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Changes to doc/grep_12.html
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From: |
Karl Berry |
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Subject: |
Changes to doc/grep_12.html |
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Date: |
Sun, 24 May 2009 18:43:13 +0000 |
CVSROOT: /web/grep
Module name: grep
Changes by: Karl Berry <karl> 09/05/24 18:43:01
Index: doc/grep_12.html
===================================================================
RCS file: doc/grep_12.html
diff -N doc/grep_12.html
--- doc/grep_12.html 23 Jan 2002 10:33:52 -0000 1.3
+++ /dev/null 1 Jan 1970 00:00:00 -0000
@@ -1,75 +0,0 @@
-<HTML>
-<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
-<!-- Created on January, 23 2002 by texi2html 1.64 -->
-<!--
-Written by: Lionel Cons <address@hidden> (original author)
- Karl Berry <address@hidden>
- Olaf Bachmann <address@hidden>
- and many others.
-Maintained by: Olaf Bachmann <address@hidden>
-Send bugs and suggestions to <address@hidden>
-
--->
-<HEAD>
-<TITLE>grep, print lines matching a pattern: 5.5 Basic vs Extended</TITLE>
-
-<META NAME="description" CONTENT="grep, print lines matching a pattern: 5.5
Basic vs Extended">
-<META NAME="keywords" CONTENT="grep, print lines matching a pattern: 5.5 Basic
vs Extended">
-<META NAME="resource-type" CONTENT="document">
-<META NAME="distribution" CONTENT="global">
-<META NAME="Generator" CONTENT="texi2html 1.64">
-
-</HEAD>
-
-<BODY LANG="" BGCOLOR="#FFFFFF" TEXT="#000000" LINK="#0000FF" VLINK="#800080"
ALINK="#FF0000">
-
-<A NAME="SEC12"></A>
-<TABLE CELLPADDING=1 CELLSPACING=1 BORDER=0>
-<TR><TD VALIGN="MIDDLE" ALIGN="LEFT">[<A HREF="grep_11.html#SEC11"> <
</A>]</TD>
-<TD VALIGN="MIDDLE" ALIGN="LEFT">[<A HREF="grep_13.html#SEC13"> > </A>]</TD>
-<TD VALIGN="MIDDLE" ALIGN="LEFT"> <TD VALIGN="MIDDLE" ALIGN="LEFT">[<A
HREF="grep_7.html#SEC7"> << </A>]</TD>
-<TD VALIGN="MIDDLE" ALIGN="LEFT">[<A HREF="grep_7.html#SEC7"> Up </A>]</TD>
-<TD VALIGN="MIDDLE" ALIGN="LEFT">[<A HREF="grep_13.html#SEC13"> >>
</A>]</TD>
-<TD VALIGN="MIDDLE" ALIGN="LEFT"> <TD VALIGN="MIDDLE" ALIGN="LEFT">
<TD VALIGN="MIDDLE" ALIGN="LEFT"> <TD VALIGN="MIDDLE"
ALIGN="LEFT"> <TD VALIGN="MIDDLE" ALIGN="LEFT">[<A
HREF="grep.html#SEC_Top">Top</A>]</TD>
-<TD VALIGN="MIDDLE" ALIGN="LEFT">[<A
HREF="grep_toc.html#SEC_Contents">Contents</A>]</TD>
-<TD VALIGN="MIDDLE" ALIGN="LEFT">[<A HREF="grep_21.html#SEC21">Index</A>]</TD>
-<TD VALIGN="MIDDLE" ALIGN="LEFT">[<A HREF="grep_abt.html#SEC_About"> ?
</A>]</TD>
-</TR></TABLE>
-<HR SIZE=1>
-<H2> 5.5 Basic vs Extended </H2>
-<!--docid::SEC12::-->
-<P>
-
-In basic regular expressions the metacharacters <SAMP>`?'</SAMP>,
<SAMP>`+'</SAMP>,
-<SAMP>`{'</SAMP>, <SAMP>`|'</SAMP>, <SAMP>`('</SAMP>, and <SAMP>`)'</SAMP>
lose their special meaning;
-instead use the backslashed versions <SAMP>`\?'</SAMP>, <SAMP>`\+'</SAMP>,
<SAMP>`\{'</SAMP>,
-<SAMP>`\|'</SAMP>, <SAMP>`\('</SAMP>, and <SAMP>`\)'</SAMP>.
-</P><P>
-
-<A NAME="IDX208"></A>
-Traditional <CODE>egrep</CODE> did not support the <SAMP>`{'</SAMP>
metacharacter,
-and some <CODE>egrep</CODE> implementations support <SAMP>`\{'</SAMP> instead,
so
-portable scripts should avoid <SAMP>`{'</SAMP> in <SAMP>`egrep'</SAMP>
patterns and
-should use <SAMP>`[{]'</SAMP> to match a literal <SAMP>`{'</SAMP>.
-</P><P>
-
-GNU <CODE>egrep</CODE> attempts to support traditional usage by
-assuming that <SAMP>`{'</SAMP> is not special if it would be the start of an
-invalid interval specification. For example, the shell command
-<SAMP>`egrep '{1''</SAMP> searches for the two-character string
<SAMP>`{1'</SAMP>
-instead of reporting a syntax error in the regular expression.
-POSIX.2 allows this behavior as an extension, but portable scripts
-should avoid it.
-</P><P>
-
-<A NAME="Usage"></A>
-<HR SIZE=1>
-<BR>
-<FONT SIZE="-1">
-This document was generated
-by <I>root</I> on <I>January, 23 2002</I>
-using <A HREF="http://www.mathematik.uni-kl.de/~obachman/Texi2html
-"><I>texi2html</I></A>
-
-</BODY>
-</HTML>
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