Move docx reading into separate package

1 files changed, 88 insertions, 0 deletions

diff --git a/mammoth/docx/__init__.py b/mammoth/docx/__init__.py
new file mode 100644
index 0000000..de2b8a8
--- /dev/null
+++ b/mammoth/docx/__init__.py
@@ -0,0 +1,88 @@
+import zipfile
+
+from .. import documents
+from ..results import Result
+from .xmlparser import parse_xml, node_types
+
+
+_namespaces = [
+    ("w", "http://schemas.openxmlformats.org/wordprocessingml/2006/main"),
+]
+
+
+def read(fileobj):
+    zip_file = zipfile.ZipFile(fileobj)
+    document_fileobj = zip_file.open("word/document.xml")
+    document_xml = parse_xml(document_fileobj, _namespaces)
+    return Result(read_xml_element(document_xml), [])
+
+
+_handlers = {}
+
+
+def handler(name):
+    def add(func):
+        _handlers[name] = func
+        
+    return add
+
+
+def read_xml_element(element):
+    handler = _handlers.get(element.name)
+    if handler is None:
+        return None
+    else:
+        return handler(element)
+
+
+@handler("w:t")
+def text(element):
+    return documents.Text(_inner_text(element))
+
+
+@handler("w:r")
+def run(element):
+    return documents.Run(_read_xml_elements(element.children))
+
+
+@handler("w:p")
+def paragraph(element):
+    properties = element.find_child_or_null("w:pPr")
+    style_name = properties \
+        .find_child_or_null("w:pStyle") \
+        .attributes.get("w:val")
+    
+    children = _read_xml_elements(element.children)
+    return documents.paragraph(children, style_name)
+
+
+@handler("w:body")
+def body(element):
+    return _read_xml_elements(element.children)
+
+
+@handler("w:document")
+def document(element):
+    body_element = _find_child(element, "w:body")
+    return documents.Document(_read_xml_elements(body_element.children))
+
+
+def _find(predicate, iterable):
+    for item in iterable:
+        if predicate(item):
+            return item
+
+
+def _find_child(element, name):
+    return _find(lambda child: child.name == name, element.children)
+
+
+def _read_xml_elements(elements):
+    return filter(None, map(read_xml_element, elements))
+
+
+def _inner_text(node):
+    if node.node_type == node_types.text:
+        return node.value
+    else:
+        return "".join(_inner_text(child) for child in node.children)