Markdown support

app/build.gradle

@@ -85,6 +85,8 @@ android {
         }
     }
     configurations {
+        cleanedAnnotations
+        implementation.exclude group: 'org.jetbrains', module: 'annotations'
         all {
             exclude group: 'androidx.lifecycle', module: 'lifecycle-viewmodel-ktx'
         }
@@ -186,6 +188,9 @@ dependencies {
 
 
     implementation 'io.noties.markwon:core:4.6.2'
+    implementation 'io.noties.markwon:ext-tables:4.6.2'
+    implementation 'io.noties.markwon:syntax-highlight:4.6.2'
+    annotationProcessor 'io.noties:prism4j-bundler:2.0.0'
 
     //************ CAST **************///
 

app/src/main/java/app/fedilab/android/MainApplication.java

@@ -42,7 +42,9 @@ import java.util.Objects;
 import app.fedilab.android.mastodon.helper.ThemeHelper;
 import app.fedilab.android.peertube.services.GlobalUploadObserver;
 import es.dmoral.toasty.Toasty;
+import io.noties.prism4j.annotations.PrismBundle;
 
+@PrismBundle(includeAll = true, grammarLocatorClassName = ".MySuperGrammerLocator")
 
 public class MainApplication extends MultiDexApplication {
 

app/src/main/java/app/fedilab/android/mastodon/client/entities/app/MarkdownConverter.java

@@ -37,5 +37,15 @@ public class MarkdownConverter {
         public String code;
         public int position;
         public URLSpan urlSpan;
+
+        public int regexPosition(List<MarkdownItem> markdownItems) {
+            int position = 0;
+            for (MarkdownItem markdownItem : markdownItems) {
+                if (markdownItem.code.equals(code) && position <= this.position) {
+                    position++;
+                }
+            }
+            return position;
+        }
     }
 }

app/src/main/java/app/fedilab/android/mastodon/helper/SpannableHelper.java

@@ -43,6 +43,7 @@ import android.view.View;
 import android.webkit.URLUtil;
 import android.widget.Toast;
 
+import androidx.annotation.ColorInt;
 import androidx.annotation.NonNull;
 import androidx.appcompat.app.AlertDialog;
 import androidx.core.content.ContextCompat;
@@ -71,6 +72,7 @@ import java.util.regex.Pattern;
 import javax.net.ssl.HttpsURLConnection;
 
 import app.fedilab.android.BaseMainActivity;
+import app.fedilab.android.MySuperGrammerLocator;
 import app.fedilab.android.R;
 import app.fedilab.android.activities.MainActivity;
 import app.fedilab.android.databinding.PopupLinksBinding;
@@ -89,6 +91,10 @@ import app.fedilab.android.mastodon.ui.drawer.StatusAdapter;
 import app.fedilab.android.mastodon.viewmodel.mastodon.FiltersVM;
 import es.dmoral.toasty.Toasty;
 import io.noties.markwon.Markwon;
+import io.noties.markwon.ext.tables.TablePlugin;
+import io.noties.markwon.syntax.Prism4jThemeDefault;
+import io.noties.markwon.syntax.SyntaxHighlightPlugin;
+import io.noties.prism4j.Prism4j;
 
 public class SpannableHelper {
 
@@ -149,8 +155,10 @@ public class SpannableHelper {
         } else {
             initialContent = new SpannableString(text);
         }
-
+        boolean markdownSupport = sharedpreferences.getBoolean(context.getString(R.string.SET_MARKDOWN_SUPPORT), true);
         //Get all links
+        SpannableStringBuilder content;
+        if (markdownSupport) {
             MarkdownConverter markdownConverter = new MarkdownConverter();
             markdownConverter.markdownItems = new ArrayList<>();
             int next;
@@ -173,20 +181,30 @@ public class SpannableHelper {
                     position++;
                 }
             }
-        final Markwon markwon = Markwon.create(context);
+
+            final Markwon markwon = Markwon.builder(context)
+                    .usePlugin(TablePlugin.create(context))
+                    .usePlugin(SyntaxHighlightPlugin.create(new Prism4j(new MySuperGrammerLocator()), Prism4jThemeDefault.create())).build();
 
             final Spanned markdown = markwon.toMarkdown(initialContent.toString());
-        SpannableStringBuilder content = new SpannableStringBuilder(markdown);
+            content = new SpannableStringBuilder(markdown);
             position = 0;
             for (MarkdownConverter.MarkdownItem markdownItem : markdownConverter.markdownItems) {
                 Pattern p = Pattern.compile("(" + Pattern.quote(markdownItem.code) + ")", Pattern.CASE_INSENSITIVE);
                 Matcher m = p.matcher(content);
+                int fetchPosition = 1;
                 while (m.find()) {
+                    int regexPosition = markdownItem.regexPosition(markdownConverter.markdownItems);
+                    if (regexPosition == fetchPosition) {
                         content.setSpan(markdownItem.urlSpan, m.start(), m.end(), Spanned.SPAN_INCLUSIVE_EXCLUSIVE);
                     }
+                    fetchPosition++;
+                }
                 position++;
             }
-
+        } else {
+            content = new SpannableStringBuilder(initialContent);
+        }
 
         URLSpan[] urls = content.getSpans(0, (content.length() - 1), URLSpan.class);
         //Loop through links
@@ -336,6 +354,23 @@ public class SpannableHelper {
         return trimSpannable(new SpannableStringBuilder(content));
     }
 
+    public interface Prism4jTheme {
+
+        @ColorInt
+        int background();
+
+        @ColorInt
+        int textColor();
+
+        void apply(
+                @NonNull String language,
+                @NonNull Prism4j.Syntax syntax,
+                @NonNull SpannableStringBuilder builder,
+                int start,
+                int end
+        );
+    }
+
 
     private static void makeLinks(Context context, SpannableStringBuilder content, String url, int start, int end) {
         String newUrl = url;

app/src/main/res/values/strings.xml

@@ -1156,6 +1156,7 @@
 
     <string name="SET_GROUP_REBLOGS" translatable="false">SET_GROUP_REBLOGS</string>
     <string name="SET_BOOST_ORIGINAL_DATE" translatable="false">SET_BOOST_ORIGINAL_DATE</string>
+    <string name="SET_MARKDOWN_SUPPORT" translatable="false">SET_MARKDOWN_SUPPORT</string>
     <string name="SET_TRUNCATE_LINKS" translatable="false">SET_TRUNCATE_LINKS</string>
     <string name="SET_TRUNCATE_LINKS_MAX" translatable="false">SET_TRUNCATE_LINKS_MAX</string>
 
@@ -1907,6 +1908,7 @@
     <string name="also_followed_by">Followed by:</string>
     <string name="Directory">Directory</string>
     <string name="boost_original_date">Display original date for boosts</string>
+    <string name="markdown_support">Markdown support</string>
     <string name="set_disable_release_notes">Disable release notes</string>
     <string name="set_disable_release_notes_indication">When a new version is published, you will not be alerted inside the app.</string>
     <string name="formula">Formula</string>

app/src/main/res/xml/pref_timelines.xml

@@ -50,6 +50,13 @@
         app:singleLineTitle="false"
         app:title="@string/boost_original_date" />
 
+    <SwitchPreferenceCompat
+        android:defaultValue="true"
+        app:iconSpaceReserved="false"
+        app:key="@string/SET_MARKDOWN_SUPPORT"
+        app:singleLineTitle="false"
+        app:title="@string/markdown_support" />
+
     <SwitchPreferenceCompat
         android:defaultValue="true"
         app:iconSpaceReserved="false"