diff --git a/meson.build b/meson.build
index c0fdc5f..f9620c3 100644
--- a/meson.build
+++ b/meson.build
@@ -1,5 +1,6 @@
 project('oak', ['cpp'],
   version: '0.1.0',
+  default_options : ['cpp_std=c++20'],
 )
 
 add_project_arguments('-fPIC', language: 'cpp')
diff --git a/src/faust-lib/parser/faustLexer.h b/src/faust-lib/parser/faustLexer.h
index a7480fc..c3cb8f2 100644
--- a/src/faust-lib/parser/faustLexer.h
+++ b/src/faust-lib/parser/faustLexer.h
@@ -51,4 +51,6 @@ private:
 protected:
 };
 
+typedef Lexer<FaustTokens>::Lexeme FaustLexeme;
+
 } // namespace faust
diff --git a/src/faust-lib/parser/lexer.h b/src/faust-lib/parser/lexer.h
index 1e3ea8d..e10a2e3 100644
--- a/src/faust-lib/parser/lexer.h
+++ b/src/faust-lib/parser/lexer.h
@@ -6,10 +6,11 @@
 #include <stdexcept>
 
 #include "unicode/regex.h"
+#include "unicode/utypes.h"
+
 
 #include "faust-lib/common/core.h"
 #include "faust-lib/common/vector.h"
-#include "unicode/utypes.h"
 
 namespace faust {
 
diff --git a/src/faust-lib/parser/parser.cpp b/src/faust-lib/parser/parser.cpp
index 2112112..db9efed 100644
--- a/src/faust-lib/parser/parser.cpp
+++ b/src/faust-lib/parser/parser.cpp
@@ -1,5 +1,10 @@
 #include "parser.h"
 
-faust::Parser::Parser(String input) {
-  // TODO: Implement
+faust::AstNodePtr faust::parseFaustProgram(const std::vector<faust::FaustLexeme> &tokens) {
+  auto filteredTokens = tokens;
+  std::erase_if(filteredTokens, [](const faust::FaustLexeme &lexeme) {
+    return lexeme.token == faust::FaustTokens::TK_COMMENT || lexeme.token == faust::FaustTokens::TK_MULTILINE_COMMENT;
+  });
+  
+  return nullptr;
 }
diff --git a/src/faust-lib/parser/parser.h b/src/faust-lib/parser/parser.h
index 37d5da4..2f6eef2 100644
--- a/src/faust-lib/parser/parser.h
+++ b/src/faust-lib/parser/parser.h
@@ -1,15 +1,15 @@
 #pragma once
 
-#include "faust-lib/common/string.h"
+#include <memory>
+
+#include "faust-lib/common/core.h"
+#include "faust-lib/parser/faustLexer.h"
 
 namespace faust {
 
-class Parser {
-public:
-  Parser(String input);
+class AstNode;
+typedef std::shared_ptr<AstNode> AstNodePtr;
 
-private:
-protected:
-};
+AstNodePtr parseFaustProgram(const Vector<FaustLexeme> &tokens);
 
 } // namespace faust