// There's some confusion between the Palaso migrator and our version 19 migrator about whether an old language
// tag should have multiple X's if it has more than one private-use component. Since such X's are not
// significant, ignore them.
private bool TryGetNewTag(string oldTag, out string newTag)
{
string key = RemoveMultipleX(oldTag.ToLowerInvariant());
if (m_tagMap.TryGetValue(key, out newTag))
{
return(!newTag.Equals(oldTag, StringComparison.OrdinalIgnoreCase));
}
var cleaner = new IetfLanguageTagCleaner(oldTag);
cleaner.Clean();
// FieldWorks needs to handle this special case.
if (cleaner.Language.ToLowerInvariant() == "cmn")
{
var region = cleaner.Region;
if (string.IsNullOrEmpty(region))
{
region = "CN";
}
cleaner = new IetfLanguageTagCleaner("zh", cleaner.Script, region, cleaner.Variant, cleaner.PrivateUse);
}
newTag = cleaner.GetCompleteTag();
while (m_tagMap.Values.Contains(newTag, StringComparer.OrdinalIgnoreCase))
{
// We can't use this tag because it would conflict with what we are mapping something else to.
cleaner = new IetfLanguageTagCleaner(cleaner.Language, cleaner.Script, cleaner.Region, cleaner.Variant,
WritingSystemIdMigrator.GetNextDuplPart(cleaner.PrivateUse));
newTag = cleaner.GetCompleteTag();
}
m_tagMap[key] = newTag;
return(!newTag.Equals(oldTag, StringComparison.OrdinalIgnoreCase));
}
public void GetNextDuplPart()
{
Assert.That(WritingSystemIdMigrator.GetNextDuplPart(null), Is.EqualTo("dupl1"));
Assert.That(WritingSystemIdMigrator.GetNextDuplPart(""), Is.EqualTo("dupl1"));
Assert.That(WritingSystemIdMigrator.GetNextDuplPart("abc"), Is.EqualTo("abc-dupl1"));
Assert.That(WritingSystemIdMigrator.GetNextDuplPart("dupl1"), Is.EqualTo("dupl2"));
Assert.That(WritingSystemIdMigrator.GetNextDuplPart("abc-def-dupl12"), Is.EqualTo("abc-def-dupl13"));
}
private bool TryGetNewLangTag(string oldTag, out string newTag)
{
if (m_tagMap.TryGetValue(oldTag, out newTag))
{
return(!newTag.Equals(oldTag));
}
var cleaner = new IetfLanguageTagCleaner(oldTag);
cleaner.Clean();
newTag = cleaner.GetCompleteTag();
while (m_tagMap.Values.Contains(newTag))
{
// We can't use this tag because it would conflict with what we are mapping something else to.
cleaner = new IetfLanguageTagCleaner(cleaner.Language, cleaner.Script, cleaner.Region, cleaner.Variant,
WritingSystemIdMigrator.GetNextDuplPart(cleaner.PrivateUse));
newTag = cleaner.GetCompleteTag();
}
m_tagMap[oldTag] = newTag;
return(!newTag.Equals(oldTag));
}