/usr/share/tcltk/tcllib1.19/doctools2base/config.tcl is in tcllib 1.19-dfsg-2.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
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#
# Generic configuration management, for use by import and export
# managers.
#
# Copyright (c) 2009 Andreas Kupries <andreas_kupries@sourceforge.net>
#
# See the file "license.terms" for information on usage and redistribution
# of this file, and for a DISCLAIMER OF ALL WARRANTIES.
#
# RCS: @(#) $Id: config.tcl,v 1.2 2011/11/17 08:00:45 andreas_kupries Exp $
# Each object manages a set of configuration variables.
# ### ### ### ######### ######### #########
## Requisites
package require Tcl 8.4
package require snit
# ### ### ### ######### ######### #########
## API
snit::type ::doctools::config {
# ### ### ### ######### ######### #########
## Options :: None
# ### ### ### ######### ######### #########
## Creating, destruction
# Default constructor.
# Default destructor.
# ### ### ### ######### ######### #########
## Public methods. Reading and writing the configuration.
method names {} {
return [array names myconfiguration]
}
method get {} {
return [array get myconfiguration]
}
method set {name {value {}}} {
# 7 instead of 3 in the condition below, because of the 4
# implicit arguments snit is providing to each method.
if {[llength [info level 0]] == 7} {
set myconfiguration($name) $value
} elseif {![info exists myconfiguration($name)]} {
return -code error "can't read \"$name\": no such variable"
}
return $myconfiguration($name)
}
method unset {args} {
if {![llength $args]} { lappend args * }
foreach pattern $args {
array unset myconfiguration $pattern
}
return
}
# ### ### ### ######### ######### #########
## Internal methods :: None.
# ### ### ### ######### ######### #########
## State :: Configuration data, Tcl array
variable myconfiguration -array {}
##
# ### ### ### ######### ######### #########
}
# ### ### ### ######### ######### #########
## Ready
package provide doctools::config 0.1
return
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