Fix engine detection on old Qwant iOS versions. (#7567)

* Fix engine detection on old Qwant iOS versions.
* Fix a test case I missed.
* Add a separate regex for Chromium Qwant.
* Set Qwant family to null since it could be either Chrome or Firefox.
---------
Co-authored-by: Tutik Alexsandr <sanchezzzhak@ya.ru>

Parser/Client/Browser.php

@@ -640,8 +640,8 @@ class Browser extends AbstractClientParser
             'AX', 'BI', 'BF', 'BH', 'BN', 'C0', 'CU', 'EI', 'F1',
             'FB', 'FE', 'FF', 'FM', 'FR', 'FY', 'GZ', 'I4', 'IF',
             'IW', 'LH', 'LY', 'MB', 'MN', 'MO', 'MY', 'OA', 'OS',
-            'PI', 'PX', 'QA', 'QM', 'S5', 'SX', 'TF', 'TO', 'WF',
-            'ZV', 'FP', 'AD', 'WL',
+            'PI', 'PX', 'QA', 'S5', 'SX', 'TF', 'TO', 'WF', 'ZV',
+            'FP', 'AD', 'WL',
         ],
         'Internet Explorer'  => ['BZ', 'CZ', 'IE', 'IM', 'PS'],
         'Konqueror'          => ['KO'],

Tests/Parser/Client/fixtures/browser.yml

@@ -1852,7 +1852,7 @@
     version: "2.5"
     engine: Gecko
     engine_version: "63.0"
-    family: Firefox
+    family: null
 -
   user_agent: Mozilla/5.0 (Macintosh; PPC Mac OS X 10.5; FPR10; rv:45.0) Gecko/20100101 Firefox/45.0 TenFourFox/G5
   client:
@@ -2012,9 +2012,9 @@
     type: browser
     name: Qwant Mobile
     version: "1.3"
-    engine: Gecko
-    engine_version: ""
-    family: Firefox
+    engine: WebKit
+    engine_version: "604.1.38"
+    family: null
 -
   user_agent: Mozilla/5.0 (iPhone; CPU iPhone OS 7_1_1 like Mac OS X) AppleWebKit/537.51.2 (KHTML, like Gecko) OPiOS/8.0.1.80062 Mobile/11D201 Safari/9537.53
   client:
@@ -2786,9 +2786,9 @@
     type: browser
     name: Qwant Mobile
     version: "1.1"
-    engine: Gecko
-    engine_version: ""
-    family: Firefox
+    engine: Blink
+    engine_version: "53.0.2785.143"
+    family: null
 -
   user_agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Sizzy/0.0.21 Chrome/73.0.3683.121 Electron/5.0.2 Safari/537.36
   client:
@@ -3553,7 +3553,7 @@
     version: 2.4.1
     engine: WebKit
     engine_version: 603.3.8
-    family: Firefox
+    family: null
 -
   user_agent: Mozilla/5.0 (X11; HasCodingOs 1.0; Linux x64) AppleWebKit/637.36 (KHTML, like Gecko) Chrome/70.0.3112.101 Safari/637.36 HasBrowser/5.0
   client:

Tests/fixtures/smartphone-2.yml

@@ -214,7 +214,7 @@
     brand: Apple
     model: iPhone
   os_family: iOS
-  browser_family: Firefox
+  browser_family: Unknown
 -
   user_agent: Mozilla/5.0 (iPhone; U; CPU iPhone OS 3_1_2 like Mac OS X; de-de) AppleWebKit/528.18 (KHTML, like Gecko) Version/4.0 Mobile/7D11 Safari/528.16
   os:

Tests/fixtures/smartphone.yml

@@ -106,7 +106,7 @@
     brand: ""
     model: ""
   os_family: Android
-  browser_family: Firefox
+  browser_family: Unknown
 -
   user_agent: Mozilla/5.0 (Linux; Android 6.0.1) AppleWebKit/537.36 (KHTML, like Gecko) Version/4.0 Web Explorer/2.6.1 Chrome/74.0.3729.157 Mobile Safari/537.36
   os:
@@ -178,7 +178,7 @@
     brand: ""
     model: ""
   os_family: Android
-  browser_family: Firefox
+  browser_family: Unknown
 -
   user_agent: Mozilla/5.0 (Linux; Android 9) AppleWebKit/537.36 (KHTML, like Gecko) Version/4.0 Chrome/77.0.3865.92 Mobile Safari/537.36 DuckDuckGo/5
   os:

regexes/client/browsers.yml

@@ -1150,11 +1150,16 @@
   version: '$1'
   engine:
     default: 'WebKit'
+- regex: 'Chrome/.*QwantMobile(?:/(\d+[\.\d]+))?'
+  name: 'Qwant Mobile'
+  version: '$1'
+  engine:
+    default: 'Blink'
 - regex: 'QwantMobile(?:/(\d+[\.\d]+))?'
   name: 'Qwant Mobile'
   version: '$1'
   engine:
-    default: 'Gecko'
+    default: '' # multiple (Gecko on Android, WebKit on iOS)
 - regex: 'Qwant/(\d+[\.\d]+)'
   name: 'Qwant Mobile'
   version: '$1'