choice ( seq -- parser )

Vocabulary

peg

Inputs

seq	a sequence of parsers

Outputs

parser

a parser

Word description

Returns a parser that will try all the parsers in the sequence, in order, until one succeeds. The resulting AST is that produced by the successful parser.

Definition

USING: kernel peg.private ;

IN: peg

: choice ( seq -- parser ) choice-parser boa wrap-peg ;