Add clipboard buffer.

include/internal/buffer/buffer.h

@@ -1,76 +1,6 @@
 #pragma once
 
-#include "definitions.h"
-#include "internal/syntax/parser.h"
-#include "internal/syntax/ruby/parser.h"
-#include "internal/theme/theme.h"
+#include "clip.h"
+#include "decl.h"
+#include "generic.h"
 #include "pch.h"
-
-namespace bed::internal::buffer {
-struct Buffer {
-  enum {
-    Unmodified,
-    Modified,
-    Warned
-  } state;
-  std::filesystem::path save_path = "";
-
-  vase::Shard *root;
-
-  std::string name;
-  std::string language;
-  std::optional<syntax::Parser> parser;
-
-  explicit Buffer(std::string name);
-  ~Buffer();
-
-  uint64_t lines();
-  uint64_t bytes();
-  void load(BEd &ctx, vase::Shard *text);
-  vase::Shard *copy(uint64_t start_line, uint64_t end_line);
-  void substitute(
-    BEd &ctx, uint64_t start_line, uint64_t end_line,
-    std::string &regex, std::string &replacement, std::string &options
-  );
-  void join(BEd &ctx, uint64_t start_line, uint64_t end_line);
-  void remove(BEd &ctx, uint64_t start_line, uint64_t end_line);
-  void append(BEd &ctx, vase::Shard *text, uint64_t line);
-  void print(BEd &ctx, uint64_t start_line, uint64_t end_line);
-  void number_print(BEd &ctx, uint64_t start_line, uint64_t end_line);
-  std::string list_string(std::string_view s);
-};
-
-struct Line {
-  std::string buffername;
-  uint64_t number;
-};
-
-struct Range {
-  std::string buffername;
-  uint64_t start;
-  uint64_t end;
-
-  explicit Range(const Line &a, const Line &b) {
-    if (a.buffername != b.buffername)
-      throw ed_error("Invalid range.");
-    if (a.number > b.number)
-      throw ed_error("Invalid range.");
-    buffername = a.buffername;
-    start = a.number;
-    end = b.number;
-  };
-
-  explicit Range(std::string buffername, uint64_t start, uint64_t end)
-      : buffername(buffername), start(start), end(end) {
-    if (start > end)
-      throw ed_error("Invalid range.");
-  };
-
-  explicit Range() : buffername("default"), start(0), end(0) {};
-};
-
-using Address = std::variant<
-  std::string,
-  buffer::Range,
-  buffer::Line>;
-} // namespace bed::internal::buffer