I’m creating a app to transform whatsapp backup .txt into a .json and .csv files.
My app it’s working but i am refactoring now.
This code snippet currently solves my problem using js:
function stringToObject(string) {
let commaSepareted = string.split(',')
let date = commaSepareted[0]
if(commaSepareted.length >= 2){
let hyphenSepareted = commaSepareted.filter((_, index) => index >= 1).join().split('-')
let time = hyphenSepareted[0].trimEnd().trimStart()
let twoPointsSepareted = hyphenSepareted.filter((_, index) => index >= 1).join().split(':')
let username = twoPointsSepareted[0].trimEnd().trimStart()
let message = twoPointsSepareted.filter((_, index) => index >= 1).join()
return {
date,
time,
username,
message
}
}
return null
}
I want to refactor to resolve the same problem but using REGEX, so i basically need a function the receive a string in this format: "0/00/00, 00:00 – myName: message" and return a object like this:
{
"date": "0/00/00",
"time" : "00:00",
"username": "myName",
"message": "message"
}
>Solution :
Javascript happens to have a powerful Date constructor, which can parse and return much of the data you want. However, you you can also use regular expressions for this purpose. I quickly wrote one up that may work for your purposes: /(\d+\/\d+\/\d+), (\d+:\d+) - (\w+): (.*)/i, which, in code, looks like this: str.match(/(\d+\/\d+\/\d+), (\d+:\d+) - (\w+): (.*)/i)
To process that into your object format, you’d need a small parser function:
function parseData(inp) {
let keys = ["date","time","username","message"]
return Object.fromEntries(inp.match(/(\d+\/\d+\/\d+), (\d+:\d+) - (\w+): (.*)/i).slice(1).map((n,i)=>[keys[i],n]))
}