About Regular Expression Groups

The following is working OK but relies (as in one of your previous threads) on the comma separated list always being preceded by a space and a left bracket and for that combination to not occur earlier in the text:

using System;

using System.Text.RegularExpressions;

class Test

{

static void Main()

{

string str = "(!(2VH_AKTIVLENKUNG_UND_HSR) + !(ALLRAD) + (B47D20 + G011, B47D20 + G012, B48B20 + G011))";

string regExp = @"^$*(.*?)\s\((\w+\s*\+\s*\w+(,\s*\w+\s*\+\s*\w+)*)$*$";

Match m = Regex.Match(str, regExp);

string[] split = Regex.Split(m.Groups[2].Value, @",\s*");

string[] output = new string[split.Length];

for(int j = 0; j < split.Length; j++)

{

output[j] = String.Format("{0} {1}", m.Groups[1], split[j]);

Console.WriteLine(output[j]);

}

Console.ReadKey();

}

}

The output is:

!(2VH_AKTIVLENKUNG_UND_HSR) + !(ALLRAD) + B47D20 + G011

!(2VH_AKTIVLENKUNG_UND_HSR) + !(ALLRAD) + B47D20 + G012

!(2VH_AKTIVLENKUNG_UND_HSR) + !(ALLRAD) + B48B20 + G011

1 Reply

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Vulpes12y ago
Accepted answer
The following is working OK but relies (as in one of your previous threads) on the comma separated list always being preceded by a space and a left bracket and for that combination to not occur earlier in the text:

using System;
using System.Text.RegularExpressions;

class Test
{
static void Main()
{
string str = "(!(2VH_AKTIVLENKUNG_UND_HSR) + !(ALLRAD) + (B47D20 + G011, B47D20 + G012, B48B20 + G011))";

string regExp = @"^$*(.*?)\s\((\w+\s*\+\s*\w+(,\s*\w+\s*\+\s*\w+)*)$*$";
Match m = Regex.Match(str, regExp);
string[] split = Regex.Split(m.Groups[2].Value, @",\s*");
string[] output = new string[split.Length];

for(int j = 0; j < split.Length; j++)
{
output[j] = String.Format("{0} {1}", m.Groups[1], split[j]);
Console.WriteLine(output[j]);
}

Console.ReadKey();
}
}

The output is:

!(2VH_AKTIVLENKUNG_UND_HSR) + !(ALLRAD) + B47D20 + G011
!(2VH_AKTIVLENKUNG_UND_HSR) + !(ALLRAD) + B47D20 + G012
!(2VH_AKTIVLENKUNG_UND_HSR) + !(ALLRAD) + B48B20 + G011