Homework 1 (#26)

* Finished homework 1

* Removed the binaries.

* Adding gitignore and solution

* Removed unnecessary code.

* Removed the .sln for the appveyor build.

9 files changed, 883 insertions, 0 deletions

diff --git a/homework/45278/js2html/.gitignore b/homework/45278/js2html/.gitignore
new file mode 100644
index 0000000..f00a0eb
--- /dev/null
+++ b/homework/45278/js2html/.gitignore
@@ -0,0 +1,334 @@
+## Ignore Visual Studio temporary files, build results, and
+## files generated by popular Visual Studio add-ons.
+##
+## Get latest from https://github.com/github/gitignore/blob/master/VisualStudio.gitignore
+
+# User-specific files
+*.rsuser
+*.suo
+*.user
+*.userosscache
+*.sln.docstates
+
+# User-specific files (MonoDevelop/Xamarin Studio)
+*.userprefs
+
+# Build results
+[Dd]ebug/
+[Dd]ebugPublic/
+[Rr]elease/
+[Rr]eleases/
+x64/
+x86/
+bld/
+[Bb]in/
+[Oo]bj/
+[Ll]og/
+
+# Visual Studio 2015/2017 cache/options directory
+.vs/
+# Uncomment if you have tasks that create the project's static files in wwwroot
+#wwwroot/
+
+# Visual Studio 2017 auto generated files
+Generated\ Files/
+
+# MSTest test Results
+[Tt]est[Rr]esult*/
+[Bb]uild[Ll]og.*
+
+# NUNIT
+*.VisualState.xml
+TestResult.xml
+
+# Build Results of an ATL Project
+[Dd]ebugPS/
+[Rr]eleasePS/
+dlldata.c
+
+# Benchmark Results
+BenchmarkDotNet.Artifacts/
+
+# .NET Core
+project.lock.json
+project.fragment.lock.json
+artifacts/
+
+# StyleCop
+StyleCopReport.xml
+
+# Files built by Visual Studio
+*_i.c
+*_p.c
+*_h.h
+*.ilk
+*.meta
+*.obj
+*.iobj
+*.pch
+*.pdb
+*.ipdb
+*.pgc
+*.pgd
+*.rsp
+*.sbr
+*.tlb
+*.tli
+*.tlh
+*.tmp
+*.tmp_proj
+*_wpftmp.csproj
+*.log
+*.vspscc
+*.vssscc
+.builds
+*.pidb
+*.svclog
+*.scc
+
+# Chutzpah Test files
+_Chutzpah*
+
+# Visual C++ cache files
+ipch/
+*.aps
+*.ncb
+*.opendb
+*.opensdf
+*.sdf
+*.cachefile
+*.VC.db
+*.VC.VC.opendb
+
+# Visual Studio profiler
+*.psess
+*.vsp
+*.vspx
+*.sap
+
+# Visual Studio Trace Files
+*.e2e
+
+# TFS 2012 Local Workspace
+$tf/
+
+# Guidance Automation Toolkit
+*.gpState
+
+# ReSharper is a .NET coding add-in
+_ReSharper*/
+*.[Rr]e[Ss]harper
+*.DotSettings.user
+
+# JustCode is a .NET coding add-in
+.JustCode
+
+# TeamCity is a build add-in
+_TeamCity*
+
+# DotCover is a Code Coverage Tool
+*.dotCover
+
+# AxoCover is a Code Coverage Tool
+.axoCover/*
+!.axoCover/settings.json
+
+# Visual Studio code coverage results
+*.coverage
+*.coveragexml
+
+# NCrunch
+_NCrunch_*
+.*crunch*.local.xml
+nCrunchTemp_*
+
+# MightyMoose
+*.mm.*
+AutoTest.Net/
+
+# Web workbench (sass)
+.sass-cache/
+
+# Installshield output folder
+[Ee]xpress/
+
+# DocProject is a documentation generator add-in
+DocProject/buildhelp/
+DocProject/Help/*.HxT
+DocProject/Help/*.HxC
+DocProject/Help/*.hhc
+DocProject/Help/*.hhk
+DocProject/Help/*.hhp
+DocProject/Help/Html2
+DocProject/Help/html
+
+# Click-Once directory
+publish/
+
+# Publish Web Output
+*.[Pp]ublish.xml
+*.azurePubxml
+# Note: Comment the next line if you want to checkin your web deploy settings,
+# but database connection strings (with potential passwords) will be unencrypted
+*.pubxml
+*.publishproj
+
+# Microsoft Azure Web App publish settings. Comment the next line if you want to
+# checkin your Azure Web App publish settings, but sensitive information contained
+# in these scripts will be unencrypted
+PublishScripts/
+
+# NuGet Packages
+*.nupkg
+# The packages folder can be ignored because of Package Restore
+**/[Pp]ackages/*
+# except build/, which is used as an MSBuild target.
+!**/[Pp]ackages/build/
+# Uncomment if necessary however generally it will be regenerated when needed
+#!**/[Pp]ackages/repositories.config
+# NuGet v3's project.json files produces more ignorable files
+*.nuget.props
+*.nuget.targets
+
+# Microsoft Azure Build Output
+csx/
+*.build.csdef
+
+# Microsoft Azure Emulator
+ecf/
+rcf/
+
+# Windows Store app package directories and files
+AppPackages/
+BundleArtifacts/
+Package.StoreAssociation.xml
+_pkginfo.txt
+*.appx
+
+# Visual Studio cache files
+# files ending in .cache can be ignored
+*.[Cc]ache
+# but keep track of directories ending in .cache
+!*.[Cc]ache/
+
+# Others
+ClientBin/
+~$*
+*~
+*.dbmdl
+*.dbproj.schemaview
+*.jfm
+*.pfx
+*.publishsettings
+orleans.codegen.cs
+
+# Including strong name files can present a security risk
+# (https://github.com/github/gitignore/pull/2483#issue-259490424)
+#*.snk
+
+# Since there are multiple workflows, uncomment next line to ignore bower_components
+# (https://github.com/github/gitignore/pull/1529#issuecomment-104372622)
+#bower_components/
+
+# RIA/Silverlight projects
+Generated_Code/
+
+# Backup & report files from converting an old project file
+# to a newer Visual Studio version. Backup files are not needed,
+# because we have git ;-)
+_UpgradeReport_Files/
+Backup*/
+UpgradeLog*.XML
+UpgradeLog*.htm
+ServiceFabricBackup/
+*.rptproj.bak
+
+# SQL Server files
+*.mdf
+*.ldf
+*.ndf
+
+# Business Intelligence projects
+*.rdl.data
+*.bim.layout
+*.bim_*.settings
+*.rptproj.rsuser
+
+# Microsoft Fakes
+FakesAssemblies/
+
+# GhostDoc plugin setting file
+*.GhostDoc.xml
+
+# Node.js Tools for Visual Studio
+.ntvs_analysis.dat
+node_modules/
+
+# Visual Studio 6 build log
+*.plg
+
+# Visual Studio 6 workspace options file
+*.opt
+
+# Visual Studio 6 auto-generated workspace file (contains which files were open etc.)
+*.vbw
+
+# Visual Studio LightSwitch build output
+**/*.HTMLClient/GeneratedArtifacts
+**/*.DesktopClient/GeneratedArtifacts
+**/*.DesktopClient/ModelManifest.xml
+**/*.Server/GeneratedArtifacts
+**/*.Server/ModelManifest.xml
+_Pvt_Extensions
+
+# Paket dependency manager
+.paket/paket.exe
+paket-files/
+
+# FAKE - F# Make
+.fake/
+
+# JetBrains Rider
+.idea/
+*.sln.iml
+
+# CodeRush personal settings
+.cr/personal
+
+# Python Tools for Visual Studio (PTVS)
+__pycache__/
+*.pyc
+
+# Cake - Uncomment if you are using it
+# tools/**
+# !tools/packages.config
+
+# Tabs Studio
+*.tss
+
+# Telerik's JustMock configuration file
+*.jmconfig
+
+# BizTalk build output
+*.btp.cs
+*.btm.cs
+*.odx.cs
+*.xsd.cs
+
+# OpenCover UI analysis results
+OpenCover/
+
+# Azure Stream Analytics local run output
+ASALocalRun/
+
+# MSBuild Binary and Structured Log
+*.binlog
+
+# NVidia Nsight GPU debugger configuration file
+*.nvuser
+
+# MFractors (Xamarin productivity tool) working folder
+.mfractor/
+
+# Local History for Visual Studio
+.localhistory/
\ No newline at end of file
diff --git a/homework/45278/js2html/js2html/Extensions/TokenizerExtensions.cs b/homework/45278/js2html/js2html/Extensions/TokenizerExtensions.cs
new file mode 100644
index 0000000..1a9da1b
--- /dev/null
+++ b/homework/45278/js2html/js2html/Extensions/TokenizerExtensions.cs
@@ -0,0 +1,79 @@
+using System;
+using System.Collections.Generic;
+using System.Text;
+
+namespace js2html.Extensions
+{
+    public static class TokenizerExtensions
+    {
+        public static IEnumerable<string> ParseHtml(this Tokenizer tokenizer)
+        {
+            var whitespace = string.Empty;
+            foreach(var token in tokenizer.Tokens)
+            {
+                if (token.TokenType == Models.TokenType.Number)
+                {
+                    var result = string.Format("<span class=\"number\">{0}{1}</span>", whitespace, token.Lexeme);
+                    whitespace = string.Empty;
+                    yield return result;
+                }
+                else if(token.TokenType == Models.TokenType.String)
+                {
+                    var result = string.Format("<span class=\"string\" style=\"color:indianred\">{0}{1}</span>", whitespace, token.Lexeme);
+                    whitespace = string.Empty;
+                    yield return result;
+                }
+                else if (tokenizer.KeywordsTable.ContainsKey(token.Lexeme))
+                {
+                    var result = string.Format("<span class=\"keyword\" style=\"color:blue\">{0}{1}</span>", whitespace, token.Lexeme);
+                    whitespace = string.Empty;
+                    yield return result;
+                }
+                else if (token.TokenType == Models.TokenType.Identifier)
+                {
+                    var result = string.Format("<span class=\"identifier\">{0}{1}</span>", whitespace, token.Lexeme);
+                    whitespace = string.Empty;
+                    yield return result;
+                }
+                else if (token.TokenType == Models.TokenType.Whitespace)
+                {
+                    if(whitespace != string.Empty)
+                    {
+                        var tempWhitespace = token.Lexeme.Replace(" ", "&nbsp;").Replace("\r\n", "<br>").Replace("\n","<br>").Replace("\t", "&nbsp;&nbsp;&nbsp;&nbsp;");
+                        whitespace = whitespace + tempWhitespace;
+                    }
+                    else
+                        whitespace = token.Lexeme.Replace(" ", "&nbsp;").Replace("\r\n", "<br>").Replace("\n", "<br>").Replace("\t", "&nbsp;&nbsp;&nbsp;&nbsp;");
+                }
+                else if (token.TokenType == Models.TokenType.Eof)
+                    yield return whitespace;
+                else
+                {
+                    //string result = "";
+                    //if (whitespace.Contains("<br>")) 
+                    //{
+                    //    result = string.Format("{0}<span class=\"operator\">{1}</span>", whitespace, token.Lexeme);
+                    //}
+                    //else
+                    var result = string.Format("<span class=\"operator\">{0}{1}</span>", whitespace, token.Lexeme);
+                    whitespace = string.Empty;
+                    yield return result;
+                }
+            }
+        }
+        
+        //static private string BuildWhitespace(string lexeme)
+        //{ 
+        //    StringBuilder result = new StringBuilder();
+        //    foreach(var c in lexeme)
+        //    {
+        //        if (c != '\n')
+        //            result.Append("&nbsp;");
+        //        else
+        //            result.Append("<br>");
+        //    }
+            
+        //    return result.ToString();
+        //}
+    }
+}
diff --git a/homework/45278/js2html/js2html/Models/Token.cs b/homework/45278/js2html/js2html/Models/Token.cs
new file mode 100644
index 0000000..a0204f3
--- /dev/null
+++ b/homework/45278/js2html/js2html/Models/Token.cs
@@ -0,0 +1,22 @@
+using System;
+using System.Collections.Generic;
+using System.Text;
+
+namespace js2html.Models
+{
+    public class Token
+    {
+        public TokenType TokenType { get; set; }
+        public int Line { get; set; }
+        public string Lexeme { get; set; }
+        public double NumericValue { get; set; }
+
+        public Token(TokenType tokenType, int line, string lexeme = "", double numericValue = 0 )
+        {
+            TokenType = tokenType;
+            Line = line;
+            Lexeme = lexeme;
+            NumericValue = numericValue;
+        }
+    }
+}
diff --git a/homework/45278/js2html/js2html/Models/TokenType.cs b/homework/45278/js2html/js2html/Models/TokenType.cs
new file mode 100644
index 0000000..13061e9
--- /dev/null
+++ b/homework/45278/js2html/js2html/Models/TokenType.cs
@@ -0,0 +1,106 @@
+using System;
+using System.Collections.Generic;
+using System.Text;
+
+namespace js2html.Models
+{
+    public enum TokenType
+    {
+        // Single-character tokens.
+        LeftParen,
+        RightParen,
+        LeftBrace,
+        RightBrace,
+        Comma,
+        Dot,
+        Minus,
+        Plus,
+        Semicolon,
+        Star,
+        Division,
+        Modulo,
+        BitwiseNot,
+        BitwiseAnd,
+        BitwiseXor,
+        BitwiseOr,
+        QuestionMark,
+        Colon,
+        LeftSquareBracket,
+        RightSquareBracket,
+
+        // One or two character tokens
+        Bang,
+        BangEqual,
+        Equal,
+        EqualEqual,
+        StrictEqual,
+        StrictNotEqual,
+        Greater,
+        GreaterEqual,
+        Less,
+        LessEqual,
+        MinusMinus,
+        PlusPlus,
+        LeftShift,
+        RightShift,
+        LogicalAnd,
+        LogicalOr,
+        StarEqual,
+        DivideEqual,
+        ModuloEqual,
+        PlusEqual,
+        MinusEqual,
+        LeftShiftEqual,
+        RightShiftEqual,
+        BitwiseAndEqual,
+        BitwiseXorEqual,
+        BitwiseOrEqual,
+
+        Identifier,
+        String,
+        Number,
+
+        // Keywords. ECMAScript 2015
+        Break,
+        Case,
+        Catch,
+        Class,
+        Const,
+        Continue,
+        Debugger,
+        Default,
+        Delete,
+        Do,
+        Else,
+        Export,
+        Extends,
+        Finally,
+        For,
+        Function,
+        If,
+        Import,
+        In,
+        Instanceof,
+        New,
+        Return,
+        Super,
+        Switch,
+        This,
+        Throw,
+        Try,
+        Typeof,
+        Var,
+        Void,
+        While,
+        With,
+        Yield,
+        Null,
+        Undefined,
+        True,
+        False,
+
+        Eof,
+        Invalid,
+        Whitespace
+    }
+}
diff --git a/homework/45278/js2html/js2html/Program.cs b/homework/45278/js2html/js2html/Program.cs
new file mode 100644
index 0000000..9bf0ebb
--- /dev/null
+++ b/homework/45278/js2html/js2html/Program.cs
@@ -0,0 +1,29 @@
+using js2html.Extensions;
+using System;
+using System.IO;
+using System.Text;
+
+namespace js2html
+{
+    class Program
+    {
+        static void Main(string[] args)
+        {
+            if(args.Length == 2)
+            {
+                string path = args[0];
+                string code = File.ReadAllText(path);
+                Tokenizer tokenizer = new Tokenizer(code);
+                tokenizer.Tokens = tokenizer.Tokenize();
+                StringBuilder html = new StringBuilder("<!DOCTYPE html>\n<html>\n<head>\n</head>\n<body>\n");
+                foreach (var str in tokenizer.ParseHtml())
+                {
+                    html.Append(str);
+                }
+                html.Append("</body>\n</html>");
+                File.WriteAllText(args[1], html.ToString());
+                Console.WriteLine("Finished...");
+            }
+        }
+    }
+}
diff --git a/homework/45278/js2html/js2html/Tokenizer.cs b/homework/45278/js2html/js2html/Tokenizer.cs
new file mode 100644
index 0000000..fa61775
--- /dev/null
+++ b/homework/45278/js2html/js2html/Tokenizer.cs
@@ -0,0 +1,288 @@
+using js2html.Models;
+using System;
+using System.Collections.Generic;
+using System.Text;
+
+namespace js2html
+{
+    public class Tokenizer
+    {
+        public Dictionary<string, TokenType> KeywordsTable { get; set; }
+        public int Line { get; set; }
+        public int Current { get; set; }
+        public string Code { get; set; }
+        public IEnumerable<Token> Tokens { get; set; }
+        public Tokenizer(string code)
+        {
+            KeywordsTable = new Dictionary<string, TokenType>();
+            KeywordsTable.Add("break", TokenType.Break);
+            KeywordsTable.Add("case", TokenType.Case);
+            KeywordsTable.Add("catch", TokenType.Catch);
+            KeywordsTable.Add("class", TokenType.Class);
+            KeywordsTable.Add("const", TokenType.Const);
+            KeywordsTable.Add("continue", TokenType.Continue);
+            KeywordsTable.Add("debugger", TokenType.Debugger);
+            KeywordsTable.Add("default", TokenType.Default);
+            KeywordsTable.Add("delete", TokenType.Delete);
+            KeywordsTable.Add("do", TokenType.Do);
+            KeywordsTable.Add("else", TokenType.Else);
+            KeywordsTable.Add("export", TokenType.Export);
+            KeywordsTable.Add("extends", TokenType.Extends);
+            KeywordsTable.Add("finally", TokenType.Finally);
+            KeywordsTable.Add("for", TokenType.For);
+            KeywordsTable.Add("function", TokenType.Function);
+            KeywordsTable.Add("if", TokenType.If);
+            KeywordsTable.Add("import", TokenType.Import);
+            KeywordsTable.Add("in", TokenType.In);
+            KeywordsTable.Add("instanceof", TokenType.Instanceof);
+            KeywordsTable.Add("new", TokenType.New);
+            KeywordsTable.Add("return", TokenType.Return);
+            KeywordsTable.Add("super", TokenType.Super);
+            KeywordsTable.Add("switch", TokenType.Switch);
+            KeywordsTable.Add("this", TokenType.This);
+            KeywordsTable.Add("throw", TokenType.Throw);
+            KeywordsTable.Add("try", TokenType.Try);
+            KeywordsTable.Add("typeof", TokenType.Typeof);
+            KeywordsTable.Add("var", TokenType.Var);
+            KeywordsTable.Add("void", TokenType.Void);
+            KeywordsTable.Add("while", TokenType.While);
+            KeywordsTable.Add("with", TokenType.With);
+            KeywordsTable.Add("yield", TokenType.Yield);
+            KeywordsTable.Add("null", TokenType.Null);
+            KeywordsTable.Add("undefined", TokenType.Undefined);
+            KeywordsTable.Add("true", TokenType.True);
+            KeywordsTable.Add("false", TokenType.False);
+
+            Current = 0;
+            Line = 1;
+            Code = code;
+        }
+
+        public IEnumerable<Token> Tokenize()
+        {
+            List<Token> tokens = new List<Token>();
+            do
+            {
+                tokens.Add(GetNextToken());
+            } while (tokens[tokens.Count - 1].TokenType != TokenType.Eof);
+            return tokens;
+        }
+
+        private Token ProduceWhitespaceToken()
+        {
+            var lexeme = new StringBuilder();
+            while(string.IsNullOrWhiteSpace(Code[Current].ToString()))
+            {
+                lexeme.Append(Code[Current]);
+                if (Code[Current] == '\n')
+                {
+                    Current++;
+                    return new Token(TokenType.Whitespace, Line++, lexeme.ToString());
+                }
+                Current++;
+            }
+            return new Token(TokenType.Whitespace, Line, lexeme.ToString());
+        }
+
+        private string ReadString()
+        {
+            var opening = Code[Current++];
+            var lexeme = new StringBuilder(opening);
+            while (!Match(opening))
+            {
+                lexeme.Append(Code[Current]);
+                Current++;
+            }
+            lexeme.Append(opening);
+            return lexeme.ToString();
+        }
+
+        private string ReadNumber()
+        {
+            var lexeme = new StringBuilder();
+            while(Code[Current] >= '0' && Code[Current] <= '9')
+            {
+                lexeme.Append(Code[Current]);
+                Current++;
+            }
+            return lexeme.ToString();
+        }
+
+        private string ReadKeyword()
+        {
+            var lexeme = new StringBuilder();
+            while (Code[Current] >= 'a' && Code[Current] <= 'z')
+            {
+                lexeme.Append(Code[Current]);
+                Current++;
+            }
+            return lexeme.ToString();
+        }
+
+        private string ReadIdentifier()
+        {
+            var lexeme = new StringBuilder();
+            while (IsValidIdentifierChar())
+            {
+                lexeme.Append(Code[Current]);
+                Current++;
+            }
+            return lexeme.ToString();
+        }
+
+        public Token GetNextToken()
+        {
+            if (Current == Code.Length)
+            {
+                return new Token(TokenType.Eof, Line);
+            }
+            if (Code[Current] == '\0')
+            {
+                return new Token(TokenType.Eof, Line);
+            }
+            
+
+            if (string.IsNullOrWhiteSpace(Code[Current].ToString())) return ProduceWhitespaceToken();
+
+            switch (Code[Current])
+            {
+                case '(': Current++; return new Token(TokenType.LeftParen, Line, "(");
+                case ')': Current++; return new Token(TokenType.RightParen, Line, ")");
+                case '{': Current++; return new Token(TokenType.LeftBrace, Line, "{");
+                case '}': Current++; return new Token(TokenType.RightBrace, Line, "}");
+                case ',': Current++; return new Token(TokenType.Comma, Line, ",");
+                case '.': Current++; return new Token(TokenType.Dot, Line, ".");
+                case '-':
+                    Current++;
+                    if (Match('-'))
+                        return new Token(TokenType.MinusMinus, Line, "--");
+                    else if (Match('='))
+                        return new Token(TokenType.MinusEqual, Line, "-=" );
+                    else
+                        return new Token(TokenType.Minus, Line, "-");
+                case '+':
+                    Current++;
+                    if (Match('+'))
+                        return new Token(TokenType.PlusPlus, Line, "++");
+                    else if (Match('='))
+                        return new Token(TokenType.PlusEqual, Line, "+=");
+                    else
+                        return new Token(TokenType.Plus, Line, "+");
+                case ';': Current++; return new Token(TokenType.Semicolon, Line, ";");
+                case '*': Current++; return new Token(TokenType.Star, Line, "*");
+                case '/': Current++; return new Token(TokenType.Division, Line, "/");
+                case '%': Current++; return new Token(TokenType.Modulo, Line, "%");
+                case '~': Current++; return new Token(TokenType.BitwiseNot, Line, "~");
+                case '=':
+                    Current++;
+                    if (Match('='))
+                    {
+                        if (Match('='))
+                            return new Token(TokenType.StrictEqual, Line, "===");
+                        else
+                            return new Token(TokenType.EqualEqual, Line, "==");
+                    }
+                    else
+                        return new Token(TokenType.Equal, Line, "=");
+                case '!':
+                    Current++;
+                    if (Match('='))
+                    {
+                        if (Match('='))
+                            return new Token(TokenType.StrictNotEqual, Line, "!==");
+                        else
+                            return new Token(TokenType.BangEqual, Line, "!!");
+                    }
+                    else
+                        return new Token(TokenType.Bang, Line, "!");
+                case '>':
+                    Current++;
+                    if (Match('='))
+                        return new Token(TokenType.GreaterEqual, Line, ">=");
+                    else if (Match('>'))
+                        return new Token(TokenType.RightShift, Line, ">>");
+                    else
+                        return new Token(TokenType.Greater, Line, ">");
+                case '<':
+                    Current++;
+                    if (Match('='))
+                        return new Token(TokenType.LessEqual, Line, "<=");
+                    else if (Match('<'))
+                        return new Token(TokenType.LeftShift, Line, "<<");
+                    else
+                        return new Token(TokenType.Less, Line, "<");
+                case '&':
+                    Current++;
+                    if (Match('&')) return new Token(TokenType.LogicalAnd, Line, "&&");
+                    else return new Token(TokenType.BitwiseAnd, Line, "&");
+                case '|':
+                    Current++;
+                    if (Match('|')) return new Token(TokenType.LogicalOr, Line,"||");
+                    else return new Token(TokenType.BitwiseOr, Line, "|");
+                case '^': Current++; return new Token(TokenType.BitwiseXor, Line, "^");
+                case '?': Current++; return new Token(TokenType.QuestionMark, Line, "?");
+                case ':': Current++; return new Token(TokenType.Colon, Line, ":");
+                case '[': Current++; return new Token(TokenType.LeftSquareBracket, Line, "[");
+                case ']': Current++; return new Token(TokenType.RightSquareBracket, Line, "]");
+                default:
+                    break;
+            }
+            
+            if(Code[Current] == '\'' || Code[Current] == '"')
+            {
+                var lexeme = ReadString();
+                return new Token(TokenType.String, Line, lexeme);
+            }
+
+            if(Code[Current] >= '0' && Code[Current] <= '9')
+            {
+                var lexeme = ReadNumber();
+                return new Token(TokenType.Number, Line, lexeme, double.Parse(lexeme));
+            }
+
+            if(Code[Current] >= 'a' && Code[Current] <= 'z')
+            {
+                var start = Current;
+                var lexeme = ReadKeyword();
+                TokenType type = TokenType.Eof;
+                if(KeywordsTable.TryGetValue(lexeme, out type))
+                {
+                    return new Token(type, Line, lexeme);
+                }
+                else
+                {
+                    Current = start;
+                }
+            }
+
+            if(IsValidIdentifierStarting())
+            {
+                var lexeme = ReadIdentifier();
+                return new Token(TokenType.Identifier, Line, lexeme);
+            }
+
+
+            return new Token(TokenType.Eof, Line);
+        }
+
+        private bool IsValidIdentifierStarting()
+        {
+            return (Code[Current] >= 'A' && Code[Current] <= 'z') || Code[Current] == '_';
+        }
+
+        private bool IsValidIdentifierChar()
+        {
+            return IsValidIdentifierStarting() || (Code[Current] >= '0' && Code[Current] <= '9');
+        }
+
+        private bool Match(char c)
+        {
+            if (c == Code[Current])
+            {
+                ++Current;
+                return true;
+            }
+            return false;
+        }
+    }
+}
diff --git a/homework/45278/js2html/js2html/hello.html b/homework/45278/js2html/js2html/hello.html
new file mode 100644
index 0000000..2c8f911
--- /dev/null
+++ b/homework/45278/js2html/js2html/hello.html
@@ -0,0 +1,7 @@
+<!DOCTYPE html>
+<html>
+<head>
+</head>
+<body>
+<span class="keyword" style="color:blue">function</span><span class="identifier">&nbsp;answer</span><span class="operator">(</span><span class="operator">)</span><span class="operator">&nbsp;{</span><span class="keyword" style="color:blue"><br>&nbsp;&nbsp;&nbsp;&nbsp;return</span><span class="number">&nbsp;42</span><span class="operator">;</span><span class="operator"><br>}</span><span class="identifier"><br>console</span><span class="operator">.</span><span class="identifier">log</span><span class="operator">(</span><span class="string" style="color:indianred">The "Answer" is: '</span><span class="operator">&nbsp;+</span><span class="identifier">&nbsp;answer</span><span class="operator">(</span><span class="operator">)</span><span class="operator">)</span><span class="operator">;</span><br></body>
+</html>
\ No newline at end of file
diff --git a/homework/45278/js2html/js2html/hello.js b/homework/45278/js2html/js2html/hello.js
new file mode 100644
index 0000000..ab5524a
--- /dev/null
+++ b/homework/45278/js2html/js2html/hello.js
@@ -0,0 +1,4 @@
+function answer() {
+	return 42;
+}
+console.log('The "Answer" is: ' + answer());
diff --git a/homework/45278/js2html/js2html/js2html.csproj b/homework/45278/js2html/js2html/js2html.csproj
new file mode 100644
index 0000000..b5c27ba
--- /dev/null
+++ b/homework/45278/js2html/js2html/js2html.csproj
@@ -0,0 +1,14 @@
+<Project Sdk="Microsoft.NET.Sdk">
+
+  <PropertyGroup>
+    <OutputType>Exe</OutputType>
+    <TargetFramework>netcoreapp2.1</TargetFramework>
+    <GeneratePackageOnBuild>false</GeneratePackageOnBuild>
+    <PackageRequireLicenseAcceptance>false</PackageRequireLicenseAcceptance>
+  </PropertyGroup>
+
+  <ItemGroup>
+    <PackageReference Include="Sprache" Version="2.2.0" />
+  </ItemGroup>
+
+</Project>