ee446de0b1
class. This is necessary in order to implement tr(1) efficiently in multibyte locales, since the brute force method of finding all characters in a class is infeasible with a 32-bit (or wider) wchar_t.
59 lines
1.9 KiB
Groff
59 lines
1.9 KiB
Groff
.\"
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.\" Copyright (c) 2004 Tim J. Robbins
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.\" All rights reserved.
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.\"
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.\" Redistribution and use in source and binary forms, with or without
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.\" modification, are permitted provided that the following conditions
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.\" are met:
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.\" 1. Redistributions of source code must retain the above copyright
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.\" notice, this list of conditions and the following disclaimer.
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.\" 2. Redistributions in binary form must reproduce the above copyright
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.\" notice, this list of conditions and the following disclaimer in the
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.\" documentation and/or other materials provided with the distribution.
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.\"
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.\" THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
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.\" ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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.\" IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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.\" ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
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.\" FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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.\" DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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.\" OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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.\" HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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.\" LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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.\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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.\" SUCH DAMAGE.
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.\"
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.\" $FreeBSD$
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.\"
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.Dd July 8, 2004
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.Dt NEXTWCTYPE 3
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.Os
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.Sh NAME
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.Nm nextwctype
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.Nd "iterate through character classes"
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.Sh LIBRARY
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.Lb libc
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.Sh SYNOPSIS
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.In wctype.h
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.Ft wint_t
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.Fo nextwctype
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.Fa "wint_t ch" "wctype_t wct"
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.Fc
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.Sh DESCRIPTION
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The
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.Fn nextwctype
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function determines the next character after
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.Fa ch
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that is a member of character class
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.Fa wct .
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If
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.Fa ch
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is \-1, the search begins at the first member of
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.Fa wct .
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.Sh RETURN VALUES
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The
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.Fn nextwctype
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functions returns the next character, or \-1 if there are no more.
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.Sh SEE ALSO
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.Xr wctype 3
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