diff options
-rw-r--r-- | src/app.rs | 11 | ||||
-rw-r--r-- | termcolor/src/lib.rs | 271 |
2 files changed, 260 insertions, 22 deletions
@@ -288,7 +288,16 @@ lazy_static! { color settings for {type}.\n\nFor example, the following \ command will change the match color to magenta and the \ background color for line numbers to yellow:\n\n\ - rg --colors 'match:fg:magenta' --colors 'line:bg:yellow' foo."); + rg --colors 'match:fg:magenta' --colors 'line:bg:yellow' foo.\n\n\ + Extended colors can be used for {value} when the terminal \ + supports ANSI color sequences. These are specified as either \ + 'x' (256-color) or 'x,x,x' (24-bit truecolor) where x is a \ + number between 0 and 255 inclusive. \n\nFor example, the \ + following command will change the match background color to that \ + represented by the rgb value (0,128,255):\n\n\ + rg --colors 'match:bg:0,128,255'\n\nNote that the the intense \ + and nointense style flags will have no effect when used \ + alongside these extended color codes."); doc!(h, "encoding", "Specify the text encoding of files to search.", "Specify the text encoding that ripgrep will use on all files \ diff --git a/termcolor/src/lib.rs b/termcolor/src/lib.rs index 94cc0bfe..769029b1 100644 --- a/termcolor/src/lib.rs +++ b/termcolor/src/lib.rs @@ -1006,6 +1006,60 @@ impl<W: io::Write> Ansi<W> { } } } + macro_rules! write_var_ansi_code { + ($pre:expr, $($code:expr),+) => {{ + // The loop generates at worst a literal of the form + // '255,255,255m' which is 12-bytes. + // The largest `pre` expression we currently use is 7 bytes. + // This gives us the maximum of 19-bytes for our work buffer. + let pre_len = $pre.len(); + assert!(pre_len <= 7); + let mut fmt = [0u8; 19]; + fmt[..pre_len].copy_from_slice($pre); + let mut i = pre_len - 1; + $( + let c1: u8 = ($code / 100) % 10; + let c2: u8 = ($code / 10) % 10; + let c3: u8 = $code % 10; + let mut printed = false; + + if c1 != 0 { + printed = true; + i += 1; + fmt[i] = b'0' + c1; + } + if c2 != 0 || printed { + i += 1; + fmt[i] = b'0' + c2; + } + // If we received a zero value we must still print a value. + i += 1; + fmt[i] = b'0' + c3; + i += 1; + fmt[i] = b';'; + )+ + + fmt[i] = b'm'; + self.write_all(&fmt[0..i+1]) + }} + } + macro_rules! write_custom { + ($ansi256:expr) => { + if fg { + write_var_ansi_code!(b"\x1B[38;5;", $ansi256) + } else { + write_var_ansi_code!(b"\x1B[48;5;", $ansi256) + } + }; + + ($r:expr, $g:expr, $b:expr) => {{ + if fg { + write_var_ansi_code!(b"\x1B[38;2;", $r, $g, $b) + } else { + write_var_ansi_code!(b"\x1B[48;2;", $r, $g, $b) + } + }}; + } if intense { match *c { Color::Black => write_intense!("8"), @@ -1016,6 +1070,8 @@ impl<W: io::Write> Ansi<W> { Color::Magenta => write_intense!("13"), Color::Yellow => write_intense!("11"), Color::White => write_intense!("15"), + Color::Ansi256(c) => write_custom!(c), + Color::Rgb(r, g, b) => write_custom!(r, g, b), Color::__Nonexhaustive => unreachable!(), } } else { @@ -1028,6 +1084,8 @@ impl<W: io::Write> Ansi<W> { Color::Magenta => write_normal!("5"), Color::Yellow => write_normal!("3"), Color::White => write_normal!("7"), + Color::Ansi256(c) => write_custom!(c), + Color::Rgb(r, g, b) => write_custom!(r, g, b), Color::__Nonexhaustive => unreachable!(), } } @@ -1212,17 +1270,28 @@ impl ColorSpec { use wincolor::Intense; let intense = if self.intense { Intense::Yes } else { Intense::No }; - if let Some(color) = self.fg_color.as_ref().map(|c| c.to_windows()) { + + let fg_color = self.fg_color.as_ref().and_then(|c| c.to_windows()); + if let Some(color) = fg_color { console.fg(intense, color)?; } - if let Some(color) = self.bg_color.as_ref().map(|c| c.to_windows()) { + + let bg_color = self.bg_color.as_ref().and_then(|c| c.to_windows()); + if let Some(color) = bg_color { console.bg(intense, color)?; } Ok(()) } } -/// The set of available English colors for the terminal foreground/background. +/// The set of available colors for the terminal foreground/background. +/// +/// The `Ansi256` and `Rgb` colors will only output the correct codes when +/// paired with the `Ansi` `WriteColor` implementation. +/// +/// The `Ansi256` and `Rgb` color types are not supported when writing colors +/// on Windows using the console. If they are used on Windows, then they are +/// silently ignored and no colors will be emitted. /// /// Note that this set may expand over time. #[allow(missing_docs)] @@ -1236,6 +1305,8 @@ pub enum Color { Magenta, Yellow, White, + Ansi256(u8), + Rgb(u8, u8, u8), #[doc(hidden)] __Nonexhaustive, } @@ -1243,39 +1314,74 @@ pub enum Color { #[cfg(windows)] impl Color { /// Translate this color to a wincolor::Color. - fn to_windows(&self) -> wincolor::Color { + fn to_windows(&self) -> Option<wincolor::Color> { match *self { - Color::Black => wincolor::Color::Black, - Color::Blue => wincolor::Color::Blue, - Color::Green => wincolor::Color::Green, - Color::Red => wincolor::Color::Red, - Color::Cyan => wincolor::Color::Cyan, - Color::Magenta => wincolor::Color::Magenta, - Color::Yellow => wincolor::Color::Yellow, - Color::White => wincolor::Color::White, + Color::Black => Some(wincolor::Color::Black), + Color::Blue => Some(wincolor::Color::Blue), + Color::Green => Some(wincolor::Color::Green), + Color::Red => Some(wincolor::Color::Red), + Color::Cyan => Some(wincolor::Color::Cyan), + Color::Magenta => Some(wincolor::Color::Magenta), + Color::Yellow => Some(wincolor::Color::Yellow), + Color::White => Some(wincolor::Color::White), + Color::Ansi256(_) => None, + Color::Rgb(_, _, _) => None, Color::__Nonexhaustive => unreachable!(), } } } -/// An error from parsing an invalid color name. +/// An error from parsing an invalid color specification. #[derive(Clone, Debug, Eq, PartialEq)] -pub struct ParseColorError(String); +pub struct ParseColorError { + kind: ParseColorErrorKind, + given: String, +} + +#[derive(Clone, Debug, Eq, PartialEq)] +enum ParseColorErrorKind { + InvalidName, + InvalidAnsi256, + InvalidRgb, +} impl ParseColorError { /// Return the string that couldn't be parsed as a valid color. - pub fn invalid(&self) -> &str { &self.0 } + pub fn invalid(&self) -> &str { &self.given } } impl error::Error for ParseColorError { - fn description(&self) -> &str { "unrecognized color name" } + fn description(&self) -> &str { + use self::ParseColorErrorKind::*; + match self.kind { + InvalidName => "unrecognized color name", + InvalidAnsi256 => "invalid ansi256 color number", + InvalidRgb => "invalid RGB color triple", + } + } } impl fmt::Display for ParseColorError { fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result { - write!(f, "Unrecognized color name '{}'. Choose from: \ - black, blue, green, red, cyan, magenta, yellow, white.", - self.0) + use self::ParseColorErrorKind::*; + match self.kind { + InvalidName => { + write!(f, "unrecognized color name '{}'. Choose from: \ + black, blue, green, red, cyan, magenta, yellow, \ + white", + self.given) + } + InvalidAnsi256 => { + write!(f, "unrecognized ansi256 color number, \ + should be '[0-255]', but is '{}'", + self.given) + } + InvalidRgb => { + write!(f, "unrecognized RGB color triple, \ + should be '[0-255],[0-255],[0-255]', but is '{}'", + self.given) + } + } } } @@ -1292,7 +1398,52 @@ impl FromStr for Color { "magenta" => Ok(Color::Magenta), "yellow" => Ok(Color::Yellow), "white" => Ok(Color::White), - _ => Err(ParseColorError(s.to_string())), + _ => { + // - Ansi256: '[0-255]' + // - Rgb: '[0-255],[0-255],[0-255]' + let codes: Vec<&str> = s.split(',').collect(); + if codes.len() == 1 { + if let Ok(n) = codes[0].parse::<u8>() { + Ok(Color::Ansi256(n)) + } else { + if s.chars().all(|c| c.is_digit(10)) { + Err(ParseColorError { + kind: ParseColorErrorKind::InvalidAnsi256, + given: s.to_string(), + }) + } else { + Err(ParseColorError { + kind: ParseColorErrorKind::InvalidName, + given: s.to_string(), + }) + } + } + } else if codes.len() == 3 { + let mut v = vec![]; + for code in codes { + let n = code.parse::<u8>().map_err(|_| { + ParseColorError { + kind: ParseColorErrorKind::InvalidRgb, + given: s.to_string(), + } + })?; + v.push(n); + } + Ok(Color::Rgb(v[0], v[1], v[2])) + } else { + Err(if s.contains(",") { + ParseColorError { + kind: ParseColorErrorKind::InvalidRgb, + given: s.to_string(), + } + } else { + ParseColorError { + kind: ParseColorErrorKind::InvalidName, + given: s.to_string(), + } + }) + } + } } } } @@ -1377,7 +1528,9 @@ fn write_lossy_utf8<W: io::Write>(mut w: W, buf: &[u8]) -> io::Result<usize> { #[cfg(test)] mod tests { - use super::StandardStream; + use super::{ + Ansi, Color, ParseColorError, ParseColorErrorKind, StandardStream, + }; fn assert_is_send<T: Send>() {} @@ -1385,4 +1538,80 @@ mod tests { fn standard_stream_is_send() { assert_is_send::<StandardStream>(); } + + #[test] + fn test_simple_parse_ok() { + let color = "green".parse::<Color>(); + assert_eq!(color, Ok(Color::Green)); + } + + #[test] + fn test_256_parse_ok() { + let color = "7".parse::<Color>(); + assert_eq!(color, Ok(Color::Ansi256(7))); + + // In range of standard color codes + let color = "32".parse::<Color>(); + assert_eq!(color, Ok(Color::Ansi256(32))); + } + + #[test] + fn test_256_parse_err_out_of_range() { + let color = "256".parse::<Color>(); + assert_eq!(color, Err(ParseColorError { + kind: ParseColorErrorKind::InvalidAnsi256, + given: "256".to_string(), + })); + } + + #[test] + fn test_rgb_parse_ok() { + let color = "0,0,0".parse::<Color>(); + assert_eq!(color, Ok(Color::Rgb(0, 0, 0))); + + let color = "0,128,255".parse::<Color>(); + assert_eq!(color, Ok(Color::Rgb(0, 128, 255))); + } + + #[test] + fn test_rgb_parse_err_out_of_range() { + let color = "0,0,256".parse::<Color>(); + assert_eq!(color, Err(ParseColorError { + kind: ParseColorErrorKind::InvalidRgb, + given: "0,0,256".to_string(), + })); + } + + #[test] + fn test_rgb_parse_err_bad_format() { + let color = "0,0".parse::<Color>(); + assert_eq!(color, Err(ParseColorError { + kind: ParseColorErrorKind::InvalidRgb, + given: "0,0".to_string(), + })); + + let color = "not_a_color".parse::<Color>(); + assert_eq!(color, Err(ParseColorError { + kind: ParseColorErrorKind::InvalidName, + given: "not_a_color".to_string(), + })); + } + + #[test] + fn test_var_ansi_write_rgb() { + let mut buf = Ansi::new(vec![]); + let _ = buf.write_color(true, &Color::Rgb(254, 253, 255), false); + assert_eq!(buf.0, b"\x1B[38;2;254;253;255m"); + } + + #[test] + fn test_var_ansi_write_256() { + let mut buf = Ansi::new(vec![]); + let _ = buf.write_color(false, &Color::Ansi256(7), false); + assert_eq!(buf.0, b"\x1B[48;5;7m"); + + let mut buf = Ansi::new(vec![]); + let _ = buf.write_color(false, &Color::Ansi256(208), false); + assert_eq!(buf.0, b"\x1B[48;5;208m"); + } } |