51 lines
1.3 KiB
Python
51 lines
1.3 KiB
Python
|
import re
|
||
|
|
import urllib2
|
||
|
|
|
||
|
|
from lxml import html
|
||
|
|
|
||
|
|
from util import hook
|
||
|
|
|
||
|
|
@hook.command
|
||
|
|
@hook.command('wa')
|
||
|
|
def wolframalpha(inp):
|
||
|
|
".wa/.wolframalpha <query> -- scrapes Wolfram Alpha's" \
|
||
|
|
"results for <query>"
|
||
|
|
|
||
|
|
if not inp:
|
||
|
|
return wolframalpha.__query__
|
||
|
|
|
||
|
|
url = "http://www.wolframalpha.com/input/?i=%s&asynchronous=false"
|
||
|
|
|
||
|
|
h = html.parse(url % urllib2.quote(inp, safe=''))
|
||
|
|
|
||
|
|
pods = h.xpath("//div[@class='pod ']")
|
||
|
|
|
||
|
|
pod_texts = []
|
||
|
|
for pod in pods:
|
||
|
|
heading = pod.find('h1/span').text_content().strip()
|
||
|
|
results = []
|
||
|
|
for image in pod.xpath('div/div[@class="output"]/img'):
|
||
|
|
alt = image.attrib['alt'].strip()
|
||
|
|
alt = alt.replace('\\n', '; ')
|
||
|
|
alt = re.sub(r'\s+', ' ', alt)
|
||
|
|
if alt:
|
||
|
|
results.append(alt)
|
||
|
|
if results:
|
||
|
|
pod_texts.append(heading + ' ' + '|'.join(results))
|
||
|
|
|
||
|
|
ret = '. '.join(pod_texts[1:]) # first pod is the input
|
||
|
|
|
||
|
|
if not ret:
|
||
|
|
if not pod_texts:
|
||
|
|
return 'no results'
|
||
|
|
ret = pod_texts[0] # definite integrals have only the result pod first
|
||
|
|
|
||
|
|
if len(ret) > 430:
|
||
|
|
ret = ret[:ret.rfind(' ', 0, 430)]
|
||
|
|
ret = re.sub(r'\W+$', '', ret) + '...'
|
||
|
|
|
||
|
|
if not ret:
|
||
|
|
return 'no result'
|
||
|
|
|
||
|
|
return ret
|