Regular Expressions

Question

Hello All,

I am new to C# kindly help me with the Expected output:

What i have Done...

string strCombination = "((B48B20, XB1141) + PLUGIN_HYBRID + ECE), (B57D30 + TL + ECE), (B58B30 + ML + KEIN_HYBRID + ECE), (B57D30 + SL + US)";

string strCombination_Pattern = @"$(.*?)$";
Regex rgx1 = new Regex(strCombination_Pattern, RegexOptions.IgnoreCase);
MatchCollection matches1 = rgx1.Matches(strCombination);
if (matches1.Count > 0)
{
foreach (Match match in matches1)
{

Console.WriteLine(match.Value);
}

}

Output:

match.Value = (B48B20, XB1141) ,(B57D30 + TL + ECE),(B58B30 + ML + KEIN_HYBRID + ECE),(B57D30 + SL + US)

Expected output:

(B48B20, XB1141)+ PLUGIN_HYBRID + ECE ,(B57D30 + TL + ECE),(B58B30 + ML + KEIN_HYBRID + ECE),(B57D30 + SL + US)

Thank u

Sampath

Vulpes · Answer

This should do it: string s = "DBC-Schwelle A 00 Bedingung_G011: false"; string[] items = Regex.Split(s, @"\s{2,}"); items[2] = Regex.Split(items[2], ": ")[1]; Console.WriteLine(items[0]); Console.WriteLine(items[1]); Console.WriteLine(items[2]); Console.WriteLine(); Console.WriteLine("or"); Console.WriteLine(); Console.WriteLine(items[1]); Console.WriteLine(items[2]); The output is: DBC-Schwelle A 00 false or 00 false

Vulpes · Answer

Try this code: string str14 = "((B48B20, XB1141) + PLUGIN_HYBRID + ECE))))))))"; string str15 = "((((((((((((((B48B20, XB1141) + PLUGIN_HYBRID + ECE)"; string regExp = @"$$[^(]*?$.*?$"; str14 = Regex.Match(str14, regExp).Value; str15 = Regex.Match(str15, regExp).Value; Console.WriteLine(str14); Console.WriteLine(str15); However, the regular expression is only designed to remove excess leading or trailing parentheses from an expression of the form: ((a)b) It won't work generally and it's probably impossible to come up with a single regular expression which will. It's really a job for a parser.

sampath meka · Answer

Hello Vulpes, Plz Help me i need a regular expression which matches the exact braces and removes unnecessary. string str14 = "((B48B20, XB1141) + PLUGIN_HYBRID + ECE))))))))" ; String str15= "((((((((((((((B48B20, XB1141) + PLUGIN_HYBRID + ECE)" ; Expected output is : str14 = ((B48B20, XB1141) + PLUGIN_HYBRID + ECE) str15 = ((B48B20, XB1141) + PLUGIN_HYBRID + ECE) Plz help me Thank u

Vulpes · Answer

It's probably the same as the one you've already got but the following expression will exclude underscore: "(?:[^a-z0-9 _ ]|(?

sampath meka · Answer

I got the EXpression for Exclude the underscore. Thanks u

sampath meka · Answer

Hello Thanks for u reply ... i have one doubt that is i am using one expression for remove of all special characters,but i want to exclude _(underscore)from the string. Regex r = new Regex("(?:[^a-z0-9 ]|(? return r.Replace(input, String.Empty); For Example: string str_Remove = "((PLUGIN_HYBRID))"; Regex r = new Regex("(?:[^a-z0-9 ]|(? return r.Replace(str_Remove , String.Empty); Expected Output: PLUGIN_HYBRID My output using the above expression is PLUGINHYBRID Using the above expression how can i exclude _(underscore)from the string. Thanks for helping me a lot.....

Vulpes · Answer

Incidentally, there is one way whereby you could use the same regular expression for strCombination2 - namely, to pre-process it first: string strCombination2 = "~alle_Anderen~ !((BENZIN, BATTERIE_BENZIN), (DIESEL))"; string strCombination4 = Regex.Split(strCombination2, @"\(\(")[1].Replace("(", "").Replace(")", ""); foreach(string s in Regex.Split(strCombination4, r)) { Console.WriteLine(s); } The output is: BENZIN BATTERIE_BENZIN DIESEL

Vulpes · Answer

It's not difficult to come up with a single regular expression which can split either strCombination or strCombination1: string strCombination = "((B48B20, XB1141) + PLUGIN_HYBRID + ECE), (B57D30 + TL + ECE), (B58B30 + ML + KEIN_HYBRID + ECE), (B57D30 + SL + US)"; string strCombination1 = "5AT_DRIVING_ASSISTANT_PLUS, 5AU_DRIVING_ASSISTANT_PREMIUM_ARBEITSNAME, 5DP_PARKASSISTENT, 5DV_PARKASSISTENT_PLUS_ARBEITSNAME"; string r = @"(?((?=.*\)))(? foreach(string s in Regex.Split(strCombination, r)) { Console.WriteLine(s); } Console.WriteLine(); foreach(string s in Regex.Split(strCombination1, r)) { Console.WriteLine(s); } The output is: ((B48B20, XB1141) + PLUGIN_HYBRID + ECE) (B57D30 + TL + ECE) (B58B30 + ML + KEIN_HYBRID + ECE) (B57D30 + SL + US) 5AT_DRIVING_ASSISTANT_PLUS 5AU_DRIVING_ASSISTANT_PREMIUM_ARBEITSNAME 5DP_PARKASSISTENT 5DV_PARKASSISTENT_PLUS_ARBEITSNAME However, it's impossible to extend this to deal with strCombination2 as well because: 1. Unlike the other two expressions, the split you want removes characters other than the separators from the original expression. Regex.Split never does this. 2. The split you want is based on commas within brackets whereas the first expression deliberately ignored commas embedded in brackets i.e. the sub-expression ((B48B20, XB1141) wasn't split.

sampath meka · Answer

Hello, Thanks for u reply,i have two more string as follows... string strcombination1 = "5AT_DRIVING_ASSISTANT_PLUS, 5AU_DRIVING_ASSISTANT_PREMIUM_ARBEITSNAME, 5DP_PARKASSISTENT, 5DV_PARKASSISTENT_PLUS_ARBEITSNAME"; Expected output: 5AT_DRIVING_ASSISTANT_PLUS 5AU_DRIVING_ASSISTANT_PREMIUM_ARBEITSNAME 5DP_PARKASSISTENT 5DV_PARKASSISTENT_PLUS_ARBEITSNAME string strcombination2 = "~alle_Anderen~ !((BENZIN, BATTERIE_BENZIN), (DIESEL))"; Expected output: BENZIN BATTERIE_BENZIN DIESEL previously u have reply me for question string strcombination ="((B48B20, XB1141) + PLUGIN_HYBRID + ECE), (B57D30 + TL + ECE), (B58B30 + ML + KEIN_HYBRID + ECE), (B57D30 + SL + US)"; Answer is : //Working for strcombination foreach (string s in Regex.Split(strCombination, @"(? { Console.WriteLine(s); } //working for strcombination but i need the expression which should work for all strcombination,strcombination1 and strcombination2,kindly help me i will be very much thankful to u ...

sampath meka · Answer

Thank u Very much, one more doubt plz In a text file i have this way DBC-Schwelle A 00 Bedingung_G011: false i need to get output as : DBC-Schwelle A 00 false or 00 false I am working on this ,as i said i am new to C# it takes time looking forward for u help.... Thanks

Vulpes · Answer

Sure, try this: string str1 = "((B48B20, XB1141) + PLUGIN_HYBRID + ECE)"; string regExp = @"^$$(\w+), (\w+)$ (.*)$$"; Match m = Regex.Match(str1, regExp); Console.WriteLine(m.Groups[1]); Console.WriteLine(m.Groups[3]); Console.WriteLine(); Console.WriteLine(m.Groups[2]); Console.WriteLine(m.Groups[3]); The output is: B48B20 + PLUGIN_HYBRID + ECE XB1141 + PLUGIN_HYBRID + ECE

sampath meka · Answer

Thanks for u r reply one more question i am posting string str1 = ((B48B20, XB1141) + PLUGIN_HYBRID + ECE) Expected output: B48B20 + PLUGIN_HYBRID + ECE XB1141 + PLUGIN_HYBRID + ECE Kindly help me how to acheive this

Vulpes · Answer

Try this instead: string strCombination = "((B48B20, XB1141) + PLUGIN_HYBRID + ECE), (B57D30 + TL + ECE), (B58B30 + ML + KEIN_HYBRID + ECE), (B57D30 + SL + US)"; foreach(string s in Regex.Split(strCombination, @"(? { Console.WriteLine(s); } The output is: ((B48B20, XB1141) + PLUGIN_HYBRID + ECE) (B57D30 + TL + ECE) (B58B30 + ML + KEIN_HYBRID + ECE) (B57D30 + SL + US)