Entity replacement not working in a KML/XML file, how do I use this data? - google-maps-api-3

Question

basically I want to put information into a balloon in Maps API, this is the KML file, the data is stored using SimpleData tags, and I am trying to access to it from the BalloonStyle text tag.
But it doesn't work, in the baloon is displayed simply $[something]. After some research, I discovered Entity replacement may not be supported anymore by SimpleData tags.
So how do I manage the data? I got the data from ogr2ogr conversion from a shapefile and I don't know how to manage its output to make it use ExtendedData and Data tags.
Thank for your help.

Answer 1

You can replace <SchemaData><SimpleData> with <Data><value> elements with a text editor preferably one that can perform regular expression replacements on searches such as NotePad++.
You start with this:
<ExtendedData>
<SchemaData schemaUrl="#biblioteche">
<SimpleData name="INDIRIZZO">VIA SAN VITTORE, 21</SimpleData>
<SimpleData name="TIPOLOGIA">BIBLIOTECHE</SimpleData>
...
<SimpleData name="ID">0</SimpleData>
</SchemaData>
</ExtendedData>
And need to convert to this form:
<ExtendedData>
<Data name="INDIRIZZO">
<value>VIA SAN VITTORE, 21</value>
</Data>
<Data name="TIPOLOGIA">
<value>BIBLIOTECHE</value>
</Data>
...
<Data name="ID">
<value>0</value>
</Data>
</ExtendedData>
Globally make the following replacements (in this order):
#
Find what
Replace with
1.
<SchemaData schemaUrl="#biblioteche">
2.
</SchemaData>
3.
<SimpleData
<Data
4.
(<Data name=".*?">)
\1<value>
5.
</SimpleData>
</value></Data>
Steps 1 and 2 have an empty target such that you delete the element.
Step 4 is the only step that needs to be done as a regular expression.
working example