From: Brian Candler <b.candler@...>
Date: 2011-01-24T03:07:33+09:00
Subject: Re: How to convert letters to uppercase?

Richard Sandoval wrote in post #976947:
> Im unfamiliar with regular expressions.
>
> How would I be able to change all letters to uppercase to the first
> period?
>
> Before:
>
> helpuser01.hello.txt
>
>
> After:
>
> HELPUSER01.hello.txt

1. Write a regular expression to match everything before the first 
period.

2. Substitute it with the uppercased version

str = "helpuser01.hello.txt"
str.sub!(/\A.*?\./) { $&.upcase }
puts str

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