lj_strscan.h (1088B)
1 /* 2 ** String scanning. 3 ** Copyright (C) 2005-2016 Mike Pall. See Copyright Notice in luajit.h 4 */ 5 6 #ifndef _LJ_STRSCAN_H 7 #define _LJ_STRSCAN_H 8 9 #include "lj_obj.h" 10 11 /* Options for accepted/returned formats. */ 12 #define STRSCAN_OPT_TOINT 0x01 /* Convert to int32_t, if possible. */ 13 #define STRSCAN_OPT_TONUM 0x02 /* Always convert to double. */ 14 #define STRSCAN_OPT_IMAG 0x04 15 #define STRSCAN_OPT_LL 0x08 16 #define STRSCAN_OPT_C 0x10 17 18 /* Returned format. */ 19 typedef enum { 20 STRSCAN_ERROR, 21 STRSCAN_NUM, STRSCAN_IMAG, 22 STRSCAN_INT, STRSCAN_U32, STRSCAN_I64, STRSCAN_U64, 23 } StrScanFmt; 24 25 LJ_FUNC StrScanFmt lj_strscan_scan(const uint8_t *p, TValue *o, uint32_t opt); 26 LJ_FUNC int LJ_FASTCALL lj_strscan_num(GCstr *str, TValue *o); 27 #if LJ_DUALNUM 28 LJ_FUNC int LJ_FASTCALL lj_strscan_number(GCstr *str, TValue *o); 29 #else 30 #define lj_strscan_number(s, o) lj_strscan_num((s), (o)) 31 #endif 32 33 /* Check for number or convert string to number/int in-place (!). */ 34 static LJ_AINLINE int lj_strscan_numberobj(TValue *o) 35 { 36 return tvisnumber(o) || (tvisstr(o) && lj_strscan_number(strV(o), o)); 37 } 38 39 #endif