From 8bb97e62ca9cec9c7b09025ade05267ce8f4a263 Mon Sep 17 00:00:00 2001
From: Alexis Mousset <alexis.mousset@normation.com>
Date: Thu, 20 Sep 2018 20:09:06 +0200
Subject: [PATCH] Update nom to 0.4

---
 lettre/Cargo.toml           |  2 +-
 lettre/src/smtp/error.rs    |  7 +++----
 lettre/src/smtp/response.rs | 12 +++++-------
 3 files changed, 9 insertions(+), 12 deletions(-)

diff --git a/lettre/Cargo.toml b/lettre/Cargo.toml
index 8bf714a..47c0c25 100644
--- a/lettre/Cargo.toml
+++ b/lettre/Cargo.toml
@@ -20,7 +20,7 @@ is-it-maintained-open-issues = { repository = "lettre/lettre" }
 
 [dependencies]
 log = "^0.4"
-nom = { version = "^3.2", optional = true }
+nom = { version = "^4.0", optional = true }
 bufstream = { version = "^0.1", optional = true }
 native-tls = { version = "^0.2", optional = true }
 base64 = { version = "^0.9", optional = true }
diff --git a/lettre/src/smtp/error.rs b/lettre/src/smtp/error.rs
index 1866bd0..01c60f5 100644
--- a/lettre/src/smtp/error.rs
+++ b/lettre/src/smtp/error.rs
@@ -37,7 +37,7 @@ pub enum Error {
     /// TLS error
     Tls(native_tls::Error),
     /// Parsing error
-    Parsing(nom::simple_errors::Err),
+    Parsing(nom::ErrorKind),
 }
 
 impl Display for Error {
@@ -77,7 +77,6 @@ impl StdError for Error {
             Utf8Parsing(ref err) => Some(&*err),
             Io(ref err) => Some(&*err),
             Tls(ref err) => Some(&*err),
-            Parsing(ref err) => Some(&*err),
             _ => None,
         }
     }
@@ -95,8 +94,8 @@ impl From<native_tls::Error> for Error {
     }
 }
 
-impl From<nom::simple_errors::Err> for Error {
-    fn from(err: nom::simple_errors::Err) -> Error {
+impl From<nom::ErrorKind> for Error {
+    fn from(err: nom::ErrorKind) -> Error {
         Parsing(err)
     }
 }
diff --git a/lettre/src/smtp/response.rs b/lettre/src/smtp/response.rs
index a935b06..821b46c 100644
--- a/lettre/src/smtp/response.rs
+++ b/lettre/src/smtp/response.rs
@@ -1,8 +1,7 @@
 //! SMTP response, containing a mandatory return code and an optional text
 //! message
 
-use nom::simple_errors::Err as NomError;
-use nom::{crlf, ErrorKind as NomErrorKind, IResult as NomResult};
+use nom::{crlf, ErrorKind as NomErrorKind};
 use std::fmt::{Display, Formatter, Result};
 use std::result;
 use std::str::{from_utf8, FromStr};
@@ -126,13 +125,12 @@ pub struct Response {
 }
 
 impl FromStr for Response {
-    type Err = NomError;
+    type Err = NomErrorKind;
 
-    fn from_str(s: &str) -> result::Result<Response, NomError> {
+    fn from_str(s: &str) -> result::Result<Response, NomErrorKind> {
         match parse_response(s.as_bytes()) {
-            NomResult::Done(_, res) => Ok(res),
-            NomResult::Error(e) => Err(e),
-            NomResult::Incomplete(_) => Err(NomErrorKind::Complete),
+            Ok((_, res)) => Ok(res),
+            Err(e) => Err(e.into_error_kind()),
         }
     }
 }