mirror of
https://github.com/eddyem/BTA_utils.git
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77 lines
2.7 KiB
C
77 lines
2.7 KiB
C
/*
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* cmdlnopts.c - the only function that parse cmdln args and returns glob parameters
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*
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* Copyright 2013 Edward V. Emelianoff <eddy@sao.ru>
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston,
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* MA 02110-1301, USA.
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*/
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#include <assert.h>
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#include "cmdlnopts.h"
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#include "usefull_macros.h"
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#define RAD 57.2957795130823
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#define D2R(x) ((x) / RAD)
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#define R2D(x) ((x) * RAD)
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/*
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* here are global parameters initialisation
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*/
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int help;
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glob_pars G;
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int verbose = 0; // each -v increments this value, e.g. -vvv sets it to 3
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// DEFAULTS
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// default global parameters
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glob_pars const Gdefault = {
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.gotoangle = 400.,
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};
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/*
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* Define command line options by filling structure:
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* name has_arg flag val type argptr help
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*/
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myoption cmdlnopts[] = {
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// set 1 to param despite of its repeating number:
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{"help", NO_ARGS, NULL, 'h', arg_int, APTR(&help), _("show this help")},
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// change p3 position, don't run guiding
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{"goto", NEED_ARG, NULL, 'g', arg_double, APTR(&G.gotoangle), _("rotate for given angle")},
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// goto 0, don't run guiding
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{"absmove", NO_ARGS, NULL, 'a', arg_none, APTR(&G.absmove), _("rotate to given absolute angle (or zero without -g)")},
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// incremented parameter without args (any -v will increment value of "verbose")
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{"verbose", NO_ARGS, NULL, 'v', arg_none, APTR(&verbose), _("verbose level (each -v increase it)")},
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end_option
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};
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/**
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* Parse command line options and return dynamically allocated structure
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* to global parameters
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* @param argc - copy of argc from main
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* @param argv - copy of argv from main
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* @return allocated structure with global parameters
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*/
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glob_pars *parse_args(int argc, char **argv){
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void *ptr;
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ptr = memcpy(&G, &Gdefault, sizeof(G)); assert(ptr);
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// format of help: "Usage: progname [args]\n"
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change_helpstring("Usage: %s [args]\n\n\tWhere args are:\n");
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// parse arguments
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parseargs(&argc, &argv, cmdlnopts);
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if(help || argc > 0) showhelp(-1, cmdlnopts);
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return &G;
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}
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