5kyu_PhoneDirectory.js

// 5kyu - Phone Directory

// Description:

// John keeps a backup of his old personal phone book as a text file. On each line 
// of the file he can find the phone number (formated as +X-abc-def-ghij where X stands 
// for one or two digits), the corresponding name between < and > and the address.

// Unfortunately everything is mixed, things are not always in the same order, lines 
// are cluttered with non-alpha-numeric characters.

// Examples of John's phone book lines:

// "/+1-541-754-3010 156 Alphand_St. <J Steeve>\n"

// " 133, Green, Rd. <E Kustur> NY-56423 ;+1-541-914-3010!\n"

// "<Anastasia> +48-421-674-8974 Via Quirinal Roma\n"

// Could you help John with a program that, given the lines of his phone book and a 
// phone number returns a string for this number : "Phone => num, Name => name, 
// Address => adress"

// Examples:

// s = "/+1-541-754-3010 156 Alphand_St. <J Steeve>\n 133, Green, Rd. <E Kustur> 
// NY-56423 ;+1-541-914-3010!\n"

// phone(s, "1-541-754-3010") should return "Phone => 1-541-754-3010, Name => J 
// Steeve, Address => 156 Alphand St."
// It can happen that, for a few phone numbers, there are many people for a phone 
// number -say nb- , then
// return : "Error => Too many people: nb"
// or it can happen that the number nb is not in the phone book, in that case

// return: "Error => Not found: nb"

// You can see other examples in the test cases.
// JavaScript random tests completed by @matt c

let phone = function(str, num) {
    let line = str.split("\n").filter(a => a.indexOf(num) > -1);
    
    if(line.length !== 1)
      return (line.length > 1) ? `Error => Too many people: ${num}` : `Error => Not found: ${num}`
    
    let name = /\<([\w|\s|\']+)\>/g.exec(line[0])[1],
        address = line[0].replace(RegExp(num), "")
                         .replace(/\<([\w|\s\']+)\>|([\:\;\,\?\!\*\+\;\$\/])/g, "")
                         .replace(/[\s\_]+/g, " ")
                         .trim();
                         
    return `Phone => ${num}, Name => ${name}, Address => ${address}`;
}