Fixed 0 / 0 problem

Euler.podspec

@@ -1,6 +1,6 @@
 Pod::Spec.new do |s|
   s.name         = "Euler"
-  s.version      = "0.2.5"
+  s.version      = "0.2.6"
   s.summary      = "The open source computational framework for the Swift language (early stage)"
   s.description  = <<-DESC
     The open source computational framework for the Swift language (early stage)

Euler.xcodeproj/project.pbxproj

@@ -818,7 +818,7 @@
 				HEADER_SEARCH_PATHS = "$(inherited)";
 				INFOPLIST_FILE = Euler.xcodeproj/Euler_Info.plist;
 				LD_RUNPATH_SEARCH_PATHS = "$(inherited) $(TOOLCHAIN_DIR)/usr/lib/swift/macosx";
-				MARKETING_VERSION = 0.2.5;
+				MARKETING_VERSION = 0.2.6;
 				OTHER_CFLAGS = "$(inherited)";
 				OTHER_LDFLAGS = "$(inherited)";
 				OTHER_SWIFT_FLAGS = "$(inherited)";
@@ -843,7 +843,7 @@
 				HEADER_SEARCH_PATHS = "$(inherited)";
 				INFOPLIST_FILE = Euler.xcodeproj/Euler_Info.plist;
 				LD_RUNPATH_SEARCH_PATHS = "$(inherited) $(TOOLCHAIN_DIR)/usr/lib/swift/macosx";
-				MARKETING_VERSION = 0.2.5;
+				MARKETING_VERSION = 0.2.6;
 				OTHER_CFLAGS = "$(inherited)";
 				OTHER_LDFLAGS = "$(inherited)";
 				OTHER_SWIFT_FLAGS = "$(inherited)";

README.md

@@ -15,15 +15,15 @@ I’m already working with Apple to fix this, but if you have the solution, plea
 [CocoaPods](https://cocoapods.org) is a dependency manager for Cocoa projects. For usage and installation instructions, visit their website. To integrate Euler into your Xcode project using CocoaPods, specify it in your `Podfile`:
 
 ```ruby
-pod 'Euler', '~> 0.2.5'
+pod 'Euler', '~> 0.2.6'
 ```
 
 ### Carthage
 
 [Carthage](https://github.com/Carthage/Carthage) is a decentralized dependency manager that builds your dependencies and provides you with binary frameworks. To integrate Euler into your Xcode project using Carthage, specify it in your `Cartfile`:
 
 ```ogdl
-github "arguiot/Euler" ~> 0.2.5
+github "arguiot/Euler" ~> 0.2.6
 ```
 
 ### Swift Package Manager
@@ -34,7 +34,7 @@ Once you have your Swift package set up, adding Euler as a dependency is as easy
 
 ```swift
 dependencies: [
-    .package(url: "https://github.com/arguiot/Euler.git", .upToNextMajor(from: "0.2.5"))
+    .package(url: "https://github.com/arguiot/Euler.git", .upToNextMajor(from: "0.2.6"))
 ]
 ```
 

Sources/Euler/Algebra/Parser/Node/OperatorNode.swift

@@ -82,6 +82,7 @@ public class OperatorNode: NSObject, Node {
             case "-":
                 return NullNode()
             case "/":
+                guard 0 != (try? c2.evaluate([:], Tables.functions).number) else { return self }
                 return ConstantNode(1)
             case "*":
                 return OperatorNode("^", children: [c1, ConstantNode(2)])

Tests/EulerTests/NodeTests.swift

@@ -80,6 +80,7 @@ class NodeTests: XCTestCase {
             XCTAssertEqual(comp.toString(), "x + y * 2 + 3")
 
             XCTAssertEqual(try Parser("(4*2)").parse().compile().toString(), "8")
+            XCTAssertEqual(try Parser("0 / 0").parse().compile().toString(), "0 / 0")
             XCTAssertEqual(try Parser("x+x - y*y").parse().compile().toString(), "2 * x - y ^ 2")
         } catch {
             print(error.localizedDescription)