Impl FromStr for Style

src/encode.rs

@@ -1,4 +1,4 @@
-use std::io::{self, ErrorKind, Read, Write};
+use std::{io::{self, ErrorKind, Read, Write}, str};
 
 #[derive(Default, Clone, Copy)]
 pub enum Style {
@@ -9,6 +9,23 @@ pub enum Style {
     Table,
 }
 
+#[derive(Debug)]
+pub struct ParseStyleError;
+
+impl str::FromStr for Style {
+    type Err = ParseStyleError;
+
+    fn from_str(s: &str) -> Result<Self, Self::Err> {
+        match s {
+            "plain" => Ok(Self::Plain),
+            "spaces" => Ok(Self::Spaces),
+            "prefixed"  => Ok(Self::Prefixed),
+            "table" => Ok(Self::Table),
+            _ => Err(ParseStyleError),
+        }
+    }
+}
+
 pub struct Encoder<R: Read, W: Write> {
     reader: R,
     writer: W,