How do replace these with JSL with regex substitution?

[#1]

This is copied in the browser. How to use JSL's regular substitution is processed into syntactic JSL with the following requirements:
1, contains POST......HTTP/1.1 replaced with: u="...";h=[=>];
2, containing:, write h
3. The last line..., replace with: jj="...";rs=New HTTP Request(URL(u),Method("POST"),JSON(jj),Headers(h));

Thanks!

POST https://app.com/w1/api HTTP/1.1
Host: apparticle.longhuvip.com
Connection: keep-alive
Content-Length: 87
Accept: application/json, text/javascript, */*; q=0.01
Origin: https://app.com
User-Agent: Mozilla/5.0 (Linux); 5.11.0.6
Content-Type: application/x-www-form-urlencoded; charset=UTF-8
Referer: https://appp.com/w33/community/refreshKey=1696089600
Accept-Encoding: gzip, deflate
Accept-Language: zh-CN,en-US;q=0.8
X-Requested-With: com.aiyu.kaipanla

c=ForumsMsgJX&a=GetInfo&MsgID=30927&Tag=1&DeviceID=ffffffff-e4d8-03bc-ffff-ffffb561792e

[#2]

What do you need the item count for? Str is a string, not a list so you cannot use N Items on it (you need to use the splitter version which you get using Words()).

[#3]

• Thank you. I just wanted a different substitution in the last line