view tests/env.ur @ 2237:e79ef5792c8b

Fix bug in redundancy checking and use finer formula for UPDATE statements.
author Ziv Scully <>
date Sun, 05 Jul 2015 23:57:28 -0700
parents 3d922a28370b
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fun handler r =
  vo <- getenv (blessEnvVar r.Nam);
  return <xml><body>
  {case vo of
       None => <xml>Not set</xml>
     | Some v => <xml>Set to: {[v]}</xml>}

fun main () : transaction page =
  term <- getenv (blessEnvVar "TERM");
  return <xml><body>
    TERM = {case term of
                None => <xml>Nada</xml>
              | Some v => txt v}
      What would you like to know?
      <submit action={handler}/>