mailing-list for TeXmacs Users

[Massimiliano Gubinelli <address@concealed>]

Hi Marc,

Thanks again. This one was a Qt 5 problem: the HTTP code was written for Qt 6 
and its Qt 5 stubs were incomplete, and our CI built only Qt 6. It is fixed 
in upsilon_texmacs, and the CI now also builds with Qt 5 and GCC on Ubuntu 
22.04, so it should not happen again. A git pull and make should now go 
through. With Qt 5, the requests to web services (the AI sessions) are not 
available; everything else is.

If you'd rather not build at all, there are now AppImages, single files that 
run on most distributions with nothing to install, and that live beside a 
stock TeXmacs without touching it:

https://github.com/mgubi/texmacs/releases/tag/upsilon-latest

(texmacs-upsilon-qt-x86_64.AppImage or texmacs-upsilon-vue-x86_64.AppImage; 
chmod +x and run.)

I'm very interested in the 2000-page test. If it's slow or misbehaves, 
sending the .tm files would help a lot.

Best regards,
Max


> On 19 Oct 2026, at 21:42, Marc Mertens <address@concealed> wrote:
> 
> Hi Massimilano,
> 
> Thanks for the quick reply. I have followed your instructions and have
> now a new set of errors
> 
> /usr/bin/ld: Objects/moc_qt_http.o: in function
> `QTMHTTPHandler::qt_metacall(QMetaObject::Call, int, void**)':
> moc_qt_http.cpp:(.text+0x1c9): undefined reference to
> `QTMHTTPHandler::onReadyRead()'
> /usr/bin/ld: Objects/moc_qt_http.o: in function
> `QTMHTTPHandler::qt_static_metacall(QObject*, QMetaObject::Call, int,
> void**)':
> moc_qt_http.cpp:(.text+0x91): undefined reference to
> `QTMHTTPHandler::onReadyRead()'
> collect2: error: ld returned 1 exit status
> make[1]: *** [makefile:533: Objects/texmacs.bin] Error 1
> make[1]: Leaving directory
> '/home/marc/Downloads/texmacs.test/texmacs/src/src'
> make: *** [Makefile:59: TEXMACS] Error 2
> 
> As soon as I manage to build texmacs I will do some performancs tests.
> Alternative I can send you my *.tm files for the document of 2000
> pages.
> 
> Thanks a lot for your work on texmacs
> 
> Best regards
> 
> 
> On Mon, 2026-10-19 at 20:07 +0200, Massimiliano Gubinelli wrote:
>> 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)
>>>> 
>>> 
>> 
>