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/*
* BRLTTY - A background process providing access to the console screen (when in
* text mode) for a blind person using a refreshable braille display.
*
* Copyright (C) 1995-2025 by The BRLTTY Developers.
*
* BRLTTY comes with ABSOLUTELY NO WARRANTY.
*
* This is free software, placed under the terms of the
* GNU Lesser General Public License, as published by the Free Software
* Foundation; either version 2.1 of the License, or (at your option) any
* later version. Please see the file LICENSE-LGPL for details.
*
* Web Page: http://brltty.app/
*
* This software is maintained by Dave Mielke <dave@mielke.cc>.
*/
#ifndef BRLTTY_INCLUDED_CMDLINE_TYPES
#define BRLTTY_INCLUDED_CMDLINE_TYPES
#include "strfmt_types.h"
#ifdef __cplusplus
extern "C" {
#endif /* __cplusplus */
#define OPT_WORD_TRUE "on"
#define OPT_WORD_FALSE "off"
typedef enum {
OPT_Extend = 0X01,
OPT_Config = 0X02,
OPT_EnvVar = 0X04,
OPT_Format = 0X08,
} CommandLineOptionFlag;
typedef struct {
const char *word;
const char *argument;
const char *description;
struct {
const char *setting;
int (*adjust) (char **setting);
} internal;
unsigned char letter;
unsigned char bootParameter;
unsigned char flags;
union {
int *flag;
char **string;
} setting;
union {
const char *const *array;
STR_DECLARE_FORMATTER((*format), unsigned int index);
} strings;
} CommandLineOption;
typedef struct {
const CommandLineOption *table;
size_t count;
} CommandLineOptions;
#define BEGIN_COMMAND_LINE_OPTIONS(name) \
static const CommandLineOption name##Table[] = { \
{ .word = "help", \
.letter = 'h', \
.description = strtext("Show this usage summary, and then exit.") \
},
#define END_COMMAND_LINE_OPTIONS(name) }; \
static const CommandLineOptions name = { \
.table = name##Table, \
.count = ARRAY_COUNT(name##Table), \
};
typedef struct {
const char *name;
const char *description;
const char **setting;
char optional;
} CommandLineParameter;
typedef struct {
const CommandLineParameter *table;
size_t count;
} CommandLineParameters;
#define BEGIN_COMMAND_LINE_PARAMETERS(name) \
static const CommandLineParameter name##Table[] = {
#define END_COMMAND_LINE_PARAMETERS(name) }; \
static const CommandLineParameters name = { \
.table = name##Table, \
.count = ARRAY_COUNT(name##Table), \
};
#define DECLARE_COMMAND_LINE_NOTES(name) const char *const name[]
#define START_COMMAND_LINE_NOTES(name) DECLARE_COMMAND_LINE_NOTES(name) = {
#define BEGIN_COMMAND_LINE_NOTES(name) static START_COMMAND_LINE_NOTES(name)
#define END_COMMAND_LINE_NOTES NULL};
#define COMMAND_LINE_NOTES(...) (const char *const *const []){__VA_ARGS__, NULL}
typedef struct {
const char *name;
const char *purpose;
const CommandLineOptions *options;
const CommandLineParameters *parameters;
const char *const *const *notes;
struct {
const char *name;
const char *description;
} extraParameters;
char **configurationFile;
int *doEnvironmentVariables;
int *doBootParameters;
} CommandLineDescriptor;
#define BEGIN_COMMAND_LINE_DESCRIPTOR(name) \
static const CommandLineDescriptor name = {
#define END_COMMAND_LINE_DESCRIPTOR };
#ifdef __cplusplus
}
#endif /* __cplusplus */
#endif /* BRLTTY_INCLUDED_CMDLINE_TYPES */
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