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  1. import java.util.HashMap;
  2. import java.util.regex.Matcher;
  3. import java.util.regex.Pattern;
  4. class RegexTest {
  5.  
  6.         public static void main(String[] args){
  7.            String msg = "id1:[label1:label2]:id2:[label1:label2:label3]:id3:[label1:label2:label3:label4]";
  8.            Pattern pattern = Pattern.compile("id");
  9.             HashMap<String,String> kv = new HashMap<String,String>();
  10.             Matcher m = pattern.matcher(msg);
  11.  
  12.             int prev = -1;
  13.             int next = -1;
  14.             int start = -1;
  15.             int end = -1;
  16.  
  17.             String subMsg = "";
  18.             while (m.find()){
  19.                 if(prev == -1){
  20.                     prev = m.end();
  21.                 }
  22.                 else
  23.                 {
  24.                     next = m.end();
  25.                     start = prev;
  26.                     end =   next;
  27.                     subMsg = msg.substring(start,end);
  28.                     kv.put(String.valueOf(subMsg.charAt(0)),subMsg.substring(subMsg.indexOf("["),subMsg.lastIndexOf("]")+1));
  29.                     prev = next;
  30.                 }
  31.             }
  32.             subMsg = msg.substring(next);
  33.             kv.put(String.valueOf(subMsg.charAt(0)),subMsg.substring(subMsg.indexOf("["),subMsg.lastIndexOf("]")+1));
  34.  
  35.             System.out.println(kv);
  36.         }
  37. }
  38.  
Success #stdin #stdout 0.07s 380224KB
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Standard input is empty
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{3=[label1:label2:label3:label4], 2=[label1:label2:label3], 1=[label1:label2]}
https://ideone.com/HM7989
language:
Java (HotSpot 12)
created:
10 years ago
visibility:
public

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