1{
 2    "problemMatcher": [
 3        {
 4            "owner": "check_for_tabs",
 5            "pattern": [
 6                {
 7                    "regexp": "^([^:]+):(\\d+):(.*)$",
 8                    "file": 1,
 9                    "line": 2,
10                    "message": 3
11                }
12            ]
13        }
14    ]
15}