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zend_language_scanner.l
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zend_language_scanner.l
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%{
/*
+----------------------------------------------------------------------+
| Zend Engine |
+----------------------------------------------------------------------+
| Copyright (c) 1998-2006 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: Andi Gutmans <andi@zend.com> |
| Zeev Suraski <zeev@zend.com> |
+----------------------------------------------------------------------+
*/
/* $Id$ */
#define yyleng SCNG(yy_leng)
#define yytext SCNG(yy_text)
#define yytext_ptr SCNG(yy_text)
#define yyin SCNG(yy_in)
#define yyout SCNG(yy_out)
#define yy_last_accepting_state SCNG(_yy_last_accepting_state)
#define yy_last_accepting_cpos SCNG(_yy_last_accepting_cpos)
#define yy_more_flag SCNG(_yy_more_flag)
#define yy_more_len SCNG(_yy_more_len)
%}
%x ST_IN_SCRIPTING
%x ST_DOUBLE_QUOTES
%x ST_BACKQUOTE
%x ST_HEREDOC
%x ST_START_HEREDOC
%x ST_END_HEREDOC
%x ST_LOOKING_FOR_PROPERTY
%x ST_LOOKING_FOR_VARNAME
%x ST_VAR_OFFSET
%x ST_COMMENT
%x ST_DOC_COMMENT
%x ST_ONE_LINE_COMMENT
%option stack
%{
#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"
#ifdef HAVE_STDARG_H
# include <stdarg.h>
#endif
#ifdef HAVE_UNISTD_H
# include <unistd.h>
#endif
#define YY_DECL int lex_scan(zval *zendlval TSRMLS_DC)
#define ECHO { ZEND_WRITE( yytext, yyleng ); }
#ifdef ZTS
# define MY_INPUT yyinput
#else
# define MY_INPUT input
#endif
/* Globals Macros */
#define SCNG LANG_SCNG
#ifdef ZTS
ZEND_API ts_rsrc_id language_scanner_globals_id;
#else
ZEND_API zend_scanner_globals language_scanner_globals;
#endif
#define YY_FATAL_ERROR zend_fatal_scanner_error
#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)++; \
} \
}
#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'))
void zend_fatal_scanner_error(char *message)
{
zend_error(E_COMPILE_ERROR, "%s", message);
}
BEGIN_EXTERN_C()
void startup_scanner(TSRMLS_D)
{
CG(heredoc) = NULL;
CG(heredoc_len) = 0;
CG(doc_comment) = NULL;
CG(doc_comment_len) = 0;
SCNG(yy_start_stack_ptr) = 0;
SCNG(yy_start_stack_depth) = 0;
SCNG(current_buffer) = NULL;
#ifdef ZEND_MULTIBYTE
SCNG(script_org) = NULL;
SCNG(script_org_size) = 0;
SCNG(script_filtered) = NULL;
SCNG(script_filtered_size) = 0;
SCNG(input_filter) = NULL;
SCNG(output_filter) = NULL;
SCNG(script_encoding) = NULL;
SCNG(internal_encoding) = NULL;
#endif /* ZEND_MULTIBYTE */
}
void shutdown_scanner(TSRMLS_D)
{
if (CG(heredoc)) {
efree(CG(heredoc));
CG(heredoc_len)=0;
}
if (SCNG(yy_start_stack)) {
yy_flex_free(SCNG(yy_start_stack));
SCNG(yy_start_stack) = NULL;
}
RESET_DOC_COMMENT();
#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_size) = 0;
SCNG(script_filtered_size) = 0;
SCNG(input_filter) = NULL;
SCNG(output_filter) = NULL;
SCNG(script_encoding) = NULL;
SCNG(internal_encoding) = NULL;
#endif /* ZEND_MULTIBYTE */
}
END_EXTERN_C()
ZEND_API void zend_save_lexical_state(zend_lex_state *lex_state TSRMLS_DC)
{
memcpy(&lex_state->buffer_state, &YY_CURRENT_BUFFER, sizeof(YY_BUFFER_STATE));
lex_state->in = SCNG(yy_in);
lex_state->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)
{
YY_BUFFER_STATE original_buffer_state = YY_CURRENT_BUFFER;
if (lex_state->buffer_state) {
yy_switch_to_buffer(lex_state->buffer_state TSRMLS_CC);
} else {
YY_CURRENT_BUFFER = NULL;
}
yy_delete_buffer(original_buffer_state TSRMLS_CC);
SCNG(yy_in) = lex_state->in;
BEGIN(lex_state->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 */
}
BEGIN_EXTERN_C()
ZEND_API void zend_file_handle_dtor(zend_file_handle *fh)
{
TSRMLS_FETCH();
switch (fh->type) {
case ZEND_HANDLE_FP:
fclose(fh->handle.fp);
break;
case ZEND_HANDLE_STREAM:
if (fh->handle.stream.closer) {
fh->handle.stream.closer(fh->handle.stream.handle TSRMLS_CC);
}
break;
case ZEND_HANDLE_FILENAME:
/* We're only supposed to get here when destructing the used_files hash,
* which doesn't really contain open files, but references to their names/paths
*/
break;
}
if (fh->opened_path) {
efree(fh->opened_path);
fh->opened_path = NULL;
}
if (fh->free_filename && fh->filename) {
efree(fh->filename);
fh->filename = NULL;
}
}
int zend_compare_file_handles(zend_file_handle *fh1, zend_file_handle *fh2)
{
if (fh1->type != fh2->type) {
return 0;
}
switch (fh1->type) {
case ZEND_HANDLE_FP:
return fh1->handle.fp==fh2->handle.fp;
break;
case ZEND_HANDLE_STREAM:
return fh1->handle.stream.handle == fh2->handle.stream.handle;
break;
}
return 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;
if (FAILURE == zend_stream_fixup(file_handle TSRMLS_CC)) {
return FAILURE;
}
zend_llist_add_element(&CG(open_files), file_handle);
/* Reset the scanner for scanning the new file */
SCNG(yy_in) = file_handle;
#ifdef ZEND_MULTIBYTE
if (file_handle->handle.stream.interactive == 0) {
if (zend_multibyte_read_script(TSRMLS_C) != 0) {
return FAILURE;
}
/* force flex to use buffer only */
SCNG(yy_in) = NULL;
SCNG(init) = 0;
SCNG(start) = 1;
zend_multibyte_set_filter(NULL TSRMLS_CC);
if (!SCNG(input_filter)) {
SCNG(script_filtered) = (char*)emalloc(SCNG(script_org_size)+1);
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);
}
/* flex requires doubled null */
SCNG(script_filtered) = (char*)erealloc(SCNG(script_filtered), SCNG(script_filtered_size)+2);
*(SCNG(script_filtered)+SCNG(script_filtered_size)) = (char)NULL;
*(SCNG(script_filtered)+SCNG(script_filtered_size)+1) = (char)NULL;
yy_scan_buffer(SCNG(script_filtered), SCNG(script_filtered_size)+2 TSRMLS_CC);
} else {
yy_switch_to_buffer(yy_create_buffer(SCNG(yy_in), YY_BUF_SIZE TSRMLS_CC) TSRMLS_CC);
}
#else /* !ZEND_MULTIBYTE */
yy_switch_to_buffer(yy_create_buffer(SCNG(yy_in), YY_BUF_SIZE TSRMLS_CC) TSRMLS_CC);
#endif /* ZEND_MULTIBYTE */
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;
retval_znode.u.constant.is_ref = 0;
retval_znode.u.constant.refcount = 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);
zend_bailout();
} else {
zend_message_dispatcher(ZMSG_FAILED_INCLUDE_FOPEN, file_handle->filename);
}
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);
zend_do_handle_exception(TSRMLS_C);
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);
} else {
efree(op_array);
retval = NULL;
}
}
if (compilation_successful) {
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_REALLOC(str->value.str.val, str->value.str.len+2);
str->value.str.val[str->value.str.len+1]=0;
SCNG(yy_in)=NULL;
#ifdef ZEND_MULTIBYTE
SCNG(script_org) = 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) = (char*)emalloc(SCNG(script_org_size)+1);
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);
}
/* flex requires doubled null */
SCNG(script_filtered) = (char*)erealloc(SCNG(script_filtered), SCNG(script_filtered_size)+2);
*(SCNG(script_filtered)+SCNG(script_filtered_size)) = (char)NULL;
*(SCNG(script_filtered)+SCNG(script_filtered_size)+1) = (char)NULL;
yy_scan_buffer(SCNG(script_filtered), SCNG(script_filtered_size)+2 TSRMLS_CC);
#else /* !ZEND_MULTIBYTE */
yy_scan_buffer(str->value.str.val, str->value.str.len+2 TSRMLS_CC);
#endif /* ZEND_MULTIBYTE */
zend_set_compiled_filename(filename TSRMLS_CC);
CG(zend_lineno) = 1;
CG(increment_lineno) = 0;
return SUCCESS;
}
ZEND_API int zend_get_scanned_file_offset(TSRMLS_D)
{
if (yyin) {
int offset_in_buffer = (yy_c_buf_p - (YY_CURRENT_BUFFER)->yy_ch_buf);
int read_bytes = SCNG(yy_n_chars);
int offset_from_the_end = read_bytes - offset_in_buffer;
return zend_stream_ftell(yyin TSRMLS_CC) - offset_from_the_end;
} else {
/* The entire file is in the buffer; probably zend multibyte
is enabled */
return (yy_c_buf_p - (YY_CURRENT_BUFFER)->yy_ch_buf);
}
}
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;
retval = NULL;
} else {
zend_do_return(NULL, 0 TSRMLS_CC);
zend_do_handle_exception(TSRMLS_C);
CG(active_op_array) = original_active_op_array;
pass_two(op_array TSRMLS_CC);
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);
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) {
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)
{
YY_BUFFER_STATE b = YY_CURRENT_BUFFER;
int offset, original_offset, length, free_flag;
char *p;
zend_encoding *new_encoding;
/* calculate current position */
offset = original_offset = yy_c_buf_p - b->yy_ch_buf;
if (old_input_filter && original_offset > 0) {
new_encoding = SCNG(script_encoding);
SCNG(script_encoding) = old_encoding;
do {
(old_input_filter)(&p, &length, SCNG(script_org), offset TSRMLS_CC);
if (!p) {
SCNG(script_encoding) = new_encoding;
return;
}
efree(p);
if (length > original_offset) {
offset--;
} else if (length < original_offset) {
offset++;
}
} while (original_offset != length);
SCNG(script_encoding) = new_encoding;
}
/* convert and set */
if (!SCNG(input_filter)) {
length = SCNG(script_org_size)-offset-1;
p = SCNG(script_org)+offset+1;
free_flag = 0;
} else {
SCNG(input_filter)(&p, &length, SCNG(script_org)+offset+1, SCNG(script_org_size)-offset-1 TSRMLS_CC);
free_flag = 1;
}
if (original_offset+length+1 > (int)b->yy_buf_size) {
b->yy_buf_size = original_offset+length+1;
b->yy_ch_buf = (char*)erealloc(b->yy_ch_buf, b->yy_buf_size+2);
SCNG(script_filtered) = b->yy_ch_buf;
SCNG(script_filtered_size) = b->yy_buf_size;
}
yy_c_buf_p = b->yy_ch_buf + original_offset;
strncpy(yy_c_buf_p+1, p, length);
b->yy_n_chars = original_offset + length + 1;
SCNG(yy_n_chars) = b->yy_n_chars;
b->yy_ch_buf[SCNG(yy_n_chars)] = YY_END_OF_BUFFER_CHAR;
b->yy_ch_buf[SCNG(yy_n_chars)+1] = YY_END_OF_BUFFER_CHAR;
if (free_flag) {
efree(p);
}
}
ZEND_API int zend_multibyte_yyinput(zend_file_handle *file_handle, char *buf, size_t len TSRMLS_DC)
{
int c = '*', n;
if (file_handle->handle.stream.interactive == 0) {
return zend_stream_read(file_handle, buf, len TSRMLS_CC);
}
/* 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 */
for (n = 0; n < len && (c = zend_stream_getc(yyin TSRMLS_CC)) != EOF && c != '\n'; ++n) {
buf[n] = (char)c;
}
if (c == '\n') {
buf[n++] = (char) c;
}
SCNG(script_org_size) = n;
SCNG(script_org) = (char*)emalloc(SCNG(script_org_size) + 1);
memcpy(SCNG(script_org), buf, n);
return n;
}
ZEND_API int zend_multibyte_read_script(TSRMLS_D)
{
char buf[8192];
int n;
if (SCNG(script_org)) {
efree(SCNG(script_org));
}
SCNG(script_org) = NULL;
SCNG(script_org_size) = 0;
for (; (n = zend_stream_read(yyin, buf, sizeof(buf) TSRMLS_CC)) > 0; ) {
SCNG(script_org_size) += n;
SCNG(script_org) = (char*)erealloc(SCNG(script_org), SCNG(script_org_size));
memcpy(SCNG(script_org) + SCNG(script_org_size) - n, buf, n);
}
if (n < 0) {
return -1;
}
SCNG(script_org) = (char*)erealloc(SCNG(script_org), SCNG(script_org_size) + 1);
*(SCNG(script_org)+SCNG(script_org_size)) = '\0';
return 0;
}
# define zend_copy_value(zendlval, yytext, yyleng) \
if (SCNG(output_filter)) { \
SCNG(output_filter)(&(zendlval->value.str.val), &(zendlval->value.str.len), yytext, yyleng TSRMLS_CC); \
} 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)) {
s = zendlval->value.str.val;
SCNG(output_filter)(&(zendlval->value.str.val), &(zendlval->value.str.len), s, zendlval->value.str.len TSRMLS_CC);
efree(s);
}
#endif /* ZEND_MULTIBYTE */
}
%}
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 (.|[\n])
NEWLINE ("\r"|"\n"|"\r\n")
/*
* LITERAL_DOLLAR matches unescaped $ that aren't followed by a label character
* or a { and therefore will be taken literally. The case of literal $ before
* a variable or "${" is handled in a rule for each string type
*/
DOUBLE_QUOTES_LITERAL_DOLLAR ("$"+([^a-zA-Z_\x7f-\xff$"\\{]|("\\"{ANY_CHAR})))
BACKQUOTE_LITERAL_DOLLAR ("$"+([^a-zA-Z_\x7f-\xff$`\\{]|("\\"{ANY_CHAR})))
HEREDOC_LITERAL_DOLLAR ("$"+([^a-zA-Z_\x7f-\xff$\n\r\\{]|("\\"[^\n\r])))
/*
* Usually, HEREDOC_NEWLINE will just function like a simple NEWLINE, but some
* special cases need to be handled. HEREDOC_CHARS doesn't allow a line to
* match when { or $, and/or \ is at the end. (("{"*|"$"*)"\\"?) handles that,
* along with cases where { or $, and/or \ is the ONLY thing on a line
*
* The other case is when a line contains a label, followed by ONLY
* { or $, and/or \ Handled by ({LABEL}";"?((("{"+|"$"+)"\\"?)|"\\"))
*/
HEREDOC_NEWLINE ((({LABEL}";"?((("{"+|"$"+)"\\"?)|"\\"))|(("{"*|"$"*)"\\"?)){NEWLINE})
/*
* This pattern is just used in the next 2 for matching { or literal $, and/or
* \ escape sequence immediately at the beginning of a line or after a label
*/
HEREDOC_CURLY_OR_ESCAPE_OR_DOLLAR (("{"+[^$\n\r\\{])|("{"*"\\"[^\n\r])|{HEREDOC_LITERAL_DOLLAR})
/*
* These 2 label-related patterns allow HEREDOC_CHARS to continue "regular"
* matching after a newline that starts with either a non-label character or a
* label that isn't followed by a newline. Like HEREDOC_CHARS, they won't match
* a variable or "{$" Matching a newline, and possibly label, up TO a variable
* or "{$", is handled in the heredoc rules
*
* The HEREDOC_LABEL_NO_NEWLINE pattern (";"[^$\n\r\\{]) handles cases where ;
* follows a label. [^a-zA-Z0-9_\x7f-\xff;$\n\r\\{] is needed to prevent a label
* character or ; from matching on a possible (real) ending label
*/
HEREDOC_NON_LABEL ([^a-zA-Z_\x7f-\xff$\n\r\\{]|{HEREDOC_CURLY_OR_ESCAPE_OR_DOLLAR})
HEREDOC_LABEL_NO_NEWLINE ({LABEL}([^a-zA-Z0-9_\x7f-\xff;$\n\r\\{]|(";"[^$\n\r\\{])|(";"?{HEREDOC_CURLY_OR_ESCAPE_OR_DOLLAR})))
/*
* CHARS matches everything up to a variable or "{$"
* {'s are matched as long as they aren't followed by a $
* The case of { before "{$" is handled in a rule for each string type
*
* For heredocs, matching continues across/after newlines if/when it's known
* that the next line doesn't contain a possible ending label
*/
DOUBLE_QUOTES_CHARS ("{"*([^$"\\{]|("\\"{ANY_CHAR}))|{DOUBLE_QUOTES_LITERAL_DOLLAR})
BACKQUOTE_CHARS ("{"*([^$`\\{]|("\\"{ANY_CHAR}))|{BACKQUOTE_LITERAL_DOLLAR})
HEREDOC_CHARS ("{"*([^$\n\r\\{]|("\\"[^\n\r]))|{HEREDOC_LITERAL_DOLLAR}|({HEREDOC_NEWLINE}+({HEREDOC_NON_LABEL}|{HEREDOC_LABEL_NO_NEWLINE})))
%option noyylineno
%option noyywrap
%%
<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;