add plains as exception to english_singular and english_plural

CMakeSettings.json

@@ -1,5 +1,23 @@
 {
   "configurations": [
+    {
+      "name": "x64-Release-static",
+      "generator": "Ninja",
+      "configurationType": "Release",
+      "buildRoot": "${projectDir}\\out\\build\\${name}",
+      "installRoot": "${projectDir}\\out\\install\\${name}",
+      "cmakeCommandArgs": "-DVCPKG_TARGET_TRIPLET=x64-windows-static",
+      "buildCommandArgs": "-v",
+      "ctestCommandArgs": "",
+      "inheritEnvironments": [ "msvc_x64_x64" ],
+      "variables": [
+        {
+          "name": "VCPKG_MANIFEST_FEATURES",
+          "value": "fonts",
+          "type": "STRING"
+        }
+      ]
+    },
     {
       "name": "x86-Debug",
       "generator": "Ninja",
@@ -54,24 +72,6 @@
       "buildCommandArgs": "-v",
       "ctestCommandArgs": "",
       "inheritEnvironments": [ "msvc_x86" ]
-    },
-    {
-      "name": "x64-Release-static",
-      "generator": "Ninja",
-      "configurationType": "Release",
-      "buildRoot": "${projectDir}\\out\\build\\${name}",
-      "installRoot": "${projectDir}\\out\\install\\${name}",
-      "cmakeCommandArgs": "-DVCPKG_TARGET_TRIPLET=x64-windows-static",
-      "buildCommandArgs": "-v",
-      "ctestCommandArgs": "",
-      "inheritEnvironments": [ "msvc_x64_x64" ],
-      "variables": [
-        {
-          "name": "VCPKG_MANIFEST_FEATURES",
-          "value": "fonts",
-          "type": "STRING"
-        }
-      ]
     }
   ]
 }

src/script/functions/english.cpp

@@ -153,6 +153,7 @@ SCRIPT_FUNCTION(english_number_ordinal) {
 // ----------------------------------------------------------------------------- : Singular/plural
 
 String english_singular(const String& str) {
+  if (str.Lower() == _("plains")) return str;
   if (str.size() > 3 && is_substr(str, str.size()-3, _("ies"))) {
     return str.substr(0, str.size() - 3) + _("y");
   } else if (str.size() > 3 && is_substr(str, str.size()-3, _("oes"))) {
@@ -174,6 +175,7 @@ String english_singular(const String& str) {
   }
 }
 String english_plural(const String& str) {
+  if (str.Lower() == _("plains")) return str;
   if (str.size() > 2) {
     Char a = str.GetChar(str.size() - 2);
     Char b = str.GetChar(str.size() - 1);