fix(em-dash): Strip the spacing before/after an em-dash

src/markdown.rs

@@ -30,6 +30,15 @@ fn strip_comments(mut content: String) -> String {
 fn convert_hyphens_to_em_dashes(mut content: String) -> String {
     let re = Regex::new(r"(\s+--\s+)").unwrap();
     content = Regex::replace_all(&re, content.as_str(), "—").to_string();
+
+    content.trim().to_string()
+}
+
+/// Format em-dashes correctly by stripping the space before/after
+fn format_em_dashes(mut content: String) -> String {
+    let re = Regex::new(r"(\s+—\s+)").unwrap();
+    content = Regex::replace_all(&re, content.as_str(), "—").to_string();
+
     content.trim().to_string()
 }
 
@@ -51,6 +60,9 @@ fn content_to_paragraphs(mut content: String) -> Vec<Paragraph> {
     // Replace double-hyphens to em-dashes
     content = convert_hyphens_to_em_dashes(content);
 
+    // Strip spaces before/after an em-dash
+    content = format_em_dashes(content);
+
     // Convert smart quotes to straight quotes
     content = convert_smart_quotes(content);
 
@@ -356,6 +368,13 @@ mod tests {
         assert!(content == "This is a test—only a test—he was told.");
     }
 
+    #[test]
+    fn test_format_em_dash() {
+        let content = format_em_dashes("This is a test — only a test — he was told.".to_string());
+        println!("{content}");
+        assert!(content == "This is a test—only a test—he was told.");
+    }
+
     #[test]
     fn test_trim_doublespace() {
         let s = "This is a test.  This is only a test.\nIf this were an actual emergency, you would be instructed where to go and what to do.";