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authorAndreas Baumann <mail@andreasbaumann.cc>2023-04-13 17:56:14 +0200
committerAndreas Baumann <mail@andreasbaumann.cc>2023-04-13 17:56:14 +0200
commit9d3b555393735e08c27b04a8b616f2736afe26de (patch)
treef483cb50a59547fdc8b03ef01dfefb8123b0292b /arg.h
downloadabase-9d3b555393735e08c27b04a8b616f2736afe26de.tar.gz
abase-9d3b555393735e08c27b04a8b616f2736afe26de.tar.bz2
created initial layout and a dummy more.c
Diffstat (limited to 'arg.h')
-rw-r--r--arg.h63
1 files changed, 63 insertions, 0 deletions
diff --git a/arg.h b/arg.h
new file mode 100644
index 0000000..aeab52a
--- /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][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(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