> Dan Muey wrote: > > > > Howdy, > > Hello, > > > perldoc perlre on 5.8.0 says that [:ascii:] should match any ascii > > character and [:^ascii:] is the negate version. > > > > If I do =~m/[:^ascii:]/ or [:ascii:] on astring that is 'hi' it > > That character class matches the characters 'a', 'c', 'i', > 's', ':' or '^' and 'hi' contains the character 'i' so it > returns true. > > > > returns true each way, so I believe it says the [] are part of [::] > > conbstruct which I think means you have to have[[:class:]] > > Yes. > > > > Now [^[:ascii:]] and [[:ascii:]] behave as you'd expect so I think > > that's all correct ( Please tell me if I'm wrong) > > > > SO my question is: > > > > Which is faster/better/more portable/compliant etc.... > > > > [^[:ascii:] or [[:^ascii:]] ?? > > $ perl -le'use re qw/debug/; "xxx" =~ /[[:^ascii:]]/g' > Compiling REx `[[:^ascii:]]' size 11 first at 1 > 1: ANYOF[-\377](11) > 10: END(0) > stclass `ANYOF[-\377]' minlen 1 > Matching REx `[[:^ascii:]]' against `xxx' > Freeing REx: `[[:^ascii:]]' > > $ perl -le'use re qw/debug/; "xxx" =~ /[^[:ascii:]]/g' > Compiling REx `[^[:ascii:]]' size 11 first at 1 > 1: ANYOF[-\377](11) > 10: END(0) > stclass `ANYOF[-\377]' minlen 1 > Matching REx `[^[:ascii:]]' against `xxx' > Freeing REx: `[^[:ascii:]]' > > > They both look the same to me.
Cool, I'll have to look into that little trick, thanks John! Dan > > > John > -- > use Perl; > program > fulfillment > > -- > To unsubscribe, e-mail: [EMAIL PROTECTED] > For additional commands, e-mail: [EMAIL PROTECTED] > > -- To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
