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Yusuke Terada, profile picture
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Development of TeXShop - The Past and the Future (TUG 2013)

1. TeXShop is a TeX editor and previewer for Mac OS X that was originally developed by Richard Koch and has since been maintained and improved upon by others. 2. TeXShop provides many features for editing documents including command completion, templates, spell checking, and support for editing Japanese documents through features like handling zenkaku space and dakuten. 3. The future of TeXShop aims to maintain its goal of having as little interface as possible to get out of the user's way and focus on their work, while continuing to support users through features like improved unicode handling.

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Development of TeXShop - The Past and the Future - Yusuke Terada Tetsuryokukai (鉄緑会)
Summary 1. The history of TeXShop! 2. TeXShop’s features provided for editing Japanese documents! 3. The future of TeXShop
What is TeXShop? • TeX editor and previewer for Mac OS X! • Open source software (GPL)! • Developed by Richard Koch
TeXShop Source Window Preview Window
Command Completion Templates AppleScript Support Macros Resume SyncTeX Matrix Input Panel Automatic Saving Versions Key Bindings Symbol Input Panel Syntax Coloring Spell Checking Unicode Normalization Multi-Display Support Split Window Place Holder Full Screen Regular Expression Show Invisible Characters Page Layout Parenthesis Matching BibTeX UTF / CID export Localizations Switching TeX Engines
History • 1985 Steve Jobs got fired from Apple and founded NeXT.! • 1989 Sep. NeXTSTEP 1.0 was released. TeXview 1.0 was released by Tom Rokicki. • 1996 Apple bought NeXT and Steve Jobs returned to Apple.! • 1999 Koch started developing TeXShop for Mac OS X beta, inspired by TeXview.
History YEAR Mac OS X Feature TeXShop 2001 10 Cheetah 1 2001 10.1 Puma 2002 10.2 Jaguar 2003 10.3 Panther 2005 10.4 Tiger PDF Kit 2 2007 10.5 Leopard 2009 10.6 Snow 2011 10.7 LeLoipoanrd Resume 3 2012 10.8 Mountain 2013 10.9 MaLvieornicks
TeXShop and Japanese Developers
Backslash - Yen Mark Problem Press Backslash Key ! on Japanese Keyboard ¥ U+00A5 U+005C (default)
Backslash - Yen Mark Problem Press Backslash Key ! on Japanese Keyboard ¥ automatically U+00A5 U+005C (default)
Japanese Collaboratoars • Mitsuhiro Shishikura! • Seiji Zenitani! • Makoto Inoue! • Yu Itoh! • Koichi Inoue! • Yoshihisa Okazaki! • Tomoaki Okayama! • Isao Sonobe
TeXShop’s Features Equipped for Editing Japanese Documents
Full-Width(ZENKAKU) Space
Full-Width(ZENKAKU) Space ➡ Successfully compiled ➡ ERROR: Undefined control sequence
Full-Width(ZENKAKU) Space ➡ Successfully compiled ➡ ERROR: Undefined control sequence Ordinary Space Zenkaku Space
Full-Width(ZENKAKU) Space Easy to distinguish
Japanese Encodings • Shift-JIS! • JIS (ISO-2022-JP)! • EUC-JP! • UTF-8! • UTF-16 etc...
Emoji (Digression) !"#$%&'()*+, -./01234✊✌78 9:;<=❌?@ABCD E⚡G⛄IJK✈MNOP
Emoji (Digression)
Circled Numbers ①②③④⑤⑥⑦⑧⑨⑩ ⑪⑫⑬⑭⑮⑯⑰⑱⑲⑳ ㉑㉒㉓㉔㉕㉖㉗㉘㉙㉚ ㉛323334353637383940 41424344454647484950
Circled Numbers ①②③④⑤⑥⑦⑧⑨⑩ ⑪⑫⑬⑭⑮⑯⑰⑱⑲⑳ Lost Shift-JIS / EUC-JP
UTF/OTF Package
UTF/OTF Package ①②③④⑤⑥⑦⑧⑨⑩⑪⑫⑬⑭⑮⑯⑰ ⑱⑲⑳㉑㉒㉓㉔㉕㉖㉗㉘㉙㉚㉛323334 35363738394041424344454647484950 Compiled
UTF/OTF Package
UTF/OTF Package ①②③④⑤⑥⑦⑧⑨⑩⑪⑫⑬⑭⑮⑯⑰ ⑱⑲⑳㉑㉒㉓㉔㉕㉖㉗㉘㉙㉚㉛323334 35363738394041424344454647484950 Compiled
UTF-Export Saved In Memory
UTF-Export
UTF-Export Loaded In Memory
Dakuten / Han-dakuten ば は ba ぱha pa
Dakuten / Han-dakuten ばDakuten は ba ぱha pa
Dakuten / Han-dakuten ばDakuten は ba ha ぱHan-Dakuten pa
Dakuten ばDakuten
Dakuten ば Dakuten 　ば(U+3070) Hiragana letter “ba”
Dakuten ば 　ば(U+3070) Hiragana letter “ba” 　は(U+306F) Hiragana letter “ha” ゛ (U+3099) Combining katakana-hiragana voiced sound mark + Dakuten
Dakuten Issue
Dakuten Issue ➡ Successfully compiled ➡ ERROR: Undefined control sequence
Dakuten Issue ➡ Successfully compiled ➡ ERROR: Undefined control sequence Copy & Paste Filename on Finder
Unicode Normalization • NFC : Normalization Form C (Composition)! • NFD : Normalization Form D 　(Decomposition)
NFD ほげ ほけ゛ ほけ゛ decomposed decomposed! (unchanged)
NFC ほげ ほけ゛ ほけ゛ ほげ decomposed composed composed
Unicode Normalization Search a filename with composed-form characters Files with decomposed-form names hit.
Lost in Normalization
My Name
My Name • English: Yusuke TERADA! • Hiragana: てらだ　ゆうすけ! • Kanji: 寺田　侑祐
My Name • English: Yusuke TERADA! • Hiragana: てらだ　ゆうすけ! • Kanji: 寺田　侑祐
Demonstration (Safari / Mail)
CJK Compatibility Ideographs
CJK Compatibility Ideographs
Lost In Normalization 祐 U+FA4F decomposed 祐 祐 U+7950 U+7950 NFC composed (!) 祐 U+FA4F 祐 U+7950 decomposed NFD (!)
Composition Exclusion Website of Unicode Consortium
Composition Exclusion
Composition Exclusion Normalize Do not! normalize Compiled as users expected
The Future of TeXShop
The Future of TeXShop “The design goal for TeXShop is simple: lots of space for the user's work, almost no space for interface and buttons. TeXShop should be in the background ready to help, but never in the way. What is important is the mathematics, physics, philosophy, economics, or history typed by the user. The highest praise is when the user didn't much notice our program.”