implemented for loops

src/builtin/alias.rs

@@ -30,7 +30,7 @@ pub fn alias(node: Node, io_stack: &mut IoStack, job: &mut JobBldr) -> ShResult<
 					ShErr::full(
 						ShErrKind::SyntaxErr,
 						"alias: Expected an assignment in alias args",
-						span.into()
+						span
 					)
 				)
 			};
@@ -41,3 +41,45 @@ pub fn alias(node: Node, io_stack: &mut IoStack, job: &mut JobBldr) -> ShResult<
 	state::set_status(0);
 	Ok(())
 }
+
+pub fn unalias(node: Node, io_stack: &mut IoStack, job: &mut JobBldr) -> ShResult<()> {
+	let NdRule::Command { assignments: _, argv } = node.class else {
+		unreachable!()
+	};
+
+	let (argv, io_frame) = setup_builtin(argv, job, Some((io_stack, node.redirs)))?;
+
+
+	if argv.is_empty() {
+		// Display the environment variables
+		let mut alias_output = read_logic(|l| {
+			l.aliases()
+				.iter()
+				.map(|ent| format!("{} = \"{}\"", ent.0, ent.1))
+				.collect::<Vec<_>>()
+		});
+		alias_output.sort(); // Sort them alphabetically
+		let mut alias_output = alias_output.join("\n"); // Join them with newlines
+		alias_output.push('\n'); // Push a final newline
+
+		let stdout = borrow_fd(STDOUT_FILENO);
+		write(stdout, alias_output.as_bytes())?; // Write it
+	} else {
+		for (arg,span) in argv {
+			flog!(DEBUG, arg);
+			if read_logic(|l| l.get_alias(&arg)).is_none() {
+				return Err(
+					ShErr::full(
+						ShErrKind::SyntaxErr,
+						format!("unalias: alias '{arg}' not found"),
+						span
+					)
+				)
+			};
+			write_logic(|l| l.remove_alias(&arg))
+		}
+	}
+	io_frame.unwrap().restore()?;
+	state::set_status(0);
+	Ok(())
+}

src/builtin/jobctl.rs

@@ -95,7 +95,7 @@ fn parse_job_id(arg: &str, blame: Span) -> ShResult<usize> {
 					ShErr::full(
 						ShErrKind::InternalErr,
 						"Found a job but no table id in parse_job_id()",
-						blame.into()
+						blame
 					)
 				)
 			}
@@ -121,7 +121,7 @@ fn parse_job_id(arg: &str, blame: Span) -> ShResult<usize> {
 				ShErr::full(
 					ShErrKind::InternalErr,
 					"Found a job but no table id in parse_job_id()",
-					blame.into()
+					blame
 				)
 			)
 		}
@@ -130,7 +130,7 @@ fn parse_job_id(arg: &str, blame: Span) -> ShResult<usize> {
 			ShErr::full(
 				ShErrKind::SyntaxErr,
 				format!("Invalid fd arg: {}", arg),
-				blame.into()
+				blame
 			)
 		)
 	}
@@ -151,12 +151,12 @@ pub fn jobs(node: Node, io_stack: &mut IoStack, job: &mut JobBldr) -> ShResult<(
 				ShErr::full(
 					ShErrKind::SyntaxErr,
 					"Invalid flag in jobs call",
-					span.into()
+					span
 				)
 			)
 		}
 		chars.next();
-		while let Some(ch) = chars.next() {
+		for ch in chars {
 			let flag = match ch {
 				'l' => JobCmdFlags::LONG,
 				'p' => JobCmdFlags::PIDS,
@@ -167,7 +167,7 @@ pub fn jobs(node: Node, io_stack: &mut IoStack, job: &mut JobBldr) -> ShResult<(
 					ShErr::full(
 						ShErrKind::SyntaxErr,
 						"Invalid flag in jobs call",
-						span.into()
+						span
 					)
 				)
 

src/builtin/mod.rs

@@ -14,7 +14,7 @@ pub mod flowctl;
 pub mod zoltraak;
 pub mod shopt;
 
-pub const BUILTINS: [&str;16] = [
+pub const BUILTINS: [&str;17] = [
 	"echo",
 	"cd",
 	"export",
@@ -25,6 +25,7 @@ pub const BUILTINS: [&str;16] = [
 	"fg",
 	"bg",
 	"alias",
+	"unalias",
 	"return",
 	"break",
 	"continue",
@@ -55,11 +56,12 @@ pub const BUILTINS: [&str;16] = [
 /// * If redirections are given to this function, the caller must call `IoFrame.restore()` on the returned `IoFrame`
 /// * If redirections are given, the second field of the resulting tuple will *always* be `Some()`
 /// * If no redirections are given, the second field will *always* be `None`
+type SetupReturns = ShResult<(Vec<(String,Span)>, Option<IoFrame>)>;
 pub fn setup_builtin(
 	argv: Vec<Tk>,
 	job: &mut JobBldr,
 	io_mode: Option<(&mut IoStack,Vec<Redir>)>,
-) -> ShResult<(Vec<(String,Span)>, Option<IoFrame>)> {
+) -> SetupReturns {
 	let mut argv: Vec<(String,Span)> = prepare_argv(argv)?;
 
 	let child_pgid = if let Some(pgid) = job.pgid() {

src/builtin/shift.rs

@@ -16,7 +16,7 @@ pub fn shift(node: Node, job: &mut JobBldr) -> ShResult<()> {
 				ShErr::full(
 					ShErrKind::ExecFail,
 					"Expected a number in shift args",
-					span.into()
+					span
 				)
 			)
 		};

src/builtin/source.rs

@@ -16,7 +16,7 @@ pub fn source(node: Node, job: &mut JobBldr) -> ShResult<()> {
 				ShErr::full(
 					ShErrKind::ExecFail,
 					"source: File not found",
-					span.into()
+					span
 				)
 			);
 		}
@@ -25,7 +25,7 @@ pub fn source(node: Node, job: &mut JobBldr) -> ShResult<()> {
 				ShErr::full(
 					ShErrKind::ExecFail,
 					"source: Given path is not a file",
-					span.into()
+					span
 				)
 			);
 		}

src/builtin/zoltraak.rs

@@ -4,7 +4,7 @@ use crate::{getopt::{get_opts_from_tokens, Opt, OptSet}, jobs::JobBldr, libsh::e
 
 use super::setup_builtin;
 
-pub const ZOLTRAAK_OPTS: LazyLock<OptSet> = LazyLock::new(|| {
+pub static ZOLTRAAK_OPTS: LazyLock<OptSet> = LazyLock::new(|| {
 	[
 		Opt::Long("dry-run".into()),
 		Opt::Long("confirm".into()),
@@ -90,7 +90,7 @@ pub fn zoltraak(node: Node, io_stack: &mut IoStack, job: &mut JobBldr) -> ShResu
 		}
 		if let Err(e) = annihilate(&arg, flags).blame(span) {
 			io_frame.restore()?;
-			return Err(e.into());
+			return Err(e);
 		}
 	}
 

src/expand.rs

@@ -198,7 +198,7 @@ pub fn expand_cmd_sub(raw: &str) -> ShResult<String> {
 					flog!(DEBUG, "done");
 					Ok(io_buf.as_str()?.trim().to_string())
 				}
-				_ => return Err(ShErr::simple(ShErrKind::InternalErr, "Command sub failed"))
+				_ => Err(ShErr::simple(ShErrKind::InternalErr, "Command sub failed"))
 			}
 		}
 	}
@@ -557,7 +557,7 @@ fn tokenize_prompt(raw: &str) -> Vec<PromptTk> {
 							// Collect up to 2 more octal digits
 							for _ in 0..2 {
 								if let Some(&next_ch) = chars.peek() {
-									if next_ch >= '0' && next_ch <= '7' {
+									if ('0'..='7').contains(&next_ch) {
 										octal_str.push(chars.next().unwrap());
 									} else {
 										break;
@@ -631,7 +631,7 @@ pub fn expand_prompt(raw: &str) -> ShResult<String> {
 				}
 				let pathbuf = PathBuf::from(&path);
 				let mut segments = pathbuf.iter().count();
-				let mut path_iter = pathbuf.into_iter();
+				let mut path_iter = pathbuf.iter();
 				while segments > 4 {
 					path_iter.next();
 					segments -= 1;
@@ -698,9 +698,9 @@ pub fn expand_aliases(input: String, mut already_expanded: HashSet<String>, log_
 	}
 
 	if expanded_this_iter.is_empty() {
-		return result
+		result
 	} else {
-		already_expanded.extend(expanded_this_iter.into_iter());
-		return expand_aliases(result, already_expanded, log_tab)
+		already_expanded.extend(expanded_this_iter);
+		expand_aliases(result, already_expanded, log_tab)
 	}
 }

src/fern.rs

@@ -1,3 +1,8 @@
+#![allow(
+	clippy::derivable_impls,
+	clippy::tabs_in_doc_comments,
+	clippy::while_let_on_iterator
+)]
 pub mod prelude;
 pub mod libsh;
 pub mod prompt;

src/jobs.rs

@@ -64,7 +64,7 @@ pub struct ChildProc {
 	stat: WtStat
 }
 
-impl<'a> ChildProc {
+impl ChildProc {
 	pub fn new(pid: Pid, command: Option<&str>, pgid: Option<Pid>) -> ShResult<Self> {
 		let command = command.map(|str| str.to_string());
 		let stat = if kill(pid,None).is_ok() {
@@ -86,7 +86,7 @@ impl<'a> ChildProc {
 		self.pgid
 	}
 	pub fn cmd(&self) -> Option<&str> {
-		self.command.as_ref().map(|cmd| cmd.as_str())
+		self.command.as_deref()
 	}
 	pub fn stat(&self) -> WtStat {
 		self.stat
@@ -120,6 +120,7 @@ impl<'a> ChildProc {
 	}
 }
 
+#[derive(Default,Debug)]
 pub struct JobTab {
 	fg: Option<Job>,
 	order: Vec<usize>,
@@ -129,7 +130,7 @@ pub struct JobTab {
 
 impl JobTab {
 	pub fn new() -> Self {
-		Self { fg: None, order: vec![], new_updates: vec![], jobs: vec![] }
+		Self::default()
 	}
 	pub fn take_fg(&mut self) -> Option<Job> {
 		self.fg.take()
@@ -168,7 +169,7 @@ impl JobTab {
 		job.set_tabid(tab_pos);
 		self.order.push(tab_pos);
 		if !silent {
-			write(borrow_fd(1),format!("{}", job.display(&self.order, JobCmdFlags::INIT)).as_bytes())?;
+			write(borrow_fd(1),job.display(&self.order, JobCmdFlags::INIT).as_bytes())?;
 		}
 		if tab_pos == self.jobs.len() {
 			self.jobs.push(Some(job))
@@ -246,7 +247,7 @@ impl JobTab {
 	pub fn get_fg_mut(&mut self) -> Option<&mut Job> {
 		self.fg.as_mut()
 	}
-	pub fn new_fg<'a>(&mut self, job: Job) -> ShResult<Vec<WtStat>> {
+	pub fn new_fg(&mut self, job: Job) -> ShResult<Vec<WtStat>> {
 		let pgid = job.pgid();
 		self.fg = Some(job);
 		attach_tty(pgid)?;
@@ -375,11 +376,12 @@ impl JobBldr {
 }
 
 /// A wrapper around Vec<JobBldr> with some job-specific methods
+#[derive(Default,Debug)]
 pub struct JobStack(Vec<JobBldr>);
 
 impl JobStack {
 	pub fn new() -> Self {
-		Self(vec![])
+		Self::default()
 	}
 	pub fn new_job(&mut self) {
 		self.0.push(JobBldr::new())
@@ -388,8 +390,7 @@ impl JobStack {
 		self.0.last_mut()
 	}
 	pub fn finalize_job(&mut self) -> Option<Job> {
-		let job = self.0.pop().map(|bldr| bldr.build());
-		job
+		self.0.pop().map(|bldr| bldr.build())
 	}
 }
 
@@ -453,7 +454,7 @@ impl Job {
 		self.set_stats(stat);
 		Ok(killpg(self.pgid, sig)?)
 	}
-	pub fn wait_pgrp<'a>(&mut self) -> ShResult<Vec<WtStat>> {
+	pub fn wait_pgrp(&mut self) -> ShResult<Vec<WtStat>> {
 		let mut stats = vec![];
 		flog!(TRACE, "waiting on children");
 		flog!(TRACE, self.children);
@@ -675,14 +676,14 @@ pub fn attach_tty(pgid: Pid) -> ShResult<()> {
 	new_mask.add(Signal::SIGTTIN);
 	new_mask.add(Signal::SIGTTOU);
 
-	pthread_sigmask(SigmaskHow::SIG_BLOCK, Some(&mut new_mask), Some(&mut mask_bkup))?;
+	pthread_sigmask(SigmaskHow::SIG_BLOCK, Some(&new_mask), Some(&mut mask_bkup))?;
 
 	let result = tcsetpgrp(borrow_fd(0), pgid);
 
-	pthread_sigmask(SigmaskHow::SIG_SETMASK, Some(&mut mask_bkup), Some(&mut new_mask))?;
+	pthread_sigmask(SigmaskHow::SIG_SETMASK, Some(&mask_bkup), Some(&mut new_mask))?;
 
 	match result {
-		Ok(_) => return Ok(()),
+		Ok(_) => Ok(()),
 		Err(e) => {
 			flog!(ERROR, "error while switching term control: {}",e);
 			tcsetpgrp(borrow_fd(0), getpgrp())?;

src/libsh/error.rs

@@ -114,7 +114,6 @@ impl ShErr {
 	}
 	pub fn with_span(sherr: ShErr, span: Span) -> Self {
 		let (kind,msg,notes,_) = sherr.unpack();
-		let span = span.into();
 		Self::Full { kind, msg, notes, span }
 	}
 	pub fn kind(&self) -> &ShErrKind {
@@ -300,19 +299,19 @@ impl From<std::io::Error> for ShErr {
 
 impl From<std::env::VarError> for ShErr {
 	fn from(value: std::env::VarError) -> Self {
-		ShErr::simple(ShErrKind::InternalErr, &value.to_string())
+		ShErr::simple(ShErrKind::InternalErr, value.to_string())
 	}
 }
 
 impl From<rustyline::error::ReadlineError> for ShErr {
 	fn from(value: rustyline::error::ReadlineError) -> Self {
-		ShErr::simple(ShErrKind::ParseErr, &value.to_string())
+		ShErr::simple(ShErrKind::ParseErr, value.to_string())
 	}
 }
 
 impl From<Errno> for ShErr {
 	fn from(value: Errno) -> Self {
-		ShErr::simple(ShErrKind::Errno, &value.to_string())
+		ShErr::simple(ShErrKind::Errno, value.to_string())
 	}
 }
 

src/libsh/sys.rs

@@ -35,6 +35,10 @@ pub fn save_termios() {
 	}
 }
 #[allow(static_mut_refs)]
+///Access the saved termios
+///
+///# Safety
+///This function is unsafe because it accesses a public mutable static value. This function should only ever be called after save_termios() has already been called.
 pub unsafe fn get_saved_termios() -> Option<Termios> {
 	// SAVED_TERMIOS should *only ever* be set once and accessed once
 	// Set at the start of the program, and accessed during the exit of the program to reset the termios.

src/libsh/term.rs

@@ -127,7 +127,7 @@ impl StyleSet {
 		Self { styles: vec![] }
 	}
 
-	pub fn add(mut self, style: Style) -> Self {
+	pub fn add_style(mut self, style: Style) -> Self {
 		if !self.styles.contains(&style) {
 			self.styles.push(style);
 		}
@@ -149,7 +149,7 @@ impl BitOr for Style {
 	type Output = StyleSet;
 
 	fn bitor(self, rhs: Self) -> Self::Output {
-		StyleSet::new().add(self).add(rhs)
+		StyleSet::new().add_style(self).add_style(rhs)
 	}
 }
 
@@ -158,12 +158,12 @@ impl BitOr<Style> for StyleSet {
 	type Output = StyleSet;
 
 	fn bitor(self, rhs: Style) -> Self::Output {
-		self.add(rhs)
+		self.add_style(rhs)
 	}
 }
 
 impl From<Style> for StyleSet {
 	fn from(style: Style) -> Self {
-		StyleSet::new().add(style)
+		StyleSet::new().add_style(style)
 	}
 }

src/libsh/utils.rs

@@ -71,16 +71,12 @@ impl CharDequeUtils for VecDeque<char> {
 impl TkVecUtils<Tk> for Vec<Tk> {
 	fn get_span(&self) -> Option<Span> {
 		if let Some(first_tk) = self.first() {
-			if let Some(last_tk) = self.last() {
-				Some(
+			self.last().map(|last_tk| {
 				Span::new(
 					first_tk.span.start..last_tk.span.end,
 					first_tk.source()
 				)
-				)
-			} else {
-				None
-			}
+			})
 		} else {
 			None
 		}

src/parse/execute.rs

@@ -1,7 +1,7 @@
 use std::collections::{HashSet, VecDeque};
 
 
-use crate::{builtin::{alias::alias, cd::cd, echo::echo, export::export, flowctl::flowctl, jobctl::{continue_job, jobs, JobBehavior}, pwd::pwd, shift::shift, shopt::shopt, source::source, zoltraak::zoltraak}, expand::expand_aliases, jobs::{dispatch_job, ChildProc, JobBldr, JobStack}, libsh::{error::{ShErr, ShErrKind, ShResult, ShResultExt}, utils::RedirVecUtils}, prelude::*, procio::{IoFrame, IoMode, IoStack}, state::{self, get_snapshots, read_logic, read_vars, restore_snapshot, write_logic, write_meta, write_vars, ShFunc, VarTab, LOGIC_TABLE}};
+use crate::{builtin::{alias::{alias, unalias}, cd::cd, echo::echo, export::export, flowctl::flowctl, jobctl::{continue_job, jobs, JobBehavior}, pwd::pwd, shift::shift, shopt::shopt, source::source, zoltraak::zoltraak}, expand::expand_aliases, jobs::{dispatch_job, ChildProc, JobBldr, JobStack}, libsh::{error::{ShErr, ShErrKind, ShResult, ShResultExt}, utils::RedirVecUtils}, prelude::*, procio::{IoFrame, IoMode, IoStack}, state::{self, get_snapshots, read_logic, restore_snapshot, write_logic, write_meta, write_vars, ShFunc, VarTab, LOGIC_TABLE}};
 
 use super::{lex::{Span, Tk, TkFlags, KEYWORDS}, AssignKind, CaseNode, CondNode, ConjunctNode, ConjunctOp, LoopKind, NdFlags, NdRule, Node, ParsedSrc, Redir, RedirType};
 
@@ -76,11 +76,13 @@ impl Dispatcher {
 		Ok(())
 	}
 	pub fn dispatch_node(&mut self, node: Node) -> ShResult<()> {
+		flog!(DEBUG, node.class);
 		match node.class {
 			NdRule::Conjunction {..} => self.exec_conjunction(node)?,
 			NdRule::Pipeline {..} => self.exec_pipeline(node)?,
 			NdRule::IfNode {..} => self.exec_if(node)?,
 			NdRule::LoopNode {..} => self.exec_loop(node)?,
+			NdRule::ForNode {..} => self.exec_for(node)?,
 			NdRule::CaseNode {..} => self.exec_case(node)?,
 			NdRule::BraceGrp {..} => self.exec_brc_grp(node)?,
 			NdRule::FuncDef {..} => self.exec_func_def(node)?,
@@ -169,7 +171,7 @@ impl Dispatcher {
 
 		if let Err(e) = exec_input(subsh_body) {
 			restore_snapshot(snapshot);
-			return Err(e.into())
+			return Err(e)
 		}
 
 		restore_snapshot(snapshot);
@@ -205,7 +207,7 @@ impl Dispatcher {
 						return Ok(())
 					}
 					_ => return {
-						Err(e.into())
+						Err(e)
 					}
 				}
 
@@ -295,7 +297,7 @@ impl Dispatcher {
 
 			if let Err(e) = self.dispatch_node(*cond.clone()) {
 				state::set_status(1);
-				return Err(e.into());
+				return Err(e);
 			}
 
 			let status = state::get_status();
@@ -312,7 +314,7 @@ impl Dispatcher {
 								state::set_status(*code);
 								continue 'outer
 							}
-							_ => return Err(e.into())
+							_ => return Err(e)
 						}
 					}
 				}
@@ -323,6 +325,48 @@ impl Dispatcher {
 
 		Ok(())
 	}
+	fn exec_for(&mut self, for_stmt: Node) -> ShResult<()> {
+		let NdRule::ForNode { vars, arr, body } = for_stmt.class else {
+			unreachable!();
+		};
+
+		let io_frame = self.io_stack.pop_frame();
+		let (_, mut body_frame) = io_frame.split_frame();
+		let (_, out_redirs) = for_stmt.redirs.split_by_channel();
+		body_frame.extend(out_redirs);
+
+		'outer: for chunk in arr.chunks(vars.len()) {
+			let empty = Tk::default();
+			let chunk_iter = vars.iter().zip(
+				chunk.iter().chain(std::iter::repeat(&empty)) // Or however you define an empty token
+			);
+
+			for (var, val) in chunk_iter {
+				write_vars(|v| v.set_var(&var.to_string(), &val.to_string(), false));
+			}
+
+			self.io_stack.push(body_frame.clone());
+
+			for node in body.clone() {
+				if let Err(e) = self.dispatch_node(node) {
+					match e.kind() {
+						ShErrKind::LoopBreak(code) => {
+							state::set_status(*code);
+							break 'outer
+						}
+						ShErrKind::LoopContinue(code) => {
+							state::set_status(*code);
+							continue 'outer
+						}
+						_ => return Err(e)
+					}
+				}
+			}
+
+		}
+
+		Ok(())
+	}
 	fn exec_if(&mut self, if_stmt: Node) -> ShResult<()> {
 		let NdRule::IfNode { cond_nodes, else_block } = if_stmt.class else {
 			unreachable!();
@@ -340,7 +384,7 @@ impl Dispatcher {
 
 			if let Err(e) = self.dispatch_node(*cond) {
 				state::set_status(1);
-				return Err(e.into());
+				return Err(e);
 			}
 
 			match state::get_status() {
@@ -409,6 +453,7 @@ impl Dispatcher {
 			"bg" => continue_job(cmd, curr_job_mut, JobBehavior::Background),
 			"jobs" => jobs(cmd, io_stack_mut, curr_job_mut),
 			"alias" => alias(cmd, io_stack_mut, curr_job_mut),
+			"unalias" => unalias(cmd, io_stack_mut, curr_job_mut),
 			"return" => flowctl(cmd, ShErrKind::FuncReturn(0)),
 			"break" => flowctl(cmd, ShErrKind::LoopBreak(0)),
 			"continue" => flowctl(cmd, ShErrKind::LoopContinue(0)),
@@ -424,7 +469,7 @@ impl Dispatcher {
 
 		if let Err(e) = result {
 			state::set_status(1);
-			return Err(e.into())
+			return Err(e)
 		}
 		Ok(())
 	}
@@ -518,7 +563,7 @@ pub fn prepare_argv(argv: Vec<Tk>) -> ShResult<Vec<(String,Span)>> {
 	Ok(args)
 }
 
-pub fn run_fork<'t,C,P>(
+pub fn run_fork<C,P>(
 	io_frame: IoFrame,
 	exec_args: Option<ExecArgs>,
 	job: &mut JobBldr,
@@ -554,7 +599,7 @@ pub fn def_child_action(mut io_frame: IoFrame, exec_args: Option<ExecArgs>) {
 	let cmd = &exec_args.cmd.0;
 	let span = exec_args.cmd.1;
 
-	let Err(e) = execvpe(&cmd, &exec_args.argv, &exec_args.envp);
+	let Err(e) = execvpe(cmd, &exec_args.argv, &exec_args.envp);
 
 	let cmd = cmd.to_str().unwrap().to_string();
 	match e {

src/parse/lex.rs

@@ -4,7 +4,7 @@ use bitflags::bitflags;
 
 use crate::{builtin::BUILTINS, libsh::{error::{ShErr, ShErrKind, ShResult}, utils::CharDequeUtils}, prelude::*};
 
-pub const KEYWORDS: [&'static str;14] = [
+pub const KEYWORDS: [&str;14] = [
 	"if",
 	"then",
 	"elif",
@@ -21,7 +21,7 @@ pub const KEYWORDS: [&'static str;14] = [
 	"esac",
 ];
 
-pub const OPENERS: [&'static str;6] = [
+pub const OPENERS: [&str;6] = [
 	"if",
 	"while",
 	"until",
@@ -103,12 +103,6 @@ impl Tk {
 	pub fn new(class: TkRule, span: Span) -> Self {
 		Self { class, span, flags: TkFlags::empty() }
 	}
-	pub fn to_string(&self) -> String {
-		match &self.class {
-			TkRule::Expanded { exp } => exp.join(" "),
-			_ => self.span.as_str().to_string()
-		}
-	}
 	pub fn as_str(&self) -> &str {
 		self.span.as_str()
 	}
@@ -264,7 +258,7 @@ impl LexStream {
 								ShErr::full(
 									ShErrKind::ParseErr,
 									"Invalid redirection",
-									Span::new(self.cursor..pos, self.source.clone()).into()
+									Span::new(self.cursor..pos, self.source.clone())
 								)
 							));
 						} else {
@@ -471,13 +465,13 @@ impl LexStream {
 				ShErr::full(
 					ShErrKind::ParseErr,
 					"Unterminated quote",
-					new_tk.span.into(),
+					new_tk.span,
 				)
 			);
 		}
 		// TODO: clean up this mess
 		if self.flags.contains(LexFlags::NEXT_IS_CMD) {
-			if is_keyword(&new_tk.span.as_str()) {
+			if is_keyword(new_tk.span.as_str()) {
 				if matches!(new_tk.span.as_str(), "case" | "select" | "for") {
 					self.flags |= LexFlags::EXPECTING_IN;
 					new_tk.flags |= TkFlags::KEYWORD;
@@ -485,7 +479,7 @@ impl LexStream {
 				} else {
 					new_tk.flags |= TkFlags::KEYWORD;
 				}
-			} else if is_assignment(&new_tk.span.as_str()) {
+			} else if is_assignment(new_tk.span.as_str()) {
 				new_tk.flags |= TkFlags::ASSIGN;
 			} else {
 				if self.flags.contains(LexFlags::EXPECTING_IN) {
@@ -503,12 +497,10 @@ impl LexStream {
 				}
 				self.set_next_is_cmd(false);
 			}
-		} else if self.flags.contains(LexFlags::EXPECTING_IN) {
-			if new_tk.span.as_str() == "in" {
+		} else if self.flags.contains(LexFlags::EXPECTING_IN) && new_tk.span.as_str() == "in" {
 			new_tk.flags |= TkFlags::KEYWORD;
 			self.flags &= !LexFlags::EXPECTING_IN;
 		}
-		}
 		self.cursor = pos;
 		Ok(new_tk)
 	}

src/parse/mod.rs

@@ -49,7 +49,6 @@ impl ParsedSrc {
 		let mut errors = vec![];
 		let mut nodes = vec![];
 		for parse_result in ParseStream::new(tokens) {
-			flog!(DEBUG, parse_result);
 			match parse_result  {
 				Ok(node) => nodes.push(node),
 				Err(error) => errors.push(error)
@@ -412,6 +411,24 @@ impl ParseStream {
 		assert!(num_consumed <= self.tokens.len());
 		self.tokens = self.tokens[num_consumed..].to_vec();
 	}
+	/// This tries to match on different stuff that can appear in a command position
+	/// Matches shell commands like if-then-fi, pipelines, etc.
+	/// Ordered from specialized to general, with more generally matchable stuff appearing at the bottom
+	/// The check_pipelines parameter is used to prevent left-recursion issues in self.parse_pipeln()
+	fn parse_block(&mut self, check_pipelines: bool) -> ShResult<Option<Node>> {
+		try_match!(self.parse_func_def()?);
+		try_match!(self.parse_brc_grp(false /* from_func_def */)?);
+		try_match!(self.parse_case()?);
+		try_match!(self.parse_loop()?);
+		try_match!(self.parse_for()?);
+		try_match!(self.parse_if()?);
+		if check_pipelines {
+			try_match!(self.parse_pipeln()?);
+		} else {
+			try_match!(self.parse_cmd()?);
+		}
+		Ok(None)
+	}
 	fn parse_cmd_list(&mut self) -> ShResult<Option<Node>> {
 		let mut elements = vec![];
 		let mut node_tks = vec![];
@@ -446,26 +463,8 @@ impl ParseStream {
 			}))
 		}
 	}
-	/// This tries to match on different stuff that can appear in a command position
-	/// Matches shell commands like if-then-fi, pipelines, etc.
-	/// Ordered from specialized to general, with more generally matchable stuff appearing at the bottom
-	/// The check_pipelines parameter is used to prevent left-recursion issues in self.parse_pipeln()
-	fn parse_block(&mut self, check_pipelines: bool) -> ShResult<Option<Node>> {
-		try_match!(self.parse_func_def()?);
-		try_match!(self.parse_brc_grp(false /* from_func_def */)?);
-		try_match!(self.parse_case()?);
-		try_match!(self.parse_loop()?);
-		try_match!(self.parse_if()?);
-		if check_pipelines {
-			try_match!(self.parse_pipeln()?);
-		} else {
-			try_match!(self.parse_cmd()?);
-		}
-		Ok(None)
-	}
 	fn parse_func_def(&mut self) -> ShResult<Option<Node>> {
 		let mut node_tks: Vec<Tk> = vec![];
-		let name;
 		let body;
 
 		if !is_func_name(self.peek_tk()) {
@@ -473,7 +472,7 @@ impl ParseStream {
 		}
 		let name_tk = self.next_tk().unwrap();
 		node_tks.push(name_tk.clone());
-		name = name_tk;
+		let name = name_tk;
 
 		let Some(brc_grp) = self.parse_brc_grp(true /* from_func_def */)? else {
 			return Err(parse_err_full(
@@ -543,7 +542,7 @@ impl ParseStream {
 							ShErr::full(
 								ShErrKind::ParseErr,
 								"Expected a filename after this redirection",
-								tk.span.clone().into()
+								tk.span.clone()
 							)
 						)
 					};
@@ -582,7 +581,7 @@ impl ParseStream {
 		// Needs a pattern token
 		// Followed by any number of CaseNodes
 		let mut node_tks: Vec<Tk> = vec![];
-		let pattern: Tk;
+
 		let mut case_blocks: Vec<CaseNode> = vec![];
 		let redirs: Vec<Redir> = vec![];
 
@@ -610,7 +609,8 @@ impl ParseStream {
 			return Err(pat_err)
 		}
 
-		pattern = pat_tk;
+		let pattern: Tk = pat_tk;
+
 		node_tks.push(pattern.clone());
 
 		if !self.check_keyword("in") || !self.next_tk_is_some() {
@@ -764,7 +764,7 @@ impl ParseStream {
 						ShErr::full(
 							ShErrKind::ParseErr,
 							"Expected a filename after this redirection",
-							tk.span.clone().into()
+							tk.span.clone()
 						)
 					)
 				};
@@ -799,9 +799,109 @@ impl ParseStream {
 		};
 		Ok(Some(node))
 	}
+	fn parse_for(&mut self) -> ShResult<Option<Node>> {
+		let mut node_tks: Vec<Tk> = vec![];
+		let mut vars: Vec<Tk> = vec![];
+		let mut arr: Vec<Tk> = vec![];
+		let mut body: Vec<Node> = vec![];
+		let mut redirs: Vec<Redir> = vec![];
+
+		if !self.check_keyword("for") || !self.next_tk_is_some() {
+			return Ok(None)
+		}
+		node_tks.push(self.next_tk().unwrap());
+
+		while let Some(tk) = self.next_tk() {
+			node_tks.push(tk.clone());
+			if tk.as_str() == "in" {
+				break
+			} else {
+				vars.push(tk.clone());
+			}
+		}
+
+		while let Some(tk) = self.next_tk() {
+			node_tks.push(tk.clone());
+			if tk.class == TkRule::Sep {
+				break
+			} else {
+				arr.push(tk.clone());
+			}
+		}
+
+		if vars.is_empty() {
+			self.panic_mode(&mut node_tks);
+			return Err(parse_err_full("This for loop is missing a variable", &node_tks.get_span().unwrap()))
+		}
+		if arr.is_empty() {
+			self.panic_mode(&mut node_tks);
+			return Err(parse_err_full("This for loop is missing an array", &node_tks.get_span().unwrap()))
+		}
+		if !self.check_keyword("do") || !self.next_tk_is_some() {
+			self.panic_mode(&mut node_tks);
+			return Err(parse_err_full("Missing a 'do' for this for loop", &node_tks.get_span().unwrap()))
+		}
+		node_tks.push(self.next_tk().unwrap());
+		self.catch_separator(&mut node_tks);
+
+		while let Some(node) = self.parse_block(true)? {
+			body.push(node)
+		}
+
+		if !self.check_keyword("done") || !self.next_tk_is_some() {
+			self.panic_mode(&mut node_tks);
+			return Err(parse_err_full("Missing a 'done' after this for loop", &node_tks.get_span().unwrap()))
+		}
+		node_tks.push(self.next_tk().unwrap());
+
+		while self.check_redir() {
+			let tk = self.next_tk().unwrap();
+			node_tks.push(tk.clone());
+			let redir_bldr = tk.span.as_str().parse::<RedirBldr>().unwrap();
+			if redir_bldr.io_mode.is_none() {
+				let path_tk = self.next_tk();
+
+				if path_tk.clone().is_none_or(|tk| tk.class == TkRule::EOI) {
+					return Err(
+						ShErr::full(
+							ShErrKind::ParseErr,
+							"Expected a filename after this redirection",
+							tk.span.clone()
+						)
+					)
+				};
+
+				let path_tk = path_tk.unwrap();
+				node_tks.push(path_tk.clone());
+				let redir_class = redir_bldr.class.unwrap();
+				let pathbuf = PathBuf::from(path_tk.span.as_str());
+
+				let Ok(file) = get_redir_file(redir_class, pathbuf) else {
+					self.panic_mode(&mut node_tks);
+					return Err(parse_err_full(
+							"Error opening file for redirection",
+							&path_tk.span
+					));
+				};
+
+				let io_mode = IoMode::file(redir_bldr.tgt_fd.unwrap(), file);
+				let redir_bldr = redir_bldr.with_io_mode(io_mode);
+				let redir = redir_bldr.build();
+				redirs.push(redir);
+			}
+		}
+
+		let node = Node {
+			class: NdRule::ForNode { vars, arr, body },
+			flags: NdFlags::empty(),
+			redirs,
+			tokens: node_tks
+		};
+		Ok(Some(node))
+	}
 	fn parse_loop(&mut self) -> ShResult<Option<Node>> {
 		// Requires a single CondNode and a LoopKind
-		let loop_kind: LoopKind;
+
 		let cond_node: CondNode;
 		let mut node_tks = vec![];
 
@@ -809,7 +909,7 @@ impl ParseStream {
 			return Ok(None)
 		}
 		let loop_tk = self.next_tk().unwrap();
-		loop_kind = loop_tk.span
+		let loop_kind: LoopKind = loop_tk.span
 			.as_str()
 			.parse() // LoopKind implements FromStr
 			.unwrap();
@@ -876,14 +976,12 @@ impl ParseStream {
 			cmds.push(cmd);
 			if *self.next_tk_class() != TkRule::Pipe || is_punctuated {
 				break
-			} else {
-				if let Some(pipe) = self.next_tk() {
+			} else if let Some(pipe) = self.next_tk() {
 				node_tks.push(pipe)
 			} else {
 				break
 			}
 		}
-		}
 		if cmds.is_empty() {
 			Ok(None)
 		} else {
@@ -915,7 +1013,7 @@ impl ParseStream {
 				break
 
 			} else if is_assignment {
-				let Some(assign) = self.parse_assignment(&prefix_tk) else {
+				let Some(assign) = self.parse_assignment(prefix_tk) else {
 					break
 				};
 				node_tks.push(prefix_tk.clone());
@@ -958,7 +1056,7 @@ impl ParseStream {
 								ShErr::full(
 									ShErrKind::ParseErr,
 									"Expected a filename after this redirection",
-									tk.span.clone().into()
+									tk.span.clone()
 								)
 							)
 						};
@@ -1004,7 +1102,7 @@ impl ParseStream {
 		let mut pos = token.span.start;
 
 		while let Some(ch) = chars.next() {
-			if !assign_kind.is_none() {
+			if assign_kind.is_some() {
 				match ch {
 					'\\' => {
 						pos += ch.len_utf8();
@@ -1100,8 +1198,6 @@ impl ParseStream {
 impl Iterator for ParseStream {
 	type Item = ShResult<Node>;
 	fn next(&mut self) -> Option<Self::Item> {
-		flog!(DEBUG, "parsing");
-		flog!(DEBUG, self.tokens);
 		// Empty token vector or only SOI/EOI tokens, nothing to do
 		if self.tokens.is_empty() || self.tokens.len() == 1 {
 			return None
@@ -1117,21 +1213,19 @@ impl Iterator for ParseStream {
 			}
 		}
 		let result = self.parse_cmd_list();
-		flog!(DEBUG, result);
-		flog!(DEBUG, self.tokens);
 		match result {
 			Ok(Some(node)) => {
-				return Some(Ok(node));
+				Some(Ok(node))
 			}
-			Ok(None) => return None,
+			Ok(None) => None,
 			Err(e) => {
-				return Some(Err(e))
+				Some(Err(e))
 			}
 		}
 	}
 }
 
-fn node_is_punctuated(tokens: &Vec<Tk>) -> bool {
+fn node_is_punctuated(tokens: &[Tk]) -> bool {
 	tokens.last().is_some_and(|tk| {
 		matches!(tk.class, TkRule::Sep)
 	})
@@ -1153,7 +1247,6 @@ fn get_redir_file(class: RedirType, path: PathBuf) -> ShResult<File> {
 		}
 		RedirType::Append => {
 			OpenOptions::new()
-				.write(true)
 				.create(true)
 				.append(true)
 				.open(Path::new(&path))
@@ -1167,7 +1260,7 @@ fn parse_err_full(reason: &str, blame: &Span) -> ShErr {
 	ShErr::full(
 		ShErrKind::ParseErr,
 		reason,
-		blame.clone().into()
+		blame.clone()
 	)
 }
 
@@ -1192,7 +1285,7 @@ pub fn node_operation<F1,F2>(node: &mut Node, filter: &F1, operation: &mut F2)
 		F2: FnMut(&mut Node)
 {
 	let check_node = |node: &mut Node, filter: &F1, operation: &mut F2| {
-		if filter(&node) {
+		if filter(node) {
 			operation(node);
 		} else {
 			node_operation::<F1,F2>(node, filter, operation);
@@ -1254,7 +1347,7 @@ pub fn node_operation<F1,F2>(node: &mut Node, filter: &F1, operation: &mut F2)
 				check_node(cmd,filter,operation);
 			}
 		}
-		NdRule::Assignment { kind: _, var: _, val: _ } => return, // No nodes to check
+		NdRule::Assignment { kind: _, var: _, val: _ } => (), // No nodes to check
 		NdRule::BraceGrp { ref mut body } => {
 			for body_node in body {
 				check_node(body_node,filter,operation);

src/procio.rs

@@ -192,7 +192,7 @@ pub struct IoStack {
 	stack: Vec<IoFrame>,
 }
 
-impl<'e> IoStack {
+impl IoStack {
 	pub fn new() -> Self {
 		Self {
 			stack: vec![IoFrame::new()],

src/prompt/mod.rs

@@ -80,7 +80,7 @@ pub fn read_line() -> ShResult<String> {
 		}
 		Err(ReadlineError::Interrupted) => Ok(String::new()),
 		Err(e) => {
-			return Err(e.into())
+			Err(e.into())
 		}
 	}
 }

src/prompt/readline.rs

@@ -5,12 +5,13 @@ use rustyline::{completion::Completer, highlight::Highlighter, hint::{Hint, Hint
 use crate::{libsh::term::{Style, Styled}, parse::{lex::{LexFlags, LexStream}, ParseStream}};
 use crate::prelude::*;
 
+#[derive(Default,Debug)]
 pub struct FernReadline {
 }
 
 impl FernReadline {
 	pub fn new() -> Self {
-		Self { }
+		Self::default()
 	}
 }
 
@@ -50,7 +51,7 @@ impl Hinter for FernReadline {
 	fn hint(&self, line: &str, pos: usize, ctx: &rustyline::Context<'_>) -> Option<Self::Hint> {
 		let ent = ctx.history().search(
 			line,
-			ctx.history().len() - 1,
+			ctx.history().len().saturating_sub(1),
 			rustyline::history::SearchDirection::Reverse
 		).ok()??;
 		let entry_raw = ent.entry.get(pos..)?.to_string();

src/shopt.rs

@@ -15,11 +15,11 @@ pub enum FernBellStyle {
 impl FromStr for FernBellStyle {
 	type Err = ShErr;
 	fn from_str(s: &str) -> Result<Self, Self::Err> {
-		match s.to_ascii_uppercase().as_str() {
+		match s.to_ascii_lowercase().as_str() {
 			"audible" => Ok(Self::Audible),
 			"visible" => Ok(Self::Visible),
 			"disable" => Ok(Self::Disable),
-			_ => return Err(
+			_ => Err(
 				ShErr::simple(
 					ShErrKind::SyntaxErr,
 					format!("Invalid bell style '{s}'")
@@ -29,9 +29,9 @@ impl FromStr for FernBellStyle {
 	}
 }
 
-impl Into<BellStyle> for FernBellStyle {
-	fn into(self) -> BellStyle {
-		match self {
+impl From<FernBellStyle> for BellStyle {
+	fn from(val: FernBellStyle) -> Self {
+		match val {
 			FernBellStyle::Audible => BellStyle::Audible,
 			FernBellStyle::Visible => BellStyle::Visible,
 			FernBellStyle::Disable => BellStyle::None
@@ -56,11 +56,11 @@ pub enum FernEditMode {
 	Emacs
 }
 
-impl Into<EditMode> for FernEditMode {
-	fn into(self) -> EditMode {
-		match self {
-			Self::Vi => EditMode::Vi,
-			Self::Emacs => EditMode::Emacs
+impl From<FernEditMode> for EditMode {
+	fn from(val: FernEditMode) -> Self {
+		match val {
+			FernEditMode::Vi => EditMode::Vi,
+			FernEditMode::Emacs => EditMode::Emacs
 		}
 	}
 }
@@ -71,7 +71,7 @@ impl FromStr for FernEditMode {
 		match s.to_ascii_lowercase().as_str() {
 			"vi" => Ok(Self::Vi),
 			"emacs" => Ok(Self::Emacs),
-			_ => return Err(
+			_ => Err(
 				ShErr::simple(
 					ShErrKind::SyntaxErr,
 					format!("Invalid edit mode '{s}'")
@@ -167,7 +167,7 @@ impl ShOpts {
 			"core" => self.core.get(&remainder),
 			"prompt" => self.prompt.get(&remainder),
 			_ => {
-				return Err(
+				Err(
 					ShErr::simple(
 						ShErrKind::SyntaxErr,
 						"shopt: Expected 'core' or 'prompt' in shopt key"
@@ -328,47 +328,47 @@ impl ShOptCore {
 
 		match query {
 			"dotglob" => {
-				let mut output = format!("Include hidden files in glob patterns\n");
+				let mut output = String::from("Include hidden files in glob patterns\n");
 				output.push_str(&format!("{}",self.dotglob));
 				Ok(Some(output))
 			}
 			"autocd" => {
-				let mut output = format!("Allow navigation to directories by passing the directory as a command directly\n");
+				let mut output = String::from("Allow navigation to directories by passing the directory as a command directly\n");
 				output.push_str(&format!("{}",self.autocd));
 				Ok(Some(output))
 			}
 			"hist_ignore_dupes" => {
-				let mut output = format!("Ignore consecutive duplicate command history entries\n");
+				let mut output = String::from("Ignore consecutive duplicate command history entries\n");
 				output.push_str(&format!("{}",self.hist_ignore_dupes));
 				Ok(Some(output))
 			}
 			"max_hist" => {
-				let mut output = format!("Maximum number of entries in the command history file (default '.fernhist')\n");
+				let mut output = String::from("Maximum number of entries in the command history file (default '.fernhist')\n");
 				output.push_str(&format!("{}",self.max_hist));
 				Ok(Some(output))
 			}
 			"interactive_comments" => {
-				let mut output = format!("Whether or not to allow comments in interactive mode\n");
+				let mut output = String::from("Whether or not to allow comments in interactive mode\n");
 				output.push_str(&format!("{}",self.interactive_comments));
 				Ok(Some(output))
 			}
 			"auto_hist" => {
-				let mut output = format!("Whether or not to automatically save commands to the command history file\n");
+				let mut output = String::from("Whether or not to automatically save commands to the command history file\n");
 				output.push_str(&format!("{}",self.auto_hist));
 				Ok(Some(output))
 			}
 			"bell_style" => {
-				let mut output = format!("What type of bell style to use for the bell character\n");
+				let mut output = String::from("What type of bell style to use for the bell character\n");
 				output.push_str(&format!("{}",self.bell_style));
 				Ok(Some(output))
 			}
 			"max_recurse_depth" => {
-				let mut output = format!("Maximum limit of recursive shell function calls\n");
+				let mut output = String::from("Maximum limit of recursive shell function calls\n");
 				output.push_str(&format!("{}",self.max_recurse_depth));
 				Ok(Some(output))
 			}
 			_ => {
-				return Err(
+				Err(
 					ShErr::simple(
 						ShErrKind::SyntaxErr,
 						format!("shopt: Unexpected 'core' option '{query}'")
@@ -531,32 +531,32 @@ impl ShOptPrompt {
 
 		match query {
 			"trunc_prompt_path" => {
-				let mut output = format!("Maximum number of path segments used in the '\\W' prompt escape sequence\n");
+				let mut output = String::from("Maximum number of path segments used in the '\\W' prompt escape sequence\n");
 				output.push_str(&format!("{}",self.trunc_prompt_path));
 				Ok(Some(output))
 			}
 			"edit_mode" => {
-				let mut output = format!("The style of editor shortcuts used in the line-editing of the prompt\n");
+				let mut output = String::from("The style of editor shortcuts used in the line-editing of the prompt\n");
 				output.push_str(&format!("{}",self.edit_mode));
 				Ok(Some(output))
 			}
 			"comp_limit" => {
-				let mut output = format!("Maximum number of completion candidates displayed upon pressing tab\n");
+				let mut output = String::from("Maximum number of completion candidates displayed upon pressing tab\n");
 				output.push_str(&format!("{}",self.comp_limit));
 				Ok(Some(output))
 			}
 			"prompt_highlight" => {
-				let mut output = format!("Whether to enable or disable syntax highlighting on the prompt\n");
+				let mut output = String::from("Whether to enable or disable syntax highlighting on the prompt\n");
 				output.push_str(&format!("{}",self.prompt_highlight));
 				Ok(Some(output))
 			}
 			"tab_stop" => {
-				let mut output = format!("The number of spaces used by the tab character '\\t'\n");
+				let mut output = String::from("The number of spaces used by the tab character '\\t'\n");
 				output.push_str(&format!("{}",self.tab_stop));
 				Ok(Some(output))
 			}
 			"custom" => {
-				let mut output = format!("A table of custom 'modules' executed as shell functions for prompt scripting\n");
+				let mut output = String::from("A table of custom 'modules' executed as shell functions for prompt scripting\n");
 				output.push_str("Current modules: \n");
 				for key in self.custom.keys() {
 					output.push_str(&format!("  - {key}\n"));
@@ -564,7 +564,7 @@ impl ShOptPrompt {
 				Ok(Some(output.trim().to_string()))
 			}
 			_ => {
-				return Err(
+				Err(
 					ShErr::simple(
 						ShErrKind::SyntaxErr,
 						format!("shopt: Unexpected 'core' option '{query}'")
@@ -599,7 +599,7 @@ impl Display for ShOptPrompt {
 		output.push(format!("comp_limit = {}", self.comp_limit));
 		output.push(format!("prompt_highlight = {}", self.prompt_highlight));
 		output.push(format!("tab_stop = {}", self.tab_stop));
-		output.push(format!("prompt modules: "));
+		output.push(String::from("prompt modules: "));
 		for key in self.custom.keys() {
 			output.push(format!("  - {key}"));
 		}

src/state.rs

@@ -51,7 +51,7 @@ impl Deref for ShFunc {
 /// The logic table for the shell
 ///
 /// Contains aliases and functions
-#[derive(Clone,Debug)]
+#[derive(Default,Clone,Debug)]
 pub struct LogTab {
 	functions: HashMap<String,ShFunc>,
 	aliases: HashMap<String,String>
@@ -59,7 +59,7 @@ pub struct LogTab {
 
 impl LogTab {
 	pub fn new() -> Self {
-		Self { functions: HashMap::new(), aliases: HashMap::new() }
+		Self::default()
 	}
 	pub fn insert_func(&mut self, name: &str, src: ShFunc) {
 		self.functions.insert(name.into(), src);
@@ -79,6 +79,12 @@ impl LogTab {
 	pub fn get_alias(&self, name: &str) -> Option<String> {
 		self.aliases.get(name).cloned()
 	}
+	pub fn remove_alias(&mut self, name: &str) {
+		flog!(DEBUG, self.aliases);
+		flog!(DEBUG, name);
+		self.aliases.remove(name);
+		flog!(DEBUG, self.aliases);
+	}
 	pub fn clear_aliases(&mut self) {
 		self.aliases.clear()
 	}
@@ -109,7 +115,7 @@ impl Deref for Var {
 	}
 }
 
-#[derive(Clone,Debug)]
+#[derive(Default,Clone,Debug)]
 pub struct VarTab {
 	vars: HashMap<String,Var>,
 	params: HashMap<char,String>,
@@ -299,13 +305,14 @@ impl VarTab {
 }
 
 /// A table of metadata for the shell
+#[derive(Default,Debug)]
 pub struct MetaTab {
 	runtime_start: Option<Instant>
 }
 
 impl MetaTab {
 	pub fn new() -> Self {
-		Self { runtime_start: None }
+		Self::default()
 	}
 	pub fn start_timer(&mut self) {
 		self.runtime_start = Some(Instant::now());

src/tests/error.rs

@@ -13,7 +13,7 @@ fn cmd_not_found() {
 #[test]
 fn unclosed_subsh() {
 	let input = "(foo";
-	let token = LexStream::new(Arc::new(input.into()), LexFlags::empty()).skip(1).next().unwrap();
+	let token = LexStream::new(Arc::new(input.into()), LexFlags::empty()).nth(1).unwrap();
 	let Err(err) = token else {
 		panic!("{:?}",token);
 	};
@@ -25,7 +25,7 @@ fn unclosed_subsh() {
 #[test]
 fn unclosed_dquote() {
 	let input = "\"foo bar";
-	let token = LexStream::new(Arc::new(input.into()), LexFlags::empty()).skip(1).next().unwrap();
+	let token = LexStream::new(Arc::new(input.into()), LexFlags::empty()).nth(1).unwrap();
 	let Err(err) = token else {
 		panic!();
 	};
@@ -37,7 +37,7 @@ fn unclosed_dquote() {
 #[test]
 fn unclosed_squote() {
 	let input = "'foo bar";
-	let token = LexStream::new(Arc::new(input.into()), LexFlags::empty()).skip(1).next().unwrap();
+	let token = LexStream::new(Arc::new(input.into()), LexFlags::empty()).nth(1).unwrap();
 	let Err(err) = token else {
 		panic!();
 	};

src/tests/expand.rs

@@ -5,7 +5,7 @@ use super::*;
 #[test]
 fn simple_expansion() {
 	let varsub = "$foo";
-	write_vars(|v| v.set_var("foo", "this is the value of the variable".into(), false));
+	write_vars(|v| v.set_var("foo", "this is the value of the variable", false));
 
 	let mut tokens: Vec<Tk> = LexStream::new(Arc::new(varsub.to_string()), LexFlags::empty())
 		.map(|tk| tk.unwrap())
@@ -13,7 +13,6 @@ fn simple_expansion() {
 		.collect();
 	let var_tk = tokens.pop().unwrap();
 
-	let var_span = var_tk.span.clone();
 	let exp_tk = var_tk.expand().unwrap();
 	write_vars(|v| v.vars_mut().clear());
 	insta::assert_debug_snapshot!(exp_tk.get_words())
@@ -33,7 +32,7 @@ fn expand_alias_simple() {
 		l.insert_alias("foo", "echo foo");
 		let input = String::from("foo");
 
-		let result = expand_aliases(input, HashSet::new(), &l);
+		let result = expand_aliases(input, HashSet::new(), l);
 		assert_eq!(result.as_str(),"echo foo");
 		l.clear_aliases();
 	});
@@ -45,7 +44,7 @@ fn expand_alias_in_if() {
 		l.insert_alias("foo", "echo foo");
 		let input = String::from("if foo; then echo bar; fi");
 
-		let result = expand_aliases(input, HashSet::new(), &l);
+		let result = expand_aliases(input, HashSet::new(), l);
 		assert_eq!(result.as_str(),"if echo foo; then echo bar; fi");
 		l.clear_aliases();
 	});
@@ -69,7 +68,7 @@ fn expand_alias_multiline() {
 			fi
 		");
 
-		let result = expand_aliases(input, HashSet::new(), &l);
+		let result = expand_aliases(input, HashSet::new(), l);
 		assert_eq!(result,expected)
 	});
 }
@@ -82,7 +81,7 @@ fn expand_multiple_aliases() {
 		l.insert_alias("biz", "echo biz");
 		let input = String::from("foo; bar; biz");
 
-		let result = expand_aliases(input, HashSet::new(), &l);
+		let result = expand_aliases(input, HashSet::new(), l);
 		assert_eq!(result.as_str(),"echo foo; echo bar; echo biz");
 	});
 }
@@ -93,7 +92,7 @@ fn alias_in_arg_position() {
 		l.insert_alias("foo", "echo foo");
 		let input = String::from("echo foo");
 
-		let result = expand_aliases(input.clone(), HashSet::new(), &l);
+		let result = expand_aliases(input.clone(), HashSet::new(), l);
 		assert_eq!(input,result);
 		l.clear_aliases();
 	});
@@ -106,7 +105,7 @@ fn expand_recursive_alias() {
 		l.insert_alias("bar", "foo bar");
 
 		let input = String::from("bar");
-		let result = expand_aliases(input, HashSet::new(), &l);
+		let result = expand_aliases(input, HashSet::new(), l);
 		assert_eq!(result.as_str(),"echo foo bar");
 	});
 }
@@ -117,7 +116,7 @@ fn test_infinite_recursive_alias() {
 		l.insert_alias("foo", "foo bar");
 
 		let input = String::from("foo");
-		let result = expand_aliases(input, HashSet::new(), &l);
+		let result = expand_aliases(input, HashSet::new(), l);
 		assert_eq!(result.as_str(),"foo bar");
 		l.clear_aliases();
 	});

src/tests/getopt.rs

@@ -9,7 +9,7 @@ fn getopt_from_argv() {
 	let node = get_nodes("echo -n -e foo", |node| matches!(node.class, NdRule::Command {..}))
 		.pop()
 		.unwrap();
-	let NdRule::Command { assignments, argv } = node.class else {
+	let NdRule::Command { assignments: _, argv } = node.class else {
 		panic!()
 	};
 

src/tests/mod.rs

@@ -7,7 +7,7 @@ use crate::libsh::error::{
 use crate::parse::{
 	node_operation, Node, NdRule, ParseStream,
 	lex::{
-		Tk, TkFlags, TkRule, LexFlags, LexStream
+		Tk, TkRule, LexFlags, LexStream
 	}
 };
 use crate::expand::{

src/tests/parser.rs

@@ -217,7 +217,7 @@ fn parse_cursed() {
 fn test_node_operation() {
 	let input = String::from("echo hello world; echo foo bar");
 	let mut check_nodes = vec![];
-	let mut tokens: Vec<Tk> = LexStream::new(input.into(), LexFlags::empty())
+	let tokens: Vec<Tk> = LexStream::new(input.into(), LexFlags::empty())
 		.map(|tk| tk.unwrap())
 		.collect();
 

src/tests/term.rs

@@ -29,7 +29,7 @@ fn styled_background() {
 #[test]
 fn styled_set() {
 	let input = "multi-style text";
-	let style_set = StyleSet::new().add(Style::Magenta).add(Style::Italic);
+	let style_set = StyleSet::new().add_style(Style::Magenta).add_style(Style::Italic);
 	let styled = input.styled(style_set);
 	insta::assert_snapshot!(styled);
 }