Add link, images (resource)

This is still some messy code that needs cleaning up, but it adds support for
links and images, of the resource kind (`[a](b)`).
References (`[a][b]`) are parsed and will soon be supported, but need matching.

*   Fix bug to pad percent-encoded bytes when normalizing urls
*   Fix bug with escapes counting as balancing in destination
*   Add `space_or_tab_one_line_ending`, to parse whitespace including up to
    one line ending (but not a blank line)
*   Add `ParserState` to share codes, definitions, etc

1 files changed, 1 insertions, 1 deletions

diff --git a/src/util/sanitize_uri.rs b/src/util/sanitize_uri.rs
index d66978e..55b15e4 100644
--- a/src/util/sanitize_uri.rs
+++ b/src/util/sanitize_uri.rs
@@ -115,7 +115,7 @@ fn normalize_uri(value: &str) -> String {
             result.push(
                 buff[0..char.len_utf8()]
                     .iter()
-                    .map(|&byte| format!("%{:X}", byte))
+                    .map(|&byte| format!("%{:>02X}", byte))
                     .collect::<String>(),
             );