From 29d7b476547513500d815e6e378c1f635e30557c Mon Sep 17 00:00:00 2001
From: zharkovstas <zharkovstas@skbkontur.ru>
Date: Sun, 19 May 2019 04:26:10 +0500
Subject: [PATCH] add stemmer for streets

---
 app.py     |  4 +++-
 stemmer.py | 26 ++++++++++++++++++++++++++
 2 files changed, 29 insertions(+), 1 deletion(-)
 create mode 100644 stemmer.py

diff --git a/app.py b/app.py
index 5b1d710..2ac3993 100644
--- a/app.py
+++ b/app.py
@@ -9,9 +9,11 @@ from string_formats import choose_numeral_form
 from osm.osm import describe_objects
 
 from yandex import get_text_by_coordinates
+from stemmer import stemming
 
 import itertools
 import bottle
+import re
 
 cities = {
     "Екатеринбург": (56.807556, 56.847826, 60.570744, 60.657791),
@@ -72,7 +74,7 @@ def add_tips(game):
         success, summary = parse_summary(
             s['name'].replace('улица', '').replace('проспект', '').replace('переулок', '').strip())
 
-        if success and 'улица' not in summary:
+        if success and 'улица' not in summary and not re.search(stemming(s['name']), stemming(summary), re.IGNORECASE):
             game.tips.append(f'{summary.capitalize()}. Это как-то связано с названием ближайшей улицы 🤔')
 
     buildings = near_objects['buildings']
diff --git a/stemmer.py b/stemmer.py
new file mode 100644
index 0000000..0f473a6
--- /dev/null
+++ b/stemmer.py
@@ -0,0 +1,26 @@
+import snowballstemmer
+stemmer = snowballstemmer.stemmer('russian');
+import sys, re
+bad_characters_regex = re.compile(r'[^a-zа-я0-9-+,.;"\'()/!?\s]')
+punctuation_regex = re.compile(r'[-+,.;"\'()/!?]')
+many_spaces_regex = re.compile(r' +')
+
+def normalize(line):
+    result = line.lower()
+    result = result.replace('ё', 'е')
+    result = re.sub(punctuation_regex, ' \g<0> ', result)
+    result = re.sub(bad_characters_regex, ' ', result)
+    result = re.sub(many_spaces_regex, ' ', result)
+
+    return result.strip()
+
+
+def stemming(word):
+    return stemmer.stemWord(word)
+
+def text_stemming(text):
+    normilized_text = normalize(text)
+    return ' '.join(stemmer.stemWords(normilized_text.split()))
+
+
+print(text_stemming('Народной воли'))
\ No newline at end of file
-- 
2.50.1