Module `Write.Expert`

Here be dragons. You may wish to use these functions over the bracketed interface above, but you MUST wait on Pipe.upstream_flushed after closing the pipe.

val maybe_escape_field : ?⁠quote:char -> ?⁠sep:char -> string -> string: Escape the a CSV field if need be.

val escape_field : ?⁠quote:char -> string -> string: Escape a CSV (even if doesn't have any characters that require escaping).

val quote_len : quote:char -> sep:char -> pos:int -> len:int -> string -> int option: Get the escaped length of one quoted field (without the quotes). Returns None if the field doesn't need to be escaped.

val quote_blit : quote:char -> src:string -> dst:Core_kernel.Bytes.t -> src_pos:int -> dst_pos:int -> len:int -> int: Copy and escapes the content of a field over from one string to another. This does not put the quotes in.

val of_writer : ?⁠sep:char -> ?⁠line_breaks:[ `Unix | `Windows ] -> write_header:bool -> 'a t -> Async.Writer.t -> 'a Async.Pipe.Writer.t

Make a pipe writer for 'as from a writer. The 'as will be written out as CSVs.

WARNING: you MUST wait on Pipe.upstream_flushed before doing anything with the resulting file

val of_writer_and_close : ?⁠sep:char -> ?⁠line_breaks:[ `Unix | `Windows ] -> write_header:bool -> 'a t -> Async.Writer.t -> 'a Async.Pipe.Writer.t

Make a pipe writer for 'as from a writer. The 'as will be written out as CSVs.

The writer will be closed when the pipe closes.

WARNING: you MUST wait on Pipe.upstream_flushed before doing anything with the resulting file

val create_writer : ?⁠sep:char -> ?⁠line_breaks:[ `Unix | `Windows ] -> write_header:bool -> 'a t -> string -> 'a Async.Pipe.Writer.t Async.Deferred.t

Make a pipe writer for 'as from a filename. The 'as will be written out as CSVs.

The writer will be closed when the pipe closes.

WARNING: you MUST wait on Pipe.upstream_flushed before doing anything with the resulting file

module By_row : sig ... end