Re^2: How to use split() in perl to ignore white space and ','

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Re^3: How to use split() in perl to ignore white space and ',' by soonix (Chancellor) on Feb 11, 2015 at 10:01 UTC
Sure, if you can exactly tell what the regex should accomplish - split commas except commas between quotes except it's not between any quotes, but the quotes must be balanced perhaps the quotes are nested escaped quotes (`\'`) have to be exempt the same conditions for double quotes them mixed and matched what about escaped commas (`\,`)? other special cases I forgot to think of? I do use `split` sometimes, but only if it's guaranteed to be commas only. As soon as a special case becomes visible on the horizon, I use Text::CSV (which in turn uses Text::CSV_XS if possible).	[reply] [d/l] [select]
Re^3: How to use split() in perl to ignore white space and ',' by Not_a_Number (Prior) on Feb 11, 2015 at 09:43 UTC
Can't we optimize it Please explain in what way you find the code sub-optimal. using regex memory I'm sorry, I don't understand. What it this 'regex memory' you speak of?	[reply]
Re^4: How to use split() in perl to ignore white space and ',' by brilant_blue (Beadle) on Feb 11, 2015 at 10:03 UTC
I think the term 'using regex memory' which iamnewbie used means 'using capturing parentheses' in the regexp.	[reply]
Re^3: How to use split() in perl to ignore white space and ',' by karlgoethebier (Abbot) on Feb 11, 2015 at 14:31 UTC
"...Can't we optimize it using regex memory?" I'm not sure what you mean but i guess you perhaps mean something like this: `my $string = "hello,'world, yo',matt"; my @result = $string =~ /(\.+),('.+'),(.+)/; print qq($_\n) for @result;` [download] See also Is guessing a good strategy for surviving in the IT business? and perlretut. But i'm sure that this is not really an optimization. I think, ~~the~~ some solutions given already are probably better. Edit: I tried to be more precise in judgement... Best regards, Karl ŤThe Crux of the Biscuit is the Apostropheť	[reply] [d/l]