Method setSpan

app/src/main/java/eu/faircode/email/StyleHelper.java:1541–1551

(Editable edit, Object span, int start, int end, int flags, Context context)

    }

    static void setSpan(Editable edit, Object span, int start, int end, int flags, Context context) {
        if (span instanceof CharacterStyle)
            edit.setSpan(CharacterStyle.wrap((CharacterStyle) span), start, end, flags);
        else if (span instanceof QuoteSpan) {
            ParagraphStyle ps = (ParagraphStyle) span;
            Pair<Integer, Integer> p = ensureParagraph(edit, start, end);
            if (p == null)
                return;
            edit.setSpan(clone(span, ps.getClass(), context), p.first, p.second, flags);
        }
    }

    static private Pair<Integer, Integer> ensureParagraph(Editable edit, int s, int e) {
        int start = s;