diff --git a/src/tfscript/cli.py b/src/tfscript/cli.py
index 57d236f..85b48ae 100644
--- a/src/tfscript/cli.py
+++ b/src/tfscript/cli.py
@@ -1,5 +1,13 @@
-"""CLI module for converting YAML to tfscript"""
-# https://www.w3schools.io/file/yaml-arrays/
+"""
+Command line module for making Team Fortress 2 macro scripts from
+YAML source code.
+"""
+
+__all__     = ['parseFile']
+__author__  = "Nicholas Hope <tfscript@nickhope.world"
+__date__    = "26 August 2022"
+__version__ = "1.0"
+__copyright__ = "Copyright © 2022 Nicholas Hope. See LICENSE for details."
 
 # Standard libraries
 import sys
@@ -109,10 +117,7 @@ def parseConfig(config):
         stringToWrite = tfscript.makeCFG(classDict)
         writeOutput(stringToWrite, currentClass)
 
-def main():
-    """Run as a CLI tool"""
-    global args
-    global targetDir
+def parseCLI():
     # Handle command line
     parser = argparse.ArgumentParser(
         description="Parse YAML file and produce TF2 config script."
@@ -128,6 +133,16 @@ def main():
     # positional argument: first non-hyphenated argument is input file
     parser.add_argument( 'infile', type=argparse.FileType('r'),
         help='File containing YAML to convert.')
+    return parser
+
+def main():
+    """
+    Command line interface.
+    """
+    global args
+    global targetDir
+    parser = parseCLI()
+
     args = parser.parse_args()
     if args.directory is not None:
         targetDir = args.directory