LaTeX News斜め読み / texconf2024-ltnews

近年、とりわけ2018年以降、LaTeXチームによるカーネルやコアパッケージの開発は以前と比べて活発に行われるようになっています。こうしたLaTeXチームの活動は、半年に一度行われるLaTeXリリースの際に発行されるLaTeX Newsにまとめられています。本講演では、特に最近（概ね2022年以降）の変更に注目しつつ、LaTeX Newsの内容を斜め読みのようにかい摘んで紹介します。LaTeXの活発な開発活動の背景には、expl3という名で開発されてきたLaTeXの新しいプログラミング層の成熟やアクセシビリティ向上のためのタグ付きPDFプロジェクトの存在があります。LaTeX Newsの内容紹介にあたっては、単に時系列順に更新点を列挙するのではなく、背景にある大きな流れを示しながら対応する機能や変更を並べることで、近年のLaTeX開発の方針や潮流を読み取ることを目指します。なお、本講演は発表者のブログ連載『LaTeX News斜め読み』の内容を再編・補強して構成します。

Transcript

1. L ATEX News ࣼΊಡΈ L A TEX NewsࣼΊಡΈ ே૔୎ਓ 2024-11-30 @ TEXConf2024 1 / 19
2. L ATEX News ࣼΊಡΈ L A TEX2𝜺 30೥ͷาΈ 1994 LaTeX2e஀ੜ 1995 TeX Live஀ੜ 1997 pdfTeXϦϦʔε 2007 upTeXϦϦʔε 2010 LuaTeXϦϦʔε 2015 ੵۃ։ൃͷ࠶։ 2019 λά෇͖1%'ɹɹ
   2019 ϓϩδΣΫτ։࢝ 2020 expl3ͷΧʔωϧ౷߹ ۭനͷ20೥ 2 / 19
3. L ATEX News ࣼΊಡΈ L A TEX Newsͱ͸ L A TEX νʔϜ͕֤ϦϦʔεͱಉ࣌ʹൃߦ͢ΔχϡʔεϨλʔ ɹ ɹ L A TEX ͷϦϦʔε͸௨ৗ 6 ݄/11 ݄ͷ೥ 2 ճ ɹ ɹ جຊతʹ͸ߋ৽ཤྺతͳ಺༰ ▶ ͦͷϦϦʔεͰ௥Ճ͞Εͨ৽ػೳ΍όάमਖ਼ͷઆ໌ ▶ ·Εʹத௕ظߏ૝ͷղઆͳͲ΋ ɹ ɹ ‌ texdoc ltnews ‌ or https://www.latex-project.org/news/ L ATEX News, Issues 1–40 Contents Issue 1, June 1994 (1994-06-01) 5 Welcome to L A TEX News . . . . . . . . . . . . . 5 L A TEX2Á—the new L A TEX release . . . . . . . . 5 Why a new L A TEX? . . . . . . . . . . . . . . . . 5 Processing documents with L A TEX2Á . . . . . . 5 New packages . . . . . . . . . . . . . . . . . . . 5 Further information . . . . . . . . . . . . . . . 5 Issue 2, December 1994 (1994-12-01) 6 Welcome to L A TEX News 2 . . . . . . . . . . . . 6 December 1994 release of L A TEX . . . . . . . . . 6 Accented input . . . . . . . . . . . . . . . . . . 6 AMS-L A TEX . . . . . . . . . . . . . . . . . . . . 6 L A TEX on the internet . . . . . . . . . . . . . . 6 Further information . . . . . . . . . . . . . . . 6 Issue 3, June 1995 (1995-06-01) 7 Welcome to L A TEX News 3 . . . . . . . . . . . . 7 June 1995 release of L A TEX . . . . . . . . . . . . 7 Additional input encodings . . . . . . . . . . . 7 L A TEX getting smaller . . . . . . . . . . . . . . 7 Distribution and modification . . . . . . . . . . 7 AMS-L A TEX full release . . . . . . . . . . . . . . 7 PostScript fonts . . . . . . . . . . . . . . . . . . 7 Further information . . . . . . . . . . . . . . . 7 Issue 4, December 1995 (1995-12-01) 8 Welcome to L A TEX News 4 . . . . . . . . . . . . 8 L A TEX getting smaller . . . . . . . . . . . . . . 8 New ‘concurrent’ docstrip . . . . . . . . . . . . 8 Issue 6, December 1996 (1996-12-01) 11 Welcome to L A TEX News 6 . . . . . . . . . . . . 11 Mono-case file names . . . . . . . . . . . . . . . 11 Another input encoding . . . . . . . . . . . . . 11 Better user-defined math display environments 11 Docstrip improvements . . . . . . . . . . . . . . 11 AMS L A TEX update . . . . . . . . . . . . . . . . 11 Graphics package update . . . . . . . . . . . . 11 EC Fonts released . . . . . . . . . . . . . . . . 11 Issue 7, June 1997 (1997-06-01) 12 T1 encoded Computer Modern fonts . . . . . . 12 T1 encoded Concrete fonts . . . . . . . . . . . 12 Further input encodings . . . . . . . . . . . . . 12 Normalising spacing after punctuation . . . . . 12 Accessing Bold Math Symbols . . . . . . . . . . 12 Policy on standard classes . . . . . . . . . . . . 12 New addresses for TUG . . . . . . . . . . . . . 12 Issue 8, December 1997 (1997-12-01) 13 New supported font encodings . . . . . . . . . . 13 New input encodings . . . . . . . . . . . . . . . 13 Tools . . . . . . . . . . . . . . . . . . . . . . . . 13 Graphics . . . . . . . . . . . . . . . . . . . . . . 13 L A TEX3 experimental programming conventions 13 Issue 9, June 1998 (1998-06-01) 14 New math font encodings . . . . . . . . . . . . 14 A new math accent . . . . . . . . . . . . . . . . 14 Extended \DeclareMathDelimiter . . . . . . . 14 Tools distribution . . . . . . . . . . . . . . . . . 14 Support for Cyrillic encodings . . . . . . . . . . 14 Default docstrip header . . . . . . . . . . . . . 14 Issue 10, December 1998 (1998-12-01) 15 L ATEX News Issue 40, November 2024 (L A TEX release 2024-11-01) Contents Thirty years of L A TEX 2Á 104 News from the “L A TEX Tagged PDF” project 105 Engine support: An important update . . . . . 105 Tagging support for external packages . . . . . 105 Improved table tagging . . . . . . . . . . . . . 105 Automatic MathML tagging . . . . . . . . . . . 105 Change behavior of tagging sockets with two arguments . . . . . . . . . . . . . . . . . . 106 Changes to the L A TEX kernel 106 Handling paragraph continuation . . . . . . . . 106 Avoid bogus “no item” error . . . . . . . . . . . 106 Switch to T1 as default encoding in documents using \DocumentMetadata . . 106 Code improvements 106 Avoiding key–value option clashes between classes and packages . . . . . . . . . . . . 106 Improvement to X E TEX \showhyphens . . . . . 107 Improved error raised by empty hook . . . . . . 107 Provide counter representations for link targets 107 Extending \refstepcounter . . . . . . . . . . 107 Bug fixes 107 Fix wrong file type in a rollback warning . . . . 107 Handling of global keys with spaces . . . . . . . 107 File list entries for rolled back packages/classes 107 doc: \PrintDescribeMacro in preamble . . . . 107 Avoid low-level error if \ShowHooks is used late 108 Thirty years of L A TEX2Á In summer 1994, i.e., thirty years ago, L A TEX2Á saw its first public release. Back then it was meant to be an intermediate version (hence the ‘) on the way to a major new version (the mythical L A TEX3) that we expected to take a couple of more years to reach maturity. It took much more than that in the end—nominally, L A TEX2Á is still with us today. However, under the hood, L A TEX2Á changed a lot throughout these thirty years, as one can see, for example, when looking through the forty newsletters [2] that accompanied the L A TEX releases that happened in the meantime. During the first two decades, the L A TEX kernel was kept largely stable with only minimal bug fix activities. During that period additional functionality was mostly provided through new or extended packages that could be loaded in the document preamble. This included many of the ideas targeted for L A TEX3, e.g., expl3 (L A TEX3 programming language), xparse (new document command interface), xtemplate (a configuration mechanism), and many others. Initially, this approach worked well and provided good backward compatibility; however, over time it became apparent that keeping all developments confined to packages was more and more problematical. Features or bug fixes that should have been generally available, i.e., part of the kernel, were only available in packages, so a lot of dependencies between packages were introduced and resulted in convoluted code that was di cult to manage. For example, hyperref had to rewrite a lot of 3 / 19
4. L ATEX News ࣼΊಡΈ ׆ൃʹͳͬͨL A TEX։ൃ L A TEX News Ͱͷใࠂྔ͸׆ಈྔͱ૬ؔ͢ΔͱԾఆ ▶ 2018 ೥ࠒΛڥʹɺL A TEX ։ൃ͸׆ൃԽ ॳظ͔ΒҰ؏ͯ͠ 1–2 ϖʔδ ɹ ɹ ࠷ۙ͸ 6 ϖʔδ௒΋ L A TEX News ͷϖʔδ਺ͷਪҠ 1 (1994/06) 2 (1994/12) 3 (1995/06) 4 (1995/12) 5 (1996/06) 6 (1996/12) 7 (1997/06) 8 (1997/12) 9 (1998/06) 10 (1998/12) 11 (1999/06) 12 (1999/12) 13 (2000/06) 14 (2001/06) 15 (2003/12) 16 (2003/12) 17 (2005/12) 18 (2007/12) 19 (2009/09) 20 (2011/06) 21 (2014/05) 22 (2015/01) 23 (2015/10) 24 (2016/02) 25 (2016/03) 26 (2017/01) 27 (2017/04) 28 (2018/04) 29 (2018/12) 30 (2019/10) 31 (2020/02) 32 (2020/10) 33 (2021/06) 34 (2021/11) 35 (2022/06) 36 (2022/11) 37 (2023/06) 38 (2023/11) 39 (2024/06) 40 (2024/11) Issue # of Pages 1 2 3 4 5 6 7 8 4 / 19
5. L ATEX News ࣼΊಡΈ ੵۃతͳL A TEX։ൃ࠶։ͷഎܠ ύοέʔδʹΑΔ֦ுΞϓϩʔνͷݶք L A TEX Χʔωϧౚ݁ʹΑΔฐ֐͕֦େ L A TEX3 ϓϩάϥϛϯάϨΠϠͷ੒ख़ େن໛ͳ৽ػೳ։ൃͷͨΊͷπʔϧΛೖख λά෇͖ PDF ϓϩδΣΫτ ΞΫηγϏϦςΟ޲্ͷࣾձతཁ੥ 5 / 19
6. L ATEX News ࣼΊಡΈ എܠɹ ɹ ύοέʔδʹΑΔ֦ுΞϓϩʔν L A TEX 2𝜺 ϦϦʔε౰ॳͷҙਤ ▶ L A TEX 2.09 ޙɺ࣍ͷϝδϟʔΞοϓσʔτ·Ͱͷͭͳ͗ ɹ ɹ ਺೥Ͱ L A TEX3 ͕׬੒༧ఆͩͬͨɻ͔ͩΒЏ ▶ Χʔωϧ͸֦ுͤͣʮόάमਖ਼ͷΈʯͷํ਑Λ࠾༻ ɹ ɹ ֦ு͸ύοέʔδఏڙ ʹ ڧݻͳޙํޓ׵ੑͷҡ࣋ ɹ ɹ L A TEX3 తΞΠσΞ΋ ྫ expl3, xparse, xtemplate ໰୊ͷ஝ੵ ͜ͷΞϓϩʔν͸౰ॳ͸͏·͘ػೳ͕ͨ͠... ▶ ޿͘ར༻Մೳʹ͢΂͖ػೳɾमਖ਼͕ύοέʔδʹ஝ੵ ɹ ɹ ෳࡶͳύοέʔδؒґଘؔ܎ͷൃੜ ྫ hyperref ʹΑΔఆ্ٛॻ͖ͱଞύοέʔδʹΑΔରԠ 6 / 19
7. L ATEX News ࣼΊಡΈ എܠɹ ɹ ύοέʔδʹΑΔ֦ுΞϓϩʔνʢଓʣ ։ൃํ਑ͷస׵ 2015 ೥ࠒʹํ਑Λస׵ɺੵۃతͳΧʔωϧ։ൃΛ࠶։ ▶ latexrelease ύοέʔδͷಋೖͰޙํޓ׵ੑͷ୲อ ɹ ɹ ඞཁͳϢʔβ͸ΧʔωϧΛר͖໭ͤΔ ▶ ݱ୅ԽʹΑΓ৽نͷେن໛ͳػೳ։ൃʹணखՄೳʹ 1 (1994/06) 2 (1994/12) 3 (1995/06) 4 (1995/12) 5 (1996/06) 6 (1996/12) 7 (1997/06) 8 (1997/12) 9 (1998/06) 10 (1998/12) 11 (1999/06) 12 (1999/12) 13 (2000/06) 14 (2001/06) 15 (2003/12) 16 (2003/12) 17 (2005/12) 18 (2007/12) 19 (2009/09) 20 (2011/06) 21 (2014/05) 22 (2015/01) 23 (2015/10) 24 (2016/02) 25 (2016/03) 26 (2017/01) 27 (2017/04) 28 (2018/04) 29 (2018/12) 30 (2019/10) 31 (2020/02) 32 (2020/10) 33 (2021/06) 34 (2021/11) 35 (2022/06) 36 (2022/11) 37 (2023/06) 38 (2023/11) 39 (2024/06) 40 (2024/11) Issue # of Pages 1 2 3 4 5 6 7 8 7 / 19
8. L ATEX News ࣼΊಡΈ എܠɹ ɹ L A TEX3ϓϩάϥϛϯάϨΠϠexpl3 expl3 = L A TEX3 Programming Language† † ݩʑ͸ “experimental” ͷҙ͕ͩͬͨɺࠓ͸ҧ͏ʢΑͬͯӬٱʹ expl3ʣ ▶ L A TEX νʔϜ͕։ൃͨ͠ɺTEX ݴޠͷ୅ସݴޠ ɹ ɹ Մಡੑɾอकੑͷߴ͕͞ಛ௃ ˞ TEX ݴޠൺ ɹ ɹ Ϟδϡʔϧͱͯ͠ߴ౓ͳػೳΛఏڙ ▶ ௕Β͘։ൃதͰ͕͋ͬͨɺݴޠͱͯ͠੒ख़ ɹ ɹ 2020 ೥ 2 ݄ͷϦϦʔεͰΧʔωϧʹऔΓࠐΈ ▶ TEX Conf 2017 ͷ੿ߨԋʰexpl3 ೖ໳ʱ https://speakerdeck.com/wtsnjp/intro-expl3 8 / 19
9. L ATEX News ࣼΊಡΈ എܠɹ ɹ λά෇͖PDFϓϩδΣΫτ ϓϩδΣΫτ֓ཁ L A TEX ʹΑΔλά෇͖ PDF ग़ྗΛ໨ࢦ͢ϓϩδΣΫτ ▶ 2019 ೥ 4Q ʹ։࢝ɺݱࡏ΋ਐߦத ▶ Adobe ʹΑΔܦࡁࢧԉɺPDF Association ͱ࿈ܞ cf. PDF/UA-2, WTPDF (Well Tagged PDF) λά෇͖ PDF ͱ͸ ௨ৗͷ PDF ʹηϚϯςΟοΫͳจॻߏ଄Λλά෇͚ ɹ ɹ ҹ࡮࣌Ͱ͸ͳ͘ɺσʔλΛผ໨తͰར༻͢Δࡍʹ༗ޮ ▶ ΞΫηγϏϦςΟ ྫ Ի੠ಡΈ্͛ ▶ ଞͷจॻܗࣜ΁ͷม׵ ྫ HTML ▶ Ϧϑϩʔදࣔ ɹ ɹ L A TEX จॻιʔεͷมߋ͸࠷খͷ··ɺλά෇͚͍ͨ͠ 9 / 19
10. L ATEX News ࣼΊಡΈ എܠɹ ɹ λά෇͖PDFϓϩδΣΫτʢଓʣ ϓϩδΣΫτܭըɿ6 ͭͷϑΣʔζ Phase I ࣄલͷ४උɿ2021 ೥׬ྃ ɹ ɹ ▶ ϑοΫ؅ཧγεςϜͷಋೖʢޙड़ʣ ▶ PDF ΦϒδΣΫτͷαϙʔτ ▶ ࣗಈςετ؀ڥͷ੔උ Phase II ୯७ͳจॻ΁ͷλά෇͚ɿ2022 ೥׬ྃ ɹ ɹ ▶ ਺ࣜ΍ද૊ΈΛআ͖λά෇͚Մ Phase III/IV ֎෦ύοέʔδͷαϙʔτ౳ɿਐߦத ▶ Phase V/VI ͷλεΫ΋લ౗͠Ͱ࣮ࢪ Phase V ෳࡶͳߏ଄ʢ਺ࣜ΍ද૊Έʣͷλά෇͚ Phase VI PDF ඪ४΁ͷରԠ ˞΋ͱ΋ͱͷܭըɻ࣮ଶ͸΋͏গ͠ෳࡶ 10 / 19
11. L ATEX News ࣼΊಡΈ ৽͍͠L A TEXͷγϯλοΫε จॻϝλσʔλͷએݴ ‌ \DocumentMetadata ‌ — จॻ๯಄ͰϝλσʔλΛએݴ ɹ ɹ ৽એݴ͋Γͩͱޙํඇޓ׵ͳػೳ΋༗ޮʹ ▶ λά෇͖ PDF ͷੜ੒ ▶ σϑΥϧτͷΤϯίʔσΟϯάɿOT1 ˠ T1 ɹ ɹ L A TEX2𝜀 ʹ͓͚Δ ‌ \documentclass ‌ ಋೖʹ૬౰ ৽͍͠υΩϡϝϯτίϚϯυఆٛ xparse ࣜͷίϚϯυఆ͕ٛΧʔωϧʹಋೖ ▶ ‌ \NewDocumentCommand ‌ Λ͸͡Ίɺ৽͍͠ΠϯλʔϑΣʔε ▶ ෳࡶͳҾ਺࢓༷Λѻ͑Δڧྗͳύʔεػೳ͕ಛ௃ ▶ xparse ͷجຊࣄ߲ʹ͍ͭͯ͸ ZR ͞Μͷ Qiita Λࢀর https://qiita.com/zr_tex8r/items/50168ad7087516c3e139 11 / 19
12. L ATEX News ࣼΊಡΈ λά෇͖PDFͷੜ੒ػೳ λά෇͚ػೳͷ༗ޮԽ ‌ \DocumentMetadata ‌ Ͱ ‌ testphase ‌ ΩʔΛࢦఆ ྫ ‌ \DocumentMetadata{testphase={phase-III,math,tabular}} ‌ ‌ phase-III ‌ ͷൣғ ▶ Lamport ຊͰઆ໌͞Ε͍ͯΔ΄ͱΜͲͷίϚϯυ ▶ ༗໊ύοέʔδ ྫ amsmath, hyperref, natbib, biblatex ߴ౓ͳλά෇͚ ▶ ද૊Έ͸ ‌ \tagpdfsetup ‌ ʹΑΔ௥Ճͷ৘ใ෇༩͕ඞཁ ▶ ਺ࣜ͸ luamml ʹΑΓ MathML Λఴ෇Մ ▶ αʔυύʔςΟ੡ύοέʔδͷରԠঢ়گ https://latex3.github.io/tagging-project/tagging-status/ 12 / 19
13. L ATEX News ࣼΊಡΈ L A TEXʹಋೖ͞Εͨ৽͍֓͠೦ͱػೳᶃ ϑοΫ؅ཧγεςϜ TEX/L A TEX ͷಛఆͷಈ࡞࣌ʹ࣮ߦ͞ΕΔίʔυยͷ؅ཧ ʮಛఆͷಈ࡞ʯྫ จॻຊମ΍؀ڥͷ։࢝/ऴྃɺϖʔδग़ྗ ▶ ֎෦ύοέʔδʢetoolbox ΍ atbegshiʣ͕ఏڙ͖ͯͨ͠ػೳ ɹ ɹ ϑοΫॱংͷ؅ཧ౳ɺ౷Ұతͳѻ͍͕ࠔ೉ͱ͍͏໰୊ ▶ ౷ҰΠϯλʔϑΣʔεͰɺΧʔωϧʹऔΓࠐΈ ▶ ஈམͷ։࢝/ऴྃ࣌ϑοΫ౳ͷ৽ػೳ΋ ɹ ɹ λά෇͚ʹ׆༻͢Δͷ͕Ұ൪ͷ໨తʂ جຊతͳΠϯλʔϑΣʔε ▶ ‌ \NewHook ‌ Ͱ৽ϑοΫΛ࡞੒ɺ ‌ \UseHook ‌ ͰϑοΫ࣮ߦ ▶ ‌ \AddToHook ‌ ͰϑοΫʹίʔυยΛ௥Ճ ▶ ৄࡉ͸ ZR ͞Μͷϒϩάهࣄ΋ࢀর https://zrbabbler.hatenablog.com/entry/2020/09/26/114643 13 / 19
14. L ATEX News ࣼΊಡΈ L A TEXʹಋೖ͞Εͨ৽͍֓͠೦ͱػೳᶄ key-value ΠϯλʔϑΣʔε l3keys ૬౰ͷػೳ͕Χʔωϧʹ౷߹ ▶ ౷ҰతͰ௚ײతͳΠϯλʔϑΣʔεͷఏڙ ɹ ɹ λά෇͚จ຺Ͱ͸ඪ४ίϚϯυͷ keyval Ҿ਺͸ॏཁ ▶ ΫϥεΦϓγϣϯ΍ύοέʔδΦϓγϣϯ΋αϙʔτ ৽͍͠ϚʔΫػߏ ඇಉظʹൃੜ͢Δϖʔδߏங࣌ͷॲཧʹ৘ใΛ౉͢ ▶ ϖʔδͷϔομ/ϑολ͕యܕతͳϢʔεέʔε ▶ ैདྷͷ ‌ \markright ‌ ΍ ‌ \markboth ‌ Λஔ͖׵͑ ɹ ɹ ೚ҙݸ਺ͷ׬શʹಠཱͨ͠ϚʔΫΛαϙʔτ ▶ ৄࡉ͸ ‌ texdoc ltmarks-doc ‌ ࢀর 14 / 19
15. L ATEX News ࣼΊಡΈ L A TEXʹಋೖ͞Εͨ৽͍֓͠೦ͱػೳᶅ ιέοτɾϓϥάػߏ ίϚϯυΛύονͤͣʹಠࣗॲཧΛࠩ͠ࠐΈ ɹ ɹ ΧʔωϧΛ্ॻ͖ͤͣʹɺλά෇͚ϩδοΫΛ௥ՃՄ ▶ ϓϥάɿ໊લͷ෇͍ͨίʔυย ▶ ιέοτɿϓϥάΛૠೖ͢ΔϓϨʔεϗϧμ ▶ ৄࡉ͸ ‌ texdoc ltsockets-doc ‌ ࢀর จॻϓϩύςΟ ૬ޓࢀরػߏͷҰൠԽɻzref ༝དྷ ▶ ݱ࣌఺Ͱ͸ ‌ \label ‌ ͱ ‌ \ref ‌ ͷ࣮૷͸มߋͳ͠ ɹ ɹ কདྷ ‌ \DocumentMetadata ‌ ͋ΓͰ͸ద༻Մೳੑ͋Γ ▶ ৄࡉ͸ ‌ texdoc ltproperties-doc ‌ ࢀর 15 / 19
16. L ATEX News ࣼΊಡΈ ඇޓ׵ͳมߋͱυΩϡϝϯτͷߋ৽ ͞·͟·ͳඇޓ׵มߋ ͨ͘͞Μ͋ΔɻҎԼ͸͘͝Ұ෦ ▶ aux ϑΝΠϧॻ͖ग़͠ͷ ‌ \newlabel ‌ ͕ 5 Ҿ਺ʹ ɹ ɹ ͜Ε·Ͱͷ hyperref ಡࠐ࣌ͷڍಈͱҰக ▶ ৽͍͠ NFSSɺଟ਺ͷ৽ίϚϯυ ྫ ‌ \ShowCommand ‌ ▶ ஈམܧଓͷऔΓѻ͍͕มߋ ɹ ɹ େੲͷόά΋ੵۃमਖ਼ υΩϡϝϯτͷ࡮৽ ‌ ūƃŧŒŽ ‌ guide ͷ಺༰͕࡮৽͞Εͨ ▶ usrguide: ஶऀ޲͚ͷղઆɻxparse ࣜͷίϚϯυఆٛͳͲ ▶ clsguide: จॻΫϥε࡞ऀ޲͚ͷղઆɻusrguide++ ▶ fntguide: ৽͍͠ NFSS ͷղઆ ैདྷͷ΋ͷ͸ ‌ ūƃŧŒŽ ‌ guide-historic ͷ໊Ͱౚ݁ 16 / 19
17. L ATEX News ࣼΊಡΈ ͜Ε͔ΒͷL A TEX։ൃ ஫ҙɿαϙʔτΤϯδϯͷมߋ λά෇͚ػೳΛαϙʔτ͢ΔΤϯδϯͷݶఆΛද໌ ▶ LuaTEX ͸׬શαϙʔτɺpdfTEX ͸֓Ͷαϙʔτ ▶ X E TEX ͸αϙʔτ֎ɺpTEX ܥ͸ݴٴͳ͠ ˞΋ͪΖΜɺ֬ͨΔ͜ͱ͸Θ͔Βͳ͍... ະདྷ༧૝ ▶ λά෇͖ PDF ͷαϙʔτ͸ࠓޙ΋ଓ͘ ɹ ɹ ׆ൃͳ L A TEX ։ൃ͕ऩ·Δؾ഑͸ͳ͠ ▶ ‌ \DocumentMetadata ‌ ͋ΓͰ͸ඇޓ׵ͳมߋ͕૿͑ಘΔ ɹ ɹ ͳ͠ͷจॻ͕Ͳ͏͍͏ѻ͍ʹͳΔ͔͸ෆ໌ ▶ ੿ϒϩάͰ͸Ҿ͖ଓ͖࠷৽৘ใΛ͓ಧ͚༧ఆ https://blog.wtsnjp.com/tags/ltnews/ 17 / 19
18. L ATEX News ࣼΊಡΈ એ఻ɿ೔ຊޠ൛LearnL A TEX LearnL A TEX.org ͱ͸ L A TEX νʔϜʹΑΔ L A TEX νϡʔτϦΞϧ ▶ جຊࣄ߲ʹߜͬͯ 16 Ϩοεϯ ▶ ίʔυྫΛΦϯϥΠϯ࣮ߦՄʢOverleafɺTeXLive.netʣ ▶ ଟݴޠల։ ɹ ɹ ӳޠɺυΠπޠɺϑϥϯεޠͳͲ 10 ݴޠ ೔ຊޠ൛Λ࡞੒த ▶ εςʔλεɿӳޠ൛ͷ୯७༁͸׬੒ࡁΈ ɹ ɹ ೔ຊޠ L A TEX ࣄ৘ͷ௥ՃղઆΛ࡞੒த ▶ ίʔυྫ΋ pL A TEX + dvipdfmx Ͱ೔ຊޠԽ ▶ جຊͷจॻΫϥε͸ jlreq ɹ ɹ https://wtsnjp.github.io/learnlatex.github.io/ja/ ˞ϓϨϏϡʔ൛ɿSNS ͰόζΒͤͳ͍Ͱ΋Β͑Δͱɹ ɹ 18 / 19
19. L ATEX News ࣼΊಡΈ ࢀߟจݙ 1. L ATEX Project Team. L ATEX News, Issues 1–40 (2024). 2. L ATEX Project Team. Website of the L ATEX Project. https://latex-project.org (accessed on 2024-11-29). 3. Frank Mittelbach, Ulrike Fischer, and Chris Rowley. L ATEX Tagged PDF Feasibility Evaluation (2019). 4. Frank Mittelbach and Chris Rowley. “L ATEX Tagged PDF — A blueprint for a large project.” TUGboat 41:3, p. 292–298 (2020). 5. Frank Mittelbach and Ulrike Fischer. “The L ATEX Tagged PDF project — A status and progress report.” TUGboat 43:3, p. 268–272 (2022). 6. Frank Mittelbach and Ulrike Fischer. “L ATEX Tagged PDF project progress report for summer 2024.” TUGboat 45:2, p. 237–239 (2024). 7. Ξϯςφϋ΢εגࣜձࣾɽλά෇͖ PDF ͱ͸ͲΜͳ΋ͷɽ https://www.antenna.co.jp/pdf/reference/what-are-pdf-tags.html (2018) (accessed on 2024-11-29). 19 / 19
20. L ATEX News ࣼΊಡΈ ։ൃ൛ͷL A TEXͨͪ ։ൃதͷػೳʹ΋͍͔ͭ͘छྨ͕͋Δ latex-lab όϯυϧ ▶ L A TEX ΧʔωϧΛλʔήοτͱ͢Δ࣮ݧతίʔυ܈ ▶ ‌ \DocumentMetadata ‌ Ͱࢦఆ͢ΔϞδϡʔϧͷ࣮ମ latex-dev ϑΥʔϚοτ ▶ ࣍ظϦϦʔεͷ L A TEX ϑΥʔϚοτΛखܰʹࢼͤΔ ▶ ֤ ‌ latex ‌ ίϚϯυʹ ‌ -dev ‌ Λ෇͚Δ͚ͩ ྫ ‌ pdflatex-dev ‌ , ‌ uplatex-dev ‌ l3kernel-devɺl3backend-dev ▶ ࣍ظϦϦʔεͷ expl3 ࣮૷ ▶ ‌ -dev ‌ ෇͖ϑΥʔϚοτͰ͸ͪ͜ΒΛ૊ΈࠐΈ 20 / 19
21. L ATEX News ࣼΊಡΈ ͳͥHTMLͰ͸ͳ͘PDFʁ Mittelbach and Ulrike (2024) ͷઆ໌ʹΑΔͱ... 1. HTML ʹ΋ܽ఺͸͋Δ ▶ ݪଇͱͯ͠γϯάϧϑΝΠϧͰ͸ͳ͍ cf. CSS, JS ▶ େ఍ͷ৔߹ΦϯϥΠϯͷϦιʔεΛࢀর ɹ ɹ ূጪͱͯ͠͸εΫϦʔϯγϣοτ΍ PDF Λར༻ ▶ PDFʢಛʹ PDF/Aʣ͸ࣗݾ׬݁ɺΞʔΧΠϒ޲͖ ▶ ද͕ࣔҰ؏͠ͳ͍Մೳੑ cf. ը໘෯ 2. HTML ͷ࡞੒Λ؆୯ʹ L A TEX ˠ HTML ม׵͸͜Ε·Ͱ tex4ht ΍ L A TEXML ͕࣮ݱ ɹ ɹ ඪ४ίϚϯυΛ্ॻ͖ɻύοέʔδαϙʔτ͕େม ɹ ɹ ඪ४Ͱߏ଄λά෇͚Λαϙʔτͨ͠ํ͕ݎ࿚ͳ͘͠Έʹ 21 / 19