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[REBOL] Parse learning problem (simple)

From: joesolinsky::yahoo at: 29-Nov-2007 22:07

Hello, I would very much like to write a trivial parser that will consume the following format letter: charset [#"a" - #"z" #"A" - #"Z"] digit: charset [#"0" - #"9"] letter-or-digit: union letter digit valid-name: [letter any letter-or-digit] params: [valid-name | valid-name "," params] function-rule: [valid-name "(" params ")" ] and recognize the following input: parse "person(fred)" function-rule parse "buys(fred,shoes)" function-rule I would also dearly like to change function-rule and params to capture and store the "valid-name" values, related to each other. As usual, REBOL syntax is more "powerful" than I can understand. Also, a commentary question: I'm exploring first-order logic. Is REBOL a poor choice over Prolog for this? Thanks for your input. -Joe Solinsky ____________________________________________________________________________________ Be a better pen pal. Text or chat with friends inside Yahoo! Mail. See how.