Replace markdown grammar with maintained version

.gitmodules

@@ -623,9 +623,6 @@
 [submodule "vendor/grammars/language-gf"]
 	path = vendor/grammars/language-gf
 	url = https://github.com/johnjcamilleri/language-gf
-[submodule "vendor/grammars/language-gfm"]
-	path = vendor/grammars/language-gfm
-	url = https://github.com/atom/language-gfm
 [submodule "vendor/grammars/language-gn"]
 	path = vendor/grammars/language-gn
 	url = https://github.com/devoncarew/language-gn
@@ -848,6 +845,9 @@
 [submodule "vendor/grammars/mako-tmbundle"]
 	path = vendor/grammars/mako-tmbundle
 	url = https://github.com/marconi/mako-tmbundle
+[submodule "vendor/grammars/markdown-tm-language"]
+	path = vendor/grammars/markdown-tm-language
+	url = https://github.com/wooorm/markdown-tm-language.git
 [submodule "vendor/grammars/marko-tmbundle"]
 	path = vendor/grammars/marko-tmbundle
 	url = https://github.com/marko-js/marko-tmbundle

grammars.yml

@@ -580,8 +580,6 @@ vendor/grammars/language-fontforge:
 - text.sfd
 vendor/grammars/language-gf:
 - source.gf
-vendor/grammars/language-gfm:
-- source.gfm
 vendor/grammars/language-gn:
 - source.gn
 vendor/grammars/language-grammars:
@@ -806,6 +804,9 @@ vendor/grammars/make.tmbundle:
 - source.makefile
 vendor/grammars/mako-tmbundle:
 - text.html.mako
+vendor/grammars/markdown-tm-language:
+- source.mdx
+- text.md
 vendor/grammars/marko-tmbundle:
 - text.marko
 vendor/grammars/mathematica-tmbundle:

lib/linguist/languages.yml

@@ -3987,7 +3987,7 @@ Markdown:
   - ".workbook"
   filenames:
   - contents.lr
-  tm_scope: source.gfm
+  tm_scope: text.md
   language_id: 222
 Marko:
   type: markup
@@ -5558,7 +5558,7 @@ RMarkdown:
   extensions:
   - ".qmd"
   - ".rmd"
-  tm_scope: source.gfm
+  tm_scope: text.md
   language_id: 313
 RPC:
   type: programming

tools/grammars/compiler/data.go

@@ -4,8 +4,8 @@ var GrammarAliases = map[string]string{
 	"source.erb":         "text.html.erb",
 	"source.cpp":         "source.c++",
 	"source.less":        "source.css.less",
-	"text.html.markdown": "source.gfm",
-	"text.md":            "source.gfm",
+	"text.html.markdown": "text.md",
+	"source.gfm":         "text.md",
 	"source.php":         "text.html.php",
 	"text.plain":         "",
 	"source.asciidoc":    "text.html.asciidoc",

vendor/README.md

@@ -318,7 +318,7 @@ This is a list of grammars that Linguist selects to provide syntax highlighting
 - **Macaulay2:** [Macaulay2/language-macaulay2](https://github.com/Macaulay2/language-macaulay2)
 - **Makefile:** [textmate/make.tmbundle](https://github.com/textmate/make.tmbundle)
 - **Mako:** [marconi/mako-tmbundle](https://github.com/marconi/mako-tmbundle)
-- **Markdown:** [atom/language-gfm](https://github.com/atom/language-gfm)
+- **Markdown:** [wooorm/markdown-tm-language](https://github.com/wooorm/markdown-tm-language)
 - **Marko:** [marko-js/marko-tmbundle](https://github.com/marko-js/marko-tmbundle)
 - **Mask:** [tenbits/sublime-mask](https://github.com/tenbits/sublime-mask)
 - **Mathematica:** [shadanan/mathematica-tmbundle](https://github.com/shadanan/mathematica-tmbundle)
@@ -439,7 +439,7 @@ This is a list of grammars that Linguist selects to provide syntax highlighting
 - **RDoc:** [joshaven/RDoc.tmbundle](https://github.com/joshaven/RDoc.tmbundle)
 - **REALbasic:** [peters-ben-0007/VBDotNetSyntax](https://github.com/peters-ben-0007/VBDotNetSyntax)
 - **REXX:** [mblocker/rexx-sublime](https://github.com/mblocker/rexx-sublime)
-- **RMarkdown:** [atom/language-gfm](https://github.com/atom/language-gfm)
+- **RMarkdown:** [wooorm/markdown-tm-language](https://github.com/wooorm/markdown-tm-language)
 - **RPC:** [textmate/c.tmbundle](https://github.com/textmate/c.tmbundle)
 - **RPGLE:** [barrettotte/vscode-ibmi-languages](https://github.com/barrettotte/vscode-ibmi-languages)
 - **RPM Spec:** [waveclaw/language-rpm-spec](https://github.com/waveclaw/language-rpm-spec)

vendor/licenses/git_submodule/markdown-tm-language.dep.yml

@@ -0,0 +1,57 @@
+---
+name: markdown-tm-language
+version: 9776f2e73a3c1dac6a70c36255417a0edb388d31
+type: git_submodule
+homepage: https://github.com/wooorm/markdown-tm-language.git
+license: mit
+licenses:
+- sources: license
+  text: |
+    (The MIT License)
+
+    Copyright (c) 2023 Titus Wormer <tituswormer@gmail.com>
+
+    Permission is hereby granted, free of charge, to any person obtaining
+    a copy of this software and associated documentation files (the
+    'Software'), to deal in the Software without restriction, including
+    without limitation the rights to use, copy, modify, merge, publish,
+    distribute, sublicense, and/or sell copies of the Software, and to
+    permit persons to whom the Software is furnished to do so, subject to
+    the following conditions:
+
+    The above copyright notice and this permission notice shall be
+    included in all copies or substantial portions of the Software.
+
+    THE SOFTWARE IS PROVIDED 'AS IS', WITHOUT WARRANTY OF ANY KIND,
+    EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+    MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
+    IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY
+    CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
+    TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
+    SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+- sources: readme.md
+  text: |-
+    [MIT][license] © [Titus Wormer][author]
+
+    <!-- Definitions -->
+
+    [build-badge]: https://github.com/wooorm/markdown-tm-language/workflows/main/badge.svg
+
+    [build]: https://github.com/wooorm/markdown-tm-language/actions
+
+    [license]: license
+
+    [author]: https://wooorm.com
+
+    [contribute]: https://opensource.guide/how-to-contribute/
+
+    [markdown]: https://commonmark.org
+
+    [mdx]: https://mdxjs.com
+
+    [demo]: https://wooorm.com/markdown-tm-language/
+
+    [starry-night]: https://github.com/wooorm/starry-night
+
+    [shiki]: https://github.com/shikijs/shiki
+notices: []