tasks.json from Haxe with OCaml problem matcher

tasks.json

{
    "version": "0.1.0",
    "command": "make",
    "isShellCommand": true,
    "args": ["ADD_REVISION=1", "-f", "Makefile.win", "haxe"],
    "showOutput": "always",
    "problemMatcher": {
        "fileLocation": "relative",
        "owner": "ocaml",
        "pattern": [
            {
                "regexp": "^File \"(.*)\", line (\\d+), characters (\\d+)-(\\d+):$",
                "file": 1,
                "line": 2,
                "column": 3,
                "endColumn": 4
            },
            {
                "regexp": "^(?:(Error|Warning)(?: \\d+)?): (.*)$",
                "severity": 1,
                "message": 2
            }
        ]
    }
}