1 /* 2 +----------------------------------------------------------------------+ 3 | Zend Engine | 4 +----------------------------------------------------------------------+ 5 | Copyright (c) Zend Technologies Ltd. (http://www.zend.com) | 6 +----------------------------------------------------------------------+ 7 | This source file is subject to version 2.00 of the Zend license, | 8 | that is bundled with this package in the file LICENSE, and is | 9 | available through the world-wide-web at the following url: | 10 | http://www.zend.com/license/2_00.txt. | 11 | If you did not receive a copy of the Zend license and are unable to | 12 | obtain it through the world-wide-web, please send a note to | 13 | license@zend.com so we can mail you a copy immediately. | 14 +----------------------------------------------------------------------+ 15 | Authors: Andi Gutmans <andi@php.net> | 16 | Zeev Suraski <zeev@php.net> | 17 +----------------------------------------------------------------------+ 18 */ 19 20 #ifndef ZEND_SCANNER_H 21 #define ZEND_SCANNER_H 22 23 #include "zend_globals.h" 24 25 typedef struct _zend_lex_state { 26 unsigned int yy_leng; 27 unsigned char *yy_start; 28 unsigned char *yy_text; 29 unsigned char *yy_cursor; 30 unsigned char *yy_marker; 31 unsigned char *yy_limit; 32 int yy_state; 33 zend_stack state_stack; 34 zend_ptr_stack heredoc_label_stack; 35 zend_stack nest_location_stack; /* for syntax error reporting */ 36 37 zend_file_handle *in; 38 uint32_t lineno; 39 zend_string *filename; 40 41 /* original (unfiltered) script */ 42 unsigned char *script_org; 43 size_t script_org_size; 44 45 /* filtered script */ 46 unsigned char *script_filtered; 47 size_t script_filtered_size; 48 49 /* input/output filters */ 50 zend_encoding_filter input_filter; 51 zend_encoding_filter output_filter; 52 const zend_encoding *script_encoding; 53 54 /* hooks */ 55 void (*on_event)( 56 zend_php_scanner_event event, int token, int line, 57 const char *text, size_t length, void *context); 58 void *on_event_context; 59 60 zend_ast *ast; 61 zend_arena *ast_arena; 62 } zend_lex_state; 63 64 typedef struct _zend_heredoc_label { 65 char *label; 66 int length; 67 int indentation; 68 bool indentation_uses_spaces; 69 } zend_heredoc_label; 70 71 /* Track locations of unclosed {, [, (, etc. for better syntax error reporting */ 72 typedef struct _zend_nest_location { 73 char text; 74 int lineno; 75 } zend_nest_location; 76 77 BEGIN_EXTERN_C() 78 ZEND_API void zend_save_lexical_state(zend_lex_state *lex_state); 79 ZEND_API void zend_restore_lexical_state(zend_lex_state *lex_state); 80 ZEND_API void zend_prepare_string_for_scanning(zval *str, zend_string *filename); 81 ZEND_API void zend_multibyte_yyinput_again(zend_encoding_filter old_input_filter, const zend_encoding *old_encoding); 82 ZEND_API zend_result zend_multibyte_set_filter(const zend_encoding *onetime_encoding); 83 ZEND_API zend_result zend_lex_tstring(zval *zv, unsigned char *ident); 84 85 END_EXTERN_C() 86 87 #endif 88
