diff --git a/src/convert.rs b/src/convert.rs
index 4cf5d39..249778a 100644
--- a/src/convert.rs
+++ b/src/convert.rs
@@ -42,14 +42,12 @@ pub fn convert_to_mltt(
     let mut temp_map: HashMap<String, String> = HashMap::new();
     if text_to_convert.len() >= 9 {
         for (index, ch) in text_to_convert.char_indices() {
-            if ch == '്' {
-                if index >= 3 && index + 3 < text_to_convert.len() {
-                    let left_char = get_prev_char(&text_to_convert, index);
-                    let right_char = get_next_char(&text_to_convert, index);
-                    let key = format!("{}്{}", left_char, right_char);
-                    if let Some(value) = map.get(&key) {
-                        temp_map.insert(key, value.to_string());
-                    }
+            if index >= 3 && index + 3 < text_to_convert.len() && ch == '്' {
+                let left_char = get_prev_char(&text_to_convert, index);
+                let right_char = get_next_char(&text_to_convert, index);
+                let key = format!("{}്{}", left_char, right_char);
+                if let Some(value) = map.get(&key) {
+                    temp_map.insert(key, value.to_string());
                 }
             }
         }
@@ -77,25 +75,20 @@ pub fn convert_to_mltt(
     for key in left_combinators {
         if let Some(value) = map.get(&key) {
             while let Some(index) = text_to_convert.find(&key) {
-                let right_char = get_prev_char(&text_to_convert, index);
+                let right_char = get_prev_char(&text_to_convert, index).to_string();
                 if "്ര" == format!("്{}", right_char) {
                     let prev_right_char = format!("്{}", right_char);
                     let right_char = get_nth_char_from(&text_to_convert, index, -3);
-                    let prev_right_val = map.get(&format!("{}", prev_right_char)).unwrap();
-                    let right_val = map.get(&format!("{}", right_char)).unwrap();
+                    let prev_right_val = map.get(&prev_right_char.to_string()).unwrap();
+                    let right_val = map.get(&right_char.to_string()).unwrap();
                     let new_key = format!("{}{}{}", right_char, prev_right_char, key);
                     let new_val = format!("{}{}{}", value, prev_right_val, right_val);
                     text_to_convert = text_to_convert.replace(&new_key, &new_val);
                 }
-                if let Some(right_val) = map.get(&format!("{}", right_char)) {
-                    let new_key = format!("{}{}", right_char, key);
-                    let new_val = format!("{}{}", value, right_val);
-                    text_to_convert = text_to_convert.replace(&new_key, &new_val);
-                } else {
-                    let new_key = format!("{}{}", right_char, key);
-                    let new_val = format!("{}{}", value, right_char);
-                    text_to_convert = text_to_convert.replace(&new_key, &new_val);
-                }
+                let right_val = map.get(&right_char).unwrap_or(&right_char);
+                let new_key = format!("{}{}", right_char, key);
+                let new_val = format!("{}{}", value, right_val);
+                text_to_convert = text_to_convert.replace(&new_key, &new_val);
             }
         } else {
             eprintln!("{:#?} not found in the map!", key);
diff --git a/src/lib.rs b/src/lib.rs
index 4235426..c4b97f4 100644
--- a/src/lib.rs
+++ b/src/lib.rs
@@ -24,9 +24,7 @@ extern "C" {
 #[wasm_bindgen]
 pub fn convert(text_to_convert: &str, map_content: &str) -> String {
     set_panic_hook();
-    let converted_text =
-        convert_text(text_to_convert, map_content).unwrap_or_else(|_| String::from(""));
-    converted_text
+    convert_text(text_to_convert, map_content).unwrap_or_else(|_| String::from(""))
 }
 
 pub fn convert_text(text_to_convert: &str, map_content: &str) -> Result<String, Box<dyn Error>> {
diff --git a/src/map_parser.rs b/src/map_parser.rs
index 1c3acd7..6ebe306 100644
--- a/src/map_parser.rs
+++ b/src/map_parser.rs
@@ -3,24 +3,24 @@ use std::error::Error;
 
 pub fn parse_content(content: &str) -> Result<Vec<Vec<String>>, Box<dyn Error>> {
     let content = content
-        .split("\n")
-        .filter(|x| x.len() >= 1 && x.chars().nth(0) != Some('#') && x.contains("="))
+        .split('\n')
+        .filter(|x| !x.is_empty() && x.chars().nth(0) != Some('#') && x.contains('='))
         .map(|x| {
-            x.split("=")
+            x.split('=')
                 .map(|s| s.trim())
                 .map(String::from)
                 .collect::<Vec<_>>()
         })
-        .filter(|x| x[1].len() >= 1 && x[0].len() >= 1)
+        .filter(|x| !x[1].is_empty() && !x[0].is_empty())
         .collect::<Vec<_>>();
     Ok(content)
 }
 
 pub fn create_unicode_to_mltt_map(
-    content: &Vec<Vec<String>>,
+    content: &[Vec<String>],
 ) -> Result<HashMap<String, String>, Box<dyn Error>> {
     let map = content
-        .into_iter()
+        .iter()
         .map(|s| (s[1].to_owned(), s[0].to_owned()))
         .collect::<HashMap<_, _>>();
     Ok(map)