From: | David Wheeler <david(at)kineticode(dot)com> |
---|---|
To: | David Fetter <david(at)fetter(dot)org> |
Cc: | SF Postgres <sfpug(at)postgresql(dot)org> |
Subject: | Re: Regular Expression Help? |
Date: | 2003-11-05 04:56:29 |
Message-ID: | 6ACCE8FA-0F4C-11D8-B9C0-0003931A964A@kineticode.com |
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Thread: | |
Lists: | sfpug |
On Tuesday, November 4, 2003, at 08:50 PM, David Fetter wrote:
>>> $eline =~ s/(#\w+)/$replacements{$1} || $1/ge;
>
> I'd be a little scared to use this one because #\w+ matches more
> things than I know about for sure.
Yes, but I've allowed for that by just using $1 if it doesn't exist in
%replacements.
> It might be a little less maintenance to do something like
>
> $match = qr{ "(". join("|", keys %replacements) . ")" }o;
>
> $eline =~ s/$match/$replacements{$1}/g;
Yeah, that's cool, too, although the terminal "o" probably isn't
needed, because a qr// is defined once by default!
Cheers,
David
--
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