Major code cleanup.

include/utils.h

@@ -6,6 +6,9 @@
 #include <queue>
 #include <string>
 
+#define PCRE2_CODE_UNIT_WIDTH 8
+#define PCRE_WORKSPACE_SIZE 512
+
 template <typename T> struct Queue {
   std::queue<T> q;
   std::mutex m;
@@ -28,6 +31,11 @@ template <typename T> struct Queue {
   }
 };
 
+struct Coord {
+  uint32_t row;
+  uint32_t col;
+};
+
 uint32_t grapheme_strlen(const char *s);
 uint32_t get_visual_col_from_bytes(const char *line, uint32_t byte_limit);
 uint32_t get_bytes_from_visual_col(const char *line,