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comparison src/share/vm/runtime/arguments.cpp @ 11070:6e3634222155

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8017611: Auto corrector for mistyped vm options Summary: The auto corrector for mistyped vm options fuzzy-matches existing flags based on string similarity (Dice's coefficient). Reviewed-by: kvn, dsamersoff, hseigel, johnc
author tamao
date Fri, 28 Jun 2013 20:18:04 -0700
parents c92b74c62d97
children 8b789ce47503
comparison
equal deleted inserted replaced
11069:5ea20b3bd249 11070:6e3634222155
847 arg_len = strlen(argname); 847 arg_len = strlen(argname);
848 } else { 848 } else {
849 arg_len = equal_sign - argname; 849 arg_len = equal_sign - argname;
850 } 850 }
851 851
852 Flag* found_flag = Flag::find_flag((char*)argname, arg_len, true); 852 Flag* found_flag = Flag::find_flag((const char*)argname, arg_len, true);
853 if (found_flag != NULL) { 853 if (found_flag != NULL) {
854 char locked_message_buf[BUFLEN]; 854 char locked_message_buf[BUFLEN];
855 found_flag->get_locked_message(locked_message_buf, BUFLEN); 855 found_flag->get_locked_message(locked_message_buf, BUFLEN);
856 if (strlen(locked_message_buf) == 0) { 856 if (strlen(locked_message_buf) == 0) {
857 if (found_flag->is_bool() && !has_plus_minus) { 857 if (found_flag->is_bool() && !has_plus_minus) {
868 jio_fprintf(defaultStream::error_stream(), "%s", locked_message_buf); 868 jio_fprintf(defaultStream::error_stream(), "%s", locked_message_buf);
869 } 869 }
870 } else { 870 } else {
871 jio_fprintf(defaultStream::error_stream(), 871 jio_fprintf(defaultStream::error_stream(),
872 "Unrecognized VM option '%s'\n", argname); 872 "Unrecognized VM option '%s'\n", argname);
873 Flag* fuzzy_matched = Flag::fuzzy_match((const char*)argname, arg_len, true);
874 if (fuzzy_matched != NULL) {
875 jio_fprintf(defaultStream::error_stream(),
876 "Did you mean '%s%s%s'?\n",
877 (fuzzy_matched->is_bool()) ? "(+/-)" : "",
878 fuzzy_matched->name,
879 (fuzzy_matched->is_bool()) ? "" : "=<value>");
880 }
873 } 881 }
874 882
875 // allow for commandline "commenting out" options like -XX:#+Verbose 883 // allow for commandline "commenting out" options like -XX:#+Verbose
876 return arg[0] == '#'; 884 return arg[0] == '#';
877 } 885 }