feat: from:me search syntax

src/lib/strings/helpers.ts

@@ -37,3 +37,27 @@ export function countLines(str: string | undefined): number {
   if (!str) return 0
   return str.match(/\n/g)?.length ?? 0
 }
+
+// Augments search query with additional syntax like `from:me`
+export function augmentSearchQuery(query: string, {did}: {did?: string}) {
+  // Don't do anything if there's no DID
+  if (!did) {
+    return query
+  }
+
+  // We don't want to replace substrings that are being "quoted" because those
+  // are exact string matches, so what we'll do here is to split them apart
+
+  // Even-indexed strings are unquoted, odd-indexed strings are quoted
+  const splits = query.split(/("(?:[^"\\]|\\.)*")/g)
+
+  return splits
+    .map((str, idx) => {
+      if (idx % 2 === 0) {
+        return str.replaceAll(/(^|\s)from:me(\s|$)/g, `$1${did}$2`)
+      }
+
+      return str
+    })
+    .join('')
+}