Rename html → dom

[paperdoorknob] / paperdoorknob.py

diff --git a/paperdoorknob.py b/paperdoorknob.py
index 70f3af5d5c075c47ef54d8256e35d75e1ab63a45..ade0b885d42addb973f415599798bd2e153ac961 100644 (file)
--- a/paperdoorknob.py
+++ b/paperdoorknob.py
@@ -4,29 +4,76 @@
 # under the terms of the GNU General Public License as published by the
 # Free Software Foundation, version 3.
 
+from typing import Any, Iterable
 
-from argparse import ArgumentParser
-import requests
+from bs4 import BeautifulSoup
+from bs4.element import Tag
 
+from args import spec_from_commandline_args
+from glowfic import flatURL, makeChunk, renderChunk, Thread
+from spec import Spec
 
-def command_line_parser() -> ArgumentParser:
-    parser = ArgumentParser(prog='paperdoorknob', description='Print glowfic')
-    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 parse(content: bytes) -> BeautifulSoup:
+    return BeautifulSoup(content, 'html.parser')
 
-def fetch(url: str, timeout: int) -> None:
-    with requests.get(url, timeout=timeout) as r:
-        r.raise_for_status()
+
+def ilen(it: Iterable[Any]) -> int:
+    return sum(1 for _ in it)
+
+
+def get_title(dom: BeautifulSoup) -> str | None:
+    span = dom.findChild("span", id="post-title")
+    if not isinstance(span, Tag):
+        return None
+    return span.text
+
+
+def process(spec: Spec) -> None:
+    spec.texout.write(br'''\documentclass{article}
+\usepackage{booktabs}
+\usepackage{graphicx}
+\usepackage{longtable}
+\usepackage{soul}
+\usepackage{varwidth}
+\usepackage{wrapstuff}
+''')
+    if spec.geometry is not None:
+        spec.texout.write(br'\usepackage[' +
+                          spec.geometry.encode('UTF-8') +
+                          b']{geometry}\n')
+    spec.texout.write(br'''\begin{document}
+\newcommand{\href}[2]{#2\footnote{\detokenize{#1}}}
+\def\glowiconsize{%fmm}
+\newcommand{\glowicon}[1]{\includegraphics[
+  width=\glowiconsize,height=\glowiconsize,keepaspectratio
+]{#1}}
+\newcommand{\ifnotempty}[2]{\expandafter\ifx\expandafter\relax
+  \detokenize{#1}\relax\else #2\fi}
+%s
+''' % (spec.icon_size, spec.layout))
+    url = flatURL(spec.url)
+    spec.log('Fetching HTML...\r')
+    html = spec.fetcher.fetch(url)
+    spec.log('Parsing HTML...\r')
+    dom = parse(spec.htmlfilter(html))
+    thread = Thread(dom)
+    spec.log('Counting chunks...\r')
+    num_chunks = ilen(thread.chunkDOMs())
+    title = get_title(dom) or "chunk"
+    for i, r in enumerate(thread.chunkDOMs()):
+        percent = 100.0 * i / num_chunks
+        spec.log(f'Processing {title} {i} of {num_chunks} ({percent:.1f}%)\r')
+        spec.domfilter(r)
+        chunk = makeChunk(r, spec.images)
+        spec.texout.write(spec.texfilter(renderChunk(spec.texifier, chunk)))
+    spec.log('')
+    spec.texout.write(b'\\end{document}\n')
 
 
 def main() -> None:
-    args = command_line_parser().parse_args()
-    fetch(args.url, args.timeout)
+    with spec_from_commandline_args() as spec:
+        process(spec)
 
 
 if __name__ == '__main__':