Data Fields
RDM_CMDLINE_OPT Struct Reference
RaimaDB C/C++ API Reference » Command line parsing API

Generic usage function option record. More...

#include "rdmcmdlinetypes.h"

Data Fields
const char * optShort
const char * optLong
const char * arg
const char * desc

Detailed Description

Generic usage function option record.

Examples
core02Example_main.c, core03Example_main.c, core04Example_main.c, core05Example_main.c, core06Example_main.c, core07Example_main.c, core08Example_main.c, core09Example_main.c, core10Example_main.c, core11Example_main.c, core12Example_main.c, core13Example_main.c, core20Example_main.c, core21Example_main.c, core22Example_main.c, core23Example_main.c, core24Example_main.c, core25Example_main.c, core38Example_main.c, cpp50Example_main.cpp, cpp55Example_main.cpp, and cpp70Example_main.cpp.

Field Documentation

arg

const char* RDM_CMDLINE_OPT::arg

Option argument or argument.

An option that takes arguments have an entry here with any of these formats:

  • s =... for a string option argument,
  • i=... for an integer option argument, and
  • c=. for a single character option argument.

A standalone argument have an entry here with any of these formats:

  • #=... for a single command line argument,
  • *=... for zero or more command line arguments, and
  • ?=... for an optional argument.

It only makes sense to have one '*=...' and it should always be the second last element in the array of command line parsing options. The string after the equal sign (shown above as '...') is a documentation string for the argument.

desc

const char* RDM_CMDLINE_OPT::desc

Option or argument description. This string is only for documentation purposes and will be printed with the '-h' or '-help' option.

optLong

const char* RDM_CMDLINE_OPT::optLong

Long option is a string of at least a few characters used to match against. A long option is a command line option that starts with '-' followed by the exact sequence of characters specified here.

rdm_cmdlineNextLongOption will return this string for a match except when it is NULL.

optShort

const char* RDM_CMDLINE_OPT::optShort

Short option is a single character used to match against. A short option is a command line option that starts with '-' followed by a sequence of characters where one of these characters are the one specified here. rdm_cmdlineNextShortOption (and rdm_cmdlineNextLongOption when optLong is NULL) will return this string for a match.

The last element in the array of command line parsing options should have optShort set to NULL.

The documentation for this struct was generated from the following file: