method

puts

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

puts(...) public

Writes the given objects to ios as with IO#print. Writes a record separator (typically a newline) after any that do not already end with a newline sequence. If called with an array argument, writes each element on a new line. If called without arguments, outputs a single record separator.

$stdout.puts("this", "is", "a", "test")

produces:

this
is
a
test

Show source

/*
 *  call-seq:
 *     ios.puts(obj, ...)    => nil
 *  
 *  Writes the given objects to <em>ios</em> as with
 *  <code>IO#print</code>. Writes a record separator (typically a
 *  newline) after any that do not already end with a newline sequence.
 *  If called with an array argument, writes each element on a new line.
 *  If called without arguments, outputs a single record separator.
 *     
 *     $stdout.puts("this", "is", "a", "test")
 *     
 *  <em>produces:</em>
 *     
 *     this
 *     is
 *     a
 *     test
 */

VALUE
rb_io_puts(argc, argv, out)
    int argc;
    VALUE *argv;
    VALUE out;
{
    int i;
    VALUE line;

    /* if no argument given, print newline. */
    if (argc == 0) {
        rb_io_write(out, rb_default_rs);
        return Qnil;
    }
    for (i=0; i<argc; i++) {
        if (NIL_P(argv[i])) {
            line = rb_str_new2("nil");
        }
        else {
            line = rb_check_array_type(argv[i]);
            if (!NIL_P(line)) {
                rb_protect_inspect(io_puts_ary, line, out);
                continue;
            }
            line = rb_obj_as_string(argv[i]);
        }
        rb_io_write(out, line);
        if (RSTRING(line)->len == 0 ||
            RSTRING(line)->ptr[RSTRING(line)->len-1] != '\n') {
            rb_io_write(out, rb_default_rs);
        }
    }

    return Qnil;
}

puts

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