FIX: Remove console warning for "nohighlight" (#19447)

app/assets/javascripts/discourse/tests/unit/lib/pretty-text-test.js

@@ -878,8 +878,8 @@ eviltrout</p>
 
     assert.cooked(
       "```text\ntext\n```",
-      '<pre><code class="lang-nohighlight">text\n</code></pre>',
+      '<pre><code class="lang-plaintext">text\n</code></pre>',
-      "handles text by adding nohighlight"
+      "handles text by adding plaintext"
     );
 
     assert.cooked(
@@ -908,7 +908,7 @@ eviltrout</p>
 
     assert.cooked(
       "```eviltrout\nhello\n```",
-      '<pre data-code-wrap="eviltrout"><code class="lang-nohighlight">hello\n</code></pre>',
+      '<pre data-code-wrap="eviltrout"><code class="lang-plaintext">hello\n</code></pre>',
       "it converts to custom block unknown code names"
     );
 

app/assets/javascripts/pretty-text/engines/discourse-markdown/code.js

@@ -54,11 +54,11 @@ function render(tokens, idx, options, env, slf, md) {
     md.options.discourse.acceptableCodeClasses || [];
 
   if (TEXT_CODE_CLASSES.includes(tag)) {
-    className = "lang-nohighlight";
+    className = "lang-plaintext";
   } else if (acceptableCodeClasses.includes(tag)) {
     className = `lang-${tag}`;
   } else {
-    className = "lang-nohighlight";
+    className = "lang-plaintext";
     attributes["wrap"] = tag;
   }
 
@@ -81,7 +81,7 @@ export function setup(helper) {
     opts.acceptableCodeClasses = (siteSettings.highlighted_languages || "")
       .split("|")
       .filter(Boolean)
-      .concat(["auto", "nohighlight"]);
+      .concat(["auto", "plaintext"]);
   });
 
   helper.allowList(["pre[data-code-*]"]);

config/locales/server.en.yml

@@ -2214,7 +2214,7 @@ en:
     display_name_on_posts: "Show a user's full name on their posts in addition to their @username."
     show_time_gap_days: "If two posts are made this many days apart, display the time gap in the topic."
     short_progress_text_threshold: "After the number of posts in a topic goes above this number, the progress bar will only show the current post number. If you change the progress bar's width, you may need to change this value."
-    default_code_lang: "Default programming language syntax highlighting applied to code blocks (auto, nohighlight, ruby, python etc.). This value must also be present in the `highlighted languages` site setting."
+    default_code_lang: "Default programming language syntax highlighting applied to code blocks (auto, text, ruby, python etc.). This value must also be present in the `highlighted languages` site setting."
     warn_reviving_old_topic_age: "When someone starts replying to a topic where the last reply is older than this many days, a warning will be displayed. Disable by setting to 0."
     autohighlight_all_code: "Force apply code highlighting to all preformatted code blocks even when they didn't explicitly specify the language."
     highlighted_languages: "Included syntax highlighting rules. (Warning: including too many languages may impact performance) see: <a href='https://highlightjs.org/static/demo/' target='_blank'>https://highlightjs.org/static/demo</a> for a demo"

spec/lib/pretty_text_spec.rb

@@ -549,17 +549,17 @@ RSpec.describe PrettyText do
       expect(PrettyText.cook("```   ruby the mooby\n`````")).to eq('<pre><code class="lang-ruby"></code></pre>')
       expect(PrettyText.cook("```cpp\ncpp\n```")).to match_html("<pre><code class='lang-cpp'>cpp\n</code></pre>")
       expect(PrettyText.cook("```\ncpp\n```")).to match_html("<pre><code class='lang-auto'>cpp\n</code></pre>")
-      expect(PrettyText.cook("```text\ncpp\n```")).to match_html("<pre><code class='lang-nohighlight'>cpp\n</code></pre>")
+      expect(PrettyText.cook("```text\ncpp\n```")).to match_html("<pre><code class='lang-plaintext'>cpp\n</code></pre>")
-      expect(PrettyText.cook("```custom\ncustom content\n```")).to match_html("<pre data-code-wrap='custom'><code class='lang-nohighlight'>custom content\n</code></pre>")
+      expect(PrettyText.cook("```custom\ncustom content\n```")).to match_html("<pre data-code-wrap='custom'><code class='lang-plaintext'>custom content\n</code></pre>")
-      expect(PrettyText.cook("```custom foo=bar\ncustom content\n```")).to match_html("<pre data-code-foo='bar' data-code-wrap='custom'><code class='lang-nohighlight'>custom content</code></pre>")
+      expect(PrettyText.cook("```custom foo=bar\ncustom content\n```")).to match_html("<pre data-code-foo='bar' data-code-wrap='custom'><code class='lang-plaintext'>custom content</code></pre>")
-      expect(PrettyText.cook("```INVALID a=1\n```")).to match_html("<pre data-code-a='1' data-code-wrap='INVALID'><code class='lang-nohighlight'>\n</code></pre>")
+      expect(PrettyText.cook("```INVALID a=1\n```")).to match_html("<pre data-code-a='1' data-code-wrap='INVALID'><code class='lang-plaintext'>\n</code></pre>")
-      expect(PrettyText.cook("```INVALID a=1, foo=bar , baz=2\n```")).to match_html("<pre data-code-a='1' data-code-foo='bar' data-code-baz='2' data-code-wrap='INVALID'><code class='lang-nohighlight'>\n</code></pre>")
+      expect(PrettyText.cook("```INVALID a=1, foo=bar , baz=2\n```")).to match_html("<pre data-code-a='1' data-code-foo='bar' data-code-baz='2' data-code-wrap='INVALID'><code class='lang-plaintext'>\n</code></pre>")
-      expect(PrettyText.cook("```text\n```")).to match_html("<pre><code class='lang-nohighlight'>\n</code></pre>")
+      expect(PrettyText.cook("```text\n```")).to match_html("<pre><code class='lang-plaintext'>\n</code></pre>")
       expect(PrettyText.cook("```auto\n```")).to match_html("<pre><code class='lang-auto'>\n</code></pre>")
       expect(PrettyText.cook("```ruby startline=3 $%@#\n```")).to match_html("<pre data-code-startline='3'><code class='lang-ruby'>\n</code></pre>")
-      expect(PrettyText.cook("```mermaid a_-你=17\n```")).to match_html("<pre data-code-a_-='17' data-code-wrap='mermaid'><code class='lang-nohighlight'>\n</code></pre>")
+      expect(PrettyText.cook("```mermaid a_-你=17\n```")).to match_html("<pre data-code-a_-='17' data-code-wrap='mermaid'><code class='lang-plaintext'>\n</code></pre>")
-      expect(PrettyText.cook("```mermaid foo=<script>alert(document.cookie)</script>\n```")).to match_html("<pre data-code-foo='&lt;script&gt;alert(document.cookie)&lt;/script&gt;' data-code-wrap='mermaid'><code class='lang-nohighlight'>\n</code></pre>")
+      expect(PrettyText.cook("```mermaid foo=<script>alert(document.cookie)</script>\n```")).to match_html("<pre data-code-foo='&lt;script&gt;alert(document.cookie)&lt;/script&gt;' data-code-wrap='mermaid'><code class='lang-plaintext'>\n</code></pre>")
-      expect(PrettyText.cook("```mermaid foo=‮ begin admin o\n```")).to match_html("<pre data-code-wrap='mermaid'><code class='lang-nohighlight'>\n</code></pre>")
+      expect(PrettyText.cook("```mermaid foo=‮ begin admin o\n```")).to match_html("<pre data-code-wrap='mermaid'><code class='lang-plaintext'>\n</code></pre>")
       expect(PrettyText.cook("```c++\nc++\n```")).to match_html("<pre><code class='lang-c++'>c++\n</code></pre>")
       expect(PrettyText.cook("```structured-text\nstructured-text\n```")).to match_html("<pre><code class='lang-structured-text'>structured-text\n</code></pre>")
       expect(PrettyText.cook("```p21\np21\n```")).to match_html("<pre><code class='lang-p21'>p21\n</code></pre>")