Add custom superscript processor

app/build.gradle

@@ -153,6 +153,7 @@ dependencies {
     implementation "io.noties.markwon:linkify:$markwonVersion"
     implementation "io.noties.markwon:recycler-table:$markwonVersion"
     implementation "io.noties.markwon:simple-ext:$markwonVersion"
+    implementation "io.noties.markwon:html:$markwonVersion"
     implementation "io.noties.markwon:inline-parser:$markwonVersion"
     implementation 'com.atlassian.commonmark:commonmark-ext-gfm-tables:0.14.0'
     implementation 'me.saket:better-link-movement-method:2.2.0'

app/src/main/java/ml/docilealligator/infinityforreddit/activities/CommentActivity.java

@@ -50,6 +50,8 @@ import io.noties.markwon.Markwon;
 import io.noties.markwon.MarkwonConfiguration;
 import io.noties.markwon.core.MarkwonTheme;
 import io.noties.markwon.ext.strikethrough.StrikethroughPlugin;
+import io.noties.markwon.html.HtmlPlugin;
+import io.noties.markwon.html.tag.SuperScriptHandler;
 import io.noties.markwon.inlineparser.HtmlInlineProcessor;
 import io.noties.markwon.inlineparser.MarkwonInlineParserPlugin;
 import io.noties.markwon.linkify.LinkifyPlugin;
@@ -68,7 +70,9 @@ import ml.docilealligator.infinityforreddit.comment.SendComment;
 import ml.docilealligator.infinityforreddit.customtheme.CustomThemeWrapper;
 import ml.docilealligator.infinityforreddit.customviews.LinearLayoutManagerBugFixed;
 import ml.docilealligator.infinityforreddit.events.SwitchAccountEvent;
+import ml.docilealligator.infinityforreddit.utils.ProcessRedditSuperscript;
 import ml.docilealligator.infinityforreddit.utils.SharedPreferencesUtils;
+import ml.docilealligator.infinityforreddit.utils.SuperscriptInlineProcessor;
 import ml.docilealligator.infinityforreddit.utils.Utils;
 import retrofit2.Retrofit;
 
@@ -163,7 +167,12 @@ public class CommentActivity extends BaseActivity implements UploadImageEnabledA
         Markwon markwon = Markwon.builder(this)
                 .usePlugin(MarkwonInlineParserPlugin.create(plugin -> {
                     plugin.excludeInlineProcessor(HtmlInlineProcessor.class);
+                    plugin.addInlineProcessor(new SuperscriptInlineProcessor());
                 }))
+                .usePlugin(HtmlPlugin.create(plugin -> {
+                    plugin.excludeDefaults(true).addHandler(new SuperScriptHandler());
+                }))
+                .usePlugin(new ProcessRedditSuperscript())
                 .usePlugin(new AbstractMarkwonPlugin() {
                     @Override
                     public void configureConfiguration(@NonNull MarkwonConfiguration.Builder builder) {
@@ -206,7 +215,12 @@ public class CommentActivity extends BaseActivity implements UploadImageEnabledA
             Markwon postBodyMarkwon = Markwon.builder(this)
                     .usePlugin(MarkwonInlineParserPlugin.create(plugin -> {
                         plugin.excludeInlineProcessor(HtmlInlineProcessor.class);
+                        plugin.addInlineProcessor(new SuperscriptInlineProcessor());
                     }))
+                    .usePlugin(HtmlPlugin.create(plugin -> {
+                        plugin.excludeDefaults(true).addHandler(new SuperScriptHandler());
+                    }))
+                    .usePlugin(new ProcessRedditSuperscript())
                     .usePlugin(new AbstractMarkwonPlugin() {
                         @Override
                         public void beforeSetText(@NonNull TextView textView, @NonNull Spanned markdown) {

app/src/main/java/ml/docilealligator/infinityforreddit/activities/FullMarkdownActivity.java

@@ -47,6 +47,8 @@ import io.noties.markwon.Markwon;
 import io.noties.markwon.MarkwonConfiguration;
 import io.noties.markwon.core.MarkwonTheme;
 import io.noties.markwon.ext.strikethrough.StrikethroughPlugin;
+import io.noties.markwon.html.HtmlPlugin;
+import io.noties.markwon.html.tag.SuperScriptHandler;
 import io.noties.markwon.inlineparser.HtmlInlineProcessor;
 import io.noties.markwon.inlineparser.MarkwonInlineParserPlugin;
 import io.noties.markwon.linkify.LinkifyPlugin;
@@ -59,7 +61,9 @@ import ml.docilealligator.infinityforreddit.customtheme.CustomThemeWrapper;
 import ml.docilealligator.infinityforreddit.customviews.LinearLayoutManagerBugFixed;
 import ml.docilealligator.infinityforreddit.customviews.MarkwonLinearLayoutManager;
 import ml.docilealligator.infinityforreddit.events.SwitchAccountEvent;
+import ml.docilealligator.infinityforreddit.utils.ProcessRedditSuperscript;
 import ml.docilealligator.infinityforreddit.utils.SharedPreferencesUtils;
+import ml.docilealligator.infinityforreddit.utils.SuperscriptInlineProcessor;
 
 public class FullMarkdownActivity extends BaseActivity {
 
@@ -134,8 +138,14 @@ public class FullMarkdownActivity extends BaseActivity {
         Markwon markwon = Markwon.builder(this)
                 .usePlugin(MarkwonInlineParserPlugin.create(plugin -> {
                     plugin.excludeInlineProcessor(HtmlInlineProcessor.class);
+                    plugin.addInlineProcessor(new SuperscriptInlineProcessor());
                 }))
+                .usePlugin(HtmlPlugin.create(plugin -> {
+                    plugin.excludeDefaults(true).addHandler(new SuperScriptHandler());
+                }))
+                .usePlugin(new ProcessRedditSuperscript())
                 .usePlugin(new AbstractMarkwonPlugin() {
+                    /*
                     @NonNull
                     @Override
                     public String processMarkdown(@NonNull String markdown) {
@@ -151,7 +161,7 @@ public class FullMarkdownActivity extends BaseActivity {
                         }
                         return super.processMarkdown(markdownStringBuilder.toString());
                     }
-
+                    */
                     @Override
                     public void afterSetText(@NonNull TextView textView) {
                         textView.setHighlightColor(Color.TRANSPARENT);

app/src/main/java/ml/docilealligator/infinityforreddit/activities/WikiActivity.java

@@ -51,6 +51,8 @@ import io.noties.markwon.Markwon;
 import io.noties.markwon.MarkwonConfiguration;
 import io.noties.markwon.core.MarkwonTheme;
 import io.noties.markwon.ext.strikethrough.StrikethroughPlugin;
+import io.noties.markwon.html.HtmlPlugin;
+import io.noties.markwon.html.tag.SuperScriptHandler;
 import io.noties.markwon.inlineparser.HtmlInlineProcessor;
 import io.noties.markwon.inlineparser.MarkwonInlineParserPlugin;
 import io.noties.markwon.linkify.LinkifyPlugin;
@@ -65,7 +67,9 @@ import ml.docilealligator.infinityforreddit.customviews.LinearLayoutManagerBugFi
 import ml.docilealligator.infinityforreddit.customviews.MarkwonLinearLayoutManager;
 import ml.docilealligator.infinityforreddit.events.SwitchAccountEvent;
 import ml.docilealligator.infinityforreddit.utils.JSONUtils;
+import ml.docilealligator.infinityforreddit.utils.ProcessRedditSuperscript;
 import ml.docilealligator.infinityforreddit.utils.SharedPreferencesUtils;
+import ml.docilealligator.infinityforreddit.utils.SuperscriptInlineProcessor;
 import retrofit2.Call;
 import retrofit2.Callback;
 import retrofit2.Response;
@@ -159,8 +163,14 @@ public class WikiActivity extends BaseActivity {
         markwon = Markwon.builder(this)
                 .usePlugin(MarkwonInlineParserPlugin.create(plugin -> {
                     plugin.excludeInlineProcessor(HtmlInlineProcessor.class);
+                    plugin.addInlineProcessor(new SuperscriptInlineProcessor());
                 }))
+                .usePlugin(HtmlPlugin.create(plugin -> {
+                    plugin.excludeDefaults(true).addHandler(new SuperScriptHandler());
+                }))
+                .usePlugin(new ProcessRedditSuperscript())
                 .usePlugin(new AbstractMarkwonPlugin() {
+                    /*
                     @NonNull
                     @Override
                     public String processMarkdown(@NonNull String markdown) {
@@ -176,7 +186,7 @@ public class WikiActivity extends BaseActivity {
                         }
                         return super.processMarkdown(markdownStringBuilder.toString());
                     }
-
+                    */
                     @Override
                     public void afterSetText(@NonNull TextView textView) {
                         textView.setHighlightColor(Color.TRANSPARENT);

app/src/main/java/ml/docilealligator/infinityforreddit/adapters/CommentsListingRecyclerViewAdapter.java

@@ -42,6 +42,8 @@ import io.noties.markwon.Markwon;
 import io.noties.markwon.MarkwonConfiguration;
 import io.noties.markwon.core.MarkwonTheme;
 import io.noties.markwon.ext.strikethrough.StrikethroughPlugin;
+import io.noties.markwon.html.HtmlPlugin;
+import io.noties.markwon.html.tag.SuperScriptHandler;
 import io.noties.markwon.inlineparser.HtmlInlineProcessor;
 import io.noties.markwon.inlineparser.MarkwonInlineParserPlugin;
 import io.noties.markwon.linkify.LinkifyPlugin;
@@ -61,7 +63,9 @@ import ml.docilealligator.infinityforreddit.customtheme.CustomThemeWrapper;
 import ml.docilealligator.infinityforreddit.customviews.CommentIndentationView;
 import ml.docilealligator.infinityforreddit.customviews.SpoilerOnClickTextView;
 import ml.docilealligator.infinityforreddit.utils.APIUtils;
+import ml.docilealligator.infinityforreddit.utils.ProcessRedditSuperscript;
 import ml.docilealligator.infinityforreddit.utils.SharedPreferencesUtils;
+import ml.docilealligator.infinityforreddit.utils.SuperscriptInlineProcessor;
 import ml.docilealligator.infinityforreddit.utils.Utils;
 import retrofit2.Retrofit;
 
@@ -119,8 +123,14 @@ public class CommentsListingRecyclerViewAdapter extends PagedListAdapter<Comment
         mMarkwon = Markwon.builder(mActivity)
                 .usePlugin(MarkwonInlineParserPlugin.create(plugin -> {
                     plugin.excludeInlineProcessor(HtmlInlineProcessor.class);
+                    plugin.addInlineProcessor(new SuperscriptInlineProcessor());
                 }))
+                .usePlugin(HtmlPlugin.create(plugin -> {
+                    plugin.excludeDefaults(true).addHandler(new SuperScriptHandler());
+                }))
+                .usePlugin(new ProcessRedditSuperscript())
                 .usePlugin(new AbstractMarkwonPlugin() {
+                    /*
                     @NonNull
                     @Override
                     public String processMarkdown(@NonNull String markdown) {
@@ -136,7 +146,7 @@ public class CommentsListingRecyclerViewAdapter extends PagedListAdapter<Comment
                         }
                         return super.processMarkdown(markdownStringBuilder.toString());
                     }
-
+                    */
                     @Override
                     public void afterSetText(@NonNull TextView textView) {
                         textView.setHighlightColor(Color.TRANSPARENT);

app/src/main/java/ml/docilealligator/infinityforreddit/adapters/CommentsRecyclerViewAdapter.java

@@ -47,6 +47,11 @@ import io.noties.markwon.Markwon;
 import io.noties.markwon.MarkwonConfiguration;
 import io.noties.markwon.core.MarkwonTheme;
 import io.noties.markwon.ext.strikethrough.StrikethroughPlugin;
+import io.noties.markwon.html.HtmlEmptyTagReplacement;
+import io.noties.markwon.html.HtmlPlugin;
+import io.noties.markwon.html.tag.ImageHandler;
+import io.noties.markwon.html.tag.LinkHandler;
+import io.noties.markwon.html.tag.SuperScriptHandler;
 import io.noties.markwon.inlineparser.HtmlInlineProcessor;
 import io.noties.markwon.inlineparser.MarkwonInlineParserPlugin;
 import io.noties.markwon.linkify.LinkifyPlugin;
@@ -69,7 +74,9 @@ import ml.docilealligator.infinityforreddit.customviews.SpoilerOnClickTextView;
 import ml.docilealligator.infinityforreddit.fragments.ViewPostDetailFragment;
 import ml.docilealligator.infinityforreddit.post.Post;
 import ml.docilealligator.infinityforreddit.utils.APIUtils;
+import ml.docilealligator.infinityforreddit.utils.ProcessRedditSuperscript;
 import ml.docilealligator.infinityforreddit.utils.SharedPreferencesUtils;
+import ml.docilealligator.infinityforreddit.utils.SuperscriptInlineProcessor;
 import ml.docilealligator.infinityforreddit.utils.Utils;
 import retrofit2.Retrofit;
 
@@ -163,8 +170,14 @@ public class CommentsRecyclerViewAdapter extends RecyclerView.Adapter<RecyclerVi
         mCommentMarkwon = Markwon.builder(mActivity)
                 .usePlugin(MarkwonInlineParserPlugin.create(plugin -> {
                     plugin.excludeInlineProcessor(HtmlInlineProcessor.class);
+                    plugin.addInlineProcessor(new SuperscriptInlineProcessor());
                 }))
+                .usePlugin(HtmlPlugin.create(plugin -> {
+                    plugin.excludeDefaults(true).addHandler(new SuperScriptHandler());
+                }))
+                .usePlugin(new ProcessRedditSuperscript())
                 .usePlugin(new AbstractMarkwonPlugin() {
+                    /*
                     @NonNull
                     @Override
                     public String processMarkdown(@NonNull String markdown) {
@@ -180,7 +193,7 @@ public class CommentsRecyclerViewAdapter extends RecyclerView.Adapter<RecyclerVi
                         }
                         return super.processMarkdown(markdownStringBuilder.toString());
                     }
-
+                    */
                     @Override
                     public void afterSetText(@NonNull TextView textView) {
                         SpannableStringBuilder markdownStringBuilder = new SpannableStringBuilder(textView.getText());

app/src/main/java/ml/docilealligator/infinityforreddit/adapters/MessageRecyclerViewAdapter.java

@@ -34,6 +34,8 @@ import io.noties.markwon.Markwon;
 import io.noties.markwon.MarkwonConfiguration;
 import io.noties.markwon.core.MarkwonTheme;
 import io.noties.markwon.ext.strikethrough.StrikethroughPlugin;
+import io.noties.markwon.html.HtmlPlugin;
+import io.noties.markwon.html.tag.SuperScriptHandler;
 import io.noties.markwon.inlineparser.HtmlInlineProcessor;
 import io.noties.markwon.inlineparser.MarkwonInlineParserPlugin;
 import io.noties.markwon.linkify.LinkifyPlugin;
@@ -46,6 +48,8 @@ import ml.docilealligator.infinityforreddit.customtheme.CustomThemeWrapper;
 import ml.docilealligator.infinityforreddit.message.FetchMessage;
 import ml.docilealligator.infinityforreddit.message.Message;
 import ml.docilealligator.infinityforreddit.message.ReadMessage;
+import ml.docilealligator.infinityforreddit.utils.ProcessRedditSuperscript;
+import ml.docilealligator.infinityforreddit.utils.SuperscriptInlineProcessor;
 import retrofit2.Retrofit;
 
 public class MessageRecyclerViewAdapter extends PagedListAdapter<Message, RecyclerView.ViewHolder> {
@@ -102,8 +106,14 @@ public class MessageRecyclerViewAdapter extends PagedListAdapter<Message, Recycl
         mMarkwon = Markwon.builder(mContext)
                 .usePlugin(MarkwonInlineParserPlugin.create(plugin -> {
                     plugin.excludeInlineProcessor(HtmlInlineProcessor.class);
+                    plugin.addInlineProcessor(new SuperscriptInlineProcessor());
                 }))
+                .usePlugin(HtmlPlugin.create(plugin -> {
+                    plugin.excludeDefaults(true).addHandler(new SuperScriptHandler());
+                }))
+                .usePlugin(new ProcessRedditSuperscript())
                 .usePlugin(new AbstractMarkwonPlugin() {
+                    /*
                     @NonNull
                     @Override
                     public String processMarkdown(@NonNull String markdown) {
@@ -119,6 +129,7 @@ public class MessageRecyclerViewAdapter extends PagedListAdapter<Message, Recycl
                         }
                         return super.processMarkdown(markdownStringBuilder.toString());
                     }
+                    */
 
                     @Override
                     public void afterSetText(@NonNull TextView textView) {

app/src/main/java/ml/docilealligator/infinityforreddit/adapters/PostDetailRecyclerViewAdapter.java

@@ -73,6 +73,8 @@ import io.noties.markwon.Markwon;
 import io.noties.markwon.MarkwonConfiguration;
 import io.noties.markwon.core.MarkwonTheme;
 import io.noties.markwon.ext.strikethrough.StrikethroughPlugin;
+import io.noties.markwon.html.HtmlPlugin;
+import io.noties.markwon.html.tag.SuperScriptHandler;
 import io.noties.markwon.inlineparser.HtmlInlineProcessor;
 import io.noties.markwon.inlineparser.MarkwonInlineParserPlugin;
 import io.noties.markwon.linkify.LinkifyPlugin;
@@ -110,7 +112,9 @@ import ml.docilealligator.infinityforreddit.fragments.ViewPostDetailFragment;
 import ml.docilealligator.infinityforreddit.post.Post;
 import ml.docilealligator.infinityforreddit.post.PostPagingSource;
 import ml.docilealligator.infinityforreddit.utils.APIUtils;
+import ml.docilealligator.infinityforreddit.utils.ProcessRedditSuperscript;
 import ml.docilealligator.infinityforreddit.utils.SharedPreferencesUtils;
+import ml.docilealligator.infinityforreddit.utils.SuperscriptInlineProcessor;
 import ml.docilealligator.infinityforreddit.utils.Utils;
 import pl.droidsonroids.gif.GifImageView;
 import retrofit2.Retrofit;
@@ -229,8 +233,14 @@ public class PostDetailRecyclerViewAdapter extends RecyclerView.Adapter<Recycler
         mPostDetailMarkwon = Markwon.builder(mActivity)
                 .usePlugin(MarkwonInlineParserPlugin.create(plugin -> {
                     plugin.excludeInlineProcessor(HtmlInlineProcessor.class);
+                    plugin.addInlineProcessor(new SuperscriptInlineProcessor());
                 }))
+                .usePlugin(HtmlPlugin.create(plugin -> {
+                    plugin.excludeDefaults(true).addHandler(new SuperScriptHandler());
+                }))
+                .usePlugin(new ProcessRedditSuperscript())
                 .usePlugin(new AbstractMarkwonPlugin() {
+                    /*
                     @NonNull
                     @Override
                     public String processMarkdown(@NonNull String markdown) {
@@ -246,7 +256,7 @@ public class PostDetailRecyclerViewAdapter extends RecyclerView.Adapter<Recycler
                         }
                         return super.processMarkdown(markdownStringBuilder.toString());
                     }
-
+                    */
                     @Override
                     public void afterSetText(@NonNull TextView textView) {
                         textView.setHighlightColor(Color.TRANSPARENT);

app/src/main/java/ml/docilealligator/infinityforreddit/adapters/PrivateMessagesDetailRecyclerViewAdapter.java

@@ -27,6 +27,8 @@ import io.noties.markwon.Markwon;
 import io.noties.markwon.MarkwonConfiguration;
 import io.noties.markwon.core.MarkwonTheme;
 import io.noties.markwon.ext.strikethrough.StrikethroughPlugin;
+import io.noties.markwon.html.HtmlPlugin;
+import io.noties.markwon.html.tag.SuperScriptHandler;
 import io.noties.markwon.inlineparser.HtmlInlineProcessor;
 import io.noties.markwon.inlineparser.MarkwonInlineParserPlugin;
 import io.noties.markwon.linkify.LinkifyPlugin;
@@ -37,7 +39,9 @@ import ml.docilealligator.infinityforreddit.activities.ViewPrivateMessagesActivi
 import ml.docilealligator.infinityforreddit.activities.ViewUserDetailActivity;
 import ml.docilealligator.infinityforreddit.customtheme.CustomThemeWrapper;
 import ml.docilealligator.infinityforreddit.message.Message;
+import ml.docilealligator.infinityforreddit.utils.ProcessRedditSuperscript;
 import ml.docilealligator.infinityforreddit.utils.SharedPreferencesUtils;
+import ml.docilealligator.infinityforreddit.utils.SuperscriptInlineProcessor;
 import ml.docilealligator.infinityforreddit.utils.Utils;
 
 public class PrivateMessagesDetailRecyclerViewAdapter extends RecyclerView.Adapter<RecyclerView.ViewHolder> {
@@ -69,7 +73,12 @@ public class PrivateMessagesDetailRecyclerViewAdapter extends RecyclerView.Adapt
         mMarkwon = Markwon.builder(viewPrivateMessagesActivity)
                 .usePlugin(MarkwonInlineParserPlugin.create(plugin -> {
                     plugin.excludeInlineProcessor(HtmlInlineProcessor.class);
+                    plugin.addInlineProcessor(new SuperscriptInlineProcessor());
                 }))
+                .usePlugin(HtmlPlugin.create(plugin -> {
+                    plugin.excludeDefaults(true).addHandler(new SuperScriptHandler());
+                }))
+                .usePlugin(new ProcessRedditSuperscript())
                 .usePlugin(new AbstractMarkwonPlugin() {
                     @Override
                     public void configureConfiguration(@NonNull MarkwonConfiguration.Builder builder) {

app/src/main/java/ml/docilealligator/infinityforreddit/adapters/RulesRecyclerViewAdapter.java

@@ -22,6 +22,8 @@ import io.noties.markwon.Markwon;
 import io.noties.markwon.MarkwonConfiguration;
 import io.noties.markwon.core.MarkwonTheme;
 import io.noties.markwon.ext.strikethrough.StrikethroughPlugin;
+import io.noties.markwon.html.HtmlPlugin;
+import io.noties.markwon.html.tag.SuperScriptHandler;
 import io.noties.markwon.inlineparser.HtmlInlineProcessor;
 import io.noties.markwon.inlineparser.MarkwonInlineParserPlugin;
 import io.noties.markwon.linkify.LinkifyPlugin;
@@ -32,6 +34,8 @@ import ml.docilealligator.infinityforreddit.Rule;
 import ml.docilealligator.infinityforreddit.activities.LinkResolverActivity;
 import ml.docilealligator.infinityforreddit.bottomsheetfragments.UrlMenuBottomSheetFragment;
 import ml.docilealligator.infinityforreddit.customtheme.CustomThemeWrapper;
+import ml.docilealligator.infinityforreddit.utils.ProcessRedditSuperscript;
+import ml.docilealligator.infinityforreddit.utils.SuperscriptInlineProcessor;
 
 public class RulesRecyclerViewAdapter extends RecyclerView.Adapter<RulesRecyclerViewAdapter.RuleViewHolder> {
     private Markwon markwon;
@@ -43,7 +47,12 @@ public class RulesRecyclerViewAdapter extends RecyclerView.Adapter<RulesRecycler
         markwon = Markwon.builder(activity)
                 .usePlugin(MarkwonInlineParserPlugin.create(plugin -> {
                     plugin.excludeInlineProcessor(HtmlInlineProcessor.class);
+                    plugin.addInlineProcessor(new SuperscriptInlineProcessor());
                 }))
+                .usePlugin(HtmlPlugin.create(plugin -> {
+                    plugin.excludeDefaults(true).addHandler(new SuperScriptHandler());
+                }))
+                .usePlugin(new ProcessRedditSuperscript())
                 .usePlugin(new AbstractMarkwonPlugin() {
                     @Override
                     public void configureConfiguration(@NonNull MarkwonConfiguration.Builder builder) {

app/src/main/java/ml/docilealligator/infinityforreddit/bottomsheetfragments/CopyTextBottomSheetFragment.java

@@ -6,6 +6,7 @@ import android.content.ClipData;
 import android.content.ClipboardManager;
 import android.content.Context;
 import android.os.Bundle;
+import android.text.Html;
 import android.view.LayoutInflater;
 import android.view.View;
 import android.view.ViewGroup;
@@ -72,7 +73,8 @@ public class CopyTextBottomSheetFragment extends LandscapeExpandedRoundedBottomS
         }
 
         if (markdownText != null) {
-            markdownText = markdownText.replaceAll("<sup>", "^").replaceAll("</sup>", "");
+            //markdownText = markdownText.replaceAll("<sup>", "^").replaceAll("</sup>", "");
+            markdownText = markdownText.replaceAll("&gt;", ">");
             copyMarkdownTextView.setOnClickListener(view -> {
                 showCopyDialog(markdownText);
                 dismiss();

app/src/main/java/ml/docilealligator/infinityforreddit/fragments/SidebarFragment.java

@@ -34,6 +34,8 @@ import io.noties.markwon.Markwon;
 import io.noties.markwon.MarkwonConfiguration;
 import io.noties.markwon.core.MarkwonTheme;
 import io.noties.markwon.ext.strikethrough.StrikethroughPlugin;
+import io.noties.markwon.html.HtmlPlugin;
+import io.noties.markwon.html.tag.SuperScriptHandler;
 import io.noties.markwon.inlineparser.HtmlInlineProcessor;
 import io.noties.markwon.inlineparser.MarkwonInlineParserPlugin;
 import io.noties.markwon.linkify.LinkifyPlugin;
@@ -55,6 +57,8 @@ import ml.docilealligator.infinityforreddit.customviews.LinearLayoutManagerBugFi
 import ml.docilealligator.infinityforreddit.subreddit.FetchSubredditData;
 import ml.docilealligator.infinityforreddit.subreddit.SubredditData;
 import ml.docilealligator.infinityforreddit.subreddit.SubredditViewModel;
+import ml.docilealligator.infinityforreddit.utils.ProcessRedditSuperscript;
+import ml.docilealligator.infinityforreddit.utils.SuperscriptInlineProcessor;
 import retrofit2.Retrofit;
 
 public class SidebarFragment extends Fragment {
@@ -107,7 +111,12 @@ public class SidebarFragment extends Fragment {
         Markwon markwon = Markwon.builder(activity)
                 .usePlugin(MarkwonInlineParserPlugin.create(plugin -> {
                     plugin.excludeInlineProcessor(HtmlInlineProcessor.class);
+                    plugin.addInlineProcessor(new SuperscriptInlineProcessor());
                 }))
+                .usePlugin(HtmlPlugin.create(plugin -> {
+                    plugin.excludeDefaults(true).addHandler(new SuperScriptHandler());
+                }))
+                .usePlugin(new ProcessRedditSuperscript())
                 .usePlugin(new AbstractMarkwonPlugin() {
                     @Override
                     public void beforeSetText(@NonNull TextView textView, @NonNull Spanned markdown) {

app/src/main/java/ml/docilealligator/infinityforreddit/utils/ProcessRedditSuperscript.java

@@ -0,0 +1,46 @@
+package ml.docilealligator.infinityforreddit.utils;
+
+import java.util.regex.Matcher;
+import java.util.regex.Pattern;
+
+import io.noties.markwon.AbstractMarkwonPlugin;
+
+public class ProcessRedditSuperscript extends AbstractMarkwonPlugin {
+    private static final Pattern re = Pattern.compile("(?:\\^\\((.+?)\\))|(?:\\^(\\S+))");
+
+    @Override
+    public String processMarkdown(String markdown) {
+        StringBuilder builder = new StringBuilder();
+        Matcher matcher =  re.matcher(markdown);
+        int start = 0;
+
+        while (matcher.find()) {
+            try {
+                String match;
+                if ((match = matcher.group(1)) != null || (match = matcher.group(2)) != null) {
+                    builder.append(markdown.substring(start, matcher.start()))
+                            .append("<sup>")
+                            .append(match)
+                            .append("</sup>");
+                    start = matcher.end();
+                } else {
+                    throw new NullPointerException();
+                }
+            } catch(NullPointerException e) {
+                e.printStackTrace();
+            } finally {
+                continue;
+            }
+        }
+
+        if (start < markdown.length()) {
+            builder.append(markdown.substring(start));
+        }
+
+        if(builder.length() > 0) {
+            return builder.toString(); }
+        else {
+            return markdown;
+        }
+    }
+}

app/src/main/java/ml/docilealligator/infinityforreddit/utils/SuperscriptInlineProcessor.java

@@ -0,0 +1,32 @@
+package ml.docilealligator.infinityforreddit.utils;
+
+import androidx.annotation.Nullable;
+
+import org.commonmark.node.HtmlInline;
+import org.commonmark.node.Node;
+
+import java.util.regex.Pattern;
+
+import io.noties.markwon.inlineparser.InlineProcessor;
+
+public class SuperscriptInlineProcessor extends InlineProcessor {
+    private static final Pattern HTML_TAG = Pattern.compile("</?sup>", Pattern.CASE_INSENSITIVE);
+
+    @Override
+    public char specialCharacter() {
+        return '<';
+    }
+
+    @Nullable
+    @Override
+    protected Node parse() {
+        String m = match(HTML_TAG);
+        if (m != null) {
+            HtmlInline node = new HtmlInline();
+            node.setLiteral(m);
+            return node;
+        } else {
+            return null;
+        }
+    }
+}

app/src/main/java/ml/docilealligator/infinityforreddit/utils/Utils.java

@@ -65,6 +65,8 @@ public class Utils {
                 .replaceAll("((?<=[\\s])|^)/[rRuU]/[\\w-]+/{0,1}", "[$0](https://www.reddit.com$0)")
                 .replaceAll("((?<=[\\s])|^)[rRuU]/[\\w-]+/{0,1}", "[$0](https://www.reddit.com/$0)")
                 .replaceAll("\\^{2,}", "^")
+                .replaceAll("(</?sup)>", "$1&gt;")
+                .replaceAll(">!", "&gt;!")
                 .replaceAll("(^|^ *|\\n *)#(?!($|\\s|#))", "$0 ")
                 .replaceAll("(^|^ *|\\n *)##(?!($|\\s|#))", "$0 ")
                 .replaceAll("(^|^ *|\\n *)###(?!($|\\s|#))", "$0 ")
@@ -72,7 +74,8 @@ public class Utils {
                 .replaceAll("(^|^ *|\\n *)#####(?!($|\\s|#))", "$0 ")
                 .replaceAll("(^|^ *|\\n *)######(?!($|\\s|#))", "$0 "));
 
-        return fixSuperScript(regexed);
+        //return fixSuperScript(regexed);
+        return regexed.toString();
     }
 
     private static String fixSuperScript(StringBuilder regexed) {