Mercurial > urweb
view tests/reqheader.ur @ 1505:8c851e5508a7
Tutorial: up to First-Class Polymorphism
author | Adam Chlipala <adam@chlipala.net> |
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date | Sun, 17 Jul 2011 11:00:04 -0400 |
parents | 360cbc202756 |
children |
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fun main () : transaction page = ua <- requestHeader "User-Agent"; case ua of None => return <xml>Not found</xml> | Some s => return <xml>User-Agent: {[s]}</xml>