Major updates:

- A lotta cleanup
- BEd command parser rewrite
- Vase class removed
- Proper IO system.
- A lot more.

include/internal/vase/vase.h

@@ -1,12 +1,12 @@
 #pragma once
 
-#include "buffer/append.h"
-#include "buffer/original.h"
 #include "constants.h"
 #include "definitions.h"
 #include "iterators/line.h"
 #include "pch.h"
 #include "shard.h"
+#include "storage/append.h"
+#include "storage/original.h"
 
 namespace bed::internal::vase {
 struct Point {
@@ -19,103 +19,57 @@ struct Range {
   Point end;
 };
 
-struct Vase {
-  struct RegexGroup {
-    uint64_t start{0};
-    uint64_t end{0};
-  };
-
-  struct RegexMatch {
-    uint64_t start;
-    uint64_t end;
-    RegexGroup groups[9]{};
-  };
-
-  struct ReplacePart {
-    enum struct PartType {
-      FullMatch,
-      CaptureGroup,
-      Constant
-    } type;
-
-    std::variant<uint8_t, Shard *> value;
-  };
-
-  OriginalBuffer *original;
-  AppendBuffer *append;
-  Shard *root;
-
-#ifdef _WIN32
-  bool posix_ending = false;
-  bool using_crlf = true;
-#else
-  bool posix_ending = true;
-  bool using_crlf = false;
-#endif
-
-  std::filesystem::path path;
-  std::filesystem::path swapdir;
-
-  Vase(std::filesystem::path path, std::filesystem::path swapdir);
-  Vase(std::string cmd, std::filesystem::path swapdir);
-  Vase(std::filesystem::path swapdir);
-  ~Vase();
-  Vase(Vase &&other) noexcept;
-  Vase &operator=(Vase &&other) noexcept;
-  Vase(const Vase &) = delete;
-  Vase &operator=(const Vase &) = delete;
-
-  uint64_t length();
-  uint64_t lines();
-  std::string to_string();
-  std::string to_string(Range range);
-
-  Iterator iterate(uint64_t line, Direction dir);
-
-  void insert(Point *point, char key);
-  void insert(Point *point, std::string_view str);
-  void insert(Point *point, const char *data, uint64_t len);
-  void erase(Point *point, uint64_t amount, Direction dir);
-  void erase(Range range);
-  void replace(Range range, std::string_view str);
-  void replace(Range range, const char *data, uint64_t len);
-
-  void move_clusters(Point *point, uint64_t amount, Direction dir);
-  void move_lines(Point *point, uint64_t amount, Direction dir);
-  void clamp(Point *point);
-
-  void regex_search_replace(
-    std::string_view pattern, Range range,
-    std::string_view replace, std::string_view options
-  );
-
-  std::vector<Range> regex_search(
-    std::string_view pattern, Range range, std::string_view options
-  );
-
-  uint64_t find_next(std::string_view pattern, uint64_t start);
-  uint64_t find_prev(std::string_view pattern, uint64_t start);
-
-  bool undo();
-  bool redo();
-  void snapshot();
-  void prune_history(uint64_t n);
-
-  bool save();
-  bool save_swap();
-
-  uint64_t offset_of(Point point);
-  Point point_of(uint64_t offset);
-
-private:
-  std::vector<Shard *> history;
-  uint64_t history_top;
-
-  void _insert(Point *point, const char *data, uint64_t len);
-
-  std::vector<ReplacePart> parse_replace(std::string_view s);
-  std::vector<RegexMatch> _regex_search(
-    std::string_view pattern, Range range, std::string_view options
-  );
+struct RegexGroup {
+  uint64_t start{0};
+  uint64_t end{0};
 };
+
+struct RegexMatch {
+  uint64_t start;
+  uint64_t end;
+  RegexGroup groups[9]{};
+};
+
+struct ReplacePart {
+  enum struct PartType {
+    FullMatch,
+    CaptureGroup,
+    Constant
+  } type;
+  std::variant<uint8_t, Shard *> value;
+};
+
+uint64_t offset_of(Shard *root, uint64_t line);
+uint64_t offset_of(Shard *root, Point point);
+Point point_of(Shard *root, uint64_t offset);
+
+std::string to_string(Shard *root);
+std::string to_string(Shard *root, Range range);
+
+Shard *insert(AppendStorage *ap, Shard *root, Shard *text, uint64_t line);
+Shard *erase(Shard *root, uint64_t start, uint64_t end);
+Shard *copy(Shard *root, uint64_t start, uint64_t end);
+
+uint64_t find_next(Shard *root, std::string_view pattern, uint64_t start);
+uint64_t find_prev(Shard *root, std::string_view pattern, uint64_t start);
+
+Shard *substitute(
+  AppendStorage *ap, Shard *root,
+  std::string_view pattern, uint64_t start, uint64_t end,
+  std::string_view replace, std::string_view options
+);
+
+// internal
+
+void _insert(AppendStorage *ap, Shard **root, Point *point, const char *data, uint64_t len);
+Shard *insert(AppendStorage *ap, Shard *root, Point *point, char key);
+Shard *insert(AppendStorage *ap, Shard *root, Point *point, const char *data, uint64_t len);
+
+Shard *erase(Shard *root, Range range);
+Shard *replace(AppendStorage *ap, Shard *root, Range range, const char *data, uint64_t len);
+
+std::vector<ReplacePart> parse_replace(AppendStorage *ap, std::string_view s);
+std::vector<RegexMatch> _regex_search(
+  Shard *root, std::string_view pattern, uint64_t start_offset, uint64_t end_offset, std::string_view options
+);
 } // namespace bed::internal::vase