ImHex pattern for https://github.com/dotnet/runtime/blob/v6.0.7/src/libraries/System.Text.Encoding.CodePages/src/Data/codepages.nlp

codepages_nlp.hexpat

// structures are based on https://github.com/dotnet/runtime/blob/v6.0.7/src/libraries/System.Text.Encoding.CodePages/src/System/Text/BaseCodePageEncoding.cs

struct CodePageHeader {
	char16 codePageName[16];
	u16 version[4];
	u16 codePage;
	u16 byteCount;
	u32 offset;
	u16 unicodeReplace;
	u16 byteReplace;
};
struct NLSPlusHeader {
	char16 filename[16];
	u16 version[4];
	u16 count;
	padding[2];
};
struct NLSCodePageIndex {
	char16 codePageName[16];
	u16 codePage;
	u16 byteCount;
	CodePageHeader *offset: u32;
};
NLSPlusHeader header @ 0x00;
NLSCodePageIndex index[header.count] @ $;