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#!/usr/bin/env python
"""
etymology.py - Phenny Etymology Module
Copyright 2007-9, Sean B. Palmer, inamidst.com
Licensed under the Eiffel Forum License 2.
http://inamidst.com/phenny/
"""
import re, urllib
import web
from tools import deprecated
etysite = 'http://www.etymonline.com/index.php?'
etyuri = etysite + 'allowed_in_frame=0&term=%s'
etysearch = etysite + 'allowed_in_frame=0&search=%s'
r_definition = re.compile(r'(?ims)<dd[^>]*>.*?</dd>')
r_tag = re.compile(r'<(?!!)[^>]+>')
r_whitespace = re.compile(r'[\t\r\n ]+')
class Grab(urllib.URLopener):
def __init__(self, *args):
self.version = 'Mozilla/5.0 (Phenny)'
urllib.URLopener.__init__(self, *args)
def http_error_default(self, url, fp, errcode, errmsg, headers):
return urllib.addinfourl(fp, [headers, errcode], "http:" + url)
abbrs = [
'cf', 'lit', 'etc', 'Ger', 'Du', 'Skt', 'Rus', 'Eng', 'Amer.Eng', 'Sp',
'Fr', 'N', 'E', 'S', 'W', 'L', 'Gen', 'J.C', 'dial', 'Gk',
'19c', '18c', '17c', '16c', 'St', 'Capt', 'obs', 'Jan', 'Feb', 'Mar',
'Apr', 'Jul', 'Aug', 'Sep', 'Oct', 'Nov', 'Dec', 'c', 'tr', 'e', 'g'
]
t_sentence = r'^.*?(?<!%s)(?:\.(?= [A-Z0-9]|\Z)|\Z)'
r_sentence = re.compile(t_sentence % ')(?<!'.join(abbrs))
def unescape(s):
s = s.replace('>', '>')
s = s.replace('<', '<')
s = s.replace('&', '&')
return s
def text(html):
html = r_tag.sub('', html)
html = r_whitespace.sub(' ', html)
return unescape(html).strip()
def etymology(word):
# @@ <nsh> sbp, would it be possible to have a flag for .ety to get 2nd/etc
# entries? - http://swhack.com/logs/2006-07-19#T15-05-29
if len(word) > 25:
raise ValueError("Word too long: %s[...]" % word[:10])
word = {'axe': 'ax/axe'}.get(word, word)
grab = urllib._urlopener
urllib._urlopener = Grab()
urllib._urlopener.addheader("Referer", "http://www.etymonline.com/")
bytes = web.get(etyuri % web.urllib.quote(word))
urllib._urlopener = grab
definitions = r_definition.findall(bytes)
if not definitions:
return None
defn = text(definitions[0])
m = r_sentence.match(defn)
if not m:
return None
sentence = m.group(0)
# try:
# sentence = unicode(sentence, 'iso-8859-1')
# sentence = sentence.encode('utf-8')
# except: pass
sentence = web.decode(sentence)
maxlength = 275
if len(sentence) > maxlength:
sentence = sentence[:maxlength]
words = sentence[:-5].split(' ')
words.pop()
sentence = ' '.join(words) + ' [...]'
sentence = '"' + sentence.replace('"', "'") + '"'
return sentence + ' - ' + ('http://etymonline.com/index.php?term=%s' % web.urllib.quote(word))
@deprecated
def f_etymology(self, origin, match, args):
word = match.group(2)
try: result = etymology(word.encode('iso-8859-1'))
except IOError:
msg = "Can't connect to etymonline.com (%s)" % (etyuri % word)
self.msg(origin.sender, msg)
return
except AttributeError:
result = None
if result is not None:
self.msg(origin.sender, result)
else:
uri = etysearch % word
msg = 'Can\'t find the etymology for "%s". Try %s' % (word, ('http://etymonline.com/index.php?term=%s' % web.urllib.quote(word)))
self.msg(origin.sender, msg)
# @@ Cf. http://swhack.com/logs/2006-01-04#T01-50-22
f_etymology.rule = (['ety'], r"(.+?)$")
f_etymology.thread = True
f_etymology.priority = 'high'
if __name__=="__main__":
import sys
print etymology(sys.argv[1])
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