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Changes to grep/manual/html_node/Matching-Control.html,v
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From: |
Jim Meyering |
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Subject: |
Changes to grep/manual/html_node/Matching-Control.html,v |
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Date: |
Fri, 23 May 2014 05:40:20 +0000 |
CVSROOT: /webcvs/grep
Module name: grep
Changes by: Jim Meyering <meyering> 14/05/23 05:40:03
Index: html_node/Matching-Control.html
===================================================================
RCS file: /webcvs/grep/grep/manual/html_node/Matching-Control.html,v
retrieving revision 1.17
retrieving revision 1.18
diff -u -b -r1.17 -r1.18
--- html_node/Matching-Control.html 21 Feb 2014 17:16:49 -0000 1.17
+++ html_node/Matching-Control.html 23 May 2014 05:40:01 -0000 1.18
@@ -1,8 +1,8 @@
<html lang="en">
<head>
-<title>Matching Control - GNU Grep 2.18</title>
-<meta http-equiv="Content-Type" content="text/html">
-<meta name="description" content="GNU Grep 2.18">
+<title>Matching Control - GNU Grep 2.19</title>
+<meta http-equiv="Content-Type" content="text/html; charset=utf-8">
+<meta name="description" content="GNU Grep 2.19">
<meta name="generator" content="makeinfo 4.13">
<link title="Top" rel="start" href="index.html#Top">
<link rel="up" href="Command_002dline-Options.html#Command_002dline-Options"
title="Command-line Options">
@@ -12,7 +12,7 @@
<!--
This manual is for `grep', a pattern matching engine.
-Copyright (C) 1999-2002, 2005, 2008-2014 Free Software Foundation,
+Copyright (C) 1999--2002, 2005, 2008--2014 Free Software Foundation,
Inc.
Permission is granted to copy, distribute and/or modify this
@@ -57,8 +57,20 @@
The empty file contains zero patterns, and therefore matches nothing.
(<samp><span class="option">-f</span></samp> is specified by POSIX.)
- <br><dt><samp><span class="option">-i</span></samp><dt><samp><span
class="option">-y</span></samp><dt><samp><span
class="option">--ignore-case</span></samp><dd><a
name="index-g_t_002di-13"></a><a name="index-g_t_002dy-14"></a><a
name="index-g_t_002d_002dignore_002dcase-15"></a><a
name="index-case-insensitive-search-16"></a>Ignore case distinctions in both
the pattern and the input files.
-<samp><span class="option">-y</span></samp> is an obsolete synonym that is
provided for compatibility.
+ <br><dt><samp><span class="option">-i</span></samp><dt><samp><span
class="option">-y</span></samp><dt><samp><span
class="option">--ignore-case</span></samp><dd><a
name="index-g_t_002di-13"></a><a name="index-g_t_002dy-14"></a><a
name="index-g_t_002d_002dignore_002dcase-15"></a><a
name="index-case-insensitive-search-16"></a>Ignore case distinctions, so that
characters that differ only in case
+match each other. Although this is straightforward when letters
+differ in case only via lowercase-uppercase pairs, the behavior is
+unspecified in other situations. For example, uppercase “S” has an
+unusual lowercase counterpart “Å¿” (Unicode character U+017F, LATIN
+SMALL LETTER LONG S) in many locales, and it is unspecified whether
+this unusual character matches “S” or “s” even though
uppercasing
+it yields “S”. Another example: the lowercase German letter
“Ô
+(U+00DF, LATIN SMALL LETTER SHARP S) is normally capitalized as the
+two-character string “SS” but it does not match “SS”,
and it might
+not match the uppercase letter “Ẕ (U+1E9E, LATIN CAPITAL LETTER
+SHARP S) even though lowercasing the latter yields the former.
+
+ <p><samp><span class="option">-y</span></samp> is an obsolete synonym
that is provided for compatibility.
(<samp><span class="option">-i</span></samp> is specified by POSIX.)
<br><dt><samp><span class="option">-v</span></samp><dt><samp><span
class="option">--invert-match</span></samp><dd><a
name="index-g_t_002dv-17"></a><a
name="index-g_t_002d_002dinvert_002dmatch-18"></a><a
name="index-invert-matching-19"></a><a
name="index-print-non_002dmatching-lines-20"></a>Invert the sense of matching,
to select non-matching lines.
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