ConvertFrom-SourceTable.ps1
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<#PSScriptInfo
.VERSION 0.5.1 .GUID 0019a810-97ea-4f9a-8cd5-4babecdc916b .AUTHOR iRon .COMPANYNAME .COPYRIGHT .TAGS Read Input Convert Resource Table Format MarkDown .LICENSE https://github.com/iRon7/ConvertFrom-SourceTable/LICENSE.txt .PROJECTURI https://github.com/iRon7/ConvertFrom-SourceTable .ICON https://raw.githubusercontent.com/iRon7/Join-Object/master/ConvertFrom-SourceTable.png .EXTERNALMODULEDEPENDENCIES .REQUIREDSCRIPTS .EXTERNALSCRIPTDEPENDENCIES .RELEASENOTES .PRIVATEDATA #> <# .SYNOPSIS Converts a fixed column table to objects. .DESCRIPTION The [ConvertFrom-SourceTable] cmdlet creates objects from a fixed column source table possibly surrounded by horizontal and/or vertical rulers. **Definitions:** * The width of a source table column is outlined by the header width, the ruler width and the width of the data. * Column and Data alignment (none, left, right or justified) is defined by the existence of any (non-separator) character at the start or end of a column. * Column alignment (which is used for a default field alignment) is defined by the first and last character or space of the header and the ruler of the outlined column. .PARAMETER InputObject Specifies the source table strings to be converted to objects. Enter a variable that contains the source table strings or type a command or expression that gets the source table strings. You might also pipe the source table strings to [ConvertFrom-SourceTable]. Note that streamed table rows are intermediately processed and released for the next cmdlet. In this mode, there is a higher possibility that floating tables or column data cannot be determined to be part of a specific column (as there is no overview of the table data that follows). To resolve this, provide all rows in once or use one of the following [-Header] and/or [-Ruler] parameters. .PARAMETER Header A string that defines the header line of an headless table or a multiple strings where each item represents the column name. In case the header contains a single string, it is used to define the (property) names, the size and alignment of the column, therefore it is key that the columns names are properly aligned with the rest of the column (including any table indents). If the header contains multiple strings, each string will be used to define the property names of each object. In this case, column alignment is based on the rest of the data and possible ruler. [!TIP] To skip a column, set the header name of the concerned column index to an empty string (or `$Null`). .PARAMETER Ruler A string that replaces any (horizontal) ruler in the input table which helps to define character columns in occasions where the table column margins are indefinable. .PARAMETER HorizontalDash This parameter (Alias `-HDash`) defines the horizontal ruler character. By default, each streamed table row (or a total raw table) will be searched for a ruler existing out of horizontal dash characters (`-`), spaces and possible vertical dashes. If the ruler is found, the prior line is presumed to be the header. If the ruler is not found within the first (two) streamed data lines, the first line is presumed the header line. If `-HorizontalDash` explicitly defined, all (streamed) lines will be searched for a matching ruler. If `-HorizontalDash` is set to `$Null`, the first data line is presumed the header line (unless the [-VerticalDash] parameter is set). .PARAMETER VerticalDash This parameter (Alias `-VDash`) defines the vertical ruler character. By default, each streamed table row (or a total raw table) will be searched for a header with vertical dash characters (`|`). If the header is not found within the first streamed data line, the first line is presumed the header line. If `-VerticalDash` explicitly defined, all (streamed) lines will be searched for a header with a vertical dash character. If `-VerticalDash` is set to `$Null`, the first data line is presumed the header line (unless the [-HorizontalDash] parameter is set). .PARAMETER Junction The -Junction parameter (default: "+") defines the character used for the junction between the horizontal ruler and vertical ruler. .PARAMETER Anchor The -Anchor parameter (default: `:`) defines the character used for the alignment anchor. If used in the header row, it will be used to define the default alignment, meaning that justified (full width) values will be parsed. .PARAMETER Omit A string of characters to omit from the header and data. Each omitted character will be replaced with a space. .PARAMETER ParseRightAligned This parameter will cause any right aligned data to be parsed according to the following formatting and alignment rules: * Data that is left aligned will be parsed to the generic column type which is a string by default. * Data that is right aligned will be parsed. * Data that is justified (using the full column with) is following the the header alignment and parsed if the header is right aligned. * The default column type can be set by prefixing the column name with a standard (PowerShell) cast operator (a data type enclosed in square brackets, e.g.: `[Int]ID`) #### Caution Take reasonable precautions when using the `-ParseRightAligned` parameter in scripts. When using the `-ParseRightAligned` parameter to convert data from a table, verify that the data is safe to be parsed before running it. .EXAMPLE # Restore objects from a Format-Table output The following loads the file properties from general PowerShell output table: $Files = ConvertFrom-SourceTable ' Mode LastWriteTime Length Name ---- ------------- ------ ---- d----l 11/16/2018 8:30 PM Archive -a---l 5/22/2018 12:05 PM (726) Build-Expression.ps1 -a---l 11/16/2018 7:38 PM 2143 CHANGELOG -a---l 11/17/2018 10:42 AM 14728 ConvertFrom-SourceTable.ps1 -a---l 11/17/2018 11:04 AM 23909 ConvertFrom-SourceTable.Tests.ps1 -a---l 8/4/2018 11:04 AM (6237) Import-SourceTable.ps1' > Note that it is generally not a good practice to use console output cmdlets > as e.g. [Format-Table] for anything else than displaying the results. .EXAMPLE # Convert from a markdown table The following command loads a list of employee objects from a markdown table: $Employees = ConvertFrom-SourceTable ' | Department | Name | Country | | ----------- | ------- | ------- | | Sales | Aerts | Belgium | | Engineering | Bauer | Germany | | Sales | Cook | England | | Engineering | Duval | France | | Marketing | Evans | England | | Engineering | Fischer | Germany |' .EXAMPLE # Parse right aligned data In the following example each item in the (hexadecimal) `Value` column will be parsed to integer value and each item in the `RGB` column to an array with three values. $Colors = ConvertFrom-SourceTable -Parse ' Name Value RGB ---- ----- --- Black 0x000000 0,0,0 White 0xFFFFFF 255,255,255 Red 0xFF0000 255,0,0 Lime 0x00FF00 0,255,0 Blue 0x0000FF 0,0,255 Yellow 0xFFFF00 255,255,0 Cyan 0x00FFFF 0,255,255 Magenta 0xFF00FF 255,0,255 Silver 0xC0C0C0 192,192,192 Gray 0x808080 128,128,128 Maroon 0x800000 128,0,0 Olive 0x808000 128,128,0 Green 0x008000 0,128,0 Purple 0x800080 128,0,128 Teal 0x008080 0,128,128 Navy 0x000080 0,0,128' $Colors | Where {$_.Name -eq "Red"} Name Value RGB ---- ----- --- Red 16711680 {255, 0, 0} .EXAMPLE # Custom column types In the following example each item in the first column is casted to a `version` object and each item in the second column to a `DateTime` object.\ Notice that the type name is used as a property name in case column name is omitted. $ChangeLog = ConvertFrom-SourceTable -Parse ' [Version] [DateTime]Date Author Comments --------- -------------- ------ -------- 0.0.10 2018-05-03 Ronald Bode First design 0.0.20 2018-05-09 Ronald Bode Pester ready version 0.0.21 2018-05-09 Ronald Bode removed support for String[] types 0.0.22 2018-05-24 Ronald Bode Better "right aligned" definition 0.0.23 2018-05-25 Ronald Bode Resolved single column bug 0.0.24 2018-05-26 Ronald Bode Treating markdown table input as an option 0.0.25 2018-05-27 Ronald Bode Resolved error due to blank top lines' .LINK https://github.com/iRon7/ConvertFrom-SourceTable #> [CmdletBinding()][OutputType([Object[]])] param( [Parameter(ValueFromPipeLine = $True)] [String[]]$InputObject, [String[]]$Header, [string]$Ruler, [Alias("HDash")] [char]$HorizontalDash = '-', [Alias("VDash")] [char]$VerticalDash = '|', [char]$Junction = '+', [char]$Anchor = ':', [string]$Omit, [switch]$ParseRightAligned, [ValidateScript({ Throw [System.Management.Automation.ValidationMetadataException]'The -Literal parameter is depreciated and enabled by default, use -ParseRightAligned to disable.' })][switch]$Literal ) begin { enum Alignment{ None; Left; Right; Justified } enum Mask{ All = 8; Header = 4; Ruler = 2; Data = 1 } $Auto = !$PSBoundParameters.ContainsKey('HorizontalDash') -and !$PSBoundParameters.ContainsKey('VerticalDash') $HRx = if ($HorizontalDash) { '\x{0:X2}' -f [int]$HorizontalDash } $VRx = if ($VerticalDash) { '\x{0:X2}' -f [int]$VerticalDash } $JNx = if ($Junction) { '\x{0:X2}' -f [int]$Junction } $ANx = if ($Anchor) { '\x{0:X2}' -f [int]$Anchor } $RulerPattern = if ($VRx) { "^[$HRx$VRx$JNx$ANx\s]*$HRx[$HRx$VRx$JNx$ANx\s]*$" } elseif ($HRx) { "^[$HRx\s]*$HRx[$HRx\s]*$" } else { '\A(?!x)x' } if (!$PSBoundParameters.ContainsKey('Ruler') -and $HRx) { Remove-Variable 'Ruler'; $Ruler = $Null } if (!$Ruler -and !$HRx -and !$VRx) { $Ruler = '' } if ($Ruler) { $Ruler = $Ruler -split '[\r\n]+' | Where-Object { $_.Trim() } | Select-Object -First 1 } $HeaderLine = if ($Header -is [Array] -and $Header.Count -gt 1) { '' } elseif ($Header) { $Header } $TopLine = if ($HeaderLine) { '' } $LastLine,$OuterLeftColumn,$OuterRightColumn,$Mask = $Null $RowIndex = 0; $Padding = 0; $Columns = [System.Collections.Generic.List[HashTable]]::new() $Property = [System.Collections.Specialized.OrderedDictionary]::new() # Include support from PSv2 function Null { $Null }; function True { $True }; function False { $False }; # Wrappers function Debug-Column { if ($VRx) { Write-Debug $Mask } else { Write-Debug (($Mask | ForEach-Object { if ($_) { '{0:x}' -f $_ } else { ' ' } }) -join '') } $CharArray = (' ' * ($Columns[-1].End + 1)).ToCharArray() for ($i = 0; $i -lt $Columns.Count; $i++) { $Column = $Columns[$i] for ($c = $Column.Start + $Padding; $c -le $Column.End - $Padding; $c++) { $CharArray[$c] = '-' } $CharArray[($Column.Start + $Column.End) / 2] = "$i"[-1] if ($Column.Alignment -band [Alignment]::Left) { $CharArray[$Column.Start + $Padding] = ':' } if ($Column.Alignment -band [Alignment]::Right) { $CharArray[$Column.End - $Padding] = ':' } } Write-Debug ($CharArray -join '') } function Mask ([string]$Line,[byte]$Or = [Mask]::Data) { $Init = [Mask]::All * ($Null -eq $Mask) if ($Init) { ([ref]$Mask).Value = [System.Collections.Generic.List[Byte]]::new() } for ($i = 0; $i -lt ([math]::Max($Mask.Count,$Line.Length)); $i++) { if ($i -ge $Mask.Count) { ([ref]$Mask).Value.Add($Init) } $Mask[$i] = if ($i -lt $Line.Length -and $Line[$i] -match '\S') { $Mask[$i] -bor $Or } else { $Mask[$i] -band (0xFF -bxor [Mask]::All) } } } function Slice ([string]$String,[int]$Start,[int]$End = [int]::MaxValue) { if ($Start -lt 0) { $End += $Start; $Start = 0 } if ($End -ge 0 -and $Start -lt $String.Length) { if ($End -lt $String.Length) { $String.Substring($Start,$End - $Start + 1) } else { $String.Substring($Start) } } else { $Null } } function TypeName ([string]$TypeName) { if ($ParseRightAligned) { $Null = $TypeName.Trim() -match '(\[(.*)\])?\s*(.*)' $Matches[2] if ($Matches[3]) { $Matches[3] } else { $Matches[2] } } else { $Null,$TypeName.Trim() } } function ErrorRecord ($Line,$Start,$End,$Message) { $Exception = New-Object System.InvalidOperationException " $Message + $($Line -Replace '[\s]', ' ') + $(' ' * $Start)$('~' * ($End - $Start + 1)) " New-Object Management.Automation.ErrorRecord $Exception, $_.Exception.ErrorRecord.FullyQualifiedErrorId, $_.Exception.ErrorRecord.CategoryInfo.Category, $_.Exception.ErrorRecord.TargetObject } } process { $Lines = $InputObject -split '[\r\n]+' if ($Omit) { $Lines = @( foreach ($Line in $Lines) { foreach ($Char in [Char[]]$Omit) { $Line = $Line.Replace($Char,' ') } $Line } ) } $NextIndex,$DataIndex = $Null if (!$Columns) { for ($Index = 0; $Index -lt $Lines.Length; $Index++) { $Line = $Lines[$Index] if ($Line.Trim()) { if ($Null -ne $HeaderLine) { if ($Null -ne $Ruler) { if ($Line -notmatch $RulerPattern) { $DataIndex = $Index } } else { if ($Line -match $RulerPattern) { $Ruler = $Line } else { $Ruler = '' $DataIndex = $Index } } } else { if ($Null -ne $Ruler) { if ($LastLine -and (!$VRx -or $Ruler -notmatch $VRx -or $LastLine -match $VRx) -and $Line -notmatch $RulerPattern) { $HeaderLine = $LastLine $DataIndex = $Index } } else { if (!$RulerPattern) { $HeaderLine = $Line } elseif ($LastLine -and (!$VRx -or $Line -notmatch $VRx -or $LastLine -match $VRx) -and $Line -match $RulerPattern) { $HeaderLine = $LastLine if (!$Ruler) { $Ruler = $Line } } } } if ($Line -notmatch $RulerPattern) { if ($VRx -and $Line -match $VRx -and $TopLine -notmatch $VRx) { $TopLine = $Line; $NextIndex = $Null } elseif ($Null -eq $TopLine) { $TopLine = $Line } elseif ($Null -eq $NextIndex) { $NextIndex = $Index } $LastLine = $Line } if ($DataIndex) { break } } } if (($Auto -or ($VRx -and $TopLine -match $VRx)) -and $Null -ne $NextIndex) { if ($Null -eq $HeaderLine) { $HeaderLine = $TopLine if ($Null -eq $Ruler) { $Ruler = '' } $DataIndex = $NextIndex } elseif ($Null -eq $Ruler) { $Ruler = '' $DataIndex = $NextIndex } } if ($Null -ne $DataIndex) { $HeaderLine = $HeaderLine.TrimEnd() if ($TopLine -notmatch $VRx) { $VRx = '' if ($Ruler -notmatch $ANx) { $ANx = '' } } if ($VRx) { $Index = 0; $Start = 0; $Length = $Null; $Padding = [int]::MaxValue if ($Ruler) { $Start = $Ruler.Length - $Ruler.TrimStart().Length if ($Ruler.Length -gt $HeaderLine.Length) { $HeaderLine += ' ' * ($Ruler.Length - $HeaderLine.Length) } } $Mask = '?' * $Start foreach ($Column in ($HeaderLine.Substring($Start) -split $VRx)) { if ($Null -ne $Length) { $Mask += '?' * $Length + $VerticalDash } $Length = $Column.Length $Type,$Name = if (@($Header).Count -le 1) { TypeName $Column.Trim() } elseif ($Index -lt @($Header).Count) { TypeName $Header[$Index] } # if ($Name) { $End = $Start + $Length - 1 if ($Type -or $Name) { $Padding = [math]::Min($Padding,$Column.Length - $Column.TrimStart().Length) if ($Ruler -or $End -lt $HeaderLine.Length - 1) { $Padding = [math]::Min($Padding,$Column.Length - $Column.TrimEnd().Length) } $Property.Add($Name, $Null) } $Columns.Add(@{ Index = $Index; Name = $Column; Type = $Null; Start = $Start; End = $End }) # } $Index++; $Start += $Column.Length + 1 } $Mask += '*' foreach ($Column in $Columns) { if (-not $Column.Type -and -not $Column.Name) { continue } $Anchored = $Ruler -and $ANx -and $Ruler -match $ANx if (!$Ruler) { if ($Column.Start -eq 0) { $Column.Start = [math]::Max($HeaderLine.Length - $HeaderLine.TrimStart().Length - $Padding,0) $OuterLeftColumn = $Column } elseif ($Column.End -eq $HeaderLine.Length - 1) { $Column.End = $HeaderLine.TrimEnd().Length + $Padding $OuterRightColumn = $Column } } $Column.Type,$Column.Name = TypeName $Column.Name.Trim() if ($Anchored) { $Column.Alignment = [Alignment]::None if ($Ruler[$Column.Start] -match $ANx) { $Column.Alignment = $Column.Alignment -bor [Alignment]::Left } if ($Ruler[$Column.End] -match $ANx) { $Column.Alignment = $Column.Alignment -bor [Alignment]::Right } } else { $Column.Alignment = [Alignment]::Justified if ($HeaderLine[$Column.Start + $Padding] -notmatch '\S') { $Column.Alignment = $Column.Alignment -band -bnot [Alignment]::Left } if ($Column.End - $Padding -ge $HeaderLine.Length -or $HeaderLine[$Column.End - $Padding] -notmatch '\S') { $Column.Alignment = $Column.Alignment -band -bnot [Alignment]::Right } } } } else { Mask $HeaderLine ([Mask]::Header) if ($Ruler) { Mask $Ruler ([Mask]::Ruler) } $Lines | Select-Object -Skip $DataIndex | Where-Object { $_.Trim() } | ForEach-Object { Mask $_ } if (!$Ruler -and $HRx) { # Connect (ruler-less) single spaced headers where either column is empty $InWord = $False; $WordMask = 0 for ($i = 0; $i -le $Mask.Count; $i++) { if ($i -lt $Mask.Count) { $WordMask = $WordMask -bor $Mask[$i] } $Masked = $i -lt $Mask.Count -and $Mask[$i] if ($Masked -and !$InWord) { $InWord = $True; $Start = $i } elseif (!$Masked -and $InWord) { $InWord = $False; $End = $i - 1 if ([Mask]::Header -eq $WordMask -band 7) { # only header if ($Start -ge 2 -and $Mask[$Start - 2] -band [Mask]::Header) { $Mask[$Start - 1] = [Mask]::Header } elseif (($End + 2) -lt $Mask.Count -and $Mask[$End + 2] -band [Mask]::Header) { $Mask[$End + 1] = [Mask]::Header } } $WordMask = 0 } } } $InWord = $False; $Index = 0; $Start,$Left = $Null for ($i = 0; $i -le $Mask.Count; $i++) { $Masked = $i -lt $Mask.Count -and $Mask[$i] if ($Masked -and !$InWord) { $InWord = $True; $Start = $i; $WordMask = 0 } elseif ($InWord) { if ($i -lt $Mask.Count) {$WordMask = $WordMask -bor $Mask[$i]} if (!$Masked) { $InWord = $False; $End = $i - 1 if ($i -lt $Mask.Count) {$WordMask = $WordMask -bor $Mask[$i]} $Type,$Name = if (@($Header).Count -le 1) { TypeName "$(Slice -String $HeaderLine -Start $Start -End $End)".Trim() } elseif ($Index -lt @($Header).Count) { TypeName $Header[$Index] } if ($HeaderLine -and -not $Name) { continue } if ($Name -and $Columns.Where{ $_.Name -eq $Name }) { Write-Warning "Duplicate column name: $Name." } if ($Type) { $Type = try { [type]$Type } catch { Write-Error -ErrorRecord (ErrorRecord -Line $HeaderLine -Start $Start -End $End -Message ( "Unknown type {0} in header at column '{1}'" -f $Type,$Name )) } } $Column = @{ Index = $Index Name = $Name Type = $Type Start = $Start End = $End Alignment = $Null Left = $Left Right = $Null Mask = $WordMask } $Columns.Add($Column) if ($Left) { $Left.Right = $Column } $Left = $Column if ($Name) { $Property.Add($Name, $Null) } $Index++ } } } } $RulerPattern = if ($Ruler) { '^' + ($Ruler -replace "[^$HRx]","[$VRx$JNx$ANx\s]" -replace "[$HRx]","[$HRx]") } else { '\A(?!x)x' } } } if ($Columns) { if ($VRx) { foreach ($Line in ($Lines | Where-Object { $_ -like $Mask })) { if ($OuterLeftColumn) { $Start = [math]::Max($Line.Length - $Line.TrimStart().Length - $Padding,0) if ($Start -lt $OuterLeftColumn.Start) { $OuterLeftColumn.Start = $Start $OuterLeftColumn.Alignment = $Column.Alignment -band -bnot [Alignment]::Left } } elseif ($OuterRightColumn) { $End = $Line.TrimEnd().Length + $Padding if ($End -gt $OuterRightColumn.End) { $OuterRightColumn.End = $End $OuterRightColumn.Alignment = $Column.Alignment -band -bnot [Alignment]::Right } } } } else { $HeadMask = if ($Ruler) { [Mask]::Header -bor [Mask]::Ruler } else { [Mask]::Header } $Lines | Select-Object -Skip (0 + $DataIndex) | Where-Object { $_.Trim() } | ForEach-Object { Mask $_ } if (!$RowIndex) { for ($c = $Columns.Count - 1; $c -ge 0; $c --) { $Column = $Columns[$c] $MaskStart = $Mask[$Column.Start]; $MaskEnd = $Mask[$Column.End] $HeadStart = $MaskStart -band $HeadMask; $HeadEnd = $MaskEnd -band $HeadMask $AllStart = $MaskStart -band [Mask]::All; $AllEnd = $MaskEnd -band [Mask]::All $IsLeftAligned = ($HeadStart -eq $HeadMask -and $HeadEnd -ne $HeadMask) -or ($AllStart -and !$AllEnd) $IsRightAligned = ($HeadStart -ne $HeadMask -and $HeadEnd -eq $HeadMask) -or (!$AllStart -and $AllEnd) if ($IsLeftAligned) { $Column.Alignment = $Column.Alignment -bor [Alignment]::Left } if ($IsRightAligned) { $Column.Alignment = $Column.Alignment -bor [Alignment]::Right } } if ($DebugPreference -ne 'SilentlyContinue' -and !$RowIndex) { Write-Debug ($HeaderLine -replace '\s',' '); Debug-Column } } foreach ($Column in $Columns) { # Include any consecutive characters at te right $MaxEnd = if ($Column.Right) { $Column.Right.Start - 2 } else { $Mask.Count - 1 } for ($i = $Column.End + 1; $i -le $MaxEnd; $i++) { if ($Mask[$i]) { $Column.End = $i $Column.Alignment = $Column.Alignment -band -bnot [Alignment]::Right } else { break } } } foreach ($Column in $Columns) { # Include any consecutive characters at te left $MinStart = if ($Column.Left) { $Column.Left.End + 2 } else { 0 } for ($i = $Column.Start - 1; $i -ge $MinStart; $i --) { if ($Mask[$i]) { $Column.Start = $i $Column.Alignment = $Column.Alignment -band -bnot [Alignment]::Left } else { break } } } foreach ($Column in $Columns) { # Include any floating characters at the right if ($Column.Alignment -ne [Alignment]::Right) { # unless the column is right aligned $MaxEnd = if ($Column.Right) { $Column.Right.Start - 2 } else { $Mask.Count - 1 } for ($i = $Column.End + 1; $i -le $MaxEnd; $i++) { if ($Mask[$i]) { $Column.End = $i $Column.Alignment = $Column.Alignment -band -bnot [Alignment]::Right } } } } foreach ($Column in $Columns) { # Include any floating characters at the left if ($Column.Alignment -ne [Alignment]::Left) { # unless the column is left aligned $MinStart = if ($Column.Left) { $Column.Left.End + 2 } else { 0 } for ($i = $Column.Start - 1; $i -ge $MinStart; $i --) { if ($Mask[$i]) { $Column.Start = $i $Column.Alignment = $Column.Alignment -band -bnot [Alignment]::Left } } } } foreach ($Column in $Columns) { # Include any leftover floating characters at the right if ($Column.Alignment -ne [Alignment]::Right) { # where the column is right aligned $MaxEnd = if ($Column.Right) { $Column.Right.Start - 2 } else { $Mask.Count - 1 } for ($i = $Column.End + 1; $i -le $MaxEnd; $i++) { if ($Mask[$i]) { $Column.End = $i $Column.Alignment = $Column.Alignment -band -bnot [Alignment]::Right } } } } } if ($DebugPreference -ne 'SilentlyContinue' -and !$RowIndex) { Write-Debug ($HeaderLine -replace '\s',' '); Debug-Column } foreach ($Line in ($Lines | Select-Object -Skip ([int]$DataIndex))) { if ($Line.Trim() -and ($Line -notmatch $RulerPattern)) { $RowIndex++ if ($DebugPreference -ne 'SilentlyContinue') { Write-Debug ($Line -replace '\s',' ') } $Fields = if ($VRx -and $Line -notlike $Mask) { $Line -split $VRx } foreach ($Column in $Columns) { if (-not $Column.Type -and -not $Column.Name) { continue } $Property[$Column.Name] = if ($Fields) { $Fields[$Column.Index].Trim() } else { $Field = Slice -String $Line -Start $Column.Start -End $Column.End if ($Field -is [string]) { $Tail = $Field.TrimStart() $Value = $Tail.TrimEnd() if ($ParseRightAligned -and $Value -gt '') { $IsLeftAligned = $Field.Length - $Tail.Length -eq $Padding $IsRightAligned = $Tail.Length - $Value.Length -eq $Padding $Alignment = if ($IsLeftAligned -ne $IsRightAligned) { if ($IsLeftAligned) { [Alignment]::Left } else { [Alignment]::Right } } else { $Column.Alignment } if ($Alignment -eq [Alignment]::Right) { try { & ([scriptblock]::Create($Value)) } catch { $Value Write-Error -ErrorRecord (ErrorRecord -Line $Line -Start $Column.Start -End $Column.End -Message ( "The expression '{0}' in row {1} at column '{2}' can't be parsed." -f $Value,$RowIndex,$Column.Name )) } } elseif ($Column.Type) { try { & ([scriptblock]::Create("[$($Column.Type)]`$Value")) } catch { $Value Write-Error -ErrorRecord (ErrorRecord -Line $Line -Start $Column.Start -End $Column.End -Message ( "The value '{0}' in row {1} at column '{2}' can't be converted to type {1}." -f $Value,$RowIndex,$Column.Name,$Column.Type )) } } else { $Value } } else { $Value } } else { '' } } } [PSCustomObject]$Property } } if ($DebugPreference -ne 'SilentlyContinue' -and $RowIndex) { Debug-Column } } } |