1 /* common.h */ 2 /* 3 License of Lrexlib release 4 -------------------------- 5 6 Copyright (C) Reuben Thomas 2000-2012 7 Copyright (C) Shmuel Zeigerman 2004-2012 8 9 SPDX-License-Identifier: MIT 10 */ 11 12 #ifndef _LREXLIB_H 13 #define _LREXLIB_H 14 15 #include "lua.h" 16 17 #define VERSION "2.7.2" 18 19 #define LREXLIB_WIRESHARK 20 21 #if LUA_VERSION_NUM > 501 22 int luaL_typerror (lua_State *L, int narg, const char *tname); 23 #endif 24 25 /* REX_API can be overridden from the command line or Makefile */ 26 #ifndef REX_API 27 # define REX_API LUALIB_API 28 #endif 29 30 #ifndef REX_OPENLIB 31 # define REX_OPENLIB luaopen_rex_glib 32 #endif 33 34 /* public function declarations */ 35 REX_API int REX_OPENLIB (lua_State *L); 36 extern int Gregex_get_compile_flags (lua_State *L); 37 extern int Gregex_get_match_flags (lua_State *L); 38 extern int Gregex_get_flags (lua_State *L); 39 40 /* Special values for maxmatch in gsub. They all must be negative. */ 41 #define GSUB_UNLIMITED -1 42 #define GSUB_CONDITIONAL -2 43 44 /* Common structs and functions */ 45 46 typedef struct { 47 const char* key; 48 int val; 49 } flag_pair; 50 51 typedef struct { /* compile arguments */ 52 const char * pattern; 53 size_t patlen; 54 void * ud; 55 int cflags; 56 const char * locale; /* PCRE, Oniguruma */ 57 const unsigned char * tables; /* PCRE */ 58 int tablespos; /* PCRE */ 59 void * syntax; /* Oniguruma */ 60 const unsigned char * translate; /* GNU */ 61 int gnusyn; /* GNU */ 62 } TArgComp; 63 64 typedef struct { /* exec arguments */ 65 const char * text; 66 size_t textlen; 67 int startoffset; 68 int eflags; 69 int funcpos; 70 int maxmatch; 71 int funcpos2; /* used with gsub */ 72 int reptype; /* used with gsub */ 73 size_t ovecsize; /* PCRE: dfa_exec */ 74 size_t wscount; /* PCRE: dfa_exec */ 75 } TArgExec; 76 77 struct tagFreeList; /* forward declaration */ 78 79 struct tagBuffer { 80 size_t size; 81 size_t top; 82 char * arr; 83 lua_State * L; 84 struct tagFreeList * freelist; 85 }; 86 87 struct tagFreeList { 88 struct tagBuffer * list[16]; 89 int top; 90 }; 91 92 typedef struct tagBuffer TBuffer; 93 typedef struct tagFreeList TFreeList; 94 95 void freelist_init (TFreeList *fl); 96 void freelist_add (TFreeList *fl, TBuffer *buf); 97 void freelist_free (TFreeList *fl); 98 99 void buffer_init (TBuffer *buf, size_t sz, lua_State *L, TFreeList *fl); 100 void buffer_free (TBuffer *buf); 101 void buffer_clear (TBuffer *buf); 102 void buffer_addbuffer (TBuffer *trg, TBuffer *src); 103 void buffer_addlstring (TBuffer *buf, const void *src, size_t sz); 104 void buffer_addvalue (TBuffer *buf, int stackpos); 105 void buffer_pushresult (TBuffer *buf); 106 107 void bufferZ_putrepstring (TBuffer *buf, int reppos, int nsub); 108 int bufferZ_next (TBuffer *buf, size_t *iter, size_t *len, const char **str); 109 void bufferZ_addlstring (TBuffer *buf, const void *src, size_t len); 110 void bufferZ_addnum (TBuffer *buf, size_t num); 111 112 int get_int_field (lua_State *L, const char* field); 113 void set_int_field (lua_State *L, const char* field, int val); 114 int get_flags (lua_State *L, const flag_pair **arr); 115 const char *get_flag_key (const flag_pair *fp, int val); 116 void *Lmalloc (lua_State *L, size_t size); 117 void *Lrealloc (lua_State *L, void *p, size_t osize, size_t nsize); 118 void Lfree (lua_State *L, void *p, size_t size); 119 120 #endif 121