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// Simple ANSI color library.
//
// TODO: Windows support.
const color_black: u8 = 0u8;
const color_red: u8 = 1u8;
const color_green: u8 = 2u8;
const color_yellow: u8 = 3u8;
const color_blue: u8 = 4u8;
const color_magenta: u8 = 5u8;
const color_cyan: u8 = 6u8;
const color_light_gray: u8 = 7u8;
const color_light_grey: u8 = 7u8;
const color_dark_gray: u8 = 8u8;
const color_dark_grey: u8 = 8u8;
const color_bright_red: u8 = 9u8;
const color_bright_green: u8 = 10u8;
const color_bright_yellow: u8 = 11u8;
const color_bright_blue: u8 = 12u8;
const color_bright_magenta: u8 = 13u8;
const color_bright_cyan: u8 = 14u8;
const color_bright_white: u8 = 15u8;
fn esc(writer: io::buf_writer) { writer.write([0x1bu8, '[' as u8]); }
fn reset(writer: io::buf_writer) {
esc(writer);
writer.write(['0' as u8, 'm' as u8]);
}
fn color_supported() -> bool {
let supported_terms = ["xterm-color", "xterm", "screen-bce"];
ret alt generic_os::getenv("TERM") {
option::some(env) {
for term: str in supported_terms {
if str::eq(term, env) { ret true; }
}
false
}
option::none. { false }
};
}
fn set_color(writer: io::buf_writer, first_char: u8, color: u8) {
assert (color < 16u8);
esc(writer);
if color >= 8u8 { writer.write(['1' as u8, ';' as u8]); color -= 8u8; }
writer.write([first_char, ('0' as u8) + color, 'm' as u8]);
}
fn fg(writer: io::buf_writer, color: u8) {
ret set_color(writer, '3' as u8, color);
}
fn bg(writer: io::buf_writer, color: u8) {
ret set_color(writer, '4' as u8, color);
}
// export fg;
// export bg;
// Local Variables:
// fill-column: 78;
// indent-tabs-mode: nil
// c-basic-offset: 4
// buffer-file-coding-system: utf-8-unix
// compile-command: "make -k -C $RBUILD 2>&1 | sed -e 's/\\/x\\//x:\\//g'";
// End:
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