/// <summary>
/// Finds descendant nodes named <i>section</i> where the <i>name</i> attribute matches <paramref name="sectionName"/>.
/// </summary>
/// <param name="root">Specifies the node whose descendants should be searched.</param>
/// <param name="sectionName">Specifies the value of the name attribute of the section.</param>
/// <param name="regexMatch">Specifies whether <paramref name="sectionName"/> should be used a regular expression matching string.</param>
/// <returns></returns>
public static IEnumerable <XElement> FindSections(this XElement root, RfwsDeserializableSectionAttribute attr)
{
(string sectionName, float minimumVersion, bool regexMatch) = attr;
if (regexMatch)
{
return(from element in root.Descendants("section")
let name = (string)element.Attribute("name")
where Regex.IsMatch(name, sectionName)
where element.GetSectionVersion() >= minimumVersion
select element);
}
else
{
return(from element in root.Descendants("section")
let name = (string)element.Attribute("name")
where name == sectionName
where element.GetSectionVersion() >= minimumVersion
select element);
}
}
/// <summary>
/// Finds descendant nodes named <i>section</i> where the <i>name</i> attribute matches the <see cref="RfwsDeserializableSectionAttribute.sectionName"/>
/// value for the <see cref="RfwsSection"/> type defined by <paramref name="sectionType"/>.
/// </summary>
/// <param name="root">Specifies the node whose descendants should be searched.</param>
/// <param name="sectionType">Specifies the type of <see cref="RfwsSection"/> to find in the XML data.</param>
public static IEnumerable <XElement> FindSections <T>(this XElement root)
{
RfwsDeserializableSectionAttribute attr = typeof(T).GetCustomAttribute <RfwsDeserializableSectionAttribute>();
return(root.FindSections(attr));
}
