Pos.RegionLexer regions
val create : Position.t -> Position.t -> tCreate a region from a starting and an ending position
val fst : t -> Position.tval snd : t -> Position.tval start_column : t -> intReturn the column where the region starts
val end_column : t -> intReturn the column where the region ends
val char_offset : t -> intGet the region offset (number of characters from the beginning of the file
val length : t -> intGet the lenght of a region
val start_line : t -> intReturn the line number where the region starts
val end_line : t -> intReturn the line number where the region ends
val zero : tThe empty region