compare_strings (use_quotearg_colon, &flag_results[1].group3);
ASSERT (set_quoting_flags (NULL, QA_SPLIT_TRIGRAPHS)
== QA_ELIDE_OUTER_QUOTES);
compare_strings (use_quotearg_buffer, &flag_results[2].group1);
compare_strings (use_quotearg, &flag_results[2].group2);
compare_strings (use_quotearg_colon, &flag_results[1].group3);
ASSERT (set_quoting_flags (NULL, QA_SPLIT_TRIGRAPHS)
== QA_ELIDE_OUTER_QUOTES);
compare_strings (use_quotearg_buffer, &flag_results[2].group1);
compare_strings (use_quotearg, &flag_results[2].group2);