(Chilkat2-Python) Insert XML into existing XML by calling InsertChildTreeAfter

Demonstrates how to insert an XML tree or subtree into another XML document using the InsertChildTreeAfter method.

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import sys
import chilkat2

# Build the 1st XML document:
# <x1>
#     <a1>1</a1>
#     <a2>2</a2>
#     <a3>3</a3>
# </x1>

xml = chilkat2.Xml()
xml.Tag = "x1"
xml.UpdateChildContent("a1","1")
xml.UpdateChildContent("a2","2")
xml.UpdateChildContent("a3","3")

# Build a 2nd XML document:

# <x2>
#   <b1>11</b1>
#   <b2>22</b2>
#   <b3>33</b3>
# </x2>

xml2 = chilkat2.Xml()
xml2.Tag = "x2"
xml2.UpdateChildContent("b1","11")
xml2.UpdateChildContent("b2","22")
xml2.UpdateChildContent("b3","33")

# We want to insert xml2 into xml to get this:

# <x1>
#     <a1>1</a1>
#     <x2>
#         <b1>11</b1>
#         <b2>22</b2>
#         <b3>33</b3>
#     </x2>
#     <a2>2</a2>
#     <a3>3</a3>
# </x1>

# Insert xml2 after "a1"

index = xml.TagIndex("a1")
if (index < 0):
    print("a1 not found.")
    sys.exit()

xml.InsertChildTreeAfter(index,xml2)

print(xml.GetXml())

# The result is:

# <x1>
#     <a1>1</a1>
#     <x2>
#         <b1>11</b1>
#         <b2>22</b2>
#         <b3>33</b3>
#     </x2>
#     <a2>2</a2>
#     <a3>3</a3>
# </x1>

# Note: xml2 now points to the subtree within xml.
# For example, update "b3" and then see how it's updated within the merged document:
xml2.UpdateChildContent("b3","33333333")

print(xml.GetXml())

# The result:

# <x1>
#     <a1>1</a1>
#     <x2>
#         <b1>11</b1>
#         <b2>22</b2>
#         <b3>33333333</b3>
#     </x2>
#     <a2>2</a2>
#     <a3>3</a3>
# </x1>