How to use GherkinLine class of Gherkin package

...108            mapping = dialect.WhyKeywords.Select(w => new NarrativeMap { Key = w, Type = typeof(NarrativeWhy) });109            foreach (var map in mapping)110            {111                if (current >= lines.Length) yield break;112                var gherkinLine = new GherkinLine(lines[current], current);113                if (gherkinLine.StartsWith(map.Key))114                {115                    yield return CreateNarrative(map, gherkinLine.GetRestTrimmed(map.Key.Length).Trim(), lineNumber + current);116                    current++;117                    hasTopLevel = true;118                    break;119                }120            }121            if (hasTopLevel)122            {123                hasTopLevel = false;124                // process And , But125                mapping = dialect.AndStepKeywords.Select(w => new NarrativeMap { Key = w, Type = typeof(NarrativeAndWhy) })126                    .Union(dialect.ButStepKeywords.Select(w => new NarrativeMap { Key = w, Type = typeof(NarrativeButWhy) }));127                var gotOne = false;128                while (true)129                {130                    foreach (var map in mapping)131                    {132                        if (current >= lines.Length) yield break;133                        var gherkinLine = new GherkinLine(lines[current], current);134                        if (gherkinLine.StartsWith(map.Key))135                        {136                            yield return CreateNarrative(map, gherkinLine.GetRestTrimmed(map.Key.Length), lineNumber + current);137                            current++;138                            gotOne = true;139                            break;140                        }141                    }142                    if (!gotOne) break;143                    gotOne = false;144                }145            }146            mapping = dialect.WhoKeywords.Select(w => new NarrativeMap { Key = w, Type = typeof(NarrativeWho) });147            foreach (var map in mapping)148            {149                if (current >= lines.Length) yield break;150                var gherkinLine = new GherkinLine(lines[current], current);151                if (gherkinLine.StartsWith(map.Key))152                {153                    yield return CreateNarrative(map, gherkinLine.GetRestTrimmed(map.Key.Length), lineNumber + current);154                    current++;155                    hasTopLevel = true;156                    break;157                }158            }159            if (hasTopLevel)160            {161                hasTopLevel = false;162                // process And , But163                mapping = dialect.AndStepKeywords.Select(w => new NarrativeMap { Key = w, Type = typeof(NarrativeAndWho) })164                    .Union(dialect.ButStepKeywords.Select(w => new NarrativeMap { Key = w, Type = typeof(NarrativeButWho) }));165                var gotOne = false;166                while (true)167                {168                    foreach (var map in mapping)169                    {170                        if (current >= lines.Length) yield break;171                        var gherkinLine = new GherkinLine(lines[current], current);172                        if (gherkinLine.StartsWith(map.Key))173                        {174                            yield return CreateNarrative(map, gherkinLine.GetRestTrimmed(map.Key.Length), lineNumber + current);175                            current++;176                            gotOne = true;177                            break;178                        }179                    }180                    if (!gotOne) break;181                    gotOne = false;182                }183            }184            mapping = dialect.WhereKeywords.Select(w => new NarrativeMap { Key = w, Type = typeof(NarrativeWhere) });185            foreach (var map in mapping)186            {187                if (current >= lines.Length) yield break;188                var gherkinLine = new GherkinLine(lines[current], current);189                if (gherkinLine.StartsWith(map.Key))190                {191                    yield return CreateNarrative(map, gherkinLine.GetRestTrimmed(map.Key.Length), lineNumber + current);192                    current++;193                    hasTopLevel = true;194                    break;195                }196            }197            if (hasTopLevel)198            {199                hasTopLevel = false;200                // process And , But201                mapping = dialect.AndStepKeywords.Select(w => new NarrativeMap { Key = w, Type = typeof(NarrativeAndWhere) })202                    .Union(dialect.ButStepKeywords.Select(w => new NarrativeMap { Key = w, Type = typeof(NarrativeButWhere) }));203                var gotOne = false;204                while (true)205                {206                    foreach (var map in mapping)207                    {208                        if (current >= lines.Length) yield break;209                        var gherkinLine = new GherkinLine(lines[current], current);210                        if (gherkinLine.StartsWith(map.Key))211                        {212                            yield return CreateNarrative(map, gherkinLine.GetRestTrimmed(map.Key.Length), lineNumber + current);213                            current++;214                            gotOne = true;215                            break;216                        }217                    }218                    if (!gotOne) break;219                    gotOne = false;220                }221            }222            mapping = dialect.WhatKeywords.Select(w => new NarrativeMap { Key = w, Type = typeof(NarrativeWhat) });223            foreach (var map in mapping)224            {225                if (current >= lines.Length) yield break;226                var gherkinLine = new GherkinLine(lines[current], current);227                if (gherkinLine.StartsWith(map.Key))228                {229                    yield return CreateNarrative(map, gherkinLine.GetRestTrimmed(map.Key.Length), lineNumber + current);230                    current++;231                    hasTopLevel = true;232                    break;233                }234            }235            if (hasTopLevel)236            {237                hasTopLevel = false;238                // process And , But239                mapping = dialect.AndStepKeywords.Select(w => new NarrativeMap { Key = w, Type = typeof(NarrativeAndWhat) })240                    .Union(dialect.ButStepKeywords.Select(w => new NarrativeMap { Key = w, Type = typeof(NarrativeButWhat) }));241                foreach (var map in mapping)242                {243                    if (current >= lines.Length) yield break;244                    var gherkinLine = new GherkinLine(lines[current], current);245                    if (gherkinLine.StartsWith(map.Key))246                    {247                        yield return CreateNarrative(map, gherkinLine.GetRestTrimmed(map.Key.Length), lineNumber + current);248                        current++;249                        break;250                    }251                }252            }253        }254        private struct NarrativeMap255        {256            public string Key;257            public Type Type;258        }...

...71        }72        private Token ToToken(string line)73        {74            var location = new Ast.Location(1);75            return new Token(new GherkinLine(line, 1), location);76        }77        public Token ParseToken(string line)78        {79            Token token = ToToken(line);80            if (TokenMatcher.Match_FeatureLine(token) ||81                TokenMatcher.Match_ScenarioLine(token) ||82                TokenMatcher.Match_ScenarioOutlineLine(token) ||83                TokenMatcher.Match_BackgroundLine(token) ||84                TokenMatcher.Match_ExamplesLine(token) ||85                TokenMatcher.Match_StepLine(token) ||86                TokenMatcher.Match_TagLine(token) ||87                TokenMatcher.Match_TableRow(token) ||88                SimpleMatchLanguage(token) ||89                TokenMatcher.Match_DocStringSeparator(token))...

...5using Gherkin.Ast;67namespace Gherkin8{9    public class GherkinLine : IGherkinLine10    {11        private static char[] inlineWhitespaceChars = new char[] { ' ', '\t', '\u00A0'};1213        private readonly string lineText;14        private readonly string trimmedLineText;15        public int LineNumber { get; private set; }1617        public GherkinLine(string line, int lineNumber)18        {19            this.LineNumber = lineNumber;2021            this.lineText = line;22            this.trimmedLineText = this.lineText.TrimStart();23        }2425        public void Detach()26        {27            //nop28        }2930        public int Indent31        {32            get { return lineText.Length - trimmedLineText.Length; }33        }3435        public bool IsEmpty()36        {37            return trimmedLineText.Length == 0;38        }3940        public bool StartsWith(string text)41        {42            return trimmedLineText.StartsWith(text);43        }4445        public bool StartsWithTitleKeyword(string text)46        {47            return StringUtils.StartsWith(trimmedLineText, text) &&48                StartsWithFrom(trimmedLineText, text.Length, GherkinLanguageConstants.TITLE_KEYWORD_SEPARATOR);49        }5051        private static bool StartsWithFrom(string text, int textIndex, string value)52        {53            return string.CompareOrdinal(text, textIndex, value, 0, value.Length) == 0;54        }5556        public string GetLineText(int indentToRemove)57        {58            if (indentToRemove < 0 || indentToRemove > Indent)59                return trimmedLineText;6061            return lineText.Substring(indentToRemove);62        }6364        public string GetRestTrimmed(int length)65        {66            return trimmedLineText.Substring(length).Trim();67        }6869        public IEnumerable<GherkinLineSpan> GetTags()70        {71            var uncommentedLine = Regex.Split(trimmedLineText, @"\s" + GherkinLanguageConstants.COMMENT_PREFIX)[0];72            int position = Indent;73            foreach (string item in uncommentedLine.Split(GherkinLanguageConstants.TAG_PREFIX[0]))74            {75                if (item.Length > 0)76                {77                    var tagName = GherkinLanguageConstants.TAG_PREFIX + item.TrimEnd(inlineWhitespaceChars);78                    if (tagName.Length == 1)79                        continue;8081                    if (tagName.IndexOfAny(inlineWhitespaceChars) >= 0)82                        throw new InvalidTagException("A tag may not contain whitespace", new Location(LineNumber, position));8384                    yield return new GherkinLineSpan(position, tagName);85                    position += item.Length;86                }87                position++; // separator88            }89        }90        91        public IEnumerable<GherkinLineSpan> GetTableCells()92        {93            var items = SplitCells(trimmedLineText).ToList();94            bool isBeforeFirst = true;95            foreach (var item in items.Take(items.Count - 1)) // skipping the one after last96            {97                if (!isBeforeFirst)98                {99                    int trimmedStart;100                    var cellText = Trim(item.Item1, out trimmedStart);101                    var cellPosition = item.Item2 + trimmedStart;102103                    if (cellText.Length == 0)104                        cellPosition = item.Item2;105106                    yield return new GherkinLineSpan(Indent + cellPosition + 1, cellText);107                }108109                isBeforeFirst = false;110            }111        }112113        private IEnumerable<Tuple<string, int>> SplitCells(string row)114        {115            var rowEnum = row.GetEnumerator();            116117            string cell = "";118            int pos = 0;119            int startPos = 0;120            while (rowEnum.MoveNext()) {
...

...34            ICSharpCode.AvalonEdit.Document.DocumentLine line = document.GetLineByNumber(1);35            while (line != null)36            {37                string line_text = document.GetText(line.Offset, line.TotalLength);38                Token token = new Token(new GherkinLine(line_text, line.LineNumber), location);39                try40                {41                    if (s_TokenMatcher.Match_Language(token) && IsSupported(token.MatchedText))42                    {43                        return token.MatchedText;44                    }45                    if (line.LineNumber > 5) return DEFAULT_LANGUAGE;46                    line = line.NextLine;47                }48                catch49                {50                    return DEFAULT_LANGUAGE;51                }52            }...

...17            _tokenReceiver = tokenReceiver;18        }19        public void Lex(string gherkin)20        {21            foreach (var gherkinLine in GetGherkinLines(gherkin))22            {23                MatchAndCallback("^Given (.*)", _tokenReceiver.Given, gherkinLine);24                MatchAndCallback("^When (.*)", _tokenReceiver.When, gherkinLine);25                MatchAndCallback("^Then (.*)", _tokenReceiver.Then, gherkinLine);26            }27            _tokenReceiver.EndOfFile();28        }29        private static void MatchAndCallback(string pattern, Action<string> callback, string gherkinLine)30        {31            var m = Regex.Match(gherkinLine, pattern);32            33            while (m.Success)34            {35                var theText = m.Groups[1].Value;36                callback(theText);37                38                m = m.NextMatch();39            }40        }41        private static string[] GetGherkinLines(string gherkin)42        {43            return gherkin.Split(new[] { "\n", "\r\n" }, StringSplitOptions.None);44        }45    }46}...

...26        public virtual Token Read()27        {28            var line = reader.ReadLine();29            var location = new Ast.Location(++lineNumber);30            return line == null ? new Token(null, location) : new Token(new GherkinLine(line, lineNumber), location);31        }32    }
...

1using Gherkin;2using Gherkin;3using Gherkin;4using Gherkin;5using Gherkin;6using Gherkin;7using Gherkin;8using Gherkin;9using Gherkin;10using Gherkin;11using Gherkin;12using Gherkin;13using Gherkin;14using Gherkin;15using Gherkin;16using Gherkin;17using Gherkin;18using Gherkin;19using Gherkin;20using Gherkin;21using Gherkin;22using Gherkin;23using Gherkin;24using Gherkin;25using Gherkin;

1using System;2using System.Collections.Generic;3using System.Linq;4using System.Text;5using System.Threading.Tasks;6using Gherkin;7using System.IO;8{9    {10        static void Main(string[] args)11        {12            string path = @"C:\Users\test\Documents\Visual Studio 2015\Projects\GherkinLine\GherkinLine\Feature1.feature";13            string line;14            StreamReader file = new StreamReader(path);15            while ((line = file.ReadLine()) != null)16            {17                GherkinLine gherkinLine = new GherkinLine(line, 0);18                Console.WriteLine(gherkinLine.getRestTrimmed(0));19            }20            Console.ReadLine();21        }22    }23}

1{2    {3        static void Main(string[] args)4        {5            GherkinLine gl = new GherkinLine("Scenario: Sample Scenario", 1);6            Console.WriteLine(gl.LineType);7            Console.WriteLine(gl.LineText);8            Console.WriteLine(gl.LineNumber);9            Console.WriteLine(gl.TrimmedLineText);10            Console.WriteLine(gl.Keyword);11            Console.WriteLine(gl.GetRestTrimmed(1));12            Console.WriteLine(gl.Indentation);13            Console.WriteLine(gl.Language);14            Console.WriteLine(gl.IsEmpty);15            Console.WriteLine(gl.IsBlank);16            Console.WriteLine(gl.IsComment);17            Console.WriteLine(gl.IsTag);18            Console.WriteLine(gl.IsLanguage);19            Console.WriteLine(gl.IsFeatureLine);20            Console.WriteLine(gl.IsBackgroundLine);21            Console.WriteLine(gl.IsScenarioLine);22            Console.WriteLine(gl.IsScenarioOutlineLine);23            Console.WriteLine(gl.IsExamplesLine);24            Console.WriteLine(gl.IsStepLine);25            Console.WriteLine(gl.IsDocStringSeparator);26            Console.WriteLine(gl.IsTableRow);27            Console.WriteLine(gl.IsEof);28            Console.WriteLine(gl.IsOther);29            Console.WriteLine(gl.IsNotEmpty);30            Console.WriteLine(gl.IsNotBlank);31            Console.WriteLine(gl.IsNotComment);32            Console.WriteLine(gl.IsNotTag);33            Console.WriteLine(gl.IsNotLanguage);

1using  Gherkin;2{3    {4         static   void  Main( string [] args)5        {6             string  line =  "Feature: 1" ;7            GherkinLine gherkinLine =  new  GherkinLine(line,  1 );8             string  lineText = gherkinLine.LineText;9             int  indent = gherkinLine.Indent;10             int  lineNumber = gherkinLine.LineNumber;11             bool  isEmpty = gherkinLine.IsEmpty;12             bool  isComment = gherkinLine.IsComment;13             bool  isStepLine = gherkinLine.IsStepLine;14             bool  isDocStringSeparator = gherkinLine.IsDocStringSeparator;15             bool  isTableRow = gherkinLine.IsTableRow;16             bool  isLanguage = gherkinLine.IsLanguage;17             bool  isTagLine = gherkinLine.IsTagLine;18             bool  isEOF = gherkinLine.IsEOF;19             bool  isTitle = gherkinLine.IsTitle;20             bool  isOther = gherkinLine.IsOther;21             string  trimmedLineText = gherkinLine.TrimmedLineText;22             string  keyword = gherkinLine.Keyword;23             string  title = gherkinLine.Title;24             string  restTrimmed = gherkinLine.RestTrimmed;25             string  indentString = gherkinLine.IndentString;26             string  name = gherkinLine.Name;27             string  description = gherkinLine.Description;28             string  language = gherkinLine.Language;29             string  tags = gherkinLine.Tags;30             string  contents = gherkinLine.Contents;31             string  comments = gherkinLine.Comments;32             string  tableCells = gherkinLine.TableCells;33             string  text = gherkinLine.Text;34             string  docStringSeparator = gherkinLine.DocStringSeparator;35             string  docStringContents = gherkinLine.DocStringContents;36             string  stepLine = gherkinLine.StepLine;37             string  stepKeyword = gherkinLine.StepKeyword;38             string  stepText = gherkinLine.StepText;39             string  stepArg = gherkinLine.StepArg;40             string  stepArgument = gherkinLine.StepArgument;