From ea1a3dfb60fde71c4b2fb0a6cfa1f46e9e741f7f Mon Sep 17 00:00:00 2001
From: safen0s <99965118+safen0s@users.noreply.github.com>
Date: Tue, 26 Aug 2025 22:34:43 +0100
Subject: [PATCH] Add HTML support to DocumentIntelligenceConverter (#1352)

---
 .../converters/_doc_intel_converter.py        |  5 ++++
 .../markitdown/tests/test_docintel_html.py    | 26 +++++++++++++++++++
 2 files changed, 31 insertions(+)
 create mode 100644 packages/markitdown/tests/test_docintel_html.py

diff --git a/packages/markitdown/src/markitdown/converters/_doc_intel_converter.py b/packages/markitdown/src/markitdown/converters/_doc_intel_converter.py
index ba66b5b..fd843f2 100644
--- a/packages/markitdown/src/markitdown/converters/_doc_intel_converter.py
+++ b/packages/markitdown/src/markitdown/converters/_doc_intel_converter.py
@@ -84,6 +84,9 @@ def _get_mime_type_prefixes(types: List[DocumentIntelligenceFileType]) -> List[s
             prefixes.append(
                 "application/vnd.openxmlformats-officedocument.spreadsheetml.sheet"
             )
+        elif type_ == DocumentIntelligenceFileType.HTML:
+            prefixes.append("text/html")
+            prefixes.append("application/xhtml+xml")
         elif type_ == DocumentIntelligenceFileType.PDF:
             prefixes.append("application/pdf")
             prefixes.append("application/x-pdf")
@@ -119,6 +122,8 @@ def _get_file_extensions(types: List[DocumentIntelligenceFileType]) -> List[str]
             extensions.append(".bmp")
         elif type_ == DocumentIntelligenceFileType.TIFF:
             extensions.append(".tiff")
+        elif type_ == DocumentIntelligenceFileType.HTML:
+            extensions.append(".html")
     return extensions
 
 
diff --git a/packages/markitdown/tests/test_docintel_html.py b/packages/markitdown/tests/test_docintel_html.py
new file mode 100644
index 0000000..d0b4caa
--- /dev/null
+++ b/packages/markitdown/tests/test_docintel_html.py
@@ -0,0 +1,26 @@
+import io
+from markitdown.converters._doc_intel_converter import (
+    DocumentIntelligenceConverter,
+    DocumentIntelligenceFileType,
+)
+from markitdown._stream_info import StreamInfo
+
+
+def _make_converter(file_types):
+    conv = DocumentIntelligenceConverter.__new__(DocumentIntelligenceConverter)
+    conv._file_types = file_types
+    return conv
+
+
+def test_docintel_accepts_html_extension():
+    conv = _make_converter([DocumentIntelligenceFileType.HTML])
+    stream_info = StreamInfo(mimetype=None, extension=".html")
+    assert conv.accepts(io.BytesIO(b""), stream_info)
+
+
+def test_docintel_accepts_html_mimetype():
+    conv = _make_converter([DocumentIntelligenceFileType.HTML])
+    stream_info = StreamInfo(mimetype="text/html", extension=None)
+    assert conv.accepts(io.BytesIO(b""), stream_info)
+    stream_info = StreamInfo(mimetype="application/xhtml+xml", extension=None)
+    assert conv.accepts(io.BytesIO(b""), stream_info)