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86 lines
2.7 KiB
Python
86 lines
2.7 KiB
Python
from pelican import signals
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from pelican.readers import MarkdownReader, Category, Markdown, pelican_open
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from pelican.utils import get_date, slugify
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from markdown.preprocessors import Preprocessor
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from datefinder import find_dates
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import os.path
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from datetime import datetime
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class BlockquotesPreprocessor(Preprocessor):
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def run(self, lines):
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new_lines = []
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for line in lines:
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if line.startswith(">"):
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# new_lines.append(" ")
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new_lines.append(line)
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else:
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new_lines.append(line)
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return new_lines
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class SimpleReader(MarkdownReader):
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enabled = True
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file_extensions = ["md"]
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def __init__(self, *args, **kwargs):
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super(SimpleReader, self).__init__(*args, **kwargs)
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self.settings["MARKDOWN"]["extensions"].append("markdown.extensions.toc")
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def read(self, source_path):
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self._source_path = source_path
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self._md = Markdown(**self.settings["MARKDOWN"])
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if "Lectures" in source_path:
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self._md.preprocessors.register(
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BlockquotesPreprocessor(self._md), "blockquotes", 10
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)
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with pelican_open(source_path) as text:
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content = self._md.convert(text)
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if hasattr(self._md, "Meta"):
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metadata = self._parse_metadata(self._md.Meta)
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else:
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metadata = {}
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# Add the TOC to the metadata.
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if len(self._md.toc) > 300:
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metadata["table_of_contents"] = self._md.toc
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# Get the title from the first h1
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if "title" not in metadata and len(self._md.toc_tokens):
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first_title = self._md.toc_tokens[0]
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metadata["title"] = first_title["name"]
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content = content.replace(
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'<h1 id="{id}">{name}</h1>'.format(**first_title), ""
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)
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# Get the date from the filename, if possible.
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parts = os.path.splitext(os.path.basename(source_path))[0].split("-")
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if "read_on" in metadata:
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metadata["date"] = datetime.strptime(metadata["read_on"], "%B %Y")
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elif len(parts) >= 3:
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metadata["date"] = get_date("-".join(parts[:3]))
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if "slug" not in metadata:
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metadata["slug"] = slugify(
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metadata["title"], self.settings.get("SLUG_REGEX_SUBSTITUTIONS", [])
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)
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category = os.path.basename(
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os.path.abspath(os.path.join(source_path, os.pardir))
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)
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metadata["category"] = self.process_metadata("category", category)
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return content, metadata
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def add_reader(readers):
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readers.reader_classes["md"] = SimpleReader
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# This is how pelican works.
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def register():
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signals.readers_init.connect(add_reader)
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