…ndows PowerShell

replaced LengthInBufferCells() method with Unicode adapted code from PSReadline

removed code to show a GUI prompt for credentials as PSCore6 prompts in console

This commit adds tests for negative limits to the -split operator. The intended change to allow -split to accept a negative integer as a limit for "backwards" (right-to-left) splitting should work both when splitting using a scriptblock/predicate or a regex pattern

This commit adds the RightToLeft option to the Regex instance in SplitWithPattern() when the limit value specified by the user is negative. Using the RightToLeft options would ensure minimal overhead to existing cases with a positive or no limit.

SplitWithPredicate() is modified to inspect characters from right to left by introducing a cursor from which the strIndex derives its value. Works well but requires explicit checking and reversing of the string buffer before populating the resulting list when working right-to-left.

This reverts commit 1d59be0.

…s PowerShell (#5133)

Currently, it's using the same location as Windows PowerShell and the two should not be sharing one as the PSModulePaths are different between the two.

* wrapped STA code sections in `#if STAMODE` for potential future use
removed -importsystemmodules switch from powershell.exe and related code
removed -consolefile parameter from powershell.exe and related code

* removed font and codepage handling code that is only applicable to Windows PowerShell
replaced LengthInBufferCells() method with Unicode adapted code from PSReadline

* removed `#if CORECLR` statements merging code base

* [feature]
removed code to show a GUI prompt for credentials as PSCore6 prompts in console

* Remove unncessary method 'LengthInBufferCellsFE'

…, otherwise the built script will not run (#5137)

- Add Get-WebListenerUrl Based Examples to WebListener README.md
- Fix Cert test example

- Rename powershell.exe to pwsh.exe
- Fixe appveyor.psm1
- Update MSI to include 'pwsh' in path and app paths
- Revert change for hyper-v powershell direct
- Update names in packaging.psm1.
- Fix check for SxS

Closes #4274

Adds an -Authentication parameter to Invoke-RestMethod and Invoke-WebRequest
Adds an -Token parameter to Invoke-RestMethod and Invoke-WebRequest
Adds an -AllowUnencryptedAuthentication parameter to Invoke-RestMethod and Invoke-WebRequest
Adds tests for various -Authorization uses
-Authentication Parameter has 3 options: Basic, OAuth, and Bearer
Basic requires -Credential and provides RFC-7617 Basic Authorization credentials to the remote server
OAuth and Bearer require the -Token which is a SecureString containing the bearer token to send to the remote server
If any authentication is provided for any transport scheme other than HTTPS, the request will result in an error. A user may use the -AllowUnencryptedAuthentication switch to bypass this behavior and send their secrets unencrypted at their own risk.
-Authentication does not work with -UseDefaultCredentials and will result in an error.
The existing behavior with -Credential is left untouched. When not supplying -Authentication, A user will not receive an error when using -Credential over unencrypted connections.

Code design choice is meant to accommodate more Authentication types in the future.

Documentation Needed

The 3 new parameters will need to be added to the Invoke-RestMethod and Invoke-WebRequest documentation along with examples. Syntax will need to be updated.

The old implementation always set the new object's properties to null.

For PSCore 6, we are only supporting InitialSessionState. The RunspaceConfiguration APIs were already made internal. This PR removes all the code related to RunspaceConfiguration. This also means that some public APIs have changed. Was deciding between leaving the RunspaceConfiguration parameters and throwing Unsupported, but thought it was better to have it a compile-time error. This should simplify the code base.

This commit changes instantiatiation of the list used for substring chunks in SplitWithPredicate(), to have a specific capacity whenever known up front.

Fixed inconsistent bracing style with if/else as well

- Exclude 'Get-PSHostProcessInfo', 'Enter-PSHostProcess' and 'Exit-PSHostProcess' from Unix platforms.
- Update tests and add additional cmdlets need to be excluded

This commit changes instantiatiation of the list used for substring chunks in SplitWithPredicate(), to have a specific capacity whenever known up front.

Fixed inconsistent bracing style with if/else as well

In case no Max-substrings argument is passed when calling -split with a predicate, set the capacity of the resulting list to item.Length + 1 to avoid re-allocating the underlying array multiple times

-split supports array input, but using -split with a scriptblock doesn't currently have any tests for array input

A previously introduced modification to the limit parameter caused subsequent strings to be processed left-to-right when using negative Max-substrings against array input. Moved to local variable maxSubstrings

Simplified logic for Right-to-left splitting by moving Abs(limit) assignment out of loop. Pre-emptive return on limit == 1 moved out as well

Re-instantiating the string buffer in SplitWithPredicate() seems unnecessary, moved declaration outside loop, replaced reassignments with buf.Clear()

In order to avoid having to either call buf.Insert() or implement a custom Reverse() method for StringBuilder, I've replaced the char buffer in SplitWithPredicate() with a List<char>

…owerShell into enhance-Split-RTL-1