icdsystems/ICD.Common.Utils
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XML utils untangling, potential optimizations

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This commit is contained in:
Chris Cameron
2018-01-22 10:26:33 -05:00
parent e4be5e7e7c
commit 3c3d6fa52e
2 changed files with 192 additions and 116 deletions
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90
ICD.Common.Utils/Xml/XmlReaderExtensions.cs
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@@ -182,6 +182,27 @@ namespace ICD.Common.Utils.Xml
return false;
}
/// <summary>
/// Gets the child element with the given name under the current element.
/// </summary>
/// <param name="extends"></param>
/// <param name="element"></param>
/// <returns></returns>
public static IcdXmlReader GetChildElement(this IcdXmlReader extends, string element)
{
if (extends == null)
throw new ArgumentNullException("extends");
try
{
return extends.GetChildElements(element).First();
}
catch (InvalidOperationException e)
{
throw new FormatException("No child element with name " + element, e);
}
}
/// <summary>
/// Gets the child elements for the current element.
/// </summary>
@@ -199,6 +220,24 @@ namespace ICD.Common.Utils.Xml
}
}
/// <summary>
/// Gets the child elements for the current element.
/// </summary>
/// <param name="extends"></param>
/// <param name="element"></param>
/// <returns></returns>
public static IEnumerable<IcdXmlReader> GetChildElements(this IcdXmlReader extends, string element)
{
if (extends == null)
throw new ArgumentNullException("extends");
foreach (IcdXmlReader output in extends.GetChildElementsAsString(element).Select(child => new IcdXmlReader(child)))
{
output.SkipToNextElement();
yield return output;
}
}
/// <summary>
/// Gets the child elements for the current element.
/// </summary>
@@ -230,6 +269,57 @@ namespace ICD.Common.Utils.Xml
}
}
/// <summary>
/// Gets the child elements for the current element.
/// </summary>
/// <param name="extends"></param>
/// <param name="element"></param>
/// <returns></returns>
[PublicAPI]
public static IEnumerable<string> GetChildElementsAsString(this IcdXmlReader extends, string element)
{
if (extends == null)
throw new ArgumentNullException("extends");
// Step into the first child.
extends.SkipToNextElement();
while (extends.NodeType == XmlNodeType.Element || extends.NodeType == XmlNodeType.Comment)
{
switch (extends.NodeType)
{
case XmlNodeType.Comment:
extends.Skip();
break;
case XmlNodeType.Element:
string name = extends.Name;
string output = extends.ReadOuterXml();
if (name == element)
yield return output;
break;
}
extends.SkipInsignificantWhitespace();
}
}
public static bool TryGetChildElementAsString(this IcdXmlReader extends, string element, out string output)
{
output = null;
try
{
output = extends.GetChildElementsAsString(element).First();
return true;
}
catch (InvalidOperationException)
{
return false;
}
}
#endregion
#region Read Element Content