ragflow

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Pegasus d8192f8f17 Fix: validate regex pattern in split_with_pattern to prevent crash (#12633 )

### What problem does this PR solve?

Fix regex pattern validation in split_with_pattern (#12605)

- Add try-except block to validate user-provided regex patterns before
use
- Gracefully fallback to single chunk when invalid regex is provided
- Prevent server crash during DOCX parsing with malformed delimiters

## Problem

Parsing DOCX files with custom regex delimiters crashes with `re.error:
nothing to repeat at position 9` when users provide invalid regex
patterns.

Closes #12605 

## Solution

Validate and compile regex pattern before use. On invalid pattern, log
warning and return content as single chunk instead of crashing.

## Changes

- `rag/nlp/__init__.py`: Add regex validation in `split_with_pattern()`
function

### Type of change

- [x] Bug Fix (non-breaking change which fixes an issue)

Contribution by Gittensor, see my contribution statistics at
https://gittensor.io/miners/details?githubId=42954461

2026-01-15 14:24:51 +08:00

__init__.py

Fix: validate regex pattern in split_with_pattern to prevent crash (#12633 )

2026-01-15 14:24:51 +08:00

query.py

Fix IDE warnings (#12281 )

2025-12-29 12:01:18 +08:00

rag_tokenizer.py

Fix: tokenizer issue. (#11902 )

2025-12-11 17:38:17 +08:00

search.py

Refa: async retrieval process. (#12629 )