aa25f22f19
This giant commit changes the syntax of Rust to use "assert" for "check" expressions that didn't mean anything to the typestate system, and continue using "check" for checks that are used as part of typestate checking. Most of the changes are just replacing "check" with "assert" in test cases and rustc.
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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