86 lines
1.8 KiB
Rust
86 lines
1.8 KiB
Rust
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// 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(ioivec::buf_writer writer) { writer.write(~[0x1bu8, '[' as u8]); }
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fn reset(ioivec::buf_writer writer) {
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esc(writer);
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writer.write(~['0' as u8, 'm' as u8]);
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}
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fn color_supported() -> bool {
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auto supported_terms = ~["xterm-color", "xterm", "screen-bce"];
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ret alt (generic_os::getenv("TERM")) {
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case (option::some(?env)) {
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for (str term in supported_terms) {
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if (str::eq(term, env)) { true }
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}
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false
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}
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case (option::none) { false }
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};
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}
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fn set_color(ioivec::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) { writer.write(~['1' as u8, ';' as u8]); color -= 8u8; }
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writer.write(~[first_char, ('0' as u8) + color, 'm' as u8]);
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}
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fn fg(ioivec::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(ioivec::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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// Local Variables:
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// fill-column: 78;
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// indent-tabs-mode: nil
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// c-basic-offset: 4
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// buffer-file-coding-system: utf-8-unix
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// compile-command: "make -k -C $RBUILD 2>&1 | sed -e 's/\\/x\\//x:\\//g'";
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// End:
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