Private/ConvertTo-GraphVizAttribute.ps1
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function ConvertTo-GraphVizAttribute { <# .Description Converts a hashtable to a key value pair format that the DOT specification uses for nodes, edges and graphs .Example ConvertTo-GraphVizAttribute @{label='myName'} [label="myName";] For edge and nodes, it like this [key1="value";key2="value"] .Example ConvertTo-GraphVizAttribute @{label='myName';color='Red'} -UseGraphStyle label="myName"; color="Red"; For graphs, it needs to be indented and multiline key1="value"; key2="value"; .Example ConvertTo-GraphVizAttribute @{label={$_.name}} -InputObject @{name='myName'} [label="myName";] Script blocks are supported in the hashtable for some commands. InputObject is the $_ value in the scriptblock .Notes For edge and nodes, it like this [key1="value";key2="value"] For graphs, it needs to be indented and multiline key1="value"; key2="value"; Script blocks are supported in the hashtable for some commands. InputObject is the $_ value in the scriptblock #> param( [hashtable] $Attributes, [switch] $UseGraphStyle, # used for whe the attributes have scriptblocks embeded [object] $InputObject ) if($Attributes -ne $null -and $Attributes.Keys.Count -gt 0) { $values = $Attributes.GetEnumerator() | ForEach-Object {'{0}="{1}";'-f $_.name, $_.value} $values = foreach($key in $Attributes.GetEnumerator()) { if($key.value -is [scriptblock]) { Write-Debug "Executing Script on Key $($key.name)" '{0}="{1}";'-f $key.name, ([string](@($InputObject).ForEach($key.value))) } else { '{0}="{1}";'-f $key.name, $key.value } } if($UseGraphStyle) { # Graph style is each line on its own and no brackets $indent = Get-Indent $values | ForEach-Object{"$indent$_"} } else { "[{0}]" -f ($values -join '') } } } |