Parsing custom arguments in Powershell "-" delimitted

Question

I have a string

-car:"Nissan" -Model:"Dina" -Color:"Light-blue" -wheels:"4"

How can I extract the arguments? Initial thoughts was to use the '-' as the delimiter, however that's not going to work.

How is it related to PowerShell?

stej
– stej

2010-12-08 06:00:01 +00:00
Commented Dec 8, 2010 at 6:00 — stej
– stej, Commented Dec 8, 2010 at 6:00

Roman Kuzmin · Accepted Answer · 2010-12-09 01:35:51Z

1

Use of a regular expression is probably the easiest solution of the task. This can be done in PowerShell:

$text = @'
-car:"Nissan" -Model:"Dina" -Color:"Light-blue" -wheels:"4" -windowSize.Front:"24"
'@

# assume parameter values do not contain ", otherwise this pattern should be changed
$pattern = '-([\.\w]+):"([^"]+)"'

foreach($match in [System.Text.RegularExpressions.Regex]::Matches($text, $pattern)) {
 $param = $match.Groups[1].Value
 $value = $match.Groups[2].Value
 "$param is $value"
}

Output:

car is Nissan
Model is Dina
Color is Light-blue
wheels is 4
windowSize.Front is 24

edited Dec 9, 2010 at 1:35

answered Dec 8, 2010 at 7:40

Roman Kuzmin

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2 Comments

Henno Over a year ago

Thank you that worked. There's an additional requirement though.. If the arguments look like the following: -car:"Nissan" -Model:"Dina" -Color:"Light-blue" -wheels:"4" -windowSize.Front:"24" -windowSize.Back:"26" How can the regex be changed to cater for these

Roman Kuzmin Over a year ago

@Henno, I have updated the answer so that it includes the new case.

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