Reqrite project as BEd specific.

include/internal/commands/commands.h

@@ -0,0 +1,30 @@
+#pragma once
+
+#include "definitions.h"
+#include "internal/trie/trie.h"
+#include "pch.h"
+
+namespace bed::internal::commands {
+struct Command {
+  enum struct AddressMode : uint8_t {
+    None,
+    Single,
+    Range
+  } address_mode;
+
+  enum struct SuffixKind : uint8_t {
+    None,
+    Suffix,
+    Argument,
+    Continuation
+  } suffix;
+
+  std::string desc;
+
+  bool accept_zero;
+
+  void (*handle)(BEd &, std::span<const uint64_t>, std::string_view);
+
+  static void register_posix(BEd &ctx);
+};
+} // namespace bed::internal::commands