From: Zach Dennis <zdennis@...>
Date: 2003-11-19T09:03:24+09:00
Subject: Re: String startswith/endswith in Ruby?

Dave,

There is a common way of writing this. It uses the built-in regular
expression(s) of ruby.
Try something like.

s = "Hello, world!"
/^Hello/.match( s ) 	>> true
/!$/.match( s ) 		>> true
/asdf$/match( s ) 	>> false

HTH,

Zach

-----Original Message-----
From: Dave Benjamin [mailto:ramen@lackingtalent.com]
Sent: Tuesday, November 18, 2003 6:52 PM
To: ruby-talk ML
Subject: String startswith/endswith in Ruby?


Hi all,

I'm a Python user trying to learn a bit of Ruby. I was wondering if there's
a common way of writing "startswith" and "endswith" expressions for strings
in Ruby.

For instance:

s = 'Hello, world!'
s.startswith('Hello')    >> true
s.endswith('!')          >> true
s.endswith('asdf')       >> false

I'd like to avoid having to calculate the length of the string I'm searching
for; I'd prefer not to have to write "s[0..4] == 'Hello'" or similar.

Thanks!
Dave

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