Struct irox_csv::CSVMapReader

pub struct CSVMapReader<T>
where
    T: Read + Sized,
{ /* private fields */ }

Returns each row as a Key => Value Mapping, rather than a simple list of values.

CSVMapReader has more validation than CSVReader, as it REQUIRES that each line in the csv file have the same number of elements as the header.

Implementations

impl<T: Read + Sized> CSVMapReader<T>

pub fn new(read: T) -> Result<CSVMapReader<T>, CSVError>

Creates a new CSVMapReader

Will return [Result::Ok(CSVMapReader)] if it can read the CSV’s header. Will return [Result::Err(CSVError)] if any I/O Error, or no header.

pub fn dialect(read: T, dialect: Dialect) -> Result<Self, CSVError>

Creates a new CSVMapReader using the specified dialect

Will return [Result::Ok(CSVMapReader)] if it can read the CSV’s header. Will return [Result::Err(CSVError)] if any I/O Error, or no header.

pub fn next_row(&mut self) -> Result<Option<Row>, CSVError>

Maybe return a single row from the CSV file.

Will return [std::result::Result::Ok(None)] upon EOF Will return [std::result::Result::Err(CSVError)] upon underlying I/O error, or if the particular row doesn’t have enough elements to match up against the header.

pub fn for_each<F: FnMut(Row)>(self, func: F) -> Result<(), CSVError>

Apply the specified function on each element of the read CSV file. This WILL iteratively consume the underlying reader, and will continue until the reader exhausts.