alt: 'alt' combinator is similar to alternation in BNF. the parser...

In Ramble: Parser Combinator for R

Description

%alt% is the infix notation for the alt function, and it is the preferred way to use the alt operator.

Usage

alt(p1, p2)

Arguments

p1	the first parser
p2	the second parser

Value

Returns the first parser if it suceeds otherwise the second parser

See Also

then

Examples

(item() %alt% succeed("2")) ("abcdef")

Example output

$result
[1] "a"

$leftover
[1] "bcdef"

Ramble documentation built on May 1, 2019, 7:17 p.m.