翻译开头 ASCII 残片清理(aby/nope/fewest 族):cleanTrans 加原文对照剥除——开头2~6位小写字母+分隔符+CJK/假名,且该片段不在原文中(原文真词或大写开头如AI/OK不误伤);四处调用点传 src(兜底/单句/编号批/逐段兜底);'aby'与'html>'同族=模型困惑态首词元落训练残片,后续译文健康时旧闸门全放行

app/src/main/java/com/k2fsa/sherpa/onnx/MainActivity.kt

@@ -2077,7 +2077,13 @@ class MainActivity : AppCompatActivity() {
         "^(`{3,}\\s*[A-Za-z]*>?|</?[A-Za-z0-9_|]{1,18}>|\\.?html?>)",
         RegexOption.IGNORE_CASE)
 
-    private fun cleanTrans(raw: String?): String? {
+    // 小写 ASCII 残片(aby/nope/fewest 族):2~6 个小写字母+空白/标点后随
+    // CJK/假名。必须"原文里没有该片段"才剥——原件含 iPhone/PDF 等真词时
+    // 不误伤;大写开头(AI/OK)天然不在此列
+    private val transAsciiNoise = Regex(
+        "^([a-z]{2,6})[\\s,、，。!！?？]+(?=[\\u4e00-\\u9fff\\u3040-\\u30ff])")
+
+    private fun cleanTrans(raw: String?, src: String? = null): String? {
         if (raw.isNullOrBlank()) return null
         val ls = raw.trim().lines().toMutableList()
         while (ls.isNotEmpty() && transLabelLine.matches(ls.first().trim()))
@@ -2089,6 +2095,14 @@ class MainActivity : AppCompatActivity() {
             s = transLabelPrefix.replaceFirst(s, "").trim()
             val s1 = s
             s = transNoisePrefix.replaceFirst(s, "").trim()
+            if (s == s1 && src != null) {
+                transAsciiNoise.find(s)?.let { m ->
+                    val frag = m.groupValues[1]
+                    if (!src.contains(frag, ignoreCase = true)) {
+                        s = s.removeRange(m.range).trim()
+                    }
+                }
+            }
             if (s != s1) {
                 Log.i(TAG, "TAP-NOISE stripped: " +
                         s1.take(16).replace("\n", " "))
@@ -2214,7 +2228,7 @@ class MainActivity : AppCompatActivity() {
                 maxNewTokens = (src.length * 2 + 96).coerceAtMost(1200),
                 temperature = 0.2f, repeatPenalty = 1.1f,
             )
-            val tr = cleanTrans(out)
+            val tr = cleanTrans(out, src)
             when {
                 tr.isNullOrBlank() || isEcho(src, tr, echoJaccardTh(src)) ||
                         !targetLangOk(tr) -> {
@@ -2344,7 +2358,7 @@ class MainActivity : AppCompatActivity() {
             } catch (t: Throwable) {
                 Log.w(TAG, "TRANSLATE single failed: " + t.message); null
             }
-            val tr = cleanTrans(one)
+            val tr = cleanTrans(one, segKeys[0].second)
             if (!tr.isNullOrEmpty()) got[segKeys[0].first] = tr
             if (got.isEmpty()) return null
         } else {
@@ -2370,7 +2384,7 @@ class MainActivity : AppCompatActivity() {
             }
             val byIdx = extractNumberedPairs(out)
             segKeys.forEachIndexed { i, st ->
-                byIdx?.get((i + 1).toString())?.let { cleanTrans(it) }
+                byIdx?.get((i + 1).toString())?.let { cleanTrans(it, st.second) }
                 ?.takeIf { it.isNotBlank() }
                 ?.let { got[st.first] = it }
             }
@@ -2399,7 +2413,7 @@ class MainActivity : AppCompatActivity() {
                             temperature = 0f,
                         )
                     } catch (t: Throwable) { null }
-                    cleanTrans(one)?.let { got[st.first] = it }
+                    cleanTrans(one, st.second)?.let { got[st.first] = it }
                 }
             }
             if (got.isEmpty()) return null