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87 lines
3.4 KiB
C
87 lines
3.4 KiB
C
/*
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* This file is part of the uniformdistr project.
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* Copyright 2022 Edward V. Emelianov <edward.emelianoff@gmail.com>.
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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 3 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, see <http://www.gnu.org/licenses/>.
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*/
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#include <assert.h>
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#include <stdio.h>
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#include <string.h>
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#include <strings.h>
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#include <math.h>
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#include "cmdlnopts.h"
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#include "usefull_macros.h"
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/*
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* here are global parameters initialisation
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*/
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static int help;
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// default global parameters
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static glob_pars G = {
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.delimeter = ":",
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.Npts = 100,
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.Zmax = 75.,
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.sortcoord = "Z",
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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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static myoption cmdlnopts[] = {
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// common options
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{"help", NO_ARGS, NULL, 'h', arg_int, APTR(&help), "show this help"},
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{"delimeter",NEED_ARG, NULL, 'd', arg_string, APTR(&G.delimeter), "coordinates delimeter string (default: ':')"},
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{"output", NEED_ARG, NULL, 'o', arg_string, APTR(&G.outfile), "output file name"},
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{"npts", NEED_ARG, NULL, 'n', arg_int, APTR(&G.Npts), "max amount of points (default: 100)"},
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{"minz", NEED_ARG, NULL, 'z', arg_double, APTR(&G.Zmin), "minimal Z (degrees) (default: 0.)"},
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{"maxz", NEED_ARG, NULL, 'Z', arg_double, APTR(&G.Zmax), "maximal Z (degrees) (default: 75.)"},
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{"sorting", NEED_ARG, NULL, 's', arg_string, APTR(&G.sorting), "sorting order (none, positive, negative)"},
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{"scoord", NEED_ARG, NULL, 'c', arg_string, APTR(&G.sortcoord), "sort by this coordinate (A, Z, HA, Dec) (default: Z)"},
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{"hideA", NO_ARGS, NULL, '1', arg_none, APTR(&G.hide[0]), "hide first column (A)"},
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{"hideZ", NO_ARGS, NULL, '2', arg_none, APTR(&G.hide[1]), "hide second column (Z)"},
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{"hideHA", NO_ARGS, NULL, '3', arg_none, APTR(&G.hide[2]), "hide third column (HA)"},
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{"hideDec", NO_ARGS, NULL, '4', arg_none, APTR(&G.hide[3]), "hide fourth column (Dec)"},
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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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int i;
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size_t hlen = 1024;
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char helpstring[1024], *hptr = helpstring;
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snprintf(hptr, hlen, "Usage: %%s [args]\n\n\tWhere args are:\n");
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// format of help: "Usage: progname [args]\n"
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change_helpstring(helpstring);
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// parse arguments
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parseargs(&argc, &argv, cmdlnopts);
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if(help) showhelp(-1, cmdlnopts);
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if(argc > 0){
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G.rest_pars_num = argc;
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G.rest_pars = MALLOC(char *, argc);
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for(i = 0; i < argc; i++)
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G.rest_pars[i] = strdup(argv[i]);
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}
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return &G;
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}
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