Merge pull request #400 from AndreyKozhev/text_symbols

Add Symbols for text and other files (fix the problem when SymbolInputView does not display anything)

app/src/main/java/com/itsaky/androidide/utils/Symbols.java

@@ -36,8 +36,8 @@ public static Symbol[] forFile(@Nullable File file) {
       if (file.getName().endsWith(".java")
           || file.getName().endsWith(".gradle")
           || file.getName().endsWith(".kt")) return javaSymbols();
-
-      if (file.getName().endsWith(".xml")) return xmlSymbols();
+      else if (file.getName().endsWith(".xml")) return xmlSymbols();
+      else return plainTextSymbols();
     }
 
     return new Symbol[0];
@@ -99,6 +99,33 @@ public static Symbol[] xmlSymbols() {
     };
   }
 
+  public static Symbol[] plainTextSymbols() {
+    return new Symbol[] {
+      new Symbol("↹", "\t"),
+      new Symbol("{", "{}"),
+      new Symbol("}"),
+      new Symbol("(", "()"),
+      new Symbol(")"),
+      new Symbol("="),
+      new Symbol("\"", "\"\""),
+      new Symbol("'", "''"),
+      new Symbol("|"),
+      new Symbol("&"),
+      new Symbol("!"),
+      new Symbol("[", "[]"),
+      new Symbol("]"),
+      new Symbol("<", "<>"),
+      new Symbol(">"),
+      new Symbol("+"),
+      new Symbol("-"),
+      new Symbol("/"),
+      new Symbol("~"),
+      new Symbol("`"),
+      new Symbol(":"),
+      new Symbol("_")
+    };
+  }
+
   public static String createTabSpaces() {
     int size = EditorPreferencesKt.getTabSize();
     StringBuilder tab = new StringBuilder();