Filled in a lot of code

Assignment 1 (C++)/Assignment 1 (C++).cpp

@@ -0,0 +1,171 @@
+// Assignment 1 (C++).cpp : This file contains the 'main' function. Program execution begins and ends there.
+//
+
+#include <iostream>
+#include <stdio.h>
+#include <vector>
+#include <string>
+
+int main()
+{
+    std::cout << "┌────────────────────────────────────────────────┐\n";
+    std::cout << "│  159.341 2021 Semester 1, Assignment 1 (C++)   │\n";
+    std::cout << "│     Submitted by Brychan Dempsey, 14299890     │\n";
+    std::cout << "└────────────────────────────────────────────────┘\n";
+
+    bool exit = false;
+    while (!exit) {
+        MemoryStream ms(1024);
+        
+
+    }
+}
+bool IsWhiteSpace(char c) {
+    if (c == ' ' || c == '\r' || c == '\n') {
+        return true;
+    }
+    return false;
+}
+
+void skipWhitespace(MemoryStream ms) {
+    char c = ms.PeekChar();
+    while (ms.position < ms.length && IsWhiteSpace(c)) {
+        ms.ReadChar();
+        c = ms.PeekChar();
+    }
+}
+
+std::string FindNextWord(MemoryStream ms, long &position) {
+    std::string nextWord;
+    long start = ms.position;
+    char curr = ms.ReadChar();
+    while (ms.position < ms.length && IsWhiteSpace(curr))
+    {
+        curr = ms.ReadChar();
+    }
+    nextWord.push_back(curr);
+    while (ms.position < ms.length)
+    {
+        curr = ms.ReadChar();
+        if (IsWhiteSpace(curr) || curr == ';')
+        {
+            ms.position--;
+            break;
+        }
+        else
+        {
+            nextWord.push_back(curr);
+        }
+    }
+    position = ms.position;
+    ms.position = start;
+    return nextWord;
+}
+
+struct MemoryStream {
+public:
+    long position = 0;
+    long length = 0;
+private:
+    
+    std::vector<char> chars;
+
+    bool ensureCapacity(long step) {
+        // Size exceeds the bounds of the vector, resize
+        if (position + step >= chars.size()) {
+            chars.resize(position + step);
+        }
+    }
+
+public:
+    MemoryStream(long Reserved) {
+        chars.assign(Reserved, 0);
+    }
+
+    char ReadChar() {
+        if (++position >= length) return -1;
+        return chars[position];
+    }
+
+    char PeekChar() {
+        char result = ReadChar();
+        position--;
+        return result;
+    }
+
+    bool writeChar(char c) {
+        ensureCapacity(1);
+        if (position == length) length++;
+        chars[++position] = c;
+    }
+
+    bool writeChars(const char* c, int count) {
+        ensureCapacity(count);
+        if (position >= length - count) length = position + count;
+        for (int i = 0; i < count; i++)
+        {
+            chars[i + position] = *(c + i);
+        }
+    }
+};
+
+struct Parser {
+    std::vector<std::string> symbolNames;
+    std::vector<std::string> symbolValues;
+
+    void Exit() {
+        std::exit(0);
+    }
+
+    void StartParsing(MemoryStream ms, bool dynamicInput = false) {
+        long startLength = ms.length;
+        long lastLinePos = 0;
+        long initPos = 0;
+        bool cont = false;
+        while (true) {
+            if (dynamicInput) {
+                lastLinePos = ms.position;
+                if (!cont)
+                {
+                    std::cout << "Enter a command: " << std::endl;
+                }
+                std::string s;
+                std::getline(std::cin, s);
+                long pos = ms.position;
+                ms.writeChars(s.c_str(), s.size());
+                ms.position = pos;
+            }
+            if (!cont) {
+                initPos = ms.position;
+            }
+            else {
+                ms.position = initPos;
+            }
+            skipWhitespace(ms);
+            long position = 0;
+            std::string word = FindNextWord(ms, position);
+            try {
+                if (word._Equal("set")) {
+
+                }
+                else if (word._Equal("exit")) {
+
+                }
+                else if (word._Equal("append")) {
+
+                }
+                else if (word._Equal("list")) {
+
+                }
+                else if (word._Equal("print")) {
+
+                }
+            }
+            catch (std::exception e)
+            {
+
+            }
+        }
+    }
+
+};

Assignment 1 (C++)/Assignment 1 (C++).vcxproj

@@ -0,0 +1,147 @@
+<?xml version="1.0" encoding="utf-8"?>
+<Project DefaultTargets="Build" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
+  <ItemGroup Label="ProjectConfigurations">
+    <ProjectConfiguration Include="Debug|Win32">
+      <Configuration>Debug</Configuration>
+      <Platform>Win32</Platform>
+    </ProjectConfiguration>
+    <ProjectConfiguration Include="Release|Win32">
+      <Configuration>Release</Configuration>
+      <Platform>Win32</Platform>
+    </ProjectConfiguration>
+    <ProjectConfiguration Include="Debug|x64">
+      <Configuration>Debug</Configuration>
+      <Platform>x64</Platform>
+    </ProjectConfiguration>
+    <ProjectConfiguration Include="Release|x64">
+      <Configuration>Release</Configuration>
+      <Platform>x64</Platform>
+    </ProjectConfiguration>
+  </ItemGroup>
+  <PropertyGroup Label="Globals">
+    <VCProjectVersion>16.0</VCProjectVersion>
+    <Keyword>Win32Proj</Keyword>
+    <ProjectGuid>{d15c6fed-4af0-4afd-b109-b9755a23c909}</ProjectGuid>
+    <RootNamespace>Assignment1C</RootNamespace>
+    <WindowsTargetPlatformVersion>10.0</WindowsTargetPlatformVersion>
+  </PropertyGroup>
+  <Import Project="$(VCTargetsPath)\Microsoft.Cpp.Default.props" />
+  <PropertyGroup Condition="'$(Configuration)|$(Platform)'=='Debug|Win32'" Label="Configuration">
+    <ConfigurationType>Application</ConfigurationType>
+    <UseDebugLibraries>true</UseDebugLibraries>
+    <PlatformToolset>v142</PlatformToolset>
+    <CharacterSet>Unicode</CharacterSet>
+  </PropertyGroup>
+  <PropertyGroup Condition="'$(Configuration)|$(Platform)'=='Release|Win32'" Label="Configuration">
+    <ConfigurationType>Application</ConfigurationType>
+    <UseDebugLibraries>false</UseDebugLibraries>
+    <PlatformToolset>v142</PlatformToolset>
+    <WholeProgramOptimization>true</WholeProgramOptimization>
+    <CharacterSet>Unicode</CharacterSet>
+  </PropertyGroup>
+  <PropertyGroup Condition="'$(Configuration)|$(Platform)'=='Debug|x64'" Label="Configuration">
+    <ConfigurationType>Application</ConfigurationType>
+    <UseDebugLibraries>true</UseDebugLibraries>
+    <PlatformToolset>v142</PlatformToolset>
+    <CharacterSet>Unicode</CharacterSet>
+  </PropertyGroup>
+  <PropertyGroup Condition="'$(Configuration)|$(Platform)'=='Release|x64'" Label="Configuration">
+    <ConfigurationType>Application</ConfigurationType>
+    <UseDebugLibraries>false</UseDebugLibraries>
+    <PlatformToolset>v142</PlatformToolset>
+    <WholeProgramOptimization>true</WholeProgramOptimization>
+    <CharacterSet>Unicode</CharacterSet>
+  </PropertyGroup>
+  <Import Project="$(VCTargetsPath)\Microsoft.Cpp.props" />
+  <ImportGroup Label="ExtensionSettings">
+  </ImportGroup>
+  <ImportGroup Label="Shared">
+  </ImportGroup>
+  <ImportGroup Label="PropertySheets" Condition="'$(Configuration)|$(Platform)'=='Debug|Win32'">
+    <Import Project="$(UserRootDir)\Microsoft.Cpp.$(Platform).user.props" Condition="exists('$(UserRootDir)\Microsoft.Cpp.$(Platform).user.props')" Label="LocalAppDataPlatform" />
+  </ImportGroup>
+  <ImportGroup Label="PropertySheets" Condition="'$(Configuration)|$(Platform)'=='Release|Win32'">
+    <Import Project="$(UserRootDir)\Microsoft.Cpp.$(Platform).user.props" Condition="exists('$(UserRootDir)\Microsoft.Cpp.$(Platform).user.props')" Label="LocalAppDataPlatform" />
+  </ImportGroup>
+  <ImportGroup Label="PropertySheets" Condition="'$(Configuration)|$(Platform)'=='Debug|x64'">
+    <Import Project="$(UserRootDir)\Microsoft.Cpp.$(Platform).user.props" Condition="exists('$(UserRootDir)\Microsoft.Cpp.$(Platform).user.props')" Label="LocalAppDataPlatform" />
+  </ImportGroup>
+  <ImportGroup Label="PropertySheets" Condition="'$(Configuration)|$(Platform)'=='Release|x64'">
+    <Import Project="$(UserRootDir)\Microsoft.Cpp.$(Platform).user.props" Condition="exists('$(UserRootDir)\Microsoft.Cpp.$(Platform).user.props')" Label="LocalAppDataPlatform" />
+  </ImportGroup>
+  <PropertyGroup Label="UserMacros" />
+  <PropertyGroup Condition="'$(Configuration)|$(Platform)'=='Debug|Win32'">
+    <LinkIncremental>true</LinkIncremental>
+  </PropertyGroup>
+  <PropertyGroup Condition="'$(Configuration)|$(Platform)'=='Release|Win32'">
+    <LinkIncremental>false</LinkIncremental>
+  </PropertyGroup>
+  <PropertyGroup Condition="'$(Configuration)|$(Platform)'=='Debug|x64'">
+    <LinkIncremental>true</LinkIncremental>
+  </PropertyGroup>
+  <PropertyGroup Condition="'$(Configuration)|$(Platform)'=='Release|x64'">
+    <LinkIncremental>false</LinkIncremental>
+  </PropertyGroup>
+  <ItemDefinitionGroup Condition="'$(Configuration)|$(Platform)'=='Debug|Win32'">
+    <ClCompile>
+      <WarningLevel>Level3</WarningLevel>
+      <SDLCheck>true</SDLCheck>
+      <PreprocessorDefinitions>WIN32;_DEBUG;_CONSOLE;%(PreprocessorDefinitions)</PreprocessorDefinitions>
+      <ConformanceMode>true</ConformanceMode>
+    </ClCompile>
+    <Link>
+      <SubSystem>Console</SubSystem>
+      <GenerateDebugInformation>true</GenerateDebugInformation>
+    </Link>
+  </ItemDefinitionGroup>
+  <ItemDefinitionGroup Condition="'$(Configuration)|$(Platform)'=='Release|Win32'">
+    <ClCompile>
+      <WarningLevel>Level3</WarningLevel>
+      <FunctionLevelLinking>true</FunctionLevelLinking>
+      <IntrinsicFunctions>true</IntrinsicFunctions>
+      <SDLCheck>true</SDLCheck>
+      <PreprocessorDefinitions>WIN32;NDEBUG;_CONSOLE;%(PreprocessorDefinitions)</PreprocessorDefinitions>
+      <ConformanceMode>true</ConformanceMode>
+    </ClCompile>
+    <Link>
+      <SubSystem>Console</SubSystem>
+      <EnableCOMDATFolding>true</EnableCOMDATFolding>
+      <OptimizeReferences>true</OptimizeReferences>
+      <GenerateDebugInformation>true</GenerateDebugInformation>
+    </Link>
+  </ItemDefinitionGroup>
+  <ItemDefinitionGroup Condition="'$(Configuration)|$(Platform)'=='Debug|x64'">
+    <ClCompile>
+      <WarningLevel>Level3</WarningLevel>
+      <SDLCheck>true</SDLCheck>
+      <PreprocessorDefinitions>_DEBUG;_CONSOLE;%(PreprocessorDefinitions)</PreprocessorDefinitions>
+      <ConformanceMode>true</ConformanceMode>
+    </ClCompile>
+    <Link>
+      <SubSystem>Console</SubSystem>
+      <GenerateDebugInformation>true</GenerateDebugInformation>
+    </Link>
+  </ItemDefinitionGroup>
+  <ItemDefinitionGroup Condition="'$(Configuration)|$(Platform)'=='Release|x64'">
+    <ClCompile>
+      <WarningLevel>Level3</WarningLevel>
+      <FunctionLevelLinking>true</FunctionLevelLinking>
+      <IntrinsicFunctions>true</IntrinsicFunctions>
+      <SDLCheck>true</SDLCheck>
+      <PreprocessorDefinitions>NDEBUG;_CONSOLE;%(PreprocessorDefinitions)</PreprocessorDefinitions>
+      <ConformanceMode>true</ConformanceMode>
+    </ClCompile>
+    <Link>
+      <SubSystem>Console</SubSystem>
+      <EnableCOMDATFolding>true</EnableCOMDATFolding>
+      <OptimizeReferences>true</OptimizeReferences>
+      <GenerateDebugInformation>true</GenerateDebugInformation>
+    </Link>
+  </ItemDefinitionGroup>
+  <ItemGroup>
+    <ClCompile Include="Assignment 1 (C++).cpp" />
+  </ItemGroup>
+  <Import Project="$(VCTargetsPath)\Microsoft.Cpp.targets" />
+  <ImportGroup Label="ExtensionTargets">
+  </ImportGroup>
+</Project>

Assignment 1 (C++)/Assignment 1 (C++).vcxproj.filters

@@ -0,0 +1,22 @@
+<?xml version="1.0" encoding="utf-8"?>
+<Project ToolsVersion="4.0" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
+  <ItemGroup>
+    <Filter Include="Source Files">
+      <UniqueIdentifier>{4FC737F1-C7A5-4376-A066-2A32D752A2FF}</UniqueIdentifier>
+      <Extensions>cpp;c;cc;cxx;c++;cppm;ixx;def;odl;idl;hpj;bat;asm;asmx</Extensions>
+    </Filter>
+    <Filter Include="Header Files">
+      <UniqueIdentifier>{93995380-89BD-4b04-88EB-625FBE52EBFB}</UniqueIdentifier>
+      <Extensions>h;hh;hpp;hxx;h++;hm;inl;inc;ipp;xsd</Extensions>
+    </Filter>
+    <Filter Include="Resource Files">
+      <UniqueIdentifier>{67DA6AB6-F800-4c08-8B7A-83BB121AAD01}</UniqueIdentifier>
+      <Extensions>rc;ico;cur;bmp;dlg;rc2;rct;bin;rgs;gif;jpg;jpeg;jpe;resx;tiff;tif;png;wav;mfcribbon-ms</Extensions>
+    </Filter>
+  </ItemGroup>
+  <ItemGroup>
+    <ClCompile Include="Assignment 1 (C++).cpp">
+      <Filter>Source Files</Filter>
+    </ClCompile>
+  </ItemGroup>
+</Project>

Assignment 1.sln

@@ -3,18 +3,42 @@ Microsoft Visual Studio Solution File, Format Version 12.00
 # Visual Studio Version 16
 VisualStudioVersion = 16.0.31025.194
 MinimumVisualStudioVersion = 10.0.40219.1
-Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "Assignment 1", "Assignment 1\Assignment 1.csproj", "{90821384-3BA4-4373-A08C-DA6BC25D688A}"
+Project("{9A19103F-16F7-4668-BE54-9A1E7A4F7556}") = "Assignment 1", "Assignment 1\Assignment 1.csproj", "{90821384-3BA4-4373-A08C-DA6BC25D688A}"
+EndProject
+Project("{8BC9CEB8-8B4A-11D0-8D11-00A0C91BC942}") = "Assignment 1 (C++)", "Assignment 1 (C++)\Assignment 1 (C++).vcxproj", "{D15C6FED-4AF0-4AFD-B109-B9755A23C909}"
 EndProject
 Global
 	GlobalSection(SolutionConfigurationPlatforms) = preSolution
 		Debug|Any CPU = Debug|Any CPU
+		Debug|x64 = Debug|x64
+		Debug|x86 = Debug|x86
 		Release|Any CPU = Release|Any CPU
+		Release|x64 = Release|x64
+		Release|x86 = Release|x86
 	EndGlobalSection
 	GlobalSection(ProjectConfigurationPlatforms) = postSolution
 		{90821384-3BA4-4373-A08C-DA6BC25D688A}.Debug|Any CPU.ActiveCfg = Debug|Any CPU
 		{90821384-3BA4-4373-A08C-DA6BC25D688A}.Debug|Any CPU.Build.0 = Debug|Any CPU
+		{90821384-3BA4-4373-A08C-DA6BC25D688A}.Debug|x64.ActiveCfg = Debug|Any CPU
+		{90821384-3BA4-4373-A08C-DA6BC25D688A}.Debug|x64.Build.0 = Debug|Any CPU
+		{90821384-3BA4-4373-A08C-DA6BC25D688A}.Debug|x86.ActiveCfg = Debug|Any CPU
+		{90821384-3BA4-4373-A08C-DA6BC25D688A}.Debug|x86.Build.0 = Debug|Any CPU
 		{90821384-3BA4-4373-A08C-DA6BC25D688A}.Release|Any CPU.ActiveCfg = Release|Any CPU
 		{90821384-3BA4-4373-A08C-DA6BC25D688A}.Release|Any CPU.Build.0 = Release|Any CPU
+		{90821384-3BA4-4373-A08C-DA6BC25D688A}.Release|x64.ActiveCfg = Release|Any CPU
+		{90821384-3BA4-4373-A08C-DA6BC25D688A}.Release|x64.Build.0 = Release|Any CPU
+		{90821384-3BA4-4373-A08C-DA6BC25D688A}.Release|x86.ActiveCfg = Release|Any CPU
+		{90821384-3BA4-4373-A08C-DA6BC25D688A}.Release|x86.Build.0 = Release|Any CPU
+		{D15C6FED-4AF0-4AFD-B109-B9755A23C909}.Debug|Any CPU.ActiveCfg = Debug|Win32
+		{D15C6FED-4AF0-4AFD-B109-B9755A23C909}.Debug|x64.ActiveCfg = Debug|x64
+		{D15C6FED-4AF0-4AFD-B109-B9755A23C909}.Debug|x64.Build.0 = Debug|x64
+		{D15C6FED-4AF0-4AFD-B109-B9755A23C909}.Debug|x86.ActiveCfg = Debug|Win32
+		{D15C6FED-4AF0-4AFD-B109-B9755A23C909}.Debug|x86.Build.0 = Debug|Win32
+		{D15C6FED-4AF0-4AFD-B109-B9755A23C909}.Release|Any CPU.ActiveCfg = Release|Win32
+		{D15C6FED-4AF0-4AFD-B109-B9755A23C909}.Release|x64.ActiveCfg = Release|x64
+		{D15C6FED-4AF0-4AFD-B109-B9755A23C909}.Release|x64.Build.0 = Release|x64
+		{D15C6FED-4AF0-4AFD-B109-B9755A23C909}.Release|x86.ActiveCfg = Release|Win32
+		{D15C6FED-4AF0-4AFD-B109-B9755A23C909}.Release|x86.Build.0 = Release|Win32
 	EndGlobalSection
 	GlobalSection(SolutionProperties) = preSolution
 		HideSolutionNode = FALSE

Assignment 1/Program.cs

@@ -37,10 +37,10 @@ namespace Assignment_1
 
         static void Main(string[] args)
         {
-            Console.WriteLine("┌──────────────────────────────────────────┐");
-            Console.WriteLine("│  159.341 2021 Semester 1, Assignment 1   │");
+            Console.WriteLine("┌──────────────────────────────────────────────┐");
+            Console.WriteLine("│  159.341 2021 Semester 1, Assignment 1 (C#)  │");
             Console.WriteLine("│    Submitted by Brychan Dempsey, 14299890    │");
-            Console.WriteLine("└──────────────────────────────────────────┘");
+            Console.WriteLine("└──────────────────────────────────────────────┘");
             // Parse the source from the memory stream
             bool exit = false;
             while (!exit)
@@ -185,6 +185,8 @@ namespace Assignment_1
                         {
                             // By turning the result of the command into an action,
                             // we can defer processing the final result until the end of this control flow
+                            // This simplifies parsing the eol, and prevents the result being processed too
+                            // optimistically.
                             Action result = () => { };
                             source.Position = position;
                             switch ((Statements)statementType)
@@ -428,7 +430,7 @@ namespace Assignment_1
             }
             Action Exit(Stream source, long initialStreamLength, bool isDynamicInput=false)
             {
-                Action exitAction = () =>
+                void exitAction()
                 {
                     if (source.Length != initialStreamLength && isDynamicInput)
                     {
@@ -457,7 +459,7 @@ namespace Assignment_1
                             }
                         }
                     }
-                };
+                }
                 return exitAction;
             }
             Action Print(Stream source, int mode = 0)
@@ -908,12 +910,6 @@ namespace Assignment_1
         #endregion
         public class ParserException : Exception
         {
-            /// <summary>
-            /// Importance is used to signify how the parser should respond to the error.
-            /// A code of 3 or greater is a critical error; the application will throw the error further up the call and exit.
-            /// 0 implies the line may be retried.
-            /// 1 should imply the current block is not valid and should be retried.
-            /// </summary>
             public int Importance = 0;
             public long LinePosition = -1;
             public ParserException(string message, int importance, long linePos) : base(message)