mailing-list for TeXmacs Users

[Massimiliano Gubinelli <address@concealed>]

Hi Marc,

Thanks for trying it, and for the report!

GCC is right there: a structure in the tree-sitter code had a member
named like a type used earlier in the same structure, which C++ does not
allow. Clang accepts it, and our continuous integration built everything
with clang (configure picks it whenever it is installed), so it slipped
through. It is fixed in upsilon_texmacs, and the Linux Qt build of the CI
now uses GCC, which compiles the whole tree.

To get the fix:

  cd texmacs
  git pull
  cd src && make

(or download the sources again). If you prefer not to wait for a
rebuild, the ready-made Linux packages are at

  https://mgubi.github.io/texmacs/downloads.html

I'm curious to hear how it does with your 2000-page document,
especially the speed of typing and of loading.

Best regards,

Max

> On 19 Oct 2026, at 11:55, Marc Mertens <address@concealed> wrote:
> 
> Hi Massimilano,
> 
>  Looks great, I have a document of +/- 2000 pages (based on +/= 13
> *.tm files) which I think is a good test. I downloaded the source
> version for testing and tried to build it but got the following error:
> 
> syntax_region.o -c ./Plugins/TreeSitter/syntax_region.cpp -o
> Objects/syntax_region.o 
> ./Plugins/TreeSitter/syntax_region.cpp:110:11: error: declaration of
> ‘TSTree* syntax_region_rep::tree’ changes meaning of ‘tree’ [-
> fpermissive]
>  110 |   TSTree* tree;
>      |           ^~~~
> In file included from System/Language/code_lines.hpp:13,
>                 from ./Plugins/TreeSitter/syntax_region.cpp:11:
> Kernel/Types/tree.hpp:30:7: note: ‘tree’ declared here as ‘class tree’
>   30 | class tree {
>      |       ^~~~
> make[1]: *** [makefile:388: Objects/syntax_region.o] Error 1
> make[1]: Leaving directory
> '/home/marc/Downloads/texmacs.test/texmacs/src/src'
> make: *** [Makefile:59: TEXMACS] Error 2
> 
> Thanks a lot for your work
> 
> Best regards 
> 
> Marc Mertens
> 
> On Mon, 2026-10-19 at 09:05 +0100, Massimiliano Gubinelli wrote:
>> Hello everyone,
>> 
>> I'd like to introduce TeXmacs Upsilon, an enhanced and bleeding-edge
>> version of GNU TeXmacs with experimental features. For the past few
>> weeks I have been collecting several lines of work on TeXmacs in one
>> tree, the branch upsilon_texmacs, so that they can be built, used and
>> tested together. It is stock TeXmacs (the SVN trunk) with these
>> additions merged in. Each one is still kept as its own branch, so it
>> can be proposed upstream separately. I would be very grateful if some
>> of you could try it and tell me what breaks.
>> 
>> Inside TeXmacs, Help > TeXmacs Upsilon features gives a tour of
>> everything below, with the menus to use and links to the manual.
>> 
>> WHAT IS IN IT
>> 
>> Fixes and speed
>> 
>>   - Many bug fixes not yet upstream, for bugs reported on Savannah
>> and
>>     on GitHub: the Scheme bridge, LaTeX import/export, BibTeX, list
>>     views, editing modes, keyboard maps, Windows paths, and more.
>>   - Incremental typesetting: only the parts of a document that change
>>     are typeset again, so typing in long documents is faster. Styles
>>     and files are cached until they change on disk.
>> 
>> Fonts and mathematics
>> 
>>   - OpenType mathematics: formulas laid out from the MATH table of
>> any
>>     OpenType math font, with stretchy delimiters and accents taken
>> from
>>     the font. Text fonts get their OpenType features, and families
>> get
>>     their weights and variants (Format > Weight).
>>   - About two dozen math fonts paired with matching text fonts, most
>> of
>>     them shipped, plus a font inspector.
>>   - More fonts (DejaVu, Gentium Plus, the Antykwas, Iwona, Kurier,
>> IBM
>>     Plex weights...).
>>   - A font design page: one tab per part of a document (text,
>>     mathematics, sans serif, typewriter, blackboard bold,
>> calligraphic,
>>     fraktur) showing samples. You can apply a choice to the document
>>     and save it under a name.
>> 
>> Interfaces
>> 
>>   - Besides Qt there is a native Cocoa interface for macOS, and Vue,
>> an
>>     interface drawn entirely by TeXmacs. Both are drawn on the GPU
>>     (Metal on macOS, OpenGL elsewhere), with MuPDF as a fallback.
>>   - Light and dark themes, icon bars at the left or at the top,
>>     responsive tabs and smooth zoom.
>>   - New icon sets: neo-classical (the default), monochrome and
>> Lucide.
>> 
>> Scheme interpreters
>> 
>>   - s7 replaces Guile 1.8 by default. It needs nothing installed and
>>     starts much faster (the first window appears in about 0.7 s
>> instead
>>     of 1.9 s).
>>   - An experimental femtolisp backend: a small Scheme that works
>>     directly on TeXmacs' byte strings and caches its compiled files.
>> It
>>     boots about as fast as s7, is faster on conversions such as the
>>     LaTeX export, and works on the desktop and in the browser.
>>   - Guile is still available as a build option, and the same Scheme
>>     code serves all three.
>> 
>> Documents and references
>> 
>>   - Git integration (Version > Git): a side panel, commits, log,
>>     branches, tags, stashes, push/pull/clone, comparison with any
>>     revision, and structured three-way merges of TeXmacs documents,
>>     which also work as a git merge driver.
>>   - Zotero citations, read live from the Zotero desktop app: search,
>>     key completion, bibliography files kept in sync with Zotero, and
>>     group libraries.
>>   - CSL bibliography styles (the styles used by Zotero, Mendeley and
>>     Pandoc), processed by TeXmacs itself: csl-apa, csl-ieee,
>>     csl-chicago-... and any other .csl file you place next to the
>>     document.
>>   - New converters: Markdown import/export and Word/OpenDocument
>>     (.docx/.odt) import/export.
>> 
>> Program code
>> 
>>   - Syntax of 22 languages through tree-sitter, for source files,
>> code
>>     blocks in documents and session inputs. This gives colours,
>> folds,
>>     an outline, structural selection and moves, bracket handling,
>>     indentation and comment toggling.
>>   - A language server (LSP) client for source files, which open in
>> tabs
>>     of their own: diagnostics, completion, hover, signatures,
>>     references, renaming, quick fixes, formatting and symbols. The
>> code
>>     blocks of a document in the same language are seen by their
>> server
>>     as one file, so definitions in one block are known in the next.
>> 
>> Chatbots
>> 
>>   - AI sessions inside a document with ChatGPT, Claude, Gemini,
>>     Mistral, Ollama, OpenRouter and Albert. Answers are streamed, you
>>     can attach files to your questions, costs are shown, and API keys
>>     are kept in an encrypted wallet.
>> 
>> Documentation and tests
>> 
>>   - Developer documentation inside TeXmacs (Help > Developer
>>     documentation): about 400 pages, roughly 250 of them on the
>>     internals of the source code.
>>   - Many new tests: C++ unit tests, nearly sixty Scheme regression
>>     suites, document regressions, and a headless typesetting of the
>>     whole manual. All of them run in CI on every platform.
>> 
>> 
>> TEXMACS IN THE BROWSER
>> 
>> The same source tree also compiles to WebAssembly. You can try it
>> now,
>> with nothing to install:
>> 
>>   https://mgubi.github.io/texmacs/
>> 
>> What works in the page:
>> 
>>   - editing and typesetting, all menus and dialogs, a tab per
>> document;
>>   - files stored in the browser (upload, drag and drop, zip projects,
>>     downloads, backups) and PDF export;
>>   - the system clipboard and spell checking;
>>   - the Markdown and office converters, the font design page, and
>>     program code with tree-sitter;
>>   - plug-ins that run inside the page: Python (Pyodide), R (webR),
>> TikZ
>>     (TikZJax), Asymptote, JavaScript and the AI sessions.
>> 
>> It draws with WebGPU in Chromium-based browsers and with WebGL2
>> elsewhere. Add ?gpu=0 to the address to draw with MuPDF instead.
>> Help > TeXmacs in the browser lists what does not work yet (anything
>> that needs to run a program on your computer, such as language
>> servers
>> or Git) and the recent changes.
>> 
>> 
>> BUILDS
>> 
>> All the builds are rebuilt by the CI from the latest upsilon_texmacs
>> and published at
>> 
>>   https://github.com/mgubi/texmacs/releases/tag/upsilon-latest
>> 
>>   - macOS (Apple silicon and Intel, macOS 13 or later): two DMGs, one
>>     for Cocoa and one for Vue, plus a Qt build for Apple silicon
>> (zip).
>>     They are signed ad hoc and not notarized, so macOS refuses to
>> open
>>     them the first time. Right-click the app and choose Open, or run
>> 
>>       xattr -dr com.apple.quarantine /Applications/TeXmacs.app
>> 
>>   - Linux (built on Ubuntu 24.04, x86_64): a tarball with Qt 6 and
>> one
>>     with Vue.
>>   - Windows (x86_64): a zip with Qt 6 and one with Vue. Unpack it and
>>     run TeXmacs-Windows\bin\texmacs.exe (there is no installer).
>>   - From source: branch upsilon_texmacs of
>>     https://github.com/mgubi/texmacs
>>     Run "cd src && ./configure && make" as usual. Pick the interface
>>     with --with-gui=qt|cocoa|vue|... and the Scheme with
>>     --with-scheme=s7|femtolisp|guile. The README describes each
>> option.
>> 
>> Warning: this is work in progress. Keep backups of important
>> documents,
>> and expect rough edges, especially in the Cocoa and Vue interfaces,
>> with femtolisp, and in the browser.
>> 
>> 
>> PLEASE TEST AND REPORT
>> 
>> Any feedback is welcome, whether it is a crash, a document that
>> renders
>> differently from official TeXmacs, a missing feature in one of the
>> interfaces, or something that is simply confusing. Please open an
>> issue
>> at
>> 
>>   https://github.com/mgubi/texmacs/issues
>> 
>> or reply here. When possible, include:
>> 
>>   - which build you used (OS, interface, and for the browser the
>> commit
>>     shown in Help > TeXmacs in the browser);
>>   - the steps that trigger the problem, and a small .tm file if the
>>     problem depends on the document.
>> 
>> Thanks for trying it!
>> 
>> Max (& Claude)
>> 
>