X-Git-Url: https://git.armaanb.net/?p=mmenu.git;a=blobdiff_plain;f=mmenu.c;h=d14f4a318b4608f2c13e28c205833ba130033bfa;hp=8691b45feabe662331bcc7de474ac174499f3477;hb=cfe6868b9e273efbe1cf9c783c00d72d48d0bff9;hpb=bb708b3691abc66edeb976ca3279481e11177450

diff --git a/mmenu.c b/mmenu.c
index 8691b45..d14f4a3 100644
--- a/mmenu.c
+++ b/mmenu.c
@@ -1,6 +1,8 @@
 #include <stdlib.h>
 #include <stdio.h>
 #include <stdbool.h>
+#include <string.h>
+#include <ctype.h>
 
 #include <Xm/Xm.h>
 #include <Xm/Text.h>
@@ -153,11 +155,41 @@ ArgvToXmStringTable (int argc, char **argv)
 	return new;
 }
 
+char *
+strLower(char *inp)
+{
+	char *tmp = calloc(strlen(inp), sizeof(char));
+	strcpy(tmp, inp);
+	for (int i = 0; tmp[i]; i++){
+		tmp[i] = tolower(tmp[i]);
+	}
+	return tmp;
+}
+
 int
 main(int argc, char *argv[])
 {
-	if (argc > 1) {
-		printf("Usage: %s\n", argv[0]);
+	// Parse CLI arguments
+	bool showUsage = false;
+	if (argc == 2) {
+		showUsage = true;
+		char *arg = strLower(argv[1]);
+
+		for (int i = 0; i < 5; i++) {
+			char *day = strLower(days[i]);
+
+			if (strcmp(day, arg) == 0) {
+				showUsage = false;
+				break;
+			}
+
+			free(day);
+		}
+		free(arg);
+	}
+
+	if (argc > 2 || showUsage) {
+		printf("Usage: %s [optional: day of the week]\n", argv[0]);
 		exit(3);
 	}
 
@@ -178,7 +210,7 @@ main(int argc, char *argv[])
 
 	// Create text widget to display menu
 	n = 0;
-	char *nl = getmenu("");
+	char *nl = getmenu((argv[1]) ? argv[1] : "");
 	XtSetArg(args[n], XmNvalue, nl); n++;
 	XtSetArg(args[n], XmNeditable, False); n++;
 	XtSetArg(args[n], XmNcolumns, 80); n++;