Minify C++ code

cppminify.py

import re
import sys

def minify_cpp_code(code):
    # Remove comments:
    # Turn single-line comments into multi-line comments
    code = re.sub(re.compile(r'//(.*?)\n'), '/*\\1*/', code)
    # Remove multi-line comments
    code = re.sub(re.compile(r'/\*.*?\*/', re.DOTALL), '', code)
    # Preprocessing directives must remain on separate lines.
    # Add a special marker to the end of each #directive
    # to insert back newlines later
    code = re.sub(re.compile(r'(#.*)'), '\\1\255', code)
    # Remove newlines and excess whitespace
    code = re.sub(re.compile(r'\s+'), ' ', code)
    code = re.sub(re.compile(r'\s*;\s*'), ';', code)
    code = re.sub(re.compile(r'\s*{\s*'), '{', code)
    code = re.sub(re.compile(r'\s*}\s*'), '}', code)
    code = re.sub(re.compile(r'\s*\(\s*'), '(', code)
    code = re.sub(re.compile(r'\s*\)\s*'), ')', code)
    code = re.sub(re.compile(r'\s*,\s*'), ',', code)
    # Restore newlines after each #directive
    code = re.sub(re.compile('(#[^#]+)\255'), '\n\\1\n', code)
    # Remove empty and whitespace lines
    code = re.sub(re.compile(r'\n\s*\n'), '\n', code)    
    return code.strip()

'''
# Example usage:
cpp_code = """
#include <iostream>
// This is a comment
int main() {
    /* This is a
       multi-line comment */
    std::cout << "Hello, World!" << std::endl; // Print Hello, World!
    return 0;
}
"""
minified_code = minify_cpp_code(cpp_code)
print(minified_code)
'''
if __name__ == '__main__':
    with open(sys.argv[1], 'r') as file:
        file_contents = file.read()
        print(minify_cpp_code(file_contents))