Some fixes and command line switches parsing

error.c

@@ -42,7 +42,10 @@
 static const int error_color[] = {
 	CON_RED,
 	CON_CYAN,
-	CON_MAGENTA
+	CON_MAGENTA,
+	CON_BLUE,
+	CON_BROWN,
+	CON_WHITE
 };
 #endif
 int error_total = 0;
@@ -51,7 +54,8 @@ int error_max   = 10;
 static const char *const error_list[] = {
 	"Parsing Error:",
 	"Lexing Error:",
-	"Internal Error:"
+	"Internal Error:",
+	"Compilation Error:"
 };
 
 int error(int status, const char *msg, ...) {

gmqcc.h

@@ -1,7 +1,24 @@
 /*
- * Compiler error system, this handles the error printing, and managing
- * such as after so many errors just stop the compilation, and other
- * intereting like colors for the console.
+ * Copyright (C) 2012 
+ * 	Dale Weiler
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy of
+ * this software and associated documentation files (the "Software"), to deal in
+ * the Software without restriction, including without limitation the rights to
+ * use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies
+ * of the Software, and to permit persons to whom the Software is furnished to do
+ * so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+ * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+ * SOFTWARE.
  */
 #ifndef DPQCC_HDR
 #define DPQCC_HDR
@@ -166,6 +183,7 @@ struct lex_file *lex_open (const char *);
 #define ERROR_LEX      (SHRT_MAX+0)
 #define ERROR_PARSE    (SHRT_MAX+1)
 #define ERROR_INTERNAL (SHRT_MAX+2)
+#define ERROR_COMPILER (SHRT_MAX+3)
 int error(int, const char *, ...);
 
 /* parse.c */

main.c

@@ -20,15 +20,49 @@
  * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
  * SOFTWARE.
  */
+#include <stdlib.h>
+#include <string.h>
+#include <limits.h>
+#include <sys/stat.h>
 #include "gmqcc.h"
 
+int usage(const char *name) {
+	printf("Usage: %s -f infile -o outfile\n", name);
+	return 0;
+}
+
 int main(int argc, char **argv) {
-	if (argc <= 1) {
-		printf("Usage: %s infile.qc outfile\n", *argv);
-		return -1;
+	struct      stat chk;
+	const char *ofile = NULL;
+	const char *ifile = NULL;
+	int i;
+	if (argc <= 2)
+		return usage(*argv);
+		
+	for (i=0; i<argc; i++) {
+		if (argc != i + 1) {
+			switch(argv[i][0]) {
+				case '-':
+					switch(argv[i][1]) {
+						case 'f': ifile = argv[i+1]; break;
+						case 'o': ofile = argv[i+1]; break;
+					}
+					break;
+			}
+		}
 	}
 	
-	struct lex_file *lex = lex_open(argv[1]);
+	if (!ofile || !ifile)
+		return usage(*argv);
+	
+	printf("ifile: %s\n", ifile);
+	printf("ofile: %s\n", ofile);
+	
+	/* we check here for file existance, not in the lexer */
+	if (stat(ifile, &chk) != 0)
+		return error(ERROR_COMPILER, "source file `%s` not found\n", ifile);
+	
+	struct lex_file *lex = lex_open(ifile);
 	lex_debug(lex);
 	parse    (lex);
 	lex_close(lex);