Given something like:
message.split(/\n.* at.* XXXXXXXX wrote:.*/m).first
This works if there is a match, but when there isn't, it just returns all of message.
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2 Answers
If you're trying to count the number of matches, then you're using the wrong method. split is designed to take a string and chop it into bits, but as you've observed, if there aren't any matches, then it returns the whole thing. I think you want to use String.scan instead:
message.scan(/\n.* at.* XXXXXXXX wrote:.*/m).size
3 Comments
AnApprentice
Thanks but where does that get the length? IE if any matches were found. I just need to know if a match was found or not.
Paul Russell
You should be able to set a regexp like that (works for me). Sorry, just to check, are you saying you literally just want to know if it matches? (i.e. you're not interested in extracting any of the text?)
Paul Russell
Ahh, sorry, just realised that you're trying to count how many matches you get, not really trying to split the string at all. Editing answer.
Well split will return an array. So you could just check for length > 1
m = message.split(/\n.* at.* XXXXXXXX wrote:.*/m)
if m.length > 1
return m.first
else
return nil
end
6 Comments
AnApprentice
@Doon, sorry just tried it out... it always returns m.first. Ideas?
AnApprentice
Here's what I have: m = to.split(/@mysite.com.*/) if m.length > 1 return m.first.strip else return nil end
AnApprentice
Looks like all m.length is doing is counting characters?
Doon
in your example what is in to?
Doon
What exactly are you trying to do? It looks like you are reading the info in a to field, and trying to get some info there might be better way to get that info.
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