feat: Support tableformer model choice (#90)

* Support tableformer model choice

Signed-off-by: Christoph Auer <cau@zurich.ibm.com>

* Update datamodel structure

Signed-off-by: Christoph Auer <cau@zurich.ibm.com>

* Update docs

Signed-off-by: Christoph Auer <cau@zurich.ibm.com>

* Cleanup

Signed-off-by: Christoph Auer <cau@zurich.ibm.com>

* Add test unit for table options

Signed-off-by: Christoph Auer <cau@zurich.ibm.com>

* Ensure import backwards-compatibility for PipelineOptions

Signed-off-by: Christoph Auer <cau@zurich.ibm.com>

* Update README

Signed-off-by: Christoph Auer <cau@zurich.ibm.com>

* Adjust parameters on custom_convert

Signed-off-by: Christoph Auer <60343111+cau-git@users.noreply.github.com>

* Update Dockerfile

Signed-off-by: Christoph Auer <60343111+cau-git@users.noreply.github.com>

---------

Signed-off-by: Christoph Auer <cau@zurich.ibm.com>
Signed-off-by: Christoph Auer <60343111+cau-git@users.noreply.github.com>

tests/test_options.py

@@ -0,0 +1,42 @@
+from pathlib import Path
+
+import pytest
+
+from docling.backend.docling_parse_backend import DoclingParseDocumentBackend
+from docling.datamodel.base_models import ConversionStatus
+from docling.datamodel.document import ConversionResult
+from docling.datamodel.pipeline_options import PipelineOptions, TableFormerMode
+from docling.document_converter import DocumentConverter
+
+from .verify_utils import verify_conversion_result
+
+
+@pytest.fixture
+def test_doc_path():
+    return Path("./tests/data/2206.01062.pdf")
+
+
+def get_converters_with_table_options():
+    for cell_matching in [True, False]:
+        for mode in [TableFormerMode.FAST, TableFormerMode.ACCURATE]:
+            pipeline_options = PipelineOptions()
+            pipeline_options.do_ocr = False
+            pipeline_options.do_table_structure = True
+            pipeline_options.table_structure_options.do_cell_matching = cell_matching
+            pipeline_options.table_structure_options.mode = mode
+
+            converter = DocumentConverter(
+                pipeline_options=pipeline_options,
+                pdf_backend=DoclingParseDocumentBackend,
+            )
+
+            yield converter
+
+
+def test_e2e_conversions(test_doc_path):
+    for converter in get_converters_with_table_options():
+        print(f"converting {test_doc_path}")
+
+        doc_result: ConversionResult = converter.convert_single(test_doc_path)
+
+        assert doc_result.status == ConversionStatus.SUCCESS