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#1
08-02-2011
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How to do equivalent of /(regexp){0}/ ?
I don't want to have to resort to Code:
/([^s][^t][^r][^i][^n][^g])/ though that does work. Effectively, I need to be able to implement Code:
/(?:(?:regexp1){0}[^-0-9])(regexp2)\D/to basically match regexp2 as long as it is present and regexp1 is NOT. So, how to do Code:
/(regexp){0}/? |
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#2
08-03-2011
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You need a zero-width negative look-behind assertion from the extended patterns. Example: Code:
$ cat /tmp/test.txt This should be matched. This should not be matched. $ perl -ne 'print if /(?<!not\s)be/;' /tmp/test.txt This should be matched. $ |
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Vi-Curious (08-03-2011) | ||
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#3
08-03-2011
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That's what I get for not reading the entire perlre doc.
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