36 lines
846 B
C++
36 lines
846 B
C++
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/***
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Copyright (C) 2021 J Reece Wilson (a/k/a "Reece"). All rights reserved.
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File: GBK.hpp
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Date: 2021-11-1
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Author: Reece
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***/
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#pragma once
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namespace Aurora::Locale::Encoding::GBK
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{
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static inline int GetLenGBKCodePoint(const AuUInt8 *in, AuUInt32 len)
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{
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if (len == 0) return 0;
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auto b = in[0];
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if (b >= 0x80)
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{
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if (len < 2) return 0;
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else return 2;
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}
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return 1;
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}
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static inline int CountGbk(const void *base, AuUInt32 length, bool bytes = false)
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{
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AuUInt32 i {}, cps {};
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for (i = 0; i < length; )
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{
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auto next = GetLenGBKCodePoint((const AuUInt8*)base + i, length - i);
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if (next == 0) return i;
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i += next;
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cps++;
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}
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return bytes ? i : cps;
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}
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}
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