Spaces:
Runtime error
Runtime error
File size: 2,803 Bytes
ed4d993 |
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 |
import re
from pathlib import Path
from typing import Iterator, Union
from langchain_core.documents import Document
from langchain_community.document_loaders.base import BaseLoader
class AcreomLoader(BaseLoader):
"""Load `acreom` vault from a directory."""
FRONT_MATTER_REGEX = re.compile(r"^---\n(.*?)\n---\n", re.MULTILINE | re.DOTALL)
"""Regex to match front matter metadata in markdown files."""
def __init__(
self,
path: Union[str, Path],
encoding: str = "UTF-8",
collect_metadata: bool = True,
):
"""Initialize the loader."""
self.file_path = path
"""Path to the directory containing the markdown files."""
self.encoding = encoding
"""Encoding to use when reading the files."""
self.collect_metadata = collect_metadata
"""Whether to collect metadata from the front matter."""
def _parse_front_matter(self, content: str) -> dict:
"""Parse front matter metadata from the content and return it as a dict."""
if not self.collect_metadata:
return {}
match = self.FRONT_MATTER_REGEX.search(content)
front_matter = {}
if match:
lines = match.group(1).split("\n")
for line in lines:
if ":" in line:
key, value = line.split(":", 1)
front_matter[key.strip()] = value.strip()
else:
# Skip lines without a colon
continue
return front_matter
def _remove_front_matter(self, content: str) -> str:
"""Remove front matter metadata from the given content."""
if not self.collect_metadata:
return content
return self.FRONT_MATTER_REGEX.sub("", content)
def _process_acreom_content(self, content: str) -> str:
# remove acreom specific elements from content that
# do not contribute to the context of current document
content = re.sub(r"\s*-\s\[\s\]\s.*|\s*\[\s\]\s.*", "", content) # rm tasks
content = re.sub(r"#", "", content) # rm hashtags
content = re.sub(r"\[\[.*?\]\]", "", content) # rm doclinks
return content
def lazy_load(self) -> Iterator[Document]:
ps = list(Path(self.file_path).glob("**/*.md"))
for p in ps:
with open(p, encoding=self.encoding) as f:
text = f.read()
front_matter = self._parse_front_matter(text)
text = self._remove_front_matter(text)
text = self._process_acreom_content(text)
metadata = {
"source": str(p.name),
"path": str(p),
**front_matter,
}
yield Document(page_content=text, metadata=metadata)
|