diff options
Diffstat (limited to 'library/msgcat/msgcat.tcl')
| -rw-r--r-- | library/msgcat/msgcat.tcl | 1132 |
1 files changed, 922 insertions, 210 deletions
diff --git a/library/msgcat/msgcat.tcl b/library/msgcat/msgcat.tcl index a4cf23e..928474d 100644 --- a/library/msgcat/msgcat.tcl +++ b/library/msgcat/msgcat.tcl @@ -4,162 +4,174 @@ # message catalog facility for Tcl programs. It should be # loaded with the command "package require msgcat". # +# Copyright (c) 2010-2015 by Harald Oehlmann. # Copyright (c) 1998-2000 by Ajuba Solutions. # Copyright (c) 1998 by Mark Harrison. # # See the file "license.terms" for information on usage and redistribution # of this file, and for a DISCLAIMER OF ALL WARRANTIES. -# -# RCS: @(#) $Id: msgcat.tcl,v 1.22 2004/08/13 21:39:24 dgp Exp $ -package require Tcl 8.5 +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 1.4.1 +package provide msgcat 1.6.0 namespace eval msgcat { - namespace export mc mcload mclocale mcmax mcmset mcpreferences mcset \ - mcunknown - - # 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] # Map of language codes used in Windows registry to those of ISO-639 - variable WinRegToISO639 [dict create {expand}{ - 01 ar 0401 ar_SA 0801 ar_IQ 0c01 ar_EG 1001 ar_LY 1401 ar_DZ - 1801 ar_MA 1c01 ar_TN 2001 ar_OM 2401 ar_YE 2801 ar_SY - 2c01 ar_JO 3001 ar_LB 3401 ar_KW 3801 ar_AE 3c01 ar_BH - 4001 ar_QA - 02 bg 0402 bg_BG - 03 ca 0403 ca_ES - 04 zh 0404 zh_TW 0804 zh_CN 0c04 zh_HK 1004 zh_SG 1404 zh_MO - 05 cs 0405 cs_CZ - 06 da 0406 da_DK - 07 de 0407 de_DE 0807 de_CH 0c07 de_AT 1007 de_LU 1407 de_LI - 08 el 0408 el_GR - 09 en 0409 en_US 0809 en_GB 0c09 en_AU 1009 en_CA 1409 en_NZ - 1809 en_IE 1c09 en_ZA 2009 en_JM 2409 en_GD 2809 en_BZ - 2c09 en_TT 3009 en_ZW 3409 en_PH - 0a es 040a es_ES 080a es_MX 0c0a es_ES@modern 100a es_GT 140a es_CR - 180a es_PA 1c0a es_DO 200a es_VE 240a es_CO 280a es_PE - 2c0a es_AR 300a es_EC 340a es_CL 380a es_UY 3c0a es_PY - 400a es_BO 440a es_SV 480a es_HN 4c0a es_NI 500a es_PR - 0b fi 040b fi_FI - 0c fr 040c fr_FR 080c fr_BE 0c0c fr_CA 100c fr_CH 140c fr_LU - 180c fr_MC - 0d he 040d he_IL - 0e hu 040e hu_HU - 0f is 040f is_IS - 10 it 0410 it_IT 0810 it_CH - 11 ja 0411 ja_JP - 12 ko 0412 ko_KR - 13 nl 0413 nl_NL 0813 nl_BE - 14 no 0414 no_NO 0814 nn_NO - 15 pl 0415 pl_PL - 16 pt 0416 pt_BR 0816 pt_PT - 17 rm 0417 rm_CH - 18 ro 0418 ro_RO - 19 ru - 1a hr 041a hr_HR 081a sr_YU 0c1a sr_YU@cyrillic - 1b sk 041b sk_SK - 1c sq 041c sq_AL - 1d sv 041d sv_SE 081d sv_FI - 1e th 041e th_TH - 1f tr 041f tr_TR - 20 ur 0420 ur_PK 0820 ur_IN - 21 id 0421 id_ID - 22 uk 0422 uk_UA - 23 be 0423 be_BY - 24 sl 0424 sl_SI - 25 et 0425 et_EE - 26 lv 0426 lv_LV - 27 lt 0427 lt_LT - 28 tg 0428 tg_TJ - 29 fa 0429 fa_IR - 2a vi 042a vi_VN - 2b hy 042b hy_AM - 2c az 042c az_AZ@latin 082c az_AZ@cyrillic - 2d eu - 2e wen 042e wen_DE - 2f mk 042f mk_MK - 30 bnt 0430 bnt_TZ - 31 ts 0431 ts_ZA - 33 ven 0433 ven_ZA - 34 xh 0434 xh_ZA - 35 zu 0435 zu_ZA - 36 af 0436 af_ZA - 37 ka 0437 ka_GE - 38 fo 0438 fo_FO - 39 hi 0439 hi_IN - 3a mt 043a mt_MT - 3b se 043b se_NO - 043c gd_UK 083c ga_IE - 3d yi 043d yi_IL - 3e ms 043e ms_MY 083e ms_BN - 3f kk 043f kk_KZ - 40 ky 0440 ky_KG - 41 sw 0441 sw_KE - 42 tk 0442 tk_TM - 43 uz 0443 uz_UZ@latin 0843 uz_UZ@cyrillic - 44 tt 0444 tt_RU - 45 bn 0445 bn_IN - 46 pa 0446 pa_IN - 47 gu 0447 gu_IN - 48 or 0448 or_IN - 49 ta - 4a te 044a te_IN - 4b kn 044b kn_IN - 4c ml 044c ml_IN - 4d as 044d as_IN - 4e mr 044e mr_IN - 4f sa 044f sa_IN - 50 mn - 51 bo 0451 bo_CN - 52 cy 0452 cy_GB - 53 km 0453 km_KH - 54 lo 0454 lo_LA - 55 my 0455 my_MM - 56 gl 0456 gl_ES - 57 kok 0457 kok_IN - 58 mni 0458 mni_IN - 59 sd - 5a syr 045a syr_TR - 5b si 045b si_LK - 5c chr 045c chr_US - 5d iu 045d iu_CA - 5e am 045e am_ET - 5f ber 045f ber_MA - 60 ks 0460 ks_PK 0860 ks_IN - 61 ne 0461 ne_NP 0861 ne_IN - 62 fy 0462 fy_NL - 63 ps - 64 tl 0464 tl_PH - 65 div 0465 div_MV - 66 bin 0466 bin_NG - 67 ful 0467 ful_NG - 68 ha 0468 ha_NG - 69 nic 0469 nic_NG - 6a yo 046a yo_NG - 70 ibo 0470 ibo_NG - 71 kau 0471 kau_NG - 72 om 0472 om_ET - 73 ti 0473 ti_ET - 74 gn 0474 gn_PY - 75 cpe 0475 cpe_US - 76 la 0476 la_VA - 77 so 0477 so_SO - 78 sit 0478 sit_CN - 79 pap 0479 pap_AN - }] + if {[info sharedlibextension] eq ".dll"} { + variable WinRegToISO639 [dict create {*}{ + 01 ar 0401 ar_SA 0801 ar_IQ 0c01 ar_EG 1001 ar_LY 1401 ar_DZ + 1801 ar_MA 1c01 ar_TN 2001 ar_OM 2401 ar_YE 2801 ar_SY + 2c01 ar_JO 3001 ar_LB 3401 ar_KW 3801 ar_AE 3c01 ar_BH + 4001 ar_QA + 02 bg 0402 bg_BG + 03 ca 0403 ca_ES + 04 zh 0404 zh_TW 0804 zh_CN 0c04 zh_HK 1004 zh_SG 1404 zh_MO + 05 cs 0405 cs_CZ + 06 da 0406 da_DK + 07 de 0407 de_DE 0807 de_CH 0c07 de_AT 1007 de_LU 1407 de_LI + 08 el 0408 el_GR + 09 en 0409 en_US 0809 en_GB 0c09 en_AU 1009 en_CA 1409 en_NZ + 1809 en_IE 1c09 en_ZA 2009 en_JM 2409 en_GD 2809 en_BZ + 2c09 en_TT 3009 en_ZW 3409 en_PH + 0a es 040a es_ES 080a es_MX 0c0a es_ES@modern 100a es_GT 140a es_CR + 180a es_PA 1c0a es_DO 200a es_VE 240a es_CO 280a es_PE + 2c0a es_AR 300a es_EC 340a es_CL 380a es_UY 3c0a es_PY + 400a es_BO 440a es_SV 480a es_HN 4c0a es_NI 500a es_PR + 0b fi 040b fi_FI + 0c fr 040c fr_FR 080c fr_BE 0c0c fr_CA 100c fr_CH 140c fr_LU + 180c fr_MC + 0d he 040d he_IL + 0e hu 040e hu_HU + 0f is 040f is_IS + 10 it 0410 it_IT 0810 it_CH + 11 ja 0411 ja_JP + 12 ko 0412 ko_KR + 13 nl 0413 nl_NL 0813 nl_BE + 14 no 0414 no_NO 0814 nn_NO + 15 pl 0415 pl_PL + 16 pt 0416 pt_BR 0816 pt_PT + 17 rm 0417 rm_CH + 18 ro 0418 ro_RO 0818 ro_MO + 19 ru 0819 ru_MO + 1a hr 041a hr_HR 081a sr_YU 0c1a sr_YU@cyrillic + 1b sk 041b sk_SK + 1c sq 041c sq_AL + 1d sv 041d sv_SE 081d sv_FI + 1e th 041e th_TH + 1f tr 041f tr_TR + 20 ur 0420 ur_PK 0820 ur_IN + 21 id 0421 id_ID + 22 uk 0422 uk_UA + 23 be 0423 be_BY + 24 sl 0424 sl_SI + 25 et 0425 et_EE + 26 lv 0426 lv_LV + 27 lt 0427 lt_LT + 28 tg 0428 tg_TJ + 29 fa 0429 fa_IR + 2a vi 042a vi_VN + 2b hy 042b hy_AM + 2c az 042c az_AZ@latin 082c az_AZ@cyrillic + 2d eu + 2e wen 042e wen_DE + 2f mk 042f mk_MK + 30 bnt 0430 bnt_TZ + 31 ts 0431 ts_ZA + 32 tn + 33 ven 0433 ven_ZA + 34 xh 0434 xh_ZA + 35 zu 0435 zu_ZA + 36 af 0436 af_ZA + 37 ka 0437 ka_GE + 38 fo 0438 fo_FO + 39 hi 0439 hi_IN + 3a mt 043a mt_MT + 3b se 043b se_NO + 043c gd_UK 083c ga_IE + 3d yi 043d yi_IL + 3e ms 043e ms_MY 083e ms_BN + 3f kk 043f kk_KZ + 40 ky 0440 ky_KG + 41 sw 0441 sw_KE + 42 tk 0442 tk_TM + 43 uz 0443 uz_UZ@latin 0843 uz_UZ@cyrillic + 44 tt 0444 tt_RU + 45 bn 0445 bn_IN + 46 pa 0446 pa_IN + 47 gu 0447 gu_IN + 48 or 0448 or_IN + 49 ta + 4a te 044a te_IN + 4b kn 044b kn_IN + 4c ml 044c ml_IN + 4d as 044d as_IN + 4e mr 044e mr_IN + 4f sa 044f sa_IN + 50 mn + 51 bo 0451 bo_CN + 52 cy 0452 cy_GB + 53 km 0453 km_KH + 54 lo 0454 lo_LA + 55 my 0455 my_MM + 56 gl 0456 gl_ES + 57 kok 0457 kok_IN + 58 mni 0458 mni_IN + 59 sd + 5a syr 045a syr_TR + 5b si 045b si_LK + 5c chr 045c chr_US + 5d iu 045d iu_CA + 5e am 045e am_ET + 5f ber 045f ber_MA + 60 ks 0460 ks_PK 0860 ks_IN + 61 ne 0461 ne_NP 0861 ne_IN + 62 fy 0462 fy_NL + 63 ps + 64 tl 0464 tl_PH + 65 div 0465 div_MV + 66 bin 0466 bin_NG + 67 ful 0467 ful_NG + 68 ha 0468 ha_NG + 69 nic 0469 nic_NG + 6a yo 046a yo_NG + 70 ibo 0470 ibo_NG + 71 kau 0471 kau_NG + 72 om 0472 om_ET + 73 ti 0473 ti_ET + 74 gn 0474 gn_PY + 75 cpe 0475 cpe_US + 76 la 0476 la_VA + 77 so 0477 so_SO + 78 sit 0478 sit_CN + 79 pap 0479 pap_AN + }] + } } # msgcat::mc -- @@ -169,41 +181,98 @@ 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. # args Args to pass to the format command # # Results: -# Returns the translated string. Propagates errors thrown by the +# Returns the translated string. Propagates errors thrown by the # 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]] - - 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 [uplevel 1 [list ::format \ - [dict get $Msgs $loc $ns $src] {expand}$args]] - } + set loclist [PackagePreferences $ns] + + 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 1] { + 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 $src {expand}$args]] + return 0 } # msgcat::mclocale -- @@ -216,11 +285,11 @@ 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} { @@ -229,24 +298,49 @@ 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 } - lappend Loclist {} - set Locale [lindex $Loclist 0] } - return $Locale + 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 + } + } + if {"" ne [lindex $loclist end]} { + lappend loclist {} + } + return $loclist } # msgcat::mcpreferences -- @@ -265,6 +359,391 @@ 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 see list above +# 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 $ns] } + present { return [expr {$locale in [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 + + # unset keys not in global loaded locales + if {[dict exists $Msgs $ns]} { + foreach locale [dict keys [dict get $Msgs $ns]] { + if {$locale ni $LoadedLocales} { + dict unset Msgs $ns $locale + } + } + } + + # 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, set, or unset" + } + } + 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 @@ -277,20 +756,154 @@ 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] { - if { $p eq {} } { + foreach p $locales { + if {$p eq {}} { set p ROOT } set langfile [file join $langdir $p.msg] if {[file exists $langfile]} { incr x - uplevel 1 [list ::source -encoding utf-8 $langfile] + set FileLocale [string tolower\ + [file tail [file rootname $langfile]]] + if {"root" eq $FileLocale} { + set FileLocale "" + } + namespace inscope $ns [list ::source -encoding utf-8 $langfile] + unset FileLocale } } + if {[info exists nestedFileLocale]} { + set FileLocale $nestedFileLocale + } 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. +# failerror (0) Fail on error if true. Otherwise call bgerror. +# +# Results: +# Possible values: +# - 0: no valid command registered +# - 1: registered command was the empty string +# - 2: registered command called, resultname is set +# - 3: registered command failed +# If multiple commands are called, the maximum of all results is returned. + +proc msgcat::Invoke {index arglist {ns ""} {resultname ""} {failerror 0}} { + 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 { + if {$failerror} { + set result [namespace inscope $ns $cmd {*}$arglist] + set ret 2 + } elseif {1 == [catch { + set result [namespace inscope $ns $cmd {*}$arglist] + if {$ret < 2} {set ret 2} + } err derr]} { + after idle [concat [::interp bgerror ""]\ + [list $err $derr]] + set ret 3 + } + } + } + } + return $ret +} + # msgcat::mcset -- # # Set the translation for a given string in a specified locale. @@ -311,20 +924,36 @@ proc msgcat::mcset {locale src {dest ""}} { } set ns [uplevel 1 [list ::namespace current]] - + set locale [string tolower $locale] - - # create nested dictionaries if they do not exist - if {![dict exists $Msgs $locale]} { - dict set Msgs $locale [dict create] - } - if {![dict exists $Msgs $locale $ns]} { - dict set Msgs $locale $ns [dict create] - } - dict set Msgs $locale $ns $src $dest + + dict set Msgs $ns $locale $src $dest return $dest } +# msgcat::mcflset -- +# +# Set the translation for a given string in the current file locale. +# +# Arguments: +# src The source string. +# dest (Optional) The translated string. If omitted, +# the source string is used. +# +# Results: +# Returns the new locale. + +proc msgcat::mcflset {src {dest ""}} { + variable FileLocale + variable Msgs + + if {![info exists FileLocale]} { + return -code error "must only be used inside a message catalog loaded\ + with ::msgcat::mcload" + } + return [uplevel 1 [list [namespace origin mcset] $FileLocale $src $dest]] +} + # msgcat::mcmset -- # # Set the translation for multiple strings in a specified locale. @@ -336,38 +965,53 @@ proc msgcat::mcset {locale src {dest ""}} { # Results: # Returns the number of pairs processed -proc msgcat::mcmset {locale pairs } { +proc msgcat::mcmset {locale pairs} { variable Msgs 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]] - # create nested dictionaries if they do not exist - if {![dict exists $Msgs $locale]} { - dict set Msgs $locale [dict create] - } - if {![dict exists $Msgs $locale $ns]} { - dict set Msgs $locale $ns [dict create] - } foreach {src dest} $pairs { - dict set Msgs $locale $ns $src $dest + dict set Msgs $ns $locale $src $dest } - return $length + return [expr {$length / 2}] +} + +# msgcat::mcflmset -- +# +# Set the translation for multiple strings in the mc file locale. +# +# Arguments: +# pairs One or more src/dest pairs (must be even length) +# +# Results: +# Returns the number of pairs processed + +proc msgcat::mcflmset {pairs} { + variable FileLocale + variable Msgs + + if {![info exists FileLocale]} { + return -code error "must only be used inside a message catalog loaded\ + with ::msgcat::mcload" + } + return [uplevel 1 [list [namespace origin mcmset] $FileLocale $pairs]] } # msgcat::mcunknown -- # # This routine is called by msgcat::mc if a translation cannot -# be found for a string. This routine is intended to be replaced +# be found for a string and no unknowncmd is set for the current +# package. This routine is intended to be replaced # by an application specific routine for error reporting -# purposes. The default behavior is to return the source string. +# purposes. The default behavior is to return the source string. # If additional args are specified, the format command will be used # to work them into the traslated string. # @@ -379,9 +1023,32 @@ proc msgcat::mcmset {locale pairs } { # Results: # Returns the translated value. -proc msgcat::mcunknown {locale src args} { +proc msgcat::mcunknown {args} { + return [uplevel 1 [list [namespace origin DefaultUnknown] {*}$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 [uplevel 1 [list ::format $src {expand}$args]] + return [format $src {*}$args] } else { return $src } @@ -389,7 +1056,7 @@ proc msgcat::mcunknown {locale src args} { # msgcat::mcmax -- # -# Calculates the maximum length of the translated strings of the given +# Calculates the maximum length of the translated strings of the given # list. # # Arguments: @@ -402,10 +1069,10 @@ proc msgcat::mcmax {args} { set max 0 foreach string $args { set translated [uplevel 1 [list [namespace origin mc] $string]] - set len [string length $translated] - if {$len>$max} { + set len [string length $translated] + if {$len>$max} { set max $len - } + } } return $max } @@ -441,34 +1108,79 @@ proc msgcat::ConvertLocale {value} { # Initialize the default locale proc msgcat::Init {} { + global env + # # set default locale, try to get from environment # foreach varName {LC_ALL LC_MESSAGES LANG} { - if {[info exists ::env($varName)] && ("" ne $::env($varName))} { + if {[info exists env($varName)] && ("" ne $env($varName))} { if {![catch { - mclocale [ConvertLocale $::env($varName)] + mclocale [ConvertLocale $env($varName)] }]} { return } } } # - # The rest of this routine is special processing for Windows; - # all other platforms, get out now. + # On Darwin, fallback to current CFLocale identifier if available. # - if { $::tcl_platform(platform) ne "windows" } { + if {[info exists ::tcl::mac::locale] && $::tcl::mac::locale ne ""} { + if {![catch { + mclocale [ConvertLocale $::tcl::mac::locale] + }]} { + return + } + } + # + # The rest of this routine is special processing for Windows or + # Cygwin. All other platforms, get out now. + # + if {([info sharedlibextension] ne ".dll") + || [catch {package require registry}]} { mclocale C return } # - # On Windows, try to set locale depending on registry settings, - # or fall back on locale of "C". + # On Windows or Cygwin, try to set locale depending on registry + # settings, or fall back on locale of "C". + # + + # On Vista and later: + # HCU/Control Panel/Desktop : PreferredUILanguages is for language packs, + # HCU/Control Pannel/International : localName is the default locale. + # + # They contain the local string as RFC5646, composed of: + # [a-z]{2,3} : language + # -[a-z]{4} : script (optional, translated by table Latn->latin) + # -[a-z]{2}|[0-9]{3} : territory (optional, numerical region codes not used) + # (-.*)* : variant, extension, private use (optional, not used) + # Those are translated to local strings. + # Examples: de-CH -> de_ch, sr-Latn-CS -> sr_cs@latin, es-419 -> es # - set key {HKEY_CURRENT_USER\Control Panel\International} - if {[catch {package require registry}] \ - || [catch {registry get $key "locale"} locale]} { - mclocale C + foreach key {{HKEY_CURRENT_USER\Control Panel\Desktop} {HKEY_CURRENT_USER\Control Panel\International}}\ + value {PreferredUILanguages localeName} { + if {![catch {registry get $key $value} localeName] + && [regexp {^([a-z]{2,3})(?:-([a-z]{4}))?(?:-([a-z]{2}))?(?:-.+)?$}\ + [string tolower $localeName] match locale script territory]} { + if {"" ne $territory} { + append locale _ $territory + } + set modifierDict [dict create latn latin cyrl cyrillic] + if {[dict exists $modifierDict $script]} { + append locale @ [dict get $modifierDict $script] + } + if {![catch {mclocale [ConvertLocale $locale]}]} { + return + } + } + } + + # then check value locale which contains a numerical language ID + if {[catch { + set locale [registry get $key "locale"] + }]} { + mclocale C return } # @@ -484,7 +1196,7 @@ proc msgcat::Init {} { set locale [string tolower $locale] while {[string length $locale]} { if {![catch { - mclocale [ConvertLocale [dict get $WinRegToISO639 $locale]] + mclocale [ConvertLocale [dict get $WinRegToISO639 $locale]] }]} { return } |