From: John MacFarlane <jgm@berkeley.edu>
Date: Tue, 12 May 2020 13:51:48 -0700
Subject: Use latest skylighting.

This adds `aria-hidden="true"` to the empty a elements, which
helps people who use screen readers.

Origin: https://github.com/jgm/pandoc/commit/8d0c124e5f76af6aa08acf9b0c526822f65e232b
Origin: https://github.com/jgm/pandoc/commit/112e98def6baf3433e99fbaa3e7280cad16f5422
---
 pandoc.cabal           | 4 ++--
 stack.yaml             | 4 ++--
 test/command/5627.md   | 8 ++++----
 test/command/5650.md   | 8 ++++----
 test/lhs-test.html     | 6 +++---
 test/lhs-test.html+lhs | 6 +++---
 6 files changed, 18 insertions(+), 18 deletions(-)

diff --git a/pandoc.cabal b/pandoc.cabal
index f6c03a0..a8b9f8e 100644
--- a/pandoc.cabal
+++ b/pandoc.cabal
@@ -404,8 +404,8 @@ library
                  tagsoup >= 0.14.6 && < 0.15,
                  base64-bytestring >= 0.1 && < 1.1,
                  zlib >= 0.5 && < 0.7,
-                 skylighting >= 0.8.3.2 && < 0.9,
-                 skylighting-core >= 0.8.3.2 && < 0.9,
+                 skylighting >= 0.8.5 && < 0.9,
+                 skylighting-core >= 0.8.5 && < 0.9,
                  data-default >= 0.4 && < 0.8,
                  temporary >= 1.1 && < 1.4,
                  blaze-html >= 0.9 && < 0.10,
diff --git a/stack.yaml b/stack.yaml
index b56beb7..92a80f7 100644
--- a/stack.yaml
+++ b/stack.yaml
@@ -15,8 +15,8 @@ extra-deps:
 - pandoc-types-1.20
 - texmath-0.12.0.1
 - haddock-library-1.8.0
-- skylighting-0.8.3.2
-- skylighting-core-0.8.3.2
+- skylighting-0.8.5
+- skylighting-core-0.8.5
 - regex-pcre-builtin-0.95.0.8.8.35
 - doclayout-0.3
 - emojis-0.1
diff --git a/test/command/5627.md b/test/command/5627.md
index 0f67a08..41fec00 100644
--- a/test/command/5627.md
+++ b/test/command/5627.md
@@ -20,8 +20,8 @@ Something
 <li>Two <code>--&gt;something&lt;!--</code></li>
 <li>Three</li>
 </ol>
-<div class="sourceCode" id="cb1"><pre class="sourceCode html"><code class="sourceCode html"><span id="cb1-1"><a href="#cb1-1"></a>--&gt;<span class="co">&lt;!--&lt;script&gt;alert(&#39;Escaped!&#39;)&lt;/script&gt;</span></span></code></pre></div>
-<div class="sourceCode" id="cb2"><pre class="sourceCode html"><code class="sourceCode html"><span id="cb2-1"><a href="#cb2-1"></a>Something</span></code></pre></div>
+<div class="sourceCode" id="cb1"><pre class="sourceCode html"><code class="sourceCode html"><span id="cb1-1"><a href="#cb1-1" aria-hidden="true"></a>--&gt;<span class="co">&lt;!--&lt;script&gt;alert(&#39;Escaped!&#39;)&lt;/script&gt;</span></span></code></pre></div>
+<div class="sourceCode" id="cb2"><pre class="sourceCode html"><code class="sourceCode html"><span id="cb2-1"><a href="#cb2-1" aria-hidden="true"></a>Something</span></code></pre></div>
 ```
 
 ```
@@ -46,8 +46,8 @@ Something
 <li><code>--&gt;something&lt;!--</code></li>
 <li>bye <code>--&gt;something else&lt;!--</code></li>
 </ul>
-<div class="sourceCode" id="cb1"><pre class="sourceCode html"><code class="sourceCode html"><span id="cb1-1"><a href="#cb1-1"></a>--&gt;<span class="co">&lt;!--&lt;script&gt;alert(&#39;Escaped!&#39;)&lt;/script&gt;</span></span></code></pre></div>
-<div class="sourceCode" id="cb2"><pre class="sourceCode html"><code class="sourceCode html"><span id="cb2-1"><a href="#cb2-1"></a>Something</span></code></pre></div>
+<div class="sourceCode" id="cb1"><pre class="sourceCode html"><code class="sourceCode html"><span id="cb1-1"><a href="#cb1-1" aria-hidden="true"></a>--&gt;<span class="co">&lt;!--&lt;script&gt;alert(&#39;Escaped!&#39;)&lt;/script&gt;</span></span></code></pre></div>
+<div class="sourceCode" id="cb2"><pre class="sourceCode html"><code class="sourceCode html"><span id="cb2-1"><a href="#cb2-1" aria-hidden="true"></a>Something</span></code></pre></div>
 ```
 
 ```
diff --git a/test/command/5650.md b/test/command/5650.md
index 0618f41..2f36c60 100644
--- a/test/command/5650.md
+++ b/test/command/5650.md
@@ -5,8 +5,8 @@ a
 b
 ```
 ^D
-<div class="sourceCode" id="foocb1"><pre class="sourceCode haskell"><code class="sourceCode haskell"><span id="foocb1-1"><a href="#foocb1-1"></a>a</span>
-<span id="foocb1-2"><a href="#foocb1-2"></a>b</span></code></pre></div>
+<div class="sourceCode" id="foocb1"><pre class="sourceCode haskell"><code class="sourceCode haskell"><span id="foocb1-1"><a href="#foocb1-1" aria-hidden="true"></a>a</span>
+<span id="foocb1-2"><a href="#foocb1-2" aria-hidden="true"></a>b</span></code></pre></div>
 ````
 
 ````
@@ -16,7 +16,7 @@ a
 b
 ```
 ^D
-<div class="sourceCode" id="foobar"><pre class="sourceCode haskell"><code class="sourceCode haskell"><span id="foobar-1"><a href="#foobar-1"></a>a</span>
-<span id="foobar-2"><a href="#foobar-2"></a>b</span></code></pre></div>
+<div class="sourceCode" id="foobar"><pre class="sourceCode haskell"><code class="sourceCode haskell"><span id="foobar-1"><a href="#foobar-1" aria-hidden="true"></a>a</span>
+<span id="foobar-2"><a href="#foobar-2" aria-hidden="true"></a>b</span></code></pre></div>
 ````
 
diff --git a/test/lhs-test.html b/test/lhs-test.html
index 6bde36c..43ff13e 100644
--- a/test/lhs-test.html
+++ b/test/lhs-test.html
@@ -80,9 +80,9 @@
 <h1 id="lhs-test">lhs test</h1>
 <p><code>unsplit</code> is an arrow that takes a pair of values and combines them to
 return a single value:</p>
-<div class="sourceCode" id="cb1"><pre class="sourceCode haskell literate"><code class="sourceCode haskell"><span id="cb1-1"><a href="#cb1-1"></a><span class="ot">unsplit ::</span> (<span class="dt">Arrow</span> a) <span class="ot">=&gt;</span> (b <span class="ot">-&gt;</span> c <span class="ot">-&gt;</span> d) <span class="ot">-&gt;</span> a (b, c) d</span>
-<span id="cb1-2"><a href="#cb1-2"></a>unsplit <span class="ot">=</span> arr <span class="op">.</span> <span class="fu">uncurry</span></span>
-<span id="cb1-3"><a href="#cb1-3"></a>          <span class="co">-- arr (\op (x,y) -&gt; x `op` y)</span></span></code></pre></div>
+<div class="sourceCode" id="cb1"><pre class="sourceCode haskell literate"><code class="sourceCode haskell"><span id="cb1-1"><a href="#cb1-1" aria-hidden="true"></a><span class="ot">unsplit ::</span> (<span class="dt">Arrow</span> a) <span class="ot">=&gt;</span> (b <span class="ot">-&gt;</span> c <span class="ot">-&gt;</span> d) <span class="ot">-&gt;</span> a (b, c) d</span>
+<span id="cb1-2"><a href="#cb1-2" aria-hidden="true"></a>unsplit <span class="ot">=</span> arr <span class="op">.</span> <span class="fu">uncurry</span></span>
+<span id="cb1-3"><a href="#cb1-3" aria-hidden="true"></a>          <span class="co">-- arr (\op (x,y) -&gt; x `op` y)</span></span></code></pre></div>
 <p><code>(***)</code> combines two arrows into a new arrow by running the two arrows on a
 pair of values (one arrow on the first item of the pair and one arrow on the
 second item of the pair).</p>
diff --git a/test/lhs-test.html+lhs b/test/lhs-test.html+lhs
index e86bfd6..8cdf3f2 100644
--- a/test/lhs-test.html+lhs
+++ b/test/lhs-test.html+lhs
@@ -80,9 +80,9 @@
 <h1 id="lhs-test">lhs test</h1>
 <p><code>unsplit</code> is an arrow that takes a pair of values and combines them to
 return a single value:</p>
-<div class="sourceCode" id="cb1"><pre class="sourceCode literatehaskell literate"><code class="sourceCode literatehaskell"><span id="cb1-1"><a href="#cb1-1"></a><span class="ot">&gt; unsplit ::</span> (<span class="dt">Arrow</span> a) <span class="ot">=&gt;</span> (b <span class="ot">-&gt;</span> c <span class="ot">-&gt;</span> d) <span class="ot">-&gt;</span> a (b, c) d</span>
-<span id="cb1-2"><a href="#cb1-2"></a><span class="ot">&gt;</span> unsplit <span class="ot">=</span> arr <span class="op">.</span> <span class="fu">uncurry</span></span>
-<span id="cb1-3"><a href="#cb1-3"></a><span class="ot">&gt;</span>           <span class="co">-- arr (\op (x,y) -&gt; x `op` y)</span></span></code></pre></div>
+<div class="sourceCode" id="cb1"><pre class="sourceCode literatehaskell literate"><code class="sourceCode literatehaskell"><span id="cb1-1"><a href="#cb1-1" aria-hidden="true"></a><span class="ot">&gt; unsplit ::</span> (<span class="dt">Arrow</span> a) <span class="ot">=&gt;</span> (b <span class="ot">-&gt;</span> c <span class="ot">-&gt;</span> d) <span class="ot">-&gt;</span> a (b, c) d</span>
+<span id="cb1-2"><a href="#cb1-2" aria-hidden="true"></a><span class="ot">&gt;</span> unsplit <span class="ot">=</span> arr <span class="op">.</span> <span class="fu">uncurry</span></span>
+<span id="cb1-3"><a href="#cb1-3" aria-hidden="true"></a><span class="ot">&gt;</span>           <span class="co">-- arr (\op (x,y) -&gt; x `op` y)</span></span></code></pre></div>
 <p><code>(***)</code> combines two arrows into a new arrow by running the two arrows on a
 pair of values (one arrow on the first item of the pair and one arrow on the
 second item of the pair).</p>
