Fix Double Whitespace In Markov Predictor

src/predictors/basic_markov.rs

@@ -77,17 +77,19 @@ impl Predictor for MarkovChainPredictor {
     }
 
     fn predict(&self, query: &str, n: usize) -> Vec<String> {
-        if let Some(top_words) =
+        let split_query: Vec<&str> = query.split_whitespace().collect();
+
+        if let Some(top_words) = 
             get_top_following_words(
                 &self.chain,
-                query.split_whitespace().last().unwrap_or(""),
+                split_query.last().unwrap_or(&""),
                 n,
                 self.configuration.get("term_frequency_threshold").unwrap_or(&String::from("2")).parse::<usize>().unwrap()
             )
         {
             let predictions: Vec<String> = top_words
                 .into_iter()
-                .map(|(word, _)| format!("\"{} {}\"", query, word))
+                .map(|(word, _)| format!("\"{} {}\"", query.trim(), word.trim()))
                 .collect();
             return predictions;
         }