// ICU4N: Avoid static constructor by initializing inline
private static CollationTailoring LoadCollationTailoring(out Exception exception)
{
// Corresponds to C++ load() function.
CollationTailoring t = null;
Exception e2 = null;
try
{
ByteBuffer bytes = ICUBinary.GetRequiredData("coll/ucadata.icu");
CollationTailoring t2 = new CollationTailoring(null);
CollationDataReader.Read(null, bytes, t2);
// Keep t=null until after the root data has been read completely.
// Otherwise we would set a non-null root object if the data reader throws an exception.
t = t2;
}
catch (IOException e)
{
e2 = new MissingManifestResourceException(
"IOException while reading CLDR root data, " +
"type: CollationRoot, bundle: " + ICUData.IcuBundle + "/coll/ucadata.icu", e);
}
catch (Exception e)
{
e2 = e;
}
exception = e2;
return(t);
}
static CollationRoot()
{ // Corresponds to C++ load() function.
CollationTailoring t = null;
Exception e2 = null;
try
{
// ICU4N specific - passing in assembly name so we resolve to this assembly rather than ICU4N.dll
ByteBuffer bytes = ICUBinary.GetRequiredData(typeof(CollationRoot).GetTypeInfo().Assembly, null, "coll/ucadata.icu");
CollationTailoring t2 = new CollationTailoring(null);
CollationDataReader.Read(null, bytes, t2);
// Keep t=null until after the root data has been read completely.
// Otherwise we would set a non-null root object if the data reader throws an exception.
t = t2;
}
catch (IOException e)
{
e2 = new MissingManifestResourceException(
"IOException while reading CLDR root data, " +
"type: CollationRoot, bundle: " + ICUData.ICU_BUNDLE + "/coll/ucadata.icu", e);
}
catch (Exception e)
{
e2 = e;
}
rootSingleton = t;
exception = e2;
}
/// <summary>
/// Gets a <see cref="StringPrep"/> instance for the specified profile.
/// </summary>
/// <param name="profile">The profile passed to find the <see cref="StringPrep"/> instance.</param>
/// <stable>ICU 4.2</stable>
public static StringPrep GetInstance(StringPrepProfile profile)
{
if (profile < 0 || profile > MAX_PROFILE)
{
throw new ArgumentException("Bad profile type");
}
StringPrep instance = null;
// A StringPrep instance is immutable. We use a single instance
// per type and store it in the internal cache.
lock (CACHE)
{
#if FEATURE_TYPEDWEAKREFERENCE
WeakReference <StringPrep> @ref = CACHE[(int)profile];
#else
WeakReference @ref = CACHE[(int)profile];
#endif
if (@ref != null)
{
#if FEATURE_TYPEDWEAKREFERENCE
//instance = @ref.Get();
@ref.TryGetTarget(out instance);
#else
instance = (StringPrep)@ref.Target;
#endif
}
if (instance == null)
{
ByteBuffer bytes = ICUBinary.GetRequiredData(PROFILE_NAMES[(int)profile] + ".spp");
if (bytes != null)
{
try
{
instance = new StringPrep(bytes);
}
catch (IOException e)
{
throw new ICUUncheckedIOException(e);
}
}
if (instance != null)
{
#if FEATURE_TYPEDWEAKREFERENCE
CACHE[(int)profile] = new WeakReference <StringPrep>(instance);
#else
CACHE[(int)profile] = new WeakReference(instance);
#endif
}
}
}
return(instance);
}
public static DictionaryMatcher LoadDictionaryFor(string dictType)
{
ICUResourceBundle rb = (ICUResourceBundle)UResourceBundle.GetBundleInstance(ICUData.IcuBreakIteratorBaseName); // com/ibm/icu/impl/data/icudt60b/brkitr
string dictFileName = rb.GetStringWithFallback("dictionaries/" + dictType);
// ICU4N TODO: Possibly rename the above and use this syntax instead...?
//var rm = new ResourceManager(ICUData.ICU_BRKITR_BASE_NAME, typeof(DictionaryData).GetTypeInfo().Assembly);
//string dictFileName = rm.GetString("dictionaries_" + dictType);
dictFileName = ICUData.IcuBreakIteratorName + '/' + dictFileName;
ByteBuffer bytes = ICUBinary.GetRequiredData(dictFileName);
ICUBinary.ReadHeader(bytes, DATA_FORMAT_ID, null);
int[] indexes = new int[IX_COUNT];
// TODO: read indexes[IX_STRING_TRIE_OFFSET] first, then read a variable-length indexes[]
for (int i = 0; i < IX_COUNT; i++)
{
indexes[i] = bytes.GetInt32();
}
int offset = indexes[IX_STRING_TRIE_OFFSET];
Assert.Assrt(offset >= (4 * IX_COUNT));
if (offset > (4 * IX_COUNT))
{
int diff = offset - (4 * IX_COUNT);
ICUBinary.SkipBytes(bytes, diff);
}
int trieType = indexes[IX_TRIE_TYPE] & TRIE_TYPE_MASK;
int totalSize = indexes[IX_TOTAL_SIZE] - offset;
DictionaryMatcher m = null;
if (trieType == TRIE_TYPE_BYTES)
{
int transform = indexes[IX_TRANSFORM];
byte[] data = new byte[totalSize];
bytes.Get(data);
m = new BytesDictionaryMatcher(data, transform);
}
else if (trieType == TRIE_TYPE_UCHARS)
{
Assert.Assrt(totalSize % 2 == 0);
string data = ICUBinary.GetString(bytes, totalSize / 2, totalSize & 1);
m = new CharsDictionaryMatcher(data);
}
else
{
m = null;
}
return(m);
}