diff options
Diffstat (limited to 'library/msgcat/msgcat.tcl')
| -rw-r--r-- | library/msgcat/msgcat.tcl | 125 |
1 files changed, 120 insertions, 5 deletions
diff --git a/library/msgcat/msgcat.tcl b/library/msgcat/msgcat.tcl index 928474d..f9f57db 100644 --- a/library/msgcat/msgcat.tcl +++ b/library/msgcat/msgcat.tcl @@ -225,6 +225,65 @@ proc msgcat::mc {src args} { } } +# msgcat::mcget -- +# +# Return the translation for the given string based on the given +# locale setting or the whole dictionary object of the package/locale. +# Searching of catalog is similar to "msgcat::mc". +# +# Contrary to "msgcat::mc" may additionally load a package catalog +# on demand. +# +# Arguments: +# ns The package namespace (as catalog selector). +# loc The locale used for translation. +# {src} The string to translate. +# {args} Args to pass to the format command +# +# Results: +# Returns the translated string. Propagates errors thrown by the +# format command. + +proc msgcat::mcget {ns loc args} { + if {$loc eq {C}} { + set loclist [PackagePreferences $ns] + set loc [lindex $loclist 0] + } else { + set loc [string tolower $loc] + variable PackageConfig + # get locales list for given locale (de_de -> {de_de de {}}) + if {[catch { + set loclist [dict get $PackageConfig locales $ns $loc] + }]} { + # lazy load catalog on demand + mcpackagelocale load $loc $ns + set loclist [dict get $PackageConfig locales $ns $loc] + } + } + if {![llength $args]} { + # get whole catalog: + return [msgcat::Merge $ns $loclist] + } + set src [lindex $args 0] + # search translation for each locale (regarding parent namespaces) + for {set nscur $ns} {$nscur != ""} {set nscur [namespace parent $nscur]} { + foreach loc $loclist { + set msgs [mcget $nscur $loc] + if {![catch { set val [dict get $msgs $src] }]} { + if {[llength $args] == 1} { + return $val + } + return [format $val {*}[lrange $args 1 end]] + } + } + } + # no translation : + if {[llength $args] == 1} { + return $src + } + return [format $src {*}[lrange $args 1 end]] +} + # msgcat::mcexists -- # # Check if a catalog item is set or if mc would invoke mcunknown. @@ -415,6 +474,10 @@ proc msgcat::mcloadedlocales {subcommand} { # items, if the former locale was the default locale. # Returns the normalized set locale. # The default locale is taken, if locale is not given. +# load +# Load a package locale without set it (lazy loading from mcget). +# Returns the normalized set locale. +# The default locale is taken, if locale is not given. # get # Get the locale valid for this package. # isset @@ -442,7 +505,7 @@ proc msgcat::mcloadedlocales {subcommand} { # Results: # Empty string, if not stated differently for the subcommand -proc msgcat::mcpackagelocale {subcommand {locale ""}} { +proc msgcat::mcpackagelocale {subcommand {locale ""} {ns ""}} { # todo: implement using an ensemble variable Loclist variable LoadedLocales @@ -462,7 +525,9 @@ proc msgcat::mcpackagelocale {subcommand {locale ""}} { } set locale [string tolower $locale] } - set ns [uplevel 1 {::namespace current}] + if {$ns eq ""} { + set ns [uplevel 1 {::namespace current}] + } switch -exact -- $subcommand { get { return [lindex [PackagePreferences $ns] 0] } @@ -470,7 +535,7 @@ proc msgcat::mcpackagelocale {subcommand {locale ""}} { loaded { return [PackageLocales $ns] } present { return [expr {$locale in [PackageLocales $ns]} ]} isset { return [dict exists $PackageConfig loclist $ns] } - set { # set a package locale or add a package locale + set - load { # 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]} { @@ -480,17 +545,21 @@ proc msgcat::mcpackagelocale {subcommand {locale ""}} { # Check if changed set loclist [dict get $PackageConfig loclist $ns] - if {! [info exists locale] || $locale eq [lindex $loclist 0] } { + if {[llength [info level 0]] == 2 || $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 $loclist + if {$subcommand eq {set}} { + # set loclist + dict set PackageConfig loclist $ns $loclist + } # load eventual missing locales set loadedLocales [dict get $PackageConfig loadedlocales $ns] + dict set PackageConfig locales $ns $locale $loclist if {$locale in $loadedLocales} { return $locale } set loadLocales [ListComplement $loadedLocales $loclist] dict set PackageConfig loadedlocales $ns\ @@ -521,6 +590,7 @@ proc msgcat::mcpackagelocale {subcommand {locale ""}} { [dict get $PackageConfig loadedlocales $ns] $LoadedLocales] dict unset PackageConfig loadedlocales $ns dict unset PackageConfig loclist $ns + dict unset PackageConfig locales $ns # unset keys not in global loaded locales if {[dict exists $Msgs $ns]} { @@ -847,6 +917,47 @@ proc msgcat::Load {ns locales {callbackonly 0}} { return $x } +# msgcat::Merge -- +# +# Merge message catalog dictionaries to one dictionary. +# +# Arguments: +# ns Namespace (equal package) to load the message catalog. +# locales List of locales to merge. +# +# Results: +# Returns the merged dictionary of message catalogs. +proc msgcat::Merge {ns locales} { + variable Merged + if {![catch { + set mrgcat [dict get $Merged $ns [set loc [lindex $locales 0]]] + }]} { + return $mrgcat + } + variable Msgs + # Merge sequential locales (in reverse order, e. g. {} -> en -> en_en): + if {[llength $locales] > 1} { + set mrgcat [msgcat::Merge $ns [lrange $locales 1 end]] + catch { + set mrgcat [dict merge $mrgcat [dict get $Msgs $ns $loc]] + } + } else { + if {[catch { + set mrgcat [dict get $Msgs $ns $loc] + }]} { + set mrgcat [dict create] + } + } + dict set Merged $ns $loc $mrgcat + # return smart reference (shared dict as object with exact one ref-counter) + return [dict smartref $mrgcat] +} + +proc msgcat::ClearCaches {ns} { + variable Merged + dict unset Merged $ns +} + # msgcat::Invoke -- # # Invoke a set of registered callbacks. @@ -919,6 +1030,7 @@ proc msgcat::Invoke {index arglist {ns ""} {resultname ""} {failerror 0}} { proc msgcat::mcset {locale src {dest ""}} { variable Msgs + variable Merged if {[llength [info level 0]] == 3} { ;# dest not specified set dest $src } @@ -928,6 +1040,7 @@ proc msgcat::mcset {locale src {dest ""}} { set locale [string tolower $locale] dict set Msgs $ns $locale $src $dest + dict unset Merged $ns return $dest } @@ -967,6 +1080,7 @@ proc msgcat::mcflset {src {dest ""}} { proc msgcat::mcmset {locale pairs} { variable Msgs + variable Merged set length [llength $pairs] if {$length % 2} { @@ -980,6 +1094,7 @@ proc msgcat::mcmset {locale pairs} { foreach {src dest} $pairs { dict set Msgs $ns $locale $src $dest } + dict unset Merged $ns return [expr {$length / 2}] } |