From: Jeremy Woertink <jeremywoertink@...>
Date: 2007-09-19T07:04:48+09:00
Subject: Re: Regexp help

Daniel Lucraft wrote:
> Jeremy Woertink wrote:
>> What I want to do is determine if a string includes 2 special characters
>> a semi-colon and a question mark.
> 
> You don't need regular expressions to do that, try this instead:
> 
> irb> encoding.include? ";" and encoding.include? "?"
>   => true
> 
> On the other hand, if you want to use regular expressions regardless, 
> you should notice that String#include? takes a string rather than a 
> Regexp.
> 
> Note that:
> irb> %r{;\?}.to_s
>    > "(?-mix:;\\?)"
> 
> So
> encoding.include?(%r{;\?}.to_s)
> 
> is equivalent to
> encoding.include?("(?-mix:;\\?)")
> 
> which is not going to succeed.
> 
> To use a regexp, try:
> irb> encoding =~ /(;.*\?)|(\?.*;)/
>   => true.
> 
> best
> Dan

Thanks for the help. I would like to use a regexp becuase I think it 
will look nicer in the code. I tried your example and got

C:\rails_apps\hotswipe>irb
irb(main):001:0> require 'config/environment'
=> true
irb(main):002:0> encoding = ";6277200301500269=?"
=> ";6277200301500269=?"
irb(main):003:0> encoding =~ /(;.*\?)|(\?.*;)/
=> 0
irb(main):004:0>

So what does the 0 mean? 0 matches? If all else fails, I will use the 
ugly version :)


thanks,
~Jeremy
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