Method build

perro_source/core/perro_csv/src/lib.rs:409–418

(table: &Csv, col: usize)

            return Err(format!(
                "csv row has {} columns, expected {}",
                row.len(),
                self.headers.len()
            ));
        }
        self.rows.push(row);
        Ok(())
    }

    pub fn set(&mut self, row: usize, col: usize, value: impl Into<String>) -> Result<(), String> {
        let Some(row) = self.rows.get_mut(row) else {
            return Err(format!("csv row index out of range: {row}"));
        };
        let Some(cell) = row.get_mut(col) else {