Fix whitespace bug

Cargo.lock

@@ -1,7 +1,7 @@
 # This file is automatically @generated by Cargo.
 # It is not intended for manual editing.
-version = 3
+version = 4
 
 [[package]]
 name = "nanohtml2text"
-version = "0.2.0"
+version = "0.2.1"

src/lib.rs

@@ -48,9 +48,9 @@ fn html_entities_to_text(s: &str) -> String {
         if let Some(entity) = parse_html_entity(&part[..end]) {
             out.push(entity);
 
-            // Advance past the entity and any following semicolon or whitespace
-            let next_char_len = part[end..].chars().next().map_or(0, |c| c.len_utf8());
-            let remaining = &part[end + next_char_len..];
+            // Advance past the entity and any following semicolon
+            let skip = if part[end..].starts_with(';') { 1 } else { 0 };
+            let remaining = &part[end + skip..];
 
             out.push_str(remaining);
         } else {
@@ -276,6 +276,7 @@ mod tests {
     ignore_unknown_tag_whitespace: "<aa >hello</aa>" to "hello",
     ignore_unknown_tag_attributes: "<aa x=\"1\">hello</aa>" to "hello",
     invalid_html_entity_without_semicolon: "&hellip" to "…",
+    entity_whitespace_preserved: "&amp test" to "& test",
 
     }
 }