Extensible, flag-controlled DOM filters

[paperdoorknob] / paperdoorknob.py

diff --git a/paperdoorknob.py b/paperdoorknob.py
index 8329f83e69e026791f6997a296a10af19ab4d2e1..2bcf31afe3c1b38407eec51f79babed956847fc9 100644 (file)
--- a/paperdoorknob.py
+++ b/paperdoorknob.py
@@ -5,46 +5,19 @@
 # Free Software Foundation, version 3.
 
 
 # Free Software Foundation, version 3.
 
 

-from argparse import ArgumentParser

 import itertools
 import itertools

-import os.path

 
 from typing import Iterable
 
 from bs4 import BeautifulSoup
 from bs4.element import Tag
 
 from typing import Iterable
 
 from bs4 import BeautifulSoup
 from bs4.element import Tag

-import requests
-import requests_cache
-from xdg_base_dirs import xdg_cache_home

 
 

+from args import spec_from_commandline_args
+from spec import Spec

 
 

-def command_line_parser() -> ArgumentParser:
-    parser = ArgumentParser(prog='paperdoorknob', description='Print glowfic')
-    parser.add_argument(
-        '--cache_path',
-        metavar='PATH',
-        help='Where to keep the http cache (instead of %(default)s)',
-        default=os.path.join(xdg_cache_home(), "paperdoorknob"))
-    parser.add_argument(
-        '--timeout',
-        help='How long to wait for HTTP requests, in seconds',
-        default=30)
-    parser.add_argument('url', help='URL to retrieve')
-    return parser

 
 

-
-def fetch(url: str, session: requests.Session, timeout: int) -> BeautifulSoup:
-    with session.get(url, timeout=timeout) as r:
-        r.raise_for_status()
-        return BeautifulSoup(r.text, 'html.parser')
-
-
-def clean(html: BeautifulSoup) -> BeautifulSoup:
-    for eb in html.find_all("div", class_="post-edit-box"):
-        eb.decompose()
-    for footer in html.find_all("div", class_="post-footer"):
-        footer.decompose()
-    return html
+def parse(content: bytes) -> BeautifulSoup:
+    return BeautifulSoup(content, 'html.parser')

 
 
 def replies(html: BeautifulSoup) -> Iterable[Tag]:
 
 
 def replies(html: BeautifulSoup) -> Iterable[Tag]:


@@ -63,18 +36,18 @@ def replies(html: BeautifulSoup) -> Iterable[Tag]:
     return itertools.chain([text()], the_replies())
 
 
     return itertools.chain([text()], the_replies())
 
 

-def process(
-        url: str,
-        session: requests.Session,
-        timeout: int) -> Iterable[Tag]:
-    html = clean(fetch(url, session, timeout))
-    return replies(html)
+def process(spec: Spec) -> None:
+    spec.texout.write(b'\\documentclass{article}\n\\begin{document}\n')
+    html = parse(spec.htmlfilter(spec.fetcher.fetch(spec.url)))
+    for r in replies(html):
+        spec.domfilter(r)
+        spec.texout.write(spec.texifier.texify(r))
+    spec.texout.write(b'\\end{document}\n')

 
 
 def main() -> None:
 
 
 def main() -> None:

-    args = command_line_parser().parse_args()
-    with requests_cache.CachedSession(args.cache_path, cache_control=True) as session:
-        process(args.url, session, args.timeout)
+    with spec_from_commandline_args() as spec:
+        process(spec)

 
 
 if __name__ == '__main__':
 
 
 if __name__ == '__main__':