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))))
><a href='/guix/diff/gnu/build/hurd-boot.scm?id=eb2f1a7dd94d816cfe5741f4053fc7e9d87eb8f4'>diff</a></td><td class='form'><form class='right' method='get' action='/guix/log/gnu/build/hurd-boot.scm'>
<input type='hidden' name='id' value='eb2f1a7dd94d816cfe5741f4053fc7e9d87eb8f4'/><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=eb2f1a7dd94d816cfe5741f4053fc7e9d87eb8f4'>root</a>/<a href='/guix/log/gnu?id=eb2f1a7dd94d816cfe5741f4053fc7e9d87eb8f4'>gnu</a>/<a href='/guix/log/gnu/build?id=eb2f1a7dd94d816cfe5741f4053fc7e9d87eb8f4'>build</a>/<a href='/guix/log/gnu/build/hurd-boot.scm?id=eb2f1a7dd94d816cfe5741f4053fc7e9d87eb8f4'>hurd-boot.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/gnu/build/hurd-boot.scm?id=eb2f1a7dd94d816cfe5741f4053fc7e9d87eb8f4&amp;showmsg=1'>Expand</a>)</th><th class='left'>Author</th></tr>
<tr><td><span title='2020-10-14 15:22:55 +0200'>2020-10-14</span></td><td><a href='/guix/commit/gnu/build/hurd-boot.scm?id=57a7aa1ae3ef67c6e8becca766adfb4b4c8f59ac'>hurd-boot: Set /hurd/magic on /dev/fd.</a><span class='msg-avail'>...</span></td><td>Ludovic Courtès</td></tr>
<tr><td><span title='2020-10-08 12:26:56 +0200'>2020-10-08</span></td><td><a href='/guix/commit/gnu/build/hurd-boot.scm?id=44e65a75886282a01001179e01bff2b9e957eb0a'>hurd-boot: Create /servers/crash.</a><span class='msg-avail'>...</span></td><td>Ludovic Courtès</td></tr>
<tr><td><span title='2020-06-27 13:01:40 +0200'>2020-06-27</span></td><td><a href='/guix/commit/gnu/build/hurd-boot.scm?id=65d95e5d852e47343b9acc1717918c9db7364c01'>hurd-boot: Mount /proc, add /etc/mtab.</a><span class='msg-avail'>...</span></td><td>Jan (janneke) Nieuwenhuizen</td></tr>
<tr><td><span title='2020-06-27 12:59:40 +0200'>2020-06-27</span></td><td><a href='/guix/commit/gnu/build/hurd-boot.scm?id=db08a0d2031469f63c8520ce604d2cbf2b4b980b'>hurd-boot: Remove duplicate calls to 'scope'.</a><span class='msg-avail'>...</span></td><td>Jan (janneke) Nieuwenhuizen</td></tr>
<tr><td><span title='2020-06-19 10:40:53 +0200'>2020-06-19</span></td><td><a href='/guix/commit/gnu/build/hurd-boot.scm?id=f25e8f76fec03e5a31c221e7427d6962ece1aa67'>hurd-boot: Use 'setxattr' instead of invoking settrans.</a><span class='msg-avail'>...</span></td><td>Jan (janneke) Nieuwenhuizen</td></tr>
<tr><td><span title='2020-06-19 10:38:26 +0200'>2020-06-19</span></td><td><a href='/guix/commit/gnu/build/hurd-boot.scm?id=951847ee3792f8fa57d2bd38d84d9fa9c276c0fa'>hurd-boot: Create individual translators instead of running MAKEDEV.</a><span class='msg-avail'>...</span></td><td>Jan (janneke) Nieuwenhuizen</td></tr>
<tr><td><span title='2020-06-08 14:26:14 +0200'>2020-06-08</span></td><td><a href='/guix/commit/gnu/build/hurd-boot.scm?id=68d8c094659565fe19abc1c433a17337ce5cacb7'>gnu: services: Add %hurd-startup-service.</a><span class='msg-avail'>...</span></td><td>Jan (janneke) Nieuwenhuizen</td></tr>
<tr><td><span title='2020-06-08 14:26:14 +0200'>2020-06-08</span></td><td><a href='/guix/commit/gnu/build/hurd-boot.scm?id=b37c544196898cc3dfa3da07ed344fbe11abc120'>hurd-boot: Further cleanup of "rc".</a><span class='msg-avail'>...</span></td><td>Jan (janneke) Nieuwenhuizen</td></tr>