h/plugins/gcalc.py

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import urllib2
import re
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from util import hook
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@hook.command
def calc(inp):
'''.calc <term> -- returns Google Calculator result'''
if not inp:
return calc.__doc__
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url = "http://www.google.com/search?q="
request = urllib2.Request(url + urllib2.quote(inp, ''))
request.add_header('User-Agent', 'skybot')
page = urllib2.build_opener().open(request).read()
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# ugh, scraping HTML with regexes
m = re.search(r'<h2 class=r style="font-size:138%"><b>(.*?)</b>', page)
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if m is None:
return "could not calculate " + inp
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result = m.group(1).replace("<font size=-2> </font>", ",")
result = result.replace(" &#215; 10<sup>", "E").replace("</sup>", "")
result = result.replace("\xa0", ",")
return result