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Diffstat (limited to 'tcl/library/msgcat/msgcat.tcl')
| -rw-r--r-- | tcl/library/msgcat/msgcat.tcl | 457 |
1 files changed, 457 insertions, 0 deletions
diff --git a/tcl/library/msgcat/msgcat.tcl b/tcl/library/msgcat/msgcat.tcl new file mode 100644 index 00000000000..eb3b521976e --- /dev/null +++ b/tcl/library/msgcat/msgcat.tcl @@ -0,0 +1,457 @@ +# msgcat.tcl -- +# +# This file defines various procedures which implement a +# message catalog facility for Tcl programs. It should be +# loaded with the command "package require msgcat". +# +# 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: @(#) $Id$ + +package require Tcl 8.2 +# When the version number changes, be sure to update the pkgIndex.tcl file, +# and the installation directory in the Makefiles. +package provide msgcat 1.3 + +namespace eval msgcat { + namespace export mc mcload mclocale mcmax mcmset mcpreferences mcset \ + mcunknown + + # Records the current locale as passed to mclocale + variable Locale "" + + # Records the list of locales to search + variable Loclist {} + + # Records the mapping between source strings and translated strings. The + # array key is of the form "<locale>,<namespace>,<src>" and the value is + # the translated string. + array set Msgs {} + + # Map of language codes used in Windows registry to those of ISO-639 + array set WinRegToISO639 { + 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 + } +} + +# msgcat::mc -- +# +# Find the translation for the given string based on the current +# locale setting. Check the local namespace first, then look in each +# parent namespace until the source is found. If additional args are +# specified, use the format command to work them into the traslated +# string. +# +# Arguments: +# src The string to translate. +# args Args to pass to the format command +# +# Results: +# Returns the translatd string. Propagates errors thrown by the +# format command. + +proc msgcat::mc {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 $Loclist { + if {[info exists Msgs($loc,$ns,$src)]} { + if {[llength $args] == 0} { + return $Msgs($loc,$ns,$src) + } else { + return [uplevel 1 \ + [linsert $args 0 ::format $Msgs($loc,$ns,$src)]] + } + } + } + set ns [namespace parent $ns] + } + # we have not found the translation + return [uplevel 1 \ + [linsert $args 0 [::namespace origin mcunknown] $Locale $src]] +} + +# msgcat::mclocale -- +# +# Query or set the current locale. +# +# Arguments: +# newLocale (Optional) The new locale string. Locale strings +# should be composed of one or more sublocale parts +# separated by underscores (e.g. en_US). +# +# Results: +# Returns the current locale. + +proc msgcat::mclocale {args} { + variable Loclist + variable Locale + set len [llength $args] + + if {$len > 1} { + error {wrong # args: should be "mclocale ?newLocale?"} + } + + if {$len == 1} { + set Locale [string tolower [lindex $args 0]] + set Loclist {} + set word "" + foreach part [split $Locale _] { + set word [string trimleft "${word}_${part}" _] + set Loclist [linsert $Loclist 0 $word] + } + } + return $Locale +} + +# msgcat::mcpreferences -- +# +# Fetch the list of locales used to look up strings, ordered from +# most preferred to least preferred. +# +# Arguments: +# None. +# +# Results: +# Returns an ordered list of the locales preferred by the user. + +proc msgcat::mcpreferences {} { + variable Loclist + return $Loclist +} + +# msgcat::mcload -- +# +# Attempt to load message catalogs for each locale in the +# preference list from the specified directory. +# +# Arguments: +# langdir The directory to search. +# +# Results: +# Returns the number of message catalogs that were loaded. + +proc msgcat::mcload {langdir} { + set x 0 + foreach p [mcpreferences] { + set langfile [file join $langdir $p.msg] + if {[file exists $langfile]} { + incr x + set fid [open $langfile "r"] + fconfigure $fid -encoding utf-8 + uplevel 1 [read $fid] + close $fid + } + } + return $x +} + +# msgcat::mcset -- +# +# Set the translation for a given string in a specified locale. +# +# Arguments: +# locale The locale to use. +# src The source string. +# dest (Optional) The translated string. If omitted, +# the source string is used. +# +# Results: +# Returns the new locale. + +proc msgcat::mcset {locale src {dest ""}} { + variable Msgs + if {[string equal $dest ""]} { + set dest $src + } + + set ns [uplevel 1 [list ::namespace current]] + + set Msgs([string tolower $locale],$ns,$src) $dest + return $dest +} + +# msgcat::mcmset -- +# +# Set the translation for multiple strings in a specified locale. +# +# Arguments: +# locale The locale to use. +# pairs One or more src/dest pairs (must be even length) +# +# Results: +# Returns the number of pairs processed + +proc msgcat::mcmset {locale pairs } { + variable Msgs + + set length [llength $pairs] + if {$length % 2} { + error {bad translation list: should be "mcmset locale {src dest ...}"} + } + + set locale [string tolower $locale] + set ns [uplevel 1 [list ::namespace current]] + + foreach {src dest} $pairs { + set Msgs($locale,$ns,$src) $dest + } + + return $length +} + +# 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 +# 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 +# to work them into the traslated string. +# +# Arguments: +# locale The current locale. +# src The string to be translated. +# args Args to pass to the format command +# +# Results: +# Returns the translated value. + +proc msgcat::mcunknown {locale src args} { + if {[llength $args]} { + return [uplevel 1 [linsert $args 0 ::format $src]] + } else { + return $src + } +} + +# msgcat::mcmax -- +# +# Calculates the maximun length of the translated strings of the given +# list. +# +# Arguments: +# args strings to translate. +# +# Results: +# Returns the length of the longest translated string. + +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 max $len + } + } + return $max +} + +# Convert the locale values stored in environment variables to a form +# suitable for passing to [mclocale] +proc msgcat::ConvertLocale {value} { + # Assume $value is of form: $language[_$territory][.$codeset][@modifier] + # Convert to form: $language[_$territory][_$modifier] + # + # Comment out expanded RE version -- bugs alleged + # regexp -expanded { + # ^ # Match all the way to the beginning + # ([^_.@]*) # Match "lanugage"; ends with _, ., or @ + # (_([^.@]*))? # Match (optional) "territory"; starts with _ + # ([.]([^@]*))? # Match (optional) "codeset"; starts with . + # (@(.*))? # Match (optional) "modifier"; starts with @ + # $ # Match all the way to the end + # } $value -> language _ territory _ codeset _ modifier + regexp {^([^_.@]*)(_([^.@]*))?([.]([^@]*))?(@(.*))?$} $value \ + -> language _ territory _ codeset _ modifier + set ret $language + if {[string length $territory]} { + append ret _$territory + } + if {[string length $modifier]} { + append ret _$modifier + } + return $ret +} + +# Initialize the default locale +proc msgcat::Init {} { + # + # set default locale, try to get from environment + # + foreach varName {LC_ALL LC_MESSAGES LANG} { + if {[info exists ::env($varName)] + && ![string equal "" $::env($varName)]} { + mclocale [ConvertLocale $::env($varName)] + return + } + } + # + # On Windows, try to set locale depending on registry settings, + # or fall back on locale of "C". Other platforms will return + # when they fail to load the registry package. + # + set key {HKEY_CURRENT_USER\Control Panel\International} + if {[catch {package require registry}] \ + || [catch {registry get $key "locale"} locale]} { + mclocale C + return + } + # + # Keep trying to match against smaller and smaller suffixes + # of the registry value, since the latter hexadigits appear + # to determine general language and earlier hexadigits determine + # more precise information, such as territory. For example, + # 0409 - English - United States + # 0809 - English - United Kingdom + # Add more translations to the WinRegToISO639 array above. + # + variable WinRegToISO639 + set locale [string tolower $locale] + while {[string length $locale]} { + if {![catch {mclocale [ConvertLocale $WinRegToISO639($locale)]}]} { + return + } + set locale [string range $locale 1 end] + } + # + # No translation known. Fall back on "C" locale + # + mclocale C +} +msgcat::Init |