i think the last email was right about the pattern needing to be ([A-Z]-)(?![^a-z]{3})([a-z0-9A-Z]* ), this one is like a double NOT, almost right?

Now I'm just curious with a pattern like this.... This pattern ([A-Z]-)(?![^a-z]{3}) for text: A-xyz37 # B-ab6142 # C-Wxy66 # D-qrs93 matches A-xyz37 # B-ab6142 # C-Wxy66 # D-qrs93

Its looking to make sure the next thing after Capital Letter dash isnt 3 lower case letters, then 'nots' it? aka it really looks ahead for 3 lowercase letters, and i thought would only match A- and D-.

Thanks for the help btw, I wasnt sure if these were problems with program or just me understanding regexes bad :) which is most likely the case. Arian

2008/5/21 Laurent TAUPIAC ltaupiac@lfdj.com:

Negative lookup assertion should match to be validate. If "Wxy" not match, the positive assertion failed.

If you want a Capital letter followed by a dash but not followed by 3 lower case, you should match "not 3 lower case" ([A-Z]-)(?![^a-z]{3})([a-z0-9]* )

Regards

Arian Hojat a écrit :

Hello all,

had a question/possible bug report... For the example on this webpage: http://www.nuclearblender.com/leftovers/howto/regex/

this pattern is presented and i tried a positive lookup assertion which worked, but this first negative one only matched the first pattern (global option is on btw, so not sure why wont match). Pattern: ([A-Z]-)(?![a-z]{3})([a-z0-9]* ) Text to lookup: A-xyz37 # B-ab6142 # C-Wxy66 # D-qrs93

Should match B-ab6142 and C-Wxy66 as they both (have a capital letter followed by a dash), then (dont have 3 lower case letters), and (are following by letters/numbers and a space) only matches first one in the program.

Thanks, let me know if it should match only one if im wrong. Running latest version on Windows XP. Great Tool! Arian

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