move command definitions (as well as helpers) to macros

1 files changed, 32 insertions, 0 deletions

diff --git a/src/command.h b/src/command.h
new file mode 100644
index 0000000..9aeb07e
--- /dev/null
+++ b/src/command.h
@@ -0,0 +1,32 @@
+#ifndef COMMAND_H
+#define COMMAND_H
+
+#include <stdio.h>
+#include "common.h"
+
+#define COMMAND(GROUP, COMMAND)\
+int GROUP##_##COMMAND(int argc, char** argv)
+
+
+#define COMMAND_HELP(GROUP, MSG) \
+    COMMAND(GROUP, help) \
+    { \
+        fprintf(stderr, USAGE_STR MSG " <command>\n\nList of commands:\n"); \
+        print_help(GROUP##_commands, ARRAY_LEN(GROUP##_commands)); \
+        return 0; \
+    }
+
+#define COMMAND_GROUP(GROUP) \
+    int GROUP(int argc, char** argv) \
+
+
+#define COMMAND_GROUP_FUNC(GROUP) \
+    COMMAND_GROUP(GROUP) \
+    { \
+        if (argc > 1) \
+            for (int i = 0; i < ARRAY_LEN(GROUP##_commands); ++i) \
+                if (!strcmp(GROUP##_commands[i].name, argv[1])) return GROUP##_commands[i].func(argc-1, argv+1); \
+        return GROUP##_help(argc-1, argv+1); \
+    }
+
+#endif
\ No newline at end of file