home *** CD-ROM | disk | FTP | other *** search
Text File | 1993-10-26 | 982 b | 23 lines | [TEXT/$Tcl] |
-
- set varName ?value?
-
-
- DESCRIPTION
- Returns the value of variable varName. If value is speci-
- fied, then set the value of varName to value, creating a new
- variable if one doesn't already exist, and return its value.
- If varName contains an open parenthesis and ends with a
- close parenthesis, then it refers to an array element: the
- characters before the first open parenthesis are the name of
- the array, and the characters between the parentheses are
- the index within the array. Otherwise varName refers to a
- scalar variable. If no procedure is active, then varName
- refers to a global variable. If a procedure is active, then
- varName refers to a parameter or local variable of the pro-
- cedure unless the global command has been invoked to declare
- varName to be global.
-
-
- KEYWORDS
- read, write, variable
-