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Diffstat (limited to 'vendor/ansi_term/examples/256_colours.rs')
-rw-r--r-- | vendor/ansi_term/examples/256_colours.rs | 73 |
1 files changed, 73 insertions, 0 deletions
diff --git a/vendor/ansi_term/examples/256_colours.rs b/vendor/ansi_term/examples/256_colours.rs new file mode 100644 index 000000000..92fe2f1c1 --- /dev/null +++ b/vendor/ansi_term/examples/256_colours.rs @@ -0,0 +1,73 @@ +extern crate ansi_term; +use ansi_term::Colour; + +// This example prints out the 256 colours. +// They're arranged like this: +// +// - 0 to 8 are the eight standard colours. +// - 9 to 15 are the eight bold colours. +// - 16 to 231 are six blocks of six-by-six colour squares. +// - 232 to 255 are shades of grey. + +fn main() { + + // First two lines + for c in 0..8 { + glow(c, c != 0); + print!(" "); + } + print!("\n"); + for c in 8..16 { + glow(c, c != 8); + print!(" "); + } + print!("\n\n"); + + // Six lines of the first three squares + for row in 0..6 { + for square in 0..3 { + for column in 0..6 { + glow(16 + square * 36 + row * 6 + column, row >= 3); + print!(" "); + } + + print!(" "); + } + + print!("\n"); + } + print!("\n"); + + // Six more lines of the other three squares + for row in 0..6 { + for square in 0..3 { + for column in 0..6 { + glow(124 + square * 36 + row * 6 + column, row >= 3); + print!(" "); + } + + print!(" "); + } + + print!("\n"); + } + print!("\n"); + + // The last greyscale lines + for c in 232..=243 { + glow(c, false); + print!(" "); + } + print!("\n"); + for c in 244..=255 { + glow(c, true); + print!(" "); + } + print!("\n"); +} + +fn glow(c: u8, light_bg: bool) { + let base = if light_bg { Colour::Black } else { Colour::White }; + let style = base.on(Colour::Fixed(c)); + print!("{}", style.paint(&format!(" {:3} ", c))); +} |