From: Mike Steiner <mikejaysteiner@...>
Date: 2007-06-25T11:01:43+09:00
Subject: Re: regexp questions

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Thanks for the ideas about the _italics_!

I found out what my "weird" problem was - I wasn't double-escaping the \1 in
the replacement string (I was using "<i>\1</i>" instead of "<i>\\1</i>".)
It's funny how Python didn't require this. Hmmm.

Mike Steiner

On 6/24/07, Michael Glaesemann <grzm@seespotcode.net> wrote:
>
>
> On Jun 24, 2007, at 11:35 , Wyatt Draggoo wrote:
>
> > On Sun, Jun 24, 2007 at 05:45:30PM +0900, Daniel Lucraft wrote:
> >
> >> irb> str.gsub(/_(.+?)_/m, "<i>\\1</i>")
> >
> > I like to be very strict with things like quotes (and underscores
> > in this case), so I would probably use:
> >
> > irb> str.gsub(/_([^_]+)_/, "<i>\\1</i>")
>
> From a strictness point of view, what's the difference between /(.+?)
> _/ and /([^_]+)_/ in the above? AIUI, they're equivalent. I
> personally like the former because if you need to change the _ to
> some other character, you only have to make a single character change.
>
> Michael Glaesemann
> grzm seespotcode net
>
>
>
>

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