On Wed, 2008-09-24 at 18:32 +0200, Rob Coops wrote: > Hi all, > > I am having some trouble matching the following string: > > "Some text+...:...:...:...:...+some more text" > > The trick is there are two dilimiters in this string the + and the : are > used to separate the string, the + signifies a part of the string ended and > the : signifies a sub part of the string has ended. > > Now I need to match this string according to the following rules. > > - Part 1: 0 to 15 alphanumeric characters (Mandatory) > - Part 2: (Mandatory) > - Sub part 1 0 to 70 alphanumeric characters (Optional) > - Sub part 2 0 to 70 alphanumeric characters (Optional) > - Sub part 3 0 to 70 alphanumeric characters (Optional) > - Sub part 4 0 to 70 alphanumeric characters (Optional) > - Sub part 5 0 to 70 alphanumeric characters (Optional) > - Part 3: 0 to 3 alphanumeric characters (Optional) > > I am 100% certain to get all possible variations that these rules allow, so > how do I match this correctly using a single regex? > > Thanks for any help provided, > > Rob
The question is: Does '+' and ':' have any other meaning? If not, you have context-free data and can use regular expressions to parse it. my @parts = split /\+/, $line; my @subparts = split /:/, $parts[1]; You can now validate $parts[0], @subparts, and $parts[2]. -- Just my 0.00000002 million dollars worth, Shawn Linux is obsolete. -- Andrew Tanenbaum -- To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED] http://learn.perl.org/
