forked from GitHub/gf-core
54 lines
945 B
C
54 lines
945 B
C
#ifndef GU_UCS_H_
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#define GU_UCS_H_
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#include <gu/defs.h>
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#include <gu/exn.h>
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#include <gu/assert.h>
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#if defined(__STDC_ISO_10646__) && WCHAR_MAX >= 0x10FFFF
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#include <wchar.h>
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#define GU_UCS_WCHAR
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typedef wchar_t GuUCS;
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#else
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typedef int32_t GuUCS;
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#endif
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#define GU_UCS_MAX ((GuUCS)(0x10FFFF))
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bool
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gu_char_is_valid(char c);
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inline bool
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gu_ucs_valid(GuUCS ucs)
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{
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return ucs >= 0 && ucs <= GU_UCS_MAX;
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}
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inline GuUCS
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gu_char_ucs(char c)
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{
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gu_require(gu_char_is_valid(c));
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#ifdef CHAR_ASCII
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GuUCS u = (GuUCS) c;
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#else
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extern const uint8_t gu_ucs_ascii_reverse_[CHAR_MAX];
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GuUCS u = gu_ucs_ascii_reverse_[(unsigned char) c];
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#endif
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gu_ensure(u < 0x80);
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return u;
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}
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char
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gu_ucs_char(GuUCS uc, GuExn* err);
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size_t
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gu_str_to_ucs(const char* cbuf, size_t len, GuUCS* ubuf, GuExn* err);
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size_t
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gu_ucs_to_str(const GuUCS* ubuf, size_t len, char* cbuf, GuExn* err);
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extern GU_DECLARE_TYPE(GuUCSExn, abstract);
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#endif // GU_ISO10646_H_
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