7 files changed, 30 insertions, 30 deletions
diff --git a/vhosts/blog/public/posts/2021-10-02/cpp-you-can-use-keywords-in-attributes/index.html b/vhosts/blog/public/posts/2021-10-02/cpp-you-can-use-keywords-in-attributes/index.html
index 94b9d8bc..16c466ba 100644
--- a/vhosts/blog/public/posts/2021-10-02/cpp-you-can-use-keywords-in-attributes/index.html
+++ b/vhosts/blog/public/posts/2021-10-02/cpp-you-can-use-keywords-in-attributes/index.html
@@ -73,7 +73,7 @@
           <p>
             タイトル落ち。まずはこのコードを見て欲しい。
           </p>
-          <div class="codeblock" language="cpp">
+          <div class="codeblock">
             <pre class="shiki github-light" style="background-color:#f5f5f5;color:#24292e" tabindex="0"><code><span class="line"><span style="color:#D73A49">#include</span><span style="color:#032F62"> &#x3C;iostream></span></span>
 <span class="line"></span>
 <span class="line"><span style="color:#005CC5">[[</span><span style="color:#6F42C1">alignas</span><span style="color:#005CC5">]]</span><span style="color:#005CC5"> [[</span><span style="color:#6F42C1">alignof</span><span style="color:#005CC5">]]</span><span style="color:#005CC5"> [[</span><span style="color:#6F42C1">and</span><span style="color:#005CC5">]]</span><span style="color:#005CC5"> [[</span><span style="color:#6F42C1">and_eq</span><span style="color:#005CC5">]]</span><span style="color:#005CC5"> [[</span><span style="color:#6F42C1">asm</span><span style="color:#005CC5">]]</span><span style="color:#005CC5"> [[</span><span style="color:#6F42C1">auto</span><span style="color:#005CC5">]]</span><span style="color:#005CC5"> [[</span><span style="color:#6F42C1">bitand</span><span style="color:#005CC5">]]</span></span>
@@ -138,7 +138,7 @@
           <p>
             上のコードでは <code>[[using]]</code> をコメントアウトしているが、これは <code>using</code> キーワードのみ属性構文の中で意味を持つからであり、このコメントアウトを外すとコンパイルに失敗する。
           </p>
-          <div class="codeblock" language="cpp">
+          <div class="codeblock">
             <pre class="shiki github-light" style="background-color:#f5f5f5;color:#24292e" tabindex="0"><code><span class="line"><span style="color:#6A737D">// using の例</span></span>
 <span class="line"><span style="color:#005CC5">[[</span><span style="color:#D73A49">using</span><span style="color:#6F42C1"> foo</span><span style="color:#005CC5">: </span><span style="color:#6F42C1">attr1</span><span style="color:#005CC5">, </span><span style="color:#6F42C1">attr2</span><span style="color:#005CC5">]]</span><span style="color:#D73A49"> int</span><span style="color:#24292E"> x;</span><span style="color:#6A737D"> // [[foo::attr1, foo::attr2]] の糖衣構文</span></span></code></pre>
           </div>
diff --git a/vhosts/blog/public/posts/2021-10-02/python-unbound-local-error/index.html b/vhosts/blog/public/posts/2021-10-02/python-unbound-local-error/index.html
index db2da17c..c3d48b89 100644
--- a/vhosts/blog/public/posts/2021-10-02/python-unbound-local-error/index.html
+++ b/vhosts/blog/public/posts/2021-10-02/python-unbound-local-error/index.html
@@ -76,7 +76,7 @@
           <p>
             Python でクロージャを作ろうと、次のようなコードを書いた。
           </p>
-          <div class="codeblock" language="python">
+          <div class="codeblock">
             <pre class="shiki github-light" style="background-color:#f5f5f5;color:#24292e" tabindex="0"><code><span class="line"><span style="color:#D73A49">def</span><span style="color:#6F42C1"> f</span><span style="color:#24292E">():</span></span>
 <span class="line"><span style="color:#24292E">    x </span><span style="color:#D73A49">=</span><span style="color:#005CC5"> 0</span></span>
 <span class="line"><span style="color:#D73A49">    def</span><span style="color:#6F42C1"> g</span><span style="color:#24292E">():</span></span>
@@ -96,7 +96,7 @@
           <p>
             local変数 <code>x</code> が代入前に参照された、とある。これは、<code>f</code> の <code>x</code> を参照するのではなく、新しく別の変数を <code>g</code> 内に作ってしまっているため。 前述のコードを宣言と代入を便宜上分けて書き直すと次のようになる。<code>var</code> を変数宣言のための構文として擬似的に利用している。
           </p>
-          <div class="codeblock" language="python">
+          <div class="codeblock">
             <pre class="shiki github-light" style="background-color:#f5f5f5;color:#24292e" tabindex="0"><code><span class="line"><span style="color:#6A737D"># 注: var は正しい Python の文法ではない。上記参照のこと</span></span>
 <span class="line"><span style="color:#D73A49">def</span><span style="color:#6F42C1"> f</span><span style="color:#24292E">():</span></span>
 <span class="line"><span style="color:#24292E">  var x           </span><span style="color:#6A737D">#  f の local変数 'x' を宣言</span></span>
@@ -111,7 +111,7 @@
           <p>
             当初の意図を表現するには、次のように書けばよい。
           </p>
-          <div class="codeblock" language="python">
+          <div class="codeblock">
             <pre class="shiki github-light" style="background-color:#f5f5f5;color:#24292e" tabindex="0"><code><span class="line"><span style="color:#D73A49">def</span><span style="color:#6F42C1"> f</span><span style="color:#24292E">():</span></span>
 <span class="line"><span style="color:#24292E">    x </span><span style="color:#D73A49">=</span><span style="color:#005CC5"> 0</span></span>
 <span class="line"><span style="color:#D73A49">    def</span><span style="color:#6F42C1"> g</span><span style="color:#24292E">():</span></span>
diff --git a/vhosts/blog/public/posts/2021-10-02/ruby-detect-running-implementation/index.html b/vhosts/blog/public/posts/2021-10-02/ruby-detect-running-implementation/index.html
index b4d41329..b11626c9 100644
--- a/vhosts/blog/public/posts/2021-10-02/ruby-detect-running-implementation/index.html
+++ b/vhosts/blog/public/posts/2021-10-02/ruby-detect-running-implementation/index.html
@@ -79,7 +79,7 @@
           <p>
             上記ページの例から引用する:
           </p>
-          <div class="codeblock" language="shell-session">
+          <div class="codeblock">
             <pre class="shiki github-light" style="background-color:#f5f5f5;color:#24292e" tabindex="0"><code><span class="line"><span>$ ruby-1.9.1 -ve 'p RUBY_ENGINE'</span></span>
 <span class="line"><span>ruby 1.9.1p0 (2009-03-04 revision 22762) [x86_64-linux]</span></span>
 <span class="line"><span>"ruby"</span></span>
@@ -116,7 +116,7 @@
           <p>
             <a href="https://github.com/mruby/mruby/blob/ed29d74bfd95362eaeb946fcf7e865d80346b62b/include/mruby/version.h#L32-L35" rel="noreferrer" target="_blank">mruby 該当部分のソース</a> より引用:
           </p>
-          <div class="codeblock" language="c">
+          <div class="codeblock">
             <pre class="shiki github-light" style="background-color:#f5f5f5;color:#24292e" tabindex="0"><code><span class="line"><span style="color:#6A737D">/*</span></span>
 <span class="line"><span style="color:#6A737D"> * Ruby engine.</span></span>
 <span class="line"><span style="color:#6A737D"> */</span></span>
diff --git a/vhosts/blog/public/posts/2021-10-02/ruby-then-keyword-and-case-in/index.html b/vhosts/blog/public/posts/2021-10-02/ruby-then-keyword-and-case-in/index.html
index aa5b2781..614957e4 100644
--- a/vhosts/blog/public/posts/2021-10-02/ruby-then-keyword-and-case-in/index.html
+++ b/vhosts/blog/public/posts/2021-10-02/ruby-then-keyword-and-case-in/index.html
@@ -81,7 +81,7 @@
             <p>
               使われることは稀だが、Ruby では <code>then</code> がキーワードになっている。次のように使う:
             </p>
-            <div class="codeblock" language="ruby">
+            <div class="codeblock">
               <pre class="shiki github-light" style="background-color:#f5f5f5;color:#24292e" tabindex="0"><code><span class="line"><span style="color:#D73A49">if</span><span style="color:#24292E"> cond </span><span style="color:#D73A49">then</span></span>
 <span class="line"><span style="color:#005CC5">  puts</span><span style="color:#032F62"> "Y"</span></span>
 <span class="line"><span style="color:#D73A49">else</span></span>
@@ -91,7 +91,7 @@
             <p>
               このキーワードが現れうる場所はいくつかあり、<code>if</code>、<code>unless</code>、<code>rescue</code>、<code>case</code> 構文がそれに当たる。 上記のように、何か条件を書いた後 <code>then</code> を置き、式がそこで終了していることを示すマーカーとして機能する。
             </p>
-            <div class="codeblock" language="ruby">
+            <div class="codeblock">
               <pre class="shiki github-light" style="background-color:#f5f5f5;color:#24292e" tabindex="0"><code><span class="line"><span style="color:#6A737D"># Example:</span></span>
 <span class="line"></span>
 <span class="line"><span style="color:#D73A49">if</span><span style="color:#24292E"> x </span><span style="color:#D73A49">then</span></span>
@@ -119,7 +119,7 @@
             <p>
               普通 Ruby のコードで <code>then</code> を書くことはない。なぜか。次のコードを実行してみるとわかる。
             </p>
-            <div class="codeblock" language="ruby">
+            <div class="codeblock">
               <pre class="shiki github-light" style="background-color:#f5f5f5;color:#24292e" tabindex="0"><code><span class="line"><span style="color:#D73A49">if</span><span style="color:#005CC5"> true</span><span style="color:#005CC5"> puts</span><span style="color:#032F62"> 'Hello, World!'</span><span style="color:#D73A49"> end</span></span></code></pre>
             </div>
             <p>
@@ -138,7 +138,7 @@
             <p>
               ポイントは改行が <code>then</code> (や <code>;</code>) の代わりとなることである。<code>true</code> の後に改行を入れてみる。
             </p>
-            <div class="codeblock" language="ruby">
+            <div class="codeblock">
               <pre class="shiki github-light" style="background-color:#f5f5f5;color:#24292e" tabindex="0"><code><span class="line"><span style="color:#D73A49">if</span><span style="color:#005CC5"> true</span></span>
 <span class="line"><span style="color:#005CC5">puts</span><span style="color:#032F62"> 'Hello, World!'</span><span style="color:#D73A49"> end</span></span></code></pre>
             </div>
@@ -151,19 +151,19 @@
             <p>
               なぜ <code>then</code> や <code>;</code> や改行 (以下 「<code>then</code> 等」) が必要なのだろうか。次の例を見てほしい:
             </p>
-            <div class="codeblock" language="ruby">
+            <div class="codeblock">
               <pre class="shiki github-light" style="background-color:#f5f5f5;color:#24292e" tabindex="0"><code><span class="line"><span style="color:#D73A49">if</span><span style="color:#24292E"> a b </span><span style="color:#D73A49">end</span></span></code></pre>
             </div>
             <p>
               <code>then</code> も <code>;</code> も改行もないのでエラーになるが、これは条件式がどこまで続いているのかわからないためだ。 この例は二通りに解釈できる。
             </p>
-            <div class="codeblock" language="ruby">
+            <div class="codeblock">
               <pre class="shiki github-light" style="background-color:#f5f5f5;color:#24292e" tabindex="0"><code><span class="line"><span style="color:#6A737D"># a という変数かメソッドの評価結果が truthy なら b という変数かメソッドを評価</span></span>
 <span class="line"><span style="color:#D73A49">if</span><span style="color:#24292E"> a </span><span style="color:#D73A49">then</span></span>
 <span class="line"><span style="color:#24292E">b</span></span>
 <span class="line"><span style="color:#D73A49">end</span></span></code></pre>
             </div>
-            <div class="codeblock" language="ruby">
+            <div class="codeblock">
               <pre class="shiki github-light" style="background-color:#f5f5f5;color:#24292e" tabindex="0"><code><span class="line"><span style="color:#6A737D"># a というメソッドに b という変数かメソッドの評価結果を渡して呼び出し、</span></span>
 <span class="line"><span style="color:#6A737D"># その結果が truthy なら何もしない</span></span>
 <span class="line"><span style="color:#D73A49">if</span><span style="color:#6F42C1"> a</span><span style="color:#24292E">(b) </span><span style="color:#D73A49">then</span></span>
@@ -184,7 +184,7 @@
             <p>
               <a href="https://github.com/ruby/ruby/blob/221ca0f8281d39f0dfdfe13b2448875384bbf735/parse.y#L3961-L3986" rel="noreferrer" target="_blank">https://github.com/ruby/ruby/blob/221ca0f8281d39f0dfdfe13b2448875384bbf735/parse.y#L3961-L3986</a>
             </p>
-            <div class="codeblock" language="yacc">
+            <div class="codeblock">
               <pre class="shiki github-light" style="background-color:#f5f5f5;color:#24292e" tabindex="0"><code><span class="line"><span>p_case_body : keyword_in</span></span>
 <span class="line"><span>{</span></span>
 <span class="line"><span>  SET_LEX_STATE(EXPR_BEG|EXPR_LABEL);</span></span>
@@ -215,7 +215,7 @@
             <p>
               簡略版:
             </p>
-            <div class="codeblock" language="yacc">
+            <div class="codeblock">
               <pre class="shiki github-light" style="background-color:#f5f5f5;color:#24292e" tabindex="0"><code><span class="line"><span>p_case_body : keyword_in p_top_expr then compstmt p_cases</span></span>
 <span class="line"><span>;</span></span></code></pre>
             </div>
@@ -225,7 +225,7 @@
             <p>
               これにより、<code>case</code> - <code>when</code> による従来の構文と同じように、<code>then</code> 等をパターンの後ろに挿入すればよいことがわかった。つまり次の3通りのいずれかになる:
             </p>
-            <div class="codeblock" language="ruby">
+            <div class="codeblock">
               <pre class="shiki github-light" style="background-color:#f5f5f5;color:#24292e" tabindex="0"><code><span class="line"><span style="color:#D73A49">case</span><span style="color:#24292E"> x</span></span>
 <span class="line"><span style="color:#D73A49">in</span><span style="color:#005CC5"> 1</span><span style="color:#D73A49"> then</span><span style="color:#24292E"> a</span></span>
 <span class="line"><span style="color:#D73A49">in</span><span style="color:#005CC5"> 2</span><span style="color:#D73A49"> then</span><span style="color:#24292E"> b</span></span>
@@ -250,7 +250,7 @@
             <p>
               ところで、<code>p_top_expr</code> には <code>if</code> による guard clause が書けるので、その場合は <code>if</code> - <code>then</code> と似たような見た目になる。
             </p>
-            <div class="codeblock" language="ruby">
+            <div class="codeblock">
               <pre class="shiki github-light" style="background-color:#f5f5f5;color:#24292e" tabindex="0"><code><span class="line"><span style="color:#D73A49">case</span><span style="color:#24292E"> x</span></span>
 <span class="line"><span style="color:#D73A49">in</span><span style="color:#005CC5"> 0</span><span style="color:#D73A49"> then</span><span style="color:#24292E"> a</span></span>
 <span class="line"><span style="color:#D73A49">in</span><span style="color:#24292E"> n </span><span style="color:#D73A49">if</span><span style="color:#24292E"> n </span><span style="color:#D73A49">&#x3C;</span><span style="color:#005CC5"> 0</span><span style="color:#D73A49"> then</span><span style="color:#24292E"> b</span></span>
diff --git a/vhosts/blog/public/posts/2021-10-02/rust-where-are-primitive-types-from/index.html b/vhosts/blog/public/posts/2021-10-02/rust-where-are-primitive-types-from/index.html
index d0d5156c..dffa5173 100644
--- a/vhosts/blog/public/posts/2021-10-02/rust-where-are-primitive-types-from/index.html
+++ b/vhosts/blog/public/posts/2021-10-02/rust-where-are-primitive-types-from/index.html
@@ -72,7 +72,7 @@
             <p>
               Rust において、プリミティブ型の名前は予約語でない。したがって、次のコードは合法である。
             </p>
-            <div class="codeblock" language="rust">
+            <div class="codeblock">
               <pre class="shiki github-light" style="background-color:#f5f5f5;color:#24292e" tabindex="0"><code><span class="line"><span style="color:#24292E">#![allow(non_camel_case_types)]</span></span>
 <span class="line"><span style="color:#24292E">#![allow(dead_code)]</span></span>
 <span class="line"></span>
@@ -140,7 +140,7 @@
             <p>
               <code>rustc_resolve</code> というのはいかにも名前解決を担いそうなクレート名である。該当箇所を見てみる。
             </p>
-            <div class="codeblock" language="rust">
+            <div class="codeblock">
               <pre class="shiki github-light" style="background-color:#f5f5f5;color:#24292e" tabindex="0"><code><span class="line"><span style="color:#6A737D">/// Interns the names of the primitive types.</span></span>
 <span class="line"><span style="color:#6A737D">///</span></span>
 <span class="line"><span style="color:#6A737D">/// All other types are defined somewhere and possibly imported, but the primitive ones need</span></span>
@@ -185,7 +185,7 @@
             <p>
               とある。次はこの struct の使用箇所を追う。追うと言っても使われている箇所は次の一箇所しかない。なお説明に不要な箇所は大きく削っている。
             </p>
-            <div class="codeblock" language="rust">
+            <div class="codeblock">
               <pre class="shiki github-light" style="background-color:#f5f5f5;color:#24292e" tabindex="0"><code><span class="line"><span style="color:#6A737D">/// This resolves the identifier `ident` in the namespace `ns` in the current lexical scope.</span></span>
 <span class="line"><span style="color:#6A737D">/// (略)</span></span>
 <span class="line"><span style="color:#D73A49">fn</span><span style="color:#6F42C1"> resolve_ident_in_lexical_scope</span><span style="color:#24292E">(</span></span>
@@ -220,7 +220,7 @@
             <p>
               動作がわかったところで、例として次のコードを考える。
             </p>
-            <div class="codeblock" language="rust">
+            <div class="codeblock">
               <pre class="shiki github-light" style="background-color:#f5f5f5;color:#24292e" tabindex="0"><code><span class="line"><span style="color:#24292E">#![allow(non_camel_case_types)]</span></span>
 <span class="line"></span>
 <span class="line"><span style="color:#D73A49">struct</span><span style="color:#6F42C1"> bool</span><span style="color:#24292E">;</span></span>
diff --git a/vhosts/blog/public/posts/2021-10-02/vim-difference-between-autocmd-bufwrite-and-bufwritepre/index.html b/vhosts/blog/public/posts/2021-10-02/vim-difference-between-autocmd-bufwrite-and-bufwritepre/index.html
index 3b9470bb..1d1d97fe 100644
--- a/vhosts/blog/public/posts/2021-10-02/vim-difference-between-autocmd-bufwrite-and-bufwritepre/index.html
+++ b/vhosts/blog/public/posts/2021-10-02/vim-difference-between-autocmd-bufwrite-and-bufwritepre/index.html
@@ -119,14 +119,14 @@
               <p>
                 <a href="https://github.com/vim/vim/blob/8e6be34338f13a6a625f19bcef82019c9adc65f2/src/autocmd.c#L85-L86" rel="noreferrer" target="_blank">https://github.com/vim/vim/blob/8e6be34338f13a6a625f19bcef82019c9adc65f2/src/autocmd.c#L85-L86</a>
               </p>
-              <div class="codeblock" language="c">
+              <div class="codeblock">
                 <pre class="shiki github-light" style="background-color:#f5f5f5;color:#24292e" tabindex="0"><code><span class="line"><span style="color:#24292E">{</span><span style="color:#032F62">"BufAdd"</span><span style="color:#24292E">,      EVENT_BUFADD},</span></span>
 <span class="line"><span style="color:#24292E">{</span><span style="color:#032F62">"BufCreate"</span><span style="color:#24292E">,   EVENT_BUFADD},</span></span></code></pre>
               </div>
               <p>
                 <a href="https://github.com/vim/vim/blob/8e6be34338f13a6a625f19bcef82019c9adc65f2/src/autocmd.c#L95-L97" rel="noreferrer" target="_blank">https://github.com/vim/vim/blob/8e6be34338f13a6a625f19bcef82019c9adc65f2/src/autocmd.c#L95-L97</a>
               </p>
-              <div class="codeblock" language="c">
+              <div class="codeblock">
                 <pre class="shiki github-light" style="background-color:#f5f5f5;color:#24292e" tabindex="0"><code><span class="line"><span style="color:#24292E">{</span><span style="color:#032F62">"BufRead"</span><span style="color:#24292E">,     EVENT_BUFREADPOST},</span></span>
 <span class="line"><span style="color:#24292E">{</span><span style="color:#032F62">"BufReadCmd"</span><span style="color:#24292E">,  EVENT_BUFREADCMD},</span></span>
 <span class="line"><span style="color:#24292E">{</span><span style="color:#032F62">"BufReadPost"</span><span style="color:#24292E">, EVENT_BUFREADPOST},</span></span></code></pre>
@@ -134,7 +134,7 @@
               <p>
                 <a href="https://github.com/vim/vim/blob/8e6be34338f13a6a625f19bcef82019c9adc65f2/src/autocmd.c#L103-L105" rel="noreferrer" target="_blank">https://github.com/vim/vim/blob/8e6be34338f13a6a625f19bcef82019c9adc65f2/src/autocmd.c#L103-L105</a>
               </p>
-              <div class="codeblock" language="c">
+              <div class="codeblock">
                 <pre class="shiki github-light" style="background-color:#f5f5f5;color:#24292e" tabindex="0"><code><span class="line"><span style="color:#24292E">{</span><span style="color:#032F62">"BufWrite"</span><span style="color:#24292E">,    EVENT_BUFWRITEPRE},</span></span>
 <span class="line"><span style="color:#24292E">{</span><span style="color:#032F62">"BufWritePost"</span><span style="color:#24292E">,    EVENT_BUFWRITEPOST},</span></span>
 <span class="line"><span style="color:#24292E">{</span><span style="color:#032F62">"BufWritePre"</span><span style="color:#24292E">, EVENT_BUFWRITEPRE},</span></span></code></pre>
@@ -148,7 +148,7 @@
               <p>
                 <a href="https://github.com/neovim/neovim/blob/71d4f5851f068eeb432af34850dddda8cc1c71e3/src/nvim/auevents.lua#L119-L124" rel="noreferrer" target="_blank">https://github.com/neovim/neovim/blob/71d4f5851f068eeb432af34850dddda8cc1c71e3/src/nvim/auevents.lua#L119-L124</a>
               </p>
-              <div class="codeblock" language="lua">
+              <div class="codeblock">
                 <pre class="shiki github-light" style="background-color:#f5f5f5;color:#24292e" tabindex="0"><code><span class="line"><span style="color:#24292E">aliases </span><span style="color:#D73A49">=</span><span style="color:#24292E"> {</span></span>
 <span class="line"><span style="color:#24292E">  BufCreate </span><span style="color:#D73A49">=</span><span style="color:#032F62"> 'BufAdd'</span><span style="color:#24292E">,</span></span>
 <span class="line"><span style="color:#24292E">  BufRead </span><span style="color:#D73A49">=</span><span style="color:#032F62"> 'BufReadPost'</span><span style="color:#24292E">,</span></span>
diff --git a/vhosts/blog/public/posts/2021-10-02/vim-swap-order-of-selected-lines/index.html b/vhosts/blog/public/posts/2021-10-02/vim-swap-order-of-selected-lines/index.html
index 1ccc0513..3da75e76 100644
--- a/vhosts/blog/public/posts/2021-10-02/vim-swap-order-of-selected-lines/index.html
+++ b/vhosts/blog/public/posts/2021-10-02/vim-swap-order-of-selected-lines/index.html
@@ -69,7 +69,7 @@
           </div>
           <section id="section--tl-dr">
             <h2><a href="#section--tl-dr">TL; DR</a></h2>
-            <div class="codeblock" language="vim">
+            <div class="codeblock">
               <pre class="shiki github-light" style="background-color:#f5f5f5;color:#24292e" tabindex="0"><code><span class="line"><span style="color:#6A737D">" License: Public Domain</span></span>
 <span class="line"></span>
 <span class="line"><span style="color:#D73A49">command!</span><span style="color:#24292E"> -bar -</span><span style="color:#D73A49">range=</span><span style="color:#24292E">%</span></span>
@@ -131,7 +131,7 @@
               <p>
                 なお、<code>:g/^/m0</code> は全ての行を入れ替えるが、<code>:N,Mg/^/mN-1</code> とすることで N行目から M行目を処理範囲とするよう拡張できる。手でこれを入力するわけにはいかないので、次のようなコマンドを用意する。
               </p>
-              <div class="codeblock" language="vim">
+              <div class="codeblock">
                 <pre class="shiki github-light" style="background-color:#f5f5f5;color:#24292e" tabindex="0"><code><span class="line"><span style="color:#D73A49">command!</span><span style="color:#24292E"> -bar -</span><span style="color:#D73A49">range=</span><span style="color:#24292E">%</span></span>
 <span class="line"><span style="color:#D73A49">    \</span><span style="color:#24292E"> Reverse</span></span>
 <span class="line"><span style="color:#D73A49">    \</span><span style="color:#24292E"> &#x3C;line1>,&#x3C;line2>g</span><span style="color:#032F62">/^/</span><span style="color:#24292E">m&#x3C;line1>-</span><span style="color:#005CC5">1</span></span></code></pre>
@@ -167,7 +167,7 @@
             <p>
               前述した <code>:Reverse</code> コマンドの定義を少し変えて、次のようにする:
             </p>
-            <div class="codeblock" language="vim">
+            <div class="codeblock">
               <pre class="shiki github-light" style="background-color:#f5f5f5;color:#24292e" tabindex="0"><code><span class="line"><span style="color:#D73A49">function!</span><span style="color:#6F42C1"> s:reverse_lines</span><span style="color:#24292E">(from, </span><span style="color:#005CC5">to</span><span style="color:#24292E">) </span><span style="color:#D73A49">abort</span></span>
 <span class="line"><span style="color:#005CC5">    execute</span><span style="color:#6F42C1"> printf</span><span style="color:#24292E">(</span><span style="color:#032F62">"%d,%dg/^/m%d"</span><span style="color:#24292E">, a:from, a:to, a:from</span><span style="color:#D73A49"> - </span><span style="color:#005CC5">1</span><span style="color:#24292E">)</span></span>
 <span class="line"><span style="color:#D73A49">endfunction</span></span>
@@ -220,7 +220,7 @@
                 </p>
               </div>
             </div>
-            <div class="codeblock" language="vim">
+            <div class="codeblock">
               <pre class="shiki github-light" style="background-color:#f5f5f5;color:#24292e" tabindex="0"><code><span class="line"><span style="color:#D73A49">command!</span><span style="color:#24292E"> -bar -</span><span style="color:#D73A49">range=</span><span style="color:#24292E">%</span></span>
 <span class="line"><span style="color:#D73A49">    \</span><span style="color:#24292E"> Reverse</span></span>
 <span class="line"><span style="color:#D73A49">    \</span><span style="color:#24292E"> keeppatterns &#x3C;line1>,&#x3C;line2>g</span><span style="color:#032F62">/^/</span><span style="color:#24292E">m&#x3C;line1>-</span><span style="color:#005CC5">1</span></span></code></pre>