/// <summary>
/// Validates a <see cref="string" /> that is a path.
/// </summary>
/// <param name="str">The <see cref="string" /> to be validated.</param>
/// <returns>
/// <see langword="true" />, if validation of <paramref name="str" /> succeeded;
/// otherwise, <see langword="false" />.
/// </returns>
public static bool Path(string str)
{
return(str != null && CSharp.Try(() => new FileIOPermission(FileIOPermissionAccess.Read, new[] { str }).Demand()));
}
/// <summary>
/// Validates a <see cref="string" /> that is a web URL with http or https scheme.
/// </summary>
/// <param name="str">The <see cref="string" /> to be validated.</param>
/// <returns>
/// <see langword="true" />, if validation of <paramref name="str" /> succeeded;
/// otherwise, <see langword="false" />.
/// </returns>
public static bool Url(string str)
{
return(Uri.TryCreate(str, UriKind.Absolute, out Uri result) && CSharp.EqualsAny(result.Scheme, "http", "https"));
}
/// <summary>
/// Validates a <see cref="string" /> that is a path.
/// </summary>
/// <param name="str">The <see cref="string" /> to be validated.</param>
/// <returns>
/// <see langword="true" />, if validation of <paramref name="str" /> succeeded;
/// otherwise, <see langword="false" />.
/// </returns>
public static bool Path(string str)
{
return(str != null && CSharp.Try(() => new FileIOPermission(FileIOPermissionAccess.Read, SingletonCollection.Array(str)).Demand()));
}