Refactor ctor DetectionDetail: not all codepage names are supported by .NET

[rstm-sf]

Hello!

Refactor ctor DetectionDetail(string, float, CharsetProber, TimeSpan?, string): not all codepage names are supported by .NET.

Code like Split('(').First().Trim() looks redundant.

To do this, will need to consider that not all codepage names are supported by .NET (see CodepageName by #74). Also, it will be necessary to indicate explicitly in the readme that not all Encoding exists.

And maybe it will be possible to get rid of try / catch?

• [x] Resolve TODO in CodepageName.cs
  • [x] Resolve #75
  • [x] Resolve #82
  • [x] Not supported iso-2022-ch? Maybe fix to x-cp50227?
  • [x] Not supported CP949? Attention!: it is superset of _ks_c5601-1987 (see https://github.com/CharsetDetector/UTF-unknown/pull/74#issuecomment-550362133)
  • [x] TODO: Not supported? -- If possible, get rid of all such or process separately
  • [x] TODO: Are other aliases ... (I think can simply remove TODO: because important identifier)
• [x] (Optional) to get rid of try / catch in ctor DetectionDetail
• [x] Update README.md

[304NotModified]

Also, it will be necessary to indicate explicitly in the readme that not all Encoding exists.

Sounds good!

And maybe it will be possible to get rid of try / catch?

That would be nice if it's 100% safe

[rstm-sf]

That would be nice if it's 100% safe

Class CodepageName was created based on .net core source :)

https://github.com/CharsetDetector/UTF-unknown/blob/cc2b081a621001aedfac20229bd555585d366e9f/src/Core/CodepageName.cs#L33-L36

All unsupported can be added to some object and check before calling Encoding.GetEncoding(string)

[304NotModified]

Nice! I checked a lot of files, but missed that :angel:

[rstm-sf]

Not supported iso-2022-ch? Maybe fix to x-cp50227?

see

https://docs.microsoft.com/en-us/windows/win32/intl/code-page-identifiers

https://github.com/microsoft/referencesource/blob/17b97365645da62cf8a49444d979f94a59bbb155/mscorlib/system/text/iso2022encoding.cs#L30

https://github.com/dotnet/corefx/blob/cf28b7896a762f71c990a5896a160a4138d833c9/src/System.Text.Encoding.CodePages/src/System/Text/EncodingTable.Data.cs#L342

https://github.com/dotnet/corefx/blob/cf28b7896a762f71c990a5896a160a4138d833c9/src/System.Text.Encoding.CodePages/src/System/Text/EncodingTable.Data.cs#L65

https://github.com/mirror/reactos/blob/c6d2b35ffc91e09f50dfb214ea58237509329d6b/reactos/dll/win32/kernel32/winnls/lang/en-US.rc#L153-L154

https://www.ibm.com/support/pages/codepage-conversion-fails-mbcs002e-connectdirect-windows-after-upgrading-os-windows-2000-server

[rstm-sf]

Sorry, but the tasks is not yet completed. I wait #86