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98 lines
2.3 KiB
98 lines
2.3 KiB
/***
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*ismbprn.c - Test character for display character (MBCS)
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*
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* Copyright (c) 1985-1994, Microsoft Corporation. All rights reserved.
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*
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*Purpose:
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* Test character for display character (MBCS)
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*
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*Revision History:
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* 11-19-92 KRS Ported from 16-bit sources.
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* 09-24-93 CFW Merge _MBCS_OS and _KANJI.
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* 09-29-93 CFW Use new generic _ismbbkprint.
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* 10-05-93 GJF Replaced _CRTAPI1 with __cdecl.
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* 04-12-94 CFW Make function generic.
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* 04-18-94 CFW Use _ALPHA rather than _UPPER|_LOWER.
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* 04-29-94 CFW Place c in char array.
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* 05-19-94 CFW Enable non-Win32.
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*
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*******************************************************************************/
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#ifdef _MBCS
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#if defined(_WIN32) && !defined(_POSIX_)
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#include <windows.h>
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#include <awint.h>
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#endif /* _WIN32 */
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#include <cruntime.h>
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#include <ctype.h>
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#include <mbdata.h>
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#include <mbctype.h>
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#include <mbstring.h>
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/***
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* _ismbcprint - Test character for display character (MBCS)
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*
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*Purpose:
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* Test if the character is a display character.
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* Handles MBCS chars correctly.
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*
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* Note: Use test against 0x00FF to ensure that we don't
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* call SBCS routine with a two-byte value.
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*
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*Entry:
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* unsigned int c = character to test
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*
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*Exit:
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* Returns TRUE if character is display character, else FALSE
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*
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*Exceptions:
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*
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*******************************************************************************/
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int __cdecl _ismbcprint(
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unsigned int c
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)
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{
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if (c > 0x00FF)
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{
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#if defined(_WIN32) && !defined(_POSIX_)
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char buf[2];
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unsigned short ctype[2] = {0};
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buf[0] = (c >> 8) & 0xFF;
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buf[1] = c & 0xFF;
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/* return FALSE if not in supported MB code page */
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if (__mbcodepage == 0)
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return 0;
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/*
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* Since 'c' could be two one-byte MB chars, we need room in the
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* ctype return array to handle this. In this case, the
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* second word in the return array will be non-zero.
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*/
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if (__crtGetStringTypeA (CT_CTYPE1, buf,
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2, ctype, __mbcodepage, __mblcid) == 0)
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return 0;
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/* ensure single MB character and test for type */
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return (ctype[1] == 0 && ctype[0] & (_BLANK|_PUNCT|_ALPHA|_DIGIT));
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#else /* _WIN32 */
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return _ismbcgraph(c);
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#endif /* _WIN32 */
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} else
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return _ismbbprint(c);
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}
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#endif /* _MBCS */
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