Fix parsing bugs and add better indentation support

include/editor/helpers.h

@@ -17,6 +17,8 @@ void fetch_lsp_hover(Editor *editor);
 void handle_mouse(Editor *editor, KeyEvent event);
 void indent_current_line(Editor *editor);
 void dedent_current_line(Editor *editor);
+void indent_selection(Editor *editor);
+void dedent_selection(Editor *editor);
 void paste(Editor *editor);
 void copy(Editor *editor);
 void cut(Editor *editor);

include/editor/indents.h

@@ -112,12 +112,18 @@ struct IndentationEngine {
   uint32_t set_indent(uint32_t row, int64_t indent_level);
   uint32_t indent_line(uint32_t row);
   uint32_t dedent_line(uint32_t row);
+  void indent_block(uint32_t start_row, uint32_t end_row, int delta);
   void indent_block(uint32_t start, uint32_t end);
   void dedent_block(uint32_t start, uint32_t end);
   // fixes a autocomplete block's indentation
   char *block_to_asis(Coord cursor, std::string source, uint32_t *out_len);
 
 private:
+  const std::vector<std::string> *start_end = nullptr;
+  const std::vector<std::string> *start_start = nullptr;
+  const std::vector<std::string> *end_full = nullptr;
+  const std::vector<std::string> *end_start = nullptr;
+
   // TODO: Ignore comments/strings too
   // returns the indent level of the line itself or of the previous non-empty
   uint32_t indent_expected(uint32_t row);

include/lsp/lsp.h

@@ -6,12 +6,17 @@
 #include "utils/utils.h"
 
 struct LSPPending {
-  std::string method;
   Editor *editor = nullptr;
-
-  std::function<void(Editor *, std::string, json)> callback;
+  std::function<void(Editor *, const json &)> callback;
 };
 
+// TODO: Defer any editor mutation to main thread to get rid of
+//       all mutex locks on the editor rope.
+// struct LSPPendingResponse {
+//   LSPPending *pending = nullptr;
+//   json message;
+// };
+
 struct LSPOpenRequest {
   Language language;
   Editor *editor;

include/syntax/parser.h

@@ -23,7 +23,7 @@ struct Parser {
   UniqueQueue<uint32_t> dirty_lines;
 
   Parser(Editor *editor, std::string n_lang, uint32_t n_scroll_max);
-  void edit(uint32_t start_line, uint32_t old_end_line, uint32_t inserted_rows);
+  void edit(uint32_t start_line, uint32_t removed_rows, uint32_t inserted_rows);
   void work();
   void scroll(uint32_t line);
 };