Vendor dependencies

notes-service/vendor/email-encoding/src/body/mod.rs

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+//! Email body encoding algorithms.
+
+use core::ops::Deref;
+
+pub mod base64;
+mod chooser;
+
+/// A possible email `Content-Transfer-Encoding`
+#[derive(Debug, Copy, Clone, PartialEq, Eq, Hash)]
+pub enum Encoding {
+    /// 7bit (US-ASCII)
+    SevenBit,
+    /// 8bit (UTF-8)
+    EightBit,
+    /// [Quoted Printable](https://docs.rs/quoted_printable/0.4.5/quoted_printable/fn.encode_to_str.html)
+    QuotedPrintable,
+    /// [Base64](self::base64::encode)
+    Base64,
+}
+
+/// A borrowed `str` or `[u8]`
+#[derive(Debug, Copy, Clone, PartialEq, Eq, Hash)]
+pub enum StrOrBytes<'a> {
+    /// `str` variant
+    Str(&'a str),
+    /// `[u8]` variant
+    Bytes(&'a [u8]),
+}
+
+impl<'a> From<&'a str> for StrOrBytes<'a> {
+    fn from(s: &'a str) -> Self {
+        Self::Str(s)
+    }
+}
+
+impl<'a> From<&'a [u8]> for StrOrBytes<'a> {
+    fn from(s: &'a [u8]) -> Self {
+        Self::Bytes(s)
+    }
+}
+
+impl<'a, const N: usize> From<&'a [u8; N]> for StrOrBytes<'a> {
+    fn from(s: &'a [u8; N]) -> Self {
+        Self::Bytes(s)
+    }
+}
+
+impl Deref for StrOrBytes<'_> {
+    type Target = [u8];
+
+    fn deref(&self) -> &Self::Target {
+        match self {
+            Self::Str(s) => s.as_bytes(),
+            Self::Bytes(b) => b,
+        }
+    }
+}