查找标签之间的特定值

Question

I'm trying to write a regular expression to let me find a value from @update line (between opening /*@file and closing @*/

Example code:

/*@file
######################################################
@package        Webapp
@title          your_title
@version        1.0
@tags           tag1,tag2
@lines          215
@created        2020/04/03 20:42:49
@updated        2020/03/03 20:44:49
@description
Lorem ipsum dolor sit amet, consectetur adipisicing elit.
######################################################
@*/

In this case, the desired value is 2020/03/03 20:44:49

I finished my attempts at

[\/][*]@file\n([\S\s]*?)update([\S\s]*?)[@][*][\/]

And my JS code

currentText.replace(/[\/][*]@file\n([\S\s]*?)update([\S\s]*?)[@][*][\/]/g, "SOME TEXT");

Thank you in advance for your help

Answer 1

You may use this regex with a capture group:

/\/\*@file[^]*?@updated[ \t]*(.+)[^]*?@\*\//

RegEx Demo

RegEx Details:

• \/\*@file : Match text /*@file
• [^]*? : Match 0 or of any characters (including newlines) (lazy)
• @updated[ \t]* : Match text @updated followed by 0 or more space/tabs
• (.+) : Match and capture value we want to grab
• [^]*? : Match 0 or of any characters (including newlines) (lazy)
• @\*\/ : Match text @*/

Answer 2

I think it could be right

const Alt = currentText.replace(/ /g, '').substring((currentText.replace(/ /g, '').indexOf('@updated')+8),(currentText.replace(/ /g, '').indexOf('@updated')+26))
Alt = Alt.substring(0,10) + ' ' + Alt.substring(11, 18)
console.log(Alt)