Re^3: regex, use of lookaround for whole word filtering

You could probably make the first regex use a non-greedy .*

Wouldn't help.

>perl -E"$_='nor neither nor'; say !/neither.*nor/ && /nor/ ?1:0"
0

>perl -E"$_='nor neither nor'; say !/neither.*?nor/ && /nor/ ?1:0"
0
[download]

Non-greediness is very fragile and frequently misused.

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Re^4: regex, use of lookaround for whole word filtering by choroba (Cardinal) on Aug 11, 2010 at 10:36 UTC
Two regexes with capturing in the first one, then: `$test = "a nor b neither"; say $test =~ /(.*?nor)/i && $1 !~ /neither/i ? 1 : 0;` [download]	[reply] [d/l]