152 lines
4.1 KiB
Groff
152 lines
4.1 KiB
Groff
.\" Copyright (c) 1989, 1991, 1993
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.\" The Regents of the University of California. All rights reserved.
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.\"
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.\" This code is derived from software contributed to Berkeley by
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.\" Guido van Rossum.
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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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.\" 4. Neither the name of the University nor the names of its contributors
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.\" may be used to endorse or promote products derived from this software
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.\" without specific prior written permission.
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.\"
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.\" THIS SOFTWARE IS PROVIDED BY THE REGENTS 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 REGENTS 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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.\" @(#)fnmatch.3 8.3 (Berkeley) 4/28/95
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.\" $FreeBSD$
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.\"
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.Dd July 18, 2004
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.Dt FNMATCH 3
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.Os
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.Sh NAME
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.Nm fnmatch
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.Nd test whether a filename or pathname matches a shell-style pattern
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.Sh LIBRARY
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.Lb libc
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.Sh SYNOPSIS
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.In fnmatch.h
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.Ft int
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.Fn fnmatch "const char *pattern" "const char *string" "int flags"
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.Sh DESCRIPTION
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The
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.Fn fnmatch
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function
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matches patterns according to the rules used by the shell.
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It checks the string specified by the
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.Fa string
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argument to see if it matches the pattern specified by the
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.Fa pattern
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argument.
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.Pp
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The
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.Fa flags
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argument modifies the interpretation of
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.Fa pattern
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and
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.Fa string .
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The value of
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.Fa flags
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is the bitwise inclusive
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.Tn OR
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of any of the following
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constants, which are defined in the include file
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.In fnmatch.h .
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.Bl -tag -width FNM_PATHNAME
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.It Dv FNM_NOESCAPE
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Normally, every occurrence of a backslash
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.Pq Ql \e
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followed by a character in
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.Fa pattern
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is replaced by that character.
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This is done to negate any special meaning for the character.
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If the
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.Dv FNM_NOESCAPE
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flag is set, a backslash character is treated as an ordinary character.
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.It Dv FNM_PATHNAME
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Slash characters in
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.Fa string
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must be explicitly matched by slashes in
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.Fa pattern .
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If this flag is not set, then slashes are treated as regular characters.
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.It Dv FNM_PERIOD
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Leading periods in
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.Fa string
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must be explicitly matched by periods in
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.Fa pattern .
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If this flag is not set, then leading periods are treated as regular
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characters.
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The definition of
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.Dq leading
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is related to the specification of
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.Dv FNM_PATHNAME .
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A period is always
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.Dq leading
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if it is the first character in
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.Fa string .
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Additionally, if
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.Dv FNM_PATHNAME
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is set,
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a period is
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leading
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if it immediately follows a slash.
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.It Dv FNM_LEADING_DIR
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Ignore
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.Dq Li /*
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rest after successful
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.Fa pattern
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matching.
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.It Dv FNM_CASEFOLD
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Ignore case distinctions in both the
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.Fa pattern
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and the
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.Fa string .
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.El
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.Sh RETURN VALUES
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The
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.Fn fnmatch
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function returns zero if
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.Fa string
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matches the pattern specified by
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.Fa pattern ,
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otherwise, it returns the value
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.Dv FNM_NOMATCH .
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.Sh SEE ALSO
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.Xr sh 1 ,
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.Xr glob 3 ,
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.Xr regex 3
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.Sh STANDARDS
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The current implementation of the
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.Fn fnmatch
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function
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.Em does not
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conform to
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.St -p1003.2 .
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Collating symbol expressions, equivalence class expressions and
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character class expressions are not supported.
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.Sh HISTORY
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The
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.Fn fnmatch
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function first appeared in
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.Bx 4.4 .
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.Sh BUGS
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The pattern
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.Ql *
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matches the empty string, even if
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.Dv FNM_PATHNAME
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is specified.
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