Rails - Sep 2009 - How to search and replace all urls on a HTML string using RUBY gsub

Hi ,

         I trying to search and replace all urls on a HTML string
using gsub .

CODE

html = "<a href=''http://site.com.br''><img
src=''http://site3.com/
image.jpg''></a><a
href=''http://newx.com.br''><img
src=''http://localhost/
imagem.jpg''></a>";

pattern = /<a href=[\''"]?([^\''">
]*)[\''"]?[^>]*>(.*?)<\/a>/mo

replace = "<a
href=''http://mysite.com/redirect/#{$1}''>#{$2}</a>"

html_output = html.gsub(pattern,replace)

The REGEX pattern is apparently working but I ''m not getting the
values of $1 and $2 . When I use \\1 and \\2 it works .
Thing is ... I need to encode $1 variable like this
replace = "<a
href=''http://mysite.com/redirect/#{Base64.encode64
($1)}''>#{$2}</a>"

and I not able to encode \\1

Can anyone help me ?

Try this one

html_output = html.gsub(pattern) do |link|
        "<a
href=''http://mysite.com/redirect/#{$1}''>#{$2}</a>"
end

-- 
Posted via http://www.ruby-forum.com/.

Hi Siddick ,

           Thanks a lot for your response but ...
           It didn''t work . html_output outputs the same content as
html variable .

Newton

On Sep 30, 4:07 am, Siddick Ebramsha <rails-mailing-l...@andreas-
s.net> wrote:
> Try this one
>
> html_output = html.gsub(pattern) do |link|
>         "<a
href=''http://mysite.com/redirect/#{$1}''>#{$2}</a>"
> end
>
> --
> Posted viahttp://www.ruby-forum.com/.

Based in your solution and searching on internet I tryied the
following aproach and it did work this time .

pattern5 = /<a href=[\''"]?([^\''">
]*)[\''"]?[^>]*>(.*?)<\/a>/o

html.gsub!(pattern5) do |n|
    "<a
href=''#{Base64.encode64($1)}''>#{$2}</a>"
end

puts html

I am now able to use $1 and $2

Thanks a lot .

Newton Garcia
Newx - Soluções para Internet
newx-P4ECzD7Nx0kIdKJ7tpkyPg@public.gmane.org
www.newx.com.br

On Sep 30, 10:36 am, newx
<newxh...-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>
wrote:
> Hi Siddick ,
>
>            Thanks a lot for your response but ...
>            It didn''t work . html_output outputs the same content
as
> html variable .
>
> Newton
>
> On Sep 30, 4:07 am, Siddick Ebramsha <rails-mailing-l...@andreas-
>
> s.net> wrote:
> > Try this one
>
> > html_output = html.gsub(pattern) do |link|
> >         "<a
href=''http://mysite.com/redirect/#{$1}''>#{$2}</a>"
> > end
>
> > --
> > Posted viahttp://www.ruby-forum.com/.