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/* ***** BEGIN LICENSE BLOCK *****
* Version: MPL 1.1/GPL 2
*
* The contents of this file are subject to the Mozilla Public License Version
* 1.1 (the "License"); you may not use this file except in compliance with
* the License. You may obtain a copy of the License at
* http://www.mozilla.org/MPL/
*
* Software distributed under the License is distributed on an "AS IS" basis,
* WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
* for the specific language governing rights and limitations under the
* License.
*
* The Original Code is the Floater Bridge Network.
*
* The Initial Developer of the Original Code is
* Geoff Pike <pike@EECS.Berkeley.EDU>.
* Portions created by the Initial Developer are Copyright (C) 1996-2003
* the Initial Developer. All Rights Reserved.
*
* Contributor(s):
*
* Alternatively, the contents of this file may be used under the
* terms of either the GNU General Public License Version 2 or later
* (the "GPL"), in which case the provisions of the GPL are applicable
* instead of those above. If you wish to allow use of your version of
* this file only under the terms of the GPL, and not to allow others
* to use your version of this file under the terms of the MPL,
* indicate your decision by deleting the provisions above and replace
* them with the notice and other provisions required by the GPL. If
* you do not delete the provisions above, a recipient may use your
* version of this file under the terms of either the MPL or the GPL.
* ***** END LICENSE BLOCK ***** */
//if a isn't set yet, set it to b; otherwise do nothing
proc tryset {a b} {
if {[set x [string first "(" $a]] == -1} {
global $a
} else {
global [string range $a 0 [incr x -1]]
}
if [catch {set $a}] {set $a $b}
}
//like set, but for globals
proc gset {a {b salami_on_rye}} {
if {[set x [string first "(" $a]] == -1} {
global $a
} else {
global [string range $a 0 [incr x -1]]
}
if ![string compare $b salami_on_rye] {set $a} {set $a $b}
}
//like unset, but for globals
proc gunset {a} {
if {[set x [string first "(" $a]] == -1} {
global $a
} else {
global [string range $a 0 [incr x -1]]
}
unset $a
}
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