# Free Software Foundation, version 3.
-from dataclasses import dataclass
+import dataclasses
import itertools
-from urllib.parse import parse_qsl, urlencode, urlparse, urlunparse
+from urllib.parse import parse_qsl, urlencode, urljoin, urlparse, urlunparse
-from typing import Iterable
+from typing import Any, Iterable
from bs4 import BeautifulSoup
from bs4.element import Tag
from texify import Texifier
+def ilen(it: Iterable[Any]) -> int:
+ return sum(1 for _ in it)
+
+
def _removeViewFromURL(url: str) -> str:
u = urlparse(url)
old_qs = parse_qsl(u.query)
return urlunparse(u._replace(query=urlencode(qs)))
-@dataclass(frozen=True)
+@dataclasses.dataclass(frozen=True)
class Chunk:
icon: str | None
character: Tag | None
class Thread:
def __init__(self, spec: Spec) -> None:
+ def find_next_thread(dom: BeautifulSoup) -> str | None:
+ for c in dom.findChildren('div', class_='post-navheader'):
+ for a in c.findChildren('a'):
+ if 'Next Post' in a.text and 'href' in a.attrs and isinstance(
+ a.attrs['href'], str):
+ return urljoin(spec.url, a.attrs['href'])
+ return None
+
spec.log('Fetching HTML...\r')
- html = spec.fetcher.fetch(flatURL(spec.url))
+ html = spec.fetcher.fetch(spec.url)
+ flat_html = spec.fetcher.fetch(flatURL(spec.url))
spec.log('Parsing HTML...\r')
- self._dom = BeautifulSoup(spec.htmlfilter(html), 'html.parser')
+ self._next_thread = find_next_thread(
+ BeautifulSoup(spec.htmlfilter(html), 'html.parser'))
+ self._dom = BeautifulSoup(spec.htmlfilter(flat_html), 'html.parser')
+ self._spec = spec
def title(self) -> str | None:
span = self._dom.findChild("span", id="post-title")
return None
return span.text.strip()
+ def next_thread(self) -> str | None:
+ return self._next_thread
+
def chunkDOMs(self) -> Iterable[Tag]:
def text() -> Tag:
body = self._dom.body
return itertools.chain([text()], the_replies())
+ def emit(self) -> None:
+ self._spec.log('Counting chunks...\r')
+ num_chunks = ilen(self.chunkDOMs())
+ title = self.title() or "chunk"
+ for i, r in enumerate(self.chunkDOMs()):
+ percent = 100.0 * (i + 1) / num_chunks
+ self._spec.log(
+ f'Processing {title} {i+1} of {num_chunks} ({percent:.1f}%)\r')
+ self._spec.domfilter(r)
+ chunk = makeChunk(r, self._spec.images)
+ self._spec.texout.write(
+ self._spec.texfilter(renderChunk(self._spec.texifier, chunk)))
+ self._spec.log('')
+ next_url = self.next_thread()
+ if next_url is not None:
+ Thread(dataclasses.replace(self._spec, url=next_url)).emit()
+
def makeChunk(chunk_dom: Tag, image_store: ImageStore) -> Chunk: