From: "daniel åkerud" <daniel.akerud@...>
Date: 2007-09-19T23:59:34+09:00
Subject: Re: replace multiple patterns of a string in single pass

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On 9/19/07, Jeff <cohen.jeff@gmail.com> wrote:
>
> On Sep 19, 5:13 am, Vellingiri Arul <hariharan....@rediffmail.com>
> wrote:
> > Dear Friends,
> >         How can I replace multiple patterns of a string in single pass.
> >
> > by
> > Vellingiri
> > --
> > Posted viahttp://www.ruby-forum.com/.
>
> Try String#gsub
>
> Jeff
>
>
>
What you need to do is put multiple regular expressions into String#gsub
method by first calling Regexp::union. At each match you need to find out
which regular expression did the match and provide it with the replacement
string. So you need to use this version of gsub:
  str.gsub(pattern) {|match| block }   => new_str

/D

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