then {Ramble}

then combinator corresponds to sequencing in BNF. The parser (then(p1, p2)) recognises anything that p1 and p2 would if placed in succession.

Description

%then% is the infix operator for the then combinator, and it is the preferred way to use the then operator.

Usage

then(p1, p2)

Arguments

p1

the first parser

p2

the second parser

Value

recognises anything that p1 and p2 would if placed in succession.

See Also

alt, thentree

Examples

(item() %then% succeed("123")) ("abc")