Re: How can i extract a number from an string

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Re^2: How can i extract a number from an string by JavaFan (Canon) on Jan 22, 2009 at 12:34 UTC
Not if you know split: `$ perl -wE 'say +(split/([0-9]+)/,"BS123-bleble")[1]' 123` [download]	[reply] [d/l]
Re^2: How can i extract a number from an string by johngg (Canon) on Jan 22, 2009 at 14:57 UTC
An alternative to JavaFan's use of a capture in the split regexp could be to use look-arounds to do the split at points where the string changes from non-digit to digit and vice-versa. I think JavaFan's method is better in this case but the look-arounds can sometimes be a useful technique. `$ perl -le ' > $_ = q{BS123-bleble}; > print +( split m{(?x) (?: (?<=\D)(?=\d) \| (?<=\d)(?=\D) )} )[ 1 ];' 123 $` [download] I hope this is of interest. Cheers, JohnGG	[reply] [d/l]
Re^3: How can i extract a number from an string by Sombrerero_loco (Beadle) on Jan 23, 2009 at 11:02 UTC
Wow....such complicate to extract the number. I never think its takes too many code to extract just a number, i thought using split the code must be easier. I'll try it today and keep you posted.. Thanks everyone for the replies! :::When you dream, there're no rules, ppl can fly...anything can happen!!!:::	[reply]