progress

app/src/main/java/gr/thmmy/mthmmy/utils/parsing/BBParser.java

@@ -1,9 +1,13 @@
 package gr.thmmy.mthmmy.utils.parsing;
 
+import android.graphics.Typeface;
+import android.text.Spannable;
 import android.text.SpannableStringBuilder;
 import android.text.SpannedString;
 import android.text.TextUtils;
+import android.text.style.StyleSpan;
 
+import java.nio.charset.UnsupportedCharsetException;
 import java.util.ArrayList;
 import java.util.Arrays;
 import java.util.LinkedList;
@@ -14,30 +18,47 @@ import gr.thmmy.mthmmy.model.BBTag;
 import timber.log.Timber;
 
 public class BBParser {
-    public static final String[] supportedTags = {"b"};
+    private static final String[] supportedTags = {"b"};
 
-    public SpannedString bb2span(String bb) {
+    public static SpannedString bb2span(String bb) {
         SpannableStringBuilder builder = new SpannableStringBuilder(bb);
         BBTag[] tags = getTags(bb);
+        for (BBTag tag : tags) {
+            switch (tag.getName()) {
+                case "b":
+                    builder.setSpan(new StyleSpan(Typeface.BOLD), tag.getStart(), tag.getEnd(), Spannable.SPAN_EXCLUSIVE_EXCLUSIVE);
+                    break;
+                default:
+                    throw new UnsupportedCharsetException("Tag not supported");
+            }
+        }
     }
 
-    public BBTag[] getTags(String bb) {
-        Pattern bbtagPattern = Pattern.compile("[*+]");
+    public static BBTag[] getTags(String bb) {
+        Pattern bbtagPattern = Pattern.compile("\\[(.+?)\\]");
 
         LinkedList<BBTag> tags = new LinkedList<>();
-        String searcingString = bb;
-        Matcher bbMatcher = bbtagPattern.matcher(searcingString);
+        Matcher bbMatcher = bbtagPattern.matcher(bb);
         while (bbMatcher.find()) {
             String name = bbMatcher.group(0);
-            if (!isSupported(name)) continue;
-            tags.add(new BBTag(bbMatcher.start(), name));
-            searcingString = searcingString.substring(bbMatcher.start() + name.length());
-            bbMatcher = bbtagPattern.matcher(searcingString);
+            if (name.startsWith("/")) {
+                //closing tag
+                name = name.substring(1);
+                for (int i = tags.size() - 1; i >= 0; i--) {
+                    if (tags.get(i).getName().equals(name)) {
+                        tags.get(i).setEnd(bbMatcher.start());
+                        break;
+                    }
+                }
+                continue;
+            }
+            if (isSupported(name))
+                tags.add(new BBTag(bbMatcher.start(), name));
         }
         return tags.toArray(new BBTag[0]);
     }
 
-    public boolean isSupported(String tagName) {
+    public static boolean isSupported(String tagName) {
         for (String tag : supportedTags)
             if (TextUtils.equals(tag, tagName)) return true;
         return false;