mailing-list for TeXmacs Users

[Marc Mertens <address@concealed>]

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)
>