re-imported job/signal code from old implementation

src/parse/execute.rs

@@ -1,6 +1,5 @@
 use std::collections::VecDeque;
 
-use nix::sys::wait::WaitPidFlag;
 
 use crate::{builtin::echo::echo, libsh::error::ShResult, prelude::*, procio::{IoFrame, IoPipe, IoStack}, state::{self, write_vars}};
 

src/parse/lex.rs

@@ -2,7 +2,7 @@ use std::{fmt::Display, ops::{Bound, Deref, Range, RangeBounds}};
 
 use bitflags::bitflags;
 
-use crate::{builtin::BUILTINS, libsh::error::{ShErr, ShErrKind}, prelude::*};
+use crate::{builtin::BUILTINS, prelude::*};
 
 pub const KEYWORDS: [&'static str;14] = [
 	"if",

src/parse/mod.rs

@@ -1,7 +1,7 @@
 use std::str::FromStr;
 
 use bitflags::bitflags;
-use lex::{is_hard_sep, Span, Tk, TkFlags, TkRule};
+use lex::{Span, Tk, TkFlags, TkRule};
 
 use crate::{prelude::*, libsh::error::{ShErr, ShErrKind, ShResult}, procio::{IoFd, IoFile, IoInfo}};