Added blockquote type=cite

app/src/main/java/eu/faircode/email/EditTextCompose.java

@@ -409,7 +409,8 @@ public class EditTextCompose extends FixedEditText {
                         h = "<div>" + HtmlHelper.formatPlainText(t.toString(), false) + "</div>";
                     }
                     String style = HtmlHelper.getQuoteStyle("", 0, 0);
-                    String html = "<blockquote style=\"" + style + "\">" + h + "</blockquote>";
+                    String type = HtmlHelper.getQuoteType();
+                    String html = "<blockquote style=\"" + style + "\" type=\"" + type + "\">" + h + "</blockquote>";
 
                     Helper.getUIExecutor().submit(new RunnableEx("pasteq") {
                         @Override

app/src/main/java/eu/faircode/email/EntityRule.java

@@ -1236,7 +1236,9 @@ public class EntityRule {
                 if (quote) {
                     String style = e.attr("style");
                     style = HtmlHelper.mergeStyles(style, HtmlHelper.getQuoteStyle(e));
-                    e.tagName("blockquote").attr("style", style);
+                    e.tagName("blockquote")
+                            .attr("style", style)
+                            .attr("type", HtmlHelper.getQuoteType());
                 } else
                     e.tagName("p");
                 div.appendChild(e);

app/src/main/java/eu/faircode/email/FragmentCompose.java

@@ -6388,7 +6388,9 @@ public class FragmentCompose extends FragmentBase {
                             if (quote) {
                                 String style = e.attr("style");
                                 style = HtmlHelper.mergeStyles(style, HtmlHelper.getQuoteStyle(e));
-                                e.tagName("blockquote").attr("style", style);
+                                e.tagName("blockquote")
+                                        .attr("style", style)
+                                        .attr("type", HtmlHelper.getQuoteType());
                             } else
                                 e.tagName("p");
                             reply.appendChild(e);

app/src/main/java/eu/faircode/email/HtmlEx.java

@@ -153,7 +153,7 @@ public class HtmlEx {
                     if (span instanceof QuoteSpan)
                         out.append("<blockquote style=\"")
                                 .append(eu.faircode.email.HtmlHelper.getQuoteStyle(text, next, end))
-                                .append("\">");
+                                .append("\" type=\"" + HtmlHelper.getQuoteType() + "\">");
                     else if (span instanceof eu.faircode.email.IndentSpan)
                         out.append("<blockquote style=\"")
                                 .append(eu.faircode.email.HtmlHelper.getIndentStyle(text, next, end))

app/src/main/java/eu/faircode/email/HtmlHelper.java

@@ -2341,7 +2341,7 @@ public class HtmlHelper {
                     if (tlevel > level)
                         sb.append("<blockquote style=\"")
                                 .append(getQuoteStyle(line, 0, line.length()))
-                                .append("\">");
+                                .append("\" type=\"" + HtmlHelper.getQuoteType() + "\">");
 
                     line = line.substring(1); // >
 
@@ -2758,6 +2758,11 @@ public class HtmlHelper {
         return "border-" + dir + ":3px solid #ccc; padding-" + dir + ":10px;margin:0;";
     }
 
+    static String getQuoteType() {
+        // https://github.com/mozilla-firefox/firefox/blob/aaf0207c409c5f6479cc92bc1bf407a453d63cdc/editor/libeditor/HTMLEditUtils.cpp#L804
+        return "cite"; // Non standard
+    }
+
     static String getIndentStyle(CharSequence quoted, int start, int end) {
         return "margin-top:0; margin-bottom:0;";
     }