C++ Konsolenparameter werden teilweise ausgelesen
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Hi zusammen!
Ich schreibe zur Zeit ein Konsolenprogramm. Dieses soll auch per Konsolenpamater verschiedene Dinge ausführen. Leider werden die Argumente "-h" und "-t" nicht ausgewertet. Der Parameter "-v" dagegen schon.
Sieht jemand den Fehler? Anscheinend übersehe ich den Fehler...
Der Code:
main.cpp
#include "getopt.h" #include <cstdio> #include <iostream> #define VERSION_MAJOR 0 #define VERSION_MINOR 01 void printHelp(char *progname) { std::cout << "Usage: %s -f filename [OPTIONS]" << std::endl; std::cout << "OPTIONS:" << std::endl; std::cout << "-t, --test - Test all functions in program" << std::endl; std::cout << "-v, --version - Print version and exit" << std::endl; std::cout << progname << std::endl; } void printHelp() { std::cout << "Usage: %s -f filename [OPTIONS]" << std::endl; std::cout << "OPTIONS:" << std::endl; std::cout << "-t, --test - Test all functions in program" << std::endl; std::cout << "-v, --version - Print version and exit" << std::endl; } int main(int argc, char** argv) { //int ret = 0; /** Parse arguments */ while(true) { int c = 0; int option_index = 0; static struct option long_options[] = { {"help", no_argument,0,'h'}, {"test", no_argument,0,'t'}, {"version",no_argument, 0, 'v'}, {0,0,0,0} }; /* getopt_long stores the option index here. */ option_index = 0; c = getopt_long(argc, argv, "h:t:v", long_options, &option_index); /* Detect the end of the options. */ if(c == -1) { break; } switch(c) { case 'h': printHelp(); return 0; break; case 't': std::cout << "test" << std::endl; return 0; break; case 'v': std::cout << "programm version " << VERSION_MAJOR << "." << VERSION_MINOR << std::endl; //printf("programm version %d.%d\n", VERSION_MAJOR, VERSION_MINOR); return 0; default: ; } std::cout << "no argument" << std::endl; return 0; }
getopt.h
#ifndef __GETOPT_H__ /* * getopt.h * * $Id$ * * Defines constants and function prototypes required to implement * the `getopt', `getopt_long' and `getopt_long_only' APIs. * * This file is part of the MinGW32 package set. * * Contributed by Keith Marshall <keithmarshall@users.sourceforge.net> * Last modification: 04-Jan-2008 * * THIS SOFTWARE IS NOT COPYRIGHTED * * This source code is offered for use in the public domain. You may * use, modify or distribute it freely. * * This code is distributed in the hope that it will be useful but * WITHOUT ANY WARRANTY. ALL WARRANTIES, EXPRESS OR IMPLIED ARE HEREBY * DISCLAIMED. This includes but is not limited to warranties of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. * * $Revision$ * $Author$ * $Date$ * */ #define __GETOPT_H__ /* All the headers include this file. */ //#include <_mingw.h> #ifdef __cplusplus extern "C" { #endif extern int optind; /* index of first non-option in argv */ extern int optopt; /* single option character, as parsed */ extern int opterr; /* flag to enable built-in diagnostics... */ /* (user may set to zero, to suppress) */ extern char *optarg; /* pointer to argument of current option */ extern int getopt( int, char * const [], const char * ); #ifdef __cplusplus } #endif /* * POSIX requires the `getopt' API to be specified in `unistd.h'; * thus, `unistd.h' includes this header. However, we do not want * to expose the `getopt_long' or `getopt_long_only' APIs, when * included in this manner. Thus, close the standard __GETOPT_H__ * declarations block, and open an additional __GETOPT_LONG_H__ * specific block, only when *not* __UNISTD_H_SOURCED__, in which * to declare the extended API. */ #endif /* !defined(__GETOPT_H__) */ #if !defined(__UNISTD_H_SOURCED__) && !defined(__GETOPT_LONG_H__) #define __GETOPT_LONG_H__ #ifdef __cplusplus extern "C" { #endif struct option /* specification for a long form option... */ { const char *name; /* option name, without leading hyphens */ int has_arg; /* does it take an argument? */ int *flag; /* where to save its status, or NULL */ int val; /* its associated status value */ }; enum /* permitted values for its `has_arg' field... */ { no_argument = 0, /* option never takes an argument */ required_argument, /* option always requires an argument */ optional_argument /* option may take an argument */ }; extern int getopt_long( int, char * const [], const char *, const struct option *, int * ); extern int getopt_long_only( int, char * const [], const char *, const struct option *, int * ); /* * Previous MinGW implementation had... */ #ifndef HAVE_DECL_GETOPT /* * ...for the long form API only; keep this for compatibility. */ # define HAVE_DECL_GETOPT 1 #endif #ifdef __cplusplus } #endif #endif /* !defined(__UNISTD_H_SOURCED__) && !defined(__GETOPT_LONG_H__) */ /* $RCSfile$Revision$: end of file */
Danke
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Ein kleiner Nachtrag:
Auf der Linux Konsole wird als Beispiel ausgegeben:
./sammlung : option requires an argument -- 't'
no argumentbzw.
programm versio 0.1
Wieso wird beim Parameter "-t" nicht "Test" auf der Konsole ausgegeben?
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s. getopt_long bzw. als Beispiel C: getopt_long example: Accessing command line arguments
Durch die Angabe "h:t:v" verlangen 'h' und 't' noch jeweils ein weiteres Argument.
Du willst nur "htv".
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Danke für die schnell Hilfe.
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Wenn ich gerne Parameter wie "-t1" (Test1) oder "-t2" (Test) bzw. längere Parameter (für mehrere passen Unterscheidungen), wie müsste es aussehen?
Stichwort "getopts" in der bash. Da ich laut der Anleitung
[url]
https://stackoverflow.com/questions/10402536/how-can-i-get-getopts-source
[/url]dies als Header erzeugen wollte, aber nicht funktionierte, bitte ich euch um Hilfe.
Danke