148 files changed, 686 insertions, 158 deletions

diff --git a/library/clock.tcl b/library/clock.tcl
index 67d15b1..982395a 100644..100755
--- a/library/clock.tcl
+++ b/library/clock.tcl
@@ -19,7 +19,7 @@
 # access to the Registry on Windows systems.
 
 uplevel \#0 {
-    package require msgcat 1.4
+    package require msgcat 1.6
     if { $::tcl_platform(platform) eq {windows} } {
 	if { [catch { package require registry 1.1 }] } {
 	    namespace eval ::tcl::clock [list variable NoRegistry {}]
@@ -58,8 +58,8 @@ namespace eval ::tcl::clock {
 
     # Import the message catalog commands that we use.
 
-    namespace import ::msgcat::mcload
-    namespace import ::msgcat::mclocale
+    namespace import ::msgcat::mc
+    namespace import ::msgcat::mcpackagelocale
 
 }
 
@@ -106,6 +106,10 @@ proc ::tcl::clock::Initialize {} {
     }
     InitTZData
 
+    mcpackagelocale set {}
+    ::msgcat::mcpackageconfig set mcfolder [file join $LibDir msgs]
+    ::msgcat::mcpackageconfig set unknowncmd ""
+
     # Define the message catalog for the root locale.
 
     ::msgcat::mcmset {} {
@@ -249,7 +253,6 @@ proc ::tcl::clock::Initialize {} {
     # Define the directories for time zone data and message catalogs.
 
     variable DataDir [file join $LibDir tzdata]
-    variable MsgDir [file join $LibDir msgs]
 
     # Number of days in the months, in common years and leap years.
 
@@ -623,11 +626,6 @@ proc ::tcl::clock::Initialize {} {
 					# in the given locales and dictionaries
 					# mapping the numerals to their numeric
 					# values.
-    variable McLoaded {};		# Dictionary whose keys are locales
-					# in which [mcload] has been executed
-					# and whose values are second-level
-    					# dictionaries indexed by message
-    					# name and giving message text.
     # variable CachedSystemTimeZone;    # If 'CachedSystemTimeZone' exists,
 					# it contains the value of the
 					# system time zone, as determined from
@@ -659,6 +657,7 @@ proc ::tcl::clock::Initialize {} {
 #----------------------------------------------------------------------
 
 proc ::tcl::clock::format { args } {
+
     variable FormatProc
     variable TZData
 
@@ -692,6 +691,7 @@ proc ::tcl::clock::format { args } {
     }
 
     return [$procName $clockval $timezone]
+
 }
 
 #----------------------------------------------------------------------
@@ -710,13 +710,14 @@ proc ::tcl::clock::format { args } {
 #----------------------------------------------------------------------
 
 proc ::tcl::clock::ParseClockFormatFormat {procName format locale} {
+
     if {[namespace which $procName] ne {}} {
 	return $procName
     }
 
     # Map away the locale-dependent composite format groups
 
-    EnterLocale $locale oldLocale
+    EnterLocale $locale
 
     # Change locale if a fresh locale has been given on the command line.
 
@@ -725,12 +726,6 @@ proc ::tcl::clock::ParseClockFormatFormat {procName format locale} {
     } trap CLOCK {result opts} {
 	dict unset opts -errorinfo
 	return -options $opts $result
-    } finally {
-	# Restore the locale
-
-	if { [info exists oldLocale] } {
-	    mclocale $oldLocale
-	}
     }
 }
 
@@ -1181,6 +1176,7 @@ proc ::tcl::clock::ParseClockFormatFormat2 {format locale procName} {
 #----------------------------------------------------------------------
 
 proc ::tcl::clock::scan { args } {
+
     set format {}
 
     # Check the count of args
@@ -1264,7 +1260,7 @@ proc ::tcl::clock::scan { args } {
 
     # Change locale if a fresh locale has been given on the command line.
 
-    EnterLocale $locale oldLocale
+    EnterLocale $locale
 
     try {
 	# Map away the locale-dependent composite format groups
@@ -1276,12 +1272,6 @@ proc ::tcl::clock::scan { args } {
 
 	dict unset opts -errorinfo
 	return -options $opts $result
-    } finally {
-	# Restore the locale
-
-	if { [info exists oldLocale] } {
-	    mclocale $oldLocale
-	}
     }
 }
 
@@ -1304,6 +1294,7 @@ proc ::tcl::clock::scan { args } {
 #----------------------------------------------------------------------
 
 proc ::tcl::clock::FreeScan { string base timezone locale } {
+
     variable TZData
 
     # Get the data for time changes in the given zone
@@ -1431,6 +1422,7 @@ proc ::tcl::clock::FreeScan { string base timezone locale } {
 	set date2 [ConvertLocalToUTC $date2[set date2 {}] $TZData($timezone) \
 		       2361222]
 	set seconds [dict get $date2 seconds]
+
     }
 
     # Do relative month
@@ -2155,6 +2147,7 @@ proc ::tcl::clock::UniquePrefixRegexp { data } {
 proc ::tcl::clock::MakeUniquePrefixRegexp { successors
 					  uniquePrefixMapping
 					  prefixString } {
+
     # Get the characters that may follow the current prefix string
 
     set schars [lsort -ascii [dict keys [dict get $successors $prefixString]]]
@@ -2224,6 +2217,7 @@ proc ::tcl::clock::MakeUniquePrefixRegexp { successors
 #----------------------------------------------------------------------
 
 proc ::tcl::clock::MakeParseCodeFromFields { dateFields parseActions } {
+
     set currPrio 999
     set currFieldPos [list]
     set currCodeBurst {
@@ -2310,13 +2304,7 @@ proc ::tcl::clock::MakeParseCodeFromFields { dateFields parseActions } {
 #
 #----------------------------------------------------------------------
 
-proc ::tcl::clock::EnterLocale { locale oldLocaleVar } {
-    upvar 1 $oldLocaleVar oldLocale
-
-    variable MsgDir
-    variable McLoaded
-
-    set oldLocale [mclocale]
+proc ::tcl::clock::EnterLocale { locale } {
     if { $locale eq {system} } {
 	if { $::tcl_platform(platform) ne {windows} } {
 	    # On a non-windows platform, the 'system' locale is the same as
@@ -2329,33 +2317,22 @@ proc ::tcl::clock::EnterLocale { locale oldLocaleVar } {
 	    # Control Panel.  First, load the 'current' locale if it's not yet
 	    # loaded
 
-	    if {![dict exists $McLoaded $oldLocale] } {
-		mcload $MsgDir
-		dict set McLoaded $oldLocale {}
-	    }
+	    mcpackagelocale [mclocale]
 
 	    # Make a new locale string for the system locale, and get the
 	    # Control Panel information
 
-	    set locale ${oldLocale}_windows
-	    if { ![dict exists $McLoaded $locale] } {
+	    set locale [mclocale]_windows
+	    if { $locale ni [::msgcat::mcpackagelocale loaded] } {
 		LoadWindowsDateTimeFormats $locale
-		dict set McLoaded $locale {}
 	    }
 	}
     }
     if { $locale eq {current}} {
-	set locale $oldLocale
-	unset oldLocale
-    } elseif { $locale eq $oldLocale } {
-	unset oldLocale
-    } else {
-	mclocale $locale
-    }
-    if { ![dict exists $McLoaded $locale] } {
-	mcload $MsgDir
-	dict set McLoaded $locale {}
+	set locale [mclocale]
     }
+    # Eventually load the locale
+    mcpackagelocale set $locale
 }
 
 #----------------------------------------------------------------------
@@ -2482,6 +2459,7 @@ proc ::tcl::clock::LoadWindowsDateTimeFormats { locale } {
     }
 
     return
+
 }
 
 #----------------------------------------------------------------------
@@ -2505,13 +2483,13 @@ proc ::tcl::clock::LoadWindowsDateTimeFormats { locale } {
 #----------------------------------------------------------------------
 
 proc ::tcl::clock::LocalizeFormat { locale format } {
-    variable McLoaded
 
-    if { [dict exists $McLoaded $locale FORMAT $format] } {
-	return [dict get $McLoaded $locale FORMAT $format]
-    }
-    set inFormat $format
+    # message catalog key to cache this format
+    set key FORMAT_$format
 
+    if { [::msgcat::mcexists -exactlocale -exactnamespace $key] } {
+	return [mc $key]
+    }
     # Handle locale-dependent format groups by mapping them out of the format
     # string.  Note that the order of the [string map] operations is
     # significant because later formats can refer to later ones; for example
@@ -2534,7 +2512,7 @@ proc ::tcl::clock::LocalizeFormat { locale format } {
     lappend list %Ec [string map $list [mc LOCALE_DATE_TIME_FORMAT]]
     set format [string map $list $format]
 
-    dict set McLoaded $locale FORMAT $inFormat $format
+    mcset $locale $key $format
     return $format
 }
 
@@ -3133,7 +3111,6 @@ proc ::tcl::clock::SetupTimeZone { timezone } {
 		    -errorcode [list CLOCK badTimeZone $timezone] \
 		    "time zone \"$timezone\" not found"
 	    }
-
 	} elseif { ![catch {ParsePosixTimeZone $timezone} tzfields] } {
 	    # This looks like a POSIX time zone - try to process it
 
@@ -3901,6 +3878,7 @@ proc ::tcl::clock::ProcessPosixTimeZone { z } {
 #----------------------------------------------------------------------
 
 proc ::tcl::clock::DeterminePosixDSTTime { z bound y } {
+
     variable FEB_28
 
     # Determine the start or end day of DST
@@ -3908,6 +3886,7 @@ proc ::tcl::clock::DeterminePosixDSTTime { z bound y } {
     set date [dict create era CE year $y]
     set doy [dict get $z ${bound}DayOfYear]
     if { $doy ne {} } {
+
 	# Time was specified as a day of the year
 
 	if { [dict get $z ${bound}J] ne {}
@@ -4319,7 +4298,7 @@ proc ::tcl::clock::add { clockval args } {
 	set timezone :GMT
     }
 
-    EnterLocale $locale oldLocale
+    EnterLocale $locale
 
     set changeover [mc GREGORIAN_CHANGE_DATE]
 
@@ -4371,12 +4350,6 @@ proc ::tcl::clock::add { clockval args } {
 	# Conceal the innards of [clock] when it's an expected error
 	dict unset opts -errorinfo
 	return -options $opts $result
-    } finally {
-	# Restore the locale
-
-	if { [info exists oldLocale] } {
-	    mclocale $oldLocale
-	}
     }
 }
 
@@ -4402,6 +4375,7 @@ proc ::tcl::clock::add { clockval args } {
 #----------------------------------------------------------------------
 
 proc ::tcl::clock::AddMonths { months clockval timezone changeover } {
+
     variable DaysInRomanMonthInCommonYear
     variable DaysInRomanMonthInLeapYear
     variable TZData
@@ -4449,6 +4423,7 @@ proc ::tcl::clock::AddMonths { months clockval timezone changeover } {
 		 $changeover]
 
     return [dict get $date seconds]
+
 }
 
 #----------------------------------------------------------------------
@@ -4499,38 +4474,7 @@ proc ::tcl::clock::AddDays { days clockval timezone changeover } {
 		  $changeover]
 
     return [dict get $date seconds]
-}
-
-#----------------------------------------------------------------------
-#
-# mc --
-#
-#	Wrapper around ::msgcat::mc that caches the result according to the
-#	locale.
-#
-# Parameters:
-#	Accepts the name of the message to retrieve.
-#
-# Results:
-#	Returns the message text.
-#
-# Side effects:
-#	Caches the message text.
-#
-# Notes:
-#	Only the single-argument version of [mc] is supported.
-#
-#----------------------------------------------------------------------
 
-proc ::tcl::clock::mc { name } {
-    variable McLoaded
-    set Locale [mclocale]
-    if { [dict exists $McLoaded $Locale $name] } {
-	return [dict get $McLoaded $Locale $name]
-    }
-    set val [::msgcat::mc $name]
-    dict set McLoaded $Locale $name $val
-    return $val
 }
 
 #----------------------------------------------------------------------
@@ -4553,7 +4497,6 @@ proc ::tcl::clock::mc { name } {
 proc ::tcl::clock::ClearCaches {} {
     variable FormatProc
     variable LocaleNumeralCache
-    variable McLoaded
     variable CachedSystemTimeZone
     variable TimeZoneBad
 
@@ -4566,7 +4509,9 @@ proc ::tcl::clock::ClearCaches {} {
 
     catch {unset FormatProc}
     set LocaleNumeralCache {}
-    set McLoaded {}
+    # this removes many required keys and makes the module unusable
+    mcpackagelocale set ""
+    mcpackagelocale clear
     catch {unset CachedSystemTimeZone}
     set TimeZoneBad {}
     InitTZData
diff --git a/library/encoding/tis-620.enc b/library/encoding/tis-620.enc
index c233be5..c233be5 100644..100755
--- a/library/encoding/tis-620.enc
+++ b/library/encoding/tis-620.enc
diff --git a/library/msgcat/msgcat.tcl b/library/msgcat/msgcat.tcl
index cf3b9d7..b217634 100644..100755
--- a/library/msgcat/msgcat.tcl
+++ b/library/msgcat/msgcat.tcl
@@ -13,23 +13,30 @@
 package require Tcl 8.5
 # When the version number changes, be sure to update the pkgIndex.tcl file,
 # and the installation directory in the Makefiles.
-package provide msgcat 1.5.2
+package provide msgcat 1.6.0
 
 namespace eval msgcat {
-    namespace export mc mcload mclocale mcmax mcmset mcpreferences mcset \
-	    mcunknown mcflset mcflmset
-
-    # Records the current locale as passed to mclocale
-    variable Locale ""
+    namespace export mc mcexists mcload mclocale mcmax mcmset mcpreferences mcset\
+            mcunknown mcflset mcflmset mcloadedlocales mcforgetpackage\
+	    mcpackageconfig mcpackagelocale
 
     # Records the list of locales to search
     variable Loclist {}
 
+    # List of currently loaded locales
+    variable LoadedLocales {}
+
     # Records the locale of the currently sourced message catalogue file
     variable FileLocale
 
+    # Configuration values per Package (e.g. client namespace).
+    # The dict key is of the form "<option> <namespace>" and the value is the
+    # configuration option. A nonexisting key is an unset option.
+    variable PackageConfig [dict create mcfolder {} loadcmd {} changecmd {}\
+	    unknowncmd {} loadedlocales {} loclist {}]
+
     # Records the mapping between source strings and translated strings.  The
-    # dict key is of the form "<locale> <namespace> <src>", where locale and
+    # dict key is of the form "<namespace> <locale> <src>", where locale and
     # namespace should be themselves dict values and the value is
     # the translated string.
     variable Msgs [dict create]
@@ -173,6 +180,8 @@ namespace eval msgcat {
 #	parent namespace until the source is found.  If additional args are
 #	specified, use the format command to work them into the traslated
 #	string.
+#	If no catalog item is found, mcunknown is called in the caller frame
+#	and its result is returned.
 #
 # Arguments:
 #	src	The string to translate.
@@ -183,30 +192,86 @@ namespace eval msgcat {
 #	format command.
 
 proc msgcat::mc {src args} {
+    # this may be replaced by:
+    # return [mcget -namespace [uplevel 1 [list ::namespace current]] --\
+    #	    $src {*}$args]
+
     # Check for the src in each namespace starting from the local and
     # ending in the global.
 
     variable Msgs
     variable Loclist
-    variable Locale
 
     set ns [uplevel 1 [list ::namespace current]]
+    set loclist [PackagePreferences $ns]
 
-    while {$ns != ""} {
-	foreach loc $Loclist {
-	    if {[dict exists $Msgs $loc $ns $src]} {
-		if {[llength $args] == 0} {
-		    return [dict get $Msgs $loc $ns $src]
-		} else {
-		    return [format [dict get $Msgs $loc $ns $src] {*}$args]
-		}
+    set nscur $ns
+    while {$nscur != ""} {
+	foreach loc $loclist {
+	    if {[dict exists $Msgs $nscur $loc $src]} {
+		return [DefaultUnknown "" [dict get $Msgs $nscur $loc $src]\
+			{*}$args]
+	    }
+	}
+	set nscur [namespace parent $nscur]
+    }
+    # call package local or default unknown command
+    set args [linsert $args 0 [lindex $loclist 0] $src]
+    switch -exact -- [Invoke unknowncmd $args $ns result] {
+	0 { return [uplevel 1 [linsert $args 0 [namespace origin mcunknown]]] }
+	1 { return [DefaultUnknown {*}$args] }
+	default { return $result }
+    }
+}
+
+# msgcat::mcexists --
+#
+#	Check if a catalog item is set or if mc would invoke mcunknown.
+#
+# Arguments:
+#	-exactnamespace		Only check the exact namespace and no
+#				parent namespaces
+#	-exactlocale		Only check the exact locale and not all members
+#				of the preferences list
+#	src			Message catalog key
+#
+# Results:
+#	true if an adequate catalog key was found
+
+proc msgcat::mcexists {args} {
+
+    variable Msgs
+    variable Loclist
+    variable PackageConfig
+
+    set ns [uplevel 1 [list ::namespace current]]
+    set loclist [PackagePreferences $ns]
+
+    while {[llength $args] > 1} {
+	set args [lassign $args option]
+	switch -glob -- $option {
+	    -exactnamespace { set exactnamespace 1 }
+	    -exactlocale { set loclist [lrange $loclist 0 0] }
+	    -* { return -code error "unknown option \"$option\"" }
+	    default {
+		return -code error "wrong # args: should be\
+			\"[lindex [info level 0] 0] ?-exactnamespace?\
+			?-exactlocale? src\""
 	    }
 	}
+    }
+    set src [lindex $args 0]
+    
+    while {$ns ne ""} {
+	foreach loc $loclist {
+	    if {[dict exists $Msgs $ns $loc $src]} {
+		return 1
+	    }
+	}
+	if {[info exists exactnamespace]} {return 0}
 	set ns [namespace parent $ns]
     }
-    # we have not found the translation
-    return [uplevel 1 [list [namespace origin mcunknown] \
-	    $Locale $src {*}$args]]
+    return 0
 }
 
 # msgcat::mclocale --
@@ -219,11 +284,11 @@ proc msgcat::mc {src args} {
 #			separated by underscores (e.g. en_US).
 #
 # Results:
-#	Returns the current locale.
+#	Returns the normalized set locale.
 
 proc msgcat::mclocale {args} {
     variable Loclist
-    variable Locale
+    variable LoadedLocales
     set len [llength $args]
 
     if {$len > 1} {
@@ -232,24 +297,49 @@ proc msgcat::mclocale {args} {
     }
 
     if {$len == 1} {
-	set newLocale [lindex $args 0]
+	set newLocale [string tolower [lindex $args 0]]
 	if {$newLocale ne [file tail $newLocale]} {
 	    return -code error "invalid newLocale value \"$newLocale\":\
 		    could be path to unsafe code."
 	}
-	set Locale [string tolower $newLocale]
-	set Loclist {}
-	set word ""
-	foreach part [split $Locale _] {
-	    set word [string trim "${word}_${part}" _]
-	    if {$word ne [lindex $Loclist 0]} {
-		set Loclist [linsert $Loclist 0 $word]
-	    }
+	if {[lindex $Loclist 0] ne $newLocale} {
+	    set Loclist [GetPreferences $newLocale]
+	    
+	    # locale not loaded jet
+	    LoadAll $Loclist
+	    # Invoke callback
+	    Invoke changecmd $Loclist
+	}
+    }
+    return [lindex $Loclist 0]
+}
+
+# msgcat::GetPreferences --
+#
+#	Get list of locales from a locale.
+#	The first element is always the lowercase locale.
+#	Other elements have one component separated by "_" less.
+#	Multiple "_" are seen as one separator: de__ch_spec de__ch de {}
+#
+# Arguments:
+#	Locale.
+#
+# Results:
+#	Locale list
+
+proc msgcat::GetPreferences {locale} {
+    set locale [string tolower $locale]
+    set loclist [list $locale]
+    while {-1 !=[set pos [string last "_" $locale]]} {
+	set locale [string range $locale 0 $pos-1]
+	if { "_" ne [string index $locale end] } {
+	    lappend loclist $locale
 	}
-	lappend Loclist {}
-	set Locale [lindex $Loclist 0]
     }
-    return $Locale
+    if {"" ne [lindex $loclist end]} {
+	lappend loclist {}
+    }
+    return $loclist
 }
 
 # msgcat::mcpreferences --
@@ -268,6 +358,381 @@ proc msgcat::mcpreferences {} {
     return $Loclist
 }
 
+# msgcat::mcloadedlocales --
+#
+#	Get or change the list of currently loaded default locales
+#
+#	The following subcommands are available:
+#	loaded
+#	    Get the current list of loaded locales
+#	clear
+#	    Remove all loaded locales not present in mcpreferences.
+#
+# Arguments:
+#	subcommand		One of loaded or clear
+#
+# Results:
+#	Empty string, if not stated differently for the subcommand
+
+proc msgcat::mcloadedlocales {subcommand} {
+    variable Loclist
+    variable LoadedLocales
+    variable Msgs
+    variable PackageConfig
+    switch -exact -- $subcommand {
+	clear {
+	    # Remove all locales not contained in Loclist
+	    # skip any packages with package locale
+	    set LoadedLocales $Loclist
+	    foreach ns [dict keys $Msgs] {
+		if {![dict exists $PackageConfig loclist $ns]} {
+		    foreach locale [dict keys [dict get $Msgs $ns]] {
+			if {$locale ni $Loclist} {
+			    dict unset Msgs $ns $locale
+			}
+		    }
+		}
+	    }
+	}
+	loaded { return $LoadedLocales }
+	default {
+	    return -code error "unknown subcommand \"$subcommand\": must be\
+		    clear, or loaded"
+	}
+    }
+    return
+}
+
+# msgcat::mcpackagelocale --
+#
+#	Get or change the package locale of the calling package.
+#
+#	The following subcommands are available:
+#	set
+#	    Set a package locale.
+#	    This may load message catalog files and may clear message catalog
+#	    items, if the former locale was the default locale.
+#	    Returns the normalized set locale.
+#	    The default locale is taken, if locale is not given.
+#	get
+#	    Get the locale valid for this package.
+#	isset
+#	    Returns true, if a package locale is set
+#	unset
+#	    Unset the package locale and activate the default locale.
+#	    This loads message catalog file which where missing in the package
+#	    locale.
+#	preferences
+#	    Return locale preference list valid for the package.
+#	loaded
+#	    Return loaded locale list valid for the current package.
+#	clear
+#	    If the current package has a package locale, remove all package
+#	    locales not containes in package mcpreferences.
+#	    It is an error to call this without a package locale set.
+#
+#	The subcommands get, preferences and loaded return the corresponding
+#	default data, if no package locale is set.
+#
+# Arguments:
+#	subcommand		One of get, init, present, add or remove
+#	locale			package locale (only set subcommand)
+#
+# Results:
+#	Empty string, if not stated differently for the subcommand
+
+proc msgcat::mcpackagelocale {subcommand {locale ""}} {
+    # todo: implement using an ensemble
+    variable Loclist
+    variable LoadedLocales
+    variable Msgs
+    variable PackageConfig
+    # Check option
+    # check if required item is exactly provided
+    if {[llength [info level 0]] == 2} {
+	# locale not given
+	unset locale
+    } else {
+	# locale given
+	if {$subcommand in
+		{"get" "isset" "unset" "preferences" "loaded" "clear"} } {
+	    return -code error "wrong # args: should be\
+		    \"[lrange [info level 0] 0 1]\""
+	}
+        set locale [string tolower $locale]
+    }
+    set ns [uplevel 1 {::namespace current}]
+    
+    switch -exact -- $subcommand {
+	get { return [lindex [PackagePreferences $ns] 0] }
+	preferences { return [PackagePreferences $ns] }
+	loaded { return [PackageLocales $ns] }
+	isset {	return [dict exists $PackageConfig loclist $ns] }
+	set {	# set a package locale or add a package locale
+		
+	    # Copy the default locale if no package locale set so far
+	    if {![dict exists $PackageConfig loclist $ns]} {
+		dict set PackageConfig loclist $ns $Loclist
+		dict set PackageConfig loadedlocales $ns $LoadedLocales
+	    }
+
+	    # Check if changed
+	    set loclist [dict get $PackageConfig loclist $ns]
+	    if {! [info exists locale] || $locale eq [lindex $loclist 0] } {
+		return [lindex $loclist 0]
+	    }
+
+	    # Change loclist
+	    set loclist [GetPreferences $locale]
+	    set locale [lindex $loclist 0]
+	    dict set PackageConfig loclist $ns $loclist
+
+	    # load eventual missing locales
+	    set loadedLocales [dict get $PackageConfig loadedlocales $ns]
+	    if {$locale in $loadedLocales} { return $locale }
+	    set loadLocales [ListComplement $loadedLocales $loclist]
+	    dict set PackageConfig loadedlocales $ns\
+		    [concat $loadedLocales $loadLocales]
+	    Load $ns $loadLocales
+	    return $locale
+	}
+	clear { # Remove all locales not contained in Loclist
+	    if {![dict exists $PackageConfig loclist $ns]} {
+		return -code error "clear only when package locale set"
+	    }
+	    set loclist [dict get $PackageConfig loclist $ns]
+	    dict set PackageConfig loadedlocales $ns $loclist
+	    if {[dict exists $Msgs $ns]} {
+		foreach locale [dict keys [dict get $Msgs $ns]] {
+		    if {$locale ni $loclist} {
+			dict unset Msgs $ns $locale
+		    }
+		}
+	    }
+	}
+	unset {	# unset package locale and restore default locales
+	    
+	    if { ![dict exists $PackageConfig loclist $ns] } { return }
+	    
+	    # unset package locale
+	    set loadLocales [ListComplement\
+		    [dict get $PackageConfig loadedlocales $ns] $LoadedLocales]
+	    dict unset PackageConfig loadedlocales $ns
+	    dict unset PackageConfig loclist $ns
+
+	    # Add missing locales
+	    Load $ns $loadLocales
+	}
+	default {
+	    return -code error "unknown subcommand \"$subcommand\": must be\
+		    clear, get, isset, loaded, present, set, or unset"
+	}
+    }
+    return
+}
+
+# msgcat::mcforgetpackage --
+#
+#	Remove any data of the calling package from msgcat
+#
+
+proc msgcat::mcforgetpackage {} {
+    # todo: this may be implemented using an ensemble
+    variable PackageConfig
+    variable Msgs
+    set ns [uplevel 1 {::namespace current}]
+    # Remove MC items
+    dict unset Msgs $ns
+    # Remove config items
+    foreach key [dict keys $PackageConfig] {
+	dict unset PackageConfig $key $ns
+    }
+    return
+}
+
+# msgcat::mcpackageconfig --
+#
+#	Get or modify the per caller namespace (e.g. packages) config options.
+#
+#	Available subcommands are:
+#
+#	    get		get the current value or an error if not set.
+#	    isset	return true, if the option is set
+#	    set		set the value (see also distinct option).
+#			Returns the number of loaded message files.
+#	    unset	Clear option. return "".
+#
+#	Available options are:
+#
+#	mcfolder
+#	    The message catalog folder of the package.
+#	    This is automatically set by mcload.
+#	    If the value is changed using the set subcommand, an evntual
+#	    loadcmd is invoked and all message files of the package locale are
+#	    loaded.
+#
+#	loadcmd
+#	    The command gets executed before a message file would be
+#	    sourced for this module.
+#	    The command is invoked with the expanded locale list to load.
+#	    The command is not invoked if the registering package namespace
+#	    is not present.
+#	    This callback might also be used as an alternative to message
+#	    files.
+#	    If the value is changed using the set subcommand, the callback is
+#	    directly invoked with the current file locale list. No file load is
+#	    executed.
+#
+#	changecmd
+#	    The command is invoked, after an executed locale change.
+#	    Appended argument is expanded mcpreferences.
+#
+#	unknowncmd
+#	    Use a package locale mcunknown procedure instead the global one.
+#	    The appended arguments are identical to mcunknown.
+#	    A default unknown handler is used if set to the empty string.
+#	    This consists in returning the key if no arguments are given.
+#	    With given arguments, format is used to process the arguments.
+#
+# Arguments:
+#	subcommand		Operation on the package
+#	option			The package option to get or set.
+#	?value?			Eventual value for the subcommand
+#
+# Results:
+#	Depends on the subcommand and option and is described there
+
+proc msgcat::mcpackageconfig {subcommand option {value ""}} {
+    variable PackageConfig
+    # get namespace
+    set ns [uplevel 1 {::namespace current}]
+
+    if {$option ni {"mcfolder" "loadcmd" "changecmd" "unknowncmd"}} {
+	return -code error "bad option \"$option\": must be mcfolder, loadcmd,\
+		changecmd, or unknowncmd"
+    }
+
+    # check if value argument is exactly provided
+    if {[llength [info level 0]] == 4 } {
+	# value provided
+	if {$subcommand in {"get" "isset" "unset"}} {
+	    return -code error "wrong # args: should be\
+		    \"[lrange [info level 0] 0 2] value\""
+	}
+    } elseif {$subcommand eq "set"} {
+        return -code error\
+		"wrong # args: should be \"[lrange [info level 0] 0 2]\""
+    }
+
+    # Execute subcommands
+    switch -exact -- $subcommand {
+	get {	# Operation get return current value
+	    if {![dict exists $PackageConfig $option $ns]} {
+		return -code error "package option \"$option\" not set"
+	    }
+	    return [dict get $PackageConfig $option $ns]
+	}
+	isset {	return [dict exists $PackageConfig $option $ns] }
+	unset {	dict unset PackageConfig $option $ns }
+	set {	# Set option
+	
+	    if {$option eq "mcfolder"} {
+		set value [file normalize $value]
+	    }
+	    # Check if changed
+	    if { [dict exists $PackageConfig $option $ns]
+		    && $value eq [dict get $PackageConfig $option $ns] } {
+		return 0
+	    }
+
+	    # set new value
+	    dict set PackageConfig $option $ns $value
+
+	    # Reload pending message catalogs
+	    switch -exact -- $option {
+		mcfolder { return [Load $ns [PackageLocales $ns]] }
+		loadcmd { return [Load $ns [PackageLocales $ns] 1] }
+	    }
+	    return 0
+	}
+	default {
+	    return -code error "unknown subcommand \"$subcommand\":\
+		    must be get, isset, unset, or set"
+	}
+    }
+    return
+}
+
+# msgcat::PackagePreferences --
+#
+#	Return eventual present package preferences or the default list if not
+#	present.
+#
+# Arguments:
+#	ns		Package namespace
+#
+# Results:
+#	locale list
+
+proc msgcat::PackagePreferences {ns} {
+    variable PackageConfig
+    if {[dict exists $PackageConfig loclist $ns]} {
+	return [dict get $PackageConfig loclist $ns]
+    }
+    variable Loclist
+    return $Loclist
+}
+
+# msgcat::PackageLocales --
+#
+#	Return eventual present package locales or the default list if not
+#	present.
+#
+# Arguments:
+#	ns		Package namespace
+#
+# Results:
+#	locale list
+
+proc msgcat::PackageLocales {ns} {
+    variable PackageConfig
+    if {[dict exists $PackageConfig loadedlocales $ns]} {
+	return [dict get $PackageConfig loadedlocales $ns]
+    }
+    variable LoadedLocales
+    return $LoadedLocales
+}
+
+# msgcat::ListComplement --
+#
+#	Build the complement of two lists.
+#	Return a list with all elements in list2 but not in list1.
+#	Optionally return the intersection.
+#
+# Arguments:
+#	list1		excluded list
+#	list2		included list
+#	inlistname	If not "", write in this variable the intersection list
+#
+# Results:
+#	list with all elements in list2 but not in list1
+
+proc msgcat::ListComplement {list1 list2 {inlistname ""}} {
+    if {"" ne $inlistname} {
+	upvar 1 $inlistname inlist
+    }
+    set inlist {}
+    set outlist {}
+    foreach item $list2 {
+	if {$item in $list1} {
+	    lappend inlist $item
+	} else {
+	    lappend outlist $item
+	}
+    }
+    return $outlist
+}
+
 # msgcat::mcload --
 #
 #	Attempt to load message catalogs for each locale in the
@@ -280,24 +745,88 @@ proc msgcat::mcpreferences {} {
 #	Returns the number of message catalogs that were loaded.
 
 proc msgcat::mcload {langdir} {
+    return [uplevel 1 [list\
+	    [namespace origin mcpackageconfig] set mcfolder $langdir]]
+}
+
+# msgcat::LoadAll --
+#
+#	Load a list of locales for all packages not having a package locale
+#	list.
+#
+# Arguments:
+#	langdir		The directory to search.
+#
+# Results:
+#	Returns the number of message catalogs that were loaded.
+
+proc msgcat::LoadAll {locales} {
+    variable PackageConfig
+    variable LoadedLocales
+    if {0 == [llength $locales]} { return {} }
+    # filter jet unloaded locales
+    set locales [ListComplement $LoadedLocales $locales]
+    if {0 == [llength $locales]} { return {} }
+    lappend LoadedLocales {*}$locales
+    
+    set packages [lsort -unique [concat\
+	    [dict keys [dict get $PackageConfig loadcmd]]\
+	    [dict keys [dict get $PackageConfig mcfolder]]]]
+    foreach ns $packages {
+	if {! [dict exists $PackageConfig loclist $ns] } {
+	    Load $ns $locales
+	}
+    }
+    return $locales
+}
+
+# msgcat::Load --
+#
+#	Invoke message load callback and load message catalog files.
+#
+# Arguments:
+#	ns		Namespace (equal package) to load the message catalog.
+#	locales		List of locales to load.
+#	callbackonly	true if only callback should be invoked
+#
+# Results:
+#	Returns the number of message catalogs that were loaded.
+
+proc msgcat::Load {ns locales {callbackonly 0}} {
     variable FileLocale
+    variable PackageConfig
+    variable LoadedLocals
+
+    if {0 == [llength $locales]} { return 0 }
+
+    # Invoke callback
+    Invoke loadcmd $locales $ns
+    
+    if {$callbackonly || ![dict exists $PackageConfig mcfolder $ns]} {
+	return 0
+    }
+
+    # Invoke file load
+    set langdir [dict get $PackageConfig mcfolder $ns]
+    
     # Save the file locale if we are recursively called
     if {[info exists FileLocale]} {
 	set nestedFileLocale $FileLocale
     }
     set x 0
-    foreach p [mcpreferences] {
+    foreach p $locales {
 	if {$p eq {}} {
 	    set p ROOT
 	}
 	set langfile [file join $langdir $p.msg]
 	if {[file exists $langfile]} {
 	    incr x
-	    set FileLocale [string tolower [file tail [file rootname $langfile]]]
+	    set FileLocale [string tolower\
+		    [file tail [file rootname $langfile]]]
 	    if {"root" eq $FileLocale} {
 		set FileLocale ""
 	    }
-	    uplevel 1 [list ::source -encoding utf-8 $langfile]
+	    namespace inscope $ns [list ::source -encoding utf-8 $langfile]
 	    unset FileLocale
 	}
     }
@@ -307,6 +836,52 @@ proc msgcat::mcload {langdir} {
     return $x
 }
 
+# msgcat::Invoke --
+#
+#	Invoke a set of registered callbacks.
+#	The callback is only invoked, if its registered namespace exists.
+#
+# Arguments:
+#	index		Index into PackageConfig to get callback command
+#	arglist		parameters to the callback invocation
+#	ns		(Optional) package to call.
+#			If not given or empty, check all registered packages.
+#	resultname	Variable to save the callback result of the last called
+#			callback to. May be set to "" to discard the result.
+#
+# Results:
+#	Possible values:
+#	- 0: no valid command registered
+#	- 1: registered command was the empty string
+#	- 2: registered command called, resultname is set
+#	If multiple commands are called, the maximum of all results is returned.
+
+proc msgcat::Invoke {index arglist {ns ""} {resultname ""}} {
+    variable PackageConfig
+    variable Config
+    if {"" ne $resultname} {
+	upvar 1 $resultname result
+    }
+    if {"" eq $ns} {
+	set packageList [dict keys [dict get $PackageConfig $index]]
+    } else {
+	set packageList [list $ns]
+    }
+    set ret 0
+    foreach ns $packageList {
+	if {[dict exists $PackageConfig $index $ns] && [namespace exists $ns]} {
+	    set cmd [dict get $PackageConfig $index $ns]
+	    if {"" eq $cmd} {
+		if {$ret == 0} {set ret 1}
+	    } else {
+		set result [namespace inscope $ns $cmd {*}$arglist]
+		set ret 2
+	    }
+	}
+    }
+    return $ret
+}
+
 # msgcat::mcset --
 #
 #	Set the translation for a given string in a specified locale.
@@ -330,7 +905,7 @@ proc msgcat::mcset {locale src {dest ""}} {
 
     set locale [string tolower $locale]
 
-    dict set Msgs $locale $ns $src $dest
+    dict set Msgs $ns $locale $src $dest
     return $dest
 }
 
@@ -351,16 +926,10 @@ proc msgcat::mcflset {src {dest ""}} {
     variable Msgs
 
     if {![info exists FileLocale]} {
-	return -code error \
-	    "must only be used inside a message catalog loaded with ::msgcat::mcload"
-    }
-    if {[llength [info level 0]] == 2} { ;# dest not specified
-	set dest $src
+	return -code error "must only be used inside a message catalog loaded\
+		with ::msgcat::mcload"
     }
-
-    set ns [uplevel 1 [list ::namespace current]]
-    dict set Msgs $FileLocale $ns $src $dest
-    return $dest
+    return [uplevel 1 [list [namespace origin mcset] $FileLocale $src $dest]]
 }
 
 # msgcat::mcmset --
@@ -380,14 +949,14 @@ proc msgcat::mcmset {locale pairs} {
     set length [llength $pairs]
     if {$length % 2} {
 	return -code error "bad translation list:\
-		 should be \"[lindex [info level 0] 0] locale {src dest ...}\""
+		should be \"[lindex [info level 0] 0] locale {src dest ...}\""
     }
 
     set locale [string tolower $locale]
     set ns [uplevel 1 [list ::namespace current]]
 
     foreach {src dest} $pairs {
-	dict set Msgs $locale $ns $src $dest
+	dict set Msgs $ns $locale $src $dest
     }
 
     return [expr {$length / 2}]
@@ -408,26 +977,17 @@ proc msgcat::mcflmset {pairs} {
     variable Msgs
 
     if {![info exists FileLocale]} {
-	return -code error \
-	    "must only be used inside a message catalog loaded with ::msgcat::mcload"
-    }
-    set length [llength $pairs]
-    if {$length % 2} {
-	return -code error "bad translation list:\
-		should be \"[lindex [info level 0] 0] locale {src dest ...}\""
+	return -code error "must only be used inside a message catalog loaded\
+		with ::msgcat::mcload"
     }
-
-    set ns [uplevel 1 [list ::namespace current]]
-    foreach {src dest} $pairs {
-	dict set Msgs $FileLocale $ns $src $dest
-    }
-    return [expr {$length / 2}]
+    return [uplevel 1 [list [namespace origin mcmset] $FileLocale $pairs]]
 }
 
 # msgcat::mcunknown --
 #
 #	This routine is called by msgcat::mc if a translation cannot
-#	be found for a string.  This routine is intended to be replaced
+#	be found for a string and no unknowncmd is set for the current
+#	package. This routine is intended to be replaced
 #	by an application specific routine for error reporting
 #	purposes.  The default behavior is to return the source string.
 #	If additional args are specified, the format command will be used
@@ -441,7 +1001,30 @@ proc msgcat::mcflmset {pairs} {
 # Results:
 #	Returns the translated value.
 
-proc msgcat::mcunknown {locale src args} {
+proc msgcat::mcunknown {args} {
+    return [uplevel 1 [list [namespace origin DefaultUnknown] {*}$args]]
+}
+
+# msgcat::DefaultUnknown --
+#
+#	This routine is called by msgcat::mc if a translation cannot
+#	be found for a string in the following circumstances:
+#	- Default global handler, if mcunknown is not redefined.
+#	- Per package handler, if the package sets unknowncmd to the empty
+#	  string.
+#	It returna the source string if the argument list is empty.
+#	If additional args are specified, the format command will be used
+#	to work them into the traslated string.
+#
+# Arguments:
+#	locale		(unused) The current locale.
+#	src		The string to be translated.
+#	args		Args to pass to the format command
+#
+# Results:
+#	Returns the translated value.
+
+proc msgcat::DefaultUnknown {locale src args} {
     if {[llength $args]} {
 	return [format $src {*}$args]
     } else {
diff --git a/library/msgcat/pkgIndex.tcl b/library/msgcat/pkgIndex.tcl
index 5fabfe3..7399c92 100644..100755
--- a/library/msgcat/pkgIndex.tcl
+++ b/library/msgcat/pkgIndex.tcl
@@ -1,2 +1,2 @@
 if {![package vsatisfies [package provide Tcl] 8.5]} {return}
-package ifneeded msgcat 1.5.2 [list source [file join $dir msgcat.tcl]]
+package ifneeded msgcat 1.6.0 [list source [file join $dir msgcat.tcl]]
diff --git a/library/msgs/af.msg b/library/msgs/af.msg
index 0892615..0892615 100644..100755
--- a/library/msgs/af.msg
+++ b/library/msgs/af.msg
diff --git a/library/msgs/af_za.msg b/library/msgs/af_za.msg
index fef48ad..fef48ad 100644..100755
--- a/library/msgs/af_za.msg
+++ b/library/msgs/af_za.msg
diff --git a/library/msgs/ar.msg b/library/msgs/ar.msg
index 257157f..257157f 100644..100755
--- a/library/msgs/ar.msg
+++ b/library/msgs/ar.msg
diff --git a/library/msgs/ar_in.msg b/library/msgs/ar_in.msg
index 185e49c..185e49c 100644..100755
--- a/library/msgs/ar_in.msg
+++ b/library/msgs/ar_in.msg
diff --git a/library/msgs/ar_jo.msg b/library/msgs/ar_jo.msg
index 0f5e269..0f5e269 100644..100755
--- a/library/msgs/ar_jo.msg
+++ b/library/msgs/ar_jo.msg
diff --git a/library/msgs/ar_lb.msg b/library/msgs/ar_lb.msg
index e62acd3..e62acd3 100644..100755
--- a/library/msgs/ar_lb.msg
+++ b/library/msgs/ar_lb.msg
diff --git a/library/msgs/ar_sy.msg b/library/msgs/ar_sy.msg
index d5e1c87..d5e1c87 100644..100755
--- a/library/msgs/ar_sy.msg
+++ b/library/msgs/ar_sy.msg
diff --git a/library/msgs/be.msg b/library/msgs/be.msg
index 379a1d7..379a1d7 100644..100755
--- a/library/msgs/be.msg
+++ b/library/msgs/be.msg
diff --git a/library/msgs/bg.msg b/library/msgs/bg.msg
index ff17759..ff17759 100644..100755
--- a/library/msgs/bg.msg
+++ b/library/msgs/bg.msg
diff --git a/library/msgs/bn.msg b/library/msgs/bn.msg
index 664b9d8..664b9d8 100644..100755
--- a/library/msgs/bn.msg
+++ b/library/msgs/bn.msg
diff --git a/library/msgs/bn_in.msg b/library/msgs/bn_in.msg
index 28c000f..28c000f 100644..100755
--- a/library/msgs/bn_in.msg
+++ b/library/msgs/bn_in.msg
diff --git a/library/msgs/ca.msg b/library/msgs/ca.msg
index 36c9772..36c9772 100644..100755
--- a/library/msgs/ca.msg
+++ b/library/msgs/ca.msg
diff --git a/library/msgs/cs.msg b/library/msgs/cs.msg
index 8db8bdd..8db8bdd 100644..100755
--- a/library/msgs/cs.msg
+++ b/library/msgs/cs.msg
diff --git a/library/msgs/da.msg b/library/msgs/da.msg
index e4fec7f..e4fec7f 100644..100755
--- a/library/msgs/da.msg
+++ b/library/msgs/da.msg
diff --git a/library/msgs/de.msg b/library/msgs/de.msg
index 9eb3145..9eb3145 100644..100755
--- a/library/msgs/de.msg
+++ b/library/msgs/de.msg
diff --git a/library/msgs/de_at.msg b/library/msgs/de_at.msg
index 61bc266..61bc266 100644..100755
--- a/library/msgs/de_at.msg
+++ b/library/msgs/de_at.msg
diff --git a/library/msgs/de_be.msg b/library/msgs/de_be.msg
index 3614763..3614763 100644..100755
--- a/library/msgs/de_be.msg
+++ b/library/msgs/de_be.msg
diff --git a/library/msgs/el.msg b/library/msgs/el.msg
index ac19f62..ac19f62 100644..100755
--- a/library/msgs/el.msg
+++ b/library/msgs/el.msg
diff --git a/library/msgs/en_au.msg b/library/msgs/en_au.msg
index 7f9870c..7f9870c 100644..100755
--- a/library/msgs/en_au.msg
+++ b/library/msgs/en_au.msg
diff --git a/library/msgs/en_be.msg b/library/msgs/en_be.msg
index 5072986..5072986 100644..100755
--- a/library/msgs/en_be.msg
+++ b/library/msgs/en_be.msg
diff --git a/library/msgs/en_bw.msg b/library/msgs/en_bw.msg
index 8fd20c7..8fd20c7 100644..100755
--- a/library/msgs/en_bw.msg
+++ b/library/msgs/en_bw.msg
diff --git a/library/msgs/en_ca.msg b/library/msgs/en_ca.msg
index 278efe7..278efe7 100644..100755
--- a/library/msgs/en_ca.msg
+++ b/library/msgs/en_ca.msg
diff --git a/library/msgs/en_gb.msg b/library/msgs/en_gb.msg
index 5c61c43..5c61c43 100644..100755
--- a/library/msgs/en_gb.msg
+++ b/library/msgs/en_gb.msg
diff --git a/library/msgs/en_hk.msg b/library/msgs/en_hk.msg
index 8b33bc0..8b33bc0 100644..100755
--- a/library/msgs/en_hk.msg
+++ b/library/msgs/en_hk.msg
diff --git a/library/msgs/en_ie.msg b/library/msgs/en_ie.msg
index ba621cf..ba621cf 100644..100755
--- a/library/msgs/en_ie.msg
+++ b/library/msgs/en_ie.msg
diff --git a/library/msgs/en_in.msg b/library/msgs/en_in.msg
index a1f155d..a1f155d 100644..100755
--- a/library/msgs/en_in.msg
+++ b/library/msgs/en_in.msg
diff --git a/library/msgs/en_nz.msg b/library/msgs/en_nz.msg
index b419017..b419017 100644..100755
--- a/library/msgs/en_nz.msg
+++ b/library/msgs/en_nz.msg
diff --git a/library/msgs/en_ph.msg b/library/msgs/en_ph.msg
index 682666d..682666d 100644..100755
--- a/library/msgs/en_ph.msg
+++ b/library/msgs/en_ph.msg
diff --git a/library/msgs/en_sg.msg b/library/msgs/en_sg.msg
index 4dc5b1d..4dc5b1d 100644..100755
--- a/library/msgs/en_sg.msg
+++ b/library/msgs/en_sg.msg
diff --git a/library/msgs/en_za.msg b/library/msgs/en_za.msg
index fe43797..fe43797 100644..100755
--- a/library/msgs/en_za.msg
+++ b/library/msgs/en_za.msg
diff --git a/library/msgs/en_zw.msg b/library/msgs/en_zw.msg
index 2a5804f..2a5804f 100644..100755
--- a/library/msgs/en_zw.msg
+++ b/library/msgs/en_zw.msg
diff --git a/library/msgs/eo.msg b/library/msgs/eo.msg
index 1d2a24f..1d2a24f 100644..100755
--- a/library/msgs/eo.msg
+++ b/library/msgs/eo.msg
diff --git a/library/msgs/es.msg b/library/msgs/es.msg
index a24f0a1..a24f0a1 100644..100755
--- a/library/msgs/es.msg
+++ b/library/msgs/es.msg
diff --git a/library/msgs/es_ar.msg b/library/msgs/es_ar.msg
index 7d35027..7d35027 100644..100755
--- a/library/msgs/es_ar.msg
+++ b/library/msgs/es_ar.msg
diff --git a/library/msgs/es_bo.msg b/library/msgs/es_bo.msg
index 498ad0d..498ad0d 100644..100755
--- a/library/msgs/es_bo.msg
+++ b/library/msgs/es_bo.msg
diff --git a/library/msgs/es_cl.msg b/library/msgs/es_cl.msg
index 31d465c..31d465c 100644..100755
--- a/library/msgs/es_cl.msg
+++ b/library/msgs/es_cl.msg
diff --git a/library/msgs/es_co.msg b/library/msgs/es_co.msg
index 77e57f0..77e57f0 100644..100755
--- a/library/msgs/es_co.msg
+++ b/library/msgs/es_co.msg
diff --git a/library/msgs/es_cr.msg b/library/msgs/es_cr.msg
index 7a652fa..7a652fa 100644..100755
--- a/library/msgs/es_cr.msg
+++ b/library/msgs/es_cr.msg
diff --git a/library/msgs/es_do.msg b/library/msgs/es_do.msg
index 0e283da..0e283da 100644..100755
--- a/library/msgs/es_do.msg
+++ b/library/msgs/es_do.msg
diff --git a/library/msgs/es_ec.msg b/library/msgs/es_ec.msg
index 9e921e0..9e921e0 100644..100755
--- a/library/msgs/es_ec.msg
+++ b/library/msgs/es_ec.msg
diff --git a/library/msgs/es_gt.msg b/library/msgs/es_gt.msg
index ecd6faf..ecd6faf 100644..100755
--- a/library/msgs/es_gt.msg
+++ b/library/msgs/es_gt.msg
diff --git a/library/msgs/es_hn.msg b/library/msgs/es_hn.msg
index a758ca2..a758ca2 100644..100755
--- a/library/msgs/es_hn.msg
+++ b/library/msgs/es_hn.msg
diff --git a/library/msgs/es_mx.msg b/library/msgs/es_mx.msg
index 7cfb545..7cfb545 100644..100755
--- a/library/msgs/es_mx.msg
+++ b/library/msgs/es_mx.msg
diff --git a/library/msgs/es_ni.msg b/library/msgs/es_ni.msg
index 7c39495..7c39495 100644..100755
--- a/library/msgs/es_ni.msg
+++ b/library/msgs/es_ni.msg
diff --git a/library/msgs/es_pa.msg b/library/msgs/es_pa.msg
index cecacdc..cecacdc 100644..100755
--- a/library/msgs/es_pa.msg
+++ b/library/msgs/es_pa.msg
diff --git a/library/msgs/es_pe.msg b/library/msgs/es_pe.msg
index 9f90595..9f90595 100644..100755
--- a/library/msgs/es_pe.msg
+++ b/library/msgs/es_pe.msg
diff --git a/library/msgs/es_pr.msg b/library/msgs/es_pr.msg
index 8511b12..8511b12 100644..100755
--- a/library/msgs/es_pr.msg
+++ b/library/msgs/es_pr.msg
diff --git a/library/msgs/es_py.msg b/library/msgs/es_py.msg
index aa93d36..aa93d36 100644..100755
--- a/library/msgs/es_py.msg
+++ b/library/msgs/es_py.msg
diff --git a/library/msgs/es_sv.msg b/library/msgs/es_sv.msg
index fc7954d..fc7954d 100644..100755
--- a/library/msgs/es_sv.msg
+++ b/library/msgs/es_sv.msg
diff --git a/library/msgs/es_uy.msg b/library/msgs/es_uy.msg
index b33525c..b33525c 100644..100755
--- a/library/msgs/es_uy.msg
+++ b/library/msgs/es_uy.msg
diff --git a/library/msgs/es_ve.msg b/library/msgs/es_ve.msg
index 7c2a7b0..7c2a7b0 100644..100755
--- a/library/msgs/es_ve.msg
+++ b/library/msgs/es_ve.msg
diff --git a/library/msgs/et.msg b/library/msgs/et.msg
index 8d32e9e..8d32e9e 100644..100755
--- a/library/msgs/et.msg
+++ b/library/msgs/et.msg
diff --git a/library/msgs/eu.msg b/library/msgs/eu.msg
index cf708b6..cf708b6 100644..100755
--- a/library/msgs/eu.msg
+++ b/library/msgs/eu.msg
diff --git a/library/msgs/eu_es.msg b/library/msgs/eu_es.msg
index 2694418..2694418 100644..100755
--- a/library/msgs/eu_es.msg
+++ b/library/msgs/eu_es.msg
diff --git a/library/msgs/fa.msg b/library/msgs/fa.msg
index 89b2f90..89b2f90 100644..100755
--- a/library/msgs/fa.msg
+++ b/library/msgs/fa.msg
diff --git a/library/msgs/fa_in.msg b/library/msgs/fa_in.msg
index adc9e91..adc9e91 100644..100755
--- a/library/msgs/fa_in.msg
+++ b/library/msgs/fa_in.msg
diff --git a/library/msgs/fa_ir.msg b/library/msgs/fa_ir.msg
index 597ce9d..597ce9d 100644..100755
--- a/library/msgs/fa_ir.msg
+++ b/library/msgs/fa_ir.msg
diff --git a/library/msgs/fi.msg b/library/msgs/fi.msg
index acabba0..acabba0 100644..100755
--- a/library/msgs/fi.msg
+++ b/library/msgs/fi.msg
diff --git a/library/msgs/fo.msg b/library/msgs/fo.msg
index 4696e62..4696e62 100644..100755
--- a/library/msgs/fo.msg
+++ b/library/msgs/fo.msg
diff --git a/library/msgs/fo_fo.msg b/library/msgs/fo_fo.msg
index 2392b8e..2392b8e 100644..100755
--- a/library/msgs/fo_fo.msg
+++ b/library/msgs/fo_fo.msg
diff --git a/library/msgs/fr.msg b/library/msgs/fr.msg
index 55b19bf..55b19bf 100644..100755
--- a/library/msgs/fr.msg
+++ b/library/msgs/fr.msg
diff --git a/library/msgs/fr_be.msg b/library/msgs/fr_be.msg
index cdb13bd..cdb13bd 100644..100755
--- a/library/msgs/fr_be.msg
+++ b/library/msgs/fr_be.msg
diff --git a/library/msgs/fr_ca.msg b/library/msgs/fr_ca.msg
index 00ccfff..00ccfff 100644..100755
--- a/library/msgs/fr_ca.msg
+++ b/library/msgs/fr_ca.msg
diff --git a/library/msgs/fr_ch.msg b/library/msgs/fr_ch.msg
index 7e2bac7..7e2bac7 100644..100755
--- a/library/msgs/fr_ch.msg
+++ b/library/msgs/fr_ch.msg
diff --git a/library/msgs/ga.msg b/library/msgs/ga.msg
index 6edf13a..6edf13a 100644..100755
--- a/library/msgs/ga.msg
+++ b/library/msgs/ga.msg
diff --git a/library/msgs/ga_ie.msg b/library/msgs/ga_ie.msg
index b6acbbc..b6acbbc 100644..100755
--- a/library/msgs/ga_ie.msg
+++ b/library/msgs/ga_ie.msg
diff --git a/library/msgs/gl.msg b/library/msgs/gl.msg
index 4b869e8..4b869e8 100644..100755
--- a/library/msgs/gl.msg
+++ b/library/msgs/gl.msg
diff --git a/library/msgs/gl_es.msg b/library/msgs/gl_es.msg
index d4ed270..d4ed270 100644..100755
--- a/library/msgs/gl_es.msg
+++ b/library/msgs/gl_es.msg
diff --git a/library/msgs/gv.msg b/library/msgs/gv.msg
index 7d332ad..7d332ad 100644..100755
--- a/library/msgs/gv.msg
+++ b/library/msgs/gv.msg
diff --git a/library/msgs/gv_gb.msg b/library/msgs/gv_gb.msg
index 5e96e6f..5e96e6f 100644..100755
--- a/library/msgs/gv_gb.msg
+++ b/library/msgs/gv_gb.msg
diff --git a/library/msgs/he.msg b/library/msgs/he.msg
index 4fd921d..4fd921d 100644..100755
--- a/library/msgs/he.msg
+++ b/library/msgs/he.msg
diff --git a/library/msgs/hi.msg b/library/msgs/hi.msg
index 50c9fb8..50c9fb8 100644..100755
--- a/library/msgs/hi.msg
+++ b/library/msgs/hi.msg
diff --git a/library/msgs/hi_in.msg b/library/msgs/hi_in.msg
index 239793f..239793f 100644..100755
--- a/library/msgs/hi_in.msg
+++ b/library/msgs/hi_in.msg
diff --git a/library/msgs/hr.msg b/library/msgs/hr.msg
index cec145b..cec145b 100644..100755
--- a/library/msgs/hr.msg
+++ b/library/msgs/hr.msg
diff --git a/library/msgs/hu.msg b/library/msgs/hu.msg
index e5e68d9..e5e68d9 100644..100755
--- a/library/msgs/hu.msg
+++ b/library/msgs/hu.msg
diff --git a/library/msgs/id.msg b/library/msgs/id.msg
index 17c6bb5..17c6bb5 100644..100755
--- a/library/msgs/id.msg
+++ b/library/msgs/id.msg
diff --git a/library/msgs/id_id.msg b/library/msgs/id_id.msg
index bb672c1..bb672c1 100644..100755
--- a/library/msgs/id_id.msg
+++ b/library/msgs/id_id.msg
diff --git a/library/msgs/is.msg b/library/msgs/is.msg
index adc2d2a..adc2d2a 100644..100755
--- a/library/msgs/is.msg
+++ b/library/msgs/is.msg
diff --git a/library/msgs/it.msg b/library/msgs/it.msg
index b641cde..b641cde 100644..100755
--- a/library/msgs/it.msg
+++ b/library/msgs/it.msg
diff --git a/library/msgs/it_ch.msg b/library/msgs/it_ch.msg
index b36ed36..b36ed36 100644..100755
--- a/library/msgs/it_ch.msg
+++ b/library/msgs/it_ch.msg
diff --git a/library/msgs/ja.msg b/library/msgs/ja.msg
index 2767665..2767665 100644..100755
--- a/library/msgs/ja.msg
+++ b/library/msgs/ja.msg
diff --git a/library/msgs/kl.msg b/library/msgs/kl.msg
index d877bfe..d877bfe 100644..100755
--- a/library/msgs/kl.msg
+++ b/library/msgs/kl.msg
diff --git a/library/msgs/kl_gl.msg b/library/msgs/kl_gl.msg
index 403aa10..403aa10 100644..100755
--- a/library/msgs/kl_gl.msg
+++ b/library/msgs/kl_gl.msg
diff --git a/library/msgs/ko.msg b/library/msgs/ko.msg
index 0cd17a1..0cd17a1 100644..100755
--- a/library/msgs/ko.msg
+++ b/library/msgs/ko.msg
diff --git a/library/msgs/ko_kr.msg b/library/msgs/ko_kr.msg
index ea5bbd7..ea5bbd7 100644..100755
--- a/library/msgs/ko_kr.msg
+++ b/library/msgs/ko_kr.msg
diff --git a/library/msgs/kok.msg b/library/msgs/kok.msg
index 0869f20..0869f20 100644..100755
--- a/library/msgs/kok.msg
+++ b/library/msgs/kok.msg
diff --git a/library/msgs/kok_in.msg b/library/msgs/kok_in.msg
index abcb1ff..abcb1ff 100644..100755
--- a/library/msgs/kok_in.msg
+++ b/library/msgs/kok_in.msg
diff --git a/library/msgs/kw.msg b/library/msgs/kw.msg
index aaf79b3..aaf79b3 100644..100755
--- a/library/msgs/kw.msg
+++ b/library/msgs/kw.msg
diff --git a/library/msgs/kw_gb.msg b/library/msgs/kw_gb.msg
index 2967680..2967680 100644..100755
--- a/library/msgs/kw_gb.msg
+++ b/library/msgs/kw_gb.msg
diff --git a/library/msgs/lt.msg b/library/msgs/lt.msg
index 27b0985..27b0985 100644..100755
--- a/library/msgs/lt.msg
+++ b/library/msgs/lt.msg
diff --git a/library/msgs/lv.msg b/library/msgs/lv.msg
index a037b15..a037b15 100644..100755
--- a/library/msgs/lv.msg
+++ b/library/msgs/lv.msg
diff --git a/library/msgs/mk.msg b/library/msgs/mk.msg
index 41cf60d..41cf60d 100644..100755
--- a/library/msgs/mk.msg
+++ b/library/msgs/mk.msg
diff --git a/library/msgs/mr.msg b/library/msgs/mr.msg
index cea427a..cea427a 100644..100755
--- a/library/msgs/mr.msg
+++ b/library/msgs/mr.msg
diff --git a/library/msgs/mr_in.msg b/library/msgs/mr_in.msg
index 1889da5..1889da5 100644..100755
--- a/library/msgs/mr_in.msg
+++ b/library/msgs/mr_in.msg
diff --git a/library/msgs/ms.msg b/library/msgs/ms.msg
index e954431..e954431 100644..100755
--- a/library/msgs/ms.msg
+++ b/library/msgs/ms.msg
diff --git a/library/msgs/ms_my.msg b/library/msgs/ms_my.msg
index c1f93d4..c1f93d4 100644..100755
--- a/library/msgs/ms_my.msg
+++ b/library/msgs/ms_my.msg
diff --git a/library/msgs/mt.msg b/library/msgs/mt.msg
index ddd5446..ddd5446 100644..100755
--- a/library/msgs/mt.msg
+++ b/library/msgs/mt.msg
diff --git a/library/msgs/nb.msg b/library/msgs/nb.msg
index 90d49a3..90d49a3 100644..100755
--- a/library/msgs/nb.msg
+++ b/library/msgs/nb.msg
diff --git a/library/msgs/nl.msg b/library/msgs/nl.msg
index 4c5c675..4c5c675 100644..100755
--- a/library/msgs/nl.msg
+++ b/library/msgs/nl.msg
diff --git a/library/msgs/nl_be.msg b/library/msgs/nl_be.msg
index 4b19670..4b19670 100644..100755
--- a/library/msgs/nl_be.msg
+++ b/library/msgs/nl_be.msg
diff --git a/library/msgs/nn.msg b/library/msgs/nn.msg
index bd61ac9..bd61ac9 100644..100755
--- a/library/msgs/nn.msg
+++ b/library/msgs/nn.msg
diff --git a/library/msgs/pl.msg b/library/msgs/pl.msg
index d206f4b..d206f4b 100644..100755
--- a/library/msgs/pl.msg
+++ b/library/msgs/pl.msg
diff --git a/library/msgs/pt.msg b/library/msgs/pt.msg
index 96fdb35..96fdb35 100644..100755
--- a/library/msgs/pt.msg
+++ b/library/msgs/pt.msg
diff --git a/library/msgs/pt_br.msg b/library/msgs/pt_br.msg
index 8684327..8684327 100644..100755
--- a/library/msgs/pt_br.msg
+++ b/library/msgs/pt_br.msg
diff --git a/library/msgs/ro.msg b/library/msgs/ro.msg
index bdd7c61..bdd7c61 100644..100755
--- a/library/msgs/ro.msg
+++ b/library/msgs/ro.msg
diff --git a/library/msgs/ru.msg b/library/msgs/ru.msg
index 65b075d..65b075d 100644..100755
--- a/library/msgs/ru.msg
+++ b/library/msgs/ru.msg
diff --git a/library/msgs/ru_ua.msg b/library/msgs/ru_ua.msg
index 6e1f8a8..6e1f8a8 100644..100755
--- a/library/msgs/ru_ua.msg
+++ b/library/msgs/ru_ua.msg
diff --git a/library/msgs/sh.msg b/library/msgs/sh.msg
index 6ee0fc7..6ee0fc7 100644..100755
--- a/library/msgs/sh.msg
+++ b/library/msgs/sh.msg
diff --git a/library/msgs/sk.msg b/library/msgs/sk.msg
index 9b2f0aa..9b2f0aa 100644..100755
--- a/library/msgs/sk.msg
+++ b/library/msgs/sk.msg
diff --git a/library/msgs/sl.msg b/library/msgs/sl.msg
index 42bc509..42bc509 100644..100755
--- a/library/msgs/sl.msg
+++ b/library/msgs/sl.msg
diff --git a/library/msgs/sq.msg b/library/msgs/sq.msg
index 8fb1fce..8fb1fce 100644..100755
--- a/library/msgs/sq.msg
+++ b/library/msgs/sq.msg
diff --git a/library/msgs/sr.msg b/library/msgs/sr.msg
index 7576668..7576668 100644..100755
--- a/library/msgs/sr.msg
+++ b/library/msgs/sr.msg
diff --git a/library/msgs/sv.msg b/library/msgs/sv.msg
index f7a67c6..f7a67c6 100644..100755
--- a/library/msgs/sv.msg
+++ b/library/msgs/sv.msg
diff --git a/library/msgs/sw.msg b/library/msgs/sw.msg
index b888b43..b888b43 100644..100755
--- a/library/msgs/sw.msg
+++ b/library/msgs/sw.msg
diff --git a/library/msgs/ta.msg b/library/msgs/ta.msg
index 4abb90c..4abb90c 100644..100755
--- a/library/msgs/ta.msg
+++ b/library/msgs/ta.msg
diff --git a/library/msgs/ta_in.msg b/library/msgs/ta_in.msg
index 24590ac..24590ac 100644..100755
--- a/library/msgs/ta_in.msg
+++ b/library/msgs/ta_in.msg
diff --git a/library/msgs/te.msg b/library/msgs/te.msg
index 6111473..6111473 100644..100755
--- a/library/msgs/te.msg
+++ b/library/msgs/te.msg
diff --git a/library/msgs/te_in.msg b/library/msgs/te_in.msg
index 61638b5..61638b5 100644..100755
--- a/library/msgs/te_in.msg
+++ b/library/msgs/te_in.msg
diff --git a/library/msgs/th.msg b/library/msgs/th.msg
index 7486c35..7486c35 100644..100755
--- a/library/msgs/th.msg
+++ b/library/msgs/th.msg
diff --git a/library/msgs/tr.msg b/library/msgs/tr.msg
index 7b2ecf9..7b2ecf9 100644..100755
--- a/library/msgs/tr.msg
+++ b/library/msgs/tr.msg
diff --git a/library/msgs/uk.msg b/library/msgs/uk.msg
index 7d4c64a..7d4c64a 100644..100755
--- a/library/msgs/uk.msg
+++ b/library/msgs/uk.msg
diff --git a/library/msgs/vi.msg b/library/msgs/vi.msg
index c98b2a6..c98b2a6 100644..100755
--- a/library/msgs/vi.msg
+++ b/library/msgs/vi.msg
diff --git a/library/msgs/zh.msg b/library/msgs/zh.msg
index b799a32..b799a32 100644..100755
--- a/library/msgs/zh.msg
+++ b/library/msgs/zh.msg
diff --git a/library/msgs/zh_cn.msg b/library/msgs/zh_cn.msg
index d62ce77..d62ce77 100644..100755
--- a/library/msgs/zh_cn.msg
+++ b/library/msgs/zh_cn.msg
diff --git a/library/msgs/zh_hk.msg b/library/msgs/zh_hk.msg
index badb1dd..badb1dd 100644..100755
--- a/library/msgs/zh_hk.msg
+++ b/library/msgs/zh_hk.msg
diff --git a/library/msgs/zh_sg.msg b/library/msgs/zh_sg.msg
index a2f3e39..a2f3e39 100644..100755
--- a/library/msgs/zh_sg.msg
+++ b/library/msgs/zh_sg.msg
diff --git a/library/msgs/zh_tw.msg b/library/msgs/zh_tw.msg
index e0796b1..e0796b1 100644..100755
--- a/library/msgs/zh_tw.msg
+++ b/library/msgs/zh_tw.msg
diff --git a/library/tzdata/Africa/Asmara b/library/tzdata/Africa/Asmara
index 3d33c94..3d33c94 100644..100755
--- a/library/tzdata/Africa/Asmara
+++ b/library/tzdata/Africa/Asmara
diff --git a/library/tzdata/America/Atikokan b/library/tzdata/America/Atikokan
index e72b04f..e72b04f 100644..100755
--- a/library/tzdata/America/Atikokan
+++ b/library/tzdata/America/Atikokan
diff --git a/library/tzdata/America/Blanc-Sablon b/library/tzdata/America/Blanc-Sablon
index d5485e8..d5485e8 100644..100755
--- a/library/tzdata/America/Blanc-Sablon
+++ b/library/tzdata/America/Blanc-Sablon
diff --git a/library/tzdata/America/Indiana/Petersburg b/library/tzdata/America/Indiana/Petersburg
index 6992bfc..6992bfc 100644..100755
--- a/library/tzdata/America/Indiana/Petersburg
+++ b/library/tzdata/America/Indiana/Petersburg
diff --git a/library/tzdata/America/Indiana/Tell_City b/library/tzdata/America/Indiana/Tell_City
index 9eebcf7..9eebcf7 100644..100755
--- a/library/tzdata/America/Indiana/Tell_City
+++ b/library/tzdata/America/Indiana/Tell_City
diff --git a/library/tzdata/America/Indiana/Vincennes b/library/tzdata/America/Indiana/Vincennes
index 1af7fc9..1af7fc9 100644..100755
--- a/library/tzdata/America/Indiana/Vincennes
+++ b/library/tzdata/America/Indiana/Vincennes
diff --git a/library/tzdata/America/Indiana/Winamac b/library/tzdata/America/Indiana/Winamac
index fb6cd37..fb6cd37 100644..100755
--- a/library/tzdata/America/Indiana/Winamac
+++ b/library/tzdata/America/Indiana/Winamac
diff --git a/library/tzdata/America/Moncton b/library/tzdata/America/Moncton
index d286c88..d286c88 100644..100755
--- a/library/tzdata/America/Moncton
+++ b/library/tzdata/America/Moncton
diff --git a/library/tzdata/America/North_Dakota/New_Salem b/library/tzdata/America/North_Dakota/New_Salem
index 5a9d229..5a9d229 100644..100755
--- a/library/tzdata/America/North_Dakota/New_Salem
+++ b/library/tzdata/America/North_Dakota/New_Salem
diff --git a/library/tzdata/America/Resolute b/library/tzdata/America/Resolute
index b4c0bab..b4c0bab 100644..100755
--- a/library/tzdata/America/Resolute
+++ b/library/tzdata/America/Resolute
diff --git a/library/tzdata/Atlantic/Faroe b/library/tzdata/Atlantic/Faroe
index d2c314a..d2c314a 100644..100755
--- a/library/tzdata/Atlantic/Faroe
+++ b/library/tzdata/Atlantic/Faroe
diff --git a/library/tzdata/Australia/Eucla b/library/tzdata/Australia/Eucla
index 08a1948..08a1948 100644..100755
--- a/library/tzdata/Australia/Eucla
+++ b/library/tzdata/Australia/Eucla
diff --git a/library/tzdata/Europe/Guernsey b/library/tzdata/Europe/Guernsey
index 4372c64..4372c64 100644..100755
--- a/library/tzdata/Europe/Guernsey
+++ b/library/tzdata/Europe/Guernsey
diff --git a/library/tzdata/Europe/Isle_of_Man b/library/tzdata/Europe/Isle_of_Man
index 870ac45..870ac45 100644..100755
--- a/library/tzdata/Europe/Isle_of_Man
+++ b/library/tzdata/Europe/Isle_of_Man
diff --git a/library/tzdata/Europe/Jersey b/library/tzdata/Europe/Jersey
index e4da512..e4da512 100644..100755
--- a/library/tzdata/Europe/Jersey
+++ b/library/tzdata/Europe/Jersey
diff --git a/library/tzdata/Europe/Podgorica b/library/tzdata/Europe/Podgorica
index f4f9066..f4f9066 100644..100755
--- a/library/tzdata/Europe/Podgorica
+++ b/library/tzdata/Europe/Podgorica
diff --git a/library/tzdata/Europe/Volgograd b/library/tzdata/Europe/Volgograd
index d71fb0b..d71fb0b 100644..100755
--- a/library/tzdata/Europe/Volgograd
+++ b/library/tzdata/Europe/Volgograd