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Library
Module
Module type
Parameter
Class
Class type
Library
Module
Module type
Parameter
Class
Class type
Header parsing control
type 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
]
Control how headers are parsed
`No
: File has no headers; columns can only be accessed by index.`Yes
: File has headers.`Require
: File has headers; assert that at least the given headers appear.`Replace
: File has headers, which are ignored; the given headers are used instead.`Add
: File has no headers. Use the given ones for header access.`Transform
: File has headers; each will be transformed with the given function.`Filter_map
: similar to `Transform
but None
headers are ignored.val sexp_of_t : t -> Sexplib0.Sexp.t