In
<of7d634a67.876492a9-on80257ba2.0039bb20-80257ba2.003eb...@uk.ibm.com>,
on 07/08/2013
at 12:25 PM, Martin Packer <martin_pac...@uk.ibm.com> said:
>Why \2 and not \1? I recognise this as a backreference but don't
>know what happened to the first one.
Per syntax for unnamed capture n is $n and \n. There are also named
captures; I don't know which syntax PCRE uses for them, but Perl uses
(?<foo>bar), (?'foo"bar), \g{foo} and $+{foo} capture the match bar as
foo and to refer back to the match.
--
Shmuel (Seymour J.) Metz, SysProg and JOAT
Atid/2 <http://patriot.net/~shmuel>
We don't care. We don't have to care, we're Congress.
(S877: The Shut up and Eat Your spam act of 2003)
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