Add glob(7) and refer to it. OK jmc@ sobrado@

2 files changed, 143 insertions, 4 deletions

diff --git a/share/man/man7/Makefile b/share/man/man7/Makefile
index b881c334989..29db1650d7f 100644
--- a/share/man/man7/Makefile
+++ b/share/man/man7/Makefile
@@ -1,11 +1,11 @@
-#	$OpenBSD: Makefile,v 1.13 2005/05/12 09:12:57 jmc Exp $
+#	$OpenBSD: Makefile,v 1.14 2009/03/05 15:13:30 millert Exp $
 #	$NetBSD: Makefile,v 1.6 1994/12/22 10:50:05 cgd Exp $
 
 # missing: eqnchar.7 man.7 ms.7 term.7
 
-MAN=	ascii.7 environ.7 hier.7 hostname.7 intro.7 kgdb.7 library-specs.7 \
-	mailaddr.7 mdoc.7 mdoc.samples.7 mirroring-ports.7 operator.7 \
-	packages.7 packages-specs.7 ports.7 script.7 securelevel.7
+MAN=	ascii.7 environ.7 glob.7 hier.7 hostname.7 intro.7 kgdb.7 \
+	library-specs.7 mailaddr.7 mdoc.7 mdoc.samples.7 mirroring-ports.7 \
+	operator.7 packages.7 packages-specs.7 ports.7 script.7 securelevel.7
 MLINKS=	mdoc.7 mandoc.7 mdoc.samples.7 mandoc.samples.7 \
 	mirroring-ports.7 mirror-maker.7
 
diff --git a/share/man/man7/glob.7 b/share/man/man7/glob.7
new file mode 100644
index 00000000000..ab6067b8ded
--- /dev/null
+++ b/share/man/man7/glob.7
@@ -0,0 +1,139 @@
+.\"	$OpenBSD: glob.7,v 1.1 2009/03/05 15:13:30 millert Exp $
+.\"
+.\" Copyright (c) 2009 Todd C. Miller <Todd.Miller@courtesan.com>
+.\"
+.\" Permission to use, copy, modify, and distribute this software for any
+.\" purpose with or without fee is hereby granted, provided that the above
+.\" copyright notice and this permission notice appear in all copies.
+.\"
+.\" THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
+.\" WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
+.\" MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
+.\" ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+.\" WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
+.\" ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
+.\" OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+.\"
+.\"
+.Dd $Mdocdate: March 5 2009 $
+.Dt GLOB 7
+.Os
+.Sh NAME
+.Nm glob
+.Nd shell-style pattern matching
+.Sh DESCRIPTION
+Globbing characters
+.Pq wildcards
+are special characters used to perform pattern matching of pathnames and
+command arguments in the
+.Xr csh 1 ,
+.Xr ksh 1 ,
+and
+.Xr sh 1
+shells as well as
+the C library functions
+.Xr fnmatch 3
+and
+.Xr glob 3 .
+A glob pattern is a word containing one or more unquoted
+.Ql \&?
+or
+.Ql *
+characters, or
+.Dq [..]
+sequences.
+.Pp
+Globs should not be confused with the more powerful
+regular expressions used by programs such as
+.Xr grep 1 .
+While there is some overlap in the special characters used in regular
+expressions and globs, their meaning is different.
+.Pp
+The pattern elements have the following meaning:
+.Bl -tag -width Ds
+.It \&?
+Matches any single character.
+.It \&*
+Matches any sequence of zero or more characters.
+.It [..]
+Matches any of the characters inside the brackets.
+Ranges of characters can be specified by separating two characters by a
+.Ql -
+(e.g.\&
+.Dq [a0-9]
+matches the letter
+.Sq a
+or any digit).
+In order to represent itself, a
+.Ql -
+must either be quoted or the first or last character in the character list.
+Similarly, a
+.Ql \&]
+must be quoted or the first character in the list if it is to represent itself
+instead of the end of the list.
+Also, a
+.Ql \&!
+appearing at the start of the list has special meaning (see below), so to
+represent itself it must be quoted or appear later in the list.
+.Pp
+Within a bracket expression, the name of a
+.Em character class
+enclosed in
+.Sq [:
+and
+.Sq :]
+stands for the list of all characters belonging to that class.
+Supported character classes:
+.Bl -column "xdigit" "xdigit" "xdigit" -offset indent
+.It Li "alnum" Ta "cntrl" Ta "lower" Ta "space"
+.It Li "alpha" Ta "digit" Ta "print" Ta "upper"
+.It Li "blank" Ta "graph" Ta "punct" Ta "xdigit"
+.El
+.Pp
+These match characters using the macros specified in
+.Xr ctype 3 .
+A character class may not be used as an endpoint of a range.
+.It [!..]
+Like [..],
+except it matches any character not inside the brackets.
+.El
+.Pp
+Note that when matching a pathname, the path separator
+.Ql / ,
+is not matched by a
+.Ql \&? ,
+or
+.Ql * ,
+character or by a
+.Dq [..]
+sequence.
+Thus,
+.Pa /usr/*/*/X11
+would match
+.Pa /usr/X11R6/lib/X11
+and
+.Pa /usr/X11R6/include/X11
+while
+.Pa /usr/*/X11
+would not match either.
+Likewise,
+.Pa /usr/*/bin
+would match
+.Pa /usr/local/bin
+but not
+.Pa /usr/bin .
+.Sh SEE ALSO
+.Xr fnmatch 3 ,
+.Xr glob 3 ,
+.Xr re_format 7
+.Sh HISTORY
+In early versions of
+.Ux ,
+the shell did not do pattern expansion itself.
+A dedicated program,
+.Pa /etc/glob ,
+was used to perform the expansion and pass the results to a command.
+In
+.At v7 ,
+with the introduction of the Bourne shell,
+this functionality was incorportated into the shell itself.