# Free Software Foundation, version 3.
-from abc import ABC, abstractmethod
-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 images import ImageStore
+from spec import Spec
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
# * Humans in the community tend to use "posts" to mean chunks.
-def chunkDOMs(html: BeautifulSoup) -> Iterable[Tag]:
- def text() -> Tag:
- body = html.body
- assert body
- text = body.find_next("div", class_="post-post")
- assert isinstance(text, Tag)
- return text
+class Thread:
- def the_replies() -> Iterable[Tag]:
- rs = html.find_all("div", class_="post-reply")
- assert all(isinstance(r, Tag) for r in rs)
- return rs
+ 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
- return itertools.chain([text()], the_replies())
+ spec.log('Fetching HTML...\r')
+ html = spec.fetcher.fetch(spec.url)
+ flat_html = spec.fetcher.fetch(flatURL(spec.url))
+ spec.log('Parsing HTML...\r')
+ 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")
+ if not isinstance(span, Tag):
+ 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
+ assert body
+ text = body.find_next("div", class_="post-post")
+ assert isinstance(text, Tag)
+ return text
+
+ def the_replies() -> Iterable[Tag]:
+ rs = self._dom.find_all("div", class_="post-reply")
+ assert all(isinstance(r, Tag) for r in rs)
+ return rs
+
+ 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 / num_chunks
+ self._spec.log(
+ f'Processing {title} {i} 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:
content)
-class Layout(ABC):
-
- @abstractmethod
- def renderChunk(self, chunk: Chunk) -> bytes:
- raise NotImplementedError()
-
-
-class ContentOnlyLayout(Layout):
-
- def __init__(self, texifier: Texifier) -> None:
- self._texifier = texifier
+def renderChunk(texifier: Texifier, chunk: Chunk) -> bytes:
+ return b''.join([
+ br'\glowhead{',
+ br'\glowicon{%s}' % chunk.icon.encode('UTF-8') if chunk.icon else b'',
+ b'}{',
+ texifier.texify(chunk.character) if chunk.character else b'',
+ b'}{',
+ texifier.texify(chunk.screen_name) if chunk.screen_name else b'',
+ b'}{',
+ texifier.texify(chunk.author) if chunk.author else b'',
+ b'}',
+ texifier.texify(chunk.content)])
- def renderChunk(self, chunk: Chunk) -> bytes:
- return self._texifier.texify(chunk.content) + b'\n'
+ContentOnlyLayout = br'''
+\newcommand{\glowhead}[4]{}
+'''
-class BelowIconLayout(Layout):
- def __init__(self, texifier: Texifier) -> None:
- self._texifier = texifier
-
- def renderChunk(self, chunk: Chunk) -> bytes:
- meta = []
- if chunk.icon:
- meta += [br'\glowicon{%s}' % chunk.icon.encode('UTF-8')]
- meta += [self._texifier.texify(x)
- for x in [chunk.character, chunk.screen_name, chunk.author]
- if x is not None]
-
- return br'''\wrapstuffclear
+BelowIconLayout = br'''
+\newcommand{\glowhead}[4]{\wrapstuffclear
\begin{wrapstuff}[l]
\fbox{
\begin{varwidth}{0.5\textwidth}
}\\*}
\vspace{-1em}
\begin{center}
-%s
+#1\ifnotempty
+{#1}{\\*}#2\ifnotempty
+{#2}{\\*}#3\ifnotempty
+{#3}{\\*}#4
\end{center}
\end{varwidth}
}
\strut
-\noindent %s
-''' % (
- br'\\*'.join(meta),
- self._texifier.texify(chunk.content))
+\noindent}'''
-class BesideIconLayout(Layout):
+# Why is \textwidth not the width of the text?
+# Why is the width of the text .765\textwidth?
+BesideIconLayout = br'''
+\newcommand{\glowhead}[4]{
- def __init__(self, texifier: Texifier) -> None:
- self._texifier = texifier
-
- def renderChunk(self, chunk: Chunk) -> bytes:
- meta = [
- chunk.character,
- chunk.screen_name,
- chunk.author,
- ]
+\strut
- # Why is \textwidth not the width of the text?
- # Why is the width of the text .765\textwidth?
- return br'''\noindent\fbox{
-%s
+\noindent\fbox{
+#1
\parbox[b]{.765\textwidth}{
\begin{center}
-%s
+#2\ifnotempty
+{#2}{\\*}#3\ifnotempty
+{#3}{\\*}#4
\end{center}
}
}\\*
\vspace{-0.75em}\\*
-\noindent %s
-
-\strut
-
-''' % (
- br'\glowicon{%s}' % chunk.icon.encode('UTF-8') if chunk.icon else b'',
- br'\\*'.join(self._texifier.texify(x) for x in meta if x is not None),
- self._texifier.texify(chunk.content))
+\noindent}'''
projects / paperdoorknob / blobdiff