David David - 4 months ago 46
PowerShell Question

How to split a string by comma ignoring comma in double quotes

This question has been asked before but I have been trying to work a solution in powershell but am not getting the desired results.

$line = '1,2,"N",09/04/13,"P09042013ZSD(1,0)","ZSD"'
[string[]] $splitColumns = $line.Split('(,)(?=(?:[^"]|"[^"]*")*$)', [StringSplitOptions]'RemoveEmptyEntries')


When I loop though the split values I am expecting

1
2
"N"
09/04/13
"P09042013ZSD(1,0)"
"ZSD"


But am getting

1
2
N
09/04/13
P09042013ZSD
1
0
ZSD


I have tested the regex using http://regexhero.net/tester/ (Split) with ExplicitCapture set and it returns the desired results.

Working solution

$RegexOptions = [System.Text.RegularExpressions.RegexOptions]
$csvSplit = '(,)(?=(?:[^"]|"[^"]*")*$)'

$splitColumns = [regex]::Split("StringHere", $csvSplit, $RegexOptions::ExplicitCapture)

CB. CB.
Answer

[string].split() method doesn't accept regex on split but just [char[]] or [string[]].

You can try like this:

 $line -split ',(?=(?:[^"]|"[^"]*")*$)' 

powershell -split accept regex for splitting text

Using .net you can do it like this:

[regex]::Split( $line , ',(?=(?:[^"]|"[^"]*")*$)' )