Comments on nosewheelie: Ruby early return considered harmful (for idiots l...

Regular expression is really wonderful to parsing ...

2009-03-30T04:44:00.000+10:00

Regular expression is really wonderful to parsing HTML or matching pattern. I use this a lot when i code. Actually when I learn any new langauge, first of all I first try whether it supports regex or not. I feel ezee when I found that.

http://icfun.blogspot.com/2008/04/ruby-regular-expression-handling.html

Here is about ruby regex. This was posted by me when I first learn ruby regex. So it will be helpfull for New coders.

Regular expression is really wonderful to parsing ...

2009-03-30T04:34:00.000+10:00

You probably know this by now:The =~ operator retu...

2006-06-08T18:43:00.000+10:00

You probably know this by now:

The =~ operator returns the character position in the string of the start of the match (which evaluates to true in a boolean test), or nil if no match was found (which evaluates to false).

See here

I was playing around with it basically. I went fro...

2006-06-07T21:26:00.000+10:00

I was playing around with it basically. I went from the simplest (what you suggested), to the long hand form after hitting trouble. I'm still not convinced that the regex operator is behaving correctly (where correctly means my interpretation of it :), so I haven't dropped the true/false bits yet. The operator does more that just return true or false, it returns nil (i.e. null) if it doesn't find a match, or the index of the match if it does find it. I'm not sure how this behaves when used in an if.

Luckily I have test-driven the code, so I just changed it and it still works! Cheers.

OK, I know nothing of Ruby, but I'm wondering why ...

2006-06-06T02:13:00.000+10:00

OK, I know nothing of Ruby, but I'm wondering why you chose to use the if statement at all. What's wrong with:
def Uuid.isUuid(fragment)
return fragment =~ REGEX
end

For that matter, since it seems to use the last evaluated value as the return value, how about dropping the return?
def Uuid.isUuid(fragment)
fragment =~ REGEX
end