JavaScript提取Reference标签多行内容：匹配至下一个星号

用户有一段带星号标签的结构化文本，需要提取Reference:标签下的所有内容（直到遇到下一个*开头的标签为止），但现有JS代码仅能提取单行内容，无法满足需求。

原始文本 #

This is a code update

* Official Name:  Noner


* Pub: https://content.upcodes.co/viewer/washington/wa-mechanical-code-2021

* Agency:  Agency Ni

* Reference: 

https://web.archive.org/web/20230226234118/https://lawfilesext.leg.wa.gov/law/wsr/agency/BuildingCodeCouncil.htm

https://web.archive.org/web/20230303022030/https://lawfilesext.leg.wa.gov/law/wsr/2023/02/23-02-055.htm (#1)

* Citation: WAC 51-52 / WSR 23-02-055

* Draft Doc Title: 

 WSR 23-02-055 (#1)

* Draft Source Doc: https://web.archive.org/web/20230303022030/https://lawfilesext.leg.wa.gov/law/wsr/2023/02/23-02-055.htm (#1)

* Draft Drive: https://drive.google.com/file/d/1pYmwQS3t-ZX-Vyg9yBabtIpXZ7By2G6f/view?usp=share_link ( #1)

* Final Doc Title: 

   IECC Com Update(#1)

   IECC Res Update (#2)

   IECC Res Update (#3)

* Final Source Doc: 
  https://web.archive.org/web/20230303022130/https://apps.leg.wa.gov/wac/default.aspx?cite=51-52&full=true&pdf=true (#1)
 https://web.archive.org/web/20230303022030/https://lawfilesext.leg.wa.gov/law/wsr/2023/02/23-02-055.htm (#2)

* Final Drive: https://web.archive.org/web/20230303022130/https://apps.leg.wa.gov/wac/default.aspx?cite=51-52&full=true&pdf=true (#1)

https://web.archive.org/web/2023030302fdfdfg2130/https://apps.legfdg.gov/wac/default.aspx?cite=51-52&fdsfullfdsf=true&pfdsfdf=true  (#2)

* Effective Date: January 4, 2023

现有代码（仅支持单行提取） #

//Extract Reference    
var reference = description.search("Reference:");
if(reference != -1){
  reference = description.match(/(?<=^\* Reference\s*:)\s*[\n]*[^\n\r]*/m);  
  reference  = reference?.[0].trim();   
}else{
  reference = '';
}
console.log('Reference: ' + reference);

期望输出 #

https://web.archive.org/web/20230226234118/https://lawfilesext.leg.wa.gov/law/wsr/agency/BuildingCodeCouncil.htm

https://web.archive.org/web/20230303022030/https://lawfilesext.leg.wa.gov/law/wsr/2023/02/23-02-055.htm (#1)

修改正则表达式，实现匹配Reference:标签后到下一个*开头标签前的所有内容，处理多余空白后即可得到目标结果：

//Extract Reference    
var reference = '';
const referenceMatch = description.match(/^\* Reference\s*:\s*([\s\S]*?)(?=\n\* |$)/m);
if (referenceMatch) {
  reference = referenceMatch[1].trim();
}
console.log('Reference: ' + reference);

代码说明 #

• ^\* Reference\s*: 精准匹配开头的* Reference:标签，允许标签后带任意空白字符
• ([\s\S]*?) 非贪婪匹配任意字符（含换行），避免过度匹配到后续标签内容
• (?=\n\* |$) 正向预查终止条件：匹配换行后接* 的位置，或文本结尾，确保只提取到下一个标签前的内容
• 最后用trim()去除首尾多余的空白和换行符

内容的提问来源于stack exchange，提问作者alyssaeliyah