Function valid_prql_ident

prqlc/prqlc/src/codegen/ast.rs:340–347

()

}

fn valid_prql_ident() -> &'static Regex {
    static VALID_PRQL_IDENT: OnceLock<Regex> = OnceLock::new();
    VALID_PRQL_IDENT.get_or_init(|| {
        // Pomsky expression (regex is to Pomsky what SQL is to PRQL):
        // ^ ('*' | [ascii_alpha '_$'] [ascii_alpha ascii_digit '_$']* ) $
        Regex::new(r"^(?:\*|[a-zA-Z_$][a-zA-Z0-9_$]*)$").unwrap()
    })
}

pub fn write_ident_part(s: &str) -> Cow<'_, str> {
    if valid_prql_ident().is_match(s) && !keywords().contains(s) {