From 170b711d710a0572fbd396c29be6647a5dcf3836 Mon Sep 17 00:00:00 2001
From: Richard Walters <rwalters@digitalstirling.com>
Date: Thu, 15 Oct 2020 12:44:14 -0700
Subject: Version 1.0.1

* Fixed bug in percent encoding of characters \x0 through \xF where
  they were encoded as "%0" through "%F" rather than "%00" through "%0F".
---
 src/codec.rs |  2 +-
 src/uri.rs   | 12 ++++++++++++
 2 files changed, 13 insertions(+), 1 deletion(-)

(limited to 'src')

diff --git a/src/codec.rs b/src/codec.rs
index 22d9000..05fcee8 100644
--- a/src/codec.rs
+++ b/src/codec.rs
@@ -47,7 +47,7 @@ pub fn encode_element(
         .map(|ci| {
             match char::try_from(*ci) {
                 Ok(c) if allowed_characters.contains(&c) => c.to_string(),
-                _ => format!("%{:X}", ci),
+                _ => format!("%{:02X}", ci),
             }
         })
         .collect()
diff --git a/src/uri.rs b/src/uri.rs
index b9e7266..b49cb96 100644
--- a/src/uri.rs
+++ b/src/uri.rs
@@ -1484,6 +1484,18 @@ mod tests {
         assert_eq!(uri.to_string(), "?foo%2Bbar");
     }
 
+    #[test]
+    fn percent_encode_characters_with_two_digits_always() {
+        for ci in 0_u8..31_u8 {
+            let mut uri = Uri::default();
+            uri.set_query(Some(vec![ci]));
+            assert_eq!(
+                uri.to_string(),
+                format!("?%{:02X}", ci)
+            );
+        }
+    }
+
     #[test]
     fn set_illegal_schemes() {
         let test_vectors = [
-- 
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