与我的REGEX匹配时出错

Question

May i have some help to get those string with Regex .. Here is my source code ..

help me !!!

String t="01-21 10:56:41.161 D/RILJ    ( 2785): [rild] [2058]< VOICE_REGISTRATION_STATE {1, 271c, 0000058d, 16, null, null, null, null, null, null, null, null, null, null, null}";
String Exp= "(VOICE_REGISTRATION_STATE) .(\\d+), (\\w+), (\\w+), (\\d+),";
Pattern p = Pattern.compile("\\b"+Exp+"\\b", Pattern.CASE_INSENSITIVE);

Matcher m = p.matcher(t);

// indicate all matches on the line

    if (m.find()) {

  Toast.makeText(getBaseContext(),"band="+m.group(2),Toast.LENGTH_SHORT).show();
  Toast.makeText(getBaseContext(),"Lac="+m.group(3),Toast.LENGTH_SHORT).show();
  Toast.makeText(getBaseContext(),"CID="+m.group(4),Toast.LENGTH_SHORT).show();
  Toast.makeText(getBaseContext(),"Tech="+m.group(5),Toast.LENGTH_SHORT).show();
    }

Answer 1

The problem is only with the word boundary you added at the last. Just remove it. Because there isn't a word boundary exists between a comma ( which exists next to the number 16 ) and a space. \\b matches between a word character and a non-word character.

Pattern p = Pattern.compile("\\b" + Exp, Pattern.CASE_INSENSITIVE);

Just play with adding a word boundary at the last in here.