lsancho

public static IEnumerable<TSource> FromHierarchy<TSource>(
    this TSource source,
    Func<TSource, TSource> nextItem,
    Func<TSource, bool> canContinue)
{
    for (var current = source; canContinue(current); current = nextItem(current))
    {
        yield return current;
    }
}

lsancho

///<sumary>
/// https://en.wikipedia.org/wiki/ISO_3166-1_alpha-2
///</sumary>
public enum Country {
	///<sumary>
	/// Andorra
	///</sumary>
	AD,
	///<sumary>
	/// United Arab Emirates

lsancho

        /// <summary>
        /// Validates ISBN13 codes
        /// </summary>
        /// <param name="isbn13">code to validate</param>
        /// <returns>true, if valid</returns>
        public static bool IsValidIsbn13(string isbn13)
        {
            if (string.IsNullOrEmpty(isbn13))
            {
                return false;

lsancho

using System.Text.RegularExpressions;

namespace Utils.Text
{
	public static class NotAllowedCharacters
	{
		private const string AccentsCharactersAllowed = "áéíóúâêîôûãõàèìòùäëïöüçñÁÉÍÓÚÂÊÎÔÛÃÕÀÈÌÒÙÄËÏÖÜÇÑ`´";
		private const string SpecialCharactersAllowed = "-+÷\\/><=≠.,:;\'\"!¡?¿{}[]()@#*&€$%*°ºª²³⅓⅔⅛⅜⅝⅞_";

		public static bool Contains(string text)

lsancho

{
    "ELO": {
        "005": {
            "kind": "reversivel",
            "reason": "genérica",
            "message": "contate a central do seu cartão"
        },
        "051": {
            "kind": "reversivel",
            "reason": "SALDO/LIMITE INSUFICIENTE",