first commit

remove_comments.py

@@ -0,0 +1,38 @@
+#!/usr/bin/env python3
+"""Remove all C/C++ comments from a file."""
+
+import sys
+import re
+
+
+def remove_comments(source):
+    pattern = re.compile(
+        r'//.*?$|/\*.*?\*/|"(?:\\.|[^"\\])*"|\'(?:\\.|[^\'\\])*\'',
+        re.DOTALL | re.MULTILINE,
+    )
+
+    def replacer(match):
+        s = match.group(0)
+        if s.startswith("/"):
+            return " " if s.startswith("/*") else ""
+        return s
+
+    return pattern.sub(replacer, source)
+
+
+if __name__ == "__main__":
+    if len(sys.argv) < 2:
+        print(f"Usage: {sys.argv[0]} <file> [--inplace]", file=sys.stderr)
+        sys.exit(1)
+
+    path = sys.argv[1]
+    inplace = "--inplace" in sys.argv
+
+    with open(path) as f:
+        result = remove_comments(f.read())
+
+    if inplace:
+        with open(path, "w") as f:
+            f.write(result)
+    else:
+        print(result, end="")