J's type system is fixed and functions don't have signatures, so the language doesn't support pattern matching in the function dispatch / algebraic datatype sense.
If you mean regular expressions, J embeds PCRE ("Perl Compatible Regular Expressions"). -Dan -----Original Message----- From: programming-boun...@forums.jsoftware.com [mailto:programming-boun...@forums.jsoftware.com] On Behalf Of Richard Gaylord Sent: Thursday, September 12, 2013 3:01 PM To: programm...@jsoftware.com Subject: [Jprogramming] pattern matching in J what are the pattern matching capabilities of J? -- *"Those who would sacrifice freedom for security deserve neither." - Benjamin Franklin* *"I think that the very notion that equations are a good approach to describing the natural world is a little bizarre." - Stephen Wolfram* * * ---------------------------------------------------------------------- For information about J forums see http://www.jsoftware.com/forums.htm ---------------------------------------------------------------------- For information about J forums see http://www.jsoftware.com/forums.htm