using System;
using System.Linq;
namespace ExtremelySimpleLogger {
///
/// A set of extension methods for logging-related activities, like converting to ANSI color codes.
///
public static class Extensions {
private static readonly int[] AnsiCodes = new[] {
ConsoleColor.Black, ConsoleColor.DarkRed, ConsoleColor.DarkGreen, ConsoleColor.DarkYellow,
ConsoleColor.DarkBlue, ConsoleColor.DarkMagenta, ConsoleColor.DarkCyan, ConsoleColor.Gray,
ConsoleColor.DarkGray, ConsoleColor.Red, ConsoleColor.Green, ConsoleColor.Yellow,
ConsoleColor.Blue, ConsoleColor.Magenta, ConsoleColor.Cyan, ConsoleColor.White
}.Select((s, i) => (int) s).ToArray();
///
/// Converts the given to its ANSI escape sequence representation. If the supplied is , the reset escape sequence for the given color type will be returned.
///
/// The color. If , the reset escape sequence for the given color type will be returned.
/// Whether to return a background color. If this is , a foreground color is returned instead.
/// The ANSI escape sequence representation of the given .
/// If the is not in defined range.
public static string ToAnsiCode(this ConsoleColor? color, bool background = false) {
if (color.HasValue) {
if (color < 0 || (int) color >= Extensions.AnsiCodes.Length)
throw new ArgumentOutOfRangeException(nameof(color), color, null);
return $"\x1B[{(background ? 48 : 38)};5;{Extensions.AnsiCodes[(int) color]}m";
}
return $"\x1B[{(background ? 49 : 39)}m";
}
///
/// Wraps the given string in the ANSI escape sequence representation of the given and the appropriate reset escape sequence using .
///
/// The string to wrap.
/// The color.
/// Whether to use as a background color. If this is , a foreground color is used instead.
/// The given string, wrapped in ANSI color codes.
public static string WrapAnsiCode(this string s, ConsoleColor color, bool background = false) {
return Extensions.ToAnsiCode(color, background) + s + Extensions.ToAnsiCode(null, background);
}
}
}