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由於有人在討論區上提議要把 piaip 的 MozLCDB 文件翻成中文，所以把大家翻的放到這邊。
該文件原文位於 http://moztw.org/tools/mozlcdb/
另外，請大家翻譯時，使用全形的標點符號（如 "，" 和 "。" 而非 "," 或 "."）
也請在中英文之間空一格半形的空格。

MozLCDB: What is it? 什麼是 MozLCDB 呢？

MozLCDB is a tool made for localization of various Mozilla (Gecko) based products. It is designed to resolve issues introduced since Mozilla Firefox 1.0 branch, and a replacement for MozillaTranslator.

MozLCDB 是為了眾多基於 Mozilla (Gecko) 產品的本地化而設計的工具。它是為了解決由 Mozilla Firefox 1.0 產生的問題，也是 MozillaTranslator 的替代品。
by Milo

The author and "Why a new tool?" 關於作者以及「為何要用新工具」？

This is Hung-Te Lin, maintainer of Traditional Chinese Mozilla Localization and the famous "mozip" (a tool to make Win32 localized builds).

我是林弘德。Mozilla 正體中文本地化以及知名的 mozip (一個編譯 Win32 本地化版本的工具)的維護者。

I have been using MozillaTranslator for years (whether the official builds or my own tweaked versions) since Mozilla M14 (Milestone 14, not 1.4. The M series are older than Mozilla 0.6). During these years MT works O.K although more and more extra works have to be done because Mozilla locale structure changes all the time.

我從 Mozilla M14 （Milestone 14，不是 Mozilla 1.4，M 系列比 Mozilla 0.6 還要早） 開始使用 MozillaTranslator(MT) 已經許多年了（不論是正式版本或是我修改過的）。這些年來 MT 都可正常運作，雖然由於 Mozilla 的 locale 架構經常改變，需要下更多額外的功夫。

Since the landing of Mozilla Firefox 1.0PR, localizers of Mozilla* suffered from the huge changes in Mozilla locale structure and new CVS requirements. Unfortunately, MozillaTranslator does not work anymore. Although MT has released new versions to solve issues, after trying MT5.04 I think it's time to develop a new tool which is more robust or I have to manually do many extra work for all versions. With my experience in localization, I proposed what I need and made a new tool, named MozLCDB. This name is a little weird because the better name 'MLDB' is already taken by others. Hmmm. Maybe MLD?

I'm not an perl guru so this script is not perfect nor elegant now, but it helped me to generate a working Firefox 1.0PR locale without too much effort (in comparision to fight with MozillaTranslator).



自從 Mozilla Firefox 1.0PR 推出後，Mozilla* 的許多本地化作者因為 Mozilla 的 locale 架構和新的 CVS 需求巨大的變化而遭遇許多麻煩。不幸地，MozillaTranslator 沒有用了。雖然 MT 發布新版本解決了很多問題，在用過 MT5.04 之後我認為是發展更加強大的新工具的時候了，否則我得爲新版本手動處理很多東西。我在本方化方面的經驗中，我檢討了我的訴求並且做了一套新工具，名為 MozLCDB。這個名稱是有點古怪，因為更好的名稱 「MLDB」已經有其他人使用了。嗯...可能可以叫 MLD？

我並不是 perl 高手因此這個 script 並不完美也不好看，但它讓我不須花太大功夫就能建立 Firefox 1.0PR 的 locale（與其與 MozillaTranslator 奮鬥）。 by tszkin, modded by Kourge

Features of MozLCDB MozLCDB 的功能

MozLCDB is focused to Mozilla Localization. In comparsion to MozillaTranslator, you'll notice that:

• MozLCDB is just a perl script with command line only, no GUI.
  

You can (and you have to) edit all stuff with your favorite editor.

• Targeted for Multiple Product maintaince.
  

That is, you can really localize Mozilla, Firefox, Thunderbird, Netscape, and keep only one instance for same chrome node.

• Works for both CVS and downloaded ZIP language packs
• The stored database is more human readable/editable
• Single locale per database file. Does not support multiple locale (MT does).
  

You have to use multiple database files if you need multiple locale.

• Easily modified if you understand Perl.
  

MozLCDB 主要用於 Mozilla 本地化。相比 MozillaTranslator 來說，你會注意到：

• MozLCDB 是只有命令列模式（Command Line）的 perl script，沒有 GUI（圖形介面）。
  

你可以(而且也必須)使用任何你想使用的編輯器來修改所有東西。

• 可以針對多個產品維護。
  

也就是說，你可以本地化 Mozilla、Firefox、Thunderbird、Netscape 而只需使用一個相同 Chrome 節點的實體。

• 能與一起 CVS 協同工作及下載 ZIP 語言套件
• 儲存的資料庫格式更可讓人讀寫。
• 每個資料庫檔只支援一個 locale。不支援多 locale （MT 可以）。
  

假如你需要製作多個 locale，你要使用多個資料庫檔案。

• 假如你了解 perl 語言，這支程式可是相當容易修改。

by a guest on the forums

Requirements 系統需求

You need these stuff:

• Perl 5.8 or later versions
• Your favorite editor (with the ability to open/save UTF-8, like VIM which is my own choice)
• (optional) Any ZIP archiver if you want to use ZIP/JAR languagepack or if you want to import MozillaTralsator glossary
• (optional) Python 2.0+ if you want to import MozillaTranslator glossary
• (optional) Knowledge of Perl if you got problems or want to modify it

你需要下面這些東西：

• Perl 5.8 或以上版本
• 你所偏好的編輯器 （要有能力開啟及儲存 UTF-8，比如我選擇的是 VIM）
• （選用） 如果你要使用 ZIP 或是 JAR 語言套件或是你想匯入 MozillaTralsator 的詞庫，需要一個 ZIP 壓縮程式
• （選用） 如果你想要匯入 MozillaTranslator 的詞庫，你需要 Python 2.0+
• （選用） Perl 的相關知識，這樣你遇到問題才可以自行解決或是修改它

by Jose Sun

Download 下載

Get these files:

• Latest version: Saturday, 02-Oct-2004 11:00:43 CST (hack on your own!)
• Releases:
  • Version 0.2 (Stable, approved with FF1.0/TB0.8)
  • Version 0.1 (a little buggy)

取得這些檔案：

• 最新版本： 2004 å¹´ 8 月 2 日，星期六 11:00:43 CST (hack on your own!)
• 釋出版本:
  • 版本 0.2 (穩定版本，FF1.0/TB0.8 測試通過)
  • 版本 0.1 (有些「小臭蟲」)

by Jose Sun

Background Knowledge 背景知識

This section explains the basic idea about MozLCDB. It helps you to understand it more although you may use it without knowing anything explained here. Yes, you can go to "Usage:" sections if you are in a hurry. However it is highly recommended to get things clear before you start.

這一節會解釋 MozLCDB 的基本概念。雖然你使用它的時候不需要任何底下說的知識，但是可以幫助你更了解它。是的，如果你趕時間的話可以直接到 "用法：" 這一節。但是無論如何我都強烈建議你在開始之前先把這些知識弄清楚。by Jose Sun

Workflow 工作流程

I'm trying to explain the workflow of MozLCDB here. Don't worry about the terms quoted, they will be explained in following subsections.

Basically, MozLCDB works in this manner: MozLCDB tries to 'import' from a 'prepared directory' (pulled from CVS or ZIP language pack), then save and merge into a '(glossary) database'. If any new locale string or updated ones are found, these entries will be written to an 'input (editing) table'. You can then edit the input table to do localization. After everything is done, you have to 'update' the '(glossary) database' with your 'input (editing) table'. Then you can 'export' the locales to another 'prepared directory'. Finally, the 'prepared directory' will contain all the localized stuff.

我試著在這裡解釋 MozLCDB 的工作流程。不用擔心那些標記起來的術語，接下來的小節都會一一解釋。

基本上，MozLCDB 以這種方法運作：MozLCDB 會從 '已備妥目錄' (可以從 CVS 或 ZIP 語言套件取得)試著 '匯入' 資料，然後儲存並合併到 '(詞彙) 資料庫'。如果找到任何新的或更新過的 locale 字串，這些項目就會被寫入到 '輸入 (編輯) 表'。你可以編輯輸入表來進行本地化。一切都做完了以後，你必須用你的 '輸入 (編輯) 表' 來 '更新' 你的 '(詞彙) 資料庫'。接著你可以 '匯出' 那些 locale 到另一個 '已備妥目錄'。最後，'已備妥目錄' 會有所有本地化過的東西。by Jose Sun and kourge

File Format and Default Filenames 檔案格式和預設檔案名稱

MozLCDB tries to record everything in a text file named 'mozlcdb.txt'. It is saved in perl Dump format, however it is still readble ( if you know a little perl) and also called as the 'glossary' (due to MT) or 'database'. And there's another format of input that MozLCDB can read: the input (editing) table. It is more human readble and looks like DOS/WIN INI or GNU PO format. The default file name of this kind file is 'current.txt'. When importing from and exporting to Mozilla locale directories, currently MozLCDB recognizes only DTD and ".properties" files.

MozLCDB 會試著在一個名為 'mozlcdb.txt' 的文件內紀錄所有東西。它是以 perl 的傾印(dump)格式儲存，不過還是可讀的 (如果你懂一點 perl)，也被稱為 '詞彙' (照 MT 那樣) 或 '資料庫'。還有另外一種 MozLCDB 能讀取的格式：輸入 (編輯) 表。這種格式比較能給人看，而且看起來很像 DOS/WIN 的 INI 或 GNU 的 PO 格式。這種檔案的預設檔案名稱是 'current.txt'。當匯入自或匯出至 Mozilla locale 目錄時，MozLCDB 目前只辨認 DTD 和 ".properties" 檔案。by kourge

Import, Export, and Update 匯入、匯出、及更新

import means to read locales from Mozilla files into the database.
export means to write locales from database into real Mozilla files.
update means to read locales from an input (editing table) into the database.

匯入的意思是從 Mozilla 的檔案讀取 locale 並放進資料庫。
匯出的意思是從資料庫寫入 locale 成真正的 Mozilla 檔案
更新的意思是從輸入(編輯表)讀取 locale 至資料庫。by kourge

Directory Structure 目錄結構

Mozilla locale is stored in a hierarchical directory structure, also refered as chrome node. So you will see a very long path like "locale/en-US/global/global.dtd" in the directory you pulled from CVS or extracted from a language pack. MozLCDB mostly runs with the level just after where 'en-US' sits, so whether you're working with CVS or language pack, you must move directories (or move mozlcdb program and files) and assign correct ROOT path to fit thie rule. Then it can be called as a 'prepared directory'. (P.S: Actually, you can run in any level of directories. But you may get problems if you work in that way.)

Mozilla 的 locale 是存在階層式目錄結構內的，又被稱為 chrome 節點（chrome node）。因此你會在你從 CVS 拉的目錄或你解壓縮的語言包看到很長的路徑，如 "locale/en-US/global/global.dtd"。MozLCDB 通常會在 'en-US' 所在之內的地方執行，所以不管你是不是在處理 CVS 或語言包，你都必須移動目錄 (或 MozLCDB 的程式或檔案) 並指定正確的 ROOT 路徑以符合此規則。這時，這個目錄就能夠被稱為 '已備妥目錄'。(P.S: 其實，你愛在哪個目錄執行都可以。不過，如果你非要那樣，就可能會出問題。)by kourge

ROOT

What's the ROOT? It's a PATH to help MozLCDB find corresponding locale path. For example, if my current directory is D:\Mozilla\LC (Win) or /home/moz/lc (UNIX) and my locale is in full path of D:\Mozilla\LC\locale\en-US\global\... or /home/moz/lc/locale/en-US/global/..., then you have to use ROOT as locale/en-US.

ROOT 是啥？ROOT 是讓 MozLCDB 找到對應 locale 的路徑。比如說，如果我目前的目錄是 D:\Mozilla\LC (Win) 或 /home/moz/lc (UNIX) 而我絕對路徑的 locale 是 D:\Mozilla\LC\locale\en-US\global\... 或 /home/moz/lc/locale/en-US/global/...，那你的 ROOT 應該就是 locale/en-US。by kourge

The procedure of 'Import'and Multiple Product '匯入' 步驟和跨產品

What really happened when you 'import'? MozLCDB will scan and walk through all files inside the 'prepared directory' assigned by ROOT. Currently, only *.dtd and *.properties will be processed. All other files will be ignored.

When one DTD or properties file was found, MozLCDB first reads its content for the 'key's and original locales. If a key was not found (never seen), it will be inserted into database as a 'new' entry. If a key was found, MozLCDB will determine what to do depending on the original (en-US) locale message. If it is exactly same as some version recorded in database, it is considered a 'same' entry with no new entries introduced. If no entries with same original could be found, MozLCDB will append one entry with timestamp into database. This is the magic to make multiple product possible. We keep all versions of original messages.

當 '匯入' 時會發生什麼事？MozLCDB 會掃描一遍根據 ROOT 路徑對應的 '已備妥目錄' 中的所有檔案。目前只有 *.dtd 和 *.properties 會被處理。其他的檔案會被忽略。

當找到一個 DTD 或 properties 檔時， MozLCDB 會先讀取裡面的 'key'(譯註：後面我還沒看所以不知道這是啥...= =) 和原始 Locale 內容。如果找不到 key 時 (從來沒看過)，就會在資料庫中插入一個 '新' 欄位。如果找到 key，MozLCDB 會根據原始 (en-US) 的 Locale 訊息決定要做什麼動作。如果與資料庫中某版本的紀錄完全相同，就不會產生 '新' 的欄位而使用 '同樣' 的欄位。如果找不到和原始內容相同的欄位，MozLCDB 會附加一個帶有時間戳記的欄位到資料庫中。這就是能夠達到跨產品功能的神奇之處。我們保留了所有版本的原始訊息。 by Jose Sun

The procedure of 'Export' '匯出'步驟

What really happened when you 'export'? MozLCDB will scan and walk through all files inside the 'prepared directory' assigned by ROOT. Currently, only *.dtd and *.properties will be processed. All other files will be ignored.

When one DTD or properties file was found, MozLCDB first reads its content for the 'key's and original locales, then try to lookup database to decide what localized string to put in. If you export with '-x', MozLCDB assume you are working with a clean original copy exactly just what you have imported, so it will check for existence of keys and original locale message. However, you may want to export to a working (trial) copy. In that usage, -x will warn and stop because original message is filled with your localized strings. In this case you may use '-X' which will not check for keys.

Usage: Syntax Overview

Run 'mozlcdb.pl -h' to see its syntax: usage: mozlcdb.pl [-uUixXen] [PATH] ... [-u] : (default) update editing table (current.txt) to database -U [files...]: import/update from editing table -i ROOT: import files from ROOT(jar file or directory root) -x ROOT: extract and update files in ROOT. -X ROOT: extract and update files in ROOT, ignore errors. -e : generate latest version of full table from database -n ROOT1 ROOT2: init with ROOT1 as en while ROOT2 as tr [CARE] -c : check database -r aa-BB DispName: update "contents.rdf" locale entries from en-US to aa-BB with DispName

Usage: Import from MozillaTranslator

If you don't need to import from MozillaTranslator, skip this section. You must have python working before you start the procedure.

I know this is weird: why python, not perl? Because this python script is modified by another python script I wrote years ago and I'm too tired to make another perl version.

First, unzip your glossary.zip which is in same directory of MozillaTranslator. You will find a "glossary.txt". Then run mt2mldb.py which is included in the program archive in same directory. python mt2mldb.py

If no errors occurs, You will see a "mldb.out". Run the main program: perl mozlcdb.pl -U mldb.out

Usually you'll get some warnings about "Not sync". Don't worry about that. 

If you have a "mozlcdb.txt" which is not 0 bytes in your directory now, congradulations, you have successfully imported MT glossary. Check mozlcdb.txt. Entries of chrome nodes should be look like "browser/metaData.dtd". If you see "locale/en-US/...." of "en-US/...", please use the replace feature of your editor to fix this error. This is caused by some different MozillaTranslator.

Usage: Import from an already localized language pack

If you have an already working language pack, say aa-BB, you must get its matching version of en-US package or importing may be useless.

Unzip your language pack jar files (both for aa-BB and en-US). If region directory is included as BB and US, move all stuff inside BB/ and US/ to aa-BB/ and en-US/ Move directories so that you can see en-US/ and aa-BB/ and your mozlcdb.pl in same directory. perl mozlcdb.pl -n en-US aa-BB

If it stopped and giving you errors, try to identify what file stopped it. Try to resolve on your own if you know perl (feedback welcome), or mail me. If you have a "mozlcdb.txt" which is not 0 bytes in your directory now, congradulations, you have successfully imported MT glossary.

Usage: Import from CVS directory

Remember to backup your glossary database (mozlcdb.txt) before you import because you can rollback if anything goes wrong. First, you must pull from CVS directory. I'm not going to explain details here. Check here. Now make sure what's your ROOT. Look at the previous section of 'Background Knowledge'. If you have CVS pulled as 'mozilla/toolkit/locales' and 'mozilla/browser/locales' in your current directory, please use ROOT as "mozilla/toolkit/locales/en-US/chrome mozilla/browser/locales/en-US/chrome". Run this command: perl mozlcdb.pl -i ROOT

Example: 

perl mozlcdb.pl -i mozilla/toolkit/locales/en-US/chrome mozilla/browser/locales/en-US/chrome

You should see a 'current.txt' generated now.

Usage: Import from ZIP(JAR) language pack

Remember to backup your glossary database (mozlcdb.txt) before you import because you can rollback if anything goes wrong. Extract en-US.jar (and en-[win|unix|mac].jar, US.jar if you have them) to some place Now make sure what's your ROOT. Look at the previous section of 'Background Knowledge'. If you are working with Firefox 1.0PR, you'll see a directory named 'locale'. That's the ROOT. Run this command: perl mozlcdb.pl -i ROOT

Example: 

perl mozlcdb.pl -i locale

You should see a 'current.txt' generated now. Usage: Working with input(editing) table The input(editing) table is named 'current.txt'. You should see it after you imported something (except importing from MozillaTranslator or already localized language pack). The format is very simple. Take this for example:

comment [browser/aboutDialog.dtd] id=aboutVersion en=version tr=PUT YOUR LOCALIZED STRING HERE.

All lines stared with ';' are comments. [ ] marks the chrome node. i.e., the file path after ROOT. DO NOT CHANGE THIS. id= means the 'key' in file. DO NOT CHANGE THIS. en= Original en-US locale string. DO NOT CHANGE THIS. tr= Translated locale. This is really what you are going to work with.

P.S: Updated and newly found strings will be ";tr=" commented at first. Remeber to remove the ";" mark when you localized one. kp= Just like keep in MT. kp=1 will ignore tr= when exporting. cm= Comment. Similiar to 'localization note' in MT. Does nothing. Keep in mind that you should use UTF-8 file encoding.

Usage: Update database with an input table

When you finished editing, you have to update database. This is the default action if you give no arguments to MozLCDB. perl mozlcdb.pl (or) perl mozlcdb.pl -u

Usage: Export database to CVS

Before you export, you have to request for CVS account. Although you may already checked in your locale module, for example aa-BB, but we're not going to use it. Please review the section of 'Background Knowledge' for 'The procedure of Export'. You have to use the original dtd and properties files from en-US. Prepare a directory of original files. You may just copy from original en-US directory, like cp -R mozilla/toolkit/locales/en-US/chrome aa-BB-toolkit cp -R mozilla/browser/locales/en-US/chrome aa-BB-browser

The commands (UNIX only) above will generate ROOT of "aa-BB-toolkit aa-BB-browser".

If you use Windows, you can use Explorer to copy.

For me, I'd like to copy original files into aa-BB CVS directory: (the aa-BB is exactly the CVS directory of locale aa-BB in the example, and the commands are witten with bash. You have to modify it to fit your own environment.) find aa-BB -name "*.dtd" -delete; find aa-BB -name "*.properties" -delete; for X in `find en-US -name "*.dtd"` ; do cp $X ${X/en-US/aa-BB} ; cvs add ${X/en-US/aa-BB}; done Run the export command. perl mozlcdb.pl -x ROOT For example: perl mozlcdb.pl -x aa-BB-toolkit aa-BB-browser

After your first export, you may try (see the next subsection)the exported stuff. Then you can modify the input table and 'update' database again. And for the second time you want to 'export', things get easier. You don't have to prepare directory again. just use same ROOT and change -x to -X: perl mozlcdb.pl -X ROOT

Finally, after you get a stable version, pleas make sure you have all *.dtd and *.properties added into CVS. And CVS commit!

Usage: Export database to a standalone language pack, or JAR files

Before you start, there's something you have to know. Currently we don't have a really good method for changing locale in Firefox (maybe we will never do), and the bug of "using extensions without corresponding locale leads to crashing" is still there (maybe will be solved in 1.0 release), so trying to provide language packs for end user is really a mess. The better way is to export to CVS files and let mozilla.org build a official localized build. And if you want to make end user happy, due to the issues I mentioned above, here I described is kind of 'hacked' language pack. I'll export files, and make them with en-US chrome node path, and save to an 'en-US.jar' to replace the original en-US.jar.

This is NOT GOOD, but seems like making most end user happy. If you don't want to make such evil language packs, you have to go manually edit every *.rdf in directories, and prepare install.rdf or install.js.

OK... But if you are happy with evil packs, or you're just trying your newly localized stuff (this is mainly what I use this feature now for) , here's how to make it work:

Prepare a directory of original files. You may extract from en-US.jar, and mostly you will have a directory named 'locale'. Now identify your ROOT. In the case above, it is just 'locale'. Export with: perl mozlcdb.pl -x ROOT For example, perl mozlcdb.pl -x locale If you are building a jar with new locale instead of replacing en-US, use perl mozlcdb.perl -r aa-BB "Language Name" ROOT

which will update all the 'contents.rdf' in ROOT. However, using a new locale name will require a mechanism of locale switching. 

Package your ROOT to a jar(ZIP) just like the layout of en-US.jar. For Windows, use your favorite archiver (WinRAR, or WinZIP, ... etc) For UNIX: zip -r0 en-US.jar locale

Now move the newly created jar to where your Firefox's en-US.jar is, replace it, and restart Firefox! You should be able to see your results, a localized Firefox now. After your first export, you may try the exported stuff. Then you can modify the input table and 'update' database again. And for the second time you want to 'export', things get easier. You don't have to prepare directory again. just use same ROOT and change -x to -X: perl mozlcdb.pl -X ROOT

If you want to create language pack or localized builds (again, this is NOT EASY and NOT SUGGESTED if you want to release files in this way. You should use CVS and let mozilla.org do this work. Care.... files made in this way cannot be called 'Official' due to new L10N policy), please see Creating a Localized Installera and Localizing Firefox . An easy hack is just to put the new en-US.jar into a Firefox installer, anyway.

Usage: Things left

Some commands are not explained in previous sections.

-e can export whole keys in a database (used if your input table is broken). -U can update database with editing tables with less checking. -c can check database with some rules to help you find buggy phrases like a typo of %s and %S or " " without the trailing ';'.

Usage: Tips

This program is still under development. Please backup your database (mozlcdb.txt) before doing any big changes, like -U or -i. Each time you have imported something, the 'current.txt' will be overwritten by a new one. So before you do an import, make a copy of last edited 'current.txt'. If you find any file with all-new locales (the information was displayed when you import/...etc), try to take a look at it. Maybe it's file just being renamed/moved. You may edit database to change/duplicate a copy of that to avoid doing all stuff again. A smarter rule of guessing new values is on plan.

Epilogue

This program is still under development. I used it sucessfully to make a working language pack (well, the en-US.jar) for Mozilla Firefox 1.0PR, Traditional Chinese. I'm not sure whether it is easy enough for most people or not, but it is designed for all what I need. So here I present it to all who needs to localize new Mozilla products but could not find any working tools to go on.

If you have any suggestions/problems, feel free to contact me. You can also use mozilla-l10n mailing list.

Copyright 版權宣告

MozLCDB is licensed under MPL 1.1 . This program and document is made by Hung-Te Lin. Allrights reserved.

MozLCDB是授權於MPL 1.1。這個程式和文件是由林弘德製作的。版權所有 不得轉載 byTszkin