mirror of
https://github.com/danbulant/nushell
synced 2026-06-12 03:01:04 +00:00
405 lines
23 KiB
Rust
405 lines
23 KiB
Rust
use lazy_static::lazy_static;
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use nu_ansi_term::*;
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use nu_engine::CallExt;
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use nu_protocol::{
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ast::Call, engine::Command, Category, Example, IntoInterruptiblePipelineData, IntoPipelineData,
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PipelineData, ShellError, Signature, Span, SyntaxShape, Value,
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};
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use std::collections::HashMap;
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#[derive(Clone)]
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pub struct AnsiCommand;
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struct AnsiCode {
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short_name: Option<&'static str>,
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long_name: &'static str,
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code: String,
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}
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lazy_static! {
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static ref CODE_LIST: Vec<AnsiCode> = vec!{
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AnsiCode{ short_name: Some("g"), long_name: "green", code: Color::Green.prefix().to_string()},
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AnsiCode{ short_name: Some("gb"), long_name: "green_bold", code: Color::Green.bold().prefix().to_string()},
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AnsiCode{ short_name: Some("gu"), long_name: "green_underline", code: Color::Green.underline().prefix().to_string()},
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AnsiCode{ short_name: Some("gi"), long_name: "green_italic", code: Color::Green.italic().prefix().to_string()},
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AnsiCode{ short_name: Some("gd"), long_name: "green_dimmed", code: Color::Green.dimmed().prefix().to_string()},
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AnsiCode{ short_name: Some("gr"), long_name: "green_reverse", code: Color::Green.reverse().prefix().to_string()},
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AnsiCode{ short_name: Some("lg"), long_name: "light_green", code: Color::LightGreen.prefix().to_string()},
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AnsiCode{ short_name: Some("lgb"), long_name: "light_green_bold", code: Color::LightGreen.bold().prefix().to_string()},
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AnsiCode{ short_name: Some("lgu"), long_name: "light_green_underline", code: Color::LightGreen.underline().prefix().to_string()},
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AnsiCode{ short_name: Some("lgi"), long_name: "light_green_italic", code: Color::LightGreen.italic().prefix().to_string()},
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AnsiCode{ short_name: Some("lgd"), long_name: "light_green_dimmed", code: Color::LightGreen.dimmed().prefix().to_string()},
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AnsiCode{ short_name: Some("lgr"), long_name: "light_green_reverse", code: Color::LightGreen.reverse().prefix().to_string()},
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AnsiCode{ short_name: Some("r"), long_name: "red", code: Color::Red.prefix().to_string()},
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AnsiCode{ short_name: Some("rb"), long_name: "red_bold", code: Color::Red.bold().prefix().to_string()},
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AnsiCode{ short_name: Some("ru"), long_name: "red_underline", code: Color::Red.underline().prefix().to_string()},
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AnsiCode{ short_name: Some("ri"), long_name: "red_italic", code: Color::Red.italic().prefix().to_string()},
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AnsiCode{ short_name: Some("rd"), long_name: "red_dimmed", code: Color::Red.dimmed().prefix().to_string()},
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AnsiCode{ short_name: Some("rr"), long_name: "red_reverse", code: Color::Red.reverse().prefix().to_string()},
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AnsiCode{ short_name: Some("lr"), long_name: "light_red", code: Color::LightRed.prefix().to_string()},
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AnsiCode{ short_name: Some("lrb"), long_name: "light_red_bold", code: Color::LightRed.bold().prefix().to_string()},
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AnsiCode{ short_name: Some("lru"), long_name: "light_red_underline", code: Color::LightRed.underline().prefix().to_string()},
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AnsiCode{ short_name: Some("lri"), long_name: "light_red_italic", code: Color::LightRed.italic().prefix().to_string()},
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AnsiCode{ short_name: Some("lrd"), long_name: "light_red_dimmed", code: Color::LightRed.dimmed().prefix().to_string()},
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AnsiCode{ short_name: Some("lrr"), long_name: "light_red_reverse", code: Color::LightRed.reverse().prefix().to_string()},
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AnsiCode{ short_name: Some("u"), long_name: "blue", code: Color::Blue.prefix().to_string()},
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AnsiCode{ short_name: Some("ub"), long_name: "blue_bold", code: Color::Blue.bold().prefix().to_string()},
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AnsiCode{ short_name: Some("uu"), long_name: "blue_underline", code: Color::Blue.underline().prefix().to_string()},
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AnsiCode{ short_name: Some("ui"), long_name: "blue_italic", code: Color::Blue.italic().prefix().to_string()},
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AnsiCode{ short_name: Some("ud"), long_name: "blue_dimmed", code: Color::Blue.dimmed().prefix().to_string()},
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AnsiCode{ short_name: Some("ur"), long_name: "blue_reverse", code: Color::Blue.reverse().prefix().to_string()},
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AnsiCode{ short_name: Some("lu"), long_name: "light_blue", code: Color::LightBlue.prefix().to_string()},
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AnsiCode{ short_name: Some("lub"), long_name: "light_blue_bold", code: Color::LightBlue.bold().prefix().to_string()},
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AnsiCode{ short_name: Some("luu"), long_name: "light_blue_underline", code: Color::LightBlue.underline().prefix().to_string()},
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AnsiCode{ short_name: Some("lui"), long_name: "light_blue_italic", code: Color::LightBlue.italic().prefix().to_string()},
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AnsiCode{ short_name: Some("lud"), long_name: "light_blue_dimmed", code: Color::LightBlue.dimmed().prefix().to_string()},
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AnsiCode{ short_name: Some("lur"), long_name: "light_blue_reverse", code: Color::LightBlue.reverse().prefix().to_string()},
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AnsiCode{ short_name: Some("b"), long_name: "black", code: Color::Black.prefix().to_string()},
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AnsiCode{ short_name: Some("bb"), long_name: "black_bold", code: Color::Black.bold().prefix().to_string()},
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AnsiCode{ short_name: Some("bu"), long_name: "black_underline", code: Color::Black.underline().prefix().to_string()},
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AnsiCode{ short_name: Some("bi"), long_name: "black_italic", code: Color::Black.italic().prefix().to_string()},
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AnsiCode{ short_name: Some("bd"), long_name: "black_dimmed", code: Color::Black.dimmed().prefix().to_string()},
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AnsiCode{ short_name: Some("br"), long_name: "black_reverse", code: Color::Black.reverse().prefix().to_string()},
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AnsiCode{ short_name: Some("ligr"), long_name: "light_gray", code: Color::LightGray.prefix().to_string()},
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AnsiCode{ short_name: Some("ligrb"), long_name: "light_gray_bold", code: Color::LightGray.bold().prefix().to_string()},
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AnsiCode{ short_name: Some("ligru"), long_name: "light_gray_underline", code: Color::LightGray.underline().prefix().to_string()},
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AnsiCode{ short_name: Some("ligri"), long_name: "light_gray_italic", code: Color::LightGray.italic().prefix().to_string()},
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AnsiCode{ short_name: Some("ligrd"), long_name: "light_gray_dimmed", code: Color::LightGray.dimmed().prefix().to_string()},
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AnsiCode{ short_name: Some("ligrr"), long_name: "light_gray_reverse", code: Color::LightGray.reverse().prefix().to_string()},
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AnsiCode{ short_name: Some("y"), long_name: "yellow", code: Color::Yellow.prefix().to_string()},
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AnsiCode{ short_name: Some("yb"), long_name: "yellow_bold", code: Color::Yellow.bold().prefix().to_string()},
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AnsiCode{ short_name: Some("yu"), long_name: "yellow_underline", code: Color::Yellow.underline().prefix().to_string()},
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AnsiCode{ short_name: Some("yi"), long_name: "yellow_italic", code: Color::Yellow.italic().prefix().to_string()},
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AnsiCode{ short_name: Some("yd"), long_name: "yellow_dimmed", code: Color::Yellow.dimmed().prefix().to_string()},
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AnsiCode{ short_name: Some("yr"), long_name: "yellow_reverse", code: Color::Yellow.reverse().prefix().to_string()},
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AnsiCode{ short_name: Some("ly"), long_name: "light_yellow", code: Color::LightYellow.prefix().to_string()},
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AnsiCode{ short_name: Some("lyb"), long_name: "light_yellow_bold", code: Color::LightYellow.bold().prefix().to_string()},
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AnsiCode{ short_name: Some("lyu"), long_name: "light_yellow_underline", code: Color::LightYellow.underline().prefix().to_string()},
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AnsiCode{ short_name: Some("lyi"), long_name: "light_yellow_italic", code: Color::LightYellow.italic().prefix().to_string()},
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AnsiCode{ short_name: Some("lyd"), long_name: "light_yellow_dimmed", code: Color::LightYellow.dimmed().prefix().to_string()},
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AnsiCode{ short_name: Some("lyr"), long_name: "light_yellow_reverse", code: Color::LightYellow.reverse().prefix().to_string()},
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AnsiCode{ short_name: Some("p"), long_name: "purple", code: Color::Purple.prefix().to_string()},
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AnsiCode{ short_name: Some("pb"), long_name: "purple_bold", code: Color::Purple.bold().prefix().to_string()},
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AnsiCode{ short_name: Some("pu"), long_name: "purple_underline", code: Color::Purple.underline().prefix().to_string()},
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AnsiCode{ short_name: Some("pi"), long_name: "purple_italic", code: Color::Purple.italic().prefix().to_string()},
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AnsiCode{ short_name: Some("pd"), long_name: "purple_dimmed", code: Color::Purple.dimmed().prefix().to_string()},
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AnsiCode{ short_name: Some("pr"), long_name: "purple_reverse", code: Color::Purple.reverse().prefix().to_string()},
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AnsiCode{ short_name: Some("lp"), long_name: "light_purple", code: Color::LightPurple.prefix().to_string()},
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AnsiCode{ short_name: Some("lpb"), long_name: "light_purple_bold", code: Color::LightPurple.bold().prefix().to_string()},
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AnsiCode{ short_name: Some("lpu"), long_name: "light_purple_underline", code: Color::LightPurple.underline().prefix().to_string()},
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AnsiCode{ short_name: Some("lpi"), long_name: "light_purple_italic", code: Color::LightPurple.italic().prefix().to_string()},
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AnsiCode{ short_name: Some("lpd"), long_name: "light_purple_dimmed", code: Color::LightPurple.dimmed().prefix().to_string()},
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AnsiCode{ short_name: Some("lpr"), long_name: "light_purple_reverse", code: Color::LightPurple.reverse().prefix().to_string()},
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AnsiCode{ short_name: Some("c"), long_name: "cyan", code: Color::Cyan.prefix().to_string()},
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AnsiCode{ short_name: Some("cb"), long_name: "cyan_bold", code: Color::Cyan.bold().prefix().to_string()},
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AnsiCode{ short_name: Some("cu"), long_name: "cyan_underline", code: Color::Cyan.underline().prefix().to_string()},
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AnsiCode{ short_name: Some("ci"), long_name: "cyan_italic", code: Color::Cyan.italic().prefix().to_string()},
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AnsiCode{ short_name: Some("cd"), long_name: "cyan_dimmed", code: Color::Cyan.dimmed().prefix().to_string()},
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AnsiCode{ short_name: Some("cr"), long_name: "cyan_reverse", code: Color::Cyan.reverse().prefix().to_string()},
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AnsiCode{ short_name: Some("lc"), long_name: "light_cyan", code: Color::LightCyan.prefix().to_string()},
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AnsiCode{ short_name: Some("lcb"), long_name: "light_cyan_bold", code: Color::LightCyan.bold().prefix().to_string()},
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AnsiCode{ short_name: Some("lcu"), long_name: "light_cyan_underline", code: Color::LightCyan.underline().prefix().to_string()},
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AnsiCode{ short_name: Some("lci"), long_name: "light_cyan_italic", code: Color::LightCyan.italic().prefix().to_string()},
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AnsiCode{ short_name: Some("lcd"), long_name: "light_cyan_dimmed", code: Color::LightCyan.dimmed().prefix().to_string()},
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AnsiCode{ short_name: Some("lcr"), long_name: "light_cyan_reverse", code: Color::LightCyan.reverse().prefix().to_string()},
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AnsiCode{ short_name: Some("w"), long_name: "white", code: Color::White.prefix().to_string()},
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AnsiCode{ short_name: Some("wb"), long_name: "white_bold", code: Color::White.bold().prefix().to_string()},
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AnsiCode{ short_name: Some("wu"), long_name: "white_underline", code: Color::White.underline().prefix().to_string()},
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AnsiCode{ short_name: Some("wi"), long_name: "white_italic", code: Color::White.italic().prefix().to_string()},
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AnsiCode{ short_name: Some("wd"), long_name: "white_dimmed", code: Color::White.dimmed().prefix().to_string()},
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AnsiCode{ short_name: Some("wr"), long_name: "white_reverse", code: Color::White.reverse().prefix().to_string()},
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AnsiCode{ short_name: Some("dgr"), long_name: "dark_gray", code: Color::DarkGray.prefix().to_string()},
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AnsiCode{ short_name: Some("dgrb"), long_name: "dark_gray_bold", code: Color::DarkGray.bold().prefix().to_string()},
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AnsiCode{ short_name: Some("dgru"), long_name: "dark_gray_underline", code: Color::DarkGray.underline().prefix().to_string()},
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AnsiCode{ short_name: Some("dgri"), long_name: "dark_gray_italic", code: Color::DarkGray.italic().prefix().to_string()},
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AnsiCode{ short_name: Some("dgrd"), long_name: "dark_gray_dimmed", code: Color::DarkGray.dimmed().prefix().to_string()},
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AnsiCode{ short_name: Some("dgrr"), long_name: "dark_gray_reverse", code: Color::DarkGray.reverse().prefix().to_string()},
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AnsiCode{ short_name: None, long_name: "reset", code: "\x1b[0m".to_owned()},
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// Reference for ansi codes https://gist.github.com/fnky/458719343aabd01cfb17a3a4f7296797
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// Another good reference http://ascii-table.com/ansi-escape-sequences.php
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// For setting title like `echo [(char title) (pwd) (char bel)] | str collect`
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AnsiCode{short_name: None, long_name:"title", code: "\x1b]2;".to_string()}, // ESC]2; xterm sets window title using OSC syntax escapes
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// Ansi Erase Sequences
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AnsiCode{ short_name: None, long_name:"clear_screen", code: "\x1b[J".to_string()}, // clears the screen
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AnsiCode{ short_name: None, long_name:"clear_screen_from_cursor_to_end", code: "\x1b[0J".to_string()}, // clears from cursor until end of screen
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AnsiCode{ short_name: None, long_name:"clear_screen_from_cursor_to_beginning", code: "\x1b[1J".to_string()}, // clears from cursor to beginning of screen
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AnsiCode{ short_name: Some("cls"), long_name:"clear_entire_screen", code: "\x1b[2J".to_string()}, // clears the entire screen
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AnsiCode{ short_name: None, long_name:"erase_line", code: "\x1b[K".to_string()}, // clears the current line
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AnsiCode{ short_name: None, long_name:"erase_line_from_cursor_to_end", code: "\x1b[0K".to_string()}, // clears from cursor to end of line
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AnsiCode{ short_name: None, long_name:"erase_line_from_cursor_to_beginning", code: "\x1b[1K".to_string()}, // clears from cursor to start of line
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AnsiCode{ short_name: None, long_name:"erase_entire_line", code: "\x1b[2K".to_string()}, // clears entire line
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// Turn on/off cursor
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AnsiCode{ short_name: None, long_name:"cursor_off", code: "\x1b[?25l".to_string()},
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AnsiCode{ short_name: None, long_name:"cursor_on", code: "\x1b[?25h".to_string()},
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// Turn on/off blinking
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AnsiCode{ short_name: None, long_name:"cursor_blink_off", code: "\x1b[?12l".to_string()},
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AnsiCode{ short_name: None, long_name:"cursor_blink_on", code: "\x1b[?12h".to_string()},
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// Cursor position in ESC [ <r>;<c>R where r = row and c = column
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AnsiCode{ short_name: None, long_name:"cursor_position", code: "\x1b[6n".to_string()},
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// Report Terminal Identity
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AnsiCode{ short_name: None, long_name:"identity", code: "\x1b[0c".to_string()},
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// Ansi escape only - CSI command
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AnsiCode{ short_name: Some("escape"), long_name: "escape_left", code: "\x1b[".to_string()},
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// OSC escape (Operating system command)
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AnsiCode{ short_name: Some("osc"), long_name:"escape_right", code: "\x1b]".to_string()},
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// OSC string terminator
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AnsiCode{ short_name: Some("st"), long_name:"string_terminator", code: "\x1b\\".to_string()},
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// Ansi Rgb - Needs to be 32;2;r;g;b or 48;2;r;g;b
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// assuming the rgb will be passed via command and no here
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AnsiCode{ short_name: None, long_name:"rgb_fg", code: "\x1b[38;2;".to_string()},
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AnsiCode{ short_name: None, long_name:"rgb_bg", code: "\x1b[48;2;".to_string()},
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// Ansi color index - Needs 38;5;idx or 48;5;idx where idx = 0 to 255
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AnsiCode{ short_name: Some("idx_fg"), long_name: "color_idx_fg", code: "\x1b[38;5;".to_string()},
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AnsiCode{ short_name: Some("idx_bg"), long_name:"color_idx_bg", code: "\x1b[48;5;".to_string()},
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// Returns terminal size like "[<r>;<c>R" where r is rows and c is columns
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// This should work assuming your terminal is not greater than 999x999
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AnsiCode{ short_name: None, long_name:"size", code: "\x1b[s\x1b[999;999H\x1b[6n\x1b[u".to_string()},};
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static ref CODE_MAP: HashMap<&'static str, &'static str > = build_ansi_hashmap(&CODE_LIST);
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}
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impl Command for AnsiCommand {
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fn name(&self) -> &str {
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"ansi"
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}
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fn signature(&self) -> Signature {
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Signature::build("ansi")
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.optional(
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"code",
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SyntaxShape::String,
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"the name of the code to use like 'green' or 'reset' to reset the color",
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)
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.switch(
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"escape", // \x1b[
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"escape sequence without the escape character(s)",
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Some('e'),
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)
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.switch(
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"osc", // \x1b]
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"operating system command (ocs) escape sequence without the escape character(s)",
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Some('o'),
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)
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.switch("list", "list available ansi code names", Some('l'))
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.category(Category::Platform)
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}
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fn usage(&self) -> &str {
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"Output ANSI codes to change color."
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}
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fn extra_usage(&self) -> &str {
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r#"For escape sequences:
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Escape: '\x1b[' is not required for --escape parameter
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Format: #(;#)m
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Example: 1;31m for bold red or 2;37;41m for dimmed white fg with red bg
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There can be multiple text formatting sequence numbers
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separated by a ; and ending with an m where the # is of the
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following values:
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attributes
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0 reset / normal display
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1 bold or increased intensity
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2 faint or decreased intensity
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3 italic on (non-mono font)
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4 underline on
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5 slow blink on
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6 fast blink on
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7 reverse video on
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8 nondisplayed (invisible) on
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9 strike-through on
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foreground/bright colors background/bright colors
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30/90 black 40/100 black
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31/91 red 41/101 red
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32/92 green 42/102 green
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33/93 yellow 43/103 yellow
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34/94 blue 44/104 blue
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35/95 magenta 45/105 magenta
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36/96 cyan 46/106 cyan
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37/97 white 47/107 white
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https://en.wikipedia.org/wiki/ANSI_escape_code
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OSC: '\x1b]' is not required for --osc parameter
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Example: echo [(ansi -o '0') 'some title' (char bel)] | str collect
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Format: #
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0 Set window title and icon name
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1 Set icon name
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2 Set window title
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4 Set/read color palette
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9 iTerm2 Grown notifications
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10 Set foreground color (x11 color spec)
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11 Set background color (x11 color spec)
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... others"#
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}
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fn examples(&self) -> Vec<Example> {
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vec![
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Example {
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description: "Change color to green",
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example: r#"ansi green"#,
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result: Some(Value::test_string("\u{1b}[32m")),
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},
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Example {
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description: "Reset the color",
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example: r#"ansi reset"#,
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result: Some(Value::test_string("\u{1b}[0m")),
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},
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Example {
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description:
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"Use ansi to color text (rb = red bold, gb = green bold, pb = purple bold)",
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example: r#"echo [(ansi rb) Hello " " (ansi gb) Nu " " (ansi pb) World] | str collect"#,
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result: Some(Value::test_string(
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"\u{1b}[1;31mHello \u{1b}[1;32mNu \u{1b}[1;35mWorld",
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)),
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},
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Example {
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description:
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"Use ansi to color text (rb = red bold, gb = green bold, pb = purple bold)",
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example: r#"echo [(ansi -e '3;93;41m') Hello (ansi reset) " " (ansi gb) Nu " " (ansi pb) World] | str collect"#,
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result: Some(Value::test_string(
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"\u{1b}[3;93;41mHello\u{1b}[0m \u{1b}[1;32mNu \u{1b}[1;35mWorld",
|
|
)),
|
|
},
|
|
]
|
|
}
|
|
|
|
fn run(
|
|
&self,
|
|
engine_state: &nu_protocol::engine::EngineState,
|
|
stack: &mut nu_protocol::engine::Stack,
|
|
call: &Call,
|
|
_input: PipelineData,
|
|
) -> Result<nu_protocol::PipelineData, ShellError> {
|
|
let list: bool = call.has_flag("list");
|
|
let escape: bool = call.has_flag("escape");
|
|
let osc: bool = call.has_flag("osc");
|
|
if list {
|
|
return generate_ansi_code_list(engine_state, call.head);
|
|
}
|
|
let code: String = match call.opt::<String>(engine_state, stack, 0)? {
|
|
Some(x) => x,
|
|
None => {
|
|
return Err(ShellError::MissingParameter("code".into(), call.head));
|
|
}
|
|
};
|
|
if escape && osc {
|
|
return Err(ShellError::IncompatibleParameters {
|
|
left_message: "escape".into(),
|
|
left_span: call
|
|
.get_named_arg("escape")
|
|
.expect("Unexpected missing argument")
|
|
.span,
|
|
right_message: "osc".into(),
|
|
right_span: call
|
|
.get_named_arg("osc")
|
|
.expect("Unexpected missing argument")
|
|
.span,
|
|
});
|
|
}
|
|
if escape || osc {
|
|
let code_vec: Vec<char> = code.chars().collect();
|
|
if code_vec[0] == '\\' {
|
|
return Err(ShellError::UnsupportedInput(
|
|
String::from("no need for escape characters"),
|
|
call.get_flag_expr("escape")
|
|
.expect("Unexpected missing argument")
|
|
.span,
|
|
));
|
|
}
|
|
}
|
|
let output = if escape {
|
|
format!("\x1b[{}", code)
|
|
} else if osc {
|
|
//Operating system command aka osc ESC ] <- note the right brace, not left brace for osc
|
|
// OCS's need to end with a bell '\x07' char
|
|
format!("\x1b]{};", code)
|
|
} else {
|
|
match str_to_ansi(&code) {
|
|
Some(c) => c,
|
|
None => {
|
|
return Err(ShellError::UnsupportedInput(
|
|
String::from("Unknown ansi code"),
|
|
call.nth(0).expect("Unexpected missing argument").span,
|
|
))
|
|
}
|
|
}
|
|
};
|
|
Ok(Value::string(output, call.head).into_pipeline_data())
|
|
}
|
|
}
|
|
|
|
pub fn str_to_ansi(s: &str) -> Option<String> {
|
|
CODE_MAP.get(s).map(|x| String::from(*x))
|
|
}
|
|
|
|
fn generate_ansi_code_list(
|
|
engine_state: &nu_protocol::engine::EngineState,
|
|
call_span: Span,
|
|
) -> Result<nu_protocol::PipelineData, ShellError> {
|
|
return Ok(CODE_LIST
|
|
.iter()
|
|
.map(move |ansi_code| {
|
|
let cols = vec!["name".into(), "short name".into(), "code".into()];
|
|
let name: Value = Value::string(String::from(ansi_code.long_name), call_span);
|
|
let short_name = Value::string(ansi_code.short_name.unwrap_or(""), call_span);
|
|
let code_string = String::from(&ansi_code.code.replace("\u{1b}", ""));
|
|
let code = Value::string(code_string, call_span);
|
|
let vals = vec![name, short_name, code];
|
|
Value::Record {
|
|
cols,
|
|
vals,
|
|
span: call_span,
|
|
}
|
|
})
|
|
.into_pipeline_data(engine_state.ctrlc.clone()));
|
|
}
|
|
|
|
fn build_ansi_hashmap(v: &'static [AnsiCode]) -> HashMap<&'static str, &'static str> {
|
|
let mut result = HashMap::new();
|
|
for code in v.iter() {
|
|
let value: &'static str = &code.code;
|
|
if let Some(sn) = code.short_name {
|
|
result.insert(sn, value);
|
|
}
|
|
result.insert(code.long_name, value);
|
|
}
|
|
result
|
|
}
|
|
|
|
#[cfg(test)]
|
|
mod tests {
|
|
use super::AnsiCommand;
|
|
|
|
#[test]
|
|
fn examples_work_as_expected() {
|
|
use crate::test_examples;
|
|
|
|
test_examples(AnsiCommand {})
|
|
}
|
|
}
|