Function ess::parser::parse_one

pub fn parse_one(input: &str) -> Result<(Sexp<'_>, &str), ParseError>

Parses a single s-expression, ignoring any trailing text.

This function returns a pair of the parsed s-expression and the tail of the text.

Errors

If the text begins with an invalid s-expression (imbalanced parenthesis, quotes, invalid numbers like 123q, etc.) then the parser will return an error. Any text after the first s-expression doesn’t affect the parsing.

Examples

let (expr, rest) = parse_one("1 (").unwrap();
assert_eq!(rest, " (");