method

upto

v1_8_7_330 - Show latest stable - 0 notes - Class: String

upto(...) public

Iterates through successive values, starting at str and ending at other_str inclusive, passing each value in turn to the block. The String#succ method is used to generate each value. If optional second argument exclusive is omitted or is false, the last value will be included; otherwise it will be excluded.

"a8".upto("b6") {|s| print s, ' ' }
for s in "a8".."b6"
  print s, ' '
end

produces:

a8 a9 b0 b1 b2 b3 b4 b5 b6
a8 a9 b0 b1 b2 b3 b4 b5 b6

Show source

/*
 *  call-seq:
 *     str.upto(other_str, exclusive=false) {|s| block }   => str
 *  
 *  Iterates through successive values, starting at <i>str</i> and
 *  ending at <i>other_str</i> inclusive, passing each value in turn to
 *  the block. The <code>String#succ</code> method is used to generate
 *  each value.  If optional second argument exclusive is omitted or is <code>false</code>,
 *  the last value will be included; otherwise it will be excluded.
 *     
 *     "a8".upto("b6") {|s| print s, ' ' }
 *     for s in "a8".."b6"
 *       print s, ' '
 *     end
 *     
 *  <em>produces:</em>
 *     
 *     a8 a9 b0 b1 b2 b3 b4 b5 b6
 *     a8 a9 b0 b1 b2 b3 b4 b5 b6
 */

static VALUE
rb_str_upto_m(argc, argv, beg)
    int argc;
    VALUE *argv;
    VALUE beg;
{
    VALUE end, exclusive;

    rb_scan_args(argc, argv, "11", &end, &exclusive);

    return rb_str_upto(beg, end, RTEST(exclusive));
}

upto

Related methods