diff target-utils/libcommon/parseargs.c @ 13:f4fc449a64ea

target-utils libcommon infrastructure for interactive commands
author Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
date Fri, 03 May 2013 06:42:03 +0000
parents
children
line wrap: on
line diff
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/target-utils/libcommon/parseargs.c	Fri May 03 06:42:03 2013 +0000
@@ -0,0 +1,39 @@
+/*
+ * This module contains the parse_args() function, which parses the "rest"
+ * part of an entered command into an argc/argv-style argument array.
+ */
+
+parse_args(unparsed, minargs, maxargs, argv, argcp)
+	char *unparsed;
+	int minargs, maxargs;
+	char **argv;
+	int *argcp;
+{
+	int argc;
+	char *cp;
+
+	argc = 0;
+	for (cp = unparsed; ; ) {
+		while (*cp == ' ')
+			cp++;
+		if (!*cp)
+			break;
+		if (argc >= maxargs) {
+			printf("ERROR: too many arguments\n");
+			return(-1);
+		}
+		argv[argc++] = cp;
+		while (*cp && *cp != ' ')
+			cp++;
+		if (*cp)
+			*cp++ = '\0';
+	}
+	if (argc < minargs) {
+		printf("ERROR: too few arguments\n");
+		return(-1);
+	}
+	argv[argc] = 0;
+	if (argcp)
+		*argcp = argc;
+	return(0);
+}