From b7494212646ab49a4e8fd7bade83f26a15cc8ff9 Mon Sep 17 00:00:00 2001
From: HombreLaser <luisvg440@fedora.email>
Date: Sat, 5 Mar 2022 18:00:18 -0600
Subject: Commit inicial

---
 include/lexer.hpp | 41 +++++++++++++++++++++++++++++++++++++++++
 lexer.cpp         | 16 ++++++++++++++++
 2 files changed, 57 insertions(+)
 create mode 100644 include/lexer.hpp
 create mode 100644 lexer.cpp

diff --git a/include/lexer.hpp b/include/lexer.hpp
new file mode 100644
index 0000000..73c5717
--- /dev/null
+++ b/include/lexer.hpp
@@ -0,0 +1,41 @@
+#include <string>
+
+#ifndef LEXER_H
+#define LEXER_H
+
+const std::string EMPTY_STRING = ""; 
+
+enum token_type{
+  sum,
+  substraction,
+  division,
+  multiplication,
+  power,
+  variable,
+  number,
+  sin,
+  cos,
+  tan,
+  function,
+  left_parens,
+  right_parens
+};
+
+struct Token{
+  token_type type;
+  std::string value;
+};
+
+class Lexer{
+private:
+  std::string text;
+  size_t txt_ptr;
+  Token current_token;
+  void setCurrentToken(Token val);
+public:
+  Lexer(std::string text);
+  void nextToken();
+  Token getCurrentToken();
+};
+
+#endif /* LEXER_H */
diff --git a/lexer.cpp b/lexer.cpp
new file mode 100644
index 0000000..0054f5a
--- /dev/null
+++ b/lexer.cpp
@@ -0,0 +1,16 @@
+#include <string>
+#include "include/lexer.hpp"
+
+Lexer::Lexer(std::string text){
+  this->text = text;
+}
+
+void Lexer::setCurrentToken(Token val){
+  current_token = val;
+}
+
+Token Lexer::getCurrentToken(){
+  return current_token;
+}
+
+void Lexer::nextToken(){}
-- 
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