From f906a69aaada10afdd66a3e84b5c9248824e2023 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Maxime=20=E2=80=9Cpep=E2=80=9D=20Buquet?= <pep@bouah.net>
Date: Tue, 30 Jun 2020 00:02:56 +0200
Subject: [PATCH] pkstring: implement TryFrom<String> and TryFrom<&str>
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Signed-off-by: Maxime “pep” Buquet <pep@bouah.net>
---
 pkstrings/src/lib.rs | 28 ++++++++++++++++++++++++++++
 1 file changed, 28 insertions(+)

diff --git a/pkstrings/src/lib.rs b/pkstrings/src/lib.rs
index d29f0a5..a8aa58b 100644
--- a/pkstrings/src/lib.rs
+++ b/pkstrings/src/lib.rs
@@ -135,3 +135,31 @@ impl Into<Vec<u8>> for PKString {
         vec
     }
 }
+
+impl TryFrom<&str> for PKString {
+    type Error = Error;
+
+    fn try_from(data: &str) -> Result<PKString, Error> {
+        for chr in data.chars() {
+            if ! STRTOHEX.contains_key(&chr) {
+                return Err(Error::InvalidCharacter);
+            }
+        }
+
+        Ok(PKString(String::from(data)))
+    }
+}
+
+impl TryFrom<String> for PKString {
+    type Error = Error;
+
+    fn try_from(data: String) -> Result<PKString, Error> {
+        for chr in data.chars() {
+            if ! STRTOHEX.contains_key(&chr) {
+                return Err(Error::InvalidCharacter);
+            }
+        }
+
+        Ok(PKString(data))
+    }
+}