Fmlib.PositionRepresents a position in a text file.
module Print (PP : Pretty_printer.SIG) : sig ... endPrint in memory source files with error markers.
val start : tMake a position with points to the start of a textfile.
val line : t -> intGet the line number. First line is line 0.
val column : t -> intGet the column number. First column is column 0.
Advance the position by using the next character. If the next character is a newline, then the line number is increment and the column number is reset to 0.