CODEWITHSUNDEEP
c#regex
S C
S C

Reputation: 49

How do I split on spaces, keeping spaces in quotes and not lose my equals

I am no good with RegEx so not real familiar with what is going on in this code I borrowed. I want to split the following String:

CHARM CARD_SLOT=1 IO_SUBSYSTEM="CHARMS" CONTROLLER="CIOC-CB3-IO" DEFINITION="CHMIO_DO_24_VDC_HIGH-SIDE_CHARM"

So that is in individual strings like: (What I want to return)

 CHARM CARD_SLOT=1
 IO_SUBSYSTEM="CHARMS"
 CONTROLLER="CIOC-CB3-IO"
 DEFINITION="CHMIO_DO_24_VDC_HIGH-SIDE_CHARM"

I am using this code:

while (null != (workString = s.ReadLine()))
{                                        
  RegexOptions options = RegexOptions.None;
  Regex regex = new Regex(@"((""((?<token>.*?)(?<!\\)"")|(?<token>[\w]+))(\s)*)", options);                                        
  var result = (from Match m in regex.Matches(workString)
  where m.Groups["token"].Success
  select m.Groups["token"].Value).ToList();
  foreach (string o in result)
    {
       if (!o.Contains("{") || !o.Contains("}"))
         {
           endResult = endResult + "\r\n" + o;
           Console.WriteLine("'{0}'", "\r\n" + o);
         }
    }                                        
 }

What I am currently returning

CHARM
CARD_SLOT
1
IO_SUBSYSTEM
CHARMS
CONTROLLER
CIOC-CB3-IO
DEFINITION
CHMIO_DO_24_VDC_HIGH-SIDE_CHARM

Upvotes: 1

Views: 65

Answers (2)

Tommy
Tommy

Reputation: 108

this pattern should work:

  pattern = @"[^=]+=[^=]+(\s|.$)"; //matches with spaces
  pattern = @"[^=\s]+=[^=]+(?=(\s|.$))"; //matches without spaces

my idea is to take = and "look around" on both sides (especially right side). In both pattern I look whether it ends with " " or it is very end of string. And finally I remove matched spaces by using lookahead feature as we don't need them.

Upvotes: 0

NetMage
NetMage

Reputation: 26917

This matches your example:

var pattern = @"(\w[\w ]+=(?:""[^""]+""|[^ ]+))+";

var optionsList = Regex.Matches(src, pattern).Cast<Match>().Select(m => m.Value).ToList();

Upvotes: 1

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