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THE META-HTML LANGUAGE REFERENCE MANUAL

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Name: VAR-CASE

Synopsis:

<var-case &optional [NAME=VALUE] [CONSEQUENT...] [DEFAULT] [DEFAULT-CONSEQUENT]

Description:

For each NAME=VALUE pair, the value of NAME is string-wise compared with VALUE. If they are identical, then the corresponding CONSEQUENT code is performed, and its value is the return value of the <var-case> form.

If none of the clauses match, and there is a default clause, then the DEFAULT-CONSEQUENT is evaluated, and its return value is the return value of the <var-case> form.

var-case is especially useful as a `traffic switch' to select one of several actions based on a user button press.

For example:

<var-case
   action="Save Files"      <save-files <get-var posted::files[]>>
   action="Delete Files"    <delete-files <get-var posted::files[]>>
   action="Rename Files"    <redirect
                                 rename-files.mhtml?<cgi-encode files>>>

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