An escape sequence is a character sequence inside a string literal that represents something special. In Rust, \n starts a new line, \t inserts a tab, and \\ prints a backslash. section 2.10
Use escape sequences when string content would otherwise be difficult to write:
- Escape quotation marks with \" and backslashes with \\. section 2.10
- Write Unicode characters with \u{hexadecimal number}, such as \u{D589}. section 2.10
- Use a raw string such as r#"..."# when many escapes make the text hard to read; add more # marks when the content contains a matching delimiter. section 2.10
Printing visible escape characters
println!("Here are two escape characters: \\n and \\t"); prints the characters \n and \t instead of creating a new line or tab. section 2.10
fn main() { println!("He said, \"You can find the file at c:\\files\\my_documents\\file.txt.\" Then I found the file."); #1 println!(r#"He said, "You can find the file at c:\files\my_documents\file.txt." Then I found the file."#); #2 } #1 We had to use \ eight times here—kind of annoying. #2 Much better!
Compare an escaped string with a raw string containing quotes, backslashes, and a Windows-style path. section 2.10
