1 files changed, 58 insertions, 0 deletions
diff --git a/docs/src/plugins/blog/structure/markdown.py b/docs/src/plugins/blog/structure/markdown.py
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+++ b/docs/src/plugins/blog/structure/markdown.py
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+# Copyright (c) 2016-2023 Martin Donath <martin.donath@squidfunk.com>
+
+# Permission is hereby granted, free of charge, to any person obtaining a copy
+# of this software and associated documentation files (the "Software"), to
+# deal in the Software without restriction, including without limitation the
+# rights to use, copy, modify, merge, publish, distribute, sublicense, and/or
+# sell copies of the Software, and to permit persons to whom the Software is
+# furnished to do so, subject to the following conditions:
+
+# The above copyright notice and this permission notice shall be included in
+# all copies or substantial portions of the Software.
+
+# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+# IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+# FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL THE
+# AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+# LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+# FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
+# IN THE SOFTWARE.
+
+from markdown.treeprocessors import Treeprocessor
+from mkdocs.structure.pages import Page
+from mkdocs.utils import get_relative_url
+from xml.etree.ElementTree import Element
+
+# -----------------------------------------------------------------------------
+# Classes
+# -----------------------------------------------------------------------------
+
+# Excerpt tree processor
+class ExcerptTreeprocessor(Treeprocessor):
+
+    # Initialize excerpt tree processor
+    def __init__(self, page: Page, base: Page = None):
+        self.page = page
+        self.base = base
+
+    # Transform HTML after Markdown processing
+    def run(self, root: Element):
+        main = True
+
+        # We're only interested in anchors, which is why we continue when the
+        # link does not start with an anchor tag
+        for el in root.iter("a"):
+            anchor = el.get("href")
+            if not anchor.startswith("#"):
+                continue
+
+            # The main headline should link to the post page, not to a specific
+            # anchor, which is why we remove the anchor in that case
+            path = get_relative_url(self.page.url, self.base.url)
+            if main:
+                el.set("href", path)
+            else:
+                el.set("href", path + anchor)
+
+            # Main headline has been seen
+            main = False