c# split string with " exception [duplicate]

Question

I want to split a string into parts, to retrieve arguments.

I already made that function:

static private string getparam(string input, int index)
    {
        string[] arrparams = input.Split(' ');

        if (arrparams.Length <= index) return "";

        return arrparams[index];
    }

But when i pass an argument like:

upload C:\Visual Studio

it will see "C:\Visual" as the first argument and "Studio" as the second and split em.

Now i thought about making something like an exception in the Split-Function: When the argument is given between quotes, it should ignore the spaces in it.

Then, when i pass the arg like this: upload "C:\Visual Studio", the first argument should be C:\Visual Studio

So how could i implement this?

Thank you.

stackoverflow.com/questions/491595/…

Daniel A. White
– Daniel A. White

2014-07-01 13:10:53 +00:00
Commented Jul 1, 2014 at 13:10 — Daniel A. White
– Daniel A. White, Commented Jul 1, 2014 at 13:10
Are you trying to parse parameters passed to a console app?

D Stanley
– D Stanley

2014-07-01 13:11:49 +00:00
Commented Jul 1, 2014 at 13:11 — D Stanley
– D Stanley, Commented Jul 1, 2014 at 13:11

Marc Gravell · Accepted Answer · 2014-07-01 13:10:46Z

10

The reason for the current behaviour is because you are splitting on space, so it shouldn't be a shock to find that it splits on space.

But the simpler fix is: don't do this. Let the runtime worry about it:

static void Main(string[] args) { ... }

and job done; all ready-parsed into separate tokens obeying the expected rules.

answered Jul 1, 2014 at 13:10

Marc Gravell

1.1m273 gold badges2.6k silver badges3k bronze badges

Sign up to request clarification or add additional context in comments.

2 Comments

Nisd Over a year ago

Alternatively you can use ``` Environment.GetCommandLineArgs() ```

Meldin A. Over a year ago

I want to give commands from an online website. And my app is no command line app.

L.B · Accepted Answer · 2014-07-01 14:30:00Z

4

"I want to give commands from an online website. And my app is no command line app"

You can use Regex.

string[] arrparams = Regex.Matches(input, @"\""(?<token>.+?)\""|(?<token>[^\s]+)")
                    .Cast<Match>()
                    .Select(m => m.Groups["token"].Value)
                    .ToArray();

edited Jul 1, 2014 at 14:30

answered Jul 1, 2014 at 14:23

L.B

116k20 gold badges189 silver badges229 bronze badges

1 Comment

Meldin A. Over a year ago

Wow! This one works. Thank you mate!

Arun Thundyill Saseendran · Accepted Answer · 2014-07-01 13:38:01Z

-1

You can do this with a regex.split method.

You code should be modified as

using System;
using System.Text.RegularExpressions;
static private string getparam(string input, int index)
{
   <b>string pattern = @"[^\\s\"']+|\"([^\"]*)\"";
   string[] arrparams = Regex.Split(input,pattern);</b>
   if (arrparams.Length <= index) return "";
   return arrparams[index];
}

This bold code with match and split a space and when it is double quotes it will take as such. Post back if you find any issues.

Thanks Arun

answered Jul 1, 2014 at 13:38

Arun Thundyill Saseendran

96212 silver badges20 bronze badges

1 Comment

L.B Over a year ago

@"[^\\s\"']+|\"([^\"]*)\""; is not a compilable string.. if you mean "[^\\s\"']+|\"([^\"]*)\"" it doesn't do the work...

Collectives™ on Stack Overflow

c# split string with " exception [duplicate]

3 Answers 3

2 Comments

1 Comment

1 Comment

Linked

Hot Network Questions

Collectives™ on Stack Overflow

3 Answers 3

2 Comments

1 Comment

1 Comment

Linked

Related