Ugly progress commit

This commit is contained in:
Timothy Warren 2019-08-22 14:25:18 -04:00
parent 2d5db77ce4
commit 6c967fe499
6 changed files with 130 additions and 20 deletions

1
.gitignore vendored
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@ -1,2 +1,3 @@
/target
**/*.rs.bk
.idea

16
Cargo.lock generated
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@ -15,6 +15,11 @@ name = "cfg-if"
version = "0.1.9"
source = "registry+https://github.com/rust-lang/crates.io-index"
[[package]]
name = "lazy_static"
version = "1.3.0"
source = "registry+https://github.com/rust-lang/crates.io-index"
[[package]]
name = "libc"
version = "0.2.62"
@ -37,6 +42,15 @@ name = "rs-kilo"
version = "0.1.0"
dependencies = [
"nix 0.15.0 (registry+https://github.com/rust-lang/crates.io-index)",
"term-parser 0.2.0 (registry+https://github.com/rust-lang/crates.io-index)",
]
[[package]]
name = "term-parser"
version = "0.2.0"
source = "registry+https://github.com/rust-lang/crates.io-index"
dependencies = [
"lazy_static 1.3.0 (registry+https://github.com/rust-lang/crates.io-index)",
]
[[package]]
@ -48,6 +62,8 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
"checksum bitflags 1.1.0 (registry+https://github.com/rust-lang/crates.io-index)" = "3d155346769a6855b86399e9bc3814ab343cd3d62c7e985113d46a0ec3c281fd"
"checksum cc 1.0.40 (registry+https://github.com/rust-lang/crates.io-index)" = "b548a4ee81fccb95919d4e22cfea83c7693ebfd78f0495493178db20b3139da7"
"checksum cfg-if 0.1.9 (registry+https://github.com/rust-lang/crates.io-index)" = "b486ce3ccf7ffd79fdeb678eac06a9e6c09fc88d33836340becb8fffe87c5e33"
"checksum lazy_static 1.3.0 (registry+https://github.com/rust-lang/crates.io-index)" = "bc5729f27f159ddd61f4df6228e827e86643d4d3e7c32183cb30a1c08f604a14"
"checksum libc 0.2.62 (registry+https://github.com/rust-lang/crates.io-index)" = "34fcd2c08d2f832f376f4173a231990fa5aef4e99fb569867318a227ef4c06ba"
"checksum nix 0.15.0 (registry+https://github.com/rust-lang/crates.io-index)" = "3b2e0b4f3320ed72aaedb9a5ac838690a8047c7b275da22711fddff4f8a14229"
"checksum term-parser 0.2.0 (registry+https://github.com/rust-lang/crates.io-index)" = "3c483a684059c71636d0e4ff927bd5feb5f2a533e7a8f16a0008dd33c8752cbc"
"checksum void 1.0.2 (registry+https://github.com/rust-lang/crates.io-index)" = "6a02e4885ed3bc0f2de90ea6dd45ebcbb66dacffe03547fadbb0eeae2770887d"

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@ -8,3 +8,4 @@ edition = "2018"
[dependencies]
nix = "0.15.0"
term-parser = "0.2.0"

11
src/editor.rs Normal file
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@ -0,0 +1,11 @@
//! Editor functionality
pub struct Editor {}
impl Editor {
pub fn new() -> Self {
Editor {
}
}
}

16
src/helpers.rs Normal file
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@ -0,0 +1,16 @@
/// Helper functions, especially to reproduce C std/posix functions
use nix::errno::*;
use std::process::exit;
/// Is this character an ASCII control character?
pub fn is_cntrl(c: char) -> bool {
let code = c as u8;
code < 32 || code == 127
}
pub fn die(code: &Errno, msg: &str) -> ! {
eprintln!("{:?} ({})", code, msg);
exit(1)
}

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@ -1,43 +1,108 @@
use nix::Error as NixError;
use nix::sys::termios;
use nix::sys::termios::Termios;
// use nix::unistd;
use nix::sys::termios::{InputFlags, LocalFlags, OutputFlags, SpecialCharacterIndices, Termios};
use std::io;
use std::io::{BufReader, Error};
use std::io::prelude::*;
use term_parser::ActionIter;
mod editor;
mod helpers;
// use crate::editor::Editor;
use crate::helpers::*;
// Redefine the posix constants for rust land
const STDIN_FILENO: i32 = 0;
const STDOUT_FILENO: i32 = 1;
const STDERR_FILENO: i32 = 2;
// const STDOUT_FILENO: i32 = 1;
// const STDERR_FILENO: i32 = 2;
fn disable_raw_mode(original: &Termios) -> Result<(), Error> {
match termios::tcsetattr(STDIN_FILENO, termios::SetArg::TCSAFLUSH, original) {
Ok(()) => Ok(()),
Err(E) => match E.as_errno() {
Some(errno) => die(&errno, "tcsetattr"),
None => panic!("Failed to disable raw mode")
}
}
}
fn enable_raw_mode() -> Result<(), Error> {
let raw: Result<Termios, NixError> = termios::tcgetattr(STDIN_FILENO);
let mut raw = raw.unwrap();
raw.local_flags.remove(termios::LocalFlags::ECHO);
let mut raw = termios::tcgetattr(STDIN_FILENO).unwrap();
raw.input_flags.remove(
InputFlags::BRKINT &
InputFlags::ICRNL &
InputFlags::INPCK &
InputFlags::ISTRIP &
InputFlags::IXON
);
raw.output_flags.remove(OutputFlags::OPOST);
raw.local_flags.remove(
LocalFlags::ECHO &
LocalFlags::ICANON &
LocalFlags::IEXTEN &
LocalFlags::ISIG
);
// 8 bit characters
raw.control_flags |= termios::ControlFlags::CS8;
raw.control_chars[SpecialCharacterIndices::VMIN as usize] = 0;
raw.control_chars[SpecialCharacterIndices::VTIME as usize] = 1;
match termios::tcsetattr(STDIN_FILENO, termios::SetArg::TCSAFLUSH, &raw) {
Ok(()) => Ok(()),
_ => panic!("Failed to set raw mode"),
Err(e) => match e.as_errno() {
Some(errno) => die(&errno, "tcsetattr"),
None => panic!("Failed to enable raw mode")
}
}
}
fn main() -> Result<(), Error> {
let orig_termios = termios::tcgetattr(STDIN_FILENO).unwrap();
enable_raw_mode()?;
loop {
let stdin = io::stdin();
let mut in_str = String::new();
let mut input = BufReader::new(stdin.take(1));
input.read_to_string(&mut in_str)?;
let buffer = BufReader::new(stdin);
let term_code_iter = ActionIter::new(buffer);
let mut chars = in_str.chars();
let char = chars.next().unwrap();
if char == 'q' {
return Ok(());
}
for term_code in term_code_iter {
let term_code = match term_code {
Ok(code) => code,
Err(e) => panic!("{:?}", e),
};
println!("\r{:?}", term_code);
}
Ok(())
// loop {
// let stdin = io::stdin();
// let mut in_str = String::new();
// let mut input = BufReader::new(stdin.take(1));
// input.read_to_string(&mut in_str)?;
//
// let mut chars = in_str.chars();
// let char = chars.next().unwrap();
//
// if char == 'q' {
// return disable_raw_mode(&orig_termios);
// }
//
// // Echo characters
// if is_cntrl(char) {
// print!("{}\r\n", char as u8);
// continue;
// } else {
// print!("{} ('{}')\r\n", char as u8, char);
// continue;
// }
// }
}