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Changes to grep/manual/html_node/Context-Line-Control.html,v
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From: |
Jim Meyering |
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Subject: |
Changes to grep/manual/html_node/Context-Line-Control.html,v |
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Date: |
Wed, 22 Mar 2023 22:55:25 -0400 (EDT) |
CVSROOT: /webcvs/grep
Module name: grep
Changes by: Jim Meyering <meyering> 23/03/22 22:55:22
Index: html_node/Context-Line-Control.html
===================================================================
RCS file: /webcvs/grep/grep/manual/html_node/Context-Line-Control.html,v
retrieving revision 1.33
retrieving revision 1.34
diff -u -b -r1.33 -r1.34
--- html_node/Context-Line-Control.html 3 Sep 2022 19:33:14 -0000 1.33
+++ html_node/Context-Line-Control.html 23 Mar 2023 02:55:21 -0000 1.34
@@ -1,11 +1,11 @@
-<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN"
"http://www.w3.org/TR/html4/loose.dtd";>
+<!DOCTYPE html>
<html>
-<!-- Created by GNU Texinfo 6.8, https://www.gnu.org/software/texinfo/ -->
+<!-- Created by GNU Texinfo 7.0dev, https://www.gnu.org/software/texinfo/ -->
<head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8">
<!-- This manual is for grep, a pattern matching engine.
-Copyright (C) 1999-2002, 2005, 2008-2022 Free Software Foundation,
+Copyright © 1999-2002, 2005, 2008-2023 Free Software Foundation,
Inc.
Permission is granted to copy, distribute and/or modify this document
@@ -14,10 +14,10 @@
Invariant Sections, with no Front-Cover Texts, and with no Back-Cover
Texts. A copy of the license is included in the section entitled
"GNU Free Documentation License". -->
-<title>Context Line Control (GNU Grep 3.8)</title>
+<title>Context Line Control (GNU Grep 3.10)</title>
-<meta name="description" content="Context Line Control (GNU Grep 3.8)">
-<meta name="keywords" content="Context Line Control (GNU Grep 3.8)">
+<meta name="description" content="Context Line Control (GNU Grep 3.10)">
+<meta name="keywords" content="Context Line Control (GNU Grep 3.10)">
<meta name="resource-type" content="document">
<meta name="distribution" content="global">
<meta name="Generator" content="makeinfo">
@@ -31,21 +31,9 @@
<link href="Output-Line-Prefix-Control.html" rel="prev" title="Output Line
Prefix Control">
<style type="text/css">
<!--
-a.copiable-anchor {visibility: hidden; text-decoration: none; line-height: 0em}
-a.summary-letter {text-decoration: none}
-blockquote.indentedblock {margin-right: 0em}
-div.display {margin-left: 3.2em}
-div.example {margin-left: 3.2em}
-kbd {font-style: oblique}
-pre.display {font-family: inherit}
-pre.format {font-family: inherit}
-pre.menu-comment {font-family: serif}
-pre.menu-preformatted {font-family: serif}
-span.nolinebreak {white-space: nowrap}
-span.roman {font-family: initial; font-weight: normal}
-span.sansserif {font-family: sans-serif; font-weight: normal}
-span:hover a.copiable-anchor {visibility: visible}
-ul.no-bullet {list-style: none}
+a.copiable-link {visibility: hidden; text-decoration: none; line-height: 0em}
+span:hover a.copiable-link {visibility: visible}
+ul.mark-bullet {list-style-type: disc}
-->
</style>
<link rel="stylesheet" type="text/css"
href="https://www.gnu.org/software/gnulib/manual.css";>
@@ -54,84 +42,89 @@
</head>
<body lang="en">
-<div class="subsection" id="Context-Line-Control">
-<div class="header">
+<div class="subsection-level-extent" id="Context-Line-Control">
+<div class="nav-panel">
<p>
Next: <a href="File-and-Directory-Selection.html" accesskey="n"
rel="next">File and Directory Selection</a>, Previous: <a
href="Output-Line-Prefix-Control.html" accesskey="p" rel="prev">Output Line
Prefix Control</a>, Up: <a href="Command_002dline-Options.html" accesskey="u"
rel="up">Command-line Options</a> [<a href="index.html#SEC_Contents"
title="Table of contents" rel="contents">Contents</a>][<a href="Index.html"
title="Index" rel="index">Index</a>]</p>
</div>
<hr>
-<span id="Context-Line-Control-1"></span><h4 class="subsection">2.1.5 Context
Line Control</h4>
+<h4 class="subsection" id="Context-Line-Control-1"><span>2.1.5 Context Line
Control<a class="copiable-link" href="#Context-Line-Control-1">
¶</a></span></h4>
-<span id="index-context-lines-1"></span>
-<p><em>Context lines</em> are non-matching lines that are near a matching line.
+<a class="index-entry-id" id="index-context-lines-1"></a>
+<p><em class="dfn">Context lines</em> are non-matching lines that are near a
matching line.
They are output only if one of the following options are used.
Regardless of how these options are set,
-<code>grep</code> never outputs any given line more than once.
-If the <samp>-o</samp> (<samp>--only-matching</samp>) option is specified,
+<code class="command">grep</code> never outputs any given line more than once.
+If the <samp class="option">-o</samp> (<samp
class="option">--only-matching</samp>) option is specified,
these options have no effect and a warning is given upon their use.
</p>
-<dl compact="compact">
-<dt id='index-_002dA'><span><samp>-A <var>num</var></samp><a
href='#index-_002dA' class='copiable-anchor'> ¶</a></span></dt>
-<dt><span><samp>--after-context=<var>num</var></samp></span></dt>
-<dd><span id="index-_002d_002dafter_002dcontext"></span>
-<span id="index-after-context"></span>
-<span id="index-context-lines_002c-after-match"></span>
-<p>Print <var>num</var> lines of trailing context after matching lines.
+<dl class="table">
+<dt><samp class="option">-A <var class="var">num</var></samp></dt>
+<dt><samp class="option">--after-context=<var class="var">num</var></samp></dt>
+<dd><a class="index-entry-id" id="index-_002dA"></a>
+<a class="index-entry-id" id="index-_002d_002dafter_002dcontext"></a>
+<a class="index-entry-id" id="index-after-context"></a>
+<a class="index-entry-id" id="index-context-lines_002c-after-match"></a>
+<p>Print <var class="var">num</var> lines of trailing context after matching
lines.
</p>
</dd>
-<dt id='index-_002dB'><span><samp>-B <var>num</var></samp><a
href='#index-_002dB' class='copiable-anchor'> ¶</a></span></dt>
-<dt><span><samp>--before-context=<var>num</var></samp></span></dt>
-<dd><span id="index-_002d_002dbefore_002dcontext"></span>
-<span id="index-before-context"></span>
-<span id="index-context-lines_002c-before-match"></span>
-<p>Print <var>num</var> lines of leading context before matching lines.
+<dt><samp class="option">-B <var class="var">num</var></samp></dt>
+<dt><samp class="option">--before-context=<var
class="var">num</var></samp></dt>
+<dd><a class="index-entry-id" id="index-_002dB"></a>
+<a class="index-entry-id" id="index-_002d_002dbefore_002dcontext"></a>
+<a class="index-entry-id" id="index-before-context"></a>
+<a class="index-entry-id" id="index-context-lines_002c-before-match"></a>
+<p>Print <var class="var">num</var> lines of leading context before matching
lines.
</p>
</dd>
-<dt id='index-_002dC'><span><samp>-C <var>num</var></samp><a
href='#index-_002dC' class='copiable-anchor'> ¶</a></span></dt>
-<dt><span><samp>-<var>num</var></samp></span></dt>
-<dt><span><samp>--context=<var>num</var></samp></span></dt>
-<dd><span id="index-_002d_002dcontext"></span>
-<span id="index-_002dnum"></span>
-<span id="index-context-lines-2"></span>
-<p>Print <var>num</var> lines of leading and trailing output context.
+<dt><samp class="option">-C <var class="var">num</var></samp></dt>
+<dt><samp class="option">-<var class="var">num</var></samp></dt>
+<dt><samp class="option">--context=<var class="var">num</var></samp></dt>
+<dd><a class="index-entry-id" id="index-_002dC"></a>
+<a class="index-entry-id" id="index-_002d_002dcontext"></a>
+<a class="index-entry-id" id="index-_002dnum"></a>
+<a class="index-entry-id" id="index-context-lines-2"></a>
+<p>Print <var class="var">num</var> lines of leading and trailing output
context.
</p>
</dd>
-<dt
id='index-_002d_002dgroup_002dseparator'><span><samp>--group-separator=<var>string</var></samp><a
href='#index-_002d_002dgroup_002dseparator' class='copiable-anchor'>
¶</a></span></dt>
-<dd><span id="index-group-separator"></span>
-<p>When <samp>-A</samp>, <samp>-B</samp> or <samp>-C</samp> are in use,
-print <var>string</var> instead of <samp>--</samp> between groups of lines.
+<dt><samp class="option">--group-separator=<var
class="var">string</var></samp></dt>
+<dd><a class="index-entry-id" id="index-_002d_002dgroup_002dseparator"></a>
+<a class="index-entry-id" id="index-group-separator"></a>
+<p>When <samp class="option">-A</samp>, <samp class="option">-B</samp> or
<samp class="option">-C</samp> are in use,
+print <var class="var">string</var> instead of <samp class="option">--</samp>
between groups of lines.
</p>
</dd>
-<dt
id='index-_002d_002dgroup_002dseparator-1'><span><samp>--no-group-separator</samp><a
href='#index-_002d_002dgroup_002dseparator-1' class='copiable-anchor'>
¶</a></span></dt>
-<dd><span id="index-group-separator-1"></span>
-<p>When <samp>-A</samp>, <samp>-B</samp> or <samp>-C</samp> are in use,
+<dt><samp class="option">--no-group-separator</samp></dt>
+<dd><a class="index-entry-id" id="index-_002d_002dgroup_002dseparator-1"></a>
+<a class="index-entry-id" id="index-group-separator-1"></a>
+<p>When <samp class="option">-A</samp>, <samp class="option">-B</samp> or
<samp class="option">-C</samp> are in use,
do not print a separator between groups of lines.
</p>
</dd>
</dl>
-<p>Here are some points about how <code>grep</code> chooses
+<p>Here are some points about how <code class="command">grep</code> chooses
the separator to print between prefix fields and line content:
</p>
-<ul>
-<li> Matching lines normally use ‘<samp>:</samp>’ as a separator
+<ul class="itemize mark-bullet">
+<li>Matching lines normally use ‘<samp class="samp">:</samp>’ as a
separator
between prefix fields and actual line content.
-</li><li> Context (i.e., non-matching) lines use ‘<samp>-</samp>’
instead.
+</li><li>Context (i.e., non-matching) lines use ‘<samp
class="samp">-</samp>’ instead.
-</li><li> When context is not specified,
+</li><li>When context is not specified,
matching lines are simply output one right after another.
-</li><li> When context is specified,
+</li><li>When context is specified,
lines that are adjacent in the input form a group
and are output one right after another, while
by default a separator appears between non-adjacent groups.
-</li><li> The default separator
-is a ‘<samp>--</samp>’ line; its presence and appearance
+</li><li>The default separator
+is a ‘<samp class="samp">--</samp>’ line; its presence and
appearance
can be changed with the options above.
-</li><li> Each group may contain
+</li><li>Each group may contain
several matching lines when they are close enough to each other
that two adjacent groups connect and can merge into a single
contiguous one.
@@ -139,7 +132,7 @@
</div>
<hr>
-<div class="header">
+<div class="nav-panel">
<p>
Next: <a href="File-and-Directory-Selection.html">File and Directory
Selection</a>, Previous: <a href="Output-Line-Prefix-Control.html">Output Line
Prefix Control</a>, Up: <a href="Command_002dline-Options.html">Command-line
Options</a> [<a href="index.html#SEC_Contents" title="Table of contents"
rel="contents">Contents</a>][<a href="Index.html" title="Index"
rel="index">Index</a>]</p>
</div>
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