Re^3: Parse::RecDescent: problem with grammar and error reporting

Ah, it's because if one has /PAT1*PAT2*/ Perl prefers to match as many PAT1s as possible, even to the extend of matching less in total. Witness the difference:

$ perl -wE 'q{Even more test address@test.com @20} =~ /[^@\n]*(?:\S@[^
+@\n]*)*/ and say $&'
Even more test address
$ perl -wE 'q{Even more test address@test.com @20} =~ /[^@\n]*(?:\S@[^
+@\n]*)+/ and say $&'
Even more test address@test.com
[download]

Try this:

/[^\S\n]*(?:[^\s@]+@?[^\S\n]*)*/
[download]

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Re^4: Parse::RecDescent: problem with grammar and error reporting by kikuchiyo (Hermit) on Jan 20, 2012 at 12:44 UTC
Nice. Only problem with it is that it matches the empty line, which it shouldn't do. This way every line ends up on one unterminated slide, so the parsing fails at the end.	[reply]
Re^5: Parse::RecDescent: problem with grammar and error reporting by JavaFan (Canon) on Jan 20, 2012 at 13:18 UTC
I'm sure you can fix that yourself, don't you think?	[reply]
Re^6: Parse::RecDescent: problem with grammar and error reporting by kikuchiyo (Hermit) on Jan 20, 2012 at 13:56 UTC
Ahem... yes, thanks.	[reply]