Enum csv::NextField
[−]
[src]
pub enum NextField<'a, T: ?Sized + 'a> { Data(&'a T), Error(Error), EndOfRecord, EndOfCsv, }
NextField is the result of parsing a single CSV field.
This is only useful if you're using the low level next_bytes
method.
Variants
Data(&'a T)
A single CSV field as a borrowed slice of the parser's internal buffer.
Error(Error)
A CSV error found during parsing. When an error is found, it is
first returned. All subsequent calls of next_bytes
will return
EndOfCsv
. (EOF is exempt from this. Depending on the state of the
parser, an EOF could trigger Data
, EndOfRecord
and EndOfCsv
,
all in succession.)
In general, once EndOfCsv
is returned, no other return value is
possible on subsequent calls.
EndOfRecord
Indicates the end of a record.
EndOfCsv
Indicates the end of the CSV data. Once this state is entered, the parser can never leave it.
Methods
impl<'a, T: ?Sized + Debug> NextField<'a, T>
[src]
fn into_iter_result(self) -> Option<Result<&'a T>>
Transform NextField into an iterator result.
fn is_end(&self) -> bool
Returns true if and only if the end of CSV data has been reached.
fn unwrap(self) -> &'a T
Returns the underlying field data.
If NextField
is an error or an end of record/CSV marker, this will
panic.