Function unescape_string

src/ast/kind.rs:266–303

(s: &str)

}

fn unescape_string(s: &str) -> Option<String> {
    let mut res = String::new();
    let mut chars = s.chars();

    while let Some(ch) = chars.next() {
        if ch == '\\' {
            match chars.next() {
                Some(delim) => match delim {
                    '"' => res.push('"'),
                    '\\' => res.push('\\'),
                    '/' => res.push('/'),
                    'b' => res.push('\x08'),
                    'f' => res.push('\x0c'),
                    'n' => res.push('\n'),
                    'r' => res.push('\r'),
                    't' => res.push('\t'),
                    'u' => {
                        let codepoint = chars
                            .by_ref()
                            .take(4)
                            .collect::<String>()
                            .parse::<u32>()
                            .ok()?;
                        match std::char::from_u32(codepoint) {
                            Some(c) => res.push(c),
                            None => return None, // invalid unicode codepoint
                        }
                    }
                    _ => return None,
                },
                None => return None,
            }
        } else {
            res.push(ch);
        }
    }
    Some(res)
}

impl StringLiteral {
    pub fn get_value(&self) -> String {