add CleaningString

__init__.py

@@ -1,6 +1,8 @@
+from .nodes.cleaning_string import CleaningString
 from .nodes.string_list_concat import StringListConcat, comfy_entrypoint
 
 __all__ = [
     "StringListConcat",
+    "CleaningString",
     "comfy_entrypoint"
 ]

nodes/cleaning_string.py

@@ -0,0 +1,40 @@
+import re
+
+from typing_extensions import override
+from comfy_api.latest import ComfyExtension, io
+
+
+class CleaningString(io.ComfyNode):
+    """Cleans a string by normalizing line breaks, commas, and spaces."""
+
+    @classmethod
+    def define_schema(cls) -> io.Schema:
+        return io.Schema(
+            node_id="CleaningString",
+            display_name="Cleaning String",
+            category="tttamaki/string-list",
+            description="Cleans line breaks, empty comma-separated values, and repeated spaces",
+            inputs=[
+                        io.String.Input("string", multiline=True),
+            ],
+            outputs=[
+                io.String.Output(),
+            ],
+        )
+
+    @classmethod
+    def execute(cls, string: str) -> io.NodeOutput:
+        result = re.sub(r"[\r\n]+", " ", string)
+        result = re.sub(r",[ \t]+,", ",", result)
+        result = re.sub(r" {2,}", " ", result)
+        return io.NodeOutput(result)
+
+
+class CleaningStringExtension(ComfyExtension):
+    @override
+    async def get_node_list(self) -> list[type[io.ComfyNode]]:
+        return [CleaningString]
+
+
+async def comfy_entrypoint() -> CleaningStringExtension:
+    return CleaningStringExtension()