From: "Jesús Gabriel y Galán" <jgabrielygalan@...>
Date: 2009-07-31T18:45:23+09:00
Subject: Re: How to include a string into a regex comparison?

On Fri, Jul 31, 2009 at 11:25 AM, Iñaki Baz Castillo<ibc@aliax.net> wrote:

> valid_content_type      = "application/auth-policy+xml"
> received_content_type = "application/auth-policy+xml;charset=ISO-8859-1"
>
> received_content_type =~ /^application\/auth\-policy\+xml;?/
> => 0
>
> received_content_type =~ /^#{received_content_type};?/
> => nil
>
> How to fix it? Thanks a lot.

Try this:

irb(main):001:0> valid_content_type      = "application/auth-policy+xml"
=> "application/auth-policy+xml"
irb(main):002:0> received_content_type =
"application/auth-policy+xml;charset=ISO-8859-1"
=> "application/auth-policy+xml;charset=ISO-8859-1"
irb(main):005:0> re = /^#{Regexp.escape(valid_content_type)};?/
=> /^application\/auth\-policy\+xml;?/
irb(main):006:0> received_content_type =~ re
=> 0

Hope this helps,

Jesus.