package parsexp

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type t

State of the parser

val create : ?pos:Positions.pos -> unit -> t

Create a new parser state. pos is the initial position, it defaults to {line=1;col=0;offset=0}.

val reset : ?pos:Positions.pos -> t -> unit

Reset the given parsing state. The following always succeed:

reset t ?pos;
assert (t = create ?pos ())
val offset : t -> int

Number of characters fed to the parser

Position in the text

val line : t -> int
val column : t -> int
val position : t -> Positions.pos
val stop : t -> unit

Prevent the state from receiving any more characters. Trying to feed more characters will result in an exception, unless the state is reset.


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