TUG@Bachotex 2017 Abstracts the Context Community Has the So-Called Cow- Fonts, Now Available As a Color Font

270 TUGboat, Volume 38 (2017), No. 2 TUG@BachoTEX 2017 abstracts The ConTEXt community has the so-called cow- fonts, now available as a color font. After ten years, Editor’s note: Slides and other related information the “koeiletters” font is ready for an update. The for many of the talks are posted at http://tug.org/ new version uses OpenType technology to combine tug2017. the existing four PostScript Type1 fonts into a single − − ∗ − − TrueType font. A follow up on this will be an emoji set designed TEX annoyances — what is in the way to a by Duane Bibby. Taco will convert the drawings full production environment (roughs) to proper color outline fonts, Hans will make Paulo Ney de Souza sure they work well in TEX, while the (first) subset Several minor (and annoying) issues stand in the way will be chosen by our future users: kids. of TEX to be a complete production environment. During this presentation Taco will first intro- We will go over the most important ones, discuss duce the technology (for which he will use the latest how some of them should be addressed soon, and cow fonts as an example), then Hans will quickly explore some directions on the way to solve the rest. tell a bit about how the color font technology is sup- ported in LuaTEX, and then Lorien, Teun and Lara TEX Production — ePub, the new target will challenge the audience to tell them which little Paulo Ney de Souza pictures make sense. DVI was once the output of TEX, we have since moved to PS, PDF, and now on the verge of a big change — ePub. The talk will explore how we got here and DocVar: Manage document variables what we can learn from the way the open source T X E Zunbeltz Izaola, Paulo Ney de Souza echo system works. The package docvar helps to manage DOCument VARiables. Those are pieces of information about ConTEXt: tutorial/workshop (for ConTEXt beginners) a document (mostly books) that are common to a Willi Egger collection of documents (a book series), but different in each particular case. They may be, for example, Especially since this year’s BachoT X was a joint E the title of the book, the name of the author, the event with TUG, we wanted to invite all T X users E subtitle, . This package helps to define new vari- to an introduction to ConT Xt. As with any typeset- E ables and use them. Planned features include the ting system offering possibilities to handle virtually inheritance of the value when a docvar is not defined any project, ConT Xt is a huge system. During the E and transformation of the variable value when the workshop we can only lift the veil a little bit. The docvar is used. We present the main ideas of the workshop will be a hands-on session in which we will package and its ongoing implementation. start playing with basic elements to create a document. Towards the end of the workshop, there will be a chance to work on a small project — a single- sided document containing all the elements to build TEX at secondary schools — an idea to be an invoice. I am glad to lead this workshop, and look taken up by GUST forward to meeting everyone who is interested. Anna Beata Kwiatkowska, Jerzy Ludwichowski We will present an idea floated by Anna: GUST Colorful fonts, an update and peek into the should provide on its web site a collection of TEX future helper materials that could be used at secondary Hans Hagen, Taco Hoekwater schools. Co-presenters: Lorien Otten, Lara Brandligt and Initially the site would be targeted at the pupils Teun Otten. studying at the Liceum i Gimnazium Akademickie, Kids communicate in compact language and under the care of Nicholas Copernicus University of pictures like emoticons (emoji). These pictures are Toruń, one of the best secondary schools in Poland. often also not that detailed, which suits recent studies Anna teaches there in computing and is also a staff in The Netherlands showing that drawings that kids member at the NCU’s Faculty of Mathematics and make themselves become less detailed. The Polish Computer Science. font gurus responsible for the free lm and gyre fonts We hope to spur a discussion on how to tackle never got to providing kids their beloved pictograms such a specific group. so that goal has to be achieved differently. TUG@BachoTEX 2017 abstracts TUGboat, Volume 38 (2017), No. 2 271 Automating binary building for TEX Live LATEX Restaurant Mojca Miklavec Przemysław Scherwentke TEX Live binaries are built once per year for about This is a review of the book „LATEX, książka kuchar- 20 different platforms by a number of volunteers and ska.” (“LATEX, a Cookbook.”) We show why this is never get updated during the year. This is a good a good cookbook. We look at some recipes. We compromise between users’ demand for reasonably suggest some changes in the decor. new binaries, stability and the burden on volunteer builders and packagers. Hackaton: Documenting LATEX packages The ConTEXt community on the other hand Damien Thiriet strongly depends on the availability of the latest The aim of this workshop is to revise, correct or LuaTEX binaries at any given time. There are also extend the CTAN documentation of your favoured occasional requests for the latest binaries of X TE EX LATEX package. when new features get implemented. Participants could also prepare an entry for a We have recently set up a build infrastructure LATEX package for the pakietomat.wordpress.com that can automatically build TEX binaries after every project (in Polish). We would also appreciate col- commit for a number of platforms, send emails when lective testing, improving and extending of already builds break, show reports and make the binaries existing entries. available to users. An example of a humanist scholarly book We will present our solution which gives us the Andrzej Tomaszewski freedom to run the builds much more frequently, to A long, long time ago, during a BachoTEX, throwing detect build problems earlier and to distribute newer black-and-white slides from a slide projector at the binaries to users much faster. public I presented a book which left the printing house exactly 20 years ago. In reply to BachoTEX goers’ demand I’ll again describe the design process for the scholarly edition of Ovid’s poem “Halieutica”, One rule to break them all this time using color PDFs. Mojca Miklavec, Arthur Reutenauer For almost ten years we’ve been in charge of the [ Editor’s note: We’d like to draw special attention to the slides from this talk, which include many repository of hyphenation patterns for TEX, dealing beautiful images of fonts and layouts from the book. with all technical and legal matters connected with their support by macro packages and their inclu- http://www.gust.org.pl/bachotex/2017-pl/ sion in distributions. Little consideration, however, presentations/atomaszewski-1-2017.pdf ] has been so far given to the general principles of hyphenation for the different languages that are sup- Variable and color OpenType fonts: ported, and that’s what we now would like to present, chances and challenges by finally giving the definitive answer to the great Adam Twardoch question: one rule to break them all. In March 2015, the OpenType font format specifi- cation version 1.7 was released. This was a major extension of the spec, which added support for the “MATH” table for mathematical typesetting, as well Through The Looking Glass — and what as support for three storage formats for multi-color Alice found there . glyphs: “COLR/CPAL” which combines pre-existing Frank Mittelbach monochrome outline glyphs into multi-color glyphs, Continuing the quest for automatically finding opti- “CBDT/CBLC”, which uses PNG bitmaps to store mal pagination of documents the journey takes us multi-color glyph images, and “SVG”, which stores now to the fairy land of objective functions, call- multi-color glyphs as a mixture of complex vector out constraints, layout templates and other mystical graphics (with gradients, strokes and transparencies) creatures and a Queen that cries “Faster! Faster!” as well as bitmaps. because “.. it takes all the running YOU can do, to Throughout 2016, a working group consisting keep in the same place. If you want to get somewhere of five large companies (Apple, Adobe, Google, Mi- else, you must run at least twice as fast as that!” crosoft and Monotype) and a few invited experts We will explore how fast we must run to enter (John Hudson, Erik van Blokland, Adam Twardoch) that world. worked on another major extension to the standard- ized font format: OpenType Font Variations. In TUG@BachoTEX 2017 abstracts 272 TUGboat, Volume 38 (2017), No. 2 September 2016, the results were presented at the of Products, Adam Twardoch has been managing the ATypI Warsaw conference: OpenType version 1.8 authoring and publishing of the massive technical added support for variable glyphs and metrics via the documentation that will accompany the released app. “gvar” table, backwards-compatible to the TrueType Adam has spent the last two years research- GX Variations extension which was introduced in ing various workflows that would allow the FontLab 1993 by Apple but never gained any traction, and the team to write content in a collaborative way, over- “CFF2” table, which provides a similar mechanism for see the progress of the content creation, and have PostScript-flavored fonts and replaces the previous an automated, transparent, extensible and manage- “CFF” table. The “sbix” table was also added, which able process of creating the final documentation in uses PNG bitmaps for multi-color glyphs, much like HTML and PDF formats.

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