fix(xlsx): XLSX emits std minified .text_as_html

CHANGELOG.md

@@ -1,4 +1,4 @@
-## 0.16.1-dev1
+## 0.16.1-dev2
 
 ### Enhancements
 
@@ -8,6 +8,9 @@
 
 * **Remove unsupported chipper model**
 * **Rewrite of `partition.email` module and tests.** Use modern Python stdlib `email` module interface to parse email messages and attachments. This change shortens and simplifies the code, and makes it more robust and maintainable. Several historical problems were remedied in the process.
+* **Minify text_as_html from DOCX.** Previously `.metadata.text_as_html` for DOCX tables was "bloated" with whitespace and noise elements introduced by `tabulate` that produced over-chunking and lower "semantic density" of elements. Reduce HTML to minimum character count without preserving all text.
+* **Fall back to filename extension-based file-type detection for unidentified OLE files.** Resolves a problem where a DOC file that could not be detected as such by `filetype` was incorrectly identified as a MSG file.
+* **Minify text_as_html from XLSX.** Previously `.metadata.text_as_html` for DOCX tables was "bloated" with whitespace and noise elements introduced by `pandas` that produced over-chunking and lower "semantic density" of elements. Reduce HTML to minimum character count without preserving all text.
 
 ## 0.16.0
 

test_unstructured/chunking/test_base.py

@@ -1060,7 +1060,7 @@ def it_knows_the_concatenated_text_of_the_pre_chunk_to_help(
 class Describe_TableSplitter:
     """Unit-test suite for `unstructured.chunking.base._TableSplitter`."""
 
-    def it_splits_an_HTML_table_on_even_rows_when_possible(self):
+    def it_splits_an_HTML_table_on_whole_row_boundaries_when_possible(self):
         opts = ChunkingOptions(max_characters=(150))
         html_table = HtmlTable.from_html_text(
             """

test_unstructured/partition/test_auto.py

@@ -794,19 +794,10 @@ def test_auto_partition_xls_from_filename():
         example_doc_path("tests-example.xls"), include_header=False, skip_infer_table_types=[]
     )
 
-    assert sum(isinstance(element, Table) for element in elements) == 2
     assert len(elements) == 14
-
-    assert clean_extra_whitespace(elements[0].text)[:45] == (
-        "MC What is 2+2? 4 correct 3 incorrect MA What"
-    )
-    # NOTE(crag): if the beautifulsoup4 package is installed, some (but not all) additional
-    # whitespace is removed, so the expected text length is less than is the case when
-    # beautifulsoup4 is *not* installed. E.g.
-    #      "\n\n\nMA\nWhat C datatypes are 8 bits"
-    #  vs. '\n  \n    \n      MA\n      What C datatypes are 8 bits?... "
-    assert len(elements[0].text) == 550
+    assert sum(isinstance(e, Table) for e in elements) == 2
     assert elements[0].metadata.text_as_html == EXPECTED_XLS_TABLE
+    assert len(elements[0].text) == 507
 
 
 # ================================================================================================

test_unstructured/partition/test_constants.py

@@ -28,30 +28,14 @@
   </tbody>
 </table>"""
 
-EXPECTED_TABLE_XLSX = """<table border="1" class="dataframe">
-  <tbody>
-    <tr>
-      <td>Team</td>
-      <td>Location</td>
-      <td>Stanley Cups</td>
-    </tr>
-    <tr>
-      <td>Blues</td>
-      <td>STL</td>
-      <td>1</td>
-    </tr>
-    <tr>
-      <td>Flyers</td>
-      <td>PHI</td>
-      <td>2</td>
-    </tr>
-    <tr>
-      <td>Maple Leafs</td>
-      <td>TOR</td>
-      <td>13</td>
-    </tr>
-  </tbody>
-</table>"""
+EXPECTED_TABLE_XLSX = (
+    "<table>"
+    "<tr><td>Team</td><td>Location</td><td>Stanley Cups</td></tr>"
+    "<tr><td>Blues</td><td>STL</td><td>1</td></tr>"
+    "<tr><td>Flyers</td><td>PHI</td><td>2</td></tr>"
+    "<tr><td>Maple Leafs</td><td>TOR</td><td>13</td></tr>"
+    "</table>"
+)
 
 EXPECTED_TITLE = "Stanley Cups"
 
@@ -139,86 +123,76 @@
 </table>"""
 
 EXPECTED_XLS_TABLE = (
-    """<table border="1" class="dataframe">
-  <tbody>
-    <tr>
-      <td>MC</td>
-      <td>What is 2+2?</td>
-      <td>4</td>
-      <td>correct</td>
-      <td>3</td>
-      <td>incorrect</td>
-      <td></td>
-      <td></td>
-      <td></td>
-    </tr>
-    <tr>
-      <td>MA</td>
-      <td>What C datatypes are 8 bits? (assume i386)</td>
-      <td>int</td>
-      <td></td>
-      <td>float</td>
-      <td></td>
-      <td>double</td>
-      <td></td>
-      <td>char</td>
-    </tr>
-    <tr>
-      <td>TF</td>
-      <td>Bagpipes are awesome.</td>
-      <td>true</td>
-      <td></td>
-      <td></td>
-      <td></td>
-      <td></td>
-      <td></td>
-      <td></td>
-    </tr>
-    <tr>
-      <td>ESS</td>
-      <td>How have the original Henry Hornbostel buildings """
-    """influenced campus architecture and design in the last 30 years?</td>
-      <td></td>
-      <td></td>
-      <td></td>
-      <td></td>
-      <td></td>
-      <td></td>
-      <td></td>
-    </tr>
-    <tr>
-      <td>ORD</td>
-      <td>Rank the following in their order of operation.</td>
-      <td>Parentheses</td>
-      <td>Exponents</td>
-      <td>Division</td>
-      <td>Addition</td>
-      <td></td>
-      <td></td>
-      <td></td>
-    </tr>
-    <tr>
-      <td>FIB</td>
-      <td>The student activities fee is</td>
-      <td>95</td>
-      <td>dollars for students enrolled in</td>
-      <td>19</td>
-      <td>units or more,</td>
-      <td></td>
-      <td></td>
-      <td></td>
-    </tr>
-    <tr>
-      <td>MAT</td>
-      <td>Match the lower-case greek letter with its capital form.</td>
-      <td>λ</td>
-      <td>Λ</td>
-      <td>α</td>
-      <td>γ</td>
-      <td>Γ</td>
-      <td>φ</td>
-      <td>Φ</td>
-    </tr>
-  </tbody>
-</table>"""
+    "<table><tr>"
+    "<td>MC</td>"
+    "<td>What is 2+2?</td>"
+    "<td>4</td>"
+    "<td>correct</td>"
+    "<td>3</td>"
+    "<td>incorrect</td>"
+    "<td/>"
+    "<td/>"
+    "<td/>"
+    "</tr><tr>"  # -----
+    "<td>MA</td>"
+    "<td>What C datatypes are 8 bits? (assume i386)</td>"
+    "<td>int</td>"
+    "<td/>"
+    "<td>float</td>"
+    "<td/>"
+    "<td>double</td>"
+    "<td/>"
+    "<td>char</td>"
+    "</tr><tr>"  # -----
+    "<td>TF</td>"
+    "<td>Bagpipes are awesome.</td>"
+    "<td>true</td>"
+    "<td/>"
+    "<td/>"
+    "<td/>"
+    "<td/>"
+    "<td/>"
+    "<td/>"
+    "</tr><tr>"  # -----
+    "<td>ESS</td>"
+    "<td>How have the original Henry Hornbostel buildings influenced campus architecture and"
+    " design in the last 30 years?</td>"
+    "<td/>"
+    "<td/>"
+    "<td/>"
+    "<td/>"
+    "<td/>"
+    "<td/>"
+    "<td/>"
+    "</tr><tr>"  # -----
+    "<td>ORD</td>"
+    "<td>Rank the following in their order of operation.</td>"
+    "<td>Parentheses</td>"
+    "<td>Exponents</td>"
+    "<td>Division</td>"
+    "<td>Addition</td>"
+    "<td/>"
+    "<td/>"
+    "<td/>"
+    "</tr><tr>"  # -----
+    "<td>FIB</td>"
+    "<td>The student activities fee is</td>"
+    "<td>95</td>"
+    "<td>dollars for students enrolled in</td>"
+    "<td>19</td>"
+    "<td>units or more,</td>"
+    "<td/>"
+    "<td/>"
+    "<td/>"
+    "</tr><tr>"  # -----
+    "<td>MAT</td>"
+    "<td>Match the lower-case greek letter with its capital form.</td>"
+    "<td>λ</td>"
+    "<td>Λ</td>"
+    "<td>α</td>"
+    "<td>γ</td>"
+    "<td>Γ</td>"
+    "<td>φ</td>"
+    "<td>Φ</td>"
+    "</tr></table>"
 )