28 lines
852 B
C
28 lines
852 B
C
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// CaseMap.h -- Header for the unicode case mapping routines for locale 0x0409
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#ifndef __CASEMAP_H__
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#define __CASEMAP_H__
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/*
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These routines implement the case mapping defined for Unicode in the
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US English locale. The implementation does not rely on operating system
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facilities and is therefore portable. We use these interfaces to do case
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insensitive comparisons in our file-system B-Trees.
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*/
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WCHAR WC_To_0x0409_Upper(WCHAR wc); // Maps one Unicode code point to upper case.
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WCHAR WC_To_0x0409_Lower(WCHAR wc); // Maps one Unicode code point to lower case.
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inline BOOL Is_WC_Letter(WCHAR wc)
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{
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return (wc != WC_To_0x0409_Upper(wc) || wc != WC_To_0x0409_Lower(wc));
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}
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// wcsicmp_0x0409 is a case insensitive Unicode string comparison routine.
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INT wcsicmp_0x0409(const WCHAR * pwcLeft, const WCHAR *pwcRight);
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#endif // __CASEMAP_H__
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