59 lines
1.4 KiB
Rust
59 lines
1.4 KiB
Rust
// Simple ANSI color library.
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//
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// TODO: Windows support.
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const u8 color_black = 0u8;
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const u8 color_red = 1u8;
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const u8 color_green = 2u8;
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const u8 color_yellow = 3u8;
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const u8 color_blue = 4u8;
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const u8 color_magenta = 5u8;
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const u8 color_cyan = 6u8;
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const u8 color_light_gray = 7u8;
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const u8 color_light_grey = 7u8;
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const u8 color_dark_gray = 8u8;
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const u8 color_dark_grey = 8u8;
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const u8 color_bright_red = 9u8;
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const u8 color_bright_green = 10u8;
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const u8 color_bright_yellow = 11u8;
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const u8 color_bright_blue = 12u8;
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const u8 color_bright_magenta = 13u8;
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const u8 color_bright_cyan = 14u8;
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const u8 color_bright_white = 15u8;
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fn esc(io.buf_writer writer) {
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writer.write(vec(0x1bu8, '[' as u8));
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}
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fn reset(io.buf_writer writer) {
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esc(writer);
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writer.write(vec('0' as u8, 'm' as u8));
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}
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fn color_supported() -> bool {
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ret _str.eq(GenericOS.getenv("TERM"), "xterm-color");
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}
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fn set_color(io.buf_writer writer, u8 first_char, u8 color) {
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assert (color < 16u8);
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esc(writer);
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if (color >= 8u8) {
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writer.write(vec('1' as u8, ';' as u8));
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color -= 8u8;
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}
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writer.write(vec(first_char, ('0' as u8) + color, 'm' as u8));
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}
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fn fg(io.buf_writer writer, u8 color) {
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ret set_color(writer, '3' as u8, color);
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}
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fn bg(io.buf_writer writer, u8 color) {
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ret set_color(writer, '4' as u8, color);
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}
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// export fg;
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// export bg;
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