From 1713618d4cc0194674f91fd2d24ef2de88f21784 Mon Sep 17 00:00:00 2001
From: Nathan Reiner <nathan@nathanreiner.xyz>
Date: Thu, 18 Jan 2024 18:29:10 +0100
Subject: create small iced demo

---
 src/expression.rs | 68 -------------------------------------------------------
 1 file changed, 68 deletions(-)
 delete mode 100644 src/expression.rs

(limited to 'src/expression.rs')

diff --git a/src/expression.rs b/src/expression.rs
deleted file mode 100644
index c7574a9..0000000
--- a/src/expression.rs
+++ /dev/null
@@ -1,68 +0,0 @@
-use crate::complex::Complex;
-use crate::context::Context;
-use crate::function::FunctionArgument;
-use crate::string::{ContainsAndSkipBrackets, SplitMatchingBracket};
-
-pub struct Expression {
-    repr: String,
-}
-
-impl Expression {
-    pub fn from_string(str: &str) -> Self {
-        Self {
-            repr: str.replace(' ', ""),
-        }
-    }
-
-    pub fn evaluate(&self, context: &Context) -> Result<Complex, String> {
-        let (repr, oprepr) = {
-            if self.repr.starts_with('(') {
-                let (oprepr, r) = self.repr.split_on_matching_bracket();
-                if r.is_empty() {
-                    let repr = oprepr[1..oprepr.len() - 1].to_string();
-                    (repr.clone(), repr)
-                } else {
-                    (self.repr.to_string(), r.to_string())
-                }
-            } else {
-                (self.repr.to_string(), self.repr.to_string())
-            }
-        };
-
-        let curop: Option<_> = {
-            let mut o = None;
-            for op in context.operations() {
-                if oprepr.contains_and_skip_brackets(op.sign().to_string().as_str()) {
-                    o = Some(op);
-                    break;
-                }
-            }
-            o
-        };
-
-        if let Some(op) = curop {
-            let (first, rest) = repr.split_once_and_skipt_brackets(op.sign()).unwrap();
-            let first_expr = Expression::from_string(first);
-            let rest_expr = Expression::from_string(rest);
-            Ok(op.evaluate(first_expr.evaluate(context)?, rest_expr.evaluate(context)?))
-        } else if let Ok(r) = repr.parse::<Complex>() {
-            Ok(r)
-        } else if let Some((func, args)) = repr.split_once('(') {
-            let mut argv = Vec::new();
-
-            for arg in args[..args.len() - 1].split(',') {
-                argv.push(Expression::from_string(arg).evaluate(context)?);
-            }
-
-            if let Some(func) = context.function(func) {
-                Ok(func.eval(FunctionArgument::new(argv), context)?)
-            } else {
-                Err(format!("function '{func}' not found"))
-            }
-        } else if let Some(res) = context.variable(&repr) {
-            Ok(*res)
-        } else {
-            Err(format!("variable '{repr}' not found"))
-        }
-    }
-}
-- 
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