From 8b69586c1f372fe8492cf628cad28af0c2a958db Mon Sep 17 00:00:00 2001
From: Zaz Brown <zazbrown@zazbrown.com>
Date: Sun, 4 May 2025 14:04:36 +0000
Subject: [PATCH] add Message::all_parts, leaf_parts, other_parts

---
 src/core/message.rs | 23 +++++++++++++++++++++++
 1 file changed, 23 insertions(+)

diff --git a/src/core/message.rs b/src/core/message.rs
index 7d8e94ec..68ee80c4 100644
--- a/src/core/message.rs
+++ b/src/core/message.rs
@@ -458,6 +458,29 @@ impl<'x> Message<'x> {
         AttachmentIterator::new(self)
     }
 
+/// Returns all parts of the email.
+pub fn all_parts(&self) -> impl Iterator<Item = &MessagePart<'_>> + '_ {
+    (0..).map(move |id| self.part(id))
+        .take_while(|part| part.is_some())
+        .filter_map(move |part| part)
+}
+
+/// Returns all parts of the email that are not Multipart.
+pub fn leaf_parts(&self) -> impl Iterator<Item = &MessagePart<'_>> + '_ {
+    self.all_parts().filter(|part| !part.is_multipart())
+}
+
+/// Returns all parts of the email that are not Multipart, attachments, or HTML
+/// or text body parts.
+pub fn other_parts(&self) -> impl Iterator<Item = &MessagePart<'_>> + '_ {
+    let this = self;
+    self.leaf_parts().filter(move |part| {
+        !this.attachments().any(|attachment| part == &attachment) &&
+        !this.html_bodies().any(|html_body_part| part == &html_body_part) &&
+        !this.text_bodies().any(|text_body_part| part == &text_body_part)
+    })
+}
+
     /// Returns an owned version of the message
     pub fn into_owned(self) -> Message<'static> {
         Message {