Status of CJK language support and activities in LibreOffice 2024

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Status of CJK language support and activities in LibreOffice 2024 Shinji Enoki shinji.enoki@libreoffice.org openSUSE.Asia Summit 2024 Tokyo, 3 Nov. 2024

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Agenda ● Typical LibreOffice CJK functions ● Typical LibreOffice CJK issues past one year ● LibreOffice Japanese community activities and TDF’s efforts

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Shinji Enoki ( 榎真治 ) ● Member of LibreOffice Japanese Team(2011-) ● Membership Committee Deputies of The Document Foundation(2020-) ● LibreOffice Activity: Organizing JA events, support JA communitiy, sometimes Ask, translation and QA ● Member of openSUSE.Asia Summit 2024 Tokyo local team ● Other communities: – Volunteer staff of Japan UNIX Society (2011-), Volunteer staff of KANSAI OPEN SOURCE (2006-), Nextcloud JP community, OpenData project(e.g. OpenStreetMap), etc.

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From Settsu( 摂津 ), Japan Settsu City (Close to Osaka)

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Do you know the word “CJK issues”? ● Please raise your hand if you don't know…

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What are CJK issues / bugs ● CJK is an abbreviation for “Chinese-Japanese- Korean” – Sometimes CJKV (including Vietnamese) – In Vietnam, Chinese characters were used in the past. ● Chinese, Japanese, and Korean are different languages and different culture – But they have some common features

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CJK Text Comparison ● Japanese: Kanji (Chinese characters Japanese version) + Hiragana + Katakana – openSUSE に貢献 ( コントリビュート ) する方法は様々です ● Mainland: Simplified Chinese characters – 贡献 openSUSE 的方法有多种 ● Taiwan: Traditional Chinese characters – 貢獻 openSUSE 的方法有多種 ● Korean: Hangul + Hanja (Chinese characters) – openSUSE 에 기여하는 방법은 다양합니다

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TDF : Next Decade Manifesto ● “To support the preservation of mother tongue by encouraging people to translate,document, 　 support, and promote our office productivity tools in their mother tongue” ● For non-Western language people, this is a very important point

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Typical CJK functions

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Overview of CJK functions ● Text Layout – Vertical writing – Phonetic guides (ruby) – Line Composition ● Multibyte character ● Input methods ● Calendar ● ...

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Reference: W3C Requirements documents ● Requirements for Japanese Text Layout – https://www.w3.org/TR/jlreq/ – “This document describes requirements for general Japanese layout realized with technologies like CSS, SVG and XSL-FO. ” ● Requirements for Chinese Text Layout 中文排版需求 – https://www.w3.org/TR/clreq/ – “This document was developed by people working in different areas, using both Simplified and Traditional Chinese. ” ● Requirements for Hangul Text Layout and Typography – https://www.w3.org/TR/klreq/

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Vertical writing (Writer, page) ● Writer: [Page Style] setting can be set to vertical writing – Menu [Format] – [Page...] – [Page] tab

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Vertical writing (Vertical text box) ● Supported by Writer, Calc, Impress, Draw ● Right click on the toolbar-> [Vertical Text] – Note: Different from normal text box 縦書きの Vertical text box

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Phonetic guides (ruby) ● In Japanese and Chinese, mainly indicate how to read https://www.w3.org/TR/jlreq/#ruby_and_emphasis_dots

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● Writer: menu [Format]- [Asian Phonetic guide]

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Justification (Line Adjustment) ● Japanese justification: Calculations based on multiple conditions are required ● Writer, [Paragraph style]-[Japanese appearance] tab option

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3 Option on Option off

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Japanese calendar : Calc ● In Japan, both the Western calendar and Japanese calendar are used ● When the emperor changes, the Japanese era (calendar) also changes

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Differences in rules among CJK ● There are many CJK features that have different requirements and behavior depending on the language ● The position and shape of commas are different between Chinese and Japanese.

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References book ● CJKV Information Processing, 2nd Edition (Ken Lunde, O'Reilly Media, Inc., December 2008) – https://learning.oreilly.com/library/view/cjkv-info rmation-processing/9780596156114/

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Bugzilla on TDF(Bug database)

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Meta issue for CJK ● Bug 83066 : [META] CJK (Chinese, Japanese, Korean, and Vietnamese) language issues – We mainly use this ● Meta issue for each CJK language – Bug 113193 : [META] Traditional Chinese (zh_TW, zh_HK) – Bug 113194 : [META] Simplified Chinese (zh_CN) – Bug 113195 : [META] Japanese CJK issues – Bug 113196 : [META] Korean

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LibreOffice CJK Telegram ● https://t.me/joinchat/CVgtjEKzbQoitBP9aR4alQ ● We have CJK channel but it's not very active

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Fixed CJK bugs in the past year

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Japanese, vertical CTL text: some pasted text displayed incorrectly: Bug#155772 ● In Writer, there are occasionally overlap in the vertical writing ● Fixed 25.2.0 by Jonathan Clark

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PDF export overlaps CJK characters when document has both vertical and horizontal text: Bug 157390 ● Problems exporting to PDF ● Fixed in 24.8.0.2 by Jonathan Clark ● (demo)

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Bug 156543 - [Feature Request] "Mono" feature for the Asian Phonetic Guide ● Feature Requests ● Split a string ● Fixed in 25.2.0 by Jonathan Clark

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Bug 162035 - Cursor movement causes instant crash with spacing 2 and kanji with furigana ● Not a Ruby feature, crash when using Ruby ● Michael Stahl and Stéphane Guillou fix in 25.2.0

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Examples of not fixed CJK bugs

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Full-width list numbering incorrectly uses Latin digits for lines beginning with Latin characters : Bug 161804 ● When multibyte is selected in Writer list symbol ● demo

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Does not display some characters when inputting Japanese: Bug#152293 ● During Japanese input, the part exceeding the width of the cell is not displayed ● Only windows ● Still not fixed ● I don't know if this is only in Japanese

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Bug 161145 - Japanese characters (kanjis, hiragana, katana...) have an extra spacing since version LO 7 ● This is a regression 6.4 24.8

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Japanese community activities and TDF’s efforts

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Contributors retirement and joining ● Japanese community started in 2010, and Japanese team was established in 2011 ● Veterans are retiring more before and during COVID ● There are some new contributors

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Ask LibreOffice: Japanese Mostly 2-3 questions or comments per week Occasionally a few questions

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Ask to Bugzilla ● Information from the Q&A web site (Ask) can also lead to bug reports

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JA Translation

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Japanese Team ● The Japan team is part of the Japanese community ● Communication with other organization and global communities ● Japanese events management and community support ● There are only two active members at the moment. And other members active occasionally – There are several active members of the Japanese community outside of the Japanese team

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Communication ● Mailing lists and Telegram ● Translation discussion mainly ML, but – We sometimes discuss things on Telegram, – and sometimes we discuss things at hack fests and make decisions.

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Events ● Almost still online event – Because organizers are almost two(meguro-san, me) ● Weekly Hackfest: Online – Work together(like a mob work). – Answers on Ask , UI/Help translation on Weblate ● Study meetup held once every 3-4 months: Online

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LibreOffice Kaigi, annual event in Japan ● Jitsi meet + Youtube Live

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LibreOffice day / Open Awaji ● Very small meetups held monthly in person – with other meetup(Open Awaji)

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LibreOffice day / Open Awaji

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LibreOffice Asia Conference 2024 Taiwan

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Next year Asia Conference (in Japan) ● 2019(Japan), 2023(Indnesia), 2024(Taiwan) ● Most of the participants were Taiwanese, Indonesian, and Japanese. ● Next is the second round. ● I hope other Asian contributors will join us

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Next year Asia Conference (in Japan) ● Target date is early December 2025 in Tokyo, but it has not yet been decided

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Jonathan Clark, join to TDF ● He joined as an RTL/CTL/CJK developer ●

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● Jonathan's news is good news ● But there are few active volunteer CJK developers ● We are looking for CJK volunteer developers and contributors— of course, all contributions are welcome

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Conclusion ● Introduction to CJK features and issues ● Share the situation of the TDF and Japanese community ● We are planning next year's Asia conference, please help us and join us ● We invite you to be part of the LibreOffice community

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