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| From: | Paolo Bonzini |
| Subject: | Re: sed: extend documentation of extended regular expressions by '|' |
| Date: | Sun, 31 Oct 2010 22:53:49 +0100 |
| User-agent: | Mozilla/5.0 (X11; U; Linux x86_64; en-US; rv:1.9.2.9) Gecko/20100921 Fedora/3.1.4-1.fc13 Lightning/1.0b3pre Mnenhy/0.8.3 Thunderbird/3.1.4 |
On 10/31/2010 10:52 PM, Gerald Pfeifer wrote:
While basic regular expressions
+require these to be escaped if you want them to behave as special
+characters, when using extended regular expressions you must escape
+them if you want them @emph{to match a literal character}. @samp{|}
+is special here because @samp{\|} is a GNU extension -- standard
+basic regular expressions do not provide its functionality.
Makes sense, thanks! Paolo
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