REBOL [ Title: "Find Block" Date: 3-Jul-2002 Name: 'Find-Block Version: 1.0.0 File: %find-block.r Author: "Andrew Martin" Purpose: "Finds a tuple in a block or tuple-space." eMail: %Al--Bri--xtra--co--nz Web: http://valley.150m.com library: [ level: 'beginner platform: none type: 'tool domain: 'DB tested-under: none support: none license: none see-also: none ] ] Find-Block: function [ "Finds a tuple in a block." Space [block!] "The tuple-space to find it in." Tuple [block!] "The tuple to find." ] [Index Mark] [ if none? Index: find/only Space Tuple [ Index: none parse Space [ any [ [Mark: into Tuple to end end (Index: Mark)] | block! ] end ] ] Index ]