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# # tcllib.tcl -- # # Various command dealing with tlib package libraries. #------------------------------------------------------------------------------ # Copyright 1992-1999 Karl Lehenbauer and Mark Diekhans. # # Permission to use, copy, modify, and distribute this software and its # documentation for any purpose and without fee is hereby granted, provided # that the above copyright notice appear in all copies. Karl Lehenbauer and # Mark Diekhans make no representations about the suitability of this # software for any purpose. It is provided "as is" without express or # implied warranty. #------------------------------------------------------------------------------ # Copyright (c) 1991-1994 The Regents of the University of California. # All rights reserved. # # Permission is hereby granted, without written agreement and without # license or royalty fees, to use, copy, modify, and distribute this # software and its documentation for any purpose, provided that the # above copyright notice and the following two paragraphs appear in # all copies of this software. # # IN NO EVENT SHALL THE UNIVERSITY OF CALIFORNIA BE LIABLE TO ANY PARTY FOR # DIRECT, INDIRECT, SPECIAL, INCIDENTAL, OR CONSEQUENTIAL DAMAGES ARISING OUT # OF THE USE OF THIS SOFTWARE AND ITS DOCUMENTATION, EVEN IF THE UNIVERSITY OF # CALIFORNIA HAS BEEN ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. # # THE UNIVERSITY OF CALIFORNIA SPECIFICALLY DISCLAIMS ANY WARRANTIES, # INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY # AND FITNESS FOR A PARTICULAR PURPOSE. THE SOFTWARE PROVIDED HEREUNDER IS # ON AN "AS IS" BASIS, AND THE UNIVERSITY OF CALIFORNIA HAS NO OBLIGATION TO # PROVIDE MAINTENANCE, SUPPORT, UPDATES, ENHANCEMENTS, OR MODIFICATIONS. #------------------------------------------------------------------------------ # $Id: tcllib.tcl,v 1.1 2001/10/24 23:31:48 hobbs Exp $ #------------------------------------------------------------------------------ # #@package: TclX-libraries searchpath auto_load_file #------------------------------------------------------------------------------ # searchpath: # Search a path list for a file. (catch is for bad ~user) # proc searchpath {pathlist file} { foreach dir $pathlist { if {$dir == ""} {set dir .} if {[catch {file exists $dir/$file} result] == 0 && $result} { return $dir/$file } } return {} } #------------------------------------------------------------------------------ # auto_load_file: # Search auto_path for a file and source it. # proc auto_load_file {name} { global auto_path errorCode if {[string first / $name] >= 0} { return [uplevel 1 source $name] } set where [searchpath $auto_path $name] if [lempty $where] { error "couldn't find $name in any directory in auto_path" } uplevel 1 source $where } #@package: TclX-lib-list auto_packages auto_commands #------------------------------------------------------------------------------ # auto_packages: # List all of the loadable packages. If -files is specified, the file paths # of the packages is also returned. proc auto_packages {{option {}}} { global auto_pkg_index auto_load ;# Make sure all indexes are loaded. if ![info exists auto_pkg_index] { return {} } set packList [array names auto_pkg_index] if [lempty $option] { return $packList } if {$option != "-files"} { error "Unknow option \"$option\", expected \"-files\"" } set locList {} foreach pack $packList { lappend locList [list $pack [lindex $auto_pkg_index($pack) 0]] } return $locList } #------------------------------------------------------------------------------ # auto_commands: # List all of the loadable commands. If -loaders is specified, the commands # that will be involked to load the commands is also returned. proc auto_commands {{option {}}} { global auto_index auto_load ;# Make sure all indexes are loaded. if ![info exists auto_index] { return {} } set cmdList [array names auto_index] if [lempty $option] { return $cmdList } if {$option != "-loaders"} { error "Unknow option \"$option\", expected \"-loaders\"" } set loadList {} foreach cmd $cmdList { lappend loadList [list $cmd $auto_index($cmd)] } return $loadList }
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