-@c Copyright (C) 1994, 1996, 1998, 2000, 2001, 2003, 2004, 2005, 2006
-@c Free Software Foundation, Inc.
-
+@c Copyright (C) 1994, 1996, 1998, 2000, 2001, 2003, 2004, 2005, 2006, 2007,
+@c 2009, 2010 Free Software Foundation, Inc.
+@c
@c Permission is granted to copy, distribute and/or modify this document
-@c under the terms of the GNU Free Documentation License, Version 1.2 or
+@c under the terms of the GNU Free Documentation License, Version 1.3 or
@c any later version published by the Free Software Foundation; with no
@c Invariant Sections, with no Front-Cover Texts, and with no Back-Cover
@c Texts. A copy of the license is included in the ``GNU Free
@c Documentation License'' file as part of this distribution.
+@c this regular expression description is for: generic
+
@menu
* awk regular expression syntax::
* egrep regular expression syntax::
@item At the end of a regular expression
-@item Before an close-group, signified by
+@item Before a close-group, signified by
@samp{\)}
@item Before the alternation operator @samp{\|}
@item At the end of a regular expression
-@item Before an close-group, signified by
+@item Before a close-group, signified by
@samp{\)}
@item Before the alternation operator @samp{\|}
@item At the end of a regular expression
-@item Before an close-group, signified by
+@item Before a close-group, signified by
@samp{\)}
@item Before a newline
The characters @samp{^} and @samp{$} always represent the beginning and end of a string respectively, except within square brackets. Within brackets, @samp{^} can be used to invert the membership of the character class being specified.
-@samp{*}, @samp{+} and @samp{?} are special at any point in a regular expression except the following places, where they are illegal:
+@samp{*}, @samp{+} and @samp{?} are special at any point in a regular expression except the following places, where they are not allowed:
@enumerate
@item At the beginning of a regular expression
The characters @samp{^} and @samp{$} always represent the beginning and end of a string respectively, except within square brackets. Within brackets, @samp{^} can be used to invert the membership of the character class being specified.
-@samp{*}, @samp{+} and @samp{?} are special at any point in a regular expression except the following places, where they are illegal:
+@samp{*}, @samp{+} and @samp{?} are special at any point in a regular expression except the following places, where they are not allowed:
@enumerate
@item At the beginning of a regular expression
@item At the end of a regular expression
-@item Before an close-group, signified by
+@item Before a close-group, signified by
@samp{\)}
@end enumerate
@node sed regular expression syntax
@subsection @samp{sed} regular expression syntax
-This is a synonym for ed.
+This is a synonym for ed.
\ No newline at end of file