(Ruby) Remove an XML Subtree

Demonstrates how to remove an XML subtree from an XML document.

Chilkat Ruby Downloads install from rubygems.org gem install chilkat or download... Ruby Library for Windows, MacOS, Linux, Alpine Linux

require 'chilkat'

xml = Chilkat::CkXml.new()

success = xml.LoadXmlFile("qa_data/xml/osszes.xml")

# The XML file we're loading contains this:

# <?xml version="1.0" encoding="iso-8859-2" ?>
# <EXAMPLE>
#     <OSSZES>
#         <ROW TYPE="INS">477953
#             <NUMBER>05107003972</NUMBER>
#         </ROW>
#         <ROW TYPE="INS">477954
#             <NUMBER>05107001342</NUMBER>
#         </ROW>
#         <ROW TYPE="INS">477955
#             <NUMBER>05107001342</NUMBER>
#         </ROW>
#         <ROW TYPE="INS">477956
#             <NUMBER>05107000017</NUMBER>
#         </ROW>**
#         <ROW TYPE="INS">477957
#             <NUMBER>05107002182</NUMBER>
#         </ROW>
#     </OSSZES>
# </EXAMPLE>
# 

# We wish to remove this subtree:

# <ROW TYPE="INS">477956
#     <NUMBER>05107000017</NUMBER>
# </ROW>

# Get another reference to the XML document.
# xml2 is a CkXml
xml2 = xml.GetSelf()

# Navigate to the node that is the root of the subtree to be deleted.
# In this case, we wish to find the node having tag "ROW" with content "477956"
notUsed = xml2.chilkatPath("OSSZES|/C/ROW,*477956*|$")

# Examine the xml2, it should be just the subtree.
print xml2.getXml() + "\n";

# Now detach xml2 from the it's XML document.
# xml2 will now be it's own XML document.
xml2.RemoveFromTree()

# Examine our original XML document.  The subtree is removed:
print xml.getXml() + "\n";