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Move some stuff out to rust-ansi-term crate

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This commit is contained in:
Ben S 2014-07-01 19:00:36 +01:00
parent eecfd88363
commit d2647df0ca
5 changed files with 17 additions and 259 deletions
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4
Cargo.toml
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@ -7,3 +7,7 @@ authors = [ "ogham@bsago.me" ]
[[bin]]
name = "exa"
[dependencies.ansi_term]
git = "https://github.com/ogham/rust-ansi-term.git"

252
src/colours.rs
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@ -1,252 +0,0 @@
// Provide standard values for the eight standard colours and custom
// values for up to 256. There are terminals that can do the full RGB
// spectrum, but for something as simple as discerning file types this
// doesn't really seem worth it.
// Bear in mind that the first eight (and their bold variants) are
// user-definable and can look different on different terminals, but
// the other 256 have their values fixed.
pub enum Colour {
Black, Red, Green, Yellow, Blue, Purple, Cyan, White, Fixed(u8),
}
// These are the standard numeric sequences.
// See http://invisible-island.net/xterm/ctlseqs/ctlseqs.html
impl Colour {
fn foreground_code(&self) -> String {
match *self {
Black => "30".to_string(),
Red => "31".to_string(),
Green => "32".to_string(),
Yellow => "33".to_string(),
Blue => "34".to_string(),
Purple => "35".to_string(),
Cyan => "36".to_string(),
White => "37".to_string(),
Fixed(num) => format!("38;5;{}", num),
}
}
fn background_code(&self) -> String {
match *self {
Black => "40".to_string(),
Red => "41".to_string(),
Green => "42".to_string(),
Yellow => "43".to_string(),
Blue => "44".to_string(),
Purple => "45".to_string(),
Cyan => "46".to_string(),
White => "47".to_string(),
Fixed(num) => format!("48;5;{}", num),
}
}
}
// Prefer using a fixed grey, such as Fixed(244), to bold black, as
// bold black looks really weird on some terminals.
pub static Grey: Colour = Fixed(244);
// There are only three different styles: plain (no formatting), only
// a foreground colour, and a catch-all for anything more complicated
// than that. It's technically possible to write other cases such as
// "bold foreground", but probably isn't worth writing all the code.
pub enum Style {
Plain,
Foreground(Colour),
Style(StyleStruct),
}
// Having a struct inside an enum is currently unfinished in Rust, but
// should be put in there when that feature is complete.
pub struct StyleStruct {
foreground: Colour,
background: Option<Colour>,
bold: bool,
underline: bool,
}
impl Style {
pub fn paint(&self, input: &str) -> String {
match *self {
Plain => input.to_string(),
Foreground(c) => c.paint(input),
Style(s) => match s {
StyleStruct { foreground, background, bold, underline } => {
let bg = match background {
Some(c) => format!("{};", c.background_code()),
None => "".to_string()
};
let bo = if bold { "1;" } else { "" };
let un = if underline { "4;" } else { "" };
let painted = format!("\x1B[{}{}{}{}m{}\x1B[0m", bo, un, bg, foreground.foreground_code(), input.to_string());
return painted.to_string();
}
}
}
}
}
impl Style {
pub fn bold(&self) -> Style {
match *self {
Plain => Style(StyleStruct { foreground: White, background: None, bold: true, underline: false }),
Foreground(c) => Style(StyleStruct { foreground: c, background: None, bold: true, underline: false }),
Style(st) => Style(StyleStruct { foreground: st.foreground, background: st.background, bold: true, underline: st.underline }),
}
}
pub fn underline(&self) -> Style {
match *self {
Plain => Style(StyleStruct { foreground: White, background: None, bold: false, underline: true }),
Foreground(c) => Style(StyleStruct { foreground: c, background: None, bold: false, underline: true }),
Style(st) => Style(StyleStruct { foreground: st.foreground, background: st.background, bold: st.bold, underline: true }),
}
}
pub fn on(&self, background: Colour) -> Style {
match *self {
Plain => Style(StyleStruct { foreground: White, background: Some(background), bold: false, underline: false }),
Foreground(c) => Style(StyleStruct { foreground: c, background: Some(background), bold: false, underline: false }),
Style(st) => Style(StyleStruct { foreground: st.foreground, background: Some(background), bold: st.bold, underline: st.underline }),
}
}
}
impl Colour {
// This is a short-cut so you don't have to use Blue.normal() just
// to turn Blue into a Style. Annoyingly, this means that Blue and
// Blue.normal() aren't of the same type, but this hasn't been an
// issue so far.
pub fn paint(&self, input: &str) -> String {
let re = format!("\x1B[{}m{}\x1B[0m", self.foreground_code(), input);
return re.to_string();
}
pub fn underline(&self) -> Style {
Style(StyleStruct { foreground: *self, background: None, bold: false, underline: true })
}
pub fn bold(&self) -> Style {
Style(StyleStruct { foreground: *self, background: None, bold: true, underline: false })
}
pub fn normal(&self) -> Style {
Style(StyleStruct { foreground: *self, background: None, bold: false, underline: false })
}
pub fn on(&self, background: Colour) -> Style {
Style(StyleStruct { foreground: *self, background: Some(background), bold: false, underline: false })
}
}
pub fn strip_formatting(input: &String) -> String {
let re = regex!("\x1B\\[.+?m");
re.replace_all(input.as_slice(), "").to_string()
}
#[test]
fn test_red() {
let hi = Red.paint("hi");
assert!(hi == "\x1B[31mhi\x1B[0m".to_string());
}
#[test]
fn test_black() {
let hi = Black.normal().paint("hi");
assert!(hi == "\x1B[30mhi\x1B[0m".to_string());
}
#[test]
fn test_yellow_bold() {
let hi = Yellow.bold().paint("hi");
assert!(hi == "\x1B[1;33mhi\x1B[0m".to_string());
}
#[test]
fn test_yellow_bold_2() {
let hi = Yellow.normal().bold().paint("hi");
assert!(hi == "\x1B[1;33mhi\x1B[0m".to_string());
}
#[test]
fn test_blue_underline() {
let hi = Blue.underline().paint("hi");
assert!(hi == "\x1B[4;34mhi\x1B[0m".to_string());
}
#[test]
fn test_green_bold_underline() {
let hi = Green.bold().underline().paint("hi");
assert!(hi == "\x1B[1;4;32mhi\x1B[0m".to_string());
}
#[test]
fn test_green_bold_underline_2() {
let hi = Green.underline().bold().paint("hi");
assert!(hi == "\x1B[1;4;32mhi\x1B[0m".to_string());
}
#[test]
fn test_purple_on_white() {
let hi = Purple.on(White).paint("hi");
assert!(hi == "\x1B[47;35mhi\x1B[0m".to_string());
}
#[test]
fn test_purple_on_white_2() {
let hi = Purple.normal().on(White).paint("hi");
assert!(hi == "\x1B[47;35mhi\x1B[0m".to_string());
}
#[test]
fn test_cyan_bold_on_white() {
let hi = Cyan.bold().on(White).paint("hi");
assert!(hi == "\x1B[1;47;36mhi\x1B[0m".to_string());
}
#[test]
fn test_cyan_underline_on_white() {
let hi = Cyan.underline().on(White).paint("hi");
assert!(hi == "\x1B[4;47;36mhi\x1B[0m".to_string());
}
#[test]
fn test_cyan_bold_underline_on_white() {
let hi = Cyan.bold().underline().on(White).paint("hi");
assert!(hi == "\x1B[1;4;47;36mhi\x1B[0m".to_string());
}
#[test]
fn test_cyan_underline_bold_on_white() {
let hi = Cyan.underline().bold().on(White).paint("hi");
assert!(hi == "\x1B[1;4;47;36mhi\x1B[0m".to_string());
}
#[test]
fn test_fixed() {
let hi = Fixed(100).paint("hi");
assert!(hi == "\x1B[38;5;100mhi\x1B[0m".to_string());
}
#[test]
fn test_fixed_on_purple() {
let hi = Fixed(100).on(Purple).paint("hi");
assert!(hi == "\x1B[45;38;5;100mhi\x1B[0m".to_string());
}
#[test]
fn test_fixed_on_fixed() {
let hi = Fixed(100).on(Fixed(200)).paint("hi");
assert!(hi == "\x1B[48;5;200;38;5;100mhi\x1B[0m".to_string());
}

7
src/exa.rs
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@ -1,6 +1,7 @@
#![feature(phase)]
extern crate regex;
#[phase(plugin)] extern crate regex_macros;
extern crate ansi_term;
use std::os;
@ -8,9 +9,9 @@ use file::File;
use dir::Dir;
use options::Options;
use unix::Unix;
use colours::Plain;
pub mod colours;
use ansi_term::{Plain, strip_formatting};
pub mod column;
pub mod dir;
pub mod format;
@ -88,7 +89,7 @@ fn exa(options: &Options, print_header: bool, string: String) {
// results are cached.
let lengths: Vec<Vec<uint>> = table.iter()
.map(|row| row.iter().map(|col| colours::strip_formatting(col).len()).collect())
.map(|row| row.iter().map(|col| strip_formatting(col).len()).collect())
.collect();
let column_widths: Vec<uint> = range(0, options.columns.len())

5
src/file.rs
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@ -1,8 +1,9 @@
use colours::{Plain, Style, Red, Green, Yellow, Blue, Purple, Cyan, Grey};
use std::io::{fs, IoResult};
use std::io;
use std::str::from_utf8_lossy;
use ansi_term::{Colour, Plain, Style, Red, Green, Yellow, Blue, Purple, Cyan, Fixed};
use column::{Column, Permissions, FileName, FileSize, User, Group, HardLinks, Inode, Blocks};
use format::{format_metric_bytes, format_IEC_bytes};
use unix::Unix;
@ -10,6 +11,8 @@ use sort::SortPart;
use dir::Dir;
use filetype::HasType;
static Grey: Colour = Fixed(244);
// Instead of working with Rust's Paths, we have our own File object
// that holds the Path and various cached information. Each file is
// definitely going to have its filename used at least once, its stat

6
src/filetype.rs
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@ -1,7 +1,10 @@
use colours::{Plain, Style, Red, Green, Yellow, Blue, Cyan, Grey, Fixed};
use file::File;
use std::io;
use ansi_term::{Colour, Plain, Style, Red, Green, Yellow, Blue, Cyan, Fixed};
static Grey: Colour = Fixed(244);
pub enum FileType {
Normal, Directory, Executable, Immediate, Compiled, Symlink, Special,
Image, Video, Music, Lossless, Compressed, Document, Temp, Crypto,
@ -136,4 +139,3 @@ impl<'a> HasType for File<'a> {
return Normal; // no filetype
}
}