/usr/share/tcltk/tcllib1.16/inifile/ini.tcl is in tcllib 1.16-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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#
# Querying and modifying old-style windows configuration files (.ini)
#
# Copyright (c) 2003-2007 Aaron Faupell <afaupell@users.sourceforge.net>
# Copyright (c) 2008-2012 Andreas Kupries <andreas_kupries@users.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: ini.tcl,v 1.17 2012/01/05 21:04:55 andreas_kupries Exp $
package provide inifile 0.2.5
namespace eval ini {
variable nexthandle 0
variable commentchar \;
}
proc ::ini::open {ini {mode r+}} {
variable nexthandle
if { ![regexp {^(w|r)\+?$} $mode] } {
return -code error "$mode is not a valid access mode"
}
::set fh ini$nexthandle
::set tmp [::open $ini $mode]
fconfigure $tmp -translation crlf
namespace eval ::ini::$fh {
variable data; array set data {}
variable comments; array set comments {}
variable sections; array set sections {}
}
::set ::ini::${fh}::channel $tmp
::set ::ini::${fh}::file [_normalize $ini]
::set ::ini::${fh}::mode $mode
incr nexthandle
if { [string match "r*" $mode] } {
_loadfile $fh
}
return $fh
}
# close the file and delete all stored info about it
# this does not save any changes. see ::ini::commit
proc ::ini::close {fh} {
_valid_ns $fh
variable ::ini::${fh}::channel
::close $channel
namespace delete ::ini::$fh
return
}
# write all changes to disk
proc ::ini::commit {fh} {
_valid_ns $fh
variable ::ini::${fh}::data
variable ::ini::${fh}::comments
variable ::ini::${fh}::sections
variable ::ini::${fh}::channel
variable ::ini::${fh}::file
variable ::ini::${fh}::mode
variable commentchar
if { $mode == "r" } {
return -code error "cannot write to read-only file"
}
::close $channel
::set channel [::open $file w]
::set char $commentchar
#seek $channel 0 start
foreach sec [array names sections] {
if { [info exists comments($sec)] } {
puts $channel "$char [join $comments($sec) "\n$char "]\n"
}
puts $channel "\[$sec\]"
foreach key [lsort -dictionary [array names data [_globescape $sec]\000*]] {
::set key [lindex [split $key \000] 1]
if {[info exists comments($sec\000$key)]} {
puts $channel "$char [join $comments($sec\000$key) "\n$char "]"
}
puts $channel "$key=$data($sec\000$key)"
}
puts $channel ""
}
::close $channel
::set channel [::open $file r+]
return
}
# internal command to read in a file
# see open and revert for public commands
proc ::ini::_loadfile {fh} {
variable ::ini::${fh}::data
variable ::ini::${fh}::comments
variable ::ini::${fh}::sections
variable ::ini::${fh}::channel
variable ::ini::${fh}::file
variable ::ini::${fh}::mode
variable commentchar
::set cur {}
::set com {}
::set char $commentchar
seek $channel 0 start
foreach line [split [read $channel] "\n"] {
if { [string match "$char*" $line] } {
lappend com [string trim [string range $line [string length $char] end]]
} elseif { [string match {\[*\]} $line] } {
::set cur [string range $line 1 end-1]
if { $cur == "" } { continue }
::set sections($cur) 1
if { $com != "" } {
::set comments($cur) $com
::set com {}
}
} elseif { [string match {*=*} $line] } {
::set line [split $line =]
::set key [string trim [lindex $line 0]]
if { $key == "" || $cur == "" } { continue }
::set value [string trim [join [lrange $line 1 end] =]]
if { [regexp "^(\".*\")\s+${char}(.*)$" $value -> 1 2] } {
::set value $1
lappend com $2
}
::set data($cur\000$key) $value
if { $com != "" } {
::set comments($cur\000$key) $com
::set com {}
}
}
}
return
}
# internal command to escape glob special characters
proc ::ini::_globescape {string} {
return [string map {* \\* ? \\? \\ \\\\ \[ \\\[ \] \\\]} $string]
}
# internal command to check if a section or key is nonexistant
proc ::ini::_exists {fh sec args} {
variable ::ini::${fh}::sections
variable ::ini::${fh}::data
if { ![info exists sections($sec)] } {
return -code error "no such section \"$sec\""
}
if { [llength $args] > 0 } {
::set key [lindex $args 0]
if { ![info exists data($sec\000$key)] } {
return -code error "can't read key \"$key\""
}
}
return
}
# internal command to check validity of a handle
if { [package vcompare [package provide Tcl] 8.4] < 0 } {
proc ::ini::_normalize {path} {
return $path
}
proc ::ini::_valid_ns {name} {
variable ::ini::${name}::data
if { ![info exists data] } {
return -code error "$name is not an open INI file"
}
}
} else {
proc ::ini::_normalize {path} {
file normalize $path
}
proc ::ini::_valid_ns {name} {
if { ![namespace exists ::ini::$name] } {
return -code error "$name is not an open INI file"
}
}
}
# get and set the ini comment character
proc ::ini::commentchar { {new {}} } {
variable commentchar
if {$new != ""} {
if {[string length $new] > 1} {
return -code error "comment char must be a single character"
}
::set commentchar $new
}
return $commentchar
}
# return all section names
proc ::ini::sections {fh} {
_valid_ns $fh
variable ::ini::${fh}::sections
return [array names sections]
}
# return boolean indicating existance of section or key in section
proc ::ini::exists {fh sec {key {}}} {
_valid_ns $fh
variable ::ini::${fh}::sections
variable ::ini::${fh}::data
if { $key == "" } {
return [info exists sections($sec)]
}
return [info exists data($sec\000$key)]
}
# return all key names of section
# error if section is nonexistant
proc ::ini::keys {fh sec} {
_valid_ns $fh
_exists $fh $sec
variable ::ini::${fh}::data
::set keys {}
foreach x [array names data [_globescape $sec]\000*] {
lappend keys [lindex [split $x \000] 1]
}
return $keys
}
# return all key value pairs of section
# error if section is nonexistant
proc ::ini::get {fh sec} {
_valid_ns $fh
_exists $fh $sec
variable ::ini::${fh}::data
::set r {}
foreach x [array names data [_globescape $sec]\000*] {
lappend r [lindex [split $x \000] 1] $data($x)
}
return $r
}
# return the value of a key
# return default value if key or section is nonexistant otherwise error
proc ::ini::value {fh sec key {default {}}} {
_valid_ns $fh
variable ::ini::${fh}::data
if {$default != "" && ![info exists data($sec\000$key)]} {
return $default
}
_exists $fh $sec $key
return [::set data($sec\000$key)]
}
# set the value of a key
# new section or key names are created
proc ::ini::set {fh sec key value} {
_valid_ns $fh
variable ::ini::${fh}::sections
variable ::ini::${fh}::data
::set sec [string trim $sec]
::set key [string trim $key]
if { $sec == "" || $key == "" } {
error "section or key may not be empty"
}
::set data($sec\000$key) $value
::set sections($sec) 1
return $value
}
# delete a key or an entire section
# may delete nonexistant keys and sections
proc ::ini::delete {fh sec {key {}}} {
_valid_ns $fh
variable ::ini::${fh}::sections
variable ::ini::${fh}::data
if { $key == "" } {
array unset data [_globescape $sec]\000*
array unset sections [_globescape $sec]
}
catch {unset data($sec\000$key)}
}
# read and set comments for sections and keys
# may comment nonexistant sections and keys
proc ::ini::comment {fh sec key args} {
_valid_ns $fh
variable ::ini::${fh}::comments
::set r $sec
if { $key != "" } { append r \000$key }
if { [llength $args] == 0 } {
if { ![info exists comments($r)] } { return {} }
return $comments($r)
}
if { [llength $args] == 1 && [lindex $args 0] == "" } {
unset -nocomplain comments($r)
return {}
}
# take care of any embedded newlines
for {::set i 0} {$i < [llength $args]} {incr i} {
::set args [eval [list lreplace $args $i $i] [split [lindex $args $i] \n]]
}
eval [list lappend comments($r)] $args
}
# return the physical filename for the handle
proc ::ini::filename {fh} {
_valid_ns $fh
variable ::ini::${fh}::file
return $file
}
# reload the file from disk losing all changes since the last commit
proc ::ini::revert {fh} {
_valid_ns $fh
namespace eval ::ini::$fh {
array set data {}
array set comments {}
array set sections {}
}
if { ![string match "w*" $mode] } {
_loadfile $fh
}
}
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