DateTime.ordinal([year=-4712[, yday=1[, hour=0[, minute=0[, second=0[, offset=0[, start=Date::ITALY]]]]]]]) â datetime Class Public methods Creates a date-time object denoting the given ordinal date. DateTime.ordinal(2001,34) #=> #<DateTime: 2001-02-03T00:00:00+00:00 ...> DateTime.ordinal(2001,34,4,5,6,'+7') #=> #<DateTime: 2001-02-03T04:05:06+07:00 ...> DateTime.ordinal(2001,-332,-20,-55,-54,'+7') #=> #<

str.swapcase â new_str Instance Public methods Returns a copy of str with uppercase alphabetic characters converted to lowercase and lowercase characters converted to uppercase. Note: case conversion is effective only in ASCII region. "Hello".swapcase #=> "hELLO" "cYbEr_PuNk11".swapcase #=> "CyBeR_pUnK11"

colours(*list) Instance Public methods Also aliased as: colors

sort_by_columnlist(idxlist, orderlist=None) Instance Public methods

child_site() Instance Public methods

ipv6_to_ipv4() Instance Public methods Returns IPv4 address of IPv4 mapped/compatible IPv6 address. It returns nil if self is not IPv4 mapped/compatible IPv6 address. Addrinfo.ip("::192.0.2.3").ipv6_to_ipv4 #=> #<Addrinfo: 192.0.2.3> Addrinfo.ip("::ffff:192.0.2.3").ipv6_to_ipv4 #=> #<Addrinfo: 192.0.2.3> Addrinfo.ip("::1").ipv6_to_ipv4 #=> nil Addrinfo.ip("192.0.2.3").ipv6_to_ipv4 #=> nil Addrinfo.unix("/tmp/sock").ipv6_to_ipv4

flt.to_r â rational Instance Public methods Returns the value as a rational. NOTE: 0.3.to_r isn't the same as '0.3'.to_r. The latter is equivalent to '3/10'.to_r, but the former isn't so. 2.0.to_r #=> (2/1) 2.5.to_r #=> (5/2) -0.75.to_r #=> (-3/4) 0.0.to_r #=> (0/1) See rationalize.

items() Instance Public methods

Process::Sys.setrgid(group) â nil Class Public methods Set the real group ID of the calling process to group. Not available on all platforms.

notify_configinfo(win, pattern, slot=nil) Instance Public methods