fixed again Backspace swiping deleting too many characters

app/src/main/java/io/github/sspanak/tt9/ui/main/keys/SoftKeyBackspace.java

@@ -1,6 +1,7 @@
 package io.github.sspanak.tt9.ui.main.keys;
 
 import android.content.Context;
+import android.os.Handler;
 import android.util.AttributeSet;
 import android.view.KeyEvent;
 
@@ -11,6 +12,7 @@ import io.github.sspanak.tt9.ui.Vibration;
 
 public class SoftKeyBackspace extends SwipeableKey {
 	private int repeat = 0;
+	private final Handler waitForSwipe = new Handler();
 
 	public SoftKeyBackspace(Context context) {
 		super(context);
@@ -61,7 +63,15 @@ public class SoftKeyBackspace extends SwipeableKey {
 	@Override
 	final protected boolean handlePress() {
 		super.handlePress();
-		return deleteText();
+		waitForSwipe.postDelayed(this::handlePressDebounced, 15);
+		return true;
+	}
+
+
+	private void handlePressDebounced() {
+		if (notSwiped()) {
+			deleteText();
+		}
 	}
 
 
@@ -80,6 +90,12 @@ public class SoftKeyBackspace extends SwipeableKey {
 	}
 
 
+	@Override
+	protected void handleStartSwipeX(float position, float delta) {
+		waitForSwipe.removeCallbacksAndMessages(null);
+	}
+
+
 	@Override
 	protected void handleEndSwipeX(float position, float delta) {
 		if (validateTT9Handler()) {
@@ -88,16 +104,13 @@ public class SoftKeyBackspace extends SwipeableKey {
 	}
 
 
-	private boolean deleteText() {
+	private void deleteText() {
 		if (validateTT9Handler() && !tt9.onBackspace(repeat)) {
 			// Limited or special numeric field (e.g. formatted money or dates) cannot always return
 			// the text length, therefore onBackspace() seems them as empty and does nothing. This results
 			// in fallback to the default hardware key action. Here we simulate the hardware BACKSPACE.
 			tt9.sendDownUpKeyEvents(KeyEvent.KEYCODE_DEL);
-			return true;
 		}
-
-		return false;
 	}
 
 

app/src/main/java/io/github/sspanak/tt9/util/Text.java

@@ -175,12 +175,13 @@ public class Text extends TextTools {
 		boolean endsWithWhitespaceBlock = Character.isWhitespace(lastChar) && Character.isWhitespace(penultimateChar);
 		boolean endsWithPunctuationBlock = (lastChar == '.' || lastChar == ',') && (penultimateChar == '.' || penultimateChar == ',');
 
-		for (int i = text.length() - 1; i >= 0; i--) {
+		for (int i = text.length() - 1, firstChar = 1; i >= 0; i--, firstChar = 0) {
 			char currentChar = text.charAt(i);
+
 			if (
 				(endsWithPunctuationBlock && currentChar != '.' && currentChar != ',')
 				|| (endsWithWhitespaceBlock && !Character.isWhitespace(currentChar))
-				|| (!endsWithWhitespaceBlock && !endsWithPunctuationBlock && (Character.isWhitespace(currentChar) || currentChar == '.' || currentChar == ','))
+				|| (!endsWithWhitespaceBlock && !endsWithPunctuationBlock && firstChar == 0 && Character.isWhitespace(currentChar))
 			) {
 				return i + 1;
 			}