= private = protected
sub(*args)
Equivalent to $_.sub(args), except that $_ will be updated if substitution occurs. Available only when -p/-n command line option specified.
static VALUE rb_f_sub(argc, argv) int argc; VALUE *argv; { VALUE str = rb_funcall3(uscore_get(), rb_intern("sub"), argc, argv); rb_lastline_set(str); return str; }