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-
-
- keylget listvar [key [retvar | {}]]
- Return the value associated with key from the keyed
- list in the variable listvar. If retvar is not
- specified, then the value will be returned as the
- result of the command. In this case, if key is not
- found in the list, an error will result.
-
- If retvar is specified and key is in the list, then the
- value is returned in the variable retvar and the
- command returns 1 if the key was present within the
- list. If key isn't in the list, the command will
- return 0, and retvar will be left unchanged. If {} is
- specified for retvar, the value is not returned,
- allowing the Tcl programmer to determine if a key is
- present in a keyed list without setting a variable as a
- side-effect.
-
- If key is omitted, then a list of all the keys in the
- keyed list is returned.
-