peg-replace ( string parser -- result )

Vocabulary

peg.search

Inputs

string	a string
parser	a peg based parser

Outputs

result

a string

Word description

Returns a copy of the original string but with all substrings that successfully parse with the given parser replaced with the result of that parser.

USING: math math.parser peg peg.parsers peg.search prettyprint ; "one 123 two 456" integer-parser [ 2 * number>string ] action peg-replace .
"one 246 two 912"

See also

peg-search

Definition

USING: io.streams.string peg peg.search.private sequences ;

IN: peg.search

: peg-replace ( string parser -- result )
    [ any-char-parser 2choice repeat0 parse sift tree-write ]
    with-string-writer ;