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Re: Unquoted special characters in regexps

From: Luc Teirlinck
Subject: Re: Unquoted special characters in regexps
Date: Sun, 26 Feb 2006 11:19:43 -0600 (CST)

Martin Rudalics wrote:

   I didn't care about `]'s closing a character alternative.  I did care
   about `]'s appearing in regular expressions _outside_ a character
   alternative and meant to match the character `]'.  Such `]'s should be
   quoted just like `.', `*', `+', `?', `[', `^', `$', and `\'.

To expand on my previous reply, you are arguing from a purely
legalistic viewpoint here, based on an error in the manual.  The
_purpose_ of quoting special characters even when they have no special
meaning is make clear that they have no special meaning.  "\\]" does
not clear up any confusion in situations where confusion could be
possible, so it is completely meaningless.

There is a mistake in the manual.  We should correct that mistake, not
make meaningless, and even confusing, changes to code.



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