Add tree-sitter grammars for common languages I use.

src/editor.cc

@@ -6,12 +6,13 @@ extern "C" {
 #include "../include/main.h"
 #include "../include/utils.h"
 
-Editor *new_editor(const char *filename, Coord position, Coord size) {
+Editor *new_editor(const char *filename_arg, Coord position, Coord size) {
   Editor *editor = new Editor();
   if (!editor)
     return nullptr;
   uint32_t len = 0;
-  char *str = load_file(filename, &len);
+  std::string filename = path_abs(filename_arg);
+  char *str = load_file(filename.c_str(), &len);
   if (!str) {
     free_editor(editor);
     return nullptr;
@@ -23,7 +24,7 @@ Editor *new_editor(const char *filename, Coord position, Coord size) {
   editor->cursor_preffered = UINT32_MAX;
   editor->root = load(str, len, optimal_chunk_size(len));
   free(str);
-  Language language = language_for_file(filename);
+  Language language = language_for_file(filename.c_str());
   if (language.name != "unknown" && len <= (1024 * 128)) {
     editor->ts.parser = ts_parser_new();
     editor->ts.language = language.fn();
@@ -57,6 +58,17 @@ void free_editor(Editor *editor) {
   delete editor;
 }
 
+void save_file(Editor *editor) {
+  if (!editor || !editor->root)
+    return;
+  char *str = read(editor->root, 0, editor->root->char_count);
+  if (!str)
+    return;
+  std::ofstream out(editor->filename);
+  out.write(str, editor->root->char_count);
+  free(str);
+}
+
 void render_editor(Editor *editor) {
   uint32_t sel_start = 0, sel_end = 0;
   uint32_t numlen =

src/editor_events.cc

@@ -2,6 +2,7 @@
 #include "../include/main.h"
 #include "../include/ts.h"
 #include <cstdint>
+#include <sys/ioctl.h>
 
 void handle_editor_event(Editor *editor, KeyEvent event) {
   static std::chrono::steady_clock::time_point last_click_time =
@@ -294,6 +295,9 @@ void handle_editor_event(Editor *editor, KeyEvent event) {
       case ',':
         dedent_line(editor, editor->cursor.row);
         break;
+      case CTRL('s'):
+        save_file(editor);
+        break;
       case 'p':
         uint32_t len;
         char *text = get_from_clipboard(&len);

src/utils.cc

@@ -21,11 +21,14 @@ static std::string percent_encode(const std::string &s) {
   return out;
 }
 
-std::string path_to_file_uri(const std::string &path_str) {
+std::string path_abs(const std::string &path_str) {
   namespace fs = std::filesystem;
   fs::path p = fs::weakly_canonical(fs::absolute(fs::path(path_str)));
-  std::string generic = p.generic_string();
-  return "file://" + percent_encode(generic);
+  return p.generic_string();
+}
+
+std::string path_to_file_uri(const std::string &path_str) {
+  return "file://" + percent_encode(path_abs(path_str));
 }
 
 uint64_t fnv1a_64(const char *s, size_t len) {