From 2605ae1fbe8a89c4ebc4579ce2bb1e5f9dfda186 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Tom=C3=A1=C5=A1=20Ml=C3=A1dek?= <t@mldk.cz>
Date: Mon, 4 Oct 2021 20:37:46 +0200
Subject: [PATCH] parse #tags as links (resolve #8)

---
 src/main.rs | 13 ++++++++++++-
 1 file changed, 12 insertions(+), 1 deletion(-)

diff --git a/src/main.rs b/src/main.rs
index 7f19f09..c17acb8 100644
--- a/src/main.rs
+++ b/src/main.rs
@@ -502,7 +502,7 @@ fn preprocess_markdown(string: String) -> String {
     let finder = LinkFinder::new();
 
     let result = double_brackets
-        .replace_all(string.as_str(), |caps: &Captures| {
+        .replace_all(&string, |caps: &Captures| {
             format!(
                 "[{}]({})",
                 &caps[1],
@@ -511,6 +511,17 @@ fn preprocess_markdown(string: String) -> String {
         })
         .to_string();
 
+    let tags = Regex::new(r"#([\w]+)").unwrap();
+    let result = tags
+        .replace_all(&result, |caps: &Captures| {
+            format!(
+                "[{}]({})",
+                &caps[0],
+                utf8_percent_encode(&caps[1], percent_encoding::NON_ALPHANUMERIC)
+            )
+        })
+        .to_string();
+
     let result_vec = Vec::from(result.as_str());
     let start_delims = vec![b'(', b'<'];
     let end_delims = vec![b')', b'>'];