CONTRIBUTING.MD

@@ -29,4 +29,3 @@ What to do
  - `cargo publish`
  - Update web demo & pull server (`make docker`)
  - Update aur package
- - Update `default.nix` (test with `make nix`)

Cargo.lock

@@ -28,7 +28,7 @@ checksum = "baf1de4339761588bc0619e3cbc0120ee582ebb74b53b4efbf79117bd2da40fd"
 
 [[package]]
 name = "daisycalc"
-version = "1.1.7"
+version = "1.1.5"
 dependencies = [
  "cfg-if",
  "num",

Cargo.toml

@@ -1,6 +1,6 @@
 [package]
 name = "daisycalc"
-version = "1.1.7"
+version = "1.1.5"
 edition = "2021"
 build = "buildscript/main.rs"
 license = "GPL-3.0-only"

Makefile

@@ -1,9 +1,6 @@
 release:
 	cargo build --release
 
-nix:
-	nix-build -E 'let pkgs = import <nixpkgs> { }; in pkgs.callPackage ./default.nix {}'
-
 test:
 	cargo test
 

README.md

@@ -7,25 +7,13 @@ Many features are missing, this is still under development.
 **Web demo: [here](https://daisy.betalupi.com) (won't work on mobile)**
 
 # 📦 Installation
- - **From source:** `cargo build --release`, binary will be at `./target/release/daisy`
  - **Cargo:** `cargo install daisycalc`
  - **Arch:** `yay -S daisy`
  - **Debian:** coming soon
- - **Nix:** Use `default.nix`. Daisy isn't in nixpkgs yet, you'll need to add something like the following to `configuration.nix`:
 
-```nix
-let
-  daisy = builtins.fetchGit {
-    url = "https://github.com/rm-dr/daisy.git";
-    ref = "master";
-  } + /default.nix;
-in
-{
-  environment.systemPackages = with pkgs; [
-    (callPackage daisy { })
-  ];
-}
-```
+From source: `cargo build --release` \
+Binary will be in `target/release/daisy`
+
 
 # 📹 Screenshot
 
@@ -34,7 +22,7 @@ in
 # 🛠️ Features
  - Open-source
  - Extremely high precision
-	 - Uses a rational datatype when possible, and a high-precision float when not.
+   - Uses a rational datatype when possible, and a high-precision float when not.
  - Pretty printing in prompt (with special substitutions)
  - Supports many physical units, with metric and binary prefixes
  - Supports exponential notation

TODO.md

@@ -20,8 +20,6 @@
  - Sums and products with functional arguments
  - Add functions: gcd, inverse mod, dice
  - Tuple operations
- - Number theory: select a group, inverses, etc
- - Negative mod
 
 ## Prompt
  - Fix terminal color detection

default.nix

@@ -1,17 +1,17 @@
 { lib, fetchgit, rustPlatform }:
 rustPlatform.buildRustPackage rec {
 	pname = "daisy";
-	version = "1.1.7";
+	version = "1.1.4";
 	cargoLock.lockFile = src + /Cargo.lock;
 
-	src = builtins.fetchGit {
+	src = fetchgit {
 		url = "https://github.com/rm-dr/daisy.git";
-		ref = "refs/tags/v${version}";
-		#rev = ""; Ideally, we'd have a hash here, but that would make git history messy.
+		rev = "v${version}";
+		sha256 = "sha256-aENuKtE1+tBRN0HZzRr8Gk+dVEYTiP6FNRz817Sk88o=";
 	};
 
 	meta = with lib; {
-		description = "A general-purpose scientific calculator";
+		description = "A pretty command-line scientific calculator";
 		homepage = "https://github.com/rm-dr/daisy";
 		#license = licenses.GPL;
 		maintainers = [ maintainers.tailhook ];

src/command/mod.rs

@@ -247,7 +247,7 @@ pub fn do_command(
 			if args.len() != 2 {
 				return FormattedText::new(
 					format!(
-						"[c]{first}[n] [e]takes exactly one argument.[n]\n\n",
+						"[c]{first}[n] [t]takes exactly one argument.[n]\n\n",
 					)
 				);
 			}
@@ -261,7 +261,7 @@ pub fn do_command(
 				Err(()) => {
 					FormattedText::new(
 						format!(
-							"[c]{v}[n] [e]isn't a variable.[n]\n\n",
+							"[c]{v}[n] [t]isn't a variable.[n]\n\n",
 						)
 					)
 				}

src/context.rs

@@ -90,7 +90,6 @@ impl Context {
 
 	pub fn delete(&mut self, s: &String) -> Result<(), ()> {
 		if !(self.is_varible(s) || self.is_function(s)) { return Err(()) };
-		if s == "ans" { return Err(()) };
 		if self.is_varible(s) { self.variables.remove(s); }
 		if self.is_function(s) { self.functions.remove(s); }
 		return Ok(());

src/evaluate/evaluate.rs

@@ -63,7 +63,7 @@ pub fn evaluate(
 
 					context.get_variable(&s)
 				},
-				Expression::Operator(_, Operator::Function(_), _) => { eval_function(context, g)? },
+				Expression::Operator(_, Operator::Function(_), _) => { eval_function(g)? },
 				Expression::Operator(_, _, _) => { eval_operator(context, g)? },
 			};
 

src/evaluate/function.rs

@@ -3,12 +3,11 @@ use crate::parser::Function;
 use crate::parser::Operator;
 use crate::parser::LineLocation;
 use crate::quantity::FreeUnit;
-use crate::quantity::Unit;
 use crate::quantity::WholeUnit;
 use crate::quantity::Quantity;
 use crate::quantity::Scalar;
 use crate::errors::DaisyError;
-use crate::context::Context;
+
 
 // If unitless, do nothing
 // If compatible with radians, convert to radians and return unitless
@@ -27,7 +26,7 @@ fn to_radians(q: Quantity) -> Result<Quantity, ()> {
 
 
 
-pub fn eval_function(context: &mut Context, g: &Expression) -> Result<Option<Expression>, (LineLocation, DaisyError)> {
+pub fn eval_function(g: &Expression) -> Result<Option<Expression>, (LineLocation, DaisyError)> {
 
 	let Expression::Operator(loc, Operator::Function(f), args) = g else {unreachable!()};
 
@@ -155,51 +154,17 @@ pub fn eval_function(context: &mut Context, g: &Expression) -> Result<Option<Exp
 		Function::ToCelsius => {
 			let mut k = Quantity::new_rational(1f64).unwrap();
 			k.insert_unit(FreeUnit::from_whole(WholeUnit::Kelvin), Scalar::new_rational(1f64).unwrap());
-
-			let q_s: String;
-			if q.unitless() {
-				q_s = String::from("scalar");
-			} else {
-				q_s = q.convert_to_base().unit().display(context);
-			}
-
-			let Some(q) = q.convert_to(k) else {
-				return Err((
-					*loc + *l,
-					DaisyError::IncompatibleUnits(
-						q_s,
-						Unit::from_free(FreeUnit::from_whole(WholeUnit::Kelvin)).display(context)
-					)
-				))
-			};
+			let Some(q) = q.convert_to(k) else { return Err((*loc + *l, DaisyError::IncompatibleUnit)) };
 
 			let mut r = q.without_unit();
 			r += Quantity::new_rational(-273.15f64).unwrap();
 
 			return Ok(Some(Expression::Quantity(*loc + *l, r)));
 		},
-
-
 		Function::ToFahrenheit => {
 			let mut k = Quantity::new_rational(1f64).unwrap();
 			k.insert_unit(FreeUnit::from_whole(WholeUnit::Kelvin), Scalar::new_rational(1f64).unwrap());
-
-			let q_s: String;
-			if q.unitless() {
-				q_s = String::from("scalar");
-			} else {
-				q_s = q.convert_to_base().unit().display(context);
-			}
-
-			let Some(q) = q.convert_to(k) else {
-				return Err((
-					*loc + *l,
-					DaisyError::IncompatibleUnits(
-						q_s,
-						Unit::from_free(FreeUnit::from_whole(WholeUnit::Kelvin)).display(context)
-					)
-				))
-			};
+			let Some(q) = q.convert_to(k) else { return Err((*loc + *l, DaisyError::IncompatibleUnit)) };
 
 			let mut r = q.without_unit();
 			r *= Quantity::new_rational_from_frac(9i64, 5i64).unwrap();
@@ -208,18 +173,8 @@ pub fn eval_function(context: &mut Context, g: &Expression) -> Result<Option<Exp
 
 			return Ok(Some(Expression::Quantity(*loc + *l, r)));
 		},
-
-
 		Function::FromCelsius => {
-			if !q.unitless() {
-				return Err((
-					*loc + *l,
-					DaisyError::IncompatibleUnits(
-						q.convert_to_base().unit().display(context),
-						"scalar".to_string()
-					)
-				));
-			}
+			if !q.unitless() { return Err((*loc + *l, DaisyError::IncompatibleUnit));}
 
 			let mut r = Quantity::new_rational(273.15f64).unwrap();
 			r += q.clone();
@@ -227,18 +182,8 @@ pub fn eval_function(context: &mut Context, g: &Expression) -> Result<Option<Exp
 
 			return Ok(Some(Expression::Quantity(*loc + *l, r)));
 		},
-
-
 		Function::FromFahrenheit => {
-			if !q.unitless() {
-				return Err((
-					*loc + *l,
-					DaisyError::IncompatibleUnits(
-						q.convert_to_base().unit().display(context),
-						"scalar".to_string()
-					)
-				));
-			}
+			if !q.unitless() { return Err((*loc + *l, DaisyError::IncompatibleUnit));}
 
 			let mut r = q.clone();
 			r += Quantity::new_rational(459.67).unwrap();

src/evaluate/operator.rs

@@ -124,8 +124,6 @@ pub fn eval_operator(context: &mut Context, g: &Expression) -> Result<Option<Exp
 			if let Expression::Quantity(la, a) = a {
 				if let Expression::Quantity(lb, b) = b {
 					if !a.unit.compatible_with(&b.unit) {
-						let a = a.convert_to_base().unit;
-						let b = b.convert_to_base().unit;
 
 						let a_s: String;
 						let b_s: String;