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annotate third_party/luajit/src/lj_strscan.h @ 195:f8f5004a920a

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Merging back hg-web-tip
author MrJuneJune <me@mrjunejune.com>
date Tue, 27 Jan 2026 06:51:44 -0800
parents 94705b5986b3
children
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178
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1 /*
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2 ** String scanning.
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3 ** Copyright (C) 2005-2023 Mike Pall. See Copyright Notice in luajit.h
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4 */
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5
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6 #ifndef _LJ_STRSCAN_H
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7 #define _LJ_STRSCAN_H
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8
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9 #include "lj_obj.h"
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10
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11 /* Options for accepted/returned formats. */
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12 #define STRSCAN_OPT_TOINT 0x01 /* Convert to int32_t, if possible. */
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13 #define STRSCAN_OPT_TONUM 0x02 /* Always convert to double. */
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14 #define STRSCAN_OPT_IMAG 0x04
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15 #define STRSCAN_OPT_LL 0x08
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16 #define STRSCAN_OPT_C 0x10
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17
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18 /* Returned format. */
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19 typedef enum {
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20 STRSCAN_ERROR,
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21 STRSCAN_NUM, STRSCAN_IMAG,
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22 STRSCAN_INT, STRSCAN_U32, STRSCAN_I64, STRSCAN_U64,
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23 } StrScanFmt;
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24
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25 LJ_FUNC StrScanFmt lj_strscan_scan(const uint8_t *p, MSize len, TValue *o,
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26 uint32_t opt);
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27 LJ_FUNC int LJ_FASTCALL lj_strscan_num(GCstr *str, TValue *o);
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28 #if LJ_DUALNUM
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29 LJ_FUNC int LJ_FASTCALL lj_strscan_number(GCstr *str, TValue *o);
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30 #else
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31 #define lj_strscan_number(s, o) lj_strscan_num((s), (o))
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32 #endif
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33
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34 /* Check for number or convert string to number/int in-place (!). */
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35 static LJ_AINLINE int lj_strscan_numberobj(TValue *o)
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36 {
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37 return tvisnumber(o) || (tvisstr(o) && lj_strscan_number(strV(o), o));
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38 }
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39
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40 #endif