From: Ravi Singh <bobagent@...>
Date: 2007-05-05T08:45:58+09:00
Subject: Re: Regular expression - first two alphabets of a string

Robert Klemme wrote:
> On 03.05.2007 20:30, Rick DeNatale wrote:
>>> On 5/3/07, Ravi Singh <bobagent@gmail.com> wrote:
>>> > "axyz" - is fine
>> irb(main):004:0> "a yz".match(re)
>> => #<MatchData:0xb7bacb1c>
> 
> What exactly do you gain by using lookahead instead of a normal match?
> 
> Kind regards
> 
>   robert

When Rick directed me to use -ve lookahead I reach the following page 
and it made the point clear.

http://www.regular-expressions.info/lookaround.html

Regards,

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