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/* SPDX-License-Identifier: BSD-2-Clause-Views */
/*
* Copyright 2005 Salvatore Sanfilippo <antirez@invece.org>
* Copyright 2005 Clemens Hintze <c.hintze@gmx.net>
* Copyright 2005 patthoyts - Pat Thoyts <patthoyts@users.sf.net>
* Copyright 2008 oharboe - Øyvind Harboe - oyvind.harboe@zylin.com
* Copyright 2008 Andrew Lunn <andrew@lunn.ch>
* Copyright 2008 Duane Ellis <openocd@duaneellis.com>
* Copyright 2008 Uwe Klein <uklein@klein-messgeraete.de>
* Copyright 2008 Steve Bennett <steveb@workware.net.au>
* Copyright 2009 Nico Coesel <ncoesel@dealogic.nl>
* Copyright 2009 Zachary T Welch zw@superlucidity.net
* Copyright 2009 David Brownell
* Copyright (c) 2005-2011 Jim Tcl Project. All rights reserved.
*
* This file is extracted from jim-nvp.h, originally part of jim TCL code.
*/
#ifndef OPENOCD_HELPER_NVP_H
#define OPENOCD_HELPER_NVP_H
#include <helper/compiler.h>
/** Name Value Pairs, aka: NVP
* - Given a string - return the associated int.
* - Given a number - return the associated string.
* .
*
* Very useful when the number is not a simple index into an array of
* known string, or there may be multiple strings (aliases) that mean then same
* thing.
*
* An NVP Table is terminated with ".name = NULL".
*
* During the 'name2value' operation, if no matching string is found
* the pointer to the terminal element (with p->name == NULL) is returned.
*
* Example:
* \code
* const struct nvp yn[] = {
* { "yes", 1 },
* { "no" , 0 },
* { "yep", 1 },
* { "nope", 0 },
* { NULL, -1 },
* };
*
* struct nvp *result;
* result = nvp_name2value(yn, "yes");
* returns &yn[0];
* result = nvp_name2value(yn, "no");
* returns &yn[1];
* result = nvp_name2value(yn, "Blah");
* returns &yn[4];
* \endcode
*
* During the number2name operation, the first matching value is returned.
*/
struct nvp {
const char *name;
int value;
};
struct command_invocation;
/* Name Value Pairs Operations */
const struct nvp *nvp_name2value(const struct nvp *nvp_table, const char *name)
__returns_nonnull __nonnull((1));
const struct nvp *nvp_value2name(const struct nvp *nvp_table, int v)
__returns_nonnull __nonnull((1));
void nvp_unknown_command_print(struct command_invocation *cmd, const struct nvp *nvp,
const char *param_name, const char *param_value);
#endif /* OPENOCD_HELPER_NVP_H */
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