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Add support for UTF-16LE and UTF-16BE

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sharkdp 2018-10-07 16:44:59 +02:00 committed by David Peter
parent e97095b724
commit 25d96da4a2
5 changed files with 137 additions and 13 deletions
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65
Cargo.lock generated
View File

@ -52,6 +52,7 @@ dependencies = [
"console 0.6.2 (registry+https://github.com/rust-lang/crates.io-index)",
"content_inspector 0.2.2 (registry+https://github.com/rust-lang/crates.io-index)",
"directories 1.0.1 (registry+https://github.com/rust-lang/crates.io-index)",
"encoding 0.2.33 (registry+https://github.com/rust-lang/crates.io-index)",
"error-chain 0.12.0 (registry+https://github.com/rust-lang/crates.io-index)",
"git2 0.7.5 (registry+https://github.com/rust-lang/crates.io-index)",
"lazy_static 1.1.0 (registry+https://github.com/rust-lang/crates.io-index)",
@ -166,6 +167,63 @@ dependencies = [
"winapi 0.3.6 (registry+https://github.com/rust-lang/crates.io-index)",
]
[[package]]
name = "encoding"
version = "0.2.33"
source = "registry+https://github.com/rust-lang/crates.io-index"
dependencies = [
"encoding-index-japanese 1.20141219.5 (registry+https://github.com/rust-lang/crates.io-index)",
"encoding-index-korean 1.20141219.5 (registry+https://github.com/rust-lang/crates.io-index)",
"encoding-index-simpchinese 1.20141219.5 (registry+https://github.com/rust-lang/crates.io-index)",
"encoding-index-singlebyte 1.20141219.5 (registry+https://github.com/rust-lang/crates.io-index)",
"encoding-index-tradchinese 1.20141219.5 (registry+https://github.com/rust-lang/crates.io-index)",
]
[[package]]
name = "encoding-index-japanese"
version = "1.20141219.5"
source = "registry+https://github.com/rust-lang/crates.io-index"
dependencies = [
"encoding_index_tests 0.1.4 (registry+https://github.com/rust-lang/crates.io-index)",
]
[[package]]
name = "encoding-index-korean"
version = "1.20141219.5"
source = "registry+https://github.com/rust-lang/crates.io-index"
dependencies = [
"encoding_index_tests 0.1.4 (registry+https://github.com/rust-lang/crates.io-index)",
]
[[package]]
name = "encoding-index-simpchinese"
version = "1.20141219.5"
source = "registry+https://github.com/rust-lang/crates.io-index"
dependencies = [
"encoding_index_tests 0.1.4 (registry+https://github.com/rust-lang/crates.io-index)",
]
[[package]]
name = "encoding-index-singlebyte"
version = "1.20141219.5"
source = "registry+https://github.com/rust-lang/crates.io-index"
dependencies = [
"encoding_index_tests 0.1.4 (registry+https://github.com/rust-lang/crates.io-index)",
]
[[package]]
name = "encoding-index-tradchinese"
version = "1.20141219.5"
source = "registry+https://github.com/rust-lang/crates.io-index"
dependencies = [
"encoding_index_tests 0.1.4 (registry+https://github.com/rust-lang/crates.io-index)",
]
[[package]]
name = "encoding_index_tests"
version = "0.1.4"
source = "registry+https://github.com/rust-lang/crates.io-index"
[[package]]
name = "error-chain"
version = "0.12.0"
@ -841,6 +899,13 @@ dependencies = [
"checksum console 0.6.2 (registry+https://github.com/rust-lang/crates.io-index)" = "ecd48adf136733979b49e15bc3b4c43cc0d3c85ece7bd08e6daa414c6fcb13e6"
"checksum content_inspector 0.2.2 (registry+https://github.com/rust-lang/crates.io-index)" = "d902e17eb0038a23c88baa0d78c75fac7968132e73f4fdb9ea77b03d2641b669"
"checksum directories 1.0.1 (registry+https://github.com/rust-lang/crates.io-index)" = "b106a38a9bf6c763c6c2e2c3332ab7635da453a68a6babca776386b3b287d338"
"checksum encoding 0.2.33 (registry+https://github.com/rust-lang/crates.io-index)" = "6b0d943856b990d12d3b55b359144ff341533e516d94098b1d3fc1ac666d36ec"
"checksum encoding-index-japanese 1.20141219.5 (registry+https://github.com/rust-lang/crates.io-index)" = "04e8b2ff42e9a05335dbf8b5c6f7567e5591d0d916ccef4e0b1710d32a0d0c91"
"checksum encoding-index-korean 1.20141219.5 (registry+https://github.com/rust-lang/crates.io-index)" = "4dc33fb8e6bcba213fe2f14275f0963fd16f0a02c878e3095ecfdf5bee529d81"
"checksum encoding-index-simpchinese 1.20141219.5 (registry+https://github.com/rust-lang/crates.io-index)" = "d87a7194909b9118fc707194baa434a4e3b0fb6a5a757c73c3adb07aa25031f7"
"checksum encoding-index-singlebyte 1.20141219.5 (registry+https://github.com/rust-lang/crates.io-index)" = "3351d5acffb224af9ca265f435b859c7c01537c0849754d3db3fdf2bfe2ae84a"
"checksum encoding-index-tradchinese 1.20141219.5 (registry+https://github.com/rust-lang/crates.io-index)" = "fd0e20d5688ce3cab59eb3ef3a2083a5c77bf496cb798dc6fcdb75f323890c18"
"checksum encoding_index_tests 0.1.4 (registry+https://github.com/rust-lang/crates.io-index)" = "a246d82be1c9d791c5dfde9a2bd045fc3cbba3fa2b11ad558f27d01712f00569"
"checksum error-chain 0.12.0 (registry+https://github.com/rust-lang/crates.io-index)" = "07e791d3be96241c77c43846b665ef1384606da2cd2a48730abe606a12906e02"
"checksum flate2 1.0.2 (registry+https://github.com/rust-lang/crates.io-index)" = "37847f133aae7acf82bb9577ccd8bda241df836787642654286e79679826a54b"
"checksum fnv 1.0.6 (registry+https://github.com/rust-lang/crates.io-index)" = "2fad85553e09a6f881f739c29f0b00b0f01357c743266d478b68951ce23285f3"

1
Cargo.toml
View File

@ -23,6 +23,7 @@ directories = "1.0"
lazy_static = "1.0"
wild = "2.0"
content_inspector = "0.2.2"
encoding = "0.2"
[dependencies.git2]
version = "0.7"

49
src/inputfile.rs
View File

@ -1,6 +1,8 @@
use std::fs::File;
use std::io::{self, BufRead, BufReader};
use content_inspector::{self, ContentType};
use errors::*;
const THEME_PREVIEW_FILE: &[u8] = include_bytes!("../assets/theme_preview.rs");
@ -8,6 +10,7 @@ const THEME_PREVIEW_FILE: &[u8] = include_bytes!("../assets/theme_preview.rs");
pub struct InputFileReader<'a> {
inner: Box<dyn BufRead + 'a>,
pub first_line: Vec<u8>,
pub content_type: ContentType,
}
impl<'a> InputFileReader<'a> {
@ -15,18 +18,31 @@ impl<'a> InputFileReader<'a> {
let mut first_line = vec![];
reader.read_until(b'\n', &mut first_line).ok();
let content_type = content_inspector::inspect(&first_line[..]);
if content_type == ContentType::UTF_16LE {
reader.read_until(0x00, &mut first_line).ok();
}
InputFileReader {
inner: Box::new(reader),
first_line,
content_type,
}
}
pub fn read_line(&mut self, buf: &mut Vec<u8>) -> io::Result<bool> {
if self.first_line.is_empty() {
self.inner.read_until(b'\n', buf).map(|size| size > 0)
let res = self.inner.read_until(b'\n', buf).map(|size| size > 0)?;
if self.content_type == ContentType::UTF_16LE {
self.inner.read_until(0x00, buf).ok();
}
Ok(res)
} else {
buf.append(&mut self.first_line);
return Ok(true);
Ok(true)
}
}
}
@ -84,3 +100,32 @@ fn basic() {
assert_eq!(false, res.unwrap());
assert!(buffer.is_empty());
}
#[test]
fn utf16le() {
let content = b"\xFF\xFE\x73\x00\x0A\x00\x64\x00";
let mut reader = InputFileReader::new(&content[..]);
assert_eq!(b"\xFF\xFE\x73\x00\x0A\x00", &reader.first_line[..]);
let mut buffer = vec![];
let res = reader.read_line(&mut buffer);
assert!(res.is_ok());
assert_eq!(true, res.unwrap());
assert_eq!(b"\xFF\xFE\x73\x00\x0A\x00", &buffer[..]);
buffer.clear();
let res = reader.read_line(&mut buffer);
assert!(res.is_ok());
assert_eq!(true, res.unwrap());
assert_eq!(b"\x64\x00", &buffer[..]);
buffer.clear();
let res = reader.read_line(&mut buffer);
assert!(res.is_ok());
assert_eq!(false, res.unwrap());
assert!(buffer.is_empty());
}

1
src/main.rs
View File

@ -15,6 +15,7 @@ extern crate atty;
extern crate console;
extern crate content_inspector;
extern crate directories;
extern crate encoding;
extern crate git2;
extern crate syntect;
extern crate wild;

34
src/printer.rs
View File

@ -9,7 +9,10 @@ use console::AnsiCodeIterator;
use syntect::easy::HighlightLines;
use syntect::highlighting::Theme;
use content_inspector::{self, ContentType};
use content_inspector::ContentType;
use encoding::all::{UTF_16BE, UTF_16LE};
use encoding::{DecoderTrap, Encoding};
use app::Config;
use assets::HighlightingAssets;
@ -121,12 +124,9 @@ impl<'a> InteractivePrinter<'a> {
panel_width = 0;
}
// Determine file content type
let content_type = content_inspector::inspect(&reader.first_line[..]);
let mut line_changes = None;
let highlighter = if content_type.is_binary() {
let highlighter = if reader.content_type.is_binary() {
None
} else {
// Get the Git modifications
@ -149,8 +149,8 @@ impl<'a> InteractivePrinter<'a> {
colors,
config,
decorations,
content_type: reader.content_type,
ansi_prefix_sgr: String::new(),
content_type,
line_changes,
highlighter,
}
@ -207,10 +207,11 @@ impl<'a> Printer for InteractivePrinter<'a> {
_ => ("", "STDIN"),
};
let mode = if self.content_type.is_binary() {
" <BINARY>"
} else {
""
let mode = match self.content_type {
ContentType::BINARY => " <BINARY>",
ContentType::UTF_16LE => " <UTF-16LE>",
ContentType::UTF_16BE => " <UTF-16BE>",
_ => ""
};
writeln!(
@ -247,7 +248,18 @@ impl<'a> Printer for InteractivePrinter<'a> {
line_number: usize,
line_buffer: &[u8],
) -> Result<()> {
let line = String::from_utf8_lossy(&line_buffer).to_string();
let line = match self.content_type {
ContentType::BINARY => {
return Ok(());
}
ContentType::UTF_16LE => UTF_16LE
.decode(&line_buffer, DecoderTrap::Strict)
.unwrap_or("Invalid UTF-16LE".into()),
ContentType::UTF_16BE => UTF_16BE
.decode(&line_buffer, DecoderTrap::Strict)
.unwrap_or("Invalid UTF-16BE".into()),
_ => String::from_utf8_lossy(&line_buffer).to_string(),
};
let regions = {
let highlighter = match self.highlighter {
Some(ref mut highlighter) => highlighter,