second commit

env/lib/python3.11/site-packages/mpegdash/utils.py

@@ -0,0 +1,78 @@
+from xml.dom import minidom
+
+import re
+
+
+def _find_child_nodes_by_name(parent, name):
+    nodes = []
+    for node in parent.childNodes:
+        if node.nodeType == node.ELEMENT_NODE and (node.localName == name or node.nodeName == name):
+            nodes.append(node)
+    return nodes
+
+
+def parse_child_nodes(xmlnode, tag_name, node_type):
+    elements = _find_child_nodes_by_name(xmlnode, tag_name)
+    if not elements:
+        return None
+
+    nodes = []
+    for elem in elements:
+        if isinstance(node_type, str):
+            node = xmlnode.firstChild.nodeValue
+        else:
+            node = node_type()
+            node.parse(elem)
+        nodes.append(node)
+
+    return nodes
+
+
+def parse_node_value(xmlnode, value_type):
+    node_val = xmlnode.firstChild.nodeValue if xmlnode.firstChild else None
+    if node_val:
+        return value_type(node_val)
+    return None
+
+
+def parse_attr_value(xmlnode, attr_name, value_type):
+    if attr_name not in xmlnode.attributes.keys():
+        return None
+
+    attr_val = xmlnode.attributes[attr_name].nodeValue
+    if isinstance(value_type, list):
+        attr_type = value_type[0] if len(value_type) > 0 else str
+        return [attr_type(elem) for elem in re.split(r'[, ]', attr_val)]
+
+    return value_type(attr_val)
+
+
+def write_child_node(xmlnode, tag_name, node):
+    if node:
+        xmldoc = xmlnode if isinstance(xmlnode, minidom.Document) else xmlnode.ownerDocument
+        if isinstance(node, list):
+            for n in node:
+                new_elem = xmldoc.createElement(tag_name)
+                n.write(new_elem)
+                xmlnode.appendChild(new_elem)
+        else:
+            new_elem = xmldoc.createElement(tag_name)
+            node.write(new_elem)
+            xmlnode.appendChild(new_elem)
+
+
+def write_node_value(xmlnode, node_val):
+    if node_val:
+        xmldoc = xmlnode if isinstance(xmlnode, minidom.Document) else xmlnode.ownerDocument
+        text_node = xmldoc.createTextNode(str(node_val))
+        xmlnode.appendChild(text_node)
+
+
+def write_attr_value(xmlnode, attr_name, attr_val):
+    if attr_name and attr_val is not None:
+        if isinstance(type(attr_val), list):
+            attr_val = ' '.join([str(val) for val in attr_val])
+        val = str(attr_val)
+        if type(attr_val) is bool:
+            val = val.lower()
+        xmlnode.setAttribute(attr_name, val)