Initial project import

tools/v/.github/problem-matchers/v.json

@@ -0,0 +1,18 @@
+{
+    "__comment": "Based on https://github.com/python/cpython/blob/main/.github/problem-matchers/gcc.json",
+    "problemMatcher": [
+        {
+            "owner": "v-problem-matcher",
+            "pattern": [
+                {
+                    "regexp": "^(.*):(\\d+):(\\d+):\\s+(?:fatal\\s+)?(error):\\s+(.*)$",
+                    "file": 1,
+                    "line": 2,
+                    "column": 3,
+                    "severity": 4,
+                    "message": 5
+                }
+            ]
+        }
+    ]
+}