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Explicitly tell that one needs to start a context address with a

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backslash if he/she wants to use a non-traditional delimiter, i.e.,
anything other than a slash.  That is, /abc/ works as is, but xabcx
needs to be spelled as \xabcx.

Add appropriate markup.

Bump Dd.

Checked with:	IEEE Std 1003.1, 2004 Edition
MFC after:	3 days
This commit is contained in:
Yaroslav Tykhiy 2008-08-24 13:47:53 +00:00
parent f0c042211b
commit 625451f9f4
Notes: svn2git 2020-12-20 02:59:44 +00:00 
svn path=/head/; revision=182107
1 changed files with 11 additions and 4 deletions
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15
usr.bin/sed/sed.1
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@ -31,7 +31,7 @@
.\" @(#)sed.1 8.2 (Berkeley) 12/30/93
.\" $FreeBSD$
.\"
.Dd April 21, 2007
.Dd August 24, 2008
.Dt SED 1
.Os
.Sh NAME
@ -243,10 +243,17 @@ has the following two additions to regular expressions:
In a context address, any character other than a backslash
.Pq Dq \e
or newline character may be used to delimit the regular expression.
The opening delimiter needs to be preceded by a backslash
unless it is a slash.
For example, the context address
.Li \exabcx
is equivalent to
.Li /abc/ .
Also, putting a backslash character before the delimiting character
causes the character to be treated literally.
For example, in the context address \exabc\exdefx, the RE delimiter
is an
withing the regular expression causes the character to be treated literally.
For example, in the context address
.Li \exabc\exdefx ,
the RE delimiter is an
.Dq x
and the second
.Dq x