Struct CountLines 

pub struct CountLines { /* private fields */ }

Available on crate feature polars-io only.

Implementations

impl CountLines

pub fn new( quote_char: Option<u8>, eol_char: u8, comment_prefix: Option<CommentPrefix>, ) -> CountLines

pub fn has_comment_prefix(&self) -> bool

pub fn analyze_chunk(&self, bytes: &[u8]) -> [LineStats; 2]

Analyzes a chunk of CSV data.

Returns (newline_count, last_newline_offset, end_inside_string) twice, the first is assuming the start of the chunk is not inside a string, the second assuming the start is inside a string.

If comment_prefix is not None the start of bytes must be at the start of a line (and thus not in the middle of a comment).

pub fn find_next(&self, bytes: &[u8], chunk_size: &mut usize) -> (usize, usize)

pub fn count_rows(&self, bytes: &[u8], is_eof: bool) -> (usize, usize)

pub fn count(&self, bytes: &[u8]) -> (usize, usize)

Available on non-crate feature simd only.

Trait Implementations

impl Clone for CountLines

fn clone(&self) -> CountLines

Returns a duplicate of the value.

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

Performs copy-assignment from source.