npm install perl-regexBinding Perl to enrich the regular expression from node.js, such as look behind assertion.
* Perl 5 is needed.
``bash`
npm install perl-regex
* Match using regular expression in string:
`javascript
let pregex = require('perl-regex');
console.log(pregex.match('EMAIL: test@example.com',
'^email: [a-zA-Z0-9_.+-]+@[a-zA-Z0-9-]+\\.[a-zA-Z0-9-.]+$',
'i'));
// output:
// true
`
* Match using RegExp object:
`javascript
let pregex = require('perl-regex');
console.log(pregex.match('EMAIL: test@example.com',
/^email: [a-zA-Z0-9_.+-]+@[a-zA-Z0-9-]+\.[a-zA-Z0-9-.]+$/i));
// output:
// true
`
* Exec regular expression in string:
`javascript
let pregex = require('perl-regex');
console.log(pregex.exec('Great responsibility comes with great power',
'(?<=great )\\w+',
'gi'));
// output:
// [ 'power', 'responsibility', 'power' ]
`
* Exec RegExp object:
`javascript
let pregex = require('perl-regex');
console.log(pregex.exec('https://127.0.0.1:1314/index.html',
/(https?):\/\/(\d+\.\d+\.\d+\.\d+):(\d+)\/([a-zA-z.]+)/));
// output:
// [ 'https://127.0.0.1:1314/index.html',
// 'https',
// '127.0.0.1',
// '1314',
// 'index.html' ]
``