MatchData#regexp

() -> ::Regexp

regexp → regexp

static VALUE
match_regexp(VALUE match)
{
    VALUE regexp;
    match_check(match);
    regexp = RMATCH(match)->regexp;
    if (NIL_P(regexp)) {
        VALUE str = rb_reg_nth_match(0, match);
        regexp = rb_reg_regcomp(rb_reg_quote(str));
        RB_OBJ_WRITE(match, &RMATCH(match)->regexp, regexp);
    }
    return regexp;
}

Returns the regexp that produced the match:

Example

m = /a.*b/.match("abc") # => #<MatchData "ab">
m.regexp                # => /a.*b/

See also #pre_match #size #post_match #string also in 4.1 · 4.0 · 3.3 · 3.2 · 3.1 · 3.0

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