Struct Dialect 

pub struct Dialect {
    pub delimiter: u8,
    pub quote: Option<u8>,
    pub escape: Option<u8>,
    pub header: bool,
}

How a CSV file is punctuated.

Fields

delimiter: u8

The byte between two fields.

quote: Option<u8>

The byte that opens and closes a field that may hold a delimiter or a newline, if the file has one.

escape: Option<u8>

The byte that makes the next quote a literal one, if the file has one. When it is the quote itself, which is what RFC 4180 says and what every writer does, a doubled quote is one quote.

header: bool

Whether the first line names the columns rather than being one of them.

Implementations

impl Dialect

pub const fn comma_separated() -> Self

The dialect a file with nothing unusual in it has.

pub const fn quote_byte(self) -> u8

The quote byte, or the double quote when the file has none.

A file with no quote in it still needs a byte to compare against while splitting, and the one that cannot appear is the one that never appeared. Splitting on the default is what makes a quote that turns up after the sample still read as a quote.

pub const fn escape_byte(self) -> u8

The escape byte, or the quote byte when the file has none.

pub fn shown(byte: Option<u8>) -> String

How a byte is written in the block DuckDB prints under a CSV error.

A tab is \t there and a byte that is nothing is (empty), which is why this takes the option rather than the byte.

Trait Implementations

impl Clone for Dialect

fn clone(&self) -> Dialect

Returns a duplicate of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl Copy for Dialect

impl Debug for Dialect

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.

impl Eq for Dialect

impl PartialEq for Dialect

fn eq(&self, other: &Dialect) -> bool

Equality operator ==.

fn ne(&self, other: &Rhs) -> bool

Inequality operator !=.

impl StructuralPartialEq for Dialect