1 files changed, 65 insertions, 0 deletions

diff --git a/arg.h b/arg.h
new file mode 100644
index 0000000..0b23c53
--- /dev/null
+++ b/arg.h
@@ -0,0 +1,65 @@
+/*
+ * Copy me if you can.
+ * by 20h
+ */
+
+#ifndef ARG_H__
+#define ARG_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;\
+                                }\
+                                for (brk_ = 0, argv[0]++, argv_ = argv;\
+                                                argv[0][0] && !brk_;\
+                                                argv[0]++) {\
+                                        if (argv_ != argv)\
+                                                break;\
+                                        argc_ = argv[0][0];\
+                                        switch (argc_)
+
+/* Handles obsolete -NUM syntax */
+#define ARGNUM                          case '0':\
+                                        case '1':\
+                                        case '2':\
+                                        case '3':\
+                                        case '4':\
+                                        case '5':\
+                                        case '6':\
+                                        case '7':\
+                                        case '8':\
+                                        case '9'
+
+#define ARGEND                  }\
+                        }
+
+#define ARGC()          argc_
+
+#define ARGNUMF()       (brk_ = 1, estrtonum(argv[0], 0, INT_MAX))
+
+#define EARGF(x)        ((argv[0][1] == '\0' && argv[1] == NULL)?\
+                                ((x), abort(), (char *)0) :\
+                                (brk_ = 1, (argv[0][1] != '\0')?\
+                                        (&argv[0][1]) :\
+                                        (argc--, argv++, argv[0])))
+
+#define ARGF()          ((argv[0][1] == '\0' && argv[1] == NULL)?\
+                                (char *)0 :\
+                                (brk_ = 1, (argv[0][1] != '\0')?\
+                                        (&argv[0][1]) :\
+                                        (argc--, argv++, argv[0])))
+
+#define LNGARG()        &argv[0][0]
+
+#endif