gnu: Add js-mathjax-4.

* gnu/packages/patches/mathjax-4.0.0-disable-webpack.patch,
gnu/packages/patches/mathjax-4.0.0-no-a11y.patch: New files.
* gnu/local.mk (dist_patch_DATA): Record them.
* gnu/packages/javascript.scm (js-mathjax-4): New variable.
(js-mathjax-for-r-mathjaxr): Define as alias for js-mathjax-4.

Change-Id: I156605a8d11d615489d8f0c0c267c96339afc3c7

4 files changed, 653 insertions, 31 deletions

diff --git a/gnu/local.mk b/gnu/local.mk
index 4fd3861c10e..15c582d4d1d 100644
--- a/gnu/local.mk
+++ b/gnu/local.mk
@@ -7,7 +7,7 @@
 # Copyright © 2016, 2017, 2018 Kei Kebreau <kkebreau@posteo.net>
 # Copyright © 2016, 2017 Rene Saavedra <rennes@openmailbox.org>
 # Copyright © 2016 Adonay "adfeno" Felipe Nogueira <https://libreplanet.org/wiki/User:Adfeno> <adfeno@openmailbox.org>
-# Copyright © 2016-2025 Ricardo Wurmus <rekado@elephly.net>
+# Copyright © 2016-2026 Ricardo Wurmus <rekado@elephly.net>
 # Copyright © 2016 Ben Woodcroft <donttrustben@gmail.com>
 # Copyright © 2016, 2017, 2018, 2019 Alex Vong <alexvong1995@gmail.com>
 # Copyright © 2016-2023 Efraim Flashner <efraim@flashner.co.il>
@@ -1879,6 +1879,8 @@ dist_patch_DATA =						\
   %D%/packages/patches/mathjax-disable-webpack.patch			\
   %D%/packages/patches/mathjax-no-a11y.patch			\
   %D%/packages/patches/mathjax-3.1.2-no-a11y.patch		\
+  %D%/packages/patches/mathjax-4.0.0-disable-webpack.patch	\
+  %D%/packages/patches/mathjax-4.0.0-no-a11y.patch		\
   %D%/packages/patches/maxima-defsystem-mkdir.patch		\
   %D%/packages/patches/maven-generate-component-xml.patch		\
   %D%/packages/patches/maven-generate-javax-inject-named.patch		\
diff --git a/gnu/packages/javascript.scm b/gnu/packages/javascript.scm
index e89cdf855e3..bd6d2a0a62b 100644
--- a/gnu/packages/javascript.scm
+++ b/gnu/packages/javascript.scm
@@ -1,6 +1,6 @@
 ;;; GNU Guix --- Functional package management for GNU
 ;;; Copyright © 2017 Arun Isaac <arunisaac@systemreboot.net>
-;;; Copyright © 2017, 2019, 2020, 2022, 2023 Ricardo Wurmus <rekado@elephly.net>
+;;; Copyright © 2017, 2019, 2020, 2022, 2023, 2026 Ricardo Wurmus <rekado@elephly.net>
 ;;; Copyright © 2017, 2018, 2020, 2021 Tobias Geerinckx-Rice <me@tobias.gr>
 ;;; Copyright © 2017-2020, 2022-2024 Efraim Flashner <efraim@flashner.co.il>
 ;;; Copyright © 2018 Nicolas Goaziou <mail@nicolasgoaziou.fr>
@@ -316,11 +316,10 @@ be able to view it naturally and easily.")))
     (description (package-description js-mathjax))
     (license license:asl2.0)))
 
-(define-public js-mathjax-for-r-mathjaxr
+(define-public js-mathjax-4
   (package
-    (inherit js-mathjax-3)
     (name "js-mathjax")
-    (version "3.1.2")
+    (version "4.0.0")
     (source
      (origin
        (method git-fetch)
@@ -330,39 +329,136 @@ be able to view it naturally and easily.")))
        (file-name (git-file-name name version))
        (sha256
         (base32
-         "0kqcb6pl0zfs4hf8zqb4l50kkfq7isv35vpy05m0lg0yr9w0w4ai"))
-       (patches (search-patches "mathjax-disable-webpack.patch"
-                                "mathjax-3.1.2-no-a11y.patch"))))
+         "1ak864p80bvsvmz5fb41snrb165zs5miy54h08lld005ph8pqgk0"))
+       (patches (search-patches "mathjax-4.0.0-disable-webpack.patch"
+                                "mathjax-4.0.0-no-a11y.patch"))))
+    (build-system gnu-build-system)
     (arguments
-     (substitute-keyword-arguments (package-arguments js-mathjax-3)
-       ((#:phases phases '%standard-phases)
-        `(modify-phases ,phases
-           (replace 'prepare-sources
-             (lambda* (#:key inputs #:allow-other-keys)
-               ;; All a11y components depend on speech-rule-engine, which cannot be
-               ;; built from source. Since this only affects accessibility, remove them.
-               (delete-file-recursively "ts/a11y")
-               (delete-file-recursively "components/src/a11y")
-               (delete-file-recursively "components/src/sre")
-               (delete-file-recursively "components/src/node-main")
+     (list
+      #:phases
+      #~(modify-phases %standard-phases
+          (add-after 'unpack 'prepare-sources
+            (lambda* (#:key inputs #:allow-other-keys)
+              ;; All a11y components depend on speech-rule-engine, which cannot be
+              ;; built from source. Since this only affects accessibility, remove them.
+              (delete-file-recursively "ts/a11y/")
+              (delete-file-recursively "components/mjs/a11y")
+              (delete-file-recursively "components/mjs/sre")
+              (delete-file-recursively "components/mjs/node-main")
 
-               ;; Copy sources of dependencies, so we can create symlinks.
-               (mkdir-p "node_modules")
-               (with-directory-excursion "node_modules"
-                 (for-each
-                  (lambda (p)
-                    (copy-recursively (assoc-ref inputs (string-append "node-" p)) p))
-                  '("mj-context-menu")))
+              ;; Copy sources of dependencies, so we can create symlinks.
+              (mkdir-p "node_modules")
+              (let ((components (string-append (getcwd) "/components"))
+                    (subdir "mathjax-newcm-font"))
+                (with-directory-excursion "node_modules"
+                  (for-each
+                   (lambda (p)
+                     (copy-recursively (assoc-ref inputs (string-append "node-" p)) p))
+                   '("mj-context-menu" "mhchemparser")))
 
-               ;; Make sure esbuild can find imports. This way we don’t have to rewrite files.
-               (symlink "ts" "js")
-               (symlink "ts" "node_modules/mj-context-menu/js")))))))
+                ;; Unpack font files.
+                (mkdir-p subdir)
+                (invoke "tar" "-xf" (assoc-ref inputs "node-mathjax-newcm-font")
+                        "-C" subdir
+                        "--strip-components=1")
+                (substitute* (find-files subdir "\\.js$")
+                  (("@mathjax/src/mjs/output/chtml/")
+                   (string-append components "/mjs/output/chtml/lib/output/chtml/"))
+                  (("@mathjax/src/mjs/output/svg/")
+                   (string-append components "/mjs/output/svg/lib/output/svg/"))
+                  (("@mathjax/src/mjs/output/common/")
+                   (string-append components "/mjs/output/chtml/lib/output/common/"))
+                  (("@mathjax/src/components/")
+                   (string-append components "/"))
+                  (("@mathjax/src/mjs/util/Options.js")
+                   (string-append components "/mjs/core/lib/util/Options.js")))
+                (rename-file (string-append subdir "/mjs") "components/mjs/font"))
+
+              ;; Make sure esbuild can find imports. This way we don’t have to rewrite files.
+              (symlink "ts" "js")
+              (symlink "ts" "mjs")
+              (symlink "ts" "node_modules/mj-context-menu/js")
+              (substitute* "package.json"
+                (("@mathjax/src/") "./js/")
+                (("@mathjax/mathjax-newcm-font/mjs/") "./components/mjs/font/"))))
+          (delete 'configure)
+          (replace 'build
+            (lambda* (#:key inputs outputs #:allow-other-keys)
+              (let ((esbuild (string-append (assoc-ref inputs "esbuild")
+                                            "/bin/esbuild"))
+                    (node (string-append (assoc-ref inputs "node")
+                                         "/bin/node"))
+                    (npm (string-append (assoc-ref inputs "node")
+                                         "/bin/npm"))
+                    (target (string-append #$output
+                                           "/share/javascript/mathjax")))
+                ;; Prepare fonts.
+                (invoke node "components/bin/makeAll" "--mjs" "components/mjs/font")
+                ;; Preprocess files and generate lib/ subdirs.
+                (invoke node "components/bin/makeAll" "--mjs" "components/mjs")
+                ;; Build components.
+                (apply
+                 invoke
+                 esbuild
+                 "--bundle"
+                 "--minify"
+                 ;; esbuild cannot transpile some features to ES5, so use ES6 instead.
+                 "--target=es6"
+                 (string-append "--outdir=" target)
+                 "--sourcemap"
+                 "--outbase=components/mjs"
+                 "--define:__dirname=\"/\""
+                 ;; In the browser the global object is window, see
+                 ;; https://developer.mozilla.org/en-US/docs/Glossary/Global_object
+                 "--define:global=window"
+                 ;; Find all component entry points, which have the same name as their
+                 ;; parent directory.
+                 (filter
+                  (lambda (f)
+                    (string=?
+                     (basename (dirname f))
+                     (string-drop-right (basename f) 3)))
+                  (find-files "components/mjs" "\\.js$")))
+                ;; Move all .js files into their parent directory, where MathJax
+                ;; expects them.
+                (for-each
+                 (lambda (f)
+                   (rename-file f (string-append (dirname (dirname f)) "/" (basename f))))
+                 (find-files target "\\.js(\\.map)?$"))
+
+                ;; Copy font files.  These files contain character tables,
+                ;; which is why they are so large.  The tools to generate
+                ;; these tables has not been released yet, so we install them
+                ;; as opaque data instead of building them from font
+                ;; definition files.
+                (install-file
+                 "mathjax-newcm-font/chtml.js"
+                 (string-append target "/font/"))
+                (install-file
+                 "mathjax-newcm-font/tex-mml-chtml-mathjax-newcm.js"
+                 (string-append target "/font/"))
+                (copy-recursively
+                 "mathjax-newcm-font/chtml/woff2"
+                 (string-append target "/font/chtml/woff2")))))
+          (delete 'check)
+          (delete 'install))))
     (native-inputs
      `(("esbuild" ,esbuild)
        ("node" ,node-lts)
+       ;; There is no public source code repository for this component.  See
+       ;; <https://github.com/mathjax/MathJax-src/issues/973>.
+       ("node-mathjax-newcm-font"
+        ,(origin
+           (method url-fetch)
+           (uri (string-append "https://registry.npmjs.org/@mathjax/"
+                               "mathjax-newcm-font/-/mathjax-newcm-font-"
+                               version ".tgz"))
+           (sha256
+            (base32
+             "0cklfhl2n5zy20cnik1ww068rk91bsvllx8bnrjhjbk1sz7yw63q"))))
        ("node-mj-context-menu"
         ,(let ((name "context-menu")
-               (version "0.6.1"))
+               (version "0.9.1"))
            (origin
              (method git-fetch)
              (uri (git-reference
@@ -371,7 +467,27 @@ be able to view it naturally and easily.")))
              (file-name (git-file-name name version))
              (sha256
               (base32
-               "1q063l6477z285j6h5wvccp6iswvlp0jmb96sgk32sh0lf7nhknh")))))))))
+               "03wdf8v99sxr91h4b21gaggf32h5l0h2jk0yw3wm6f6r1ildxdap")))))
+       ("node-mhchemparser"
+        ,(let ((name "mhchemparser")
+               ;; Version 4.2.1. There are no tags.
+               (commit "2159346e2bb45ec6beaf64b617e0e5a049b4d200")
+               (revision "0"))
+           (origin
+             (method git-fetch)
+             (uri (git-reference
+                    (url "https://github.com/mhchem/mhchemParser.git")
+                    (commit commit)))
+             (file-name (git-file-name name (git-version "4.2.1" revision commit)))
+             (sha256
+              (base32
+               "1xzzfrk5bl5cby77qm0bdsmzjmfxxzjrzdh0cw5f811r78js0cib")))))))
+    (home-page "https://www.mathjax.org/")
+    (synopsis (package-synopsis js-mathjax))
+    (description (package-description js-mathjax))
+    (license license:asl2.0)))
+
+(define-public js-mathjax-for-r-mathjaxr js-mathjax-4)
 
 (define-public js-commander
   (package
diff --git a/gnu/packages/patches/mathjax-4.0.0-disable-webpack.patch b/gnu/packages/patches/mathjax-4.0.0-disable-webpack.patch
new file mode 100644
index 00000000000..8bec8806749
--- /dev/null
+++ b/gnu/packages/patches/mathjax-4.0.0-disable-webpack.patch
@@ -0,0 +1,15 @@
+Guix uses esbuild to “link” the files. We only need the build step.
+
+diff --git a/components/bin/makeAll b/components/bin/makeAll
+--- a/components/bin/makeAll
++++ b/components/bin/makeAll
+@@ -154,7 +154,7 @@
+     const fulldir = path.resolve(root, dir);
+     const config = getConfig(fulldir);
+     processDir(fulldir, buildLib, config);
+-    processDir(fulldir, copyLib, config);
+-    processDir(fulldir, webpackLib, config);
++    //processDir(fulldir, copyLib, config);
++    //processDir(fulldir, webpackLib, config);
+   }
+ }
diff --git a/gnu/packages/patches/mathjax-4.0.0-no-a11y.patch b/gnu/packages/patches/mathjax-4.0.0-no-a11y.patch
new file mode 100644
index 00000000000..d22f538ba4c
--- /dev/null
+++ b/gnu/packages/patches/mathjax-4.0.0-no-a11y.patch
@@ -0,0 +1,489 @@
+diff -ur a/components/mjs/a11y/explorer/config.json b/components/mjs/a11y/explorer/config.json
+--- a/components/mjs/a11y/explorer/config.json	1970-01-01 01:00:01.000000000 +0100
++++ b/components/mjs/a11y/explorer/config.json	2026-01-26 09:55:11.623580625 +0100
+@@ -7,8 +7,6 @@
+     "name": "a11y/explorer",
+     "libs": [
+       "components/src/a11y/semantic-enrich/lib",
+-      "components/src/a11y/speech/lib",
+-      "components/src/a11y/sre/lib",
+       "components/src/input/mml/lib",
+       "components/src/core/lib"
+     ]
+diff -ur a/components/mjs/a11y/semantic-enrich/config.json b/components/mjs/a11y/semantic-enrich/config.json
+--- a/components/mjs/a11y/semantic-enrich/config.json	1970-01-01 01:00:01.000000000 +0100
++++ b/components/mjs/a11y/semantic-enrich/config.json	2026-01-26 09:54:51.467512431 +0100
+@@ -10,7 +10,6 @@
+     "libs": [
+       "components/src/input/mml/lib",
+       "components/src/core/lib",
+-      "components/src/a11y/sre/lib",
+       "components/src/loader/lib"
+     ]
+   }
+diff -ur a/components/mjs/a11y/util.js b/components/mjs/a11y/util.js
+--- a/components/mjs/a11y/util.js	1970-01-01 01:00:01.000000000 +0100
++++ b/components/mjs/a11y/util.js	2026-01-26 11:27:00.259216414 +0100
+@@ -1,13 +1,7 @@
+ import {Loader} from '#js/components/loader.js';
+ import '../input/mml/init.js';
+-import './sre/sre.js';
+ import './semantic-enrich/semantic-enrich.js';
+-import './speech/speech.js';
+-import './explorer/explorer.js';
+ 
+ Loader.preLoaded(
+-  'a11y/sre',
+   'a11y/semantic-enrich',
+-  'a11y/speech',
+-  'a11y/explorer'
+ );
+diff -ur a/components/mjs/dependencies.js b/components/mjs/dependencies.js
+--- a/components/mjs/dependencies.js	1970-01-01 01:00:01.000000000 +0100
++++ b/components/mjs/dependencies.js	2026-01-26 11:27:31.211335738 +0100
+@@ -16,10 +16,8 @@
+  */
+ 
+ export const dependencies = {
+-  'a11y/semantic-enrich': ['input/mml', 'a11y/sre'],
+-  'a11y/speech': ['a11y/semantic-enrich'],
++  'a11y/semantic-enrich': ['input/mml'],
+   'a11y/complexity': ['a11y/semantic-enrich'],
+-  'a11y/explorer': ['a11y/speech'],
+   '[mml]/mml3': ['input/mml'],
+   '[tex]/action': ['input/tex-base'],
+   '[tex]/ams': ['input/tex-base', '[tex]/newcommand'],
+@@ -61,7 +59,6 @@
+   '[tex]/units': ['input/tex-base'],
+   '[tex]/upgreek': ['input/tex-base'],
+   '[tex]/verb': ['input/tex-base'],
+-  'ui/menu': ['a11y/sre'],
+ };
+ 
+ export const paths = {
+diff -ur a/components/mjs/mml-chtml/mml-chtml.js b/components/mjs/mml-chtml/mml-chtml.js
+--- a/components/mjs/mml-chtml/mml-chtml.js	1970-01-01 01:00:01.000000000 +0100
++++ b/components/mjs/mml-chtml/mml-chtml.js	2026-01-26 09:51:40.893614207 +0100
+@@ -4,7 +4,6 @@
+ import '../input/mml/mml.js';
+ import {loadFont} from '../output/chtml/chtml.js';
+ import '../ui/menu/menu.js';
+-import '../a11y/util.js';
+ 
+ Loader.preLoaded(
+   'loader', 'startup',
+diff -ur a/components/mjs/mml-chtml-nofont/mml-chtml-nofont.js b/components/mjs/mml-chtml-nofont/mml-chtml-nofont.js
+--- a/components/mjs/mml-chtml-nofont/mml-chtml-nofont.js	1970-01-01 01:00:01.000000000 +0100
++++ b/components/mjs/mml-chtml-nofont/mml-chtml-nofont.js	2026-01-26 09:53:38.319264663 +0100
+@@ -4,7 +4,6 @@
+ import '../input/mml/mml.js';
+ import {loadFont} from '../output/chtml/chtml.js';
+ import '../ui/menu/menu.js';
+-import '../a11y/util.js';
+ 
+ Loader.preLoaded(
+   'loader', 'startup',
+diff -ur a/components/mjs/mml-svg/mml-svg.js b/components/mjs/mml-svg/mml-svg.js
+--- a/components/mjs/mml-svg/mml-svg.js	1970-01-01 01:00:01.000000000 +0100
++++ b/components/mjs/mml-svg/mml-svg.js	2026-01-26 09:55:49.927710134 +0100
+@@ -4,7 +4,6 @@
+ import '../input/mml/mml.js';
+ import {loadFont} from '../output/svg/svg.js';
+ import '../ui/menu/menu.js';
+-import '../a11y/util.js';
+ 
+ Loader.preLoaded(
+   'loader', 'startup',
+diff -ur a/components/mjs/mml-svg-nofont/mml-svg-nofont.js b/components/mjs/mml-svg-nofont/mml-svg-nofont.js
+--- a/components/mjs/mml-svg-nofont/mml-svg-nofont.js	1970-01-01 01:00:01.000000000 +0100
++++ b/components/mjs/mml-svg-nofont/mml-svg-nofont.js	2026-01-26 09:53:45.819290087 +0100
+@@ -4,7 +4,6 @@
+ import '../input/mml/mml.js';
+ import {loadFont} from '../output/svg/svg.js';
+ import '../ui/menu/menu.js';
+-import '../a11y/util.js';
+ 
+ Loader.preLoaded(
+   'loader', 'startup',
+diff -ur a/components/mjs/source.js b/components/mjs/source.js
+--- a/components/mjs/source.js	1970-01-01 01:00:01.000000000 +0100
++++ b/components/mjs/source.js	2026-01-26 11:28:05.171466461 +0100
+@@ -73,11 +73,7 @@
+   'output/svg': `${src}/output/svg/svg.js`,
+   'a11y/assistive-mml': `${src}/a11y/assistive-mml/assistive-mml.js`,
+   'a11y/semantic-enrich': `${src}/a11y/semantic-enrich/semantic-enrich.js`,
+-  'a11y/speech': `${src}/a11y/speech/speech.js`,
+   'a11y/complexity': `${src}/a11y/complexity/complexity.js`,
+-  'a11y/explorer': `${src}/a11y/explorer/explorer.js`,
+-  'a11y/sre': `${src}/a11y/sre/sre.js`,
+-  '[mathmaps]': `${src}/../../bundle/sre/mathmaps`,
+   'ui/lazy': `${src}/ui/lazy/lazy.js`,
+   'ui/menu': `${src}/ui/menu/menu.js`,
+   'ui/safe': `${src}/ui/safe/safe.js`,
+diff -ur a/components/mjs/tex-chtml/tex-chtml.js b/components/mjs/tex-chtml/tex-chtml.js
+--- a/components/mjs/tex-chtml/tex-chtml.js	1970-01-01 01:00:01.000000000 +0100
++++ b/components/mjs/tex-chtml/tex-chtml.js	2026-01-26 09:53:41.947276962 +0100
+@@ -4,7 +4,6 @@
+ import '../input/tex/tex.js';
+ import {loadFont} from '../output/chtml/chtml.js';
+ import '../ui/menu/menu.js';
+-import '../a11y/util.js';
+ 
+ Loader.preLoaded(
+   'loader', 'startup',
+diff -ur a/components/mjs/tex-chtml-nofont/tex-chtml-nofont.js b/components/mjs/tex-chtml-nofont/tex-chtml-nofont.js
+--- a/components/mjs/tex-chtml-nofont/tex-chtml-nofont.js	1970-01-01 01:00:01.000000000 +0100
++++ b/components/mjs/tex-chtml-nofont/tex-chtml-nofont.js	2026-01-26 09:51:32.803991787 +0100
+@@ -4,7 +4,6 @@
+ import '../input/tex/tex.js';
+ import {loadFont} from '../output/chtml/chtml.js';
+ import '../ui/menu/menu.js';
+-import '../a11y/util.js';
+ 
+ Loader.preLoaded(
+   'core',
+diff -ur a/components/mjs/tex-mml-chtml/tex-mml-chtml.js b/components/mjs/tex-mml-chtml/tex-mml-chtml.js
+--- a/components/mjs/tex-mml-chtml/tex-mml-chtml.js	1970-01-01 01:00:01.000000000 +0100
++++ b/components/mjs/tex-mml-chtml/tex-mml-chtml.js	2026-01-26 09:53:30.887239463 +0100
+@@ -5,7 +5,6 @@
+ import '../input/mml/mml.js';
+ import {loadFont} from '../output/chtml/chtml.js';
+ import '../ui/menu/menu.js';
+-import '../a11y/util.js';
+ 
+ Loader.preLoaded(
+   'loader', 'startup',
+diff -ur a/components/mjs/tex-mml-chtml-nofont/tex-mml-chtml-nofont.js b/components/mjs/tex-mml-chtml-nofont/tex-mml-chtml-nofont.js
+--- a/components/mjs/tex-mml-chtml-nofont/tex-mml-chtml-nofont.js	1970-01-01 01:00:01.000000000 +0100
++++ b/components/mjs/tex-mml-chtml-nofont/tex-mml-chtml-nofont.js	2026-01-26 09:51:22.243799809 +0100
+@@ -5,7 +5,6 @@
+ import '../input/mml/mml.js';
+ import {loadFont} from '../output/chtml/chtml.js';
+ import '../ui/menu/menu.js';
+-import '../a11y/util.js';
+ 
+ Loader.preLoaded(
+   'loader', 'startup',
+diff -ur a/components/mjs/tex-mml-svg/tex-mml-svg.js b/components/mjs/tex-mml-svg/tex-mml-svg.js
+--- a/components/mjs/tex-mml-svg/tex-mml-svg.js	1970-01-01 01:00:01.000000000 +0100
++++ b/components/mjs/tex-mml-svg/tex-mml-svg.js	2026-01-26 09:51:14.670501005 +0100
+@@ -5,7 +5,6 @@
+ import '../input/mml/mml.js';
+ import {loadFont} from '../output/svg/svg.js';
+ import '../ui/menu/menu.js';
+-import '../a11y/util.js';
+ 
+ Loader.preLoaded(
+   'loader', 'startup',
+diff -ur a/components/mjs/tex-mml-svg-nofont/tex-mml-svg-nofont.js b/components/mjs/tex-mml-svg-nofont/tex-mml-svg-nofont.js
+--- a/components/mjs/tex-mml-svg-nofont/tex-mml-svg-nofont.js	1970-01-01 01:00:01.000000000 +0100
++++ b/components/mjs/tex-mml-svg-nofont/tex-mml-svg-nofont.js	2026-01-26 09:53:34.387251331 +0100
+@@ -5,7 +5,6 @@
+ import '../input/mml/mml.js';
+ import {loadFont} from '../output/svg/svg.js';
+ import '../ui/menu/menu.js';
+-import '../a11y/util.js';
+ 
+ Loader.preLoaded(
+   'loader', 'startup',
+diff -ur a/components/mjs/tex-svg/tex-svg.js b/components/mjs/tex-svg/tex-svg.js
+--- a/components/mjs/tex-svg/tex-svg.js	1970-01-01 01:00:01.000000000 +0100
++++ b/components/mjs/tex-svg/tex-svg.js	2026-01-26 09:53:26.683225207 +0100
+@@ -4,7 +4,6 @@
+ import '../input/tex/tex.js';
+ import {loadFont} from '../output/svg/svg.js';
+ import '../ui/menu/menu.js';
+-import '../a11y/util.js';
+ 
+ Loader.preLoaded(
+   'loader', 'startup',
+diff -ur a/components/mjs/tex-svg-nofont/tex-svg-nofont.js b/components/mjs/tex-svg-nofont/tex-svg-nofont.js
+--- a/components/mjs/tex-svg-nofont/tex-svg-nofont.js	1970-01-01 01:00:01.000000000 +0100
++++ b/components/mjs/tex-svg-nofont/tex-svg-nofont.js	2026-01-26 09:55:54.519725652 +0100
+@@ -4,7 +4,6 @@
+ import '../input/tex/tex.js';
+ import {loadFont} from '../output/svg/svg.js';
+ import '../ui/menu/menu.js';
+-import '../a11y/util.js';
+ 
+ Loader.preLoaded(
+   'core',
+diff -ur a/components/mjs/ui/menu/config.json b/components/mjs/ui/menu/config.json
+--- a/components/mjs/ui/menu/config.json	1970-01-01 01:00:01.000000000 +0100
++++ b/components/mjs/ui/menu/config.json	2026-01-26 09:52:50.136135319 +0100
+@@ -1,14 +1,13 @@
+ {
+   "build": {
+     "component": "ui/menu",
+-    "targets": ["ui/menu", "a11y/speech/SpeechMenu.ts"],
++    "targets": ["ui/menu"],
+     "excludeSubdirs": true
+   },
+   "webpack": {
+     "name": "ui/menu",
+     "libs": [
+       "components/src/core/lib",
+-      "components/src/a11y/sre/lib",
+       "node_modules/mj-context-menu/js"
+     ]
+   }
+diff -ur a/ts/a11y/explorer.ts b/ts/a11y/explorer.ts
+--- a/ts/a11y/explorer.ts	1970-01-01 01:00:01.000000000 +0100
++++ b/ts/a11y/explorer.ts	2026-01-26 11:23:15.894346209 +0100
+@@ -25,7 +25,6 @@
+ import { MmlNode } from '../core/MmlTree/MmlNode.js';
+ import { MathML } from '../input/mathml.js';
+ import { STATE, newState } from '../core/MathItem.js';
+-import { SpeechMathItem, SpeechMathDocument, SpeechHandler } from './speech.js';
+ import { MathDocumentConstructor } from '../core/MathDocument.js';
+ import { OptionList, expandable } from '../util/Options.js';
+ import { SerializedMmlVisitor } from '../core/MmlTree/SerializedMmlVisitor.js';
+@@ -35,8 +34,6 @@
+ 
+ import { ExplorerPool, RegionPool } from './explorer/ExplorerPool.js';
+ 
+-import * as Sre from './sre.js';
+-
+ const isUnix = context.os === 'Unix';
+ 
+ /**
+@@ -167,26 +164,16 @@
+      * @override
+      */
+     public attachSpeech(document: ExplorerMathDocument) {
+-      super.attachSpeech(document);
+-      this.outputData.speechPromise
+-        ?.then(() => this.explorers.speech.attachSpeech())
+-        ?.then(() => {
+-          if (this.explorers?.speech) {
+-            this.explorers.speech.restarted = this.refocus;
+-          }
+-          this.refocus = null;
+-          if (this.explorers) {
+-            this.explorers.restart();
+-          }
+-        });
++      console.log("ignoring attachSpeech: speech is disabled");
++      return;
+     }
+ 
+     /**
+      * @override
+      */
+     public detachSpeech(document: ExplorerMathDocument) {
+-      super.detachSpeech(document);
+-      this.explorers.speech.detachSpeech();
++      console.log("ignoring detachSpeech: speech is disabled");
++      return;
+     }
+ 
+     /**
+@@ -243,7 +230,7 @@
+     public setTemporaryFocus(document: ExplorerMathDocument): HTMLElement {
+       let focus = null;
+       if (this.explorers) {
+-        const speech = this.explorers.speech;
++        const speech = null;
+         focus = speech?.attached ? document.tmpFocus : null;
+         if (focus) {
+           this.refocus = speech.semanticFocus() ?? null;
+@@ -325,10 +312,6 @@
+         ...BaseDocument.OPTIONS.renderActions,
+         explorable: [STATE.EXPLORER]
+       }),
+-      sre: expandable({
+-        ...BaseDocument.OPTIONS.sre,
+-        speech: 'none',                    // None as speech is explicitly computed
+-      }),
+       a11y: {
+         ...BaseDocument.OPTIONS.a11y,
+         align: 'top',                      // placement of magnified expression
+@@ -527,9 +510,6 @@
+       const visitor = new SerializedMmlVisitor(this.mmlFactory);
+       const toMathML = (node: MmlNode) => visitor.visitTree(node);
+       const options = this.options;
+-      if (!options.a11y.speechRules) {
+-        options.a11y.speechRules = `${options.sre.domain}-${options.sre.style}`;
+-      }
+       const mathItem = (options.MathItem = ExplorerMathItemMixin(
+         options.MathItem,
+         toMathML
+@@ -653,12 +633,9 @@
+ ) {
+   // TODO (volker): This needs to be replace by the engine feature vector.
+   // Minus rule sets etc. Breaking change in SRE.
+-  const sreOptions = Sre.engineSetup() as { [name: string]: string };
+   for (const key in options) {
+     if (document.options.a11y[key] !== undefined) {
+       setA11yOption(document, key, options[key]);
+-    } else if (sreOptions[key] !== undefined) {
+-      document.options.sre[key] = options[key];
+     }
+   }
+   if (options.roleDescription) {
+@@ -684,9 +661,6 @@
+ ) {
+   switch (option) {
+     case 'speechRules': {
+-      const [domain, style] = (value as string).split('-');
+-      document.options.sre.domain = domain;
+-      document.options.sre.style = style;
+       break;
+     }
+     case 'magnification':
+@@ -728,7 +702,6 @@
+       }
+       break;
+     case 'locale':
+-      document.options.sre.locale = value;
+       break;
+     default:
+       document.options.a11y[option] = value;
+diff -ur a/ts/ui/menu/MenuHandler.ts b/ts/ui/menu/MenuHandler.ts
+--- a/ts/ui/menu/MenuHandler.ts	1970-01-01 01:00:01.000000000 +0100
++++ b/ts/ui/menu/MenuHandler.ts	2026-01-26 11:40:15.606237915 +0100
+@@ -24,21 +24,11 @@
+ import { mathjax } from '../../mathjax.js';
+ 
+ import { STATE, newState } from '../../core/MathItem.js';
+-import { MathDocumentConstructor } from '../../core/MathDocument.js';
++import { MathDocument, MathDocumentConstructor } from '../../core/MathDocument.js';
+ import { Handler } from '../../core/Handler.js';
+-import {
+-  ComplexityMathDocument,
+-  ComplexityMathItem,
+-} from '../../a11y/complexity.js';
+-import {
+-  AssistiveMmlMathDocument,
+-  AssistiveMmlMathItem,
+-} from '../../a11y/assistive-mml.js';
+-import { SpeechMathDocument } from '../../a11y/speech.js';
+ import { expandable } from '../../util/Options.js';
+ 
+ import { Menu } from './Menu.js';
+-import '../../a11y/speech/SpeechMenu.js';
+ 
+ /*==========================================================================*/
+ 
+@@ -50,8 +40,7 @@
+ /**
+  * Generic A11Y MathItem type
+  */
+-export type A11yMathItem = ComplexityMathItem<HTMLElement, Text, Document> &
+-  AssistiveMmlMathItem<HTMLElement, Text, Document>;
++export type A11yMathItem = MathItem<HTMLElement, Text, Document>;
+ 
+ /**
+  * Constructor for base MathItem for MenuMathItem
+@@ -63,13 +52,11 @@
+ /**
+  * Generic A11Y MathDocument type
+  */
+-export type A11yMathDocument = ComplexityMathDocument<
++export type A11yMathDocument = MathDocument<
+   HTMLElement,
+   Text,
+   Document
+-> &
+-  SpeechMathDocument<HTMLElement, Text, Document> &
+-  AssistiveMmlMathDocument<HTMLElement, Text, Document>;
++>;
+ 
+ /**
+  * Constructor for base document for MenuMathDocument
+@@ -87,7 +74,7 @@
+  * The new function for MathItem that adds the context menu
+  */
+ export interface MenuMathItem
+-  extends ComplexityMathItem<HTMLElement, Text, Document> {
++  extends MathItem<HTMLElement, Text, Document> {
+   /**
+    * @param {MenuMathDocument} document   The document where the menu is being added
+    * @param {boolean} force               True if menu should be added even if enableMenu is false
+@@ -151,8 +138,7 @@
+  * The properties needed in the MathDocument for context menus
+  */
+ export interface MenuMathDocument
+-  extends ComplexityMathDocument<HTMLElement, Text, Document>,
+-    SpeechMathDocument<HTMLElement, Text, Document> {
++  extends MathDocument<HTMLElement, Text, Document> {
+   /**
+    * The menu associated with this document
+    */
+@@ -208,7 +194,7 @@
+       MenuClass: Menu,
+       menuOptions: Menu.OPTIONS,
+       enableMenu: true,
+-      sre: BaseDocument.OPTIONS.sre || expandable({}),
++      sre: false,
+       a11y: BaseDocument.OPTIONS.a11y || expandable({}),
+       renderActions: expandable({
+         ...BaseDocument.OPTIONS.renderActions,
+@@ -249,10 +235,10 @@
+       const settings = this.menu.settings;
+       const options = this.options;
+       const enrich = (options.enableEnrichment = settings.enrich);
+-      options.enableSpeech = settings.speech && enrich;
++      options.enableSpeech = false;
+       options.enableBraille = settings.braille && enrich;
+-      options.enableComplexity = settings.collapsible && enrich;
+-      options.enableExplorer = enrich;
++      options.enableComplexity = false;
++      options.enableExplorer = false;
+     }
+ 
+     /**
+@@ -304,12 +290,6 @@
+           this.menu.loadingPromise.catch((err) => console.log(err))
+         );
+       }
+-      if (this.options.enableComplexity) {
+-        this.menu.checkComponent('a11y/complexity');
+-      }
+-      if (this.options.enableExplorer) {
+-        this.menu.checkComponent('a11y/explorer');
+-      }
+       return this;
+     }
+ 
+diff -ur a/ts/ui/menu/Menu.ts b/ts/ui/menu/Menu.ts
+--- a/ts/ui/menu/Menu.ts	1970-01-01 01:00:01.000000000 +0100
++++ b/ts/ui/menu/Menu.ts	2026-01-26 11:29:48.979864791 +0100
+@@ -149,10 +149,10 @@
+       breakInline: true,
+       autocollapse: false,
+       collapsible: false,
+-      enrich: true,
++      enrich: false,
+       inTabOrder: true,
+       assistiveMml: false,
+-      speech: true,
++      speech: false,
+       braille: true,
+       brailleCode: 'nemeth',
+       speechRules: 'clearspeak-default',
+@@ -1190,7 +1190,7 @@
+    * Enable/disable assistive menus based on enrichment setting
+    */
+   protected setAccessibilityMenus() {
+-    const enable = this.settings.enrich;
++    const enable = false;
+     const method = enable ? 'enable' : 'disable';
+     ['Speech', 'Braille', 'Explorer'].forEach((id) =>
+       this.menu.findID(id)[method]()
+@@ -1210,6 +1210,7 @@
+    * @param {boolean} speech   True to enable speech, false to not
+    */
+   protected setSpeech(speech: boolean) {
++    speech = false;
+     this.enableAccessibilityItems('Speech', speech);
+     this.document.options.enableSpeech = speech;
+     if (!speech || MathJax._?.a11y?.explorer) {
+@@ -1223,6 +1224,7 @@
+    * @param {boolean} braille   True to enable braille, false to not
+    */
+   protected setBraille(braille: boolean) {
++    braille = false;
+     this.enableAccessibilityItems('Braille', braille);
+     this.document.options.enableBraille = braille;
+     if (!braille || MathJax._?.a11y?.explorer) {