From 10ecf4d95194a273cc6aab89c3a1bcf739a194cd Mon Sep 17 00:00:00 2001
From: HombreLaser <buran@silosneeded.com>
Date: Sat, 22 Jun 2024 11:01:41 -0600
Subject: Add tokenizer

---
 src/include/tokenizer.hpp | 47 +++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 47 insertions(+)
 create mode 100644 src/include/tokenizer.hpp

(limited to 'src/include/tokenizer.hpp')

diff --git a/src/include/tokenizer.hpp b/src/include/tokenizer.hpp
new file mode 100644
index 0000000..a3f9998
--- /dev/null
+++ b/src/include/tokenizer.hpp
@@ -0,0 +1,47 @@
+#pragma once
+#include <regex>
+#include <string>
+#include <array>
+
+enum Type {
+  operand,
+  sum,
+  substraction,
+  multiplication,
+  division,
+  left_parens,
+  right_parens,
+  equals
+};
+
+struct Token {
+  Type type;
+  int value;
+};
+
+class Tokenizer {
+private:
+  // Private attributes
+  std::array<Token *, 16> tokens;
+  const std::string *to_tokenize;
+  size_t current_char_index;
+  short tokens_head;
+  // Regexes
+  std::regex operand_regex = std::regex("^0{1}|\\d+");
+  std::regex operation_regex = std::regex("\\+|-|/|\\*");
+  std::regex parens_regex = std::regex("(|)");
+  // End of private attributes
+  // Private methods
+  void clearTokens();
+  void insertToken(Type type, int value);
+  void matchOperation(const std::string &operation);
+  void matchParens(const std::string &operation);
+  void matchOperand(const std::string &operation);
+  std::string buildNumber(char *current);
+  // End of private methods 
+public:
+  Tokenizer();
+  ~Tokenizer();
+  const std::array<Token *, 16> &tokenize(const std::string &operation);
+  const std::array<Token *, 16> &getTokens();
+};
-- 
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