public void ContainsOnlyQueriedNodes()
{
IXML xml = new XMLCursor("<t6><z9 a='433'><item>a</item><item>b</item></z9><z9 a='432'><item>c</item></z9></t6>");
IXML root = xml.Nodes("/t6/z9[@a='433']")[0];
Assert.Empty(root.Values("/z9[@a='432']"));
}
/// <summary>
/// Texts, extracted from a xml with xpath.
/// </summary>
public XMLTexts(IXML xml, string xpath) : base(() =>
new Mapped <string, IText>(
str => new Atoms.Text.TextOf(str),
xml.Values(xpath)
),
false
)
{
}
public void AppliesXpathToClonedNode()
{
IXML xml = new XMLCursor("<t6><z9 a='433'/></t6>");
IXML root = xml.Nodes("/t6")[0];
Assert.Equal(
"433",
root.Values("//z9/@a")[0]
);
}
/// <summary>
/// A string in a document, retrieved by xpath.
/// </summary>
internal XMLString(IXML xml, string xpath, Func <string> fallback)
{
this.result = new ScalarOf <string>(() =>
{
var matches = xml.Values(xpath);
var result = string.Empty;
if (matches.Count < 1)
{
result = fallback();
}
else if (matches.Count > 1)
{
throw new ArgumentException(
$"Cannot retrieve single value with XPath '{xpath}' because it resulted in multiple values in document{Environment.NewLine}'{xml.AsNode().ToString()}'."
);
}
else
{
result = matches[0];
}
return(result);
});
}
/// <summary>
/// Strings in a document, retrieved by xpath.
/// </summary>
public XMLStrings(string xpath, IXML xml) : base(
() => xml.Values(xpath),
false
)
{
}
