From 2a37562791dbb4715db0a6b291e49dfa7afcb85c Mon Sep 17 00:00:00 2001
From: Idriss Sbaaoui <112825897+6ba3i@users.noreply.github.com>
Date: Tue, 28 Apr 2026 14:21:30 +0800
Subject: [PATCH] Fix manual naive parser position extraction fallback (#14420)

### What problem does this PR solve?
This PR fixes a regression where Manual pipeline + Naive (Plain Text)
PDF parsing crashed with `AttributeError: 'PlainParser' object has no
attribute 'extract_positions'` in `rag/app/manual.py`.
fixes #14411
### Type of change:
- [x] Bug Fix (non-breaking change which fixes an issue)
---
 rag/app/manual.py | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/rag/app/manual.py b/rag/app/manual.py
index 576d06fafb..b9afdbf725 100644
--- a/rag/app/manual.py
+++ b/rag/app/manual.py
@@ -183,7 +183,7 @@ def chunk(filename, binary=None, from_page=0, to_page=MAXIMUM_PAGE_NUMBER, lang=
 
             txt, layoutno, poss = section
             if isinstance(poss, str):
-                poss = pdf_parser.extract_positions(poss)
+                poss = (getattr(pdf_parser, "extract_positions", lambda _: [])(poss) or [[0, 0, 0, 0, 0]])
                 if poss:
                     first = poss[0]  # tuple: ([pn], x1, x2, y1, y2)
                     pn = first[0]