method

offset

v1_8_7_72 - Show latest stable - 0 notes - Class: MatchData

offset(p1) public

Returns a two-element array containing the beginning and ending offsets of the nth match.

   m = /(.)(.)(\d+)(\d)/.match("THX1138.")
   m.offset(0)   #=> [1, 7]
   m.offset(4)   #=> [6, 7]

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/*
 *  call-seq:
 *     mtch.offset(n)   => array
 *  
 *  Returns a two-element array containing the beginning and ending offsets of
 *  the <em>n</em>th match.
 *     
 *     m = /(.)(.)(\d+)(\d)/.match("THX1138.")
 *     m.offset(0)   #=> [1, 7]
 *     m.offset(4)   #=> [6, 7]
 */

static VALUE
match_offset(match, n)
    VALUE match, n;
{
    int i = NUM2INT(n);

    if (i < 0 || RMATCH(match)->regs->num_regs <= i)
        rb_raise(rb_eIndexError, "index %d out of matches", i);

    if (RMATCH(match)->regs->beg[i] < 0)
        return rb_assoc_new(Qnil, Qnil);

    return rb_assoc_new(INT2FIX(RMATCH(match)->regs->beg[i]),
                        INT2FIX(RMATCH(match)->regs->end[i]));
}

offset

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