FolkerKinzel.Strings
Text
Examines a read-only Byte span, that represents the contents
of a text file, to see if it starts with a Byte Order Mark (BOM), and returns an
appropriate code page. (The fallback value is 65001 for UTF-8.)
Definition
Namespace: FolkerKinzel.Strings
Assembly: FolkerKinzel.Strings (in FolkerKinzel.Strings.dll) Version: 9.4.0+10a7d4d71aa960998e32ac0ac6c4fcbe4164c917
An appropriate code page for data or the code page for UTF-8 (65001) if the code page could not be determined from data.
Assembly: FolkerKinzel.Strings (in FolkerKinzel.Strings.dll) Version: 9.4.0+10a7d4d71aa960998e32ac0ac6c4fcbe4164c917
C#
public static int GetCodePage(
ReadOnlySpan<byte> data,
out int bomLength
)VB
Public Shared Function GetCodePage (
data As ReadOnlySpan(Of Byte),
<OutAttribute> ByRef bomLength As Integer
) As IntegerC++
public:
static int GetCodePage(
ReadOnlySpan<unsigned char> data,
[OutAttribute] int% bomLength
)F#
static member GetCodePage :
data : ReadOnlySpan<byte> *
bomLength : int byref -> int Parameters
- data ReadOnlySpanByte
- The span to examine. It should be at least 4 Bytes long.
- bomLength Int32
- When the method returns, it contains the length of the BOM found or zero if no BOM was found. The parameter is passed uninitialized.
Return Value
Int32An appropriate code page for data or the code page for UTF-8 (65001) if the code page could not be determined from data.
Remarks
The method recognizes the byte order marks for the following character sets:
- UTF-8
- UTF-16LE
- UTF-16BE
- UTF-32LE
- UTF-32BE
- UTF-7
- GB18030
UTF-16LE, UTF-16BE, UTF-32LE and UTF-32BE can also be recognized by the method from the data if there is no Byte Order Mark.