Method left_pad_line_number

regex/regex-syntax/src/error.rs:260–266

Left pad the given line number with spaces such that it is aligned with other line numbers.

(&self, n: usize)

    /// Left pad the given line number with spaces such that it is aligned with
    /// other line numbers.
    fn left_pad_line_number(&self, n: usize) -> String {
        let n = n.to_string();
        let pad = self.line_number_width.checked_sub(n.len()).unwrap();
        let mut result = repeat_char(' ', pad);
        result.push_str(&n);
        result
    }

    /// Return the line number padding beginning at the start of each line of
    /// the pattern.