change format! to concat()

src/check.rs

@@ -64,23 +64,32 @@ pub fn player_name<S: Into<String>>(name: S) -> PlayerCheck {
 	let mut err_vec = Vec::<String>::new();
 
 	if name.len() < NAME_MIN.with(|n| *n.borrow()) {
-		err_vec.push(format!(
-			"{} character minimum",
-			NAME_MIN.with(|n| *n.borrow())
-		));
+		err_vec.push(
+			[
+				&NAME_MIN.with(|n| *n.borrow()).to_string(),
+				" character minimum",
+			]
+			.concat(),
+		);
 	} else if name.len() > NAME_MAX.with(|n| *n.borrow()) {
-		err_vec.push(format!(
-			"{} character maximum",
-			NAME_MAX.with(|n| *n.borrow())
-		));
+		err_vec.push(
+			[
+				&NAME_MAX.with(|n| *n.borrow()).to_string(),
+				" character maximum"
+			]
+			.concat()
+		);
 	}
 
 	for c in name.chars() {
 		if !NAME_CHARS.with(|n| *n.borrow()).contains(&c.to_string()) {
-			err_vec.push(format!(
-				"Allowed characters are: {}",
-				NAME_CHARS.with(|n| *n.borrow())
-			));
+			err_vec.push(
+				[
+					"Allowed characters are: ",
+					&NAME_CHARS.with(|n| *n.borrow())
+				]
+				.concat()
+			);
 			break;
 		}
 	}
@@ -98,23 +107,32 @@ pub fn player_password<S: Into<String>>(password: S) -> PlayerCheck {
 	let mut err_vec = Vec::<String>::new();
 
 	if password.len() < PASS_MIN.with(|p| *p.borrow()) {
-		err_vec.push(format!(
-			"{} character minimum",
-			PASS_MIN.with(|p| *p.borrow())
-		));
+		err_vec.push(
+			[
+				&PASS_MIN.with(|p| *p.borrow()).to_string(),
+				" character minimum"
+			]
+			.concat()
+		);
 	} else if password.len() > PASS_MAX.with(|p| *p.borrow()) {
-		err_vec.push(format!(
-			"{} character maximum",
-			PASS_MAX.with(|p| *p.borrow())
-		));
+		err_vec.push(
+			[
+				&PASS_MAX.with(|p| *p.borrow()).to_string(),
+				" character maximum"
+			]
+			.concat()
+		);
 	}
 
 	for c in password.chars() {
 		if !PASS_CHARS.with(|p| *p.borrow()).contains(&c.to_string()) {
-			err_vec.push(format!(
-				"Allowed characters are: {}",
-				PASS_CHARS.with(|p| *p.borrow())
-			));
+			err_vec.push(
+				[
+					"Allowed characters are: ",
+					&PASS_CHARS.with(|p| *p.borrow()).to_string()
+				]
+				.concat()
+			);
 			break;
 		}
 	}

src/command/dispatch/say.rs

@@ -19,9 +19,9 @@ impl Command {
 			send_queue.push(
 				neighbor_token,
 				if neighbor_token == token {
-					format!("You say, \"{}\"\n", args)
+					["You say, \"", &args, "\"\n"].concat()
 				} else {
-					format!("{} says, \"{}\"\n", player.name, args)
+					[&player.name, " says, \"", &args, "\"\n"].concat()
 				},
 				true,
 				None,