Hey, that's pretty good, arhuman. I will use that as a starting point...

To be more precise:

• There is a list of cities each separated by a slash
• There might be some duplicate cities anywhere in the list (ie 0, 1 or many duplicates)
• I want to form a list in any order without any duplicates, each separated by a slash (only one)

Examples:

• New York/Chicago/New York
• New York/Chicago/New York/Chicago/Buffalo
• Buffalo/New York/Chicago/New York/Chicago

I read Mastering Regular Expressions a while ago, and I'll read Japhy's book when it comes out, but regular expressions sometimes mystify me. Is it easier for people with the name Jeffrey for some reason?

-- iakobski

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