Copyright © 2017 Oleg Pykhalov <go.wigust@gmail.com>
Copyright © 2017 Ludovic Courtès <ludo@gnu.org>

This patch adds highlighting for (guix) G-Expressions.

diff --git a/highlight-stages.el b/highlight-stages.el
index 3094c3c..e11260e 100644
--- a/highlight-stages.el
+++ b/highlight-stages.el
@@ -237,14 +237,14 @@ non-nil, (match-string 0) must be the expression matched."
 
 (defun highlight-stages-lisp-quote-matcher (&optional limit)
   (when (highlight-stages--search-forward-regexp
-         "\\(?:`\\|\\(#?'\\)\\)\\|([\s\t\n]*\\(?:backquote\\|\\(quote\\)\\)[\s\t\n]+" limit)
+         "\\(?:`\\|\\(#?'\\)\\)\\|([\s\t\n]*\\(?:backquote\\|\\(quote\\)\\)[\s\t\n]+\\|\\(?:#~\\)\\|([\s\t\n]*\\(?:gexp\\)[\s\t\n]+" limit)
     (prog1 (if (or (match-beginning 1) (match-beginning 2)) 'real t)
       (set-match-data
        (list (point)
              (progn (ignore-errors (forward-sexp 1)) (point)))))))
 
 (defun highlight-stages-lisp-escape-matcher (&optional limit)
-  (when (highlight-stages--search-forward-regexp ",@?\\|([\s\t\n]*\\\\,@?+[\s\t\n]+" limit)
+  (when (highlight-stages--search-forward-regexp ",@?\\|([\s\t\n]*\\\\,@?+[\s\t\n]+\\|\\(unquote\\)\\|\\(unquote-splicing\\)\\|\\(ungexp-native\\)\\|\\(ungexp-splicing\\)\\|\\(ungexp-native-splicing\\)\\|\\(ungexp\\)\\|#\\$" limit)
     (set-match-data
      (list (point)
            (progn (ignore-errors (forward-sexp 1)) (point))))
92b94b'>commit</a><a href='/guix/diff/tests/elm.scm?id=cfbddc3d54852d218a9e00a605e8e67bd992b94b'>diff</a></td><td class='form'><form class='right' method='get' action='/guix/log/tests/elm.scm'>
<input type='hidden' name='id' value='cfbddc3d54852d218a9e00a605e8e67bd992b94b'/><input type='hidden' name='showmsg' value='1'/><select name='qt'>
<option value='grep'>log msg</option>
<option value='author'>author</option>
<option value='committer'>committer</option>
<option value='range'>range</option>
</select>
<input class='txt' type='search' size='10' name='q' value=''/>
<input type='submit' value='search'/>
</form>
</td></tr></table>
<div class='path'>path: <a href='/guix/log/?id=cfbddc3d54852d218a9e00a605e8e67bd992b94b&amp;showmsg=1'>root</a>/<a href='/guix/log/tests?id=cfbddc3d54852d218a9e00a605e8e67bd992b94b&amp;showmsg=1'>tests</a>/<a href='/guix/log/tests/elm.scm?id=cfbddc3d54852d218a9e00a605e8e67bd992b94b&amp;showmsg=1'>elm.scm</a></div><div class='content'><table class='list nowrap'><tr class='nohover'><th class='left'>Age</th><th class='left'>Commit message (<a href='/guix/log/tests/elm.scm?id=cfbddc3d54852d218a9e00a605e8e67bd992b94b'>Collapse</a>)</th><th class='left'>Author</th></tr>
<tr class='logheader'><td><span title='2022-05-22 01:07:52 +0200'>2022-05-22</span></td><td class='logsubject'><a href='/guix/commit/tests/elm.scm?id=903c82583e1cec4c9ff09d5895c5cc646c37b661'>import: Add Elm importer.</a></td><td>Philip McGrath</td></tr>
<tr class='nohover-highlight'><td/><td colspan='3' class='logmsg'>
* guix/import/elm.scm, guix/scripts/import/elm.scm: New files.
* Makefile.am (MODULES): Add them.
* guix/scripts/import.scm (importers): Add "elm".
* doc/guix.texi (Invoking guix import): Document Elm importer.
* doc/contributing.texi (Elm Packages): Mention it.
* tests/elm.scm ("(guix import elm)"): New test group.

Signed-off-by: Ludovic Courtès &lt;ludo@gnu.org&gt;


</td></tr>
<tr class='logheader'><td><span title='2022-05-22 01:07:51 +0200'>2022-05-22</span></td><td class='logsubject'><a href='/guix/commit/tests/elm.scm?id=aefcfdd0ae2aa41adb3d1106752b6a291ef1d80f'>guix: Add elm-build-system.</a></td><td>Philip McGrath</td></tr>
<tr class='nohover-highlight'><td/><td colspan='3' class='logmsg'>
* gnu/packages/patches/elm-offline-package-registry.patch: New file.
* gnu/local.mk (dist_patch_DATA): Add it.
* gnu/packages/elm.scm (elm): Use it.
* guix/build-system/elm.scm, guix/build/elm-build-system.scm,
tests/elm.scm: New files.
* Makefile.scm (MODULES, SCM_TESTS): Add them.
* doc/guix.texi (Build Systems): Document 'elm-build-system'.
* doc/contributing.texi (Elm Packages): New section. Document naming
conventions and utilities.

Signed-off-by: Ludovic Courtès &lt;ludo@gnu.org&gt;


</td></tr>