/*
 * call-seq: to_h
 *
 * Returns the configuration instance variables as a hash, that can be
 * passed to the configure method.
 */
static VALUE cState_to_h(VALUE self)
{
    VALUE result = rb_hash_new();
    GET_STATE(self);
    rb_hash_aset(result, ID2SYM(i_indent), state->indent);
    rb_hash_aset(result, ID2SYM(i_space), state->space);
    rb_hash_aset(result, ID2SYM(i_space_before), state->space_before);
    rb_hash_aset(result, ID2SYM(i_object_nl), state->object_nl);
    rb_hash_aset(result, ID2SYM(i_array_nl), state->array_nl);
    rb_hash_aset(result, ID2SYM(i_check_circular), state->check_circular ? Qtrue : Qfalse);
    rb_hash_aset(result, ID2SYM(i_allow_nan), state->allow_nan ? Qtrue : Qfalse);
    rb_hash_aset(result, ID2SYM(i_max_nesting), LONG2FIX(state->max_nesting));
    return result;
}