(?:(?<!video).)+ is wrong.
for my $re (
qr/"(?:(?!video).)+"/,
qr/"(?:(?<!video).)+"/,
qr/"(?:.(?<!video))+"/,
) {
print("$re\n");
for (
'"...video..."',
'"...video"',
'"video..."',
'"video"',
) {
print("$_: ", /$re/?1:0, "\n");
}
}
(?-xism:"(?:(?!video).)+")
"...video...": 0
"...video": 0
"video...": 0
"video": 0
(?-xism:"(?:(?<!video).)+")
"...video...": 0
"...video": 1 <----- XXX
"video...": 0
"video": 1 <----- XXX
(?-xism:"(?:.(?<!video))+")
"...video...": 0
"...video": 0
"video...": 0
"video": 0
(?:(?!video).)+ and (?:.(?<!video))+ should be equivalent. You can do benchmarks to be sure.
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<u> <ul>
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Snippets of code should be wrapped in
<code> tags not
<pre> tags. In fact, <pre>
tags should generally be avoided. If they must
be used, extreme care should be
taken to ensure that their contents do not
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horizontal scrolling (and possible janitor
intervention).
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Want more info? How to link
or How to display code and escape characters
are good places to start.
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