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fix: preserve mineru cross-page table positions (#17017)
## Summary - Read MinerU `_middle.json` alongside the content-list output. - Preserve each matched table block as a separate PDF position tag so cross-page tables expose all highlighted ranges. - Keep enrichment limited to table outputs and require the first-page bbox anchor before adding matching continuation blocks. ## Tests - `/Users/zq/.config/superpowers/worktrees/ragflow/issue-16992-pdf-table-coordinates/.venv/bin/python -m pytest --confcutdir=test/unit_test/deepdoc/parser test/unit_test/deepdoc/parser/test_mineru_parser.py -q` - `/Users/zq/.config/superpowers/worktrees/ragflow/issue-16992-pdf-table-coordinates/.venv/bin/ruff check deepdoc/parser/mineru_parser.py test/unit_test/deepdoc/parser/test_mineru_parser.py` - `/Users/zq/.config/superpowers/worktrees/ragflow/issue-16992-pdf-table-coordinates/.venv/bin/python -m py_compile deepdoc/parser/mineru_parser.py test/unit_test/deepdoc/parser/test_mineru_parser.py` - `git diff --check` Closes #16883 --------- Co-authored-by: zq <zhouquan1511@163.com>
This commit is contained in:
zcxGGmu
@@ -4,6 +4,7 @@ import sys
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from io import BytesIO
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from pathlib import Path
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from types import ModuleType
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import json
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def _load_mineru_parser(monkeypatch):
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@@ -260,3 +261,213 @@ def test_end_page_minus_one_normalizes_for_mineru_api(monkeypatch, tmp_path):
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)
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assert captured["data"]["end_page_id"] == 12
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class _FakePageImage:
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def __init__(self, width: int, height: int):
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self.size = (width, height)
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def test_read_output_enriches_cross_page_table_positions_from_middle_json(monkeypatch, tmp_path):
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module = _load_mineru_parser(monkeypatch)
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parser = module.MinerUParser()
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parser.page_images = [_FakePageImage(200, 400), _FakePageImage(200, 400)]
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content_list = [
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{
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"type": module.MinerUContentType.TABLE,
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"table_body": "<table><tr><td>first page row</td></tr><tr><td>second page row</td></tr></table>",
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"table_caption": [],
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"table_footnote": [],
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"bbox": [100, 100, 900, 900],
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"page_idx": 0,
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}
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]
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middle_json = {
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"pdf_info": [
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{
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"page_idx": 0,
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"page_size": [200, 400],
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"para_blocks": [
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{
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"type": "table",
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"bbox": [20, 40, 180, 360],
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"blocks": [
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{
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"type": "table_body",
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"lines": [
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{
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"spans": [
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{"type": "table", "content": "first page row", "bbox": [20, 40, 180, 360]},
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]
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}
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],
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}
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],
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}
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],
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},
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{
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"page_idx": 1,
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"page_size": [200, 400],
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"para_blocks": [
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{
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"type": "table",
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"bbox": [20, 0, 180, 80],
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"blocks": [
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{
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"type": "table_body",
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"lines": [
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{
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"spans": [
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{"type": "table", "content": "second page row", "bbox": [20, 0, 180, 80]},
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]
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}
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],
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}
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],
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}
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],
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},
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],
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}
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(tmp_path / "sample_content_list.json").write_text(json.dumps(content_list), encoding="utf-8")
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(tmp_path / "sample_middle.json").write_text(json.dumps(middle_json), encoding="utf-8")
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outputs = parser._read_output(tmp_path, "sample", method="auto", backend="pipeline")
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sections = parser._transfer_to_sections(outputs, parse_method="raw", table_enable=True)
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assert len(sections) == 1
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_, line_tag = sections[0]
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assert module.MinerUParser.extract_positions(line_tag) == [
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([0], 20.0, 180.0, 40.0, 360.0),
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([1], 20.0, 180.0, 0.0, 80.0),
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]
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def test_read_output_does_not_enrich_non_table_positions_from_middle_json(monkeypatch, tmp_path):
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module = _load_mineru_parser(monkeypatch)
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parser = module.MinerUParser()
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parser.page_images = [_FakePageImage(200, 400), _FakePageImage(200, 400)]
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content_list = [
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{
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"type": module.MinerUContentType.TEXT,
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"text": "first page row second page row",
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"bbox": [100, 100, 900, 900],
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"page_idx": 0,
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}
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]
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middle_json = {
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"pdf_info": [
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{
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"page_idx": 0,
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"page_size": [200, 400],
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"para_blocks": [
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{
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"type": "text",
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"bbox": [20, 40, 180, 360],
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"lines": [{"spans": [{"content": "first page row"}]}],
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}
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],
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},
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{
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"page_idx": 1,
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"page_size": [200, 400],
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"para_blocks": [
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{
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"type": "text",
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"bbox": [20, 0, 180, 80],
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"lines": [{"spans": [{"content": "second page row"}]}],
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}
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],
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},
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],
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}
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(tmp_path / "sample_content_list.json").write_text(json.dumps(content_list), encoding="utf-8")
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(tmp_path / "sample_middle.json").write_text(json.dumps(middle_json), encoding="utf-8")
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outputs = parser._read_output(tmp_path, "sample", method="auto", backend="pipeline")
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sections = parser._transfer_to_sections(outputs, parse_method="raw", table_enable=True)
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assert len(sections) == 1
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_, line_tag = sections[0]
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assert module.MinerUParser.extract_positions(line_tag) == [
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([0], 20.0, 180.0, 40.0, 360.0),
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]
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def test_middle_positions_ignore_malformed_output_bbox(monkeypatch):
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module = _load_mineru_parser(monkeypatch)
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parser = module.MinerUParser()
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parser.page_images = [_FakePageImage(200, 400)]
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positions = parser._middle_positions_for_output(
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{
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"type": module.MinerUContentType.TABLE,
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"table_body": "<table><tr><td>row</td></tr></table>",
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"table_caption": [],
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"table_footnote": [],
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"bbox": [100, 100, 900],
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"page_idx": 0,
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},
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[
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{
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"type": "table",
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"page_idx": 0,
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"bbox": (20, 40, 180, 360),
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"text": "row",
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}
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],
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)
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assert positions == []
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def test_read_output_keeps_original_tag_when_middle_json_has_single_table_position(monkeypatch, tmp_path):
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module = _load_mineru_parser(monkeypatch)
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parser = module.MinerUParser()
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parser.page_images = [_FakePageImage(200, 400)]
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content_list = [
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{
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"type": module.MinerUContentType.TABLE,
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"table_body": "<table><tr><td>only row</td></tr></table>",
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"table_caption": [],
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"table_footnote": [],
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"bbox": [100, 100, 850, 850],
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"page_idx": 0,
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}
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]
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middle_json = {
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"pdf_info": [
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{
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"page_idx": 0,
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"page_size": [200, 400],
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"para_blocks": [
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{
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"type": "table",
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"bbox": [20, 40, 180, 360],
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"blocks": [
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{
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"type": "table_body",
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"lines": [{"spans": [{"type": "table", "content": "only row"}]}],
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}
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],
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}
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],
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}
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],
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}
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(tmp_path / "sample_content_list.json").write_text(json.dumps(content_list), encoding="utf-8")
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(tmp_path / "sample_middle.json").write_text(json.dumps(middle_json), encoding="utf-8")
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outputs = parser._read_output(tmp_path, "sample", method="auto", backend="pipeline")
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sections = parser._transfer_to_sections(outputs, parse_method="raw", table_enable=True)
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assert "_mineru_positions" not in outputs[0]
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assert len(sections) == 1
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_, line_tag = sections[0]
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assert module.MinerUParser.extract_positions(line_tag) == [
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([0], 20.0, 170.0, 40.0, 340.0),
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]
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