regexp
Regular expressions

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Vocabulary
regexp

Class description
The class of regular expressions. To construct these, see Constructing regular expressions.

Definition

IN: regexp

TUPLE: regexp
    { raw read-only } { parse-tree read-only }
    { options read-only } dfa next-match ;

Methods

USING: accessors kernel regexp regexp.compiler regexp.negation
regexp.private ;

M: regexp compile-regexp
    dup [ [ drop ] ] dip [ get-ast ast>dfa dfa>word ] curry
    compose [ [ dup \ regexp-initial-word = ] ] dip
    [ when ] curry compose change-dfa ;


USING: kernel regexp regexp.private sequences ;

M: regexp end/start drop length 0 ;


USING: accessors pcre2 regexp ;

M: regexp findall raw>> findall ;


USING: accessors pcre regexp ;

M: regexp findall raw>> findall ;


USING: accessors kernel regexp regexp.parser
xmode.marker.private ;

M: regexp fixup-end
    [ raw>> [ -rot update-match-groups ] 1check ]
    [ options>> options>string ] bi <fixup-regexp> ;


USING: kernel regexp regexp.private ;

M: regexp match-iterator-start 2drop 0 ;


USING: accessors kernel make prettyprint.backend
prettyprint.custom regexp regexp.parser splitting ;

M: regexp pprint*
    [
        [
            [ raw>> "/" "\\/" replace "R/ " % % "/" % ]
            [ options>> options>string % ] bi
        ] "" make
    ] keep present-text ;


USING: kernel regexp xmode.rules ;

M: regexp text-hash-char drop f ;


USING: accessors kernel regexp strings xmode.marker ;

M: regexp text-matches?
    [ >string ] dip match-start dup [ to>> ] when ;