"Mumia W." schreef: > Ryan Moszynski: >> I need to write some code to allow users to specify which of a whole >> bunch of elements(e.g.512/1024) that they want to view. My idea for >> how to do this was to have them input a semicolon delimited list, for >> example: >> >> 1-10;25;33;100-250 >> >> >> i tried using this to check to make sure they input a valid list that >> i can process: >> [...] > > $str =~ m/^((\d+-\d+|\d+);?)+$/g; > > However, this does not consider 250-100 to be invalid.
Nor "10-30-20". What's the g-modifier for? The structure is 'a;b;c;d', the smallest is 'a', so treat the ';' as the start of a trailer. -- Affijn, Ruud "Gewoon is een tijger." -- To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED] <http://learn.perl.org/> <http://learn.perl.org/first-response>
