From 983415bc38937a637e9b2aae191f2e087765800b Mon Sep 17 00:00:00 2001
From: potato <mail@crazypotato.tk>
Date: Tue, 6 Sep 2016 16:43:48 +0200
Subject: [PATCH] [enh] is_valid_lang moved to utils

---
 searx/engines/dictzone.py   | 20 +++-----------------
 searx/engines/translated.py | 16 +---------------
 searx/utils.py              | 15 +++++++++++++++
 3 files changed, 19 insertions(+), 32 deletions(-)

diff --git a/searx/engines/dictzone.py b/searx/engines/dictzone.py
index 2c2ec3abc..5de6c5b98 100644
--- a/searx/engines/dictzone.py
+++ b/searx/engines/dictzone.py
@@ -14,7 +14,7 @@ from urlparse import urljoin
 from lxml import html
 from cgi import escape
 from searx.engines.xpath import extract_text
-from searx.languages import language_codes
+from searx.utils import is_valid_lang
 
 categories = ['general']
 url = 'http://dictzone.com/{from_lang}-{to_lang}-dictionary/{query}'
@@ -24,20 +24,6 @@ parser_re = re.compile(u'.*?([a-z]+)-([a-z]+) ([^ ]+)$', re.I)
 results_xpath = './/table[@id="r"]/tr'
 
 
-def is_valid_lang(lang):
-    is_abbr = (len(lang) == 2)
-    if is_abbr:
-        for l in language_codes:
-            if l[0][:2] == lang.lower():
-                return (True, l[1].lower())
-        return False
-    else:
-        for l in language_codes:
-            if l[1].lower() == lang.lower():
-                return (True, l[1].lower())
-        return False
-
-
 def request(query, params):
     m = parser_re.match(unicode(query, 'utf8'))
     if not m:
@@ -51,8 +37,8 @@ def request(query, params):
     if not from_lang or not to_lang:
         return params
 
-    params['url'] = url.format(from_lang=from_lang[1],
-                               to_lang=to_lang[1],
+    params['url'] = url.format(from_lang=from_lang[2],
+                               to_lang=to_lang[2],
                                query=query)
 
     return params
diff --git a/searx/engines/translated.py b/searx/engines/translated.py
index 1b75e4f4e..3a077ae8e 100644
--- a/searx/engines/translated.py
+++ b/searx/engines/translated.py
@@ -13,7 +13,7 @@ from urlparse import urljoin
 from lxml import html
 from cgi import escape
 from searx.engines.xpath import extract_text
-from searx.languages import language_codes
+from searx.utils import is_valid_lang
 
 categories = ['general']
 url = 'http://api.mymemory.translated.net/get?q={query}' \
@@ -25,20 +25,6 @@ parser_re = re.compile(u'.*?([a-z]+)-([a-z]+) (.{2,})$', re.I)
 api_key = ''
 
 
-def is_valid_lang(lang):
-    is_abbr = (len(lang) == 2)
-    if is_abbr:
-        for l in language_codes:
-            if l[0][:2] == lang.lower():
-                return (True, l[0][:2], l[1].lower())
-        return False
-    else:
-        for l in language_codes:
-            if l[1].lower() == lang.lower():
-                return (True, l[0][:2], l[1].lower())
-        return False
-
-
 def request(query, params):
     m = parser_re.match(unicode(query, 'utf8'))
     if not m:
diff --git a/searx/utils.py b/searx/utils.py
index 744142e36..b3806d3fd 100644
--- a/searx/utils.py
+++ b/searx/utils.py
@@ -9,6 +9,7 @@ from HTMLParser import HTMLParser
 from random import choice
 
 from searx.version import VERSION_STRING
+from searx.languages import language_codes
 from searx import settings
 from searx import logger
 
@@ -255,3 +256,17 @@ def get_torrent_size(filesize, filesize_multiplier):
         filesize = None
 
     return filesize
+
+
+def is_valid_lang(lang):
+    is_abbr = (len(lang) == 2)
+    if is_abbr:
+        for l in language_codes:
+            if l[0][:2] == lang.lower():
+                return (True, l[0][:2], l[1].lower())
+        return False
+    else:
+        for l in language_codes:
+            if l[1].lower() == lang.lower():
+                return (True, l[0][:2], l[1].lower())
+        return False