add class for recurrent lexer

1 files changed, 41 insertions, 0 deletions

diff --git a/include/lexer/lexer_class.h b/include/lexer/lexer_class.h
new file mode 100644
index 0000000..881ef47
--- /dev/null
+++ b/include/lexer/lexer_class.h
@@ -0,0 +1,41 @@
+#pragma once
+
+#include <string>
+#include <unordered_map>
+
+#include "lexer/enum_type.h"
+
+using namespace std;
+
+namespace ov4
+{
+
+class T_lexer
+{
+public:
+
+    // token.h
+    class T_token;
+    string trim(const string &s, const string &trim_target = " \t");
+    bool is_single_symbol(char c);
+    void bracket_depth_changer(char c, int &bracket_depth);
+    bool token_continue(const string &s, char next);
+    void token_push(const string &push_s, int bracket_depth, bool force_text = false);
+    int tokenizer(const string &s);
+
+    // ast.h
+    class T_ast;
+    string final_trim(size_t _begin, size_t _end);
+    size_t alloc_ast();
+    int get_pivot_order(enum_token_type x);
+    bool is_operator(enum_token_type x);
+    void parse(size_t cmd_begin, size_t cmd_end, size_t ast_vec);
+
+    // shared
+    std::vector<T_ast> ast;
+    std::vector<T_token> token;
+    size_t ast_index = 0;
+
+};
+
+}