Daily Challenge #39 - Virus

const normalize = string => string.toLowerCase()
                                  .replace(/ie/g, "ei")
                                  .split('. ')
                                  .map(val => val[0].toUpperCase() + val.substring(1))
                                  .join('. ');

def antivirus(text):
    str_arr = text.lower().replace('ie', 'ei').split(" ")
    first = True
    for i, s in enumerate(str_arr):
        if first:
            str_arr[i] = s.capitalize()
        first = True if s[-1:] == '.' else False
    return " ".join(str_arr)

antidote=(s)=>s.split`. `.map(b=>{b=b.replace(/ie/gi,'ei');return b[0].toUpperCase()+b.slice(1).toLowerCase()}).join`. `

antidote("He haD iEght ShOTs of CAffIEne. aFter thaT HE WenT tO SleeP.")
// "He had eight shots of caffeine. After that he went to sleep."

def antivirus(s)
  s |> downcase |> gsub 'ie', 'ei' |> split ?. |> map { @1 |> sub(/\w/) { @1.upcase } } |> join ?.
end

const cleanVirus = (sentence) => sentence.charAt(0).toUpperCase() + sentence.toLowerCase()
                                         .replace(/ie/g, 'ei')
                                         .replace(/[.+]\s\w/g, (str) => `. ${str[str.length -1].toUpperCase()}`)
                                         .slice(1);

def proofread(string):
    if string.rstrip()[:-1].count('.') == 0:    return string.lower().replace('ie','ei').capitalize()
    string= '. '.join([i.lower().replace('ie', 'ei').lstrip().capitalize() for i in string.split('.')])
    if string[-1] == ' ':   return string[:-1]
    else:   return string

<?php

/**
 * Antivirus
 * @param  string $string
 * @return string
 */
function antivirus(string $string): string
{
  return implode(".", array_map(function($sentence) {
    $sentence = str_split($sentence);
    foreach ($sentence as $key => $value) {
      if ($key === 0 && $value === ' ') continue;
      else $sentence[$key] = strtoupper($value); break;
    }
    return implode("",$sentence);
  }, explode(".", str_replace('ie', 'ei', strtolower($string)))));
}


echo antivirus('He haD iEght ShOTs of CAffIEne. aFter thaT HE WenT tO SleeP.');
// Output: He had eight shots of caffeine. After that he went to sleep.

import re

def fix_virus(document):
    doc = document.lower().capitalize()
    return re.sub(r'ie','ei',doc)

fix_virus = lambda doc : re.sub(r'ie','ei',doc.lower().capitalize())

fn solver(sentance: &str) -> String {
    sentance
        .to_ascii_lowercase()
        .replace("ie", "ei")
        .split_whitespace()
        .enumerate()
        .map(|(i, word)| {
            if i == 0 {
                let mut ch = word.chars();
                match ch.next() {
                    None => String::new(),
                    Some(c) => c.to_uppercase().chain(ch).collect(),
                }
            } else {
                word.to_string()
            }
        })
        .collect::<Vec<String>>()
        .join(" ")
}