Changes

原文内容截取的已经很好了

application/common/ReferenceCheckService.php

@@ -193,7 +193,7 @@ class ReferenceCheckService
                         'created_at'      => $now,
                         'updated_at'      => $now,
                     ]);
-//                    continue;
+                    continue;
                     $this->pushJob(intval($checkId), $delay);
                     $checkIds[] = $checkId;
                     $queued++;
@@ -677,6 +677,9 @@ class ReferenceCheckService
         return $result;
     }
 
+    /** 与上一引用间距低于此值（字符）时视为同句并列，从整句开头截取而非仅取两标签之间 */
+    const CITE_GAP_SENTENCE_THRESHOLD = 60;
+
     /**
      * 按引用位置截取局部上下文：优先取标签前叙述；同句多引时后续引用从上一标签后开始。
      */
@@ -697,32 +700,37 @@ class ReferenceCheckService
         }
 
         $hasPriorCiteInParagraph = ($prevTagEnd > $paragraphStart);
-        // 同段后续引用：从上一 <blue> 后开始；段内首个引用：从段落开头到本标签前
         if ($hasPriorCiteInParagraph) {
-            $localStart = $prevTagEnd;
+            $gapText = $this->buildCitationContextText($content, $prevTagEnd, $tagStart);
+            // 如 motivation [23] and external environment [24]：间距短，取整句而非仅 “and external environment”
+            if (mb_strlen($gapText) < self::CITE_GAP_SENTENCE_THRESHOLD) {
+                $sentenceStart = $this->findSentenceStart($content, $tagStart);
+                $localStart = $this->capContextStartBeforeTag(
+                    $content,
+                    $tagStart,
+                    max($paragraphStart, $sentenceStart)
+                );
+            } else {
+                // 如 … Yin et al. [13] on oncology nurses, but … Yang [14]：间距较长，取上一标签后至本标签前
+                $localStart = $prevTagEnd;
+            }
         } else {
-            $sentenceStart = $this->findSentenceStart($content, $tagStart);
+            $localStart = $this->capContextStartBeforeTag($content, $tagStart, $paragraphStart);
-            $localStart = $this->capContextStartBeforeTag(
-                $content,
-                $tagStart,
-                max($paragraphStart, $sentenceStart)
-            );
         }
 
-        // 默认：引用标签前的论述
+        // 默认：引用标签前的论述（如 Yin et al. [13] → 含 “higher than … Yin et al.”）
         $localEnd = $tagStart;
         $originalText = $this->buildCitationContextText($content, $localStart, $localEnd);
 
-        // 同句多引（如 …[23] and external environment [24]）：上一标签后仅几个词，回退到本句开头
+        // 标签前几乎无正文（如句末 … ICU nurses [14]）→ 改用标签后至下一引用或句末
-        if ($hasPriorCiteInParagraph && mb_strlen($originalText) < 50) {
-            $sentenceStart = $this->findSentenceStart($content, $tagStart);
-            $localStart = max($paragraphStart, $sentenceStart);
-            $originalText = $this->buildCitationContextText($content, $localStart, $localEnd);
-        }
-
-        // 仅段内首个引用且标签前极短时才用标签后文（避免 [24] 误截到 [25] 所在句）
         if (!$this->isMeaningfulCitationContext($originalText)
-            || (!$hasPriorCiteInParagraph && $this->shouldUseTrailingCitationContext($content, $localStart, $tagStart, $tagEnd))
+            || $this->shouldUseTrailingCitationContext(
+                $content,
+                $localStart,
+                $tagStart,
+                $tagEnd,
+                $hasPriorCiteInParagraph
+            )
         ) {
             $trailEnd = ($nextTagStart < $sentenceEnd) ? $nextTagStart : $sentenceEnd;
             $trailText = $this->buildCitationContextText($content, $tagEnd, $trailEnd);
@@ -749,12 +757,23 @@ class ReferenceCheckService
 
     /**
      * 标签前仅有作者缩写等极短片段时，改用标签后上下文
+     *
+     * @param bool $hasPriorCiteInParagraph 同段多引时，短片段常为并列成分，不应误取标签后下一句
      */
-    private function shouldUseTrailingCitationContext($content, $localStart, $tagStart, $tagEnd)
+    private function shouldUseTrailingCitationContext(
-    {
+        $content,
+        $localStart,
+        $tagStart,
+        $tagEnd,
+        $hasPriorCiteInParagraph = false
+    ) {
         $before = $this->buildCitationContextText($content, $localStart, $tagStart);
         if (!$this->isMeaningfulCitationContext($before)) {
-            return true;
+            return !$hasPriorCiteInParagraph;
+        }
+
+        if ($hasPriorCiteInParagraph) {
+            return false;
         }
 
         return mb_strlen($before) < 25;
@@ -823,7 +842,7 @@ class ReferenceCheckService
         $text = trim(strip_tags($text));
         $text = preg_replace('/\s+/u', ' ', $text);
         $text = ltrim($text, "\xEF\xBB\xBF");
-        $text = preg_replace('/^[\s.，。；、:!?]+/u', '', $text);
+        $text = preg_replace('/^[\s.!?。！？,，、；：]+/u', '', $text);
 
         return $text;
     }