41f72ab4d7
The tow* functions use an included case conversion table which can be generated from Unicode data. The isw* functions use a character categories table (provided by categories.c) which can be generated from Unicode data. Delegation between current-locale and specific-locale-dependent functions was reverted towards the generic locale-dependent functions (*_l.c); this is however only relevant on systems with non-Unicode wide character locales, thus not on Cygwin.
21 lines
600 B
C
21 lines
600 B
C
/* Modified (m) 2017 Thomas Wolff: revise Unicode and locale/wchar handling */
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#include <_ansi.h>
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#include <ctype.h>
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#include <wctype.h>
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#include "local.h"
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#include "categories.h"
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int
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iswlower_l (wint_t c, struct __locale_t *locale)
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{
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#ifdef _MB_CAPABLE
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c = _jp2uc_l (c, locale);
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// The wide-character class "lower" contains at least those characters wc
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// which are equal to towlower(wc) and different from towupper(wc).
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enum category cat = category (c);
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return cat == CAT_Ll || (cat == CAT_LC && towlower (c) == c);
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#else
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return c < 0x100 ? islower (c) : 0;
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#endif /* _MB_CAPABLE */
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}
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