52 lines
1.4 KiB
C
52 lines
1.4 KiB
C
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/****************************************************************
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* *
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* Copyright 2010 Fidelity Information Services, Inc *
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* *
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* This source code contains the intellectual property *
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* of its copyright holder(s), and is made available *
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* under a license. If you do not know the terms of *
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* the license, please stop and do not read further. *
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* *
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****************************************************************/
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#include "mdef.h"
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#include "error.h"
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#include "op.h"
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#include "patcode.h"
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#include "mvalconv.h"
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#ifdef UNICODE_SUPPORTED
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#include <wchar.h>
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#include "gtm_icu_api.h"
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#include "gtm_utf8.h"
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#endif
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GBLREF boolean_t badchar_inhibit;
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GBLREF boolean_t gtm_utf8_mode;
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GBLREF uint4 *pattern_typemask;
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/* Routine to compute the display width of a string */
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void op_fnzwidth(mval* src, mval* dst)
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{
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unsigned char *srctop, *srcptr, *nextptr;
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int width;
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MV_FORCE_STR(src);
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srcptr = (unsigned char *)src->str.addr;
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#ifdef UNICODE_SUPPORTED
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if (!gtm_utf8_mode)
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{
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#endif
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width = src->str.len;
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for (srctop = srcptr + src->str.len; srcptr < srctop; ++srcptr)
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{ /* All non-control characters are printable. Control characters are ignored (=0 width) in width calculations. */
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if ((pattern_typemask[*srcptr] & PATM_C))
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width -= 1;
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}
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#ifdef UNICODE_SUPPORTED
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} else
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width = gtm_wcswidth(srcptr, src->str.len, TRUE, 0); /* TRUE => strict checking of BADCHARs */
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#endif
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MV_FORCE_MVAL(dst, width);
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}
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