Rebuild site with lighter code background in dark mode

pelican-upstream-patch.diff

@@ -0,0 +1,142 @@
+diff --git a/pelican/contents.py b/pelican/contents.py
+index a06a1a6a..82da413a 100644
+--- a/pelican/contents.py
++++ b/pelican/contents.py
+@@ -27,6 +27,7 @@ from pelican.utils import (
+     sanitised_join,
+     set_date_tzinfo,
+     slugify,
++    strip_toc_elements_from_html,
+     truncate_html_paragraphs,
+     truncate_html_words,
+ )
+@@ -446,14 +447,20 @@ class Content:
+             content = truncate_html_paragraphs(self.content, max_paragraphs)
+ 
+         if self.settings["SUMMARY_MAX_LENGTH"] is None:
+-            return content
+-
+-        return truncate_html_words(
++            summary = content
++        else:
++            summary = truncate_html_words(
+             content,
+             self.settings["SUMMARY_MAX_LENGTH"],
+             self.settings["SUMMARY_END_SUFFIX"],
+         )
+ 
++        # Strip TOC elements that would contain broken links in summary context
++        # TOC anchors only work in full article view, not in summaries/excerpts
++        summary = strip_toc_elements_from_html(summary)
++
++        return summary
++
+     @property
+     def summary(self) -> str:
+         return self.get_summary(self.get_siteurl())
+diff --git a/pelican/tests/test_utils.py b/pelican/tests/test_utils.py
+index 95bf197a..f0b9c32b 100644
+--- a/pelican/tests/test_utils.py
++++ b/pelican/tests/test_utils.py
+@@ -420,6 +420,60 @@ class TestUtils(LoggedTestCase):
+         self.assertEqual(utils.truncate_html_paragraphs(three, 3), three)
+         self.assertEqual(utils.truncate_html_paragraphs(three, 4), three)
+ 
++    def test_strip_toc_elements_from_html(self):
++        # Test removing TOC div with various class names
++        html_with_toc = (
++            '<div class="contents topic" id="table-of-contents">'
++            '<p class="topic-title">Table of Contents</p>'
++            '<ul><li><a href="#section1">Section 1</a></li></ul>'
++            '</div>'
++            '<p>Some content here</p>'
++        )
++        result = utils.strip_toc_elements_from_html(html_with_toc)
++        self.assertNotIn('<div class="contents', result)
++        self.assertIn('<p>Some content here</p>', result)
++
++        # Test removing toc-backref anchors while preserving heading text
++        html_with_backref = (
++            '<h2><a class="toc-backref" href="#id1">Section Heading</a></h2>'
++            '<p>Some content</p>'
++        )
++        result = utils.strip_toc_elements_from_html(html_with_backref)
++        self.assertNotIn('toc-backref', result)
++        self.assertNotIn('<a class=', result)
++        self.assertIn('Section Heading', result)
++        self.assertIn('<h2>Section Heading</h2>', result)
++
++        # Test combined - remove both TOC div and backrefs
++        html_combined = (
++            '<div class="contents">'
++            '<p>TOC here</p>'
++            '</div>'
++            '<h2><a class="toc-backref" href="#id1">the design</a></h2>'
++            '<p>Article content</p>'
++            '<h2><a class="toc-backref" href="#id2">key features</a></h2>'
++            '<p>More content</p>'
++        )
++        result = utils.strip_toc_elements_from_html(html_combined)
++        self.assertNotIn('<div class="contents', result)
++        self.assertNotIn('toc-backref', result)
++        self.assertIn('the design', result)
++        self.assertIn('key features', result)
++        self.assertIn('<p>Article content</p>', result)
++
++        # Test empty input
++        self.assertEqual(utils.strip_toc_elements_from_html(''), '')
++
++        # Test HTML without TOC elements (should be unchanged)
++        plain_html = '<p>Just some plain content</p>'
++        self.assertEqual(utils.strip_toc_elements_from_html(plain_html), plain_html)
++
++        # Test case-insensitive matching
++        html_mixed_case = '<div CLASS="CONTENTS"><p>TOC</p></div><p>Content</p>'
++        result = utils.strip_toc_elements_from_html(html_mixed_case)
++        self.assertNotIn('CONTENTS', result)
++        self.assertIn('<p>Content</p>', result)
++
+     def test_process_translations(self):
+         fr_articles = []
+         en_articles = []
+diff --git a/pelican/utils.py b/pelican/utils.py
+index eb281ce9..50213bc0 100644
+--- a/pelican/utils.py
++++ b/pelican/utils.py
+@@ -643,6 +643,36 @@ def truncate_html_paragraphs(s, count):
+     return "".join(paragraphs)
+ 
+ 
++def strip_toc_elements_from_html(html: str) -> str:
++    """Strip table of contents elements from HTML summaries.
++
++    Removes TOC divs and toc-backref anchor links that would be broken
++    when article summaries are displayed outside of the full article context
++    (e.g., on homepage, in RSS feeds).
++
++    :param html: HTML content to process
++    :return: Cleaned HTML with TOC elements removed
++    """
++    # Remove the entire <div class="contents"> ... </div> block
++    html = re.sub(
++        r'<div\s+class="contents[^"]*"[^>]*>.*?</div>',
++        '',
++        html,
++        flags=re.DOTALL | re.IGNORECASE
++    )
++
++    # Remove anchor links from headings (e.g., <a class="toc-backref" href="#id1">text</a>)
++    # These links point to anchors that don't exist in summary context
++    html = re.sub(
++        r'<a[^>]*class="[^"]*toc-backref[^"]*"[^>]*>(.*?)</a>',
++        r'\1',
++        html,
++        flags=re.DOTALL | re.IGNORECASE
++    )
++
++    return html
++
++
+ def process_translations(
+     content_list: list[Content],
+     translation_id: str | Collection[str] | None = None,