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Handle formatting properly for DocItemLabel.PARAGRAPH

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Signed-off-by: SimJeg <sjegou@nvidia.com>
This commit is contained in:
SimJeg 2025-03-31 14:36:29 +02:00
parent d3362d1553
commit 094a674bf3
1 changed files with 29 additions and 39 deletions
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60
docling/backend/msword_backend.py
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@ -274,45 +274,25 @@ class MsWordDocumentBackend(DeclarativeDocumentBackend):
underline=run.underline if run.underline is not None else False,
)
def format_text(self, text: str, format: Formatting) -> str:
"""
Apply bold, italic, and underline markdown styles to a text
"""
# Exclude leading and trailing spaces from style
prefix, text, suffix = re.match(r"(^\s*)(.*?)(\s*$)", text, re.DOTALL).groups()
# Apply style
if format.bold:
text = f"**{text}**"
if format.italic:
text = f"*{text}*"
if format.underline:
text = f"<u>{text}</u>"
# Add back leading and trailing spaces
text = prefix + text + suffix
return text
def format_paragraph(self, paragraph):
def format_paragraph(self, paragraph: Paragraph) -> list[tuple[str, Formatting, str]]:
"""
Apply hyperlink, bold, italic, and underline markdown styles to a paragraph
"""
paragraph_text = ""
paragraph_elements = []
group_text = ""
previous_format = None
hyperlink = None
# Iterate over the runs of the paragraph and group them by format
for c in paragraph.iter_inner_content():
if isinstance(c, Hyperlink):
text = f"[{c.text}]({c.address})"
format = self.get_format_from_run(c.runs[0])
text = c.text
hyperlink = c.address
format = self.get_format_from_run(c.runs[0])
elif isinstance(c, Run):
text = c.text
hyperlink = None
format = self.get_format_from_run(c)
else:
continue
@ -320,21 +300,27 @@ class MsWordDocumentBackend(DeclarativeDocumentBackend):
# Initialize previous_format with the first format
previous_format = previous_format or format
# If the style changes for a non empty text, format the group and reset it
if (len(text.strip()) and (format != previous_format)) or (hyperlink is not None):
paragraph_text += self.format_text(group_text, previous_format)
previous_format = format
# If the style changes for a non empty text, add the previous group
if len(group_text.strip()) > 0:
paragraph_elements.append((group_text, previous_format, None))
group_text = ""
hyperlink = None
# If there is a hyperlink, add it immediately
if hyperlink is not None:
paragraph_elements.append((text, format, hyperlink))
text = ""
else:
previous_format = format
group_text += text
# Format the last group
if len(group_text.strip()) > 0:
paragraph_text += self.format_text(group_text, format)
paragraph_elements.append((group_text, format, None))
#TODO: return a list of tuple (text, format, hyperlink) instead of a single string
return paragraph_text.strip()
return paragraph_elements
def handle_equations_in_text(self, element, text):
only_texts = []
@ -370,7 +356,7 @@ class MsWordDocumentBackend(DeclarativeDocumentBackend):
if text is None:
return
text = self.format_paragraph(paragraph)
paragraph_elements = self.format_paragraph(paragraph)
# Common styles for bullet and numbered lists.
# "List Bullet", "List Number", "List Paragraph"
@ -481,16 +467,20 @@ class MsWordDocumentBackend(DeclarativeDocumentBackend):
"Quote",
]:
level = self.get_level()
for text, format, hyperlink in paragraph_elements:
doc.add_text(
label=DocItemLabel.PARAGRAPH, parent=self.parents[level - 1], text=text
label=DocItemLabel.PARAGRAPH, parent=self.parents[level - 1], text=text,
formatting=format, hyperlink=hyperlink
)
else:
# Text style names can, and will have, not only default values but user values too
# hence we treat all other labels as pure text
level = self.get_level()
for text, format, hyperlink in paragraph_elements:
doc.add_text(
label=DocItemLabel.PARAGRAPH, parent=self.parents[level - 1], text=text
label=DocItemLabel.PARAGRAPH, parent=self.parents[level - 1], text=text,
formatting=format, hyperlink=hyperlink
)
self.update_history(p_style_id, p_level, numid, ilevel)