Subject names lose the brackets the counters left unmatched

A poster's counter without its "[" ("… Facialized 002/477] - 0177.jpg")
left "… Facialized ]" as the release name (11286967). displayName (TS) and
display_name (Rust) drop unmatched brackets from subject and post names
only; the identity key keeps the remainder as it was, so no release splits.

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>

lib/release/identity.ts

@@ -105,6 +105,29 @@ export function subjectRemainder(subject: string): string {
     .trim()
 }
 
+/**
+ * A subject name as shown: brackets the counters left unmatched removed ("… Facialized 002/477] - 0177.jpg", the
+ * counter's "[" missing, gave "… Facialized ]"; LOG.md 2026-10-29 (121)). Only the name: the key keeps the remainder.
+ */
+export function displayName(remainder: string): string {
+  if (!/[[\]()]/.test(remainder)) return remainder
+  const drop = new Set<number>()
+  for (const [open, close] of [['[', ']'], ['(', ')']]) {
+    const opens: number[] = []
+    for (let i = 0; i < remainder.length; i++) {
+      if (remainder[i] === open) opens.push(i)
+      else if (remainder[i] === close) {
+        if (opens.length > 0) opens.pop()
+        else drop.add(i)
+      }
+    }
+    for (const i of opens) drop.add(i)
+  }
+  if (drop.size === 0) return remainder
+  const name = remainder.split('').filter((_, i) => !drop.has(i)).join('').replace(/ {2,}/g, ' ').trim()
+  return name || remainder
+}
+
 /**
  * Posting tools put random per-file tokens and poster IDs in subjects (e.g.
  * `elys-de81bcabef5faf6a - [Nyh5Q07Y]`); only text that still reads like a
@@ -448,7 +471,7 @@ export function releaseIdentity(input: ReleaseInput): ReleaseIdentity | null {
     if (!image && RANDOM_VOLUME.test(input.name) && /^[A-Za-z0-9_-]+$/.test(stem) && looksRandom(stem.replace(/[-_]/g, ''))) parts.push(stem)
     return {
       key: hash(...parts),
-      name: remainder,
+      name: displayName(remainder),
       fileTotal,
       source: 'subject',
     }
@@ -456,7 +479,7 @@ export function releaseIdentity(input: ReleaseInput): ReleaseIdentity | null {
   // Not a name, but a post id (e.g. `83110629-n [10/18] - "random"`): with the
   // [i/M] counter it groups the files of one post whose names are random.
   if (!tag && postTotal && isPostToken(remainder)) {
-    return { key: hash('post', poster, remainder, postTotal), name: remainder, fileTotal, source: 'post' }
+    return { key: hash('post', poster, remainder, postTotal), name: displayName(remainder), fileTotal, source: 'post' }
   }
   // A scene music post's index files under a bare counter go with its tracks: the artist and the total ("[01/13] -
   // "00-ammar-turk_uit_de_kroeg-single-web-nl-2022-cover.jpg"" with "[05/13] - "01-ammar-turk_uit_de_kroeg.mp3"": the

lib/release/index.ts

@@ -1,5 +1,5 @@
 /**
  * Grouping of files into releases (downloads), independent of AdonisJS.
  */
-export { releaseIdentity, par2ReleaseIdentity, par2ReleaseName, rarReleaseIdentity, isGenericName, fileStem, sizeAfterName, runOn, subjectRemainder, namesRelease, isPostToken, type ReleaseIdentity, type ReleaseInput } from './identity.js'
+export { releaseIdentity, displayName, par2ReleaseIdentity, par2ReleaseName, rarReleaseIdentity, isGenericName, fileStem, sizeAfterName, runOn, subjectRemainder, namesRelease, isPostToken, type ReleaseIdentity, type ReleaseInput } from './identity.js'
 export { looksRandom } from './random.js'