Add new schemas to validate fonts.cfg and language.cfg

data/languages/en_US.cfg

@@ -2,4 +2,5 @@
     name="English (US)"
     locale=en_US
     alternates=C, en_PH
+    percent=100
 [/locale]

data/schema/fonts.cfg

@@ -0,0 +1,15 @@
+{./macros.cfg}
+[wml_schema]
+    [tag]
+        name="root"
+        [tag]
+            name="fonts"
+            min=1
+            max=1
+            {REQUIRED_KEY family_order t_string}
+            {REQUIRED_KEY family_order_light t_string}
+            {REQUIRED_KEY family_order_monospace t_string}
+            {REQUIRED_KEY family_order_script t_string}
+        [/tag]
+    [/tag]
+[/wml_schema]

data/schema/languages.cfg

@@ -0,0 +1,28 @@
+{./macros.cfg}
+[wml_schema]
+    {./types/basic.cfg}
+    {./types/lists.cfg}
+    [type]
+        name="locale"
+        value=<<[a-z]{2,4}(_[A-Z]{2}|_\d{3})?(@[a-z]+)?|C>>
+    [/type]
+    [type]
+        name="textdir"
+        value="ltr|rtl"
+    [/type]
+    {LIST_TYPE locale}
+    [tag]
+        name="root"
+        [tag]
+            name="locale"
+            min=1
+            max=infinite
+            {REQUIRED_KEY name string}
+            {REQUIRED_KEY locale locale}
+            {REQUIRED_KEY percent unsigned}
+            {DEFAULT_KEY dir textdir ltr}
+            {SIMPLE_KEY sort_name string}
+            {SIMPLE_KEY alternates locale_list}
+        [/tag]
+    [/tag]
+[/wml_schema]

utils/CI/schema_validation.sh

@@ -83,6 +83,8 @@ validate_schema "GUI2/Lua"     "gui_window"   || RET=1
 validate_schema "Server Pbl"   "pbl"          || RET=1
 validate_schema "WML Diff"     "diff"         || RET=1
 validate_schema "Achievements" "achievements" || RET=1
+validate_schema "Fonts"        "fonts"        || RET=1
+validate_schema "Languages"    "languages"    || RET=1
 
 validate_core "Core" || RET=1
 
@@ -93,6 +95,9 @@ for gui in $(find data/modifications -path "*/gui/*.cfg"); do
     validate_dialog "modification $name" $gui || RET=1
 done
 
+validate "Fonts" ./wesnoth --validate=data/hardwired/fonts.cfg --use-schema=data/schema/fonts.cfg
+validate "Languages" ./wesnoth --validate=data/hardwired/language.cfg --use-schema=data/schema/languages.cfg
+
 validate_misc "Editor"         "EDITOR"                                  || RET=1
 validate_misc "Multiplayer"    "MULTIPLAYER,MULTIPLAYER_A_NEW_LAND_LOAD" || RET=1
 validate_misc "Test"           "TEST"                                    || RET=1