Cargo.toml

@@ -14,7 +14,6 @@ path = "src/main.rs"
 
 [dependencies]
 evalexpr = "11.0.0"
-pico-args = "0.5.0"
 termion = "1.5.6"
 
 [profile.release]

src/context/mod.rs

@@ -1,4 +0,0 @@
-
-pub mod global;
-pub mod helper;
-

src/flag.rs

@@ -1,7 +0,0 @@
-
-pub const EMPTY_CONTEXT:	[&str;2]	=	[ "-E", "--empty"];
-pub const HELP:				[&str;2]	=	[ "-h", "--help" ];
-pub const QUIET:			[&str;2]	=	[ "-q", "--quiet" ];
-pub const SET:				&str		=	"--set";
-pub const VERSION:			[&str;2]	=	[ "-V", "--version" ];
-

src/main.rs

@@ -9,50 +9,64 @@ use std::{
 };
 
 use evalexpr::{
+	context_map,
 	eval_with_context_mut,
 	ContextWithMutableVariables,
 	HashMapContext,
 	Value
 };
-use pico_args::Arguments;
 use termion::{
 	color,
 	style
 };
 
-mod context;
-mod eval;
-mod flag;
+mod global;
+mod helper;
 mod util;
 
 pub const VERSION: &str = env!("CARGO_PKG_VERSION");
 
 fn main() {
-	let mut args = Arguments::from_env();
+	//	build eval context
+	let mut context = context_map! {
+		//	globals
+		"c"		=>	global::LIGHT_SPEED,
+		"e"		=>	global::EULER,
+		"phi"	=>	global::GOLDEN_RATIO,
+		"pi"	=>	global::PI,
+		"√2"	=>	global::ROOT_TWO,
 
-	//	handle breaking flags
-	if args.contains(flag::HELP) {
-		help_text();
-		return;
-	}
-	if args.contains(flag::VERSION) {
-		version_text();
-		return;
-	}
+		//	math functions
+		"fix"	=>	Function::new(|arg| helper::fix(arg)),
+		"log"	=>	Function::new(|arg| helper::logarithm(arg)),
+		"sqrt"	=>	Function::new(|arg| helper::square_root(arg)),
 
-	let mut context = util::build_context(&mut args);
+		//	data science functions
+		"avg"	=>	Function::new(|arg| helper::average(arg)),
+
+		//	radix functions
+		"bin"	=>	Function::new(|arg| helper::binary(arg)),
+		"hex"	=>	Function::new(|arg| helper::hexadecimal(arg)),
+		"oct"	=>	Function::new(|arg| helper::octal(arg)),
+
+		//	character aliases
+		"ϕ"		=>	global::GOLDEN_RATIO,
+		"π"		=>	global::PI,
+		"√"		=>	Function::new(|arg| helper::square_root(arg))
+	}.unwrap();
 
 	//	collect args and evaluate if present
-	let expressions = args.finish();
+	let expressions: Vec<String> = env::args().skip(1).collect();
 	if expressions.len() > 0 {
 		for expression in expressions {
-			let expression: String = expression.to_string_lossy().into();
-			do_eval(expression, &mut context)
+			match expression.as_str() {
+				"help"	=>	help_text(),
+				_		=>	do_eval(expression, &mut context)
+			}
 		}
 	} else {
 		//	enter interactive mode if no args are given
-		version_text();
-		println!("{}Interactive Mode{}", style::Faint, style::Reset);
+		println!("{}quickmaths v{}{}\n{}Interactive Mode{}", style::Bold, VERSION, style::Reset, style::Faint, style::Reset);
 		loop {
 			print!("> ");
 			stdout().flush().unwrap();
@@ -117,17 +131,16 @@ fn reset() {
 	stdout().flush().unwrap();
 }
 
-fn version_text() {
-	println!("qm v{VERSION}");
-}
-
 fn help_text() {
-	version_text();
 	println!(
-"Valerie Wolfe <sleeplessval@gmail.com>
+		"{bold}quickmaths v{version}{reset}
+Valerie Wolfe <sleeplessval@gmail.com>
 A mathematical expression evaluator written in Rust.
 
 usage:
-   qm [EXPRESSION]..."
+   qm [EXPRESSION]...",
+		bold = style::Bold,
+		reset = style::Reset,
+		version = crate::VERSION
 	);
 }

src/util.rs

@@ -1,12 +1,7 @@
-
 use evalexpr::{
-	context_map, ContextWithMutableVariables, EvalexprError, HashMapContext, Value
-};
-use pico_args::Arguments;
+	Value,
 	
-use crate::{
-	context::{ global, helper },
-	flag
+	EvalexprError
 };
 
 pub(crate) fn parse_radix(prefix: &str, base: u32, arg: &Value) -> Result<Value, EvalexprError> {
@@ -21,53 +16,3 @@ pub(crate) fn parse_radix(prefix: &str, base: u32, arg: &Value) -> Result<Value,
 
 	return Ok(result.unwrap().into());
 }
-
-pub(crate) fn build_context(args: &mut Arguments) -> HashMapContext {
-	let mut output =
-		if !args.contains(flag::EMPTY_CONTEXT) {
-			context_map! {
-				//	globals
-				"c"		=>	global::LIGHT_SPEED,
-				"e"		=>	global::EULER,
-				"phi"	=>	global::GOLDEN_RATIO,
-				"pi"	=>	global::PI,
-				"√2"	=>	global::ROOT_TWO,
-
-				//	math functions
-				"fix"	=>	Function::new(|arg| helper::fix(arg)),
-				"log"	=>	Function::new(|arg| helper::logarithm(arg)),
-				"sqrt"	=>	Function::new(|arg| helper::square_root(arg)),
-
-				//	data science functions
-				"avg"	=>	Function::new(|arg| helper::average(arg)),
-
-				//	radix functions
-				"bin"	=>	Function::new(|arg| helper::binary(arg)),
-				"hex"	=>	Function::new(|arg| helper::hexadecimal(arg)),
-				"oct"	=>	Function::new(|arg| helper::octal(arg)),
-
-				//	character aliases
-				"ϕ"		=>	global::GOLDEN_RATIO,
-				"π"		=>	global::PI,
-				"√"		=>	Function::new(|arg| helper::square_root(arg))
-			}.unwrap()
-		} else { HashMapContext::new() };
-
-	while let Ok(value) = args.value_from_str::<&str, String>(flag::SET) {
-		let split: Vec<&str> = value.split('=').collect();
-		if split.len() == 2 {
-			let key = split[0].to_owned();
-
-			let value_str = split[1];
-			let value =
-				if let Ok(integer) = value_str.parse::<i64>() { Value::Int(integer) }
-				else if let Ok(float) = value_str.parse::<f64>() { Value::Float(float) }
-				else { Value::from(value_str) };
-
-			output.set_value(key, value).ok(); }
-		else { std::process::exit(1); }
-	}
-
-	output
-}
-