MemoryExtensionsStripPrefix(ReadOnlyMemoryChar, ReadOnlySpanChar, CultureInfo, CompareOptions) Method

Removes a prefix from a read-only memory region of characters.

Definition

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

C#

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

VB

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

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

returnValue = memory.StripPrefix(prefix, 
	culture, options)

C++

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

Parameters

memory ReadOnlyMemoryChar: The memory region of characters to remove the prefix from.
prefix ReadOnlySpanChar: The prefix to remove.
culture CultureInfo: The CultureInfo to use to match the prefix.
options CompareOptions (Optional): The options to use for the string comparison.

Return Value

NullableReadOnlyMemoryChar
If memory starts with prefix, returns the memory region without the prefix; otherwise, returns .

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.