From 1e9dab08e6102383840777e61732fa8e2df78d7c Mon Sep 17 00:00:00 2001
From: David A Roberts <d@vidr.cc>
Date: Sun, 14 Aug 2016 21:46:54 +1000
Subject: [PATCH] [fix] behaviour for page_size>1 and first_page_num>0

eg. pageno=1,21,41,... instead of 20,40,60,...
---
 searx/engines/json_engine.py | 2 +-
 searx/engines/xpath.py       | 2 +-
 2 files changed, 2 insertions(+), 2 deletions(-)

diff --git a/searx/engines/json_engine.py b/searx/engines/json_engine.py
index a824c38e5..4604c3cac 100644
--- a/searx/engines/json_engine.py
+++ b/searx/engines/json_engine.py
@@ -81,7 +81,7 @@ def request(query, params):
 
     fp = {'query': query}
     if paging and search_url.find('{pageno}') >= 0:
-        fp['pageno'] = (params['pageno'] + first_page_num - 1) * page_size
+        fp['pageno'] = (params['pageno'] - 1) * page_size + first_page_num
 
     params['url'] = search_url.format(**fp)
     params['query'] = query
diff --git a/searx/engines/xpath.py b/searx/engines/xpath.py
index e701c02bf..e5c0c5bea 100644
--- a/searx/engines/xpath.py
+++ b/searx/engines/xpath.py
@@ -87,7 +87,7 @@ def request(query, params):
 
     fp = {'query': query}
     if paging and search_url.find('{pageno}') >= 0:
-        fp['pageno'] = (params['pageno'] + first_page_num - 1) * page_size
+        fp['pageno'] = (params['pageno'] - 1) * page_size + first_page_num
 
     params['url'] = search_url.format(**fp)
     params['query'] = query