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Fix: inconsistencies between file format backends

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In msword_backend.py, the _add_header method has logic that seems to artificially limit the heading depth:
pythondef _add_header(self, doc: DoclingDocument, curr_level: Optional[int], text: str, is_numbered_style: bool = False) -> None:
    # ...
    if isinstance(curr_level, int):
        # ...
    else:
        current_level = self.level
        parent_level = self.level - 1
        add_level = 1  # <-- This is the problem!
When curr_level is None (which happens when the heading style doesn't have a clear level number), it defaults to add_level = 1, effectively flattening deeper headings.

The correct handling, instead, would be to also subtract 1, with minimum of 1:

else:
        current_level = self.level
        parent_level = self.level - 1
        add_level = max(1, self.level - 1)  # Also subtract 1, with minimum of 1

Signed-off-by: Artus Krohn-Grimberghe <artuskg@users.noreply.github.com>
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Artus Krohn-Grimberghe 2025-06-18 15:49:25 +02:00 committed by GitHub
parent 42af299fa2
commit 5501dc5725
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1 changed files with 1 additions and 1 deletions
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docling/backend/msword_backend.py
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@ -878,7 +878,7 @@ class MsWordDocumentBackend(DeclarativeDocumentBackend):
else:
current_level = self.level
parent_level = self.level - 1
add_level = 1
add_level = max(0, self.level - 1)
if is_numbered_style:
if add_level in self.numbered_headers: