Update based on ytmimi's review

src/comment.rs

@@ -963,17 +963,21 @@ fn trim_custom_comment_prefix(s: &str) -> String {
 
 /// Returns `true` if the given string MAY include URLs or alike.
 fn has_url(s: &str) -> bool {
-    // This function may return false positive, but should get its job done in most cases.
-    // The regex is indended to capture text such as the below.
+	// A regex matching reference doc links.
     //
+    // ```markdown
     // /// An [example].
     // ///
     // /// [example]: this::is::a::link
+    // ```
+    let reference_link_url = static_regex!(r"^\[.+\]\s?:");
+
+    // This function may return false positive, but should get its job done in most cases.
     s.contains("https://")
         || s.contains("http://")
         || s.contains("ftp://")
         || s.contains("file://")
-        || static_regex!(r"^\[.+\]\s?:").is_match(s)
+        || reference_link_url.is_match(s)
 }
 
 /// Returns true if the given string may be part of a Markdown table.

src/test/configuration_snippet.rs

@@ -24,6 +24,13 @@ impl ConfigurationSection {
     fn get_section<I: Iterator<Item = String>>(
         file: &mut Enumerate<I>,
     ) -> Option<ConfigurationSection> {
+        let config_name_regex = static_regex!(r"^## `([^`]+)`");
+        // Configuration values, which will be passed to `from_str`:
+        //
+        // - must be prefixed with `####`
+        // - must be wrapped in backticks
+        // - may by wrapped in double quotes (which will be stripped)
+        let config_value_regex = static_regex!(r#"^#### `"?([^`]+?)"?`"#);
         loop {
             match file.next() {
                 Some((i, line)) => {
@@ -40,15 +47,9 @@ impl ConfigurationSection {
                         let start_line = (i + 2) as u32;
 
                         return Some(ConfigurationSection::CodeBlock((block, start_line)));
-                    } else if let Some(c) = static_regex!(r"^## `([^`]+)`").captures(&line) {
+                    } else if let Some(c) = config_name_regex.captures(&line) {
                         return Some(ConfigurationSection::ConfigName(String::from(&c[1])));
-                    } else if let Some(c) = static_regex!(r#"^#### `"?([^`]+?)"?`"#).captures(&line)
-                    {
-                        // Configuration values, which will be passed to `from_str`
-                        //
-                        // - must be prefixed with `####`
-                        // - must be wrapped in backticks
-                        // - may by wrapped in double quotes (which will be stripped)
+                    } else if let Some(c) = config_value_regex.captures(&line) {
                         return Some(ConfigurationSection::ConfigValue(String::from(&c[1])));
                     }
                 }