tables.rs

1use std::fs;2use std::path::Path;34pub fn write_csv(path: &Path, header: &[String], rows: &[Vec<String>]) {5    let mut out = header.join(",");6    out.push('\n');7    for row in rows {8        let fields: Vec<String> = row.iter().map(|field| quote(field)).collect();9        out.push_str(&fields.join(","));10        out.push('\n');11    }12    fs::write(path, out).expect("the table is writable");13}1415fn quote(field: &str) -> String {16    if field.contains([',', '"', '\n']) {17        format!("\"{}\"", field.replace('"', "\"\""))18    } else {19        field.to_string()20    }21}