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import os, sys; sys.path.insert(0, os.path.join(os.path.dirname(__file__), "..", ".."))
from pattern.web import Bing, plaintext
from pattern.en import parsetree
from pattern.search import Pattern
from pattern.db import Datasheet, pprint
# "X IS MORE IMPORTANT THAN Y"
# Here is a rough example of how to build a web miner.
# It mines comparative statements from Bing and stores the results in a table,
# which can be saved as a text file for further processing later on.
# Pattern matching also works with Sentence objects from the MBSP module.
# MBSP's parser is much more robust (but also slower).
#from MBSP import Sentence, parse
q = '"more important than"' # Bing search query
p = "NP VP? more important than NP" # Search pattern.
p = Pattern.fromstring(p)
d = Datasheet()
engine = Bing(license=None)
for i in range(1): # max=10
for result in engine.search(q, start=i+1, count=100, cached=True):
s = result.description
s = plaintext(s)
t = parsetree(s)
for m in p.search(t):
a = m.constituents(constraint=0)[-1] # Left NP.
b = m.constituents(constraint=5)[ 0] # Right NP.
d.append((
a.string.lower(),
b.string.lower()))
pprint(d)
print
print len(d), "results."
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