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dpavlin |
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package provide mlcm::lang 0.1 |
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namespace eval mlcm::lang { |
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array set _keys {} |
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array set _dbs {} |
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# default lang: en |
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set _alang "" |
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set _keydb "" |
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set _stb "" |
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# loads some defaults |
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proc init {} { |
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variable _stb |
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set _stb [ openIsis ] |
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$_stb add syspath /opt/openisis/db |
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set lang "en" |
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loadmap "" |
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load $lang "" |
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activate $lang |
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} |
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# loads a key -> value mapping for messages |
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# @param stb db stub to be used |
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# @param path db holding the (reverse) key value mappings |
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# the mfn stands for the message id, tag 0 for the key |
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proc loadmap { path } { |
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variable _stb |
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variable _keydb |
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if { "" == $path } { |
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set syspath [$_stb get .syspath ] |
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set path "$syspath/msg/key" |
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} |
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$_stb req type open db $path |
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set err [openIsis::errno $_stb] |
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if { $err } { |
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puts "WARNING: could not open key map db @ $path" |
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return -1 |
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} else { |
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puts "opened key db on path $path" |
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} |
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set _keydb [ $_stb .res get db ] |
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} |
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# loads a message set for a specific language |
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# @param stb db stub to be used |
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# @param lang the language key to access the message set; |
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# should be a two-letter language code |
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# @param path db holding the message set; the message db |
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# is compatible to the WinISIS style |
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# @return 0 on success else the openisis error code |
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proc load { lang path } { |
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variable _stb |
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variable _dbs |
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# no db path given; revert to default |
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if { "" == $path } { |
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set syspath [$_stb get .syspath ] |
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set path "$syspath/msg/ms$lang" |
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} |
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puts "using msgdb path: $path for lang $lang" |
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$_stb req type open db $path |
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set err [openIsis::errno $_stb] |
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if { $err } { return $err } |
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openIsis::prnres "open $path" $_stb |
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set _dbs($lang) $path |
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} |
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# activates a given lang if previously loaded |
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proc activate { lang } { |
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variable _alang |
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variable _dbs |
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set db "" |
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if { [ catch { set db $_dbs($lang) } ] } { |
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puts "Language $lang not loaded" |
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} else { |
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set _alang "$lang" |
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puts "Language $lang now active" |
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} |
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} |
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# returns a raw msg |
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proc rawMsg { key } { |
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variable _stb |
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variable _alang |
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variable _dbs |
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set id [ _lookup $key ] |
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if { $id } { |
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incr id -1 |
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set msg [ _xlate $id ] |
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if { "" != $msg } { return $msg } |
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} |
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return $key |
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} |
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# returns a msg w/o any appended command |
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proc strippedMsg { key } { |
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return [_cleanCmd [rawMsg $key ]] |
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} |
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# returns a completely cleaned msg |
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proc msg { key } { |
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return [_cleanAmp [strippedMsg $key]] |
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} |
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# looks up a key from the |
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proc _lookup { key } { |
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variable _stb |
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variable _dbs |
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variable _keydb |
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$_stb req type query mode 0 key $key db $_keydb |
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set size [$_stb .res get size] |
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if { 1 != $size } { return 0 } |
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set id [$_stb .res get rowid] |
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return $id |
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} |
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# translates a message id to the given lang |
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proc _xlate { id } { |
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variable _stb |
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variable _alang |
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variable _dbs |
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set mfn [ expr {$id/10+1} ] |
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set tag [ expr {[expr {$id+1}]%10} ] |
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$_stb req type read rowid $mfn db $_dbs($_alang) |
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set size [$_stb .res get size] |
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if { ! $size } { return "" } |
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set msg [lindex [$_stb .res .rec get $tag ] 0 ] |
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return $msg |
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} |
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# cleans msg from appended command |
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proc _cleanCmd msg { |
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regsub {\[.*\]} $msg {} msg |
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return $msg |
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} |
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# cleans msg from ampersands |
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proc _cleanAmp msg { |
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regsub -all {\&} $msg {} msg |
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return $msg |
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} |
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} |
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