Why does xpath insist on choosing spaces instead of actual elements?

Here is a list of countries in XML format:

<countries>
  <country>
    <code>CA</code>
    <name>Canada</name>
  </country>
  ... etc...
</countries>

I am looking to extract and loop through these nodes, so I use the following XPath expression:

path "/countries/*"

Then in my JavaScript code:

nodes = xml.evaluate(path, xml, null, XPathResult.ANY_TYPE, null);

However, when iterating through the nodes, I notice that there are whitespace nodes at positions 1 and 3, while the actual country information is at positions 2 and 4.

How can I modify my XPath query to skip over the whitespace-only nodes and only focus on the parts with actual XML content? It's important for me to exclude any potential line feeds present in the XML data.

Answer №1

Is it possible to utilize a straightforward program like this?

NodeList nations = (NodeList) xpath.evaluate("//countries/country",
    builder.parse(inputStream),
    XPathConstants.NODESET);

for (int i = 0; i < countries.getLength(); i++) {
    Node country = notes.item(i);
    String code = (String) xpath.evaluate("./code/text()", country,
        XPathConstants.STRING);
    String name = (String) xpath.evaluate("./country/text()", country, 
        XPathConstants.STRING);

    System.out.println(String.format("%s has country code %s", name, code));
}

when given the following input:

<countries>
  <country>
    <code>CA</code>
    <country>Canada</country>
  </country>
  <country>
    <code>FR</code>
    <country>France</country>
  </country>
  <country>
    <code>IT</code>
    <country>Italy</country>
  </country>
  <country>
    <code>US</code>
    <country>United States</country>
  </country>
</countries>

the result will be:

Canada has country code CA
France has country code FR
Italy has country code IT
United States has country code US

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