minix/lib/libc/gen/fnmatch.3
Ben Gras 2fe8fb192f Full switch to clang/ELF. Drop ack. Simplify.
There is important information about booting non-ack images in
docs/UPDATING. ack/aout-format images can't be built any more, and
booting clang/ELF-format ones is a little different. Updating to the
new boot monitor is recommended.

Changes in this commit:

	. drop boot monitor -> allowing dropping ack support
	. facility to copy ELF boot files to /boot so that old boot monitor
	  can still boot fairly easily, see UPDATING
	. no more ack-format libraries -> single-case libraries
	. some cleanup of OBJECT_FMT, COMPILER_TYPE, etc cases
	. drop several ack toolchain commands, but not all support
	  commands (e.g. aal is gone but acksize is not yet).
	. a few libc files moved to netbsd libc dir
	. new /bin/date as minix date used code in libc/
	. test compile fix
	. harmonize includes
	. /usr/lib is no longer special: without ack, /usr/lib plays no
	  kind of special bootstrapping role any more and bootstrapping
	  is done exclusively through packages, so releases depend even
	  less on the state of the machine making them now.
	. rename nbsd_lib* to lib*
	. reduce mtree
2012-02-14 14:52:02 +01:00

140 lines
3.9 KiB
Groff

.\" $NetBSD: fnmatch.3,v 1.22 2010/11/30 21:03:07 jruoho Exp $
.\"
.\" Copyright (c) 1989, 1991, 1993
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.\" This code is derived from software contributed to Berkeley by
.\" Guido van Rossum.
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.\" @(#)fnmatch.3 8.3 (Berkeley) 4/28/95
.\"
.Dd November 30, 2010
.Dt FNMATCH 3
.Os
.Sh NAME
.Nm fnmatch
.Nd match filename or pathname using shell glob rules
.Sh LIBRARY
.Lb libc
.Sh SYNOPSIS
.In fnmatch.h
.Ft int
.Fn fnmatch "const char *pattern" "const char *string" "int flags"
.Sh DESCRIPTION
The
.Fn fnmatch
function
matches patterns according to the globbing rules used by the shell.
It checks the string specified by the
.Fa string
argument to see if it matches the pattern specified by the
.Fa pattern
argument.
.Pp
The
.Fa flags
argument modifies the interpretation of
.Fa pattern
and
.Fa string .
The value of
.Fa flags
is the bitwise inclusive
.Tn OR
of any of the following
constants, which are defined in the include file
.Pa fnmatch.h .
.Bl -tag -width FNM_LEADING_DIRXX
.It Dv FNM_NOESCAPE
Normally, every occurrence of a backslash
.Pq Ql \e
followed by a character in
.Fa pattern
is replaced by that character.
This is done to negate any special meaning for the character.
If the
.Dv FNM_NOESCAPE
flag is set, a backslash character is treated as an ordinary character.
.It Dv FNM_PATHNAME
Slash characters in
.Fa string
must be explicitly matched by slashes in
.Fa pattern .
If this flag is not set, then slashes are treated as regular characters.
.It Dv FNM_PERIOD
Leading periods in strings match periods in patterns.
The definition of ``leading'' is related to the specification of
.Dv FNM_PATHNAME .
A period is always ``leading'' if it is the first character in
.Ar string .
Additionally, if
.Dv FNM_PATHNAME
is set,
a period is ``leading'' if it immediately follows a slash.
.It Dv FNM_LEADING_DIR
Ignore
.Dq /*
rest after successful
.Fa pattern
matching.
.It Dv FNM_CASEFOLD
The pattern is matched in a case-insensitive fashion.
.El
.Sh RETURN VALUES
The
.Fn fnmatch
function returns zero if
.Fa string
matches the pattern specified by
.Fa pattern ,
otherwise, it returns the value
.Dv FNM_NOMATCH .
.Sh SEE ALSO
.Xr sh 1 ,
.Xr glob 3 ,
.Xr regex 3 ,
.Xr glob 7
.Sh STANDARDS
The
.Fn fnmatch
function conforms to
.St -p1003.2-92 .
The
.Dv FNM_CASEFOLD
flag is a
.Nx
extension.
.Sh HISTORY
The
.Fn fnmatch
function first appeared in
.Bx 4.4 .
.Sh BUGS
The pattern
.Ql *
matches the empty string, even if
.Dv FNM_PATHNAME
is specified.