A reliable test for the extra code needed in analyzer, passing shellcheck

web/scripts/patch-analyser.sh

@@ -0,0 +1,23 @@
+#!/usr/bin/env bash
+
+TARGET="./node_modules/@custom-elements-manifest/analyzer/src/features/analyse-phase/creators/handlers.js"
+
+# If the second question mark is not there in this test, put it there. The flags to grep ensure it
+# will behave correctly on both MacOS and Linux by requiring it to use only the POSIX "basic"
+# regular expression behavior.
+#
+
+if ! grep -GL 'node\.name?\.text?\.startsWith' "$TARGET" > /dev/null 2>&1; then
+patch --forward -V none --no-backup-if-mismatch -p0 $TARGET <<EOF
+--- a/packages/analyzer/src/features/analyse-phase/creators/handlers.js
++++ b/packages/analyzer/src/features/analyse-phase/creators/handlers.js
+@@ -34,7 +34,7 @@ export function handleModifiers(doc, node) {
+     }
+   });
+ 
+-  if (node.name?.text.startsWith('#')) {
++  if (node.name?.text?.startsWith('#')) {
+     doc.privacy = 'private';
+   }
+EOF
+fi