A date alone isn't an unquoted name; an image under a post token keys by the post

- "Ballers.2014.S01E01.HDTV.x264-KILLERS[ettv] 15_07_2015.rar", "Computer Bild
  - Ausgabe 152015 - 15_07_2015.rar": the cut after "] " or " - " left
  "15_07_2015.rar" for every item of a Razor1911 dump (1,335 files for 12);
  a date alone after the cut means the whole text is the name.
- "MDG005b - (01/90) "IMG_2307.JPG"": a counter in parentheses makes no post
  key, so every "IMG" set of the poster was one (609 for 90); an image under
  a post token is keyed by it too.

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

edge/src/indexer.rs

@@ -320,6 +320,14 @@ fn is_image_name(name: &str) -> bool {
     [".jpg", ".jpeg", ".png", ".gif", ".bmp", ".webp", ".tif", ".tiff"].iter().any(|e| lower.ends_with(e))
 }
 
+/// DATE_ONLY (lib/headers/subject.ts): a file name that is a date alone ("15_07_2015.rar").
+fn date_only(name: &str) -> bool {
+    static DATE_ONLY: std::sync::LazyLock<regex::Regex> = std::sync::LazyLock::new(|| {
+        regex::Regex::new(r"^(?:[0-9]{1,2}[-_.][0-9]{1,2}[-_.](?:19|20)[0-9]{2}|(?:19|20)[0-9]{2}[-_.][0-9]{1,2}[-_.][0-9]{1,2})\.[A-Za-z0-9]{2,4}$").unwrap()
+    });
+    DATE_ONLY.is_match(name)
+}
+
 pub fn unquoted_name(before_counter: &str) -> Option<String> {
     let mut text = before_counter.trim_end_matches(js::is_space);
     if text.len() >= 4 && text.is_char_boundary(text.len() - 4) && text[text.len() - 4..].eq_ignore_ascii_case("yenc") {
@@ -374,7 +382,8 @@ pub fn unquoted_name(before_counter: &str) -> Option<String> {
         // Or after an arrow ("… -> Exclusive-tgirls_000000-lg.jpg").
         let arrow = text.rfind("-> ").map_or(0, |i| i + 3);
         let cut = bracket.max(dash).max(arrow);
-        let name = js::trim(&text[cut..]);
+        // A date alone after the cut ("… [ettv] 15_07_2015.rar"): the whole text is the name.
+        let name = if date_only(js::trim(&text[cut..])) { js::trim(text) } else { js::trim(&text[cut..]) };
         // An image after numbered text without a separator: its last word ("<abm> … AB: part2 0573-1002 043.jpg").
         // Not an index alone ("Teen Tease Self Shooter sad1 (10).jpg").
         if cut == 0 && is_image_name(name) && name.contains(' ') {
@@ -978,6 +987,8 @@ mod unquoted_tests {
             ("pal!    [Mivina high(1).wmv\" yEnc] ", Some("Mivina high(1).wmv")),
             ("[03/21 Geroellheimer - S03E16.part01.rar\" yEnc ", Some("Geroellheimer - S03E16.part01.rar")),
             ("<Group> FP -> {EXL01~P~004} -> Alexia (3) -> VF -> [0001 of 0076] -> Exclusive-tgirls_000000-lg.jpg ", Some("Exclusive-tgirls_000000-lg.jpg")),
+            ("Ballers.2014.S01E01.HDTV.x264-KILLERS[ettv] 15_07_2015.rar ", Some("Ballers.2014.S01E01.HDTV.x264-KILLERS[ettv] 15_07_2015.rar")),
+            ("Computer Bild - Ausgabe 152015 - 15_07_2015.rar ", Some("Computer Bild - Ausgabe 152015 - 15_07_2015.rar")),
             ("<abm> <Duke> here's a little thanksgiving present: AB: part2 0573-1002 043.jpg ", Some("043.jpg")),
             ("xlady post You, Me And Dupree www.x2l.nl [001/106] 'You, Me And Dupree.nfo'", Some("You, Me And Dupree.nfo")),
             ("[01/77][LIBRATEAM_M2219009.par2] Onbeperkt downloaden met een snelheid van 1,22 MB p.s. en dat voor maar 7,95 p.m. www.libranews.nl", Some("LIBRATEAM_M2219009.par2")),

edge/src/names.rs

@@ -843,7 +843,9 @@ pub fn release_identity(poster: &str, subject: &str, name: &str) -> Release {
         // Keyed by its set when its name has one ("diana-040-001.jpg").
         let name = if prefix.is_empty() { stem.clone() } else { prefix.clone() };
         let set = image_set(&stem);
-        let key = if set.is_empty() { hash(&["stem", poster, &name]) } else { hash(&["stem", poster, &set]) };
+        let set = if set.is_empty() { name.clone() } else { set };
+        // Under a post token ("MDG005b - (01/90) "IMG_2307.JPG""): the post's too.
+        let key = if is_post_token(&remainder) { hash(&["stem", poster, &set, &remainder]) } else { hash(&["stem", poster, &set]) };
         return Release { key, name, source: "stem", file_total };
     }
     // An audiobook's or album's tracks without a name around them: by their name without its numbers.
@@ -1537,6 +1539,9 @@ mod image_set_tests {
             lois("02", "lois 1258 Billy Joel - Extremes.part01.rar lois 1258 Billy Joel - Extremes ").key,
             lois("01", "lois 1258 Billy Joel - Extremes.par2 lois 1258 Billy Joel - Extremes ").key
         );
+        let mdg = |post: &str, i: &str, n: &str| super::release_identity("p", &format!(r#"{post} - ({i}/90) "{n}" - 16,14 MB - yEnc"#), n);
+        assert_eq!(mdg("MDG005b", "01", "IMG_2307.JPG").key, mdg("MDG005b", "02", "IMG_2308.jpg").key);
+        assert_ne!(mdg("MDG005b", "01", "IMG_2307.JPG").key, mdg("MDG006a", "01", "IMG_4410.JPG").key);
         let milf = |i: &str, n: &str, kb: &str| super::release_identity("p", &format!("(Hot MILF getting banged hard)[{i}/70] - {n} - {kb}"), n);
         assert_eq!(milf("27", "2407.jpg", "28").key, milf("28", "2408.jpg", "31").key);
         assert_eq!(super::file_stem_re("rld-gtre.r13.002"), "rld-gtre");