MemoryExtensionsSplitOnce(ReadOnlyMemoryChar, ReadOnlySpanChar, CultureInfo, CompareOptions) Method

Splits a read-only memory region of characters into two parts at the first occurrence of a separator.

Definition

Namespace: Ookii.Common
Assembly: Ookii.Common (in Ookii.Common.dll) Version: 1.0.0+7c2900b8a16cd8ae46bdd79d8f105034712c5fa3

C#

public static (ReadOnlyMemory<char> , ReadOnlyMemory<char> )? SplitOnce(
	this ReadOnlyMemory<char> memory,
	ReadOnlySpan<char> separator,
	CultureInfo culture,
	CompareOptions options = CompareOptions.None
)

VB

<ExtensionAttribute>
Public Shared Function SplitOnce ( 
	memory As ReadOnlyMemory(Of Char),
	separator As ReadOnlySpan(Of Char),
	culture As CultureInfo,
	Optional options As CompareOptions = CompareOptions.None
) As ( As ReadOnlyMemory(Of Char),  As ReadOnlyMemory(Of Char))?

Dim memory As ReadOnlyMemory(Of Char)
Dim separator As ReadOnlySpan(Of Char)
Dim culture As CultureInfo
Dim options As CompareOptions
Dim returnValue As ( As ReadOnlyMemory(Of Char),  As ReadOnlyMemory(Of Char))?

returnValue = memory.SplitOnce(separator, 
	culture, options)

C++

public:
[ExtensionAttribute]
static Nullable<ValueTuple<ReadOnlyMemory<wchar_t>, ReadOnlyMemory<wchar_t>>> SplitOnce(
	ReadOnlyMemory<wchar_t> memory, 
	ReadOnlySpan<wchar_t> separator, 
	CultureInfo^ culture, 
	CompareOptions options = CompareOptions::None
)

Parameters

memory ReadOnlyMemoryChar: The memory region to split.
separator ReadOnlySpanChar: A span of characters containing the separator to split on.
culture CultureInfo: The CultureInfo to use to perform string comparison when finding the separator.
options CompareOptions (Optional): The options to use for the string comparison.

Return Value

NullableValueTupleReadOnlyMemoryChar, ReadOnlyMemoryChar
If the separator was found, a tuple containing the parts before and after the separator; otherwise, .

Usage Note

In Visual Basic and C#, you can call this method as an instance method on any object of type ReadOnlyMemoryChar. When you use instance method syntax to call this method, omit the first parameter. For more information, see Extension Methods (Visual Basic) or Extension Methods (C# Programming Guide).

Remarks

When using the .Net Standard 2.0 or 2.1 version of this library, this method may allocate strings to perform the comparison. This is because the CompareInfo class does not provide string comparison methods for use with ReadOnlyMemoryT.