feat: First stable release

arg.h

@@ -0,0 +1,80 @@
+/*
+ * arg.h
+ *  Arg parsing.
+ *
+ * Copyright (c) 2016
+ *     Christoph Lohmann <20h at r-36 dot net>
+ *
+ * This file is licensed under the MIT License.
+ *
+ * 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.
+ */
+
+/*
+ * Copy me if you can.
+ * by 20h
+ */
+
+#ifndef _ARG_H_
+#define _ARG_H_
+
+#include <stdlib.h>
+#include <stddef.h>
+extern char *argv0;
+
+/* use main(int argc, char *argv[]) */
+#define ARGBEGIN    for (argv0 = *argv, argv++, argc--;\
+                    argv[0] && argv[0][0] == '-'\
+                    && argv[0][1];\
+                    argc--, argv++) {\
+                char argc_;\
+                char **argv_;\
+                int brk_;\
+                if (argv[0][1] == '-' && argv[0][2] == '\0') {\
+                    argv++;\
+                    argc--;\
+                    break;\
+                }\
+                int i_;\
+                for (i_ = 1, brk_ = 0, argv_ = argv;\
+                        argv[0][i_] && !brk_;\
+                        i_++) {\
+                    if (argv_ != argv)\
+                        break;\
+                    argc_ = argv[0][i_];\
+                    switch (argc_)
+
+#define ARGEND          }\
+            }
+
+#define ARGC()      argc_
+
+#define EARGF(x)    ((argv[0][i_+1] == '\0' && argv[1] == NULL)?\
+                ((x), abort(), (char *)0) :\
+                (brk_ = 1, (argv[0][i_+1] != '\0')?\
+                    (&argv[0][i_+1]) :\
+                    (argc--, argv++, argv[0])))
+
+#define ARGF()      ((argv[0][i_+1] == '\0' && argv[1] == NULL)?\
+                (char *)0 :\
+                (brk_ = 1, (argv[0][i_+1] != '\0')?\
+                    (&argv[0][i_+1]) :\
+                    (argc--, argv++, argv[0])))
+
+#endif