Implemented a new builtin and improved error handling

src/shopt.rs

@@ -0,0 +1,126 @@
+use std::str::FromStr;
+
+use rustyline::EditMode;
+
+use crate::{libsh::error::{ShErr, ShErrKind, ShResult}, prelude::*, state::LogTab};
+
+#[derive(Clone, Debug)]
+pub enum BellStyle {
+	Audible,
+	Visible,
+	Disable,
+}
+
+
+impl FromStr for BellStyle {
+	type Err = ShErr;
+	fn from_str(s: &str) -> Result<Self, Self::Err> {
+		match s.to_ascii_uppercase().as_str() {
+			"audible" => Ok(Self::Audible),
+			"visible" => Ok(Self::Visible),
+			"disable" => Ok(Self::Disable),
+			_ => return Err(
+				ShErr::simple(
+					ShErrKind::SyntaxErr,
+					format!("Invalid bell style '{s}'")
+				)
+			)
+		}
+	}
+}
+
+#[derive(Clone, Debug)]
+pub enum FernEditMode {
+	Vi,
+	Emacs
+}
+
+impl Into<EditMode> for FernEditMode {
+	fn into(self) -> EditMode {
+		match self {
+			Self::Vi => EditMode::Vi,
+			Self::Emacs => EditMode::Emacs
+		}
+	}
+}
+
+impl FromStr for FernEditMode {
+	type Err = ShErr;
+	fn from_str(s: &str) -> Result<Self, Self::Err> {
+		match s.to_ascii_lowercase().as_str() {
+			"vi" => Ok(Self::Vi),
+			"emacs" => Ok(Self::Emacs),
+			_ => return Err(
+				ShErr::simple(
+					ShErrKind::SyntaxErr,
+					format!("Invalid edit mode '{s}'")
+				)
+			)
+		}
+	}
+}
+
+#[derive(Clone, Debug)]
+pub struct ShOpts {
+	core: ShOptCore,
+	prompt: ShOptPrompt
+}
+
+impl Default for ShOpts {
+	fn default() -> Self {
+		let core = ShOptCore {
+			dotglob: false,
+			autocd: false,
+			hist_ignore_dupes: true,
+			max_hist: 1000,
+			int_comments: true,
+			auto_hist: true,
+			bell_style: BellStyle::Audible,
+			max_recurse_depth: 1000,
+		};
+
+		let prompt = ShOptPrompt {
+			trunc_prompt_path: 3,
+			edit_mode: FernEditMode::Vi,
+			comp_limit: 100,
+			prompt_highlight: true,
+			tab_stop: 4,
+			custom: LogTab::new()
+		};
+
+		Self { core, prompt }
+	}
+}
+
+impl ShOpts {
+	pub fn get(query: &str) -> ShResult<String> {
+		todo!();
+		// TODO: handle escapes?
+		let mut query = query.split('.');
+		//let Some(key) = query.next() else {
+
+		//};
+	}
+}
+
+#[derive(Clone, Debug)]
+pub struct ShOptCore {
+	pub dotglob: bool,
+	pub autocd: bool,
+	pub hist_ignore_dupes: bool,
+	pub max_hist: usize,
+	pub int_comments: bool,
+	pub auto_hist: bool,
+	pub bell_style: BellStyle,
+	pub max_recurse_depth: usize,
+}
+
+#[derive(Clone, Debug)]
+pub struct ShOptPrompt {
+	pub trunc_prompt_path: usize,
+	pub edit_mode: FernEditMode,
+	pub comp_limit: usize,
+	pub prompt_highlight: bool,
+	pub tab_stop: usize,
+	pub custom: LogTab // Contains functions for prompt modules
+}