d-colorize/source/colorize.d
yamadapc 4a227f46c1 Add build status badge and bump version.
I'm doing this simply to have the cleaned-up in the registry.
2014-07-10 00:06:21 -03:00

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D

/**
* Authors: Pedro Tacla Yamada
* Date: June 9, 2014
* License: Licensed under the MIT license. See LICENSE for more information
* Version: 0.0.2
*/
import std.string : format;
// Foreground colors
static enum fg : int
{
init = 39,
black = 30,
red = 31,
green = 32,
yellow = 33,
blue = 34,
magenta = 35,
cyan = 36,
white = 37,
light_black = 90,
light_red = 91,
light_green = 92,
light_yellow = 93,
light_blue = 94,
light_magenta = 95,
light_cyan = 96,
light_white = 97
}
// Background colors
static enum bg : int
{
init = 49,
black = 40,
red = 41,
green = 42,
yellow = 43,
blue = 44,
magenta = 45,
cyan = 46,
white = 47,
light_black = 100,
light_red = 101,
light_green = 102,
light_yellow = 103,
light_blue = 104,
light_magenta = 105,
light_cyan = 106,
light_white = 107
}
// Text modes
static enum mode : int
{
init = 0,
bold = 1,
underline = 4,
blink = 5,
swap = 7,
hide = 8
}
/**
* Wraps a string around color escape sequences.
*
* Params:
* str = The string to wrap with colors and modes
* c = The foreground color (see the fg enum type)
* b = The background color (see the bg enum type)
* m = The text mode (see the mode enum type)
* Example:
* ---
* writeln("This is blue".colorize(fg.blue));
* writeln(
* colorize("This is red over green blinking", fg.blue, bg.green, mode.blink)
* );
* ---
*/
string colorize(string str, fg c, bg b=bg.init, mode m=mode.init)
pure
{
return format("\033[%d;%d;%dm%s\033[0m", m, c, b, str);
}
unittest
{
import std.stdio;
string ret;
ret = "This is yellow".colorize(fg.yellow);
writeln(ret);
assert(ret == "\033[0;33;49mThis is yellow\033[0m");
ret = "This is light green".colorize(fg.light_green);
writeln(ret);
assert(ret == "\033[0;92;49mThis is light green\033[0m");
ret = "This is light blue with red background".colorize(fg.light_blue, bg.red);
writeln(ret);
assert(ret == "\033[0;94;41mThis is light blue with red background\033[0m");
ret = "This is red on blue blinking".colorize(fg.red, bg.blue, mode.blink);
writeln(ret);
assert(ret == "\033[5;31;44mThis is red on blue blinking\033[0m");
}