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29 lines
788 B
C
29 lines
788 B
C
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#ifndef DYNSJIS_H
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#define DYNSJIS_H
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// dynsjis.h
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// 6/11/2015 jichi
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namespace dynsjis {
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inline bool isleadbyte(unsigned char ch)
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{ return ch > 127 && (ch < 0xa1 || ch > 0xdf); }
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inline bool isleadchar(unsigned int ch)
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{ return isleadbyte((ch >> 8) & 0xff); }
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const char *nextchar(const char *s);
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inline char *nextchar(char *s)
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{ return const_cast<char *>(nextchar(static_cast<const char *>(s))); }
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inline bool isleadstr(const char *s) // return true if the first character of the string is widechar
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{ return nextchar(s) - s == 2; }
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const char *prevchar(const char *s, const char *begin = nullptr);
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inline char *prevchar(char *s, const char *begin = nullptr)
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{ return const_cast<char *>(prevchar(static_cast<const char *>(s), begin)); }
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} // namespace dynsjis
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#endif // DYNSJIS_H
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