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Text File | 1993-10-26 | 1.0 KB | 21 lines | [TEXT/$Tcl] |
-
-
- keylget listvar ?key? ?retvar | {}?
- Return the value associated with key from the keyed
- list in the variable listvar. If retvar is not speci-
- fied, 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 com-
- mand 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.
-