applied 3 additional patches by Dimitris

[sic.git] / arg.h

diff --git a/arg.h b/arg.h
new file mode 100644 (file)
index 0000000..4df77a7
--- /dev/null
+++ b/arg.h
@@ -0,0 +1,63 @@
+/*
+ * 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][1]\
+                                       && argv[0][0] == '-';\
+                                       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(base)  (brk_ = 1, estrtol(argv[0], (base)))
+
+#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])))
+
+#endif