Bill Stennett - compuserve wrote: > Hi All, > > I have a string formatted like this: > > my $mystring = 'var1=123::var2=abc456::var3=10.99::var4=def'; > > What I need to do is to be able to extract name=value. I cannot be > sure where in the list a any value will occur so to extract a value > for 'var2' from the above example would require matching either: > > '::var2=abc456::' > > or > 'var2=abc456::' > > or > '::var2=abc456' > > Can anyone suggest a regex to do this? > > I've been trying things like: > > ( $valueforvar2 ) = $mystring =~ m/var2=(.+)[::]/; > > but this only works if 'var2' is not last in the string. It also > generqate a warning as follows: "POSIX syntax [: :] belongs inside > character classes in regex; marked by <-- HERE in m/var2=(.+)[::] <-- > HERE / at Untitled line... > > Any suggestions appreciated.
( $valueforvar2 ) = $mystring =~ /(?:^|::)var2=([^:]+)(?:$|::)/; -- Bowie _______________________________________________ ActivePerl mailing list [email protected] To unsubscribe: http://listserv.ActiveState.com/mailman/mysubs
