Add configurable delimiter for Invoke-FzfPsReadlineHandlerProvider multi-select (#352)

* Initial plan

* Add PSReadlineChordProviderDelimiter option to Set-PsFzfOption

Co-authored-by: kelleyma49 <2152684+kelleyma49@users.noreply.github.com>

* Update documentation for PSReadlineChordProviderDelimiter option

Co-authored-by: kelleyma49 <2152684+kelleyma49@users.noreply.github.com>

* Rename PSReadlineChordProviderDelimiter to PsReadlineHandlerProviderDelimiter

Co-authored-by: kelleyma49 <2152684+kelleyma49@users.noreply.github.com>

---------

Co-authored-by: copilot-swe-agent[bot] <198982749+Copilot@users.noreply.github.com>
Co-authored-by: kelleyma49 <2152684+kelleyma49@users.noreply.github.com>

Author: Copilot

PSFzf.Base.ps1

@@ -145,6 +145,7 @@ $script:FzfLocation = $null
 $script:OverrideFzfDefaults = $null
 $script:PSReadlineHandlerChords = @()
 $script:TabContinuousTrigger = [IO.Path]::DirectorySeparatorChar.ToString()
+$script:PsReadlineHandlerProviderDelimiter = ','
 
 $MyInvocation.MyCommand.ScriptBlock.Module.OnRemove =
 {
@@ -203,7 +204,9 @@ function Set-PsFzfOption {
 		[string]
 		$TabContinuousTrigger,
 		[ScriptBlock]
-		$AltCCommand
+		$AltCCommand,
+		[string]
+		$PsReadlineHandlerProviderDelimiter
 	)
 	if ($PSBoundParameters.ContainsKey('TabExpansion')) {
 		SetTabExpansion $TabExpansion
@@ -250,6 +253,10 @@ function Set-PsFzfOption {
 	if ($PSBoundParameters.ContainsKey('AltCCommand')) {
 		$script:AltCCommand = $AltCCommand
 	}
+
+	if ($PSBoundParameters.ContainsKey('PsReadlineHandlerProviderDelimiter')) {
+		$script:PsReadlineHandlerProviderDelimiter = $PsReadlineHandlerProviderDelimiter
+	}
 }
 
 function Stop-Pipeline {
@@ -810,7 +817,7 @@ function Invoke-FzfPsReadlineHandlerProvider {
 			$result = FixCompletionResult $result
 		}
 
-		$str = $result -join ','
+		$str = $result -join $script:PsReadlineHandlerProviderDelimiter
 		if ($addSpace) {
 			$str = ' ' + $str
 		}

PSFzf.tests.ps1

@@ -600,6 +600,34 @@ Describe "Check Parameters" {
 	}
 }
 
+Describe "Set-PsFzfOption PsReadlineHandlerProviderDelimiter" {
+	InModuleScope PsFzf {
+		Context "Default delimiter is comma" {
+			It "Should default to comma" {
+				# The default delimiter should be ','
+				$script:PsReadlineHandlerProviderDelimiter | Should -Be ','
+			}
+		}
+
+		Context "Can override delimiter" {
+			It "Should allow setting custom delimiter" {
+				Set-PsFzfOption -PsReadlineHandlerProviderDelimiter ' '
+				$script:PsReadlineHandlerProviderDelimiter | Should -Be ' '
+			}
+
+			It "Should allow setting to semicolon" {
+				Set-PsFzfOption -PsReadlineHandlerProviderDelimiter ';'
+				$script:PsReadlineHandlerProviderDelimiter | Should -Be ';'
+			}
+
+			It "Should allow setting back to comma" {
+				Set-PsFzfOption -PsReadlineHandlerProviderDelimiter ','
+				$script:PsReadlineHandlerProviderDelimiter | Should -Be ','
+			}
+		}
+	}
+}
+
 Describe "Get-EditorLaunch" {
 
 

README.md

@@ -32,7 +32,7 @@ For day-to-day usage, see the [helper functions included with this module](https
 
 Press <kbd>Ctrl+t</kbd> to start PSFzf to select provider paths.  PSFzf will parse the current token and use that as the starting path to search from.  If current token is empty, or the token isn't a valid path, PSFzf will search below the current working directory.
 
-Multiple items can be selected.  If more than one is selected by the user, the results are returned as a comma separated list.  Results are properly quoted if they contain whitespace.
+Multiple items can be selected.  If more than one is selected by the user, the results are returned as a comma separated list (the delimiter can be customized using `Set-PsFzfOption -PsReadlineHandlerProviderDelimiter`).  Results are properly quoted if they contain whitespace.
 
 ### Reverse Search Through PSReadline History (default chord: <kbd>Ctrl+r</kbd>)
 

docs/Set-PsFzfOption.md

@@ -249,6 +249,28 @@ Default value: None
 Accept pipeline input: False
 Accept wildcard characters: False
 ```
+
+### -PsReadlineHandlerProviderDelimiter
+Specifies the delimiter character used to join multiple selected files when using the PSReadlineChordProvider (Ctrl+t by default). 
+
+```powershell
+# example - use space as delimiter instead of comma:
+Set-PsFzfOption -PsReadlineHandlerProviderDelimiter ' '
+
+# example - use semicolon as delimiter:
+Set-PsFzfOption -PsReadlineHandlerProviderDelimiter ';'
+```
+```yaml
+Type: String
+Parameter Sets: (All)
+Aliases: 
+
+Required: False
+Position: Named
+Default value: ','
+Accept pipeline input: False
+Accept wildcard characters: False
+```
 ## INPUTS
 ### None