public static bool TryGetSimpleRulesFromCollationNode(string collationXml, out string rules)
{
if (collationXml == null)
{
throw new ArgumentNullException("collationXml");
}
XmlReaderSettings readerSettings = new XmlReaderSettings();
readerSettings.CloseInput = true;
readerSettings.ConformanceLevel = ConformanceLevel.Fragment;
readerSettings.IgnoreWhitespace = true;
rules = null;
using (XmlReader collationReader = XmlReader.Create(new StringReader(collationXml), readerSettings))
{
// simple rules can't deal with any non-default settings
if (XmlHelpersV0.FindNextElementInSequence(collationReader, "settings", LdmlNodeComparer.CompareElementNames))
{
return(false);
}
if (!XmlHelpersV0.FindNextElementInSequence(collationReader, "rules", LdmlNodeComparer.CompareElementNames))
{
rules = string.Empty;
return(true);
}
rules = GetSimpleRulesFromRulesNode(collationReader);
}
return(rules != null);
}
protected string GetSpecialValue(XmlReader reader, string ns, string field)
{
if (!XmlHelpersV0.FindNextElementInSequence(reader, ns + ":" + field, _nameSpaceManager.LookupNamespace(ns), string.Compare))
{
return(string.Empty);
}
return(reader.GetAttribute("value") ?? string.Empty);
}
public static string GetIcuRulesFromCollationNode(string collationXml)
{
if (collationXml == null)
{
throw new ArgumentNullException("collationXml");
}
XmlReaderSettings readerSettings = new XmlReaderSettings();
readerSettings.CloseInput = true;
readerSettings.ConformanceLevel = ConformanceLevel.Fragment;
string icuRules = string.Empty;
string variableTop = null;
int variableTopPositionIfNotUsed = 0;
using (XmlReader collationReader = XmlReader.Create(new StringReader(collationXml), readerSettings))
{
if (XmlHelpersV0.FindNextElementInSequence(collationReader, "settings", LdmlNodeComparer.CompareElementNames))
{
icuRules += GetIcuSettingsFromSettingsNode(collationReader, out variableTop);
variableTopPositionIfNotUsed = icuRules.Length;
}
if (XmlHelpersV0.FindNextElementInSequence(collationReader, "suppress_contractions", LdmlNodeComparer.CompareElementNames))
{
icuRules += GetIcuOptionFromNode(collationReader);
}
if (XmlHelpersV0.FindNextElementInSequence(collationReader, "optimize", LdmlNodeComparer.CompareElementNames))
{
icuRules += GetIcuOptionFromNode(collationReader);
}
if (XmlHelpersV0.FindNextElementInSequence(collationReader, "rules", LdmlNodeComparer.CompareElementNames))
{
icuRules += GetIcuRulesFromRulesNode(collationReader, ref variableTop);
}
}
if (variableTop != null)
{
string variableTopRule = String.Format(NewLine + "&{0} < [variable top]", EscapeForIcu(variableTop));
if (variableTopPositionIfNotUsed == icuRules.Length)
{
icuRules += variableTopRule;
}
else
{
icuRules = String.Format("{0}{1}{2}", icuRules.Substring(0, variableTopPositionIfNotUsed),
variableTopRule, icuRules.Substring(variableTopPositionIfNotUsed));
}
}
return(icuRules.Trim());
}
private static bool FindElement(XmlReader reader, string name)
{
return(XmlHelpersV0.FindNextElementInSequence(reader, name, LdmlNodeComparerV0.CompareElementNames));
}
