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import shutil
import subprocess
def _doc_to_docx(path: str):
"""Legacy .doc (OLE binary, readable by neither pandoc nor python-docx) → a LibreOffice-converted .docx temp copy.
Returns the new path; None when soffice is unavailable or the conversion fails."""
import os
import tempfile
if not shutil.which("soffice"):
return None
outdir = tempfile.mkdtemp(prefix="doc2docx_")
env = dict(os.environ)
env["SAL_USE_VCLPLUGIN"] = "svp"
try:
subprocess.run(["soffice", "--headless", "--convert-to", "docx", "--outdir", outdir, path],
capture_output=True, timeout=120, env=env)
except Exception:
return None
new = os.path.join(outdir, os.path.splitext(os.path.basename(path))[0] + ".docx")
return new if os.path.exists(new) else None
def _docx_to_md(path: str) -> str:
"""docx → markdown. The base path is pandoc → markdown
(keeps run-level formatting signals: bold / italic / strikethrough / lists / tables, which is more than python-docx's plain text).
When pandoc is unavailable it falls back to python-docx (text + heading levels only, run-level formatting lost).
A legacy .doc is converted to .docx by LibreOffice first and then takes the same path.
"""
if path.lower().endswith(".doc"):
conv = _doc_to_docx(path)
if not conv:
return ("[read_file] .doc (legacy Word) detected but LibreOffice (soffice) is "
"unavailable for .doc→.docx conversion; cannot read.")
path = conv
if shutil.which("pandoc"):
try:
r = subprocess.run(
["pandoc", "-f", "docx", "-t", "markdown", "--wrap=none", path],
capture_output=True, text=True, timeout=120,
)
if r.returncode == 0 and r.stdout.strip():
return r.stdout
except Exception:
pass # fall through to the python-docx fallback
# Fallback: python-docx when pandoc is absent (plain text + headings)
_ensure("docx", "python-docx")
import docx
d = docx.Document(path)
out = []
for p in d.paragraphs:
if not p.text.strip():
continue
style = (p.style.name or "").lower()
if style.startswith("heading"):
lvl = "".join(c for c in style if c.isdigit()) or "1"
out.append("#" * min(int(lvl), 6) + " " + p.text)
else:
out.append(p.text)
for ti, t in enumerate(d.tables):
out.append(f"\n**Table {ti + 1}:**")
for ri, row in enumerate(t.rows):
cells = [c.text for c in row.cells]
out.append("| " + " | ".join(cells) + " |")
if ri == 0:
out.append("| " + " | ".join("---" for _ in cells) + " |")
return "\n".join(out)
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