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TextProcessor.py
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TextProcessor.py
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#!/usr/bin/python
# -*- coding: utf-8 -*-
import re
import nltk
import json
import emoji
import random
import string
import requests
from bs4 import BeautifulSoup
from requests.utils import requote_uri
from EmojiPredictor import EmojiPredictor
from EmojiUtil import *
class TextProcessor(object):
"""docstring for TextProcessor"""
def __init__(self, emojiPredictor):
super(TextProcessor, self).__init__()
self.nopunc = str.maketrans('', '', string.punctuation)
self.numemojis = 5
#you need to create your own google search url from the api console. This one is not guaranteed to work
self.gsearchURL = "https://www.googleapis.com/customsearch/v1?key=insert_your_key_here"
self.EMOJI_REGEXP = re.compile(_EMOJI_REGEXP)
self.ep = emojiPredictor
self.emojidict = json.load(open('emojis.json', encoding="utf-8"))
self.emojikeywords = {}
for k,v in self.emojidict.items():
if v['category'] == 'flags':
continue
emoji = v['char']
keys = v['keywords']
keys.append(k)
for key in keys:
if key not in self.emojikeywords:
self.emojikeywords[key] = []
self.emojikeywords[key].append(emoji)
def processText(self, premessage, text):
res = {"text":""}
if text == None or len(text.strip()) == 0:
return res
tlowertrim = text.lower().translate(self.nopunc).strip()
last_three_words = ' '.join(tlowertrim.split()[-3:])
#first check if it's a emoji selection task
if 'the first emoji' == last_three_words:
res["text"] = ' '.join(text.split()[:-3]) + ' '
res["selection"] = 0
elif 'the second emoji' == last_three_words:
res["text"] = ' '.join(text.split()[:-3]) + ' '
res["selection"] = 1
elif 'the third emoji' == last_three_words:
res["text"] = ' '.join(text.split()[:-3]) + ' '
res["selection"] = 2
elif 'the fourth emoji' == last_three_words:
res["text"] = ' '.join(text.split()[:-3]) + ' '
res["selection"] = 3
elif last_three_words in ['the fifth emoji', 'the last emoji']:
res["text"] = ' '.join(text.split()[:-3]) + ' '
res["selection"] = 4
if "selection" in res:
return res
#second check if there's instruction on "delete the emoji"
#or like change the emoji into xxx emoji
if re.match("^(remove|delete)( the)? emoji", tlowertrim):
res["delete"] = -1
elif tlowertrim.startswith("change the emoji to "):
query = ' '.join(tlowertrim.split()[4:])
if 'color' in query or 'skin' in query:
lastemoji = ''
for match in self.EMOJI_REGEXP.finditer(premessage):
lastemoji = premessage[match.start():match.end()]
query = lastemoji+query
emojis = self.getEmojiList(query, False)
res["query"] = query
if emojis == None or len(emojis) == 0:
res["change"] = ''
else:
res["change"] = emojis[0]
if "change" in res or "delete" in res:
return res
if tlowertrim == "read emojis":
res["show"] = 1
return res
#For emoji input, first search if there's instruction
x = re.search(r'emoji search .*?emoji', text.lower())
if x:
query = ' '.join(x[0].split()[2:])
#no punc in the query
if query.translate(self.nopunc) == query:
#query process
res["text"] = text[:x.start()].rstrip()
emojis = self.getEmojiList(query, True)
res["emojis"] = emojis
res["query"] = x[0]
res["text"] = text[:x.start()]
elif 'emoji' in text.lower():
description = ""
insertidx = -1
tmptext = text.lower()
tokens = nltk.word_tokenize(tmptext)
tags = nltk.pos_tag(tokens)
for i, tag in enumerate(tags):
if tag[0].lower() == 'insert':
insertidx = i
continue
elif tag[0].lower() == 'emoji' and i > 0:
cur_pos = tmptext.find('emoji')
if insertidx >= 0:
res["text"] += tmptext[:tmptext[:cur_pos].rfind('insert')]
if len(description) > 0:
emojis = self.getEmojiList(description +'emoji', False)
if emojis != None and len(emojis) > 0:
res["text"] += emojis[0]
tmptext = tmptext[cur_pos+6:]
description = ''
insertidx = -1
else:
#checn xxx emoji, if xxx is noun/number
if tags[i-1][1] in ['NN', 'CD', 'NNS', 'NNP', 'VBG', 'VB']:
#search for the emoji!
emojis = self.getEmojiList(tags[i-1][0]+' emoji', False)
if emojis != None and len(emojis) > 0:
res["text"] += ' '.join(tmptext[:cur_pos].split()[:-1])+' '+emojis[0]+' '
else:
res["text"] += tmptext[:cur_pos+6]
else:
res["text"] += tmptext[:cur_pos+6]
tmptext = tmptext[cur_pos+6:]
elif insertidx >= 0:
description += tag[0].lower()+' '
res["text"]+=tmptext
else:
res["text"] = text
if 'emojis' not in res: #and self.EMOJI_REGEXP.search(res["text"]) == None:
#predict semantic
inputext = premessage+' '+res["text"]
predemojis = self.ep.getPredictedEmojis(' '.join(inputext.split()[-20:]))
#get word emojis
wordemojis = self.getWordEmojis(res['text'], set(predemojis))
res["emojis"] = predemojis[:3]
# print ("pred: %s, word: %s" % (' '.join(predemojis), ' '.join(wordemojis)) )
if len(wordemojis) < 2:
res["emojis"] = predemojis[:5-len(wordemojis)]
res["emojis"] += wordemojis[:2]
if len(res['text']) > 0:
res['text'] += ' '
return res
def getWordEmojis(self, text, predemojis):
emojis = []
words = text.lower().split()
for w in words[::-1]:
if len(w) > 3 and w in self.emojikeywords:
candidates = list(set(self.emojikeywords[w]) - predemojis)
if len(candidates) == 0:
continue
emojis.append(random.choice(candidates))
return emojis
def getEmojiList(self, query, moreEmojis=False):
print("Query: %s" % query.translate(self.nopunc).replace(' ', '+'))
r = requests.get(self.gsearchURL+query.translate(self.nopunc).replace(' ', '+'))#+requote_uri(query))
urls = []
emojis = []
searchRes = r.json()
queryitems = []
if 'items' not in searchRes:
return []
for item in searchRes['items']:
if item['link'].startswith('https://emojipedia.org/search/?q'):
queryitems.append(item['link'])
else:
segs = list(filter(len, item['link'].split('/')))
#official emoji pages only have three slashes
if len(segs) != 3:
continue
metatag = item['pagemap']['metatags']
if len(metatag) > 0 and 'og:title' in metatag[0]:
emojires = self.EMOJI_REGEXP.search(metatag[0]['og:title'])
if emojires and emojires not in emojis:
emojis.append(emojires[0])
urls.append(item['link'])
for item in queryitems:
res = self.getSearchListEmojis(item, emojis)
emojis += res[0]
urls += res[1]
if len(emojis) == 0:
return None
#if not enough and we need more, we crawl related emojis
if len(emojis) < self.numemojis and moreEmojis:
moremojis = self.getRelatedEmojis(urls[0])
idx = 0
for memoji in moremojis:
if memoji not in emojis:
emojis.append(memoji)
#remove duplicate
seen = set()
seen_add = seen.add
emojis = [x for x in emojis if not (x in seen or seen_add(x))]
if emojis == None:
emojis = []
print (emojis)
return emojis
#get emojis from urls like https://emojipedia.org/search/?q=,
#the defaut search emoji pages of emojipedia
def getSearchListEmojis(self, url, emojiset):
emojis = []
urls = []
r = requests.get(url)
soup = BeautifulSoup(r.text, "html.parser")
elist = soup.select_one('.search-results')
for itm in elist.findChildren('li'):
emojires = self.EMOJI_REGEXP.search(list(itm.select_one('.emoji').strings)[0])
if not emojires or emojires in emojiset:
continue
emojis.append(emojires[0])
urls.append("https://emojipedia.org"+itm.find('a')['href'])
return [emojis, urls]
#get emojis from emoji page of emojipedia
def getRelatedEmojis(self, url):
r = requests.get(url)
# print("searching ... %s" % url)
extra_emojis = []
soup = BeautifulSoup(r.text, "html.parser")
lst = soup.select("article > h1")
if len(lst) == 0:
return []
elif len(list(soup.select("article > h1")[0].strings)) == 0:
return []
cur_emoji_desc = list(soup.select("article > h1")[0].strings)[-1]\
.lower().strip().split()
elist = soup.find('h2', text="See also").find_next("ul")
for itm in elist.findChildren('li'):
moji = list(itm.strings)[0]
moji_desc = list(itm.strings)[-1].lower()
common_words = 0
for w in cur_emoji_desc:
if w in moji_desc:
common_words += 1
extra_emojis.append([-common_words, moji])
extra_emojis = sorted(extra_emojis)
if len(extra_emojis) > 0:
return [itm[1] for itm in extra_emojis]
return []
# tp = TextProcessor(EmojiPredictor())
# print(tp.processText("","give me a sex emoji"))
# print(tp.processText("do you remember? ","yeah! I got in on time"))
# print(tp.processText("","test this sentence slash fast emoji."))
# print(tp.processText("test this sentence slash fast emoji haha"))
# print(tp.processText("","test this sentence give me a cool hat emoji"))
# print(tp.processText("test this sentence give me a fast emoji hehe"))
# print(tp.processText("test ","this car emoji sentenc a fast this cat emoji sentenc a fast this cap emoji sentenc a fast emoji"))
# print(tp.processText("test this sentence car emoji haha"))