mirror of https://github.com/sharkdp/bat.git
73 lines
2.4 KiB
Rust
73 lines
2.4 KiB
Rust
use ansi_term::Color::{self, Fixed, RGB};
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use ansi_term::{self, Style};
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use syntect::highlighting::{self, FontStyle};
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pub fn to_ansi_color(color: highlighting::Color, true_color: bool) -> ansi_term::Color {
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if color.a == 0 {
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// Themes can specify one of the user-configurable terminal colors by
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// encoding them as #RRGGBBAA with AA set to 00 (transparent) and RR set
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// to the color palette number. The built-in themes ansi-light,
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// ansi-dark, and base16 use this.
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Fixed(color.r)
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} else if color.a == 0x0f {
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match color.r {
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0x00 => Color::Black,
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0x01 => Color::Red,
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0x02 => Color::Green,
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0x03 => Color::Yellow,
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0x04 => Color::Blue,
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0x05 => Color::Purple,
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0x06 => Color::Cyan,
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0x07 => Color::White,
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// TODO: the following should be high-intensity variants of
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// these colors ("bright black", "bright red", ...).
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0x08 => Color::Black,
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0x09 => Color::Red,
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0x0a => Color::Green,
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0x0b => Color::Yellow,
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0x0c => Color::Blue,
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0x0d => Color::Purple,
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0x0e => Color::Cyan,
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0x0f => Color::White,
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_ => unreachable!("The 0x0f color encoding does not allow for codes higher than 0x0f"),
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}
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} else if true_color {
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RGB(color.r, color.g, color.b)
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} else {
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Fixed(ansi_colours::ansi256_from_rgb((color.r, color.g, color.b)))
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}
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}
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pub fn as_terminal_escaped(
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style: highlighting::Style,
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text: &str,
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true_color: bool,
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colored: bool,
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italics: bool,
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background_color: Option<highlighting::Color>,
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) -> String {
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if text.is_empty() {
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return text.to_string();
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}
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let mut style = if !colored {
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Style::default()
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} else {
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let mut color = Style::from(to_ansi_color(style.foreground, true_color));
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if style.font_style.contains(FontStyle::BOLD) {
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color = color.bold();
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}
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if style.font_style.contains(FontStyle::UNDERLINE) {
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color = color.underline();
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}
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if italics && style.font_style.contains(FontStyle::ITALIC) {
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color = color.italic();
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}
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color
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};
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style.background = background_color.map(|c| to_ansi_color(c, true_color));
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style.paint(text).to_string()
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}
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