Struct CsvStreamParser 

pub struct CsvStreamParser { /* private fields */ }

A row-at-a-time streaming CSV parser for large files.

Reads the file line by line with minimal memory allocation. Quoted multi-line fields are assembled across physical lines before yielding a logical record.

Example

use oxiphysics_io::csv::CsvStreamParser;

let mut parser = CsvStreamParser::open("/tmp/big.csv", ',').unwrap();
let headers = parser.headers().to_vec();
while let Some(record) = parser.next_record().unwrap() {
    // process record.fields
    let _ = record.len();
}

Implementations

impl CsvStreamParser

pub fn open(path: &str, delimiter: char) -> Result<Self, Error>

Open a CSV file for streaming parsing.

pub fn headers(&self) -> &[String]

Return the column headers read from the first row.

pub fn next_record(&mut self) -> Result<Option<CsvRecord>, Error>

Read and return the next logical CSV record.

Returns Ok(None) at EOF, Err(_) on I/O or parse errors.