Mercurial > urweb
view tests/reqheader.ur @ 2184:1ecef02f67c5
More Elaborate work to avoid instantiating unification variables with out-of-scope regular variables
author | Adam Chlipala <adam@chlipala.net> |
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date | Sat, 24 Oct 2015 17:23:07 -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>