public static bool IsKey(string s)
{
// 2alphanum
return((s.Length == 2) && AsciiUtil.IsAlphaNumeric(s));
}
internal CaseInsensitiveChar(char c)
{
_c = c;
_hash = AsciiUtil.ToLower(_c);// ICU4N specific - cache hash code, since this is an immutable object
}
private static void InitFromResourceBundle()
{
UResourceBundle keyTypeDataRes = UResourceBundle.GetBundleInstance(
ICUData.ICU_BASE_NAME,
"keyTypeData",
ICUResourceBundle.ICU_DATA_CLASS_LOADER);
GetKeyInfo(keyTypeDataRes.Get("keyInfo"));
GetTypeInfo(keyTypeDataRes.Get("typeInfo"));
UResourceBundle keyMapRes = keyTypeDataRes.Get("keyMap");
UResourceBundle typeMapRes = keyTypeDataRes.Get("typeMap");
// alias data is optional
UResourceBundle typeAliasRes = null;
UResourceBundle bcpTypeAliasRes = null;
try
{
typeAliasRes = keyTypeDataRes.Get("typeAlias");
}
catch (MissingManifestResourceException e)
{
// fall through
}
try
{
bcpTypeAliasRes = keyTypeDataRes.Get("bcpTypeAlias");
}
catch (MissingManifestResourceException e)
{
// fall through
}
// iterate through keyMap resource
using (UResourceBundleEnumerator keyMapItr = keyMapRes.GetEnumerator())
{
IDictionary <string, IList <string> > _Bcp47Keys = new Dictionary <string, IList <string> >(); // ICU4N NOTE: As long as we don't delete, Dictionary keeps insertion order the same as LinkedHashMap
while (keyMapItr.MoveNext())
{
UResourceBundle keyMapEntry = keyMapItr.Current;
string legacyKeyId = keyMapEntry.Key;
string bcpKeyId = keyMapEntry.GetString();
bool hasSameKey = false;
if (bcpKeyId.Length == 0)
{
// Empty value indicates that BCP key is same with the legacy key.
bcpKeyId = legacyKeyId;
hasSameKey = true;
}
IList <string> _bcp47Types = new List <string>(); // ICU4N: Mimic LinkedHashSet with List by ensuring no duplicates are added
_Bcp47Keys[bcpKeyId] = _bcp47Types.ToUnmodifiableList();
bool isTZ = legacyKeyId.Equals("timezone");
// reverse type alias map
IDictionary <string, ISet <string> > typeAliasMap = null;
if (typeAliasRes != null)
{
UResourceBundle typeAliasResByKey = null;
try
{
typeAliasResByKey = typeAliasRes.Get(legacyKeyId);
}
catch (MissingManifestResourceException e)
{
// fall through
}
if (typeAliasResByKey != null)
{
typeAliasMap = new Dictionary <string, ISet <string> >();
using (UResourceBundleEnumerator typeAliasResItr = typeAliasResByKey.GetEnumerator())
{
while (typeAliasResItr.MoveNext())
{
UResourceBundle typeAliasDataEntry = typeAliasResItr.Current;
string from = typeAliasDataEntry.Key;
string to = typeAliasDataEntry.GetString();
if (isTZ)
{
from = from.Replace(':', '/');
}
ISet <string> aliasSet = typeAliasMap.Get(to);
if (aliasSet == null)
{
aliasSet = new HashSet <string>();
typeAliasMap[to] = aliasSet;
}
aliasSet.Add(from);
}
}
}
}
// reverse bcp type alias map
IDictionary <string, ISet <string> > bcpTypeAliasMap = null;
if (bcpTypeAliasRes != null)
{
UResourceBundle bcpTypeAliasResByKey = null;
try
{
bcpTypeAliasResByKey = bcpTypeAliasRes.Get(bcpKeyId);
}
catch (MissingManifestResourceException e)
{
// fall through
}
if (bcpTypeAliasResByKey != null)
{
bcpTypeAliasMap = new Dictionary <string, ISet <string> >();
using (UResourceBundleEnumerator bcpTypeAliasResItr = bcpTypeAliasResByKey.GetEnumerator())
{
while (bcpTypeAliasResItr.MoveNext())
{
UResourceBundle bcpTypeAliasDataEntry = bcpTypeAliasResItr.Current;
string from = bcpTypeAliasDataEntry.Key;
string to = bcpTypeAliasDataEntry.GetString();
ISet <string> aliasSet = bcpTypeAliasMap.Get(to);
if (aliasSet == null)
{
aliasSet = new HashSet <string>();
bcpTypeAliasMap[to] = aliasSet;
}
aliasSet.Add(from);
}
}
}
}
IDictionary <string, Type> typeDataMap = new Dictionary <string, Type>();
ISet <SpecialType> specialTypeSet = null;
// look up type map for the key, and walk through the mapping data
UResourceBundle typeMapResByKey = null;
try
{
typeMapResByKey = typeMapRes.Get(legacyKeyId);
}
catch (MissingManifestResourceException e)
{
// type map for each key must exist
Debug.Assert(false);
}
if (typeMapResByKey != null)
{
using (UResourceBundleEnumerator typeMapResByKeyItr = typeMapResByKey.GetEnumerator())
while (typeMapResByKeyItr.MoveNext())
{
UResourceBundle typeMapEntry = typeMapResByKeyItr.Current;
string legacyTypeId = typeMapEntry.Key;
string bcpTypeId = typeMapEntry.GetString();
// special types
char first = legacyTypeId[0];
bool isSpecialType = '9' < first && first < 'a' && bcpTypeId.Length == 0;
if (isSpecialType)
{
if (specialTypeSet == null)
{
specialTypeSet = new HashSet <SpecialType>();
}
specialTypeSet.Add((SpecialType)Enum.Parse(typeof(SpecialType), legacyTypeId, true));
if (!_bcp47Types.Contains(legacyTypeId)) // ICU4N: Mimic LinkedHashSet with a List by not allowing duplicates
{
_bcp47Types.Add(legacyTypeId);
}
continue;
}
if (isTZ)
{
// a timezone key uses a colon instead of a slash in the resource.
// e.g. America:Los_Angeles
legacyTypeId = legacyTypeId.Replace(':', '/');
}
bool hasSameType = false;
if (bcpTypeId.Length == 0)
{
// Empty value indicates that BCP type is same with the legacy type.
bcpTypeId = legacyTypeId;
hasSameType = true;
}
if (!_bcp47Types.Contains(legacyTypeId)) // ICU4N: Mimic LinkedHashSet with a List by not allowing duplicates
{
_bcp47Types.Add(bcpTypeId);
}
// Note: legacy type value should never be
// equivalent to bcp type value of a different
// type under the same key. So we use a single
// map for lookup.
Type t = new Type(legacyTypeId, bcpTypeId);
typeDataMap[AsciiUtil.ToLower(legacyTypeId)] = t;
if (!hasSameType)
{
typeDataMap[AsciiUtil.ToLower(bcpTypeId)] = t;
}
// Also put aliases in the map
if (typeAliasMap != null)
{
ISet <string> typeAliasSet = typeAliasMap.Get(legacyTypeId);
if (typeAliasSet != null)
{
foreach (string alias in typeAliasSet)
{
typeDataMap[AsciiUtil.ToLower(alias)] = t;
}
}
}
if (bcpTypeAliasMap != null)
{
ISet <string> bcpTypeAliasSet = bcpTypeAliasMap.Get(bcpTypeId);
if (bcpTypeAliasSet != null)
{
foreach (string alias in bcpTypeAliasSet)
{
typeDataMap[AsciiUtil.ToLower(alias)] = t;
}
}
}
}
}
KeyData keyData = new KeyData(legacyKeyId, bcpKeyId, typeDataMap, specialTypeSet);
KEYMAP[AsciiUtil.ToLower(legacyKeyId)] = keyData;
if (!hasSameKey)
{
KEYMAP[AsciiUtil.ToLower(bcpKeyId)] = keyData;
}
}
BCP47_KEYS = _Bcp47Keys.ToUnmodifiableDictionary();
}
}
private static void InitFromTables()
{
foreach (object[] keyDataEntry in KEY_DATA)
{
string legacyKeyId = (string)keyDataEntry[0];
string bcpKeyId = (string)keyDataEntry[1];
string[][] typeData = (string[][])keyDataEntry[2];
string[][] typeAliasData = (string[][])keyDataEntry[3];
string[][] bcpTypeAliasData = (string[][])keyDataEntry[4];
bool hasSameKey = false;
if (bcpKeyId == null)
{
bcpKeyId = legacyKeyId;
hasSameKey = true;
}
// reverse type alias map
IDictionary <string, ISet <string> > typeAliasMap = null;
if (typeAliasData != null)
{
typeAliasMap = new Dictionary <string, ISet <string> >();
foreach (string[] typeAliasDataEntry in typeAliasData)
{
string from = typeAliasDataEntry[0];
string to = typeAliasDataEntry[1];
ISet <string> aliasSet;
if (!typeAliasMap.TryGetValue(to, out aliasSet) || aliasSet == null)
{
aliasSet = new HashSet <string>();
typeAliasMap[to] = aliasSet;
}
aliasSet.Add(from);
}
}
// BCP type alias map data
IDictionary <string, ISet <string> > bcpTypeAliasMap = null;
if (bcpTypeAliasData != null)
{
bcpTypeAliasMap = new Dictionary <string, ISet <string> >();
foreach (string[] bcpTypeAliasDataEntry in bcpTypeAliasData)
{
string from = bcpTypeAliasDataEntry[0];
string to = bcpTypeAliasDataEntry[1];
ISet <string> aliasSet;
if (!bcpTypeAliasMap.TryGetValue(to, out aliasSet) || aliasSet == null)
{
aliasSet = new HashSet <string>();
bcpTypeAliasMap[to] = aliasSet;
}
aliasSet.Add(from);
}
}
// Type map data
Debug.Assert(typeData != null);
IDictionary <string, Type> typeDataMap = new Dictionary <string, Type>();
ISet <SpecialType> specialTypeSet = null;
foreach (string[] typeDataEntry in typeData)
{
string legacyTypeId = typeDataEntry[0];
string bcpTypeId = typeDataEntry[1];
// special types
bool isSpecialType = false;
foreach (SpecialType st in Enum.GetValues(typeof(SpecialType)))
{
if (legacyTypeId.Equals(st.ToString()))
{
isSpecialType = true;
if (specialTypeSet == null)
{
specialTypeSet = new HashSet <SpecialType>();
}
specialTypeSet.Add(st);
break;
}
}
if (isSpecialType)
{
continue;
}
bool hasSameType = false;
if (bcpTypeId == null)
{
bcpTypeId = legacyTypeId;
hasSameType = true;
}
// Note: legacy type value should never be
// equivalent to bcp type value of a different
// type under the same key. So we use a single
// map for lookup.
Type t = new Type(legacyTypeId, bcpTypeId);
typeDataMap[AsciiUtil.ToLower(legacyTypeId)] = t;
if (!hasSameType)
{
typeDataMap[AsciiUtil.ToLower(bcpTypeId)] = t;
}
// Also put aliases in the index
ISet <string> typeAliasSet;
if (typeAliasMap.TryGetValue(legacyTypeId, out typeAliasSet) && typeAliasSet != null)
{
foreach (string alias in typeAliasSet)
{
typeDataMap[AsciiUtil.ToLower(alias)] = t;
}
}
ISet <string> bcpTypeAliasSet;
if (!bcpTypeAliasMap.TryGetValue(bcpTypeId, out bcpTypeAliasSet) && bcpTypeAliasSet != null)
{
foreach (string alias in bcpTypeAliasSet)
{
typeDataMap[AsciiUtil.ToLower(alias)] = t;
}
}
}
ISet <SpecialType> specialTypes = null;
if (specialTypeSet != null)
{
specialTypes = new HashSet <SpecialType>(specialTypeSet);
}
KeyData keyData = new KeyData(legacyKeyId, bcpKeyId, typeDataMap, specialTypes);
KEYMAP[AsciiUtil.ToLower(legacyKeyId)] = keyData;
if (!hasSameKey)
{
KEYMAP[AsciiUtil.ToLower(bcpKeyId)] = keyData;
}
}
}
public static string CanonicalizeRegion(string s)
{
return(AsciiUtil.ToUpperString(s));
}
public static string CanonicalizeExtensionSubtag(string s)
{
return(AsciiUtil.ToLowerString(s));
}
public override int GetHashCode()
{
return(AsciiUtil.ToLowerString(_s).GetHashCode());
}
public static string CanonicalizeExtlang(string s)
{
return(AsciiUtil.ToLowerString(s));
}
public virtual Extension GetExtension(char key)
{
_map.TryGetValue(AsciiUtil.ToLower(key), out Extension result);
return(result);
}
/// <summary>
/// Internal constructor, only used by <see cref="InternalLocaleBuilder"/>.
/// </summary>
internal LocaleExtensions(IDictionary <CaseInsensitiveChar, string> extensions,
ISet <CaseInsensitiveString> uattributes, IDictionary <CaseInsensitiveString, string> ukeywords)
{
bool hasExtension = (extensions != null && extensions.Count > 0);
bool hasUAttributes = (uattributes != null && uattributes.Count > 0);
bool hasUKeywords = (ukeywords != null && ukeywords.Count > 0);
if (!hasExtension && !hasUAttributes && !hasUKeywords)
{
_map = EmptyMap;
_id = "";
return;
}
// Build extension map
_map = new JCG.SortedDictionary <char, Extension>();
if (hasExtension)
{
foreach (var ext in extensions)
{
char key = AsciiUtil.ToLower(ext.Key.Value);
string value = ext.Value;
if (LanguageTag.IsPrivateusePrefixChar(key))
{
// we need to exclude special variant in privuateuse, e.g. "x-abc-lvariant-DEF"
value = InternalLocaleBuilder.RemovePrivateuseVariant(value);
if (value == null)
{
continue;
}
}
Extension e = new Extension(key, AsciiUtil.ToLower(value));
_map[key] = e;
}
}
if (hasUAttributes || hasUKeywords)
{
JCG.SortedSet <string> uaset = null;
JCG.SortedDictionary <string, string> ukmap = null;
if (hasUAttributes)
{
uaset = new JCG.SortedSet <string>(StringComparer.Ordinal);
foreach (CaseInsensitiveString cis in uattributes)
{
uaset.Add(AsciiUtil.ToLower(cis.Value));
}
}
if (hasUKeywords)
{
ukmap = new JCG.SortedDictionary <string, string>(StringComparer.Ordinal);
foreach (var kwd in ukeywords)
{
string key = AsciiUtil.ToLower(kwd.Key.Value);
string type = AsciiUtil.ToLower(kwd.Value);
ukmap[key] = type;
}
}
UnicodeLocaleExtension ule = new UnicodeLocaleExtension(uaset, ukmap);
_map[UnicodeLocaleExtension.Singleton] = ule;
}
if (_map.Count == 0)
{
// this could happen when only privuateuse with special variant
_map = EmptyMap;
_id = "";
}
else
{
_id = ToID(_map);
}
}
public static string CanonicalizeExtensionSingleton(string s)
{
return(AsciiUtil.ToLower(s));
}
//
// Language subtag canonicalization methods
//
public static string CanonicalizeLanguage(string s)
{
return(AsciiUtil.ToLower(s));
}
public static bool IsAttribute(string s)
{
// 3*8alphanum
return((s.Length >= 3) && (s.Length <= 8) && AsciiUtil.IsAlphaNumericString(s));
}
public static bool IsPrivateusePrefixChar(char c)
{
return(AsciiUtil.CaseIgnoreMatch(PRIVATEUSE, new string(new char[] { c })));
}
public override int GetHashCode()
{
return(AsciiUtil.ToLower(_c));
}
public static bool IsPrivateuseSubtag(string s)
{
// privateuse = "x" 1*("-" (1*8alphanum))
return((s.Length >= 1) && (s.Length <= 8) && AsciiUtil.IsAlphaNumericString(s));
}
public AsciiCaseInsensitiveKey(string key)
{
_key = key;
_hash = AsciiUtil.ToLower(key).GetHashCode();
}
public static string CanonicalizeScript(string s)
{
return(AsciiUtil.ToTitleString(s));
}
public static LanguageTag ParseLocale(BaseLocale baseLocale, LocaleExtensions localeExtensions)
{
LanguageTag tag = new LanguageTag();
string language = baseLocale.GetLanguage();
string script = baseLocale.GetScript();
string region = baseLocale.GetRegion();
string variant = baseLocale.GetVariant();
bool hasSubtag = false;
string privuseVar = null; // store ill-formed variant subtags
if (language.Length > 0 && IsLanguage(language))
{
// Convert a deprecated language code used by Java to
// a new code
if (language.Equals("iw"))
{
language = "he";
}
else if (language.Equals("ji"))
{
language = "yi";
}
else if (language.Equals("in"))
{
language = "id";
}
tag._language = language;
}
if (script.Length > 0 && IsScript(script))
{
tag._script = CanonicalizeScript(script);
hasSubtag = true;
}
if (region.Length > 0 && IsRegion(region))
{
tag._region = CanonicalizeRegion(region);
hasSubtag = true;
}
// ICU4N TODO: Remove ?
if (JDKIMPL)
{
// Special handling for no_NO_NY - use nn_NO for language tag
if (tag._language.Equals("no") && tag._region.Equals("NO") && variant.Equals("NY")) // ICU4N TODO: Fix this handling for .NET (no-NO is not reliable across platforms)
{
tag._language = "nn";
variant = "";
}
}
if (variant.Length > 0)
{
List <string> variants = null;
StringTokenEnumerator varitr = new StringTokenEnumerator(variant, BaseLocale.SEP);
while (varitr.MoveNext())
{
string var = varitr.Current;
if (!IsVariant(var))
{
break;
}
if (variants == null)
{
variants = new List <string>();
}
if (JDKIMPL)
{
variants.Add(var); // Do not canonicalize!
}
else
{
variants.Add(CanonicalizeVariant(var));
}
}
if (variants != null)
{
tag._variants = variants;
hasSubtag = true;
}
if (!varitr.IsDone)
{
// ill-formed variant subtags
StringBuilder buf = new StringBuilder();
while (!varitr.IsDone)
{
string prvv = varitr.Current;
if (!IsPrivateuseSubtag(prvv))
{
// cannot use private use subtag - truncated
break;
}
if (buf.Length > 0)
{
buf.Append(SEP);
}
if (!JDKIMPL)
{
prvv = AsciiUtil.ToLowerString(prvv);
}
buf.Append(prvv);
varitr.MoveNext();
}
if (buf.Length > 0)
{
privuseVar = buf.ToString();
}
}
}
List <string> extensions = null;
string privateuse = null;
var locextKeys = localeExtensions.Keys;
foreach (char locextKey in locextKeys)
{
Extension ext = localeExtensions.GetExtension(locextKey);
if (IsPrivateusePrefixChar(locextKey))
{
privateuse = ext.Value;
}
else
{
if (extensions == null)
{
extensions = new List <string>();
}
extensions.Add(locextKey.ToString() + SEP + ext.Value);
}
}
if (extensions != null)
{
tag._extensions = extensions;
hasSubtag = true;
}
// append ill-formed variant subtags to private use
if (privuseVar != null)
{
if (privateuse == null)
{
privateuse = PRIVUSE_VARIANT_PREFIX + SEP + privuseVar;
}
else
{
privateuse = privateuse + SEP + PRIVUSE_VARIANT_PREFIX + SEP + privuseVar.Replace(BaseLocale.SEP, SEP);
}
}
if (privateuse != null)
{
tag._privateuse = privateuse;
}
if (tag._language.Length == 0 && (hasSubtag || privateuse == null))
{
// use lang "und" when 1) no language is available AND
// 2) any of other subtags other than private use are available or
// no private use tag is available
tag._language = UNDETERMINED;
}
return(tag);
}
public static string CanonicalizeVariant(string s)
{
return(AsciiUtil.ToLowerString(s));
}
public static bool IsExtlang(string s)
{
// extlang = 3ALPHA ; selected ISO 639 codes
// *2("-" 3ALPHA) ; permanently reserved
return((s.Length == 3) && AsciiUtil.IsAlphaString(s));
}
public static string CanonicalizePrivateuseSubtag(string s)
{
return(AsciiUtil.ToLowerString(s));
}
public static bool IsScript(String s)
{
// script = 4ALPHA ; ISO 15924 code
return((s.Length == 4) && AsciiUtil.IsAlphaString(s));
}
internal abstract bool IsWellFormed(string value); // doesn't test validity, just whether it is well formed.
internal string Canonicalize(string value)
{
return(AsciiUtil.ToLower(value));
}
public static bool IsExtensionSubtag(string s)
{
// extension = singleton 1*("-" (2*8alphanum))
return((s.Length >= 2) && (s.Length <= 8) && AsciiUtil.IsAlphaNumericString(s));
}
public static bool IsSingletonChar(char c)
{
return(Singleton == AsciiUtil.ToLower(c));
}
public static bool IsPrivateusePrefix(string s)
{
// privateuse = "x" 1*("-" (1*8alphanum))
return((s.Length == 1) &&
AsciiUtil.CaseIgnoreMatch(PRIVATEUSE, s));
}
public static bool IsTypeSubtag(string s)
{
// 3*8alphanum
return((s.Length >= 3) && (s.Length <= 8) && AsciiUtil.IsAlphaNumeric(s));
}
internal CaseInsensitiveString(string s)
{
_s = s;
_hash = AsciiUtil.ToLower(_s).GetHashCode(); // ICU4N specific - cache hash code, since this is an immutable object
}