Export-RegEx.ps1
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function Export-RegEx { <# .Synopsis Exports a RegEx .Description Exports one or more Regular Expressions .Link Import-RegEx .Link Set-RegEx .Example Export-RegEx -Name Digits, Decimals -Path $home\MyRegExs .Example Export-RegEx -Name Digits, Decimals -As Script # Creates a script that embedes the expressions and Use-RegEx .Notes When exporting as a script, Use-RegEx is renamed to UseRegex. This enables embedding the core of Irregular and your Regular Expressions into a module while making it easy to avoid exporting Irregular. To use this within a module, make sure your module explicitly exports commands, or exports with a wildcard like '*-*'. #> [CmdletBinding(SupportsShouldProcess=$true)] param( # The name of the regular expression. If not provided, this can be inferred if the pattern starts with a capture [Parameter(ValueFromPipelineByPropertyName)] [string[]] $Name, # The export path. # If this is not provided, it will export regular expressions to the user's Irregular module path. [Parameter(ValueFromPipelineByPropertyName)] [string] $Path, # How the expression will be exported. [ValidateSet('Metadata', 'File','Pattern','Hashtable', 'String','Variable', 'Alias','Script','Lambda','Engine','EmbeddedEngine')] [string] $As = 'File', # If provided, will rename -RegEx commands with the provided -Noun. # This option is only valid when -As is Engine. # It prevents name conflicts with Irregular. [string] $Noun ) begin { $exportContent = [Collections.ArrayList]::new() } process { if (-not $PSBoundParameters.Pattern -and -not $PSBoundParameters.Name) { Write-Error "Must provide a pattern or a name" -ErrorId Irregular.Missing.Pattern.And.Name return } #region Find the Export Path if (-not $path -and $as -eq 'File') { # If haven't been provided a path and we're exporting to a file $modulePaths = # find the preferred path $env:PSModulePath -split $(if ($PSVersionTable.Platform -eq 'Unix') { ':' } else {';' }) $preferredPath = foreach ($mp in $modulePaths) { # It's the first valid module path if ($PSVersionTable.Platform -eq 'Unix' -and $mp -like '/usr/*') { # beneath /usr/ (on Unix) $mp;break } if ($PSVersionTable.Platform -ne 'Unix' -and $mp -like "$env:USERPROFILE*") { # or %userprofile% (on Windows) $mp;break } } if (-not $preferredPath) { return } $path = $preferredPath.TrimEnd([IO.Path]::DirectorySeparatorChar), 'Irregular', 'RegEx' -join [IO.Path]::DirectorySeparatorChar if (-not [IO.Directory]::Exists($Path)) { $path = New-Item -ItemType Directory -Path $path -Force if (-not $path) { return } } } #endregion Find the Export Path if ($path -match '/|\\.+?\.' -and $name.Count -and $as -eq 'File') { Write-Error "Must provide a directory if exporting more than one regular expression into files" -ErrorId Irregular.One.Too.Many.Exports return } if (-not $Name) { $Name = $Script:_RegexLibrary.Keys } $exportContent.AddRange(@( foreach ($n in $Name) { $regex = $Script:_RegexLibraryMetaData.$n if ($as -eq 'File') { $ext = if ($_.IsGenerator) { 'ps1' } else { 'txt' } $dest = Join-Path $Path "$n.regex.$ext" if ($regex.Path -and $regex.Path -ne $dest) { Copy-Item -LiteralPath $regex.Path -Destination $dest } elseif (-not $regex.Path -and $regex.Pattern) { Set-Regex -Path $Path -Name $n -Pattern $regex.Pattern } } else { $regex } })) } end { $toExport = @(if ($exportContent.Count) { $exportNames = $exportContent | Select-Object -ExpandProperty Name Get-RegEx -Name $exportNames -As $As -Noun $Noun }) -join [Environment]::NewLine if ($Path -and $toExport) { $toExport | Set-Content $Path -Encoding UTF8 } elseif ($toExport) { $toExport } } } |