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fix: [xxx](xxx) render as xxx](xxx) (#30392)

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Co-authored-by: autofix-ci[bot] <114827586+autofix-ci[bot]@users.noreply.github.com>
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wangxiaolei
2025-12-31 10:30:15 +08:00
committed by GitHub
parent 925168383b
commit 9007109a6b
5 changed files with 255 additions and 13 deletions
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44
api/core/rag/cleaner/clean_processor.py
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@ -27,26 +27,44 @@ class CleanProcessor:
pattern = r"([a-zA-Z0-9_.+-]+@[a-zA-Z0-9-]+\.[a-zA-Z0-9-.]+)"
text = re.sub(pattern, "", text)
# Remove URL but keep Markdown image URLs
# First, temporarily replace Markdown image URLs with a placeholder
markdown_image_pattern = r"!\[.*?\]\((https?://[^\s)]+)\)"
placeholders: list[str] = []
# Remove URL but keep Markdown image URLs and link URLs
# Replace the ENTIRE markdown link/image with a single placeholder to protect
# the link text (which might also be a URL) from being removed
markdown_link_pattern = r"\[([^\]]*)\]\((https?://[^)]+)\)"
markdown_image_pattern = r"!\[.*?\]\((https?://[^)]+)\)"
placeholders: list[tuple[str, str, str]] = [] # (type, text, url)
def replace_with_placeholder(match, placeholders=placeholders):
def replace_markdown_with_placeholder(match, placeholders=placeholders):
link_type = "link"
link_text = match.group(1)
url = match.group(2)
placeholder = f"__MARKDOWN_PLACEHOLDER_{len(placeholders)}__"
placeholders.append((link_type, link_text, url))
return placeholder
def replace_image_with_placeholder(match, placeholders=placeholders):
link_type = "image"
url = match.group(1)
placeholder = f"__MARKDOWN_IMAGE_URL_{len(placeholders)}__"
placeholders.append(url)
return f"![image]({placeholder})"
placeholder = f"__MARKDOWN_PLACEHOLDER_{len(placeholders)}__"
placeholders.append((link_type, "image", url))
return placeholder
text = re.sub(markdown_image_pattern, replace_with_placeholder, text)
# Protect markdown links first
text = re.sub(markdown_link_pattern, replace_markdown_with_placeholder, text)
# Then protect markdown images
text = re.sub(markdown_image_pattern, replace_image_with_placeholder, text)
# Now remove all remaining URLs
url_pattern = r"https?://[^\s)]+"
url_pattern = r"https?://\S+"
text = re.sub(url_pattern, "", text)
# Finally, restore the Markdown image URLs
for i, url in enumerate(placeholders):
text = text.replace(f"__MARKDOWN_IMAGE_URL_{i}__", url)
# Restore the Markdown links and images
for i, (link_type, text_or_alt, url) in enumerate(placeholders):
placeholder = f"__MARKDOWN_PLACEHOLDER_{i}__"
if link_type == "link":
text = text.replace(placeholder, f"[{text_or_alt}]({url})")
else: # image
text = text.replace(placeholder, f"![{text_or_alt}]({url})")
return text
def filter_string(self, text):