Use embedded mruby for portablity

include/pch.h

@@ -4,11 +4,12 @@
 #define PCRE2_CODE_UNIT_WIDTH 8
 #define PCRE_WORKSPACE_SIZE 512
 
-#pragma clang diagnostic push
-#pragma clang diagnostic ignored "-Wunused-parameter"
-#include "ruby/ruby.h"
-#pragma clang diagnostic pop
 #include <magic.h>
+#include <mruby.h>
+#include <mruby/array.h>
+#include <mruby/compile.h>
+#include <mruby/hash.h>
+#include <mruby/string.h>
 #include <nlohmann/json.hpp>
 #include <pcre2.h>
 extern "C" {

include/scripting/decl.h

@@ -4,7 +4,7 @@
 #include "syntax/decl.h"
 #include "utils/utils.h"
 
-extern std::unordered_map<std::string, std::pair<VALUE, VALUE>>
+extern std::unordered_map<std::string, std::pair<mrb_value, mrb_value>>
     custom_highlighters;
 
 void ruby_start();
@@ -14,9 +14,9 @@ void load_theme();
 void load_languages_info();
 uint8_t read_line_endings();
 void load_custom_highlighters();
-VALUE parse_custom(std::vector<Token> *tokens, VALUE parser_block,
-                   const char *line, uint32_t len, VALUE state,
-                   uint32_t line_num);
-bool custom_compare(VALUE match_block, VALUE state1, VALUE state2);
+mrb_value parse_custom(std::vector<Token> *tokens, mrb_value parser_block,
+                       const char *line, uint32_t len, mrb_value state,
+                       uint32_t c_line);
+bool custom_compare(mrb_value match_block, mrb_value state1, mrb_value state2);
 
 #endif

include/syntax/decl.h

@@ -38,10 +38,7 @@ constexpr const char tokens_def[] = "module Tokens\n"
                                     "end";
 
 constexpr const char crib_module[] = {
-#pragma clang diagnostic push
-#pragma clang diagnostic ignored "-Wc23-extensions"
 #embed "libcrib.rb"
-#pragma clang diagnostic pop
     , '\0'};
 
 extern std::array<Highlight, TOKEN_KIND_COUNT> highlights;
@@ -59,9 +56,8 @@ struct LineData {
 };
 
 struct CustomState {
-  VALUE state;
-  CustomState(VALUE s) : state(s) { rb_gc_register_address(&state); }
-  ~CustomState() { rb_gc_unregister_address(&state); }
+  mrb_value state;
+  CustomState(mrb_value s) : state(s) {}
 };
 
 #endif

include/syntax/parser.h

@@ -14,8 +14,8 @@ struct Parser {
                                       uint32_t line_num);
   bool (*state_match_func)(std::shared_ptr<void> state_1,
                            std::shared_ptr<void> state_2);
-  VALUE parser_block = Qnil;
-  VALUE match_block = Qnil;
+  mrb_value parser_block = mrb_nil_value();
+  mrb_value match_block = mrb_nil_value();
   bool is_custom{false};
   std::atomic<uint32_t> scroll_max{UINT32_MAX - 2048};
   std::atomic<bool> scroll_dirty{false};