std.csv

rfc 4180 reader; sep ‘,’ ‘;’ or tab; LF/CRLF; skips empty lines and a bom fields are slices of the text; only a quoted field with “” is copied into the arena

CsvError

pub CsvError :: errors {
    unterminated_quote,
}

• unterminated_quote: a field in quotes runs to the end of the text

CsvReader

pub CsvReader :: struct {
    text: []const u8,
    at: usize,
    sep: u8,
    line: usize,
    breaks: usize,
}

not Reader: would clash with std.io’s (modules share one type namespace)

• at: where the next record starts
• line: the line the last record started on, from 1
• breaks: the line breaks read so far

CsvReader.done

pub done :: fn(self: *Self) -> bool

true once every record is read

CsvReader.next

pub next :: fn(self: *Self, a: *Arena) -> [][]const u8 ! CsvError

next record’s fields, in a; empty when done

reader

pub reader :: fn(text: []const u8, sep: u8) -> CsvReader

reader over text; sep 44 ‘,’, 59 ‘;’, 9 tab

records

pub records :: fn(text: []const u8, sep: u8, a: *Arena) -> [][][]const u8 ! CsvError

all records, fields in a

guess_separator

pub guess_separator :: fn(text: []const u8) -> u8

most common of ‘;’ tab ‘,’ on line 1, outside quotes; ‘,’ if none