restructuring

deprecated/F1/stepper_motion/client-p2/cmdlnopts.c

@@ -0,0 +1,120 @@
+/*
+ * cmdlnopts.c - the only function that parse cmdln args and returns glob parameters
+ *
+ * Copyright 2013 Edward V. Emelianoff <eddy@sao.ru>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston,
+ * MA 02110-1301, USA.
+ */
+#include <stdio.h>
+#include <string.h>
+#include <assert.h>
+#include "cmdlnopts.h"
+
+/*
+ * here are global parameters initialisation
+ */
+glob_pars G;  // internal global parameters structure
+int help = 0; // whether to show help string
+
+glob_pars Gdefault = {
+	.serialdev        = "/dev/ttyACM0",
+	.gotopos          = -1000.,
+	.relmove          = 0.,
+};
+
+#ifndef N_
+#define N_(x)   (x)
+#endif
+
+#ifndef _
+#define _(x)    (x)
+#endif
+
+bool get_angle(double *dest, char *src){
+	double A = 0., sign = 1.;
+	int d,m;
+//	printf("arg: %s\n", src);
+	if(myatod(&A, src, arg_double)){ // angle in seconds
+		*dest = A;
+		return true;
+	}else if(3 == sscanf(src, "%d:%d:%lf", &d, &m, &A)){
+		if(d > -361 && d < 361 && m > -1 && m < 60 && A > -0.1 && A < 60.){
+			if(d < 0) sign = -1.;
+			*dest = sign*A + sign*60.*m + 3600.*d;
+			return true;
+		}
+	}else if(2 == sscanf(src, "%d:%lf", &m, &A)){
+		if(m > -60 && m < 60 && A > -0.1 && A < 60.){
+			if(m < 0) sign = -1.;
+			*dest = sign*A + 60.*m;
+			return true;
+		}
+	}
+	fprintf(stderr, "Wrong angle format [%s], need: ss.ss, mm:ss.ss or dd:mm:ss.ss\n", src);
+	return false;
+}
+#ifndef _U_
+#define _U_    __attribute__((__unused__))
+#endif
+bool ang_goto(void *arg, _U_ int N){
+	return get_angle(&G.gotopos, arg);
+}
+
+bool ang_gorel(void *arg, _U_ int N){
+	return get_angle(&G.relmove, arg);
+}
+
+/*
+ * Define command line options by filling structure:
+ *	name	has_arg	flag	val		type		argptr			help
+*/
+myoption cmdlnopts[] = {
+	/// "ÏÔÏÂÒÁÚÉÔØ ÜÔÏ ÓÏÏÂÝÅÎÉÅ"
+	{"help",	0,	NULL,	'h',	arg_int,	APTR(&help),		N_("show this help")},
+	/// "ÐÕÔØ Ë ÕÓÔÒÏÊÓÔ×Õ ÍÉËÒÏËÏÎÔÒÏÌÌÅÒÁ"
+	{"serialdev",1,	NULL,	'd',	arg_string,	APTR(&G.serialdev),	N_("path to MCU device")},
+	{"goto",	1,	NULL,	'g',	arg_function,APTR(ang_goto),	N_("go to given position")},
+	{"relative",1,	NULL,	'r',	arg_function,APTR(ang_gorel),	N_("go relative current position")},
+	end_option
+};
+
+
+/**
+ * Parse command line options and return dynamically allocated structure
+ * 		to global parameters
+ * @param argc - copy of argc from main
+ * @param argv - copy of argv from main
+ * @return allocated structure with global parameters
+ */
+glob_pars *parse_args(int argc, char **argv){
+	int i;
+	void *ptr;
+	ptr = memcpy(&G, &Gdefault, sizeof(G)); assert(ptr);
+	// format of help: "Usage: progname [args]\n"
+	/// "éÓÐÏÌØÚÏ×ÁÎÉÅ: %s [ÁÒÇÕÍÅÎÔÙ]\n\n\tçÄÅ ÁÒÇÕÍÅÎÔÙ:\n"
+	change_helpstring(_("Usage: %s [args]\n\n\tWhere args are:\n"));
+	// parse arguments
+	parseargs(&argc, &argv, cmdlnopts);
+	if(help) showhelp(-1, cmdlnopts);
+	if(argc > 0){
+		/// "éÇÎÏÒÉÒÕÀ ÁÒÇÕÍÅÎÔ[Ù]:"
+		printf("\n%s\n", _("Ignore argument[s]:"));
+		for (i = 0; i < argc; i++)
+			printf("\t%s\n", argv[i]);
+	}
+	return &G;
+}
+