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105 lines
4.3 KiB
C
105 lines
4.3 KiB
C
/*****************************************************************************/
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/* */
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/* cmdline.h */
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/* */
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/* Helper functions for command line parsing */
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/* */
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/* */
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/* */
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/* (C) 2000 Ullrich von Bassewitz */
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/* Wacholderweg 14 */
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/* D-70597 Stuttgart */
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/* EMail: uz@musoftware.de */
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/* */
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/* */
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/* This software is provided 'as-is', without any expressed or implied */
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/* warranty. In no event will the authors be held liable for any damages */
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/* arising from the use of this software. */
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/* */
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/* Permission is granted to anyone to use this software for any purpose, */
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/* including commercial applications, and to alter it and redistribute it */
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/* freely, subject to the following restrictions: */
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/* */
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/* 1. The origin of this software must not be misrepresented; you must not */
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/* claim that you wrote the original software. If you use this software */
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/* in a product, an acknowledgment in the product documentation would be */
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/* appreciated but is not required. */
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/* 2. Altered source versions must be plainly marked as such, and must not */
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/* be misrepresented as being the original software. */
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/* 3. This notice may not be removed or altered from any source */
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/* distribution. */
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/* */
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/*****************************************************************************/
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#ifndef CMDLINE_H
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#define CMDLINE_H
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#include "attrib.h"
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/*****************************************************************************/
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/* Data */
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/*****************************************************************************/
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/* Program name - is set after call to InitCmdLine */
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extern const char* ProgName;
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/* The program argument vector */
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extern char** ArgVec;
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extern unsigned ArgCount;
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/* Structure defining a long option */
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typedef struct LongOpt LongOpt;
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struct LongOpt {
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const char* Option;
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unsigned ArgCount;
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void (*Func) (const char* Opt, const char* Arg);
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};
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/*****************************************************************************/
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/* Code */
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/*****************************************************************************/
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void InitCmdLine (int* aArgCount, char** aArgVec[], const char* aProgName);
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/* Initialize command line parsing. aArgVec is the argument array terminated by
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* a NULL pointer (as usual), ArgCount is the number of valid arguments in the
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* array. Both arguments are remembered in static storage.
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*/
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void UnknownOption (const char* Opt) attribute ((noreturn));
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/* Print an error about an unknown option and die. */
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void NeedArg (const char* Opt) attribute ((noreturn));
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/* Print an error about a missing option argument and exit. */
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void InvDef (const char* Def) attribute ((noreturn));
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/* Print an error about an invalid definition and die */
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const char* GetArg (unsigned* ArgNum, unsigned Len);
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/* Get an argument for a short option. The argument may be appended to the
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* option itself or may be separate. Len is the length of the option string.
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*/
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void LongOption (unsigned* ArgNum, const LongOpt* OptTab, unsigned OptCount);
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/* Handle a long command line option */
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/* End of cmdline.h */
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#endif
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