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span_info on combined unicode characters #82

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span_info on combined unicode characters #82

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40633c9
fixes #81, lowering keywords and search sentence now works on a per c…
May 28, 2019
81a3f0a
added test case
May 3, 2020
e9f11c3
merged fuzzy matching
May 15, 2020
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33 changes: 21 additions & 12 deletions flashtext/keyword.py
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Original file line number Diff line number Diff line change
@@ -1,3 +1,4 @@
# -*- coding: utf-8 -*-
import os
import string
import io
Expand Down Expand Up @@ -80,11 +81,11 @@ def __contains__(self, word):
>>> # True

"""
if not self.case_sensitive:
word = word.lower()
current_dict = self.keyword_trie_dict
len_covered = 0
for char in word:
if not self.case_sensitive:
char = char.lower()
if char in current_dict:
current_dict = current_dict[char]
len_covered += 1
Expand All @@ -108,11 +109,11 @@ def __getitem__(self, word):
>>> keyword_processor['Big Apple']
>>> # New York
"""
if not self.case_sensitive:
word = word.lower()
current_dict = self.keyword_trie_dict
len_covered = 0
for char in word:
if not self.case_sensitive:
char = char.lower()
if char in current_dict:
current_dict = current_dict[char]
len_covered += 1
Expand Down Expand Up @@ -141,10 +142,10 @@ def __setitem__(self, keyword, clean_name=None):
clean_name = keyword

if keyword and clean_name:
if not self.case_sensitive:
keyword = keyword.lower()
current_dict = self.keyword_trie_dict
for letter in keyword:
if not self.case_sensitive:
letter = letter.lower()
current_dict = current_dict.setdefault(letter, {})
if self._keyword not in current_dict:
status = True
Expand All @@ -166,11 +167,11 @@ def __delitem__(self, keyword):
"""
status = False
if keyword:
if not self.case_sensitive:
keyword = keyword.lower()
current_dict = self.keyword_trie_dict
character_trie_list = []
for letter in keyword:
if not self.case_sensitive:
letter = letter.lower()
if letter in current_dict:
character_trie_list.append((letter, current_dict))
current_dict = current_dict[letter]
Expand Down Expand Up @@ -471,8 +472,6 @@ def extract_keywords(self, sentence, span_info=False):
if not sentence:
# if sentence is empty or none just return empty list
return keywords_extracted
if not self.case_sensitive:
sentence = sentence.lower()
current_dict = self.keyword_trie_dict
sequence_start_pos = 0
sequence_end_pos = 0
Expand All @@ -481,6 +480,8 @@ def extract_keywords(self, sentence, span_info=False):
sentence_len = len(sentence)
while idx < sentence_len:
char = sentence[idx]
if not self.case_sensitive:
char = char.lower()
# when we reach a character that might denote word end
if char not in self.non_word_boundaries:

Expand All @@ -502,6 +503,8 @@ def extract_keywords(self, sentence, span_info=False):
idy = idx + 1
while idy < sentence_len:
inner_char = sentence[idy]
if not self.case_sensitive:
inner_char = inner_char.lower()
if inner_char not in self.non_word_boundaries and self._keyword in current_dict_continued:
# update longest sequence found
longest_sequence_found = current_dict_continued[self._keyword]
Expand Down Expand Up @@ -540,6 +543,8 @@ def extract_keywords(self, sentence, span_info=False):
idy = idx + 1
while idy < sentence_len:
char = sentence[idy]
if not self.case_sensitive:
char = char.lower()
if char not in self.non_word_boundaries:
break
idy += 1
Expand Down Expand Up @@ -582,8 +587,6 @@ def replace_keywords(self, sentence):
return sentence
new_sentence = []
orig_sentence = sentence
if not self.case_sensitive:
sentence = sentence.lower()
current_word = ''
current_dict = self.keyword_trie_dict
current_white_space = ''
Expand All @@ -592,6 +595,8 @@ def replace_keywords(self, sentence):
sentence_len = len(sentence)
while idx < sentence_len:
char = sentence[idx]
if not self.case_sensitive:
char = char.lower()
current_word += orig_sentence[idx]
# when we reach whitespace
if char not in self.non_word_boundaries:
Expand All @@ -614,6 +619,8 @@ def replace_keywords(self, sentence):
idy = idx + 1
while idy < sentence_len:
inner_char = sentence[idy]
if not self.case_sensitive:
inner_char = inner_char.lower()
current_word_continued += orig_sentence[idy]
if inner_char not in self.non_word_boundaries and self._keyword in current_dict_continued:
# update longest sequence found
Expand Down Expand Up @@ -662,6 +669,8 @@ def replace_keywords(self, sentence):
idy = idx + 1
while idy < sentence_len:
char = sentence[idy]
if not self.case_sensitive:
char = char.lower()
current_word += orig_sentence[idy]
if char not in self.non_word_boundaries:
break
Expand Down