yy_pop_state(TSRMLS_D)
{
int *stack_state;
zend_stack_top(&SCNG(state_stack), (void **) &stack_state);
YYSETCONDITION(*stack_state);
zend_stack_del_top(&SCNG(state_stack));
}
static void yy_scan_buffer(char *str, unsigned int len TSRMLS_DC)
{
YYCURSOR = (YYCTYPE*)str;
YYLIMIT = YYCURSOR + len;
if (!SCNG(yy_start)) {
SCNG(yy_start) = YYCURSOR;
}
}
void startup_scanner(TSRMLS_D)
{
CG(heredoc) = NULL;
CG(heredoc_len) = 0;
CG(doc_comment) = NULL;
CG(doc_comment_len) = 0;
zend_stack_init(&SCNG(state_stack));
}
void shutdown_scanner(TSRMLS_D)
{
if (CG(heredoc)) {
efree(CG(heredoc));
CG(heredoc_len)=0;
}
zend_stack_destroy(&SCNG(state_stack));
RESET_DOC_COMMENT();
}
ZEND_API void zend_save_lexical_state(zend_lex_state *lex_state TSRMLS_DC)
{
lex_state->yy_leng = SCNG(yy_leng);
lex_state->yy_start = SCNG(yy_start);
lex_state->yy_text = SCNG(yy_text);
lex_state->yy_cursor = SCNG(yy_cursor);
lex_state->yy_marker = SCNG(yy_marker);
lex_state->yy_limit = SCNG(yy_limit);
lex_state->state_stack = SCNG(state_stack);
zend_stack_init(&SCNG(state_stack));
lex_state->in = SCNG(yy_in);
lex_state->yy_state = YYSTATE;
lex_state->filename = zend_get_compiled_filename(TSRMLS_C);
lex_state->lineno = CG(zend_lineno);
#ifdef ZEND_MULTIBYTE
lex_state->script_org = SCNG(script_org);
lex_state->script_org_size = SCNG(script_org_size);
lex_state->script_filtered = SCNG(script_filtered);
lex_state->script_filtered_size = SCNG(script_filtered_size);
lex_state->input_filter = SCNG(input_filter);
lex_state->output_filter = SCNG(output_filter);
lex_state->script_encoding = SCNG(script_encoding);
lex_state->internal_encoding = SCNG(internal_encoding);
#endif /* ZEND_MULTIBYTE */
}
ZEND_API void zend_restore_lexical_state(zend_lex_state *lex_state TSRMLS_DC)
{
SCNG(yy_leng) = lex_state->yy_leng;
SCNG(yy_start) = lex_state->yy_start;
SCNG(yy_text) = lex_state->yy_text;
SCNG(yy_cursor) = lex_state->yy_cursor;
SCNG(yy_marker) = lex_state->yy_marker;
SCNG(yy_limit) = lex_state->yy_limit;
zend_stack_destroy(&SCNG(state_stack));
SCNG(state_stack) = lex_state->state_stack;
SCNG(yy_in) = lex_state->in;
YYSETCONDITION(lex_state->yy_state);
CG(zend_lineno) = lex_state->lineno;
zend_restore_compiled_filename(lex_state->filename TSRMLS_CC);
#ifdef ZEND_MULTIBYTE
if (SCNG(script_org)) {
efree(SCNG(script_org));
SCNG(script_org) = NULL;
}
if (SCNG(script_filtered)) {
efree(SCNG(script_filtered));
SCNG(script_filtered) = NULL;
}
SCNG(script_org) = lex_state->script_org;
SCNG(script_org_size) = lex_state->script_org_size;
SCNG(script_filtered) = lex_state->script_filtered;
SCNG(script_filtered_size) = lex_state->script_filtered_size;
SCNG(input_filter) = lex_state->input_filter;
SCNG(output_filter) = lex_state->output_filter;
SCNG(script_encoding) = lex_state->script_encoding;
SCNG(internal_encoding) = lex_state->internal_encoding;
#endif /* ZEND_MULTIBYTE */
if (CG(heredoc)) {
efree(CG(heredoc));
CG(heredoc) = NULL;
CG(heredoc_len) = 0;
}
}
ZEND_API void zend_destroy_file_handle(zend_file_handle *file_handle TSRMLS_DC)
{
zend_llist_del_element(&CG(open_files), file_handle, (int (*)(void *, void *)) zend_compare_file_handles);
/* zend_file_handle_dtor() operates on the copy, so we have to NULLify the original here */
file_handle->opened_path = NULL;
if (file_handle->free_filename) {
file_handle->filename = NULL;
}
}
ZEND_API int open_file_for_scanning(zend_file_handle *file_handle TSRMLS_DC)
{
char *file_path = NULL, *buf;
size_t size, offset = 0;
/* 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)) == -1) {
offset = 0;
}
}
if (zend_stream_fixup(file_handle, &buf, &size TSRMLS_CC) == 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 != -1) {
#ifdef ZEND_MULTIBYTE
if (zend_multibyte_read_script((unsigned char *)buf, size TSRMLS_CC) != 0) {
return FAILURE;
}
SCNG(yy_in) = NULL;
zend_multibyte_set_filter(NULL TSRMLS_CC);
if (!SCNG(input_filter)) {
SCNG(script_filtered) = (unsigned char*)emalloc(SCNG(script_org_size)+2);
memcpy(SCNG(script_filtered), SCNG(script_org), SCNG(script_org_size)+1);
SCNG(script_filtered_size) = SCNG(script_org_size);
} else {
SCNG(input_filter)(&SCNG(script_filtered), &SCNG(script_filtered_size), SCNG(script_org), SCNG(script_org_size) TSRMLS_CC);
if (SCNG(script_filtered) == NULL) {
zend_error_noreturn(E_COMPILE_ERROR, "Could not convert the script from the detected "
"encoding \"%s\" to a compatible encoding", LANG_SCNG(script_encoding)->name);
}
}
SCNG(yy_start) = SCNG(script_filtered) - offset;
yy_scan_buffer((char *)SCNG(script_filtered), SCNG(script_filtered_size) TSRMLS_CC);
#else /* !ZEND_MULTIBYTE */
SCNG(yy_start) = buf - offset;
yy_scan_buffer(buf, size TSRMLS_CC);
#endif /* ZEND_MULTIBYTE */
} else {
zend_error_noreturn(E_COMPILE_ERROR, "zend_stream_mmap() failed");
}
BEGIN(INITIAL);
if (file_handle->opened_path) {
file_path = file_handle->opened_path;
} else {
file_path = file_handle->filename;
}
zend_set_compiled_filename(file_path TSRMLS_CC);
if (CG(start_lineno)) {
CG(zend_lineno) = CG(start_lineno);
CG(start_lineno) = 0;
} else {
CG(zend_lineno) = 1;
}
CG(increment_lineno) = 0;
return SUCCESS;
}
END_EXTERN_C()
ZEND_API zend_op_array *compile_file(zend_file_handle *file_handle, int type TSRMLS_DC)
{
zend_lex_state original_lex_state;
zend_op_array *op_array = (zend_op_array *) emalloc(sizeof(zend_op_array));
zend_op_array *original_active_op_array = CG(active_op_array);
zend_op_array *retval=NULL;
int compiler_result;
zend_bool compilation_successful=0;
znode retval_znode;
zend_bool original_in_compilation = CG(in_compilation);
retval_znode.op_type = IS_CONST;
retval_znode.u.constant.type = IS_LONG;
retval_znode.u.constant.value.lval = 1;
Z_UNSET_ISREF(retval_znode.u.constant);
Z_SET_REFCOUNT(retval_znode.u.constant, 1);
zend_save_lexical_state(&original_lex_state TSRMLS_CC);
retval = op_array; /* success oriented */
if (open_file_for_scanning(file_handle TSRMLS_CC)==FAILURE) {
if (type==ZEND_REQUIRE) {
zend_message_dispatcher(ZMSG_FAILED_REQUIRE_FOPEN, file_handle->filename TSRMLS_CC);
zend_bailout();
} else {
zend_message_dispatcher(ZMSG_FAILED_INCLUDE_FOPEN, file_handle->filename TSRMLS_CC);
}
compilation_successful=0;
} else {
init_op_array(op_array, ZEND_USER_FUNCTION, INITIAL_OP_ARRAY_SIZE TSRMLS_CC);
CG(in_compilation) = 1;
CG(active_op_array) = op_array;
compiler_result = zendparse(TSRMLS_C);
zend_do_return(&retval_znode, 0 TSRMLS_CC);
CG(in_compilation) = original_in_compilation;
if (compiler_result==1) { /* parser error */
zend_bailout();
}
compilation_successful=1;
}
if (retval) {
CG(active_op_array) = original_active_op_array;
if (compilation_successful) {
pass_two(op_array TSRMLS_CC);
zend_release_labels(TSRMLS_C);
} else {
efree(op_array);
retval = NULL;
}
}
zend_restore_lexical_state(&original_lex_state TSRMLS_CC);
return retval;
}
zend_op_array *compile_filename(int type, zval *filename TSRMLS_DC)
{
zend_file_handle file_handle;
zval tmp;
zend_op_array *retval;
char *opened_path = NULL;
if (filename->type != IS_STRING) {
tmp = *filename;
zval_copy_ctor(&tmp);
convert_to_string(&tmp);
filename = &tmp;
}
file_handle.filename = filename->value.str.val;
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 TSRMLS_CC);
if (retval && file_handle.handle.stream.handle) {
int dummy = 1;
if (!file_handle.opened_path) {
file_handle.opened_path = opened_path = estrndup(filename->value.str.val, filename->value.str.len);
}
zend_hash_add(&EG(included_files), file_handle.opened_path, strlen(file_handle.opened_path)+1, (void *)&dummy, sizeof(int), NULL);
if (opened_path) {
efree(opened_path);
}
}
zend_destroy_file_handle(&file_handle TSRMLS_CC);
if (filename==&tmp) {
zval_dtor(&tmp);
}
return retval;
}
ZEND_API int zend_prepare_string_for_scanning(zval *str, char *filename TSRMLS_DC)
{
/* enforce two trailing NULLs for flex... */
str->value.str.val = safe_erealloc(str->value.str.val, 1, str->value.str.len, ZEND_MMAP_AHEAD);
memset(str->value.str.val + str->value.str.len, 0, ZEND_MMAP_AHEAD);
SCNG(yy_in)=NULL;
SCNG(yy_start) = NULL;
#ifdef ZEND_MULTIBYTE
SCNG(script_org) = (unsigned char *)estrdup(str->value.str.val);
SCNG(script_org_size) = str->value.str.len;
zend_multibyte_set_filter(CG(internal_encoding) TSRMLS_CC);
if (!SCNG(input_filter)) {
SCNG(script_filtered) = (unsigned char*)emalloc(SCNG(script_org_size)+2);
memcpy(SCNG(script_filtered), SCNG(script_org), SCNG(script_org_size)+1);
SCNG(script_filtered_size) = SCNG(script_org_size);
} else {
SCNG(input_filter)(&SCNG(script_filtered), &SCNG(script_filtered_size), SCNG(script_org), SCNG(script_org_size) TSRMLS_CC);
}
yy_scan_buffer((char *)SCNG(script_filtered), SCNG(script_filtered_size) TSRMLS_CC);
#else /* !ZEND_MULTIBYTE */
yy_scan_buffer(str->value.str.val, str->value.str.len TSRMLS_CC);
#endif /* ZEND_MULTIBYTE */
zend_set_compiled_filename(filename TSRMLS_CC);
CG(zend_lineno) = 1;
CG(increment_lineno) = 0;
return SUCCESS;
}
ZEND_API size_t zend_get_scanned_file_offset(TSRMLS_D)
{
size_t offset = SCNG(yy_cursor) - SCNG(yy_start);
#ifdef ZEND_MULTIBYTE
if (SCNG(input_filter)) {
size_t original_offset = offset, length = 0; do {
unsigned char *p = NULL;
SCNG(input_filter)(&p, &length, SCNG(script_org), offset TSRMLS_CC);
if (!p) {
break;
}
efree(p);
if (length > original_offset) {
offset--;
} else if (length < original_offset) {
offset++;
}
} while (original_offset != length);
}
#endif
return offset;
}
zend_op_array *compile_string(zval *source_string, char *filename TSRMLS_DC)
{
zend_lex_state original_lex_state;
zend_op_array *op_array = (zend_op_array *) emalloc(sizeof(zend_op_array));
zend_op_array *original_active_op_array = CG(active_op_array);
zend_op_array *retval;
zval tmp;
int compiler_result;
zend_bool original_in_compilation = CG(in_compilation);
if (source_string->value.str.len==0) {
efree(op_array);
return NULL;
}
CG(in_compilation) = 1;
tmp = *source_string;
zval_copy_ctor(&tmp);
convert_to_string(&tmp);
source_string = &tmp;
zend_save_lexical_state(&original_lex_state TSRMLS_CC);
if (zend_prepare_string_for_scanning(source_string, filename TSRMLS_CC)==FAILURE) {
efree(op_array);
retval = NULL;
} else {
zend_bool orig_interactive = CG(interactive);
CG(interactive) = 0;
init_op_array(op_array, ZEND_EVAL_CODE, INITIAL_OP_ARRAY_SIZE TSRMLS_CC);
CG(interactive) = orig_interactive;
CG(active_op_array) = op_array;
BEGIN(ST_IN_SCRIPTING);
compiler_result = zendparse(TSRMLS_C);
#ifdef ZEND_MULTIBYTE
if (SCNG(script_org)) {
efree(SCNG(script_org));
SCNG(script_org) = NULL;
}
if (SCNG(script_filtered)) {
efree(SCNG(script_filtered));
SCNG(script_filtered) = NULL;
}
#endif /* ZEND_MULTIBYTE */
if (compiler_result==1) {
CG(active_op_array) = original_active_op_array;
CG(unclean_shutdown)=1;
destroy_op_array(op_array TSRMLS_CC);
efree(op_array);
retval = NULL;
} else {
zend_do_return(NULL, 0 TSRMLS_CC);
CG(active_op_array) = original_active_op_array;
pass_two(op_array TSRMLS_CC);
zend_release_labels(TSRMLS_C);
retval = op_array;
}
}
zend_restore_lexical_state(&original_lex_state TSRMLS_CC);
zval_dtor(&tmp);
CG(in_compilation) = original_in_compilation;
return retval;
}
BEGIN_EXTERN_C()
int highlight_file(char *filename, zend_syntax_highlighter_ini *syntax_highlighter_ini TSRMLS_DC)
{
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 TSRMLS_CC);
if (open_file_for_scanning(&file_handle TSRMLS_CC)==FAILURE) {
zend_message_dispatcher(ZMSG_FAILED_HIGHLIGHT_FOPEN, filename TSRMLS_CC);
zend_restore_lexical_state(&original_lex_state TSRMLS_CC);
return FAILURE;
}
zend_highlight(syntax_highlighter_ini TSRMLS_CC);
#ifdef ZEND_MULTIBYTE
if (SCNG(script_org)) {
efree(SCNG(script_org));
SCNG(script_org) = NULL;
}
if (SCNG(script_filtered)) {
efree(SCNG(script_filtered));
SCNG(script_filtered) = NULL;
}
#endif /* ZEND_MULTIBYTE */
zend_destroy_file_handle(&file_handle TSRMLS_CC);
zend_restore_lexical_state(&original_lex_state TSRMLS_CC);
return SUCCESS;
}
int highlight_string(zval *str, zend_syntax_highlighter_ini *syntax_highlighter_ini, char *str_name TSRMLS_DC)
{
zend_lex_state original_lex_state;
zval tmp = *str;
str = &tmp;
zval_copy_ctor(str);
zend_save_lexical_state(&original_lex_state TSRMLS_CC);
if (zend_prepare_string_for_scanning(str, str_name TSRMLS_CC)==FAILURE) {
zend_restore_lexical_state(&original_lex_state TSRMLS_CC);
return FAILURE;
}
BEGIN(INITIAL);
zend_highlight(syntax_highlighter_ini TSRMLS_CC);
#ifdef ZEND_MULTIBYTE
if (SCNG(script_org)) {
efree(SCNG(script_org));
SCNG(script_org) = NULL;
}
if (SCNG(script_filtered)) {
efree(SCNG(script_filtered));
SCNG(script_filtered) = NULL;
}
#endif /* ZEND_MULTIBYTE */
zend_restore_lexical_state(&original_lex_state TSRMLS_CC);
zval_dtor(str);
return SUCCESS;
}
END_EXTERN_C()
#ifdef ZEND_MULTIBYTE
BEGIN_EXTERN_C()
ZEND_API void zend_multibyte_yyinput_again(zend_encoding_filter old_input_filter, zend_encoding *old_encoding TSRMLS_DC)
{
size_t original_offset, offset, free_flag, new_len, length;
unsigned char *p;
/* calculate current position */
offset = original_offset = YYCURSOR - SCNG(yy_start);
if (old_input_filter && offset > 0) {
zend_encoding *new_encoding = SCNG(script_encoding);
zend_encoding_filter new_filter = SCNG(input_filter);
SCNG(script_encoding) = old_encoding;
SCNG(input_filter) = old_input_filter;
offset = zend_get_scanned_file_offset(TSRMLS_C);
SCNG(script_encoding) = new_encoding;
SCNG(input_filter) = new_filter;
}
/* convert and set */
if (!SCNG(input_filter)) {
length = SCNG(script_org_size) - offset;
p = SCNG(script_org) + offset;
free_flag = 0;
} else {
SCNG(input_filter)(&p, &length, SCNG(script_org) + offset, SCNG(script_org_size) - offset TSRMLS_CC);
free_flag = 1;
}
new_len = original_offset + length;
if (new_len > YYLIMIT - SCNG(yy_start)) {
unsigned char *new_yy_start = erealloc(SCNG(yy_start), new_len);
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_start) = new_yy_start;
SCNG(script_filtered) = new_yy_start;
SCNG(script_filtered_size) = new_len;
}
SCNG(yy_limit) = SCNG(yy_start) + new_len;
memmove(SCNG(yy_start) + original_offset, p, length);
if (free_flag) {
efree(p);
}
}
ZEND_API int zend_multibyte_yyinput(zend_file_handle *file_handle, char *buf, size_t len TSRMLS_DC)
{
size_t n;
if (CG(interactive) == 0) {
if (zend_stream_fixup(file_handle, &buf, &len TSRMLS_CC) == FAILURE) {
return FAILURE;
}
n = len;
return n;
}
/* interactive */
if (SCNG(script_org)) {
efree(SCNG(script_org));
}
if (SCNG(script_filtered)) {
efree(SCNG(script_filtered));
}
SCNG(script_org) = NULL;
SCNG(script_org_size) = 0;
/* TODO: support widechars */
if (zend_stream_fixup(file_handle, &buf, &len TSRMLS_CC) == FAILURE) {
return FAILURE;
}
n = len;
SCNG(script_org_size) = n;
SCNG(script_org) = (unsigned char*)emalloc(SCNG(script_org_size) + 1);
memcpy(SCNG(script_org), buf, n);
return n;
}
ZEND_API int zend_multibyte_read_script(unsigned char *buf, size_t n TSRMLS_DC)
{
if (SCNG(script_org)) {
efree(SCNG(script_org));
SCNG(script_org) = NULL;
}
SCNG(script_org_size) = n;
SCNG(script_org) = (unsigned char*)emalloc(SCNG(script_org_size) + 1);
memcpy(SCNG(script_org), buf, n);
*(SCNG(script_org)+SCNG(script_org_size)) = '\0';
return 0;
}
# define zend_copy_value(zendlval, yytext, yyleng) \
if (SCNG(output_filter)) { \
size_t sz = 0; \
SCNG(output_filter)((unsigned char **)&(zendlval->value.str.val), &sz, (unsigned char *)yytext, (size_t)yyleng TSRMLS_CC); \
zendlval->value.str.len = sz; \
} else { \
zendlval->value.str.val = (char *) estrndup(yytext, yyleng); \
zendlval->value.str.len = yyleng; \
}
#else /* ZEND_MULTIBYTE */
# define zend_copy_value(zendlval, yytext, yyleng) \
zendlval->value.str.val = (char *)estrndup(yytext, yyleng); \
zendlval->value.str.len = yyleng;
#endif /* ZEND_MULTIBYTE */
static void zend_scan_escape_string(zval *zendlval, char *str, int len, char quote_type TSRMLS_DC)
{
register char *s, *t;
char *end;
ZVAL_STRINGL(zendlval, str, len, 1);
/* convert escape sequences */
s = t = zendlval->value.str.val;
end = s+zendlval->value.str.len;
while (s<end) {
if (*s=='\\') {
s++;
if (s >= end) {
*t++ = '\\';
break;
}
switch(*s) {
case 'n':
*t++ = '\n';
zendlval->value.str.len--;
break;
case 'r':
*t++ = '\r';
zendlval->value.str.len--;
break;
case 't':
*t++ = '\t';
zendlval->value.str.len--;
break;
case 'f':
*t++ = '\f';
zendlval->value.str.len--;
break;
case 'v':
*t++ = '\v';
zendlval->value.str.len--;
break;
case '"':
case '`':
if (*s != quote_type) {
*t++ = '\\';
*t++ = *s;
break;
}
case '\\':
case '$':
*t++ = *s;
zendlval->value.str.len--;
break;
case 'x':
case 'X':
if (ZEND_IS_HEX(*(s+1))) {
char hex_buf[3] = { 0, 0, 0 };
zendlval->value.str.len--; /* for the 'x' */
hex_buf[0] = *(++s);
zendlval->value.str.len--;
if (ZEND_IS_HEX(*(s+1))) {
hex_buf[1] = *(++s);
zendlval->value.str.len--;
}
*t++ = (char) strtol(hex_buf, NULL, 16);
} else {
*t++ = '\\';
*t++ = *s;
}
break;
default:
/* check for an octal */
if (ZEND_IS_OCT(*s)) {
char octal_buf[4] = { 0, 0, 0, 0 };
octal_buf[0] = *s;
zendlval->value.str.len--;
if (ZEND_IS_OCT(*(s+1))) {
octal_buf[1] = *(++s);
zendlval->value.str.len--;
if (ZEND_IS_OCT(*(s+1))) {
octal_buf[2] = *(++s);
zendlval->value.str.len--;
}
}
*t++ = (char) 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;
#ifdef ZEND_MULTIBYTE
if (SCNG(output_filter)) {
size_t sz = 0;
s = zendlval->value.str.val;
SCNG(output_filter)((unsigned char **)&(zendlval->value.str.val), &sz, (unsigned char *)s, (size_t)zendlval->value.str.len TSRMLS_CC);
zendlval->value.str.len = sz;
efree(s);
}
#endif /* ZEND_MULTIBYTE */
}
int lex_scan(zval *zendlval TSRMLS_DC)
{
restart:
SCNG(yy_text) = YYCURSOR;
yymore_restart:
/*!re2c
re2c:yyfill:check = 0;
LNUM [0-9]+
DNUM ([0-9]*"."[0-9]+)|([0-9]+"."[0-9]*)
EXPONENT_DNUM (({LNUM}|{DNUM})[eE][+-]?{LNUM})
HNUM "0x"[0-9a-fA-F]+
LABEL [a-zA-Z_\x7f-\xff][a-zA-Z0-9_\x7f-\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 T_EXIT;
}
<ST_IN_SCRIPTING>"die" {
return T_EXIT;
}
<ST_IN_SCRIPTING>"function" {
return T_FUNCTION;
}
<ST_IN_SCRIPTING>"const" {
return T_CONST;
}
<ST_IN_SCRIPTING>"return" {
return T_RETURN;
}
<ST_IN_SCRIPTING>"try" {
return T_TRY;
}
<ST_IN_SCRIPTING>"catch" {
return T_CATCH;
}
<ST_IN_SCRIPTING>"throw" {
return T_THROW;
}
<ST_IN_SCRIPTING>"if" {
return T_IF;
}
<ST_IN_SCRIPTING>"elseif" {
return T_ELSEIF;
}
<ST_IN_SCRIPTING>"endif" {
return T_ENDIF;
}
<ST_IN_SCRIPTING>"else" {
return T_ELSE;
}
<ST_IN_SCRIPTING>"while" {
return T_WHILE;
}
<ST_IN_SCRIPTING>"endwhile" {
return T_ENDWHILE;
}
<ST_IN_SCRIPTING>"do" {
return T_DO;
}
<ST_IN_SCRIPTING>"for" {
return T_FOR;
}
<ST_IN_SCRIPTING>"endfor" {
return T_ENDFOR;
}
<ST_IN_SCRIPTING>"foreach" {
return T_FOREACH;
}
<ST_IN_SCRIPTING>"endforeach" {
return T_ENDFOREACH;
}
<ST_IN_SCRIPTING>"declare" {
return T_DECLARE;
}
<ST_IN_SCRIPTING>"enddeclare" {
return T_ENDDECLARE;
}
<ST_IN_SCRIPTING>"instanceof" {
return T_INSTANCEOF;
}
<ST_IN_SCRIPTING>"as" {
return T_AS;
}
<ST_IN_SCRIPTING>"switch" {
return T_SWITCH;
}
<ST_IN_SCRIPTING>"endswitch" {
return T_ENDSWITCH;
}
<ST_IN_SCRIPTING>"case" {
return T_CASE;
}
<ST_IN_SCRIPTING>"default" {
return T_DEFAULT;
}
<ST_IN_SCRIPTING>"break" {
return T_BREAK;
}
<ST_IN_SCRIPTING>"continue" {
return T_CONTINUE;
}
<ST_IN_SCRIPTING>"goto" {
return T_GOTO;
}
<ST_IN_SCRIPTING>"echo" {
return T_ECHO;
}
<ST_IN_SCRIPTING>"print" {
return T_PRINT;