diff --git a/parser/src/lib.rs b/parser/src/lib.rs
index 864cbe7..63a799c 100644
--- a/parser/src/lib.rs
+++ b/parser/src/lib.rs
@@ -24,9 +24,7 @@ mod replaces;
 
 #[proc_macro]
 pub fn parse_rules(input: TokenStream) -> TokenStream {
-	let directory = input.to_string().trim_matches('"').to_owned();
-	let rules = get_rules(directory);
-
+	let rules = get_rules(input.to_string().trim_matches('"'));
 	gen_match_rules(&rules)
 }
 
@@ -42,7 +40,7 @@ struct MatchError {
 	suggest: Vec<String>,
 }
 
-fn get_rules(directory: String) -> Vec<Rule> {
+fn get_rules(directory: &str) -> Vec<Rule> {
 	let files = std::fs::read_dir(directory).expect("Failed to read directory.");
 
 	let mut rules = Vec::new();
diff --git a/parser/src/replaces.rs b/parser/src/replaces.rs
index 969d435..a73f13c 100644
--- a/parser/src/replaces.rs
+++ b/parser/src/replaces.rs
@@ -1,7 +1,7 @@
 use proc_macro2::TokenStream as TokenStream2;
 use quote::quote;
 
-fn rtag(name: &str, x: i32, y: String) -> TokenStream2 {
+fn rtag(name: &str, x: i32, y: &str) -> TokenStream2 {
 	format!("{}{} = {}", name, x, y).parse().unwrap()
 }
 
@@ -43,7 +43,7 @@ pub fn opts(
 		};
 		opt_list.push(command);
 
-		replace_list.push(rtag(tag_name, replace_tag, current_tag.to_owned()));
+		replace_list.push(rtag(tag_name, replace_tag, &current_tag));
 		suggest.replace_range(placeholder, &current_tag);
 		replace_tag += 1;
 	}
@@ -66,7 +66,7 @@ pub fn cmd_reg(suggest: &mut String, replace_list: &mut Vec<TokenStream2>) {
 
 		let command = format!("cmd_regex(r###\"{}\"###, &last_command)", regex);
 
-		replace_list.push(rtag(tag_name, replace_tag, command));
+		replace_list.push(rtag(tag_name, replace_tag, &command));
 		suggest.replace_range(placeholder, &tag(tag_name, replace_tag));
 		replace_tag += 1;
 	}
@@ -83,7 +83,7 @@ pub fn err(suggest: &mut String, replace_list: &mut Vec<TokenStream2>) {
 
 		let command = format!("err_regex(r###\"{}\"###, error_msg)", regex);
 
-		replace_list.push(rtag(tag_name, replace_tag, command));
+		replace_list.push(rtag(tag_name, replace_tag, &command));
 		suggest.replace_range(placeholder, &tag(tag_name, replace_tag));
 		replace_tag += 1;
 	}
@@ -117,7 +117,7 @@ pub fn command(suggest: &mut String, replace_list: &mut Vec<TokenStream2>) {
 
 			let command = format! {r#"split[{}..{}].join(" ")"#, start_string, end_string};
 
-			replace_list.push(rtag(tag_name, replace_tag, command));
+			replace_list.push(rtag(tag_name, replace_tag, &command));
 			suggest.replace_range(placeholder, &tag(tag_name, replace_tag));
 		} else {
 			let range = range.parse::<i32>().unwrap_or(0);
@@ -127,7 +127,7 @@ pub fn command(suggest: &mut String, replace_list: &mut Vec<TokenStream2>) {
 				format!("split[{}]", range)
 			};
 
-			replace_list.push(rtag(tag_name, replace_tag, command));
+			replace_list.push(rtag(tag_name, replace_tag, &command));
 			suggest.replace_range(placeholder, &tag(tag_name, replace_tag));
 		}
 		replace_tag += 1;
@@ -220,7 +220,7 @@ pub fn typo(suggest: &mut String, replace_list: &mut Vec<TokenStream2>) {
 			)
 		};
 
-		replace_list.push(rtag(tag_name, replace_tag, command));
+		replace_list.push(rtag(tag_name, replace_tag, &command));
 		suggest.replace_range(placeholder, &tag(tag_name, replace_tag));
 		replace_tag += 1;
 	}
@@ -251,7 +251,7 @@ pub fn shell_tag(suggest: &mut String, replace_list: &mut Vec<TokenStream2>, cmd
 			let argument = format!("\"{}\"", argument);
 			let function = format!("{}, {}).join(\"\")", split.0, argument);
 			// let function = format!("\"{}, {}\"", split.0, split.1);
-			replace_list.push(rtag(tag_name, replace_tag, function));
+			replace_list.push(rtag(tag_name, replace_tag, &function));
 			replace_tag += 1;
 		}
 	}
diff --git a/utils/src/evals.rs b/utils/src/evals.rs
index c447e8e..012f949 100644
--- a/utils/src/evals.rs
+++ b/utils/src/evals.rs
@@ -101,7 +101,7 @@ pub fn suggest_typo(typos: &[String], candidates: &[String], executables: &[Stri
 					unreachable!("suggest_typo: must have at least two candidates")
 				}
 			}
-		} else if let Some(suggest) = find_similar(typo, &candidates, Some(2)) {
+		} else if let Some(suggest) = find_similar(typo, candidates, Some(2)) {
 			suggestions.push(suggest);
 		} else {
 			suggestions.push(typo.to_string());