Unused lang tool

.gitignore

@@ -122,3 +122,6 @@ debian/ppsspp/
 
 # CMake stuff
 CMakeFiles
+
+# Clangd 
+.cache/

Tools/langtool/unused-euristic.sh

@@ -0,0 +1,29 @@
+#!/bin/bash
+
+langfile='../../assets/lang/en_US.ini'
+folders=('../../UI/' '../../Core/' '../../Common/' '../../Windows/' '../../assets/shaders' '../../assets/themes')
+
+# reading each line
+while read line; do
+    # skip empty line, section and comment
+    if [[ ! -z "$line" && ${line::1} != "[" && ${line::1} != "#" ]]; then
+        # get everything before the = sign
+        value=${line/ =*/}
+
+        found=0
+        for folder in ${folders[@]}; do
+            # use recursive grep on the folder
+            grep -r "$value" $folder > /dev/null
+            # check return value
+            ret=$?
+            if [ $ret -eq 0 ]; then
+                found=1
+            fi
+        done
+
+        # print if not found
+        if [ $found -eq 0 ]; then
+            echo $value
+        fi
+    fi
+done < $langfile