Skip to content
New issue

Have a question about this project? Sign up for a free GitHub account to open an issue and contact its maintainers and the community.

Sign up for GitHub

By clicking “Sign up for GitHub”, you agree to our terms of service and privacy statement. We’ll occasionally send you account related emails.

Already on GitHub? Sign in to your account

[misc] use highlight.js for syntax highlighting in blog post #18318

Open
wants to merge 2 commits into
base: master
Choose a base branch
from
Open

[misc] use highlight.js for syntax highlighting in blog post #18318

Changes from all commits
Commits
Show all changes
2 commits
Select commit Hold shift + click to select a range
22c3586
[misc] use highlight.js for syntax highlighting in blog post
svalentin Dec 20, 2024
bf7dd83
[pre-commit.ci] auto fixes from pre-commit.com hooks
pre-commit-ci[bot] Dec 20, 2024
File filter

Filter by extension

Filter by extension
Conversations
Failed to load comments.
Loading
Jump to
Jump to file
Failed to load files.
Loading
Diff view
Diff view
29 changes: 23 additions & 6 deletions misc/gen_blog_post_html.py
View file
Open in desktop
Original file line number Diff line number Diff line change
Expand Up @@ -44,16 +44,23 @@ def format_code(h: str) -> str:
while i < len(a):
if a[i].startswith(" ") or a[i].startswith("```"):
indent = a[i].startswith(" ")
language: str = ""
if not indent:
language = a[i][3:]
i += 1
r.append("<pre><code>")
if language:
r.append(f'<pre><code class="language-{language}">')
else:
r.append("<pre><code>")
while i < len(a) and (
(indent and a[i].startswith(" ")) or (not indent and not a[i].startswith("```"))
):
# Undo &gt; and &lt;
line = a[i].replace("&gt;", ">").replace("&lt;", "<")
if not indent:
line = " " + line
if indent:
# Undo this extra level of indentation so it looks nice with
# syntax highlighting CSS.
line = line[4:]
r.append(html.escape(line))
i += 1
r.append("</code></pre>")
Expand All @@ -64,7 +71,7 @@ def format_code(h: str) -> str:
i += 1
formatted = "\n".join(r)
# remove empty first line for code blocks
return re.sub(r"<code>\n", r"<code>", formatted)
return re.sub(r"<code([^\>]*)>\n", r"<code\1>", formatted)


def convert(src: str) -> str:
Expand Down Expand Up @@ -131,8 +138,18 @@ def convert(src: str) -> str:
h,
)

# Add missing top-level HTML tags
h = '<html>\n<meta charset="utf-8" />\n<body>\n' + h + "</body>\n</html>"
# Add top-level HTML tags and headers for syntax highlighting css/js
# We're configuring hljs to highlight python and bash code. We can remove
# this configure call to make it try all the languages it supports.
h = f"""<html>
<meta charset="utf-8" />
<link rel="stylesheet" href="https://cdnjs.cloudflare.com/ajax/libs/highlight.js/11.9.0/styles/a11y-light.min.css">
<script src="https://cdnjs.cloudflare.com/ajax/libs/highlight.js/11.9.0/highlight.min.js"></script>
<script>hljs.configure({{languages:["python","bash"]}});hljs.highlightAll();</script>
<body>
{h}
</body>
</html>"""

return h

Expand Down
Loading