60 lines
1.6 KiB
Python
60 lines
1.6 KiB
Python
import re
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from util import hook, http, text, web
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@hook.command('math')
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@hook.command('calc')
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@hook.command('wa')
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@hook.command
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def wolframalpha(inp, bot=None):
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"""wa <query> -- Computes <query> using Wolfram Alpha."""
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api_key = bot.config.get("api_keys", {}).get("wolframalpha", None)
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if not api_key:
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return "error: missing api key"
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url = 'http://api.wolframalpha.com/v2/query?format=plaintext'
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result = http.get_xml(url, input=inp, appid=api_key)
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# get the URL for a user to view this query in a browser
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query_url = "http://www.wolframalpha.com/input/?i=" + \
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http.quote_plus(inp.encode('utf-8'))
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short_url = web.try_isgd(query_url)
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pod_texts = []
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for pod in result.xpath("//pod[@primary='true']"):
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title = pod.attrib['title']
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if pod.attrib['id'] == 'Input':
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continue
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results = []
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for subpod in pod.xpath('subpod/plaintext/text()'):
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subpod = subpod.strip().replace('\\n', '; ')
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subpod = re.sub(r'\s+', ' ', subpod)
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if subpod:
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results.append(subpod)
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if results:
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pod_texts.append(title + ': ' + ', '.join(results))
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ret = ' - '.join(pod_texts)
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if not pod_texts:
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return 'No results.'
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ret = re.sub(r'\\(.)', r'\1', ret)
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def unicode_sub(match):
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return unichr(int(match.group(1), 16))
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ret = re.sub(r'\\:([0-9a-z]{4})', unicode_sub, ret)
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ret = text.truncate_str(ret, 250)
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if not ret:
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return 'No results.'
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return "{} - {}".format(ret, short_url)
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