include/qemu/help_option.h

   1 #ifndef QEMU_HELP_OPTION_H
   2 #define QEMU_HELP_OPTION_H
   3
   4 /**
   5  * is_help_option:
   6  * @s: string to test
   7  *
   8  * Check whether @s is one of the standard strings which indicate
   9  * that the user is asking for a list of the valid values for a
  10  * command option like -cpu or -M. The current accepted strings
  11  * are 'help' and '?'. '?' is deprecated (it is a shell wildcard
  12  * which makes it annoying to use in a reliable way) but provided
  13  * for backwards compatibility.
  14  *
  15  * Returns: true if @s is a request for a list.
  16  */
  17 static inline bool is_help_option(const char *s)
  18 {
  19     return !strcmp(s, "?") || !strcmp(s, "help");
  20 }
  21
  22 static inline int starts_with_help_option(const char *s)
  23 {
  24     if (*s == '?') {
  25         return 1;
  26     }
  27     if (g_str_has_prefix(s, "help")) {
  28         return 4;
  29     }
  30     return 0;
  31 }
  32
  33 #endif