diff options
Diffstat (limited to 'tools/cmdline.cc')
| -rw-r--r-- | tools/cmdline.cc | 25 |
1 files changed, 23 insertions, 2 deletions
diff --git a/tools/cmdline.cc b/tools/cmdline.cc index f777c94..29e4da8 100644 --- a/tools/cmdline.cc +++ b/tools/cmdline.cc @@ -29,19 +29,30 @@ void CommandLineParser::PrintHelp() const { fprintf(out, " [OPTIONS...]\n"); bool showed_all = true; + int max_verbosity = 0; for (const auto& option : options_) { + max_verbosity = std::max(option->verbosity_level(), max_verbosity); if (option->verbosity_level() > verbosity) { showed_all = false; continue; } + if (option->help_only()) { + fprintf(out, "%s\n", option->help_text()); + continue; + } fprintf(out, " %s\n", option->help_flags().c_str()); const char* help_text = option->help_text(); if (help_text) { fprintf(out, " %s\n", help_text); } } - fprintf(out, " -h, --help\n Prints this help message%s.\n", - (showed_all ? "" : " (use -v to see more options)")); + fprintf(out, "\n -h, --help\n Prints this help message. "); + if (showed_all) { + fprintf(out, "All options are shown above.\n"); + } else { + fprintf(out, "Add -v (up to a total of %i times) to see more options.\n", + max_verbosity); + } } bool CommandLineParser::Parse(int argc, const char* argv[]) { @@ -91,5 +102,15 @@ bool CommandLineParser::Parse(int argc, const char* argv[]) { return true; } +void CommandLineParser::VerbosePrintf(int min_verbosity, const char* format, + ...) const { + if (min_verbosity > verbosity) return; + va_list args; + va_start(args, format); + vfprintf(stderr, format, args); + fflush(stderr); + va_end(args); +} + } // namespace tools } // namespace jpegxl |