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instance method

StringScanner#size

size

static VALUE
strscan_size(VALUE self)
{
    struct strscanner *p;

    GET_SCANNER(self, p);
    if (! MATCHED_P(p))        return Qnil;
    return INT2FIX(p->regs.num_regs);
}

Returns the amount of subgroups in the most recent match. The full match counts as a subgroup.

Example

s = StringScanner.new("Fri Dec 12 1975 14:39")
s.scan(/(\w+) (\w+) (\d+) /)       # -> "Fri Dec 12 "
s.size                             # -> 4

See also #search_full #skip #scan_until #skip_until also in 4.1 · 4.0 · 3.4 · 3.3 · 3.1 · 3.0

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