newsbeuter - add filter script
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local/bin/titlefilter.py
Executable file
78
local/bin/titlefilter.py
Executable file
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#!/bin/env python
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# Filter items not containing keywords (given as parameters) from a rss feed.
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# Reads stdin, writes stdout.
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import sys
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# The hard way, pretty clean but doesn't work (probably) because HTMLParser puts
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# all the tags in lowercase.
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#from html.parser import HTMLParser
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#from itertools import chain
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#def start_to_tag(tag, attrs, end=False):
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# if end:
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# items = chain([tag], ('{}="{}"'.format(n,v) for (n,v) in attrs), ['/'])
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# else:
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# items = chain([tag], ('{}="{}"'.format(n,v) for (n,v) in attrs))
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# return "<{}>".format(" ".join(items))
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#
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#class FeedParser(HTMLParser):
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#
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# def __init__(self, keep):
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# super().__init__(self)
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# self.keep = keep
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# self.parts = []
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# self.item = None
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#
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# def handle_starttag(self, tag, attrs, end=False):
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# string = start_to_tag(tag, attrs, end=end)
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# if tag == "item":
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# self.item = string
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# elif self.item is None:
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# self.parts.append(string)
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# else:
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# self.item += string
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#
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# def handle_endtag(self, tag):
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# string = "</{}>".format(tag)
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# if self.item is None:
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# self.parts.append(string)
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# elif tag == "item":
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# if any(title in self.item for title in self.keep):
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# string = self.item + string
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# else:
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# string = ""
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# self.item = None
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# self.parts.append(string)
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# else:
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# self.item += string
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#
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# def handle_startendtag(self, tag, attrs):
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# self.handle_starttag(tag, attrs, end=True)
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#
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# def handle_data(self, data):
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# if self.item is None:
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# self.parts.append(data)
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# else:
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# self.item += data
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#
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# def handle_entityref(self, data):
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# self.handle_data("&{};".format(data))
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#
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# def handle_charref(self, data):
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# self.handle_data("$#{};".format(data))
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#parser = FeedParser(sys.argv)
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#parser.feed(sys.stdin.read())
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#parser.close()
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#print(''.join(parser.parts), end='')
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# The easy way. Works.
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def check(block):
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if '</item>' not in block: return True
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if any(title in block for title in sys.argv): return True
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return False
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print('<item>'.join(filter(check, sys.stdin.read().split('<item>'))), end='')
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