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perf: 优化MD消息过长处理

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kuaifan 2025-02-24 09:12:12 +08:00
parent 172c562a71
commit 125ce036cd
1 changed files with 33 additions and 5 deletions
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38
app/Module/MsgTool.php
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@ -25,11 +25,23 @@ class MsgTool
}
$isMd = strtolower($type) === 'md';
$placeholders = [];
// 如果是Markdown，转换为HTML
// 如果是Markdown，先处理特殊标记及转换为HTML
if ($isMd) {
$converter = new CommonMarkConverter();
// 处理特殊标记
$pattern = '/:::\s*reasoning\s+(.*?)\s*:::/s';
$counter = 0;
$text = preg_replace_callback($pattern, function($matches) use ($type, $length, &$placeholders, &$counter) {
// 使用更简短的占位符，避免被markdown解析
$placeholder = "@PH::{$counter}::PH@";
$placeholders[$placeholder] = "::: reasoning\n" . self::truncateText($matches[1], $length, $type) . "\n:::";
$counter++;
return $placeholder;
}, $text);
// 转换为HTML
try {
$converter = new CommonMarkConverter();
$text = $converter->convert($text);
} catch (CommonMarkException) {
return "";
@ -50,10 +62,26 @@ class MsgTool
// 递归函数来遍历节点并截取内容
self::traverseNodes($body, $currentLength, $length, $truncatedHtml);
// 如果是Markdown，转换回Markdown
// 如果是Markdown，转换回Markdown及还原特殊标记
if ($isMd) {
$converter = new HtmlConverter();
$truncatedHtml = $converter->convert($truncatedHtml);
// 转换回Markdown
try {
$converter = new HtmlConverter();
$truncatedHtml = $converter->convert($truncatedHtml);
} catch (\Exception) {
return "";
}
// 还原特殊标记
if (!empty($placeholders)) {
$truncatedHtml = preg_replace('/@P?H?:*\s*$/', '', $truncatedHtml);
$preCount = substr_count($truncatedHtml, '@PH::');
$sufCount = substr_count($truncatedHtml, '::PH@');
$diffCount = $preCount - $sufCount;
if ($diffCount > 0) {
$truncatedHtml .= str_repeat('::PH@', $diffCount);
}
$truncatedHtml = strtr($truncatedHtml, $placeholders);
}
}
return $truncatedHtml;