Struct CsvStreamParser 

pub struct CsvStreamParser {
    pub delimiter: char,
    pub headers: Vec<String>,
    pub rows: Vec<Vec<String>>,
    pub has_header: bool,
    pub error_count: usize,
}

A streaming CSV parser that processes data line by line.

Supports optional header rows, delimiter configuration, and type-safe extraction of f64 columns.

Fields

delimiter: char

Column delimiter character.

headers: Vec<String>

Column headers (populated if the first row is a header).

rows: Vec<Vec<String>>

Parsed rows (each row is a Vec of raw string values).

has_header: bool

Whether the first non-empty line should be treated as a header.

error_count: usize

Number of parse errors encountered.

Implementations

impl CsvStreamParser

pub fn new(delimiter: char, has_header: bool) -> Self

Create a new CSV parser.

pub fn feed_line(&mut self, line: &str)

Feed a single line of text to the parser.

pub fn feed_text(&mut self, text: &str)

Feed multiple lines of text.

pub fn column_f64(&self, name: &str) -> Vec<f64>

Extract a column by name as f64 values. Returns empty if header not found.

pub fn column_f64_by_idx(&self, idx: usize) -> Vec<f64>

Extract a column by index as f64 values.

pub fn row_count(&self) -> usize

Number of parsed data rows (excluding header).

Trait Implementations

impl Debug for CsvStreamParser

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

Formats the value using the given formatter.