From 66d86154ab5b739a2860edb2802dbc2653d856cc Mon Sep 17 00:00:00 2001
From: Harsh Kashyap <harsh.kashyap2001@gmail.com>
Date: Thu, 25 Jun 2026 16:55:57 +0530
Subject: [PATCH] fix(deepdoc): accept GFM table separators with one or more
 dashes (#16319)

---
 deepdoc/parser/markdown_parser.py                    |  2 +-
 .../unit_test/deepdoc/parser/test_markdown_parser.py | 12 ++++++++++++
 2 files changed, 13 insertions(+), 1 deletion(-)

diff --git a/deepdoc/parser/markdown_parser.py b/deepdoc/parser/markdown_parser.py
index a79f552142..5acf7111bc 100644
--- a/deepdoc/parser/markdown_parser.py
+++ b/deepdoc/parser/markdown_parser.py
@@ -193,7 +193,7 @@ class MarkdownElementExtractor:
 
     def _is_table_separator_row(self, line):
         cells = self._table_cells(line)
-        return len(cells) >= 2 and all(re.match(r"^:?-{3,}:?$", cell.replace(" ", "")) for cell in cells)
+        return len(cells) >= 2 and all(re.match(r"^:?-+:?$", cell.replace(" ", "")) for cell in cells)
 
     def _markdown_table_ranges(self, text):
         ranges = []
diff --git a/test/unit_test/deepdoc/parser/test_markdown_parser.py b/test/unit_test/deepdoc/parser/test_markdown_parser.py
index 9d8d6c53ed..e9c8a92413 100644
--- a/test/unit_test/deepdoc/parser/test_markdown_parser.py
+++ b/test/unit_test/deepdoc/parser/test_markdown_parser.py
@@ -153,6 +153,18 @@ class TestMarkdownElementExtractorTables:
             "After",
         ]
 
+    @pytest.mark.p2
+    def test_custom_delimiter_preserves_gfm_short_separator_table(self, markdown_element_extractor):
+        text = "Before\n| Name | Value |\n| :-- | --: |\n| A | 1 |\nAfter"
+
+        sections = markdown_element_extractor(text).extract_elements(delimiter="`\n`")
+
+        assert sections == [
+            "Before",
+            "| Name | Value |\n| :-- | --: |\n| A | 1 |",
+            "After",
+        ]
+
     def test_custom_delimiter_preserves_html_table(self, markdown_element_extractor):
         text = "Before\n<table>\n<tr><td>A</td></tr>\n<tr><td>B</td></tr>\n</table>\nAfter"