Fixed the indexes bug for margin spans

library/src/main/java/ru/noties/markwon/renderer/SpannableMarkdownVisitor.java

@@ -204,8 +204,7 @@ public class SpannableMarkdownVisitor extends AbstractVisitor {
             setSpan(length, new OrderedListItemSpan(
                     configuration.theme(),
                     String.valueOf(start) + "." + '\u00a0',
-                    blockQuoteIndent,
+                    blockQuoteIndent
-                    length
             ));
 
             // after we have visited the children increment start number
@@ -219,8 +218,7 @@ public class SpannableMarkdownVisitor extends AbstractVisitor {
             setSpan(length, new BulletListItemSpan(
                     configuration.theme(),
                     blockQuoteIndent,
-                    listLevel - 1,
+                    listLevel - 1
-                    length
             ));
         }
 
@@ -253,7 +251,7 @@ public class SpannableMarkdownVisitor extends AbstractVisitor {
         setSpan(length, new HeadingSpan(
                 configuration.theme(),
                 heading.getLevel(),
-                builder.length())
+                builder.length() - length)
         );
 
         newLine();

library/src/main/java/ru/noties/markwon/spans/BulletListItemSpan.java

@@ -19,17 +19,14 @@ public class BulletListItemSpan implements LeadingMarginSpan {
 
     private final int blockIndent;
     private final int level;
-    private final int start;
 
     public BulletListItemSpan(
             @NonNull SpannableTheme theme,
             @IntRange(from = 0) int blockIndent,
-            @IntRange(from = 0) int level,
+            @IntRange(from = 0) int level) {
-            @IntRange(from = 0) int start) {
         this.theme = theme;
         this.blockIndent = blockIndent;
         this.level = level;
-        this.start = start;
     }
 
     @Override
@@ -41,7 +38,7 @@ public class BulletListItemSpan implements LeadingMarginSpan {
     public void drawLeadingMargin(Canvas c, Paint p, int x, int dir, int top, int baseline, int bottom, CharSequence text, int start, int end, boolean first, Layout layout) {
 
         // if there was a line break, we don't need to draw anything
-        if (this.start != start) {
+        if (!first) {
             return;
         }
 

library/src/main/java/ru/noties/markwon/spans/HeadingSpan.java

@@ -16,12 +16,12 @@ public class HeadingSpan extends MetricAffectingSpan implements LeadingMarginSpa
     private final Rect rect = ObjectsPool.rect();
     private final Paint paint = ObjectsPool.paint();
     private final int level;
-    private final int end;
+    private final int textLength;
 
-    public HeadingSpan(@NonNull SpannableTheme theme, @IntRange(from = 1, to = 6) int level, @IntRange(from = 0) int end) {
+    public HeadingSpan(@NonNull SpannableTheme theme, @IntRange(from = 1, to = 6) int level, @IntRange(from = 0) int textLength) {
         this.theme = theme;
         this.level = level;
-        this.end = end;
+        this.textLength = textLength;
     }
 
     @Override
@@ -50,8 +50,7 @@ public class HeadingSpan extends MetricAffectingSpan implements LeadingMarginSpa
         if (level == 1
                 || level == 2) {
 
-            if (this.end == end) {
+            if ((start + textLength) == end) {
-
                 paint.set(p);
 
                 theme.applyHeadingBreakStyle(paint);

library/src/main/java/ru/noties/markwon/spans/OrderedListItemSpan.java

@@ -12,18 +12,15 @@ public class OrderedListItemSpan implements LeadingMarginSpan {
     private final SpannableTheme theme;
     private final String number;
     private final int blockIndent;
-    private final int start;
 
     public OrderedListItemSpan(
             @NonNull SpannableTheme theme,
             @NonNull String number,
-            @IntRange(from = 0) int blockIndent,
+            @IntRange(from = 0) int blockIndent
-            @IntRange(from = 0) int start
     ) {
         this.theme = theme;
         this.number = number;
         this.blockIndent = blockIndent;
-        this.start = start;
     }
 
     @Override
@@ -35,7 +32,7 @@ public class OrderedListItemSpan implements LeadingMarginSpan {
     public void drawLeadingMargin(Canvas c, Paint p, int x, int dir, int top, int baseline, int bottom, CharSequence text, int start, int end, boolean first, Layout layout) {
 
         // if there was a line break, we don't need to draw anything
-        if (this.start != start) {
+        if (!first) {
             return;
         }
 

library/src/main/java/ru/noties/markwon/spans/TaskListSpan.java

@@ -32,7 +32,7 @@ public class TaskListSpan implements LeadingMarginSpan {
     @Override
     public void drawLeadingMargin(Canvas c, Paint p, int x, int dir, int top, int baseline, int bottom, CharSequence text, int start, int end, boolean first, Layout layout) {
 
-        if (this.start != start) {
+        if (!first) {
             return;
         }