Use 1-based row/column in error messages

playground/package-lock.json

@@ -10,7 +10,6 @@
       "dependencies": {
         "@preact/signals": "^1.3.0",
         "codemirror": "^6.0.1",
-        "monaco-editor": "^0.52.0",
         "preact": "^10.24.3"
       },
       "devDependencies": {
@@ -990,12 +989,6 @@
         "node": "^8.16.0 || ^10.6.0 || >=11.0.0"
       }
     },
-    "node_modules/monaco-editor": {
-      "version": "0.52.2",
-      "resolved": "https://registry.npmjs.org/monaco-editor/-/monaco-editor-0.52.2.tgz",
-      "integrity": "sha512-GEQWEZmfkOGLdd3XK8ryrfWz3AIP8YymVXiPHEdewrUq7mh0qrKrfHLNCXcbB6sTnMLnOZ3ztSiKcciFUkIJwQ==",
-      "license": "MIT"
-    },
     "node_modules/nanoid": {
       "version": "3.3.11",
       "resolved": "https://registry.npmjs.org/nanoid/-/nanoid-3.3.11.tgz",

playground/src/main.ts

@@ -444,8 +444,8 @@ const processOutput = (
     );
     if (match) {
       let [_full, kind, file, line, col, message] = match;
-      let lineNumber = +line + 1;
-      let column = +col + 1;
+      let lineNumber = +line;
+      let column = +col;
       // FIXME - pass the real path in
       if (fn && fn !== file) {
         lineNumber = column = 0;