Method renumber

app/src/main/java/eu/faircode/email/StyleHelper.java:1705–1765

(Editable text, boolean clean, Context context)

    }

    static void renumber(Editable text, boolean clean, Context context) {
        int bulletGap = context.getResources().getDimensionPixelSize(R.dimen.bullet_gap_size);
        int bulletIndent = context.getResources().getDimensionPixelSize(R.dimen.bullet_indent_size);
        int colorAccent = Helper.resolveColor(context, androidx.appcompat.R.attr.colorAccent);

        Log.i("Renumber clean=" + clean + " text=" + text);

        int next;
        int pos = -1;
        List<Integer> levels = new ArrayList<>();
        for (int i = 0; i < text.length(); i = next) {
            next = text.nextSpanTransition(i, text.length(), NumberSpan.class);
            Log.i("Bullet span next=" + next);

            BulletSpan[] spans = text.getSpans(i, next, BulletSpan.class);
            for (BulletSpan span : spans) {
                int start = text.getSpanStart(span);
                int end = text.getSpanEnd(span);
                int flags = text.getSpanFlags(span);
                Log.i("Bullet span " + start + "..." + end);

                if (clean && start == end) {
                    text.removeSpan(span);
                    continue;
                }

                int level;
                if (span instanceof NumberSpan)
                    level = ((NumberSpan) span).getLevel();
                else if (span instanceof BulletSpanEx)
                    level = ((BulletSpanEx) span).getLevel();
                else
                    level = 0;

                if (start != pos)
                    levels.clear();
                while (levels.size() > level + 1)
                    levels.remove(levels.size() - 1);
                if (levels.size() == level + 1 && !(span instanceof NumberSpan))
                    levels.remove(level);
                while (levels.size() < level + 1)
                    levels.add(0);

                int index = levels.get(level) + 1;
                levels.remove(level);
                levels.add(level, index);

                if (span instanceof NumberSpan) {
                    NumberSpan ns = (NumberSpan) span;
                    if (index != ns.getIndex()) {
                        text.removeSpan(span);
                        // Text size needs measuring
                        NumberSpan clone = new NumberSpan(bulletIndent, bulletGap, colorAccent, ns.getTextSize(), level, index);
                        text.setSpan(clone, start, end, flags);
                    }

                    pos = end;
                }