Re: Iterations in regex

toolic is right, with the last plus you ARE matching all words already in the first "iteration" (so /g is useless), but only the last matches can be returned (the ones before are overwritten).

Without the + the /g will produce multiple attempts and return matches for each one.

BTW: did you really mean ,+ ??? Looks weird...

Cheers Rolf

( addicted to the Perl Programming Language)

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Re^2: Iterations in regex by vitoco (Hermit) on May 12, 2014 at 17:02 UTC
Thanks to both of you. I've tried adding and removing the `g` modifier, but never tried without the last operator. The sample code was a simplification of my real problem, where I'm trying to capture one specific record from one kind of table from a set of html documents, where each field has it's own line in the source. Doing that way, I had to split the original regex in two: one to identify the required record by the value of the first field another to the capture of the data fields BTW, the original regex was something like this: `my ($k, @f) = ($h =~ m!<td.?>(required_\d+_\d+.txt)</td>\s+(<td.?> +(.+?)</td>\s+)+</tr>!m);` [download] Then, the "`,+`" actually meant whitespace "`\s+`", but I wanted to make them visible in the output. ;-)	[reply] [d/l] [select]

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Re^2: Iterations in regex
by vitoco (Hermit) on May 12, 2014 at 17:02 UTC

Thanks to both of you. I've tried adding and removing the g modifier, but never tried without the last operator.

The sample code was a simplification of my real problem, where I'm trying to capture one specific record from one kind of table from a set of html documents, where each field has it's own line in the source.

Doing that way, I had to split the original regex in two:

one to identify the required record by the value of the first field
another to the capture of the data fields

BTW, the original regex was something like this:

  my ($k, @f) = ($h =~ m!<td.*?>(required_\d+_\d+.txt)</td>\s+(<td.*?>
+(.+?)</td>\s+)+</tr>!m);
[download]

Then, the ",+" actually meant whitespace "\s+", but I wanted to make them visible in the output. ;-)

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