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- /* Write a program to extract all email addresses from given text.
- * The text comes at the first input line.
- * Print the emails in the output, each at a separate line.
- * Emails are considered to be in format <user>@<host>, where:
- * <user> is a sequence of letters and digits, where '.', '-' and '_' can appear between them.
- * Examples of valid users: "stephan", "mike03", "s.johnson", "st_steward", "softuni-bulgaria",
- * "12345". Examples of invalid users: ''--123", ".....", "nakov_-", "_steve", ".info".
- * <host> is a sequence of at least two words, separated by dots '.'.
- * Each word is sequence of letters and can have hyphens '-' between the letters.
- * Examples of hosts: "softuni.bg", "software-university.com", "intoprogramming.info",
- * "mail.softuni.org". Examples of invalid hosts: "helloworld", ".unknown.soft.",
- * "invalid-host-", "invalid-".
- * Example of valid emails: info@softuni-bulgaria.org, kiki@hotmail.co.uk,
- * no-reply@github.com, s.peterson@mail.uu.net, info-bg@software-university.software.academy. */
- namespace _03.ExtractEmails
- {
- using System;
- using System.Text.RegularExpressions;
- class ExtractEmails
- {
- static void Main(string[] args)
- {
- string text = Console.ReadLine();
- string pattern = @"[A-Za-z]+[.-_]*[A-Za-z]+@[A-Za-z]+[-]*[.A-Za-z]+[A-Za-z]";
- MatchCollection matches = Regex.Matches(text, pattern);
- foreach (Match match in matches)
- {
- Console.WriteLine(match);
- }
- }
- }
- }
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