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from pathlib import Path
from typing import Dict, Tuple
import frontmatter
import markdown
import yaml
from django.http import Http404
from markdown.extensions.toc import TocExtension
def get_category(path: Path) -> Dict[str, str]:
"""Load category information by name from _info.yml."""
if not path.is_dir():
raise Http404("Category not found.")
return yaml.safe_load(path.joinpath("_info.yml").read_text(encoding="utf-8"))
def get_categories(path: Path) -> Dict[str, Dict]:
"""Get information for all categories."""
categories = {}
for item in path.iterdir():
if item.is_dir():
categories[item.name] = get_category(item)
return categories
def get_category_pages(path: Path) -> Dict[str, Dict]:
"""Get all page names and their metadata at a category path."""
pages = {}
for item in path.glob("*.md"):
if item.is_file():
pages[item.stem] = frontmatter.load(item).metadata
return pages
def get_page(path: Path) -> Tuple[str, Dict]:
"""Get one specific page."""
if not path.is_file():
raise Http404("Page not found.")
metadata, content = frontmatter.parse(path.read_text(encoding="utf-8"))
toc_depth = metadata.get("toc", 1)
md = markdown.Markdown(
extensions=[
"extra",
# Empty string for marker to disable text searching for [TOC]
# By using a metadata key instead, we save time on long markdown documents
TocExtension(permalink=True, marker="", toc_depth=toc_depth)
]
)
html = md.convert(content)
# Don't set the TOC if the metadata does not specify one
if "toc" in metadata:
metadata["toc"] = md.toc
return str(html), metadata
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