From: tsuraan <tsuraan@...>
Date: 2005-07-23T03:03:24+09:00
Subject: Re: newline and regular expressions

I guess I meant /.../s, which one site said was " '.' matches newline
mode", but anyhow, that works great.  Thanks!

On 22/07/05, Brian Schr�der <ruby.brian@gmail.com> wrote:
> On 22/07/05, tsuraan <tsuraan@gmail.com> wrote:
> > I have a string "foo\nbar=blah", which I'd like to entirely replace
> > with "baz=blah".  Supposedly, the regular expression constructed with
> > /.../i will match newlines, but it doesn't seem to work:
> >
> > > str = "foo\nbar=blah"
> > => "foo\nbar=blah"
> > > str.sub(/.*bar/i, 'baz')
> > => "foo\nbaz=blah"
> > > str.sub(/\A.*bar/i, 'baz')
> > => "foo\nbar=blah"
> >
> > Is there any way to do this?  Does the /.../i really do what I think
> > it should do?
> >
> >
> 
> /i makes the regexp case insensitve, use /m for multiline e.g. dot
> matches newline.
> 
> irb(main):001:0> "test\nit".gsub /./, 'X'
> => "XXXX\nXX"
> irb(main):002:0> "test\nit".gsub /./m, 'X'
> => "XXXXXXX"
> 
> regards,
> 
> Brian
> 
> --
> http://ruby.brian-schroeder.de/
> 
> Stringed instrument chords: http://chordlist.brian-schroeder.de/
> 
>