Parts/ReplaceUrlVariable.ps1
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<#
.Synopsis Replaces URL segments and query strings with variables .Description Replaces URL segments and query strings which contain variable names in brackets or curly braces with a PowerShell variable value. If no variable exists or it has a non-truthy value, then the segment will be omitted. .Notes This is used as a delegate to [Regex]::Replace. The match should contain the following groups: * Variable (the name of the variable) * Start ( the starting character of the match) * Query ( if matching a query string, this is the name of the variable) #> param([Parameter(Mandatory)][Text.RegularExpressions.Match]$match) $var = $ExecutionContext.SessionState.PSVariable.Get($match.Groups['Variable'].ToString()) # Find the matching variable if ($null -ne $var.Value) { # If it has a value, we're returning it. if ('?','&' -contains $match.Groups["Start"].Value) { # If the match was a query string segment, return $match.Groups['Start'].Value + # return <Start> + $match.Groups['Query'].Value + # <Query> '=' + # an = $var.Value.ToString() # and then the value. } else { # Otherwise, return '/' + ($var.Value.ToString()) # return a leading slash and the value } } else # If there was no match { if ($match.Groups['Start'].Value -ne '?') { # If we're the start of the query string, return '?' # keep the ? (there could be fixed query string values) } else { # otherwise, return '' # return a blank string. } } |