--- a/baum.c	Tue Feb 12 15:53:08 2008 +0100
+++ b/baum.c	Wed Feb 13 09:13:02 2008 +0100
@@ -14,13 +14,19 @@
 #include "baum.h"
 #include "actions.h"
 
+#define VERSION "0.1"
+
+int option_check = 0;
+int option_verbose = 0;
 
 struct Node* root = 0;
 struct Stackitem* stack = NULL;
 
 
 void logit(char* text) {
-	fprintf(stderr, "[%s]\n", text);
+	if (option_verbose) {
+		fprintf(stderr, "[%s]\n", text);
+	}
 }
 
 
@@ -164,7 +170,9 @@
 
 		if (c == '\n') {  /* end of line: create node */
 			if (strlen(name) > 0) {
-				fprintf(stderr, " %d - %s - %d\n", indent, name, value);
+				if (option_verbose) {
+					fprintf(stderr, " %d - %s - %d\n", indent, name, value);
+				}
 				/* create node */
 				node = newNode((char*) name, value);
 				if (indent > last_indent) { /* down */
@@ -212,13 +220,54 @@
 int main(int argc, char* argv[]) {
 	unsigned char shell_return = 0;
 	
-	read_input("./input_sum3input");
-	printTree(root);
+	while (--argc > 0 && (*++argv)[0] == '-') {
+		if (strcmp(argv[0], "--version") == 0) {
+			printf("baum %s\n\
+an esoteric programming language\n\
+by markus schnalke and julian forster\n\
+http://prog.marmaro.de/baum\n", VERSION);
+			exit(0);
+		} else if (strcmp(argv[0], "--help") == 0) {
+			printf("\
+baum --version        print version information and exit\n\
+baum --help           print this output\n\
+baum [-v] -c <file>   (verbosly) check file and return 1 if invalid\n\
+baum [-v] <file>      (verbosly) run file\n\
+					");
+			exit(0);
+		} else if (strcmp(argv[0], "-c") == 0) {
+			option_check = 1;
+		} else if (strcmp(argv[0], "-v") == 0) {
+			option_verbose = 1;
+			/*
+		} else if (strcmp(argv[0], "-W") == 0) {
+			/ * TODO: catch if no value given * /
+			iDWarn = atoi((++argv)[0]);
+			argc--;
+			*/
+		} else {
+			fprintf(stderr, "unknown option: %s\n", argv[0]);
+			exit(127);
+		}
+	}
+
+	if (argc != 1) {
+		fprintf(stderr, "%d source files given, please specify one.\n", argc);
+		exit(3);
+	}
+
+	read_input(argv[0]);
+
+	if (option_verbose) {
+		printTree(root);
+	}
 
 	shell_return = action(root);
 
-	printTree(root);
+	if (option_verbose) {
+		printTree(root);
+	}
+
 	delete(root);
-
 	exit(shell_return);
 }