fixed some Katakana words not being displayed correctly when filtering is on

app/src/main/java/io/github/sspanak/tt9/ime/modes/ModeIdeograms.java

@@ -31,6 +31,7 @@ public class ModeIdeograms extends ModeWords {
 
 	@Override protected String adjustSuggestionTextCase(String word, int newTextCase) { return word; }
 	@Override public void determineNextWordTextCase() {}
+	@Override public boolean nextTextCase() { return false; }
 
 
 	@Override

app/src/main/java/io/github/sspanak/tt9/ime/modes/ModeKanji.java

@@ -1,7 +1,10 @@
 package io.github.sspanak.tt9.ime.modes;
 
+import androidx.annotation.NonNull;
 import androidx.annotation.Nullable;
 
+import java.util.ArrayList;
+
 import io.github.sspanak.tt9.hacks.InputType;
 import io.github.sspanak.tt9.ime.helpers.TextField;
 import io.github.sspanak.tt9.languages.Language;
@@ -14,11 +17,29 @@ public class ModeKanji extends ModePinyin {
 		NAME = language.getName().replace(" / ローマ字", "");
 	}
 
+
+	@NonNull
 	@Override
-	public boolean validateLanguage(@Nullable Language newLanguage) {
+	public ArrayList<String> getSuggestions() {
-		return LanguageKind.isJapanese(newLanguage);
+		ArrayList<String> newSuggestions = new ArrayList<>();
+		for (String s : suggestions) {
+			// "Ql" is the transcription of "—" in the database, as defined in Japanese.yml. However, this
+			// has only technical meaning. When displaying the suggestions, we want to show "—" for better
+			// readability.
+			newSuggestions.add(s.replaceAll("Ql", "—"));
+		}
+
+		return newSuggestions;
 	}
 
+
+	@Override
+	public boolean onReplaceSuggestion(@NonNull String word) {
+		// revert to the transcription, so that filtering works correctly
+		return super.onReplaceSuggestion(word.replaceAll("—", "Ql"));
+	}
+
+
 	@Override
 	public boolean shouldAcceptPreviousSuggestion(int nextKey, boolean hold) {
 		if (digitSequence.isEmpty()) {
@@ -32,4 +53,10 @@ public class ModeKanji extends ModePinyin {
 
 		return super.shouldAcceptPreviousSuggestion(nextKey, hold);
 	}
+
+
+	@Override
+	public boolean validateLanguage(@Nullable Language newLanguage) {
+		return LanguageKind.isJapanese(newLanguage);
+	}
 }

app/src/main/java/io/github/sspanak/tt9/ui/tray/SuggestionsBar.java

@@ -183,11 +183,12 @@ public class SuggestionsBar {
 
 	@NonNull
 	public String getRaw(int id) {
-		if (id < 0 || id >= visibleSuggestions.size()) {
+		final int index = containsStem() ? id - 1 : id;
+		if (index < 0 || suggestions == null || index >= suggestions.size()) {
 			return "";
 		}
 
-		return visibleSuggestions.get(id);
+		return suggestions.get(index);
 	}