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authorwiz <wiz@NetBSD.org>2003-12-21 11:18:25 +0000
committerwiz <wiz@NetBSD.org>2003-12-21 11:18:25 +0000
commit00c8cf496cfbe1659167342921c594c175dfaf4a (patch)
treec519ce0871f269f1a9905bcceac7442b82c62ee4 /bin/expr/expr.1
parent4eb81d63b4aebae7d7403104ba6ce5a98e65851b (diff)
Add some articles.
Diffstat (limited to 'bin/expr/expr.1')
-rw-r--r--bin/expr/expr.112
1 files changed, 6 insertions, 6 deletions
diff --git a/bin/expr/expr.1 b/bin/expr/expr.1
index bb9e879f76a..cb9ef4a2de1 100644
--- a/bin/expr/expr.1
+++ b/bin/expr/expr.1
@@ -1,4 +1,4 @@
-.\" $NetBSD: expr.1,v 1.24 2003/12/21 10:02:46 jdolecek Exp $
+.\" $NetBSD: expr.1,v 1.25 2003/12/21 11:18:25 wiz Exp $
.\"
.\" Copyright (c) 2000,2003 The NetBSD Foundation, Inc.
.\" All rights reserved.
@@ -173,16 +173,16 @@ by
.An Jaromir Dolecek
.Aq jdolecek@NetBSD.org .
.Sh NOTES
-Empty string
+The empty string
.Dq
-cannot be matched with intuitive:
+cannot be matched with the intuitive:
.Bd -literal -offset indent
expr '' : '$'
.Ed
.Pp
-The reason is the returned number of matched characters (zero)
-is indistinguishable from failed match, so this returns failure.
-To match empty string, use something like:
+The reason is that the returned number of matched characters (zero)
+is indistinguishable from a failed match, so this returns failure.
+To match the empty string, use something like:
.Bd -literal -offset indent
expr x'' : 'x$'
.Ed