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fix(docx): Improve text parsing (#1268)

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* chore: bump version to 2.28.4 [skip ci]

Signed-off-by: Rafael Teixeira de Lima <Rafael.td.lima@gmail.com>

* Improve text parsing

Signed-off-by: Rafael Teixeira de Lima <Rafael.td.lima@gmail.com>

* fix: Tesseract OCR CLI can't process images composed with numbers only (#1201)

fix wrong type text extracted by tesseract_ocr_cli_model

Signed-off-by: gvl4 <Guilhem.VERMOREL@3ds.com>
Co-authored-by: gvl4 <Guilhem.VERMOREL@3ds.com>
Signed-off-by: Rafael Teixeira de Lima <Rafael.td.lima@gmail.com>

* Flexibilize heading detection

Signed-off-by: Rafael Teixeira de Lima <Rafael.td.lima@gmail.com>

* Fix trailing space

Signed-off-by: Rafael Teixeira de Lima <Rafael.td.lima@gmail.com>

* Remove trailing space

Signed-off-by: Rafael Teixeira de Lima <Rafael.td.lima@gmail.com>

---------

Signed-off-by: Rafael Teixeira de Lima <Rafael.td.lima@gmail.com>
Signed-off-by: gvl4 <Guilhem.VERMOREL@3ds.com>
Co-authored-by: github-actions[bot] <github-actions[bot]@users.noreply.github.com>
Co-authored-by: Guilhem VERMOREL <83694424+guilhemvermorel@users.noreply.github.com>
Co-authored-by: gvl4 <Guilhem.VERMOREL@3ds.com>
This commit is contained in:
Rafael Teixeira de Lima 2025-04-02 12:56:44 +02:00 committed by GitHub
parent b3d111a3cd
commit d2d68747f9
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GPG Key ID: B5690EEEBB952194
1 changed files with 64 additions and 28 deletions
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92
docling/backend/msword_backend.py
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@ -234,33 +234,44 @@ class MsWordDocumentBackend(DeclarativeDocumentBackend):
return None, None # If the paragraph is not part of a list
def get_label_and_level(self, paragraph: Paragraph) -> tuple[str, Optional[int]]:
if paragraph.style is None:
return "Normal", None
label = paragraph.style.style_id
if label is None:
return "Normal", None
if ":" in label:
parts = label.split(":")
def get_heading_and_level(self, style_label: str) -> tuple[str, Optional[int]]:
parts = self.split_text_and_number(style_label)
if len(parts) == 2:
return parts[0], self.str_to_int(parts[1], None)
parts = self.split_text_and_number(label)
if "Heading" in label and len(parts) == 2:
if len(parts) == 2:
parts.sort()
label_str: str = ""
label_level: Optional[int] = 0
if parts[0] == "Heading":
label_str = parts[0]
if parts[0].strip().lower() == "heading":
label_str = "Heading"
label_level = self.str_to_int(parts[1], None)
if parts[1] == "Heading":
label_str = parts[1]
if parts[1].strip().lower() == "heading":
label_str = "Heading"
label_level = self.str_to_int(parts[0], None)
return label_str, label_level
else:
return label, None
return style_label, None
def get_label_and_level(self, paragraph: Paragraph) -> tuple[str, Optional[int]]:
if paragraph.style is None:
return "Normal", None
label = paragraph.style.style_id
name = paragraph.style.name
if label is None:
return "Normal", None
if ":" in label:
parts = label.split(":")
if len(parts) == 2:
return parts[0], self.str_to_int(parts[1], None)
if "heading" in label.lower():
return self.get_heading_and_level(label)
if "heading" in name.lower():
return self.get_heading_and_level(name)
return label, None
def handle_equations_in_text(self, element, text):
only_texts = []
@ -269,19 +280,44 @@ class MsWordDocumentBackend(DeclarativeDocumentBackend):
for subt in element.iter():
tag_name = etree.QName(subt).localname
if tag_name == "t" and "math" not in subt.tag:
only_texts.append(subt.text)
texts_and_equations.append(subt.text)
if isinstance(subt.text, str):
only_texts.append(subt.text)
texts_and_equations.append(subt.text)
elif "oMath" in subt.tag and "oMathPara" not in subt.tag:
latex_equation = str(oMath2Latex(subt))
only_equations.append(latex_equation)
texts_and_equations.append(latex_equation)
if "".join(only_texts).strip() != text.strip():
if len(only_equations) < 1:
return text, []
if (
re.sub(r"\s+", "", "".join(only_texts)).strip()
!= re.sub(r"\s+", "", text).strip()
):
# If we are not able to reconstruct the initial raw text
# do not try to parse equations and return the original
return text, []
return "".join(texts_and_equations), only_equations
# Insert equations into original text
# This is done to preserve white space structure
output_text = ""
init_i = 0
for i_substr, substr in enumerate(texts_and_equations):
if substr not in text:
if i_substr > 0:
i_text_before = text[init_i:].find(
texts_and_equations[i_substr - 1]
)
output_text += text[init_i:][
: i_text_before + len(texts_and_equations[i_substr - 1])
]
init_i += i_text_before + len(texts_and_equations[i_substr - 1])
output_text += substr
if only_equations.index(substr) == len(only_equations) - 1:
output_text += text[init_i:]
return output_text, only_equations
def handle_text_elements(
self,
@ -348,7 +384,7 @@ class MsWordDocumentBackend(DeclarativeDocumentBackend):
)
elif "Heading" in p_style_id:
style_element = getattr(paragraph.style, "element", None)
if style_element:
if style_element is not None:
is_numbered_style = (
"<w:numPr>" in style_element.xml or "<w:numPr>" in element.xml
)
@ -376,8 +412,8 @@ class MsWordDocumentBackend(DeclarativeDocumentBackend):
if len(text_tmp) == 0:
break
pre_eq_text = text_tmp.split(eq, maxsplit=1)[0]
text_tmp = text_tmp.split(eq, maxsplit=1)[1]
pre_eq_text = text_tmp.split(eq.strip(), maxsplit=1)[0]
text_tmp = text_tmp.split(eq.strip(), maxsplit=1)[1]
if len(pre_eq_text) > 0:
doc.add_text(
label=DocItemLabel.PARAGRAPH,
@ -393,7 +429,7 @@ class MsWordDocumentBackend(DeclarativeDocumentBackend):
doc.add_text(
label=DocItemLabel.PARAGRAPH,
parent=inline_equation,
text=text_tmp,
text=text_tmp.strip(),
)
elif p_style_id in [