Function directive_value

benchmarks/src/sql_benchmark.rs:1222–1237

(
    reader: &BenchmarkFileReader,
    line: &'a str,
    directive: &str,
    message: &str,
)

// ---- utility function below

fn directive_value<'a>(
    reader: &BenchmarkFileReader,
    line: &'a str,
    directive: &str,
    message: &str,
) -> Result<&'a str> {
    let value = line
        .get(..directive.len())
        .filter(|prefix| prefix.eq_ignore_ascii_case(directive))
        .and_then(|_| line.get(directive.len()..))
        .map(str::trim)
        .filter(|s| !s.is_empty())
        .ok_or_else(|| exec_datafusion_err!("{}", reader.format_exception(message)))?;

    Ok(value)
}

fn parse_group_from_path(path: &Path, benchmark_directory: &Path) -> String {
    let mut group_name = String::new();