52 lines
1.4 KiB
C
52 lines
1.4 KiB
C
/*
|
|
* This file Copyright (C) 2008-2014 Mnemosyne LLC
|
|
*
|
|
* It may be used under the GNU GPL versions 2 or 3
|
|
* or any future license endorsed by Mnemosyne LLC.
|
|
*
|
|
*/
|
|
|
|
#pragma once
|
|
|
|
#include "tr-macros.h"
|
|
|
|
/**
|
|
* @addtogroup utils Utilities
|
|
* @{
|
|
*/
|
|
|
|
/** @brief Similar to optind, this is the current index into argv */
|
|
extern int tr_optind;
|
|
|
|
typedef struct tr_option
|
|
{
|
|
int val; /* the value to return from tr_getopt() */
|
|
char const* longName; /* --long-form */
|
|
char const* description; /* option's description for tr_getopt_usage() */
|
|
char const* shortName; /* short form */
|
|
bool has_arg; /* 0 for no argument, 1 for argument */
|
|
char const* argName; /* argument's description for tr_getopt_usage() */
|
|
} tr_option;
|
|
|
|
enum
|
|
{
|
|
/* all options have been processed */
|
|
TR_OPT_DONE = 0,
|
|
/* a syntax error was detected, such as a missing
|
|
* argument for an option that requires one */
|
|
TR_OPT_ERR = -1,
|
|
/* an unknown option was reached */
|
|
TR_OPT_UNK = -2
|
|
};
|
|
|
|
/**
|
|
* @brief similar to getopt()
|
|
* @return TR_GETOPT_DONE, TR_GETOPT_ERR, TR_GETOPT_UNK, or the matching tr_option's `val' field
|
|
*/
|
|
int tr_getopt(char const* summary, int argc, char const* const* argv, tr_option const* opts, char const** setme_optarg);
|
|
|
|
/** @brief prints the `Usage' help section to stdout */
|
|
void tr_getopt_usage(char const* appName, char const* description, tr_option const* opts);
|
|
|
|
/** @} */
|