diff --git a/.github/workflows/python-package.yml b/.github/workflows/python-package.yml
new file mode 100644
index 0000000..e1e8d91
--- /dev/null
+++ b/.github/workflows/python-package.yml
@@ -0,0 +1,63 @@
+# This workflow will install Python dependencies, run tests and lint with a variety of Python versions
+# For more information see: https://docs.github.com/en/actions/automating-builds-and-tests/building-and-testing-python
+
+name: Python package
+
+on:
+  push:
+    branches: [ "main" ]
+  pull_request:
+
+jobs:
+  build:
+
+    runs-on: ubuntu-latest
+    strategy:
+      fail-fast: false
+      matrix:
+        python-version: ["3.8", "3.9", "3.10", "3.11", "3.12"]
+
+    steps:
+    - uses: actions/checkout@v3
+    - name: Set up Python ${{ matrix.python-version }}
+      uses: actions/setup-python@v3
+      with:
+        python-version: ${{ matrix.python-version }}
+    - name: Install dependencies
+      run: |
+        python -m pip install --upgrade pip
+        pip install -e .[tests]
+    - name: Lint with flake8
+      run: |
+        # stop the build if there are Python syntax errors or undefined names
+        flake8 . --count --select=E9,F63,F7,F82 --show-source --statistics
+    - name: Test with pytest
+      env:
+        GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
+      run: |
+        pytest --cov=src
+        coveralls --service=github
+        
+  flake8:
+    runs-on: ubuntu-latest
+    strategy:
+      fail-fast: false
+      matrix:
+        python-version: ["3.8"]
+    steps:
+    - uses: actions/checkout@v3
+    - name: Set up Python ${{ matrix.python-version }}
+      uses: actions/setup-python@v3
+      with:
+        python-version: ${{ matrix.python-version }}
+    - name: Install dependencies
+      run: |
+        python -m pip install --upgrade pip
+        pip install -e .[tests]
+    - name: Lint with flake8
+      run: |
+        # stop the build if there are Python syntax errors or undefined names
+        flake8 . --count --show-source --statistics
+    - name: Static Test with Mypy
+      run: |
+        mypy src/
diff --git a/pyproject.toml b/pyproject.toml
new file mode 100644
index 0000000..de7c184
--- /dev/null
+++ b/pyproject.toml
@@ -0,0 +1,48 @@
+[build-system]
+requires = ["setuptools>=61.0"]
+build-backend = "setuptools.build_meta"
+
+[project]
+name = "vba_stdlib"
+version = "0.0.1"
+authors = [
+  { name="Kevin Nowaczyk", email="beakerboy99@yahoo.com" },
+]
+description = "VBA Standard Library."
+readme = "README.md"
+requires-python = ">=3.7"
+classifiers = [
+    "Programming Language :: Python :: 3",
+    "License :: OSI Approved :: MIT License",
+    "Operating System :: OS Independent",
+]
+dependencies = [
+  'antlr4-python3-runtime',
+  'antlr4-tools',
+  'antlr4-vba',
+  'python-dateutil',
+]
+[project.optional-dependencies]
+tests = [
+  'coveralls',
+  'flake8-annotations',
+  'mypy',
+  'pep8-naming',
+  'pytest',
+  'pytest-cov',
+  'pytest-mock',
+  'types-antlr4-python3-runtime',
+  'types-python-dateutil',
+]
+[project.urls]
+"Homepage" = "https://github.com/Beakerboy/VBA-Linter"
+"Bug Tracker" = "https://github.com/Beakerboy/VBA-Linter/issues"
+
+[tool.setuptools.package-data]
+"vba_stdlib" = ["py.typed"]
+
+[tool.pytest.ini_options]
+pythonpath = "src:tests"
+testpaths = [
+    "tests",
+]
diff --git a/src/vba_stdlib/__init__.py b/src/vba_stdlib/__init__.py
new file mode 100644
index 0000000..e69de29
diff --git a/src/vba_stdlib/like_pattern_converer.py b/src/vba_stdlib/like_pattern_converer.py
new file mode 100644
index 0000000..7e4b3d3
--- /dev/null
+++ b/src/vba_stdlib/like_pattern_converer.py
@@ -0,0 +1,5 @@
+from antlr4_vba.vba_likeVisitor import vba_likeVisitor
+
+
+class LikePatternConverter(vba_likeVisitor):
+    pass
diff --git a/src/vba_stdlib/literal_factory.py b/src/vba_stdlib/literal_factory.py
new file mode 100644
index 0000000..fee5791
--- /dev/null
+++ b/src/vba_stdlib/literal_factory.py
@@ -0,0 +1,52 @@
+import re
+from dateutil.parser import parse
+from typing import Any
+
+
+def literal_from_string(value: str) -> Any:
+    """
+    Create a VBA literal type from a string.
+    """
+    boolean_pattern = "TRUE|FALSE"
+    hex_pattern = r"&H[\dA-F]+"
+    oct_pattern = "&[Oo]?[0-7]+"
+    dec_pattern = r"\d+"
+    date_pattern = "##"
+    exp = r"[DEde][+-]?\d\d*"
+    float_pattern1 = r"\.\d\d*(" + exp + ")?"
+    float_pattern2 = r"\d\d*" + exp
+    float_pattern3 = r"\d\d*\.(\d\d*)?(" + exp + ")?"
+
+    # Date Literal
+    sep = "([ ]+|([]*[/-][]*))"
+    eng_month = ("(JANUARY|FEBRUARY|MARCH|APRIL|MAY|JUNE" +
+                 "|JULY|AUGUST|SEPTEMBER|OCTOBER|NOVEMBER|DECEMBER)")
+    month_abv = "(JAN|FEB|MAR|APR|JUN|JUL|AUG|SEP|OCT|NOV|DEC)"
+    month_name = "(" + eng_month + "|" + month_abv + ")"
+    date_val_part = r"(\d+|" + month_name + ")"
+    date = (date_val_part + sep + date_val_part +
+            "(" + sep + date_val_part + ")?")
+    time_pattern1 = r"(\d+(AM|PM|A|P))"
+    time_pattern2 = r"(\d+[ ]?[:.][ ]?\d+([ ]?[:.][ ]?\d+)?)"
+    time_pattern = "(" + time_pattern1 + "|" + time_pattern2 + ")"
+    date_pattern = date + "([ ]+" + time_pattern + ")?"
+    if re.fullmatch(boolean_pattern, value.upper()):
+        return value.upper() == "TRUE"
+    if re.fullmatch(hex_pattern, value):
+        return int("0x" + value[2:], 16)
+    if re.fullmatch(oct_pattern, value):
+        start = 2 if value[1].upper() == 'O' else 1
+        return int(value[start:], 8)
+    if re.fullmatch(dec_pattern, value):
+        return int(value)
+    if (re.fullmatch(float_pattern1, value) or
+            re.fullmatch(float_pattern2, value) or
+            re.fullmatch(float_pattern3, value)):
+        return float(value)
+    if value[-1] == '"' and value[0] == '"':
+        return value[1:-1]
+    if (re.fullmatch("#" + date_pattern + "#", value) or
+            re.fullmatch("#" + time_pattern + "#", value)):
+        return parse(value[1:-1])
+    # assume non-quoted string.
+    return value
diff --git a/src/vba_stdlib/py.typed b/src/vba_stdlib/py.typed
new file mode 100644
index 0000000..e69de29
diff --git a/tests/Unit/test_int.py b/tests/Unit/test_int.py
new file mode 100644
index 0000000..bfc52e3
--- /dev/null
+++ b/tests/Unit/test_int.py
@@ -0,0 +1,13 @@
+from vba_stdlib.literal_factory import literal_from_string
+
+
+def test_decimal() -> None:
+    assert literal_from_string("10") == 10
+
+
+def test_hex() -> None:
+    assert literal_from_string("&HA") == 10
+
+
+def test_oct() -> None:
+    assert literal_from_string("&O12") == 10