From: William James <w_a_x_man@...>
Date: 2008-02-12T06:44:56+09:00
Subject: Re: non case sensitive searching

On Feb 11, 3:19 pm, Adam Akhtar <adamtempor...@gmail.com> wrote:
> If i want to see if a list contains a particular word how would i go
> about doing so with letter case not being important. Normally two words
> spelt the same are not equal if they differ in case.
>
> i.e. Shell != shell
> or   ShEll != shell
>
> At first i thought simply conveting both the list and the word to search
> into uppercase thus making them the same but doing so would not be very
> efficient if the list is very big.

>> irb --prompt xmp
%w(hello HELLO Hello hellO hell).grep( /hello/i )
    ==>["hello", "HELLO", "Hello", "hellO"]