Reputation: 3
I have been stuck in a situation .
Here are few input strings -
"abacuses\r\n25"
"alphabet\r\n56,\r\n57"
"animals\r\n44,\r\n45,\r\n47"
I need the output to be splited like -
"abacuses\r\n25" to be splitted into A)abacuses B)25
"alphabet\r\n56,\r\n57" to be splitted into A)alphabet B)56,57
"animals\r\n44,\r\n45,\r\n47" to be splitted into A)animals B)44,45,47
So far I have tried this but it doesn't work-
string[] ina = Regex.Split(indexname, @"\r\n\D+");
string[] ina = Regex.Split(indexname, @"\r\n\");
Please Help
Upvotes: 0
Views: 146
Reputation: 627607
If you need to split a string at the first \r\n
, you may use a String.Split
with a count argument:
var line = "animals\r\n44,\r\n45,\r\n47";
var res = line
.Split(new[] {"\r\n"}, 2, StringSplitOptions.RemoveEmptyEntries);
// Demo output
Console.WriteLine(res[0]);
if (res.GetLength(0) > 1)
Console.WriteLine(res[1].Replace("\r\n", "")); // In the second value, linebreaks should be removed
See the C# demo
The 2
in .Split(new[] {"\r\n"}, 2, StringSplitOptions.RemoveEmptyEntries)
means that the whole string should be split into 2 parts only and since the string is processed from left to right, the split will occur on the first "\r\n" substring found.
Upvotes: 1
Reputation: 7546
No regex needed in your example. You basicaly parse string:
string input = "animals\r\n44,\r\n45,\r\n47";
var split = input.Split(new char[]{'\r','\n',','}, StringSplitOptions.RemoveEmptyEntries);
var name = split[0]; //animals
var args = string.Join(",", split.Skip(1)); //44,45,37
Many people use it for parsing, but Regex is not a parsing language! It is pattern matcher! It is used to find substrings in string! If you can just Split your string - just do it, really. It is much easier to understand than Regex expression.
Upvotes: 1