Regex to Get data from new line after semi colon - regex

Question

I am not good at using regex and struggling to make a regex that will get data from new line after the semicolon. For example, look at this example
Regarding:
267 Covert St Rm 3.5
Contact Information:
[phone] <8698695365>
abc#gmail.com
Comments:
I'd like to schedule a viewing for Covert St #3.5, Brooklyn, NY 11207, US.
Please contact me with more information! I am available at
abc#gmail.com
From the above text, I need to get texts under Regarding, contact Information, and comments.
I have made this regex but It is getting whole string
regExp = new RegExp("(?<=Regarding:)(\n).*");
I am making a script in google apps script and parsing data from an email.
Thanks.

Answer 1

I'm not sure if is need RegExp in this case. It can be just splitted:
var s = `Regarding:
267 Covert St Rm 3.5
Contact Information:
[phone] <8698695365>
abc#gmail.com
Comments:
I'd like to schedule a viewing for Covert St #3.5, Brooklyn, NY 11207, US.
Please contact me with more information! I am available at
abc#gmail.com`
var regarding = s.split("Regarding:")[1].split("Contact Information:")[0];
console.log(regarding);
var contacts = s.split("Contact Information:")[1].split("Comments:")[0];
console.log(contacts);
var coments = s.split("Comments:")[1];
console.log(coments);
If you need just one first line after : here you go:
var s = `Regarding:
267 Covert St Rm 3.5
Contact Information:
[phone] <8698695365>
abc#gmail.com
Comments:
I'd like to schedule a viewing for Covert St #3.5, Brooklyn, NY 11207, US.
Please contact me with more information! I am available at
abc#gmail.com`
var regarding = s.split("Regarding:\n")[1].split('\n')[0];
console.log(regarding);
var contacts = s.split("Contact Information:\n")[1].split('\n')[0];
console.log(contacts);
var coments = s.split("Comments:\n")[1].split('\n')[0];
console.log(coments);
But your regExp gives about the same result:
var s = `Regarding:
267 Covert St Rm 3.5
Contact Information:
[phone] <8698695365>
abc#gmail.com
Comments:
I'd like to schedule a viewing for Covert St #3.5, Brooklyn, NY 11207, US.
Please contact me with more information! I am available at
abc#gmail.com`
var regExp = new RegExp("(?<=Regarding:)(\n).*");
var r = s.match(regExp)[0];
console.log(r);
var regExp = new RegExp("(?<=Contact Information:)(\n).*");
var c = s.match(regExp)[0];
console.log(c);
var regExp = new RegExp("(?<=Comments:)(\n).*");
var cm = s.match(regExp)[0];
console.log(cm);
So, what your problem is, after all?

Answer 2

Actually, regex is the way to go here. This snippet does the job and the result array contains all three paragraphs:
const str =
`Regarding:
267 Covert St Rm 3.5
Contact Information:
[phone] <8698695365>
abc#gmail.com
Comments:
I'd like to schedule a viewing for Covert St #3.5, Brooklyn, NY 11207, US.
Please contact me with more information! I am available at
abc#gmail.com`;
const re = /(?<=:(\n|^)).*?(?=\n\n|$)/gis;
const result = str.match(re);
console.log(JSON.stringify(result, null, 2));