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authorChristoph Lohmann <20h@r-36.net>2012-04-15 23:08:48 +0200
committerChristoph Lohmann <20h@r-36.net>2012-04-15 23:08:48 +0200
commite2c236b300e4fa9f4f7fdb672251892c2be3e149 (patch)
tree7b5781929b5f0ff95edbc7e4c18339910cff5d22 /arg.h
downloadnldev-e2c236b300e4fa9f4f7fdb672251892c2be3e149.tar.bz2
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Initial commit.
Diffstat (limited to 'arg.h')
-rw-r--r--arg.h41
1 files changed, 41 insertions, 0 deletions
diff --git a/arg.h b/arg.h
new file mode 100644
index 0000000..6414822
--- /dev/null
+++ b/arg.h
@@ -0,0 +1,41 @@
+/*
+ * Copy me if you can.
+ * by 20h
+ */
+
+#ifndef __ARG_H__
+#define __ARG_H__
+
+extern char *argv0;
+
+#define USED(x) ((void)(x))
+
+#define ARGBEGIN for (argv0 = *argv, argv++, argc--;\
+ argv[0] && argv[0][1]\
+ && argv[0][0] == '-';\
+ argc--, argv++) {\
+ char _argc;\
+ char **_argv;\
+ if (argv[0][1] == '-' && argv[0][2] == '\0') {\
+ argv++;\
+ argc--;\
+ break;\
+ }\
+ for (argv[0]++, _argv = argv; argv[0][0];\
+ argv[0]++) {\
+ if (_argv != argv)\
+ break;\
+ _argc = argv[0][0];\
+ switch (_argc)
+
+#define ARGEND }\
+ USED(_argc);\
+ }\
+ USED(argv);\
+ USED(argc);
+
+#define EARGF(x) ((argv[1] == NULL)? ((x), abort(), (char *)0) :\
+ (argc--, argv++, argv[0]))
+
+#endif
+