A position in a file or string.
It is abstract to provide more flexibility than
val of_lexing : Lexing.position -> t
Convert position. The filename is ignored, the offset, line, and column are potentially used so they matter.
val of_offset : int -> t
Build a position from a byte offset in the input.
val of_line_col : int -> int -> t
of_line_col line col builds the position indicating the character at column
col and line
line of the input. Lines and columns start at 1.
to_offset input pos computes the offset in bytes corresponding to position
val to_lexing : ?filename:string -> Input.t -> t -> Lexing.position
to_lexing input pos computes the full position corresponding to position
pos within input
input. The filename is set to
filename if specified, or to a dummy value otherwise (the empty string).