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/* common.h */
/* See Copyright Notice in the file LICENSE */
#ifndef COMMON_H
#define COMMON_H
#include "lua.h"
#if LUA_VERSION_NUM < 502
#define luaL_typeerror luaL_typerror
#endif
/* REX_API can be overridden from the command line or Makefile */
#ifndef REX_API
# define REX_API LUALIB_API
#endif
/* Special values for maxmatch in gsub. They all must be negative. */
#define GSUB_UNLIMITED -1
#define GSUB_CONDITIONAL -2
/* Common structs and functions */
typedef struct {
const char* key;
int val;
} flag_pair;
typedef struct { /* compile arguments */
const char * pattern;
size_t patlen;
void * ud;
int cflags;
const char * locale; /* PCRE, Oniguruma */
const unsigned char * tables; /* PCRE */
int tablespos; /* PCRE */
void * syntax; /* Oniguruma */
const unsigned char * translate; /* GNU */
int gnusyn; /* GNU */
} TArgComp;
typedef struct { /* exec arguments */
const char * text;
size_t textlen;
int startoffset;
int eflags;
int funcpos;
int maxmatch;
int funcpos2; /* used with gsub */
int reptype; /* used with gsub */
size_t ovecsize; /* PCRE: dfa_exec */
size_t wscount; /* PCRE: dfa_exec */
} TArgExec;
struct tagFreeList; /* forward declaration */
struct tagBuffer {
size_t size;
size_t top;
char * arr;
lua_State * L;
struct tagFreeList * freelist;
};
struct tagFreeList {
struct tagBuffer * list[16];
int top;
};
typedef struct tagBuffer TBuffer;
typedef struct tagFreeList TFreeList;
void freelist_init (TFreeList *fl);
void freelist_add (TFreeList *fl, TBuffer *buf);
void freelist_free (TFreeList *fl);
void buffer_init (TBuffer *buf, size_t sz, lua_State *L, TFreeList *fl);
void buffer_free (TBuffer *buf);
void buffer_clear (TBuffer *buf);
void buffer_addbuffer (TBuffer *trg, TBuffer *src);
void buffer_addlstring (TBuffer *buf, const void *src, size_t sz);
void buffer_addvalue (TBuffer *buf, int stackpos);
void buffer_pushresult (TBuffer *buf);
void bufferZ_putrepstring (TBuffer *buf, int reppos, int nsub);
void bufferZ_putrepstringW (TBuffer *buf, int reppos, int nsub);
int bufferZ_next (TBuffer *buf, size_t *iter, size_t *len, const char **str);
int get_int_field (lua_State *L, const char* field);
void set_int_field (lua_State *L, const char* field, int val);
int get_flags (lua_State *L, const flag_pair **arr);
const char *get_flag_key (const flag_pair *fp, int val);
void *Lmalloc (lua_State *L, size_t size);
#endif
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