From: Peter Bailey <pbailey@...>
Date: 2007-01-27T01:44:59+09:00
Subject: Re: simple question about Ruby Regext

James Gray wrote:
> On Jan 26, 2007, at 8:45 AM, Peter Bailey wrote:
> 
>>
>> Thanks, Wolfgang. So, you suggest the use of "scan" instead of "gsub?"
>> That would imply the need for a block, which, seems kind of wordy,  
>> but,
>> it does have power. . . . Thanks again.
> 
> gsub/gsub! also take a block.
> 
> Which one you use depends mainly on your purpose.  Here's how I view
> the methods, in terms of a "Find and Replace" feature set common to
> so many programs:
> 
> sub/sub!   == Find
> gsub/gsub! == Find and Replace
> scan       == Find All
> 
> Hope that helps.
> 
> James Edward Gray II

That does help, James. Thanks. But, don't "sub" and "sub!" do a 
replacement; so, they're doing more than just finding? At least, they're 
finding and replacing the first instance of whatever, just not globally?

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