blacklight/madblog
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Infer the title of an article/file when not specified in the header metadata

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Infer the title from the first line of the file if it's a header,
otherwise use the filename.
This commit is contained in:
Fabio Manganiello 2022-06-11 23:54:18 +02:00
parent 81687c430b
commit 56a271d0b6
2 changed files with 49 additions and 15 deletions
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42
madblog/app.py
View file

@ -12,6 +12,8 @@ from .latex import MarkdownLatex
class BlogApp(Flask):
_title_header_regex = re.compile(r'^#\s*((\[(.*)\])|(.*))')
def __init__(self, *args, **kwargs):
super().__init__(*args, template_folder=config.templates_dir, **kwargs)
self.pages_dir = os.path.join(config.content_dir, 'markdown')
@ -62,10 +64,27 @@ class BlogApp(Flask):
else:
metadata[m.group(1)] = m.group(2)
if not metadata.get('title'):
# If the `title` header isn't available in the file,
# infer it from the first line of the file
with open(md_file, 'r') as f:
header = ''
for line in f.readlines():
header = line
break
metadata['title_inferred'] = True
m = self._title_header_regex.search(header)
if m:
metadata['title'] = m.group(3) or m.group(1)
else:
metadata['title'] = os.path.basename(md_file)
if not metadata.get('published'):
# If the `published` header isn't available in the file,
# infer it from the file's creation date
metadata['published'] = datetime.date.fromtimestamp(os.stat(md_file).st_ctime)
metadata['published_inferred'] = True
return metadata
@ -74,17 +93,30 @@ class BlogApp(Flask):
page = page + '.md'
metadata = self.get_page_metadata(page)
# Don't duplicate the page title if it's been inferred
if not (title or metadata.get('title_inferred')):
title = metadata.get('title', config.title)
with open(os.path.join(self.pages_dir, page), 'r') as f:
return render_template(
'article.html',
config=config,
title=title if title else metadata.get('title', config.title),
title=title,
image=metadata.get('image'),
description=metadata.get('description'),
author=re.match(r'(.+?)\s+<([^>]+>)', metadata['author'])[1] if 'author' in metadata else None,
author_email=re.match(r'(.+?)\s+<([^>]+)>', metadata['author'])[2] if 'author' in metadata else None,
published=(metadata['published'].strftime('%b %d, %Y')
if metadata.get('published') else None),
author=(
re.match(r'(.+?)\s+<([^>]+>)', metadata['author'])[1]
if 'author' in metadata else None
),
author_email=(
re.match(r'(.+?)\s+<([^>]+)>', metadata['author'])[2]
if 'author' in metadata else None
),
published=(
metadata['published'].strftime('%b %d, %Y')
if metadata.get('published') and not metadata.get('published_inferred')
else None
),
content=markdown(f.read(), extensions=['fenced_code', 'codehilite', MarkdownLatex()]),
skip_header=skip_header
)

4
madblog/templates/article.html
View file

@ -1,13 +1,15 @@
{% with title=title or config.title or 'Blog', skip_header=skip_header or not config.header, styles=['/css/blog.css', '/css/code.css'] %}
{% with title=title, skip_header=skip_header or not config.header, styles=['/css/blog.css', '/css/code.css'] %}
{% include 'common-head.html' %}
{% endwith %}
<main>
<div class="container">
{% if not skip_header %}
{% if title %}
<div class="title">
<h1>{{ title }}</h1>
</div>
{% endif %}
{% if description %}
<div class="description">