Difficulty with Regex

Question

I have the following content in a string:

|1300|11349|03042016|10857,000|0,000|10857,000|444,470|10412,530|25,530|0,000|10387,000| |1310|8|4657,000|0,000|4657,000|444,470|4212,530|5,530|0,000|4207,000| |1320|25||||||281647,640|281203,170|0,000|444,470| |1320|26|||||||308202,420|308202,420|0,000|0,000| |1310|11|6200,000|0,000|6200,000|0,000|6200,000|20,000|0,000|6180,000| |1320|28||||||439837,300|439837,300|0,000|0,000| |1300|11518|03042016|8057,000|0,000|8057,000|560,519|7496,481|0,000|25,519|7522,000| |1310|7|8057,000|0,000|8057,000|560,519|7496,481|0,000|25,519|7522,000| |1320|13|||||||420207,150|420146,581|0,000|60,569| |1320|14||||||457108,130|456806,946|0,000|301,184| |1320|21||||||460614,020|460518,267|0,000|95,753| |1320|22||||||544902,750|544799,677|0,000|103,073|

I’d like to break that string into one array for the blocks that start with |1300|

I’d take a vector of two positions, thus forming each position of the vector for example:

Position 1:

|1300|11349|03042016|10857,000|0,000|10857,000|444,470|10412,530|25,530|0,000|10387,000| |1310|8|4657,000|0,000|4657,000|444,470|4212,530|5,530|0,000|4207,000| |1320|25||||||281647,640|281203,170|0,000|444,470| |1320|26|||||||308202,420|308202,420|0,000|0,000| |1310|11|6200,000|0,000|6200,000|0,000|6200,000|20,000|0,000|6180,000| |1320|28||||||439837,300|439837,300|0,000|0,000|

Position 2

|1300|11518|03042016|8057,000|0,000|8057,000|560,519|7496,481|0,000|25,519|7522,000| |1310|7|8057,000|0,000|8057,000|560,519|7496,481|0,000|25,519|7522,000| |1320|13|||||||420207,150|420146,581|0,000|60,569| |1320|14||||||457108,130|456806,946|0,000|301,184| |1320|21||||||460614,020|460518,267|0,000|95,753| |1320|22||||||544902,750|544799,677|0,000|103,073|

I tried the code below but it didn’t work

string[] arr1300 = Regex.Split(conteudo, @"(\|1300\|)");

Answer 1

I believe that a Split normal solves your problem:

string stringSplit = "|1300|";
string[] arr1300 = conteudo.Split(new string[] { stringSplit }, StringSplitOptions.RemoveEmptyEntries);

After the Split just concatenate the "|1300|" so that the positions stay the same you want:

string posicao1 = stringSplit + arr1300[0];
string posicao2 = stringSplit + arr1300[1];

If you have more than two positions you can concatenate the "|1300|" in all positions at once:

arr1300 = arr1300.Select(x => stringSplit + x).ToArray();