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package delimited_parsing
Modules shared between multiple parsers.
Kitchen-sink module for functions shared by multiple parsers.
include module type of Delimited_kernel.Shared
type ('a, 'b) reader =
?strip:bool ->
?skip_lines:int ->
?on_parse_error:
[ `Raise
| `Handle of string Core.Queue.t -> exn -> [ `Continue | `Finish ] ] ->
header:'a ->
'bIf strip is true (default is false) then spaces will be stripped from the beginning and end of fields.
If skip_lines is given then that number of lines will be read and discarded from the top of the file or Reader.t given.
If on_parse_error is `Raise any lines that fail to parse will raise an exception. If `Handle is given the offending line will be passed to the function given, which may then indicate that processing should continue or finish.
Recommendation based on the largest reads and writes observed off a disk or socket.
val strip_buffer : Core.Buffer.t -> stringval make_emit_field :
strip:bool ->
string Core.Queue.t ->
Core.Buffer.t ->
(unit -> unit) Core.Staged.tmake_emit_field ~strip row buffer returns a closure which enqueues buffer into row, stripping leading and trailing whitespace if strip = true.
val make_emit_row :
string Core.Queue.t ->
Delimited_kernel__.Row.t Core.Queue.t ->
[ `No
| `Yes
| `Require of string list
| `Replace of string list
| `Add of string list
| `Transform of string list -> string list
| `Filter_map of string list -> string option list ] ->
lineno:int Core.ref ->
[ `on_eof of unit -> unit ] * (unit -> unit)make_emit_row row rows header ~lineno returns (`on_eof on_eof, emit_row). After zero or more calls to emit_row and a call to on_eof, rows will contain the parsed file.
Note that rows may have fewer elements than the number of calls to emit_row, if header specifies that the first row is a header line.
val drop_lines : Async.Reader.t -> int -> unit Async.Deferred.tdrop_lines r n reads and discards up to and including the nth newline from r.