EncodingNLS
using System.Diagnostics.CodeAnalysis;
namespace System.Text
{
internal abstract class EncodingNLS : Encoding
{
private string _encodingName;
private string _webName;
public override string EncodingName {
get {
if (_encodingName == null) {
_encodingName = GetLocalizedEncodingNameResource(CodePage);
if (_encodingName == null)
throw new NotSupportedException(System.SR.Format(System.SR.MissingEncodingNameResource, WebName, CodePage));
if (_encodingName.StartsWith("Globalization_cp_", StringComparison.OrdinalIgnoreCase)) {
_encodingName = System.Text.EncodingTable.GetEnglishNameFromCodePage(CodePage);
if (_encodingName == null)
throw new NotSupportedException(System.SR.Format(System.SR.MissingEncodingNameResource, WebName, CodePage));
}
}
return _encodingName;
}
}
public override string WebName {
get {
if (_webName == null) {
_webName = System.Text.EncodingTable.GetWebNameFromCodePage(CodePage);
if (_webName == null)
throw new NotSupportedException(System.SR.Format(System.SR.NotSupported_NoCodepageData, CodePage));
}
return _webName;
}
}
public override string HeaderName {
get {
switch (CodePage) {
case 932:
return "iso-2022-jp";
case 50221:
return "iso-2022-jp";
case 50225:
return "euc-kr";
default:
return WebName;
}
}
}
public override string BodyName {
get {
switch (CodePage) {
case 932:
return "iso-2022-jp";
case 1250:
return "iso-8859-2";
case 1251:
return "koi8-r";
case 1252:
return "iso-8859-1";
case 1253:
return "iso-8859-7";
case 1254:
return "iso-8859-9";
case 50221:
return "iso-2022-jp";
case 50225:
return "iso-2022-kr";
default:
return WebName;
}
}
}
protected EncodingNLS(int codePage)
: base(codePage)
{
}
protected EncodingNLS(int codePage, EncoderFallback enc, DecoderFallback dec)
: base(codePage, enc, dec)
{
}
public unsafe abstract int GetByteCount(char* chars, int count, System.Text.EncoderNLS encoder);
public unsafe abstract int GetBytes(char* chars, int charCount, byte* bytes, int byteCount, System.Text.EncoderNLS encoder);
public unsafe abstract int GetCharCount(byte* bytes, int count, System.Text.DecoderNLS decoder);
public unsafe abstract int GetChars(byte* bytes, int byteCount, char* chars, int charCount, System.Text.DecoderNLS decoder);
public unsafe override int GetByteCount(char[] chars, int index, int count)
{
if (chars == null)
throw new ArgumentNullException("chars");
if (index < 0 || count < 0)
throw new ArgumentOutOfRangeException((index < 0) ? "index" : "count", System.SR.ArgumentOutOfRange_NeedNonNegNum);
if (chars.Length - index < count)
throw new ArgumentOutOfRangeException("chars", System.SR.ArgumentOutOfRange_IndexCountBuffer);
if (chars.Length != 0) {
fixed (char* ptr = &chars[0]) {
return GetByteCount(ptr + index, count, null);
}
}
return 0;
}
public unsafe override int GetByteCount(string s)
{
if (s != null) {
fixed (char* chars = s) {
return GetByteCount(chars, s.Length, null);
}
}
throw new ArgumentNullException("s");
}
public unsafe override int GetByteCount(char* chars, int count)
{
if (chars == null)
throw new ArgumentNullException("chars");
if (count < 0)
throw new ArgumentOutOfRangeException("count", System.SR.ArgumentOutOfRange_NeedNonNegNum);
return GetByteCount(chars, count, null);
}
public unsafe override int GetBytes(string s, int charIndex, int charCount, byte[] bytes, int byteIndex)
{
if (s == null)
throw new ArgumentNullException("s");
if (bytes == null)
throw new ArgumentNullException("bytes");
if (charIndex < 0 || charCount < 0)
throw new ArgumentOutOfRangeException((charIndex < 0) ? "charIndex" : "charCount", System.SR.ArgumentOutOfRange_NeedNonNegNum);
if (s.Length - charIndex < charCount)
throw new ArgumentOutOfRangeException("s", System.SR.ArgumentOutOfRange_IndexCount);
if (byteIndex >= 0 && byteIndex <= bytes.Length) {
int byteCount = bytes.Length - byteIndex;
fixed (char* ptr = s) {
fixed (byte* ptr2 = &CodePagesEncodingProvider.GetNonNullPinnableReference(bytes)) {
return GetBytes(ptr + charIndex, charCount, ptr2 + byteIndex, byteCount, null);
}
}
}
throw new ArgumentOutOfRangeException("byteIndex", System.SR.ArgumentOutOfRange_IndexMustBeLessOrEqual);
}
public unsafe override int GetBytes(char[] chars, int charIndex, int charCount, byte[] bytes, int byteIndex)
{
if (chars == null)
throw new ArgumentNullException("chars");
if (bytes == null)
throw new ArgumentNullException("bytes");
if (charIndex < 0 || charCount < 0)
throw new ArgumentOutOfRangeException((charIndex < 0) ? "charIndex" : "charCount", System.SR.ArgumentOutOfRange_NeedNonNegNum);
if (chars.Length - charIndex < charCount)
throw new ArgumentOutOfRangeException("chars", System.SR.ArgumentOutOfRange_IndexCountBuffer);
if (byteIndex < 0 || byteIndex > bytes.Length)
throw new ArgumentOutOfRangeException("byteIndex", System.SR.ArgumentOutOfRange_IndexMustBeLessOrEqual);
if (chars.Length != 0) {
int byteCount = bytes.Length - byteIndex;
fixed (char* ptr = &chars[0]) {
fixed (byte* ptr2 = &CodePagesEncodingProvider.GetNonNullPinnableReference(bytes)) {
return GetBytes(ptr + charIndex, charCount, ptr2 + byteIndex, byteCount, null);
}
}
}
return 0;
}
public unsafe override int GetBytes(char* chars, int charCount, byte* bytes, int byteCount)
{
if (chars == null)
throw new ArgumentNullException("chars");
if (bytes == null)
throw new ArgumentNullException("bytes");
if (charCount < 0 || byteCount < 0)
throw new ArgumentOutOfRangeException((charCount < 0) ? "charCount" : "byteCount", System.SR.ArgumentOutOfRange_NeedNonNegNum);
return GetBytes(chars, charCount, bytes, byteCount, null);
}
public unsafe override int GetCharCount(byte[] bytes, int index, int count)
{
if (bytes == null)
throw new ArgumentNullException("bytes");
if (index < 0 || count < 0)
throw new ArgumentOutOfRangeException((index < 0) ? "index" : "count", System.SR.ArgumentOutOfRange_NeedNonNegNum);
if (bytes.Length - index < count)
throw new ArgumentOutOfRangeException("bytes", System.SR.ArgumentOutOfRange_IndexCountBuffer);
if (bytes.Length != 0) {
fixed (byte* ptr = &bytes[0]) {
return GetCharCount(ptr + index, count, null);
}
}
return 0;
}
public unsafe override int GetCharCount(byte* bytes, int count)
{
if (bytes == null)
throw new ArgumentNullException("bytes");
if (count < 0)
throw new ArgumentOutOfRangeException("count", System.SR.ArgumentOutOfRange_NeedNonNegNum);
return GetCharCount(bytes, count, null);
}
public unsafe override int GetChars(byte[] bytes, int byteIndex, int byteCount, char[] chars, int charIndex)
{
if (bytes == null)
throw new ArgumentNullException("bytes");
if (chars == null)
throw new ArgumentNullException("chars");
if (byteIndex < 0 || byteCount < 0)
throw new ArgumentOutOfRangeException((byteIndex < 0) ? "byteIndex" : "byteCount", System.SR.ArgumentOutOfRange_NeedNonNegNum);
if (bytes.Length - byteIndex < byteCount)
throw new ArgumentOutOfRangeException("bytes", System.SR.ArgumentOutOfRange_IndexCountBuffer);
if (charIndex < 0 || charIndex > chars.Length)
throw new ArgumentOutOfRangeException("charIndex", System.SR.ArgumentOutOfRange_IndexMustBeLessOrEqual);
if (bytes.Length != 0) {
int charCount = chars.Length - charIndex;
fixed (byte* ptr = &bytes[0]) {
fixed (char* ptr2 = &CodePagesEncodingProvider.GetNonNullPinnableReference(chars)) {
return GetChars(ptr + byteIndex, byteCount, ptr2 + charIndex, charCount, null);
}
}
}
return 0;
}
public unsafe override int GetChars(byte* bytes, int byteCount, char* chars, int charCount)
{
if (bytes == null)
throw new ArgumentNullException("bytes");
if (chars == null)
throw new ArgumentNullException("chars");
if (charCount < 0 || byteCount < 0)
throw new ArgumentOutOfRangeException((charCount < 0) ? "charCount" : "byteCount", System.SR.ArgumentOutOfRange_NeedNonNegNum);
return GetChars(bytes, byteCount, chars, charCount, null);
}
public unsafe override string GetString(byte[] bytes, int index, int count)
{
if (bytes == null)
throw new ArgumentNullException("bytes");
if (index < 0 || count < 0)
throw new ArgumentOutOfRangeException((index < 0) ? "index" : "count", System.SR.ArgumentOutOfRange_NeedNonNegNum);
if (bytes.Length - index < count)
throw new ArgumentOutOfRangeException("bytes", System.SR.ArgumentOutOfRange_IndexCountBuffer);
if (bytes.Length != 0) {
fixed (byte* ptr = &bytes[0]) {
return GetString(ptr + index, count);
}
}
return string.Empty;
}
public override Decoder GetDecoder()
{
return new System.Text.DecoderNLS(this);
}
public override Encoder GetEncoder()
{
return new System.Text.EncoderNLS(this);
}
internal void ThrowBytesOverflow(System.Text.EncoderNLS encoder, bool nothingEncoded)
{
if ((encoder?.m_throwOnOverflow ?? true) | nothingEncoded) {
if (encoder != null && encoder.InternalHasFallbackBuffer)
encoder.FallbackBuffer.Reset();
ThrowBytesOverflow();
}
encoder.ClearMustFlush();
}
internal void ThrowCharsOverflow(System.Text.DecoderNLS decoder, bool nothingDecoded)
{
if ((decoder?.m_throwOnOverflow ?? true) | nothingDecoded) {
if (decoder != null && decoder.InternalHasFallbackBuffer)
decoder.FallbackBuffer.Reset();
ThrowCharsOverflow();
}
decoder.ClearMustFlush();
}
[System.Diagnostics.CodeAnalysis.DoesNotReturn]
internal void ThrowBytesOverflow()
{
throw new ArgumentException(System.SR.Format(System.SR.Argument_EncodingConversionOverflowBytes, EncodingName, base.EncoderFallback.GetType()), "bytes");
}
[System.Diagnostics.CodeAnalysis.DoesNotReturn]
internal void ThrowCharsOverflow()
{
throw new ArgumentException(System.SR.Format(System.SR.Argument_EncodingConversionOverflowChars, EncodingName, base.DecoderFallback.GetType()), "chars");
}
internal static string GetLocalizedEncodingNameResource(int codePage)
{
switch (codePage) {
case 37:
return System.SR.Globalization_cp_37;
case 437:
return System.SR.Globalization_cp_437;
case 500:
return System.SR.Globalization_cp_500;
case 708:
return System.SR.Globalization_cp_708;
case 720:
return System.SR.Globalization_cp_720;
case 737:
return System.SR.Globalization_cp_737;
case 775:
return System.SR.Globalization_cp_775;
case 850:
return System.SR.Globalization_cp_850;
case 852:
return System.SR.Globalization_cp_852;
case 855:
return System.SR.Globalization_cp_855;
case 857:
return System.SR.Globalization_cp_857;
case 858:
return System.SR.Globalization_cp_858;
case 860:
return System.SR.Globalization_cp_860;
case 861:
return System.SR.Globalization_cp_861;
case 862:
return System.SR.Globalization_cp_862;
case 863:
return System.SR.Globalization_cp_863;
case 864:
return System.SR.Globalization_cp_864;
case 865:
return System.SR.Globalization_cp_865;
case 866:
return System.SR.Globalization_cp_866;
case 869:
return System.SR.Globalization_cp_869;
case 870:
return System.SR.Globalization_cp_870;
case 874:
return System.SR.Globalization_cp_874;
case 875:
return System.SR.Globalization_cp_875;
case 932:
return System.SR.Globalization_cp_932;
case 936:
return System.SR.Globalization_cp_936;
case 949:
return System.SR.Globalization_cp_949;
case 950:
return System.SR.Globalization_cp_950;
case 1026:
return System.SR.Globalization_cp_1026;
case 1047:
return System.SR.Globalization_cp_1047;
case 1140:
return System.SR.Globalization_cp_1140;
case 1141:
return System.SR.Globalization_cp_1141;
case 1142:
return System.SR.Globalization_cp_1142;
case 1143:
return System.SR.Globalization_cp_1143;
case 1144:
return System.SR.Globalization_cp_1144;
case 1145:
return System.SR.Globalization_cp_1145;
case 1146:
return System.SR.Globalization_cp_1146;
case 1147:
return System.SR.Globalization_cp_1147;
case 1148:
return System.SR.Globalization_cp_1148;
case 1149:
return System.SR.Globalization_cp_1149;
case 1250:
return System.SR.Globalization_cp_1250;
case 1251:
return System.SR.Globalization_cp_1251;
case 1252:
return System.SR.Globalization_cp_1252;
case 1253:
return System.SR.Globalization_cp_1253;
case 1254:
return System.SR.Globalization_cp_1254;
case 1255:
return System.SR.Globalization_cp_1255;
case 1256:
return System.SR.Globalization_cp_1256;
case 1257:
return System.SR.Globalization_cp_1257;
case 1258:
return System.SR.Globalization_cp_1258;
case 1361:
return System.SR.Globalization_cp_1361;
case 10000:
return System.SR.Globalization_cp_10000;
case 10001:
return System.SR.Globalization_cp_10001;
case 10002:
return System.SR.Globalization_cp_10002;
case 10003:
return System.SR.Globalization_cp_10003;
case 10004:
return System.SR.Globalization_cp_10004;
case 10005:
return System.SR.Globalization_cp_10005;
case 10006:
return System.SR.Globalization_cp_10006;
case 10007:
return System.SR.Globalization_cp_10007;
case 10008:
return System.SR.Globalization_cp_10008;
case 10010:
return System.SR.Globalization_cp_10010;
case 10017:
return System.SR.Globalization_cp_10017;
case 10021:
return System.SR.Globalization_cp_10021;
case 10029:
return System.SR.Globalization_cp_10029;
case 10079:
return System.SR.Globalization_cp_10079;
case 10081:
return System.SR.Globalization_cp_10081;
case 10082:
return System.SR.Globalization_cp_10082;
case 20000:
return System.SR.Globalization_cp_20000;
case 20001:
return System.SR.Globalization_cp_20001;
case 20002:
return System.SR.Globalization_cp_20002;
case 20003:
return System.SR.Globalization_cp_20003;
case 20004:
return System.SR.Globalization_cp_20004;
case 20005:
return System.SR.Globalization_cp_20005;
case 20105:
return System.SR.Globalization_cp_20105;
case 20106:
return System.SR.Globalization_cp_20106;
case 20107:
return System.SR.Globalization_cp_20107;
case 20108:
return System.SR.Globalization_cp_20108;
case 20261:
return System.SR.Globalization_cp_20261;
case 20269:
return System.SR.Globalization_cp_20269;
case 20273:
return System.SR.Globalization_cp_20273;
case 20277:
return System.SR.Globalization_cp_20277;
case 20278:
return System.SR.Globalization_cp_20278;
case 20280:
return System.SR.Globalization_cp_20280;
case 20284:
return System.SR.Globalization_cp_20284;
case 20285:
return System.SR.Globalization_cp_20285;
case 20290:
return System.SR.Globalization_cp_20290;
case 20297:
return System.SR.Globalization_cp_20297;
case 20420:
return System.SR.Globalization_cp_20420;
case 20423:
return System.SR.Globalization_cp_20423;
case 20424:
return System.SR.Globalization_cp_20424;
case 20833:
return System.SR.Globalization_cp_20833;
case 20838:
return System.SR.Globalization_cp_20838;
case 20866:
return System.SR.Globalization_cp_20866;
case 20871:
return System.SR.Globalization_cp_20871;
case 20880:
return System.SR.Globalization_cp_20880;
case 20905:
return System.SR.Globalization_cp_20905;
case 20924:
return System.SR.Globalization_cp_20924;
case 20932:
return System.SR.Globalization_cp_20932;
case 20936:
return System.SR.Globalization_cp_20936;
case 20949:
return System.SR.Globalization_cp_20949;
case 21025:
return System.SR.Globalization_cp_21025;
case 21027:
return System.SR.Globalization_cp_21027;
case 21866:
return System.SR.Globalization_cp_21866;
case 28592:
return System.SR.Globalization_cp_28592;
case 28593:
return System.SR.Globalization_cp_28593;
case 28594:
return System.SR.Globalization_cp_28594;
case 28595:
return System.SR.Globalization_cp_28595;
case 28596:
return System.SR.Globalization_cp_28596;
case 28597:
return System.SR.Globalization_cp_28597;
case 28598:
return System.SR.Globalization_cp_28598;
case 28599:
return System.SR.Globalization_cp_28599;
case 28603:
return System.SR.Globalization_cp_28603;
case 28605:
return System.SR.Globalization_cp_28605;
case 29001:
return System.SR.Globalization_cp_29001;
case 38598:
return System.SR.Globalization_cp_38598;
case 50000:
return System.SR.Globalization_cp_50000;
case 50220:
return System.SR.Globalization_cp_50220;
case 50221:
return System.SR.Globalization_cp_50221;
case 50222:
return System.SR.Globalization_cp_50222;
case 50225:
return System.SR.Globalization_cp_50225;
case 50227:
return System.SR.Globalization_cp_50227;
case 50229:
return System.SR.Globalization_cp_50229;
case 50930:
return System.SR.Globalization_cp_50930;
case 50931:
return System.SR.Globalization_cp_50931;
case 50933:
return System.SR.Globalization_cp_50933;
case 50935:
return System.SR.Globalization_cp_50935;
case 50937:
return System.SR.Globalization_cp_50937;
case 50939:
return System.SR.Globalization_cp_50939;
case 51932:
return System.SR.Globalization_cp_51932;
case 51936:
return System.SR.Globalization_cp_51936;
case 51949:
return System.SR.Globalization_cp_51949;
case 52936:
return System.SR.Globalization_cp_52936;
case 54936:
return System.SR.Globalization_cp_54936;
case 57002:
return System.SR.Globalization_cp_57002;
case 57003:
return System.SR.Globalization_cp_57003;
case 57004:
return System.SR.Globalization_cp_57004;
case 57005:
return System.SR.Globalization_cp_57005;
case 57006:
return System.SR.Globalization_cp_57006;
case 57007:
return System.SR.Globalization_cp_57007;
case 57008:
return System.SR.Globalization_cp_57008;
case 57009:
return System.SR.Globalization_cp_57009;
case 57010:
return System.SR.Globalization_cp_57010;
case 57011:
return System.SR.Globalization_cp_57011;
default:
return null;
}
}
}
}