initial implementation

__init__.py

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+from .nodes import NODE_CLASS_MAPPINGS, NODE_DISPLAY_NAME_MAPPINGS
+
+__all__ = ['NODE_CLASS_MAPPINGS', 'NODE_DISPLAY_NAME_MAPPINGS']

nodes.py

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+from .remove_comments import remove_comments
+
+class CDXOO_TextNodeWithComments:
+    RETURN_TYPES = ("STRING",)
+    CATEGORY = "primitives"
+    FUNCTION = "get_sanitized_string"
+
+    @classmethod
+    def INPUT_TYPES(cls):
+        return {
+            "required": {
+                "string": ("STRING", { "default": "", "multiline": True })
+            }
+        }
+
+    def get_sanitized_string(self, string):
+        return (remove_comments(string),)
+
+NODE_CLASS_MAPPINGS = {
+    "@cdxoo/text-node-with-comments": CDXOO_TextNodeWithComments
+}
+
+NODE_DISPLAY_NAME_MAPPINGS = {
+    "@cdxoo/text-node-with-comments": "Text Node With Comments (@cdxoo)"
+}
+

remove_comments.py

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+import re
+
+def remove_comments(text):
+    def replacer(match):
+        s = match.group(0)
+        if s.startswith('/'):
+            #return " " # note: a space and not an empty string
+            return "" # NOTE: an empty string instead of a space
+                      # since we dont care about wandom c expressions
+                      # like int/**/x=5
+        else:
+            return s
+    pattern = re.compile(
+        r'//.*?$|/\*.*?\*/|\'(?:\\.|[^\\\'])*\'|"(?:\\.|[^\\"])*"',
+        re.DOTALL | re.MULTILINE
+    )
+    return re.sub(pattern, replacer, text)
+

test/test_get_sanitized_string.py

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+import unittest
+from textwrap import dedent
+from remove_comments import remove_comments
+
+class TestRemoveComments(unittest.TestCase):
+    def test_ok(self):
+        str = dedent("""\
+                 foo,// bar,
+                 /*
+                 herp,
+                 derp*/
+                 quux""")
+
+        print(str);
+        print('---------------')
+        actual = remove_comments(str)
+        print(actual)
+        expected = dedent("""\
+                foo,
+
+                quux""")
+        self.assertEqual(actual, expected)
+
+if __name__ == "__main__":
+    unittest.main()