✨ feat: 优化样例输入输出处理逻辑并增强复制功能

2026-04-12 12:59:35 +08:00
parent 7334f3a368
commit c0c0cc19b2
1 changed files with 139 additions and 52 deletions
--- a/web/template/syzoj/problem.php
+++ b/web/template/syzoj/problem.php
@@ -254,42 +254,140 @@ if ($pr_flag) {
    <?php } ?>

    <?php
-    $sinput = str_replace("<", "&lt;", $row['sample_input']);
-    $sinput = str_replace(">", "&gt;", $sinput);
-    $soutput = str_replace("<", "&lt;", $row['sample_output']);
-    $soutput = str_replace(">", "&gt;", $soutput);
+    function normalize_sample_text($text)
+    {
+      return str_replace(array("\r\n", "\r"), "\n", (string)$text);
+    }
+
+    function trim_sample_chunk($text)
+    {
+      return trim(normalize_sample_text($text), "\n");
+    }
+
+    function compact_sample_chunks($chunks)
+    {
+      $result = array();
+      foreach ($chunks as $chunk) {
+        $chunk = trim_sample_chunk($chunk);
+        if ($chunk !== '') {
+          $result[] = $chunk;
+        }
+      }
+      return $result;
+    }
+
+    function split_sample_chunks_with_pattern($text, $pattern)
+    {
+      $chunks = preg_split($pattern, normalize_sample_text($text));
+      if ($chunks === false) {
+        return array();
+      }
+      return compact_sample_chunks($chunks);
+    }
+
+    function build_sample_pairs($input, $output)
+    {
+      $input = normalize_sample_text($input);
+      $output = normalize_sample_text($output);
+      if ($input === '' || $output === '') {
+        return array();
+      }
+
+      $patterns = array(
+        '/^\s*(?:sample|example|样例)\s*\d+\s*$/imu',
+        '/^\s*(?:[-=*_]{3,})\s*$/m',
+        "/\n\s*\n/"
+      );
+
+      foreach ($patterns as $pattern) {
+        $inputChunks = split_sample_chunks_with_pattern($input, $pattern);
+        $outputChunks = split_sample_chunks_with_pattern($output, $pattern);
+
+        if (count($inputChunks) > 1 && count($inputChunks) === count($outputChunks)) {
+          $pairs = array();
+          for ($index = 0; $index < count($inputChunks); $index++) {
+            $pairs[] = array(
+              'input' => $inputChunks[$index],
+              'output' => $outputChunks[$index]
+            );
+          }
+          return $pairs;
+        }
+      }
+
+      return array();
+    }
+
+    function format_sample_code($text)
+    {
+      return htmlspecialchars(trim_sample_chunk($text), ENT_NOQUOTES, 'UTF-8');
+    }
+
+    function format_sample_attr($text)
+    {
+      return htmlentities(trim_sample_chunk($text), ENT_QUOTES, 'UTF-8');
+    }
+
+    $sampleInputText = normalize_sample_text($row['sample_input']);
+    $sampleOutputText = normalize_sample_text($row['sample_output']);
+    $samplePairs = build_sample_pairs($sampleInputText, $sampleOutputText);
+    $showSampleIndex = count($samplePairs) > 1;
+    $singleSampleInput = trim_sample_chunk($sampleInputText);
+    $singleSampleOutput = trim_sample_chunk($sampleOutputText);
    ?>
-    <?php if (strlen($sinput) > 0 && $sinput != "\n" || isset($_GET['spa'])) { ?>
+    <?php if ($showSampleIndex) { ?>
+      <?php foreach ($samplePairs as $sampleIndex => $samplePair) { ?>
        <div class="row">
          <div class="column">
-          <h4 class="ui top attached block header sample-header"><?php echo $MSG_Sample_Input ?></h4>
-          <!-- <span class=copy id=\"copyin\" data-clipboard-text=\"".($sinput)."\"><?php echo $MSG_COPY; ?></span> -->
+            <h4 class="ui top attached block header sample-header"><?php echo $MSG_Sample_Input . ' ' . ($sampleIndex + 1); ?></h4>
            <div class="ui bottom attached segment font-content sample-box">
-            <span class="copy sample-copy" id="copyin"
-              data-clipboard-text="<?php echo htmlentities($sinput, ENT_QUOTES, 'UTF-8'); ?>"><?php echo $MSG_COPY; ?></span>
-            <!-- <pre><?php echo ($sinput); ?></pre> -->
+              <span class="copy sample-copy"
+                data-clipboard-text="<?php echo format_sample_attr($samplePair['input']); ?>"><?php echo $MSG_COPY; ?></span>
              <pre
-              style="margin-top: 0; margin-bottom: 0; "><code id='sinput' class="lang-plain"><?php echo ($sinput); ?></code></pre>
+                style="margin-top: 0; margin-bottom: 0; "><code class="lang-plain"><?php echo format_sample_code($samplePair['input']); ?></code></pre>
+            </div>
+          </div>
+        </div>
+        <div class="row">
+          <div class="column">
+            <h4 class="ui top attached block header sample-header"><?php echo $MSG_Sample_Output . ' ' . ($sampleIndex + 1); ?></h4>
+            <div class="ui bottom attached segment font-content sample-box">
+              <span class="copy sample-copy"
+                data-clipboard-text="<?php echo format_sample_attr($samplePair['output']); ?>"><?php echo $MSG_COPY; ?></span>
+              <pre
+                style="margin-top: 0; margin-bottom: 0; "><code class="lang-plain"><?php echo format_sample_code($samplePair['output']); ?></code></pre>
            </div>
          </div>
        </div>
      <?php } ?>
-    <?php if (strlen($soutput) > 0 && $soutput != "\n" || isset($_GET['spa'])) { ?>
+    <?php } else { ?>
+      <?php if ($singleSampleInput !== '' || isset($_GET['spa'])) { ?>
+        <div class="row">
+          <div class="column">
+            <h4 class="ui top attached block header sample-header"><?php echo $MSG_Sample_Input ?></h4>
+            <div class="ui bottom attached segment font-content sample-box">
+              <span class="copy sample-copy"
+                data-clipboard-text="<?php echo format_sample_attr($singleSampleInput); ?>"><?php echo $MSG_COPY; ?></span>
+              <pre
+                style="margin-top: 0; margin-bottom: 0; "><code class="lang-plain"><?php echo format_sample_code($singleSampleInput); ?></code></pre>
+            </div>
+          </div>
+        </div>
+      <?php } ?>
+      <?php if ($singleSampleOutput !== '' || isset($_GET['spa'])) { ?>
        <div class="row">
          <div class="column">
            <h4 class="ui top attached block header sample-header"><?php echo $MSG_Sample_Output ?></h4>
-          <!-- <span class=copy id=\"copyout\" data-clipboard-text=\"".($soutput)."\"><?php echo $MSG_COPY; ?></span> -->
            <div class="ui bottom attached segment font-content sample-box">
-            <span class="copy sample-copy" id="copyout"
-              data-clipboard-text="<?php echo htmlentities($soutput, ENT_QUOTES, 'UTF-8'); ?>"><?php echo $MSG_COPY; ?></span>
-            <!-- <div class="ui existing segment"> -->
+              <span class="copy sample-copy"
+                data-clipboard-text="<?php echo format_sample_attr($singleSampleOutput); ?>"><?php echo $MSG_COPY; ?></span>
              <pre
-              style="margin-top: 0; margin-bottom: 0; "><code id='soutput' class="lang-plain"><?php echo ($soutput); ?></code></pre>
-            <!-- </div> -->
+                style="margin-top: 0; margin-bottom: 0; "><code class="lang-plain"><?php echo format_sample_code($singleSampleOutput); ?></code></pre>
            </div>
          </div>
        </div>
      <?php } ?>
+    <?php } ?>
    <?php if ($row['hint'] || isset($_GET['spa'])) { ?>
      <div class="row">
        <div class="column">
@@ -701,34 +799,23 @@ if ($pr_flag) {


  <script>
-    if ($('#copyin')[0] != undefined) {
+    $('.sample-copy').each(function () {
+      var button = $(this);
+      var defaultLabel = button.text();
+      var clipboard = new Clipboard(this);

-      var clipboardin = new Clipboard($('#copyin')[0]);
-      clipboardin.on('success', function (e) {
-        $("#copyin").text("<?php echo $MSG_COPY . $MSG_SUCCESS; ?>!");
-        setTimeout(function () { $("#copyin").text("<?php echo $MSG_COPY; ?>"); }, 1500);
+      clipboard.on('success', function (e) {
+        button.text("<?php echo $MSG_COPY . $MSG_SUCCESS; ?>!");
+        setTimeout(function () { button.text(defaultLabel); }, 1500);
        console.log(e);
      });
-      clipboardin.on('error', function (e) {
-        $("#copyin").text("<?php echo $MSG_COPY . $MSG_FAIL; ?>!");
-        setTimeout(function () { $("#copyin").text("<?php echo $MSG_COPY; ?>"); }, 1500);
-        console.log(e);
-      });
-    }
-    if ($('#copyout')[0] != undefined) {

-      var clipboardout = new Clipboard($('#copyout')[0]);
-      clipboardout.on('success', function (e) {
-        $("#copyout").text("<?php echo $MSG_COPY . $MSG_SUCCESS; ?>!");
-        setTimeout(function () { $("#copyout").text("<?php echo $MSG_COPY; ?>"); }, 1500);
+      clipboard.on('error', function (e) {
+        button.text("<?php echo $MSG_COPY . $MSG_FAIL; ?>!");
+        setTimeout(function () { button.text(defaultLabel); }, 1500);
        console.log(e);
      });
-      clipboardout.on('error', function (e) {
-        $("#copyout").text("<?php echo $MSG_COPY . $MSG_FAIL; ?>!");
-        setTimeout(function () { $("#copyout").text("<?php echo $MSG_COPY; ?>"); }, 1500);
-        console.log(e);
    });
-    }

  </script>
  <?php if (isset($OJ_MATHJAX) && $OJ_MATHJAX) { ?>