exactly-n ( parser n -- parser' )

Vocabulary

peg.parsers

Inputs

parser	a parser
n	an integer

Outputs

parser'

a parser

Word description

Returns a parser that matches an exact repetition of the input parser.

Examples

USING: peg peg.parsers prettyprint ; "aaa" "a" token 4 exactly-n parse => exception

USING: peg peg.parsers prettyprint ; "aaaa" "a" token 4 exactly-n parse .
V{ "a" "a" "a" "a" }

See also

at-least-n, at-most-n, from-m-to-n

Definition

USING: kernel peg sequences ;

IN: peg.parsers

: exactly-n ( parser n -- parser' ) swap <repetition> seq ;