1 /* 2 ** String handling. 3 ** Copyright (C) 2005-2014 Mike Pall. See Copyright Notice in luajit.h 4 */ 5 6 #ifndef _LJ_STR_H 7 #define _LJ_STR_H 8 9 #include <stdarg.h> 10 11 #include "lj_obj.h" 12 13 /* String interning. */ 14 LJ_FUNC int32_t LJ_FASTCALL lj_str_cmp(GCstr *a, GCstr *b); 15 LJ_FUNC void lj_str_resize(lua_State *L, MSize newmask); 16 LJ_FUNCA GCstr *lj_str_new(lua_State *L, const char *str, size_t len); 17 LJ_FUNC void LJ_FASTCALL lj_str_free(global_State *g, GCstr *s); 18 19 #define lj_str_newz(L, s) (lj_str_new(L, s, strlen(s))) 20 #define lj_str_newlit(L, s) (lj_str_new(L, "" s, sizeof(s)-1)) 21 22 /* Type conversions. */ 23 LJ_FUNC size_t LJ_FASTCALL lj_str_bufnum(char *s, cTValue *o); 24 LJ_FUNC char * LJ_FASTCALL lj_str_bufint(char *p, int32_t k); 25 LJ_FUNCA GCstr * LJ_FASTCALL lj_str_fromnum(lua_State *L, const lua_Number *np); 26 LJ_FUNC GCstr * LJ_FASTCALL lj_str_fromint(lua_State *L, int32_t k); 27 LJ_FUNCA GCstr * LJ_FASTCALL lj_str_fromnumber(lua_State *L, cTValue *o); 28 29 #define LJ_STR_INTBUF (1+10) 30 #define LJ_STR_NUMBUF LUAI_MAXNUMBER2STR 31 32 /* String formatting. */ 33 LJ_FUNC const char *lj_str_pushvf(lua_State *L, const char *fmt, va_list argp); 34 LJ_FUNC const char *lj_str_pushf(lua_State *L, const char *fmt, ...) 35 #if defined(__GNUC__) 36 __attribute__ ((format (printf, 2, 3))) 37 #endif 38 ; 39 40 /* Resizable string buffers. Struct definition in lj_obj.h. */ 41 LJ_FUNC char *lj_str_needbuf(lua_State *L, SBuf *sb, MSize sz); 42 43 #define lj_str_initbuf(sb) ((sb)->buf = NULL, (sb)->sz = 0) 44 #define lj_str_resetbuf(sb) ((sb)->n = 0) 45 #define lj_str_resizebuf(L, sb, size) \ 46 ((sb)->buf = (char *)lj_mem_realloc(L, (sb)->buf, (sb)->sz, (size)), \ 47 (sb)->sz = (size)) 48 #define lj_str_freebuf(g, sb) lj_mem_free(g, (void *)(sb)->buf, (sb)->sz) 49 50 #endif 51