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How to use TokenScanner method of Gherkin.TokenScanner class

Best Gherkin-dotnet code snippet using Gherkin.TokenScanner.TokenScanner

DeveroomGherkinParser.cs

Source:DeveroomGherkinParser.cs

...58        return null;59    }60    public DeveroomGherkinDocument Parse(TextReader featureFileReader, string sourceFilePath)61    {62        var tokenScanner = (ITokenScanner) new HotfixTokenScanner(featureFileReader);63        var tokenMatcher = new TokenMatcher(DialectProvider);64        _astBuilder = new DeveroomGherkinAstBuilder(sourceFilePath, () => tokenMatcher.CurrentDialect);65        var parser = new InternalParser(_astBuilder, AstBuilder.RecordStateForLine, _monitoringService);66        var gherkinDocument = parser.Parse(tokenScanner, tokenMatcher);67        CheckSemanticErrors(gherkinDocument);68        return gherkinDocument;69    }70    public DeveroomGherkinDocument GetResult() => _astBuilder.GetResult();71    private class InternalParser : Parser<DeveroomGherkinDocument>72    {73        private readonly IMonitoringService _monitoringService;74        private readonly Action<int, int> _recordStateForLine;75        public InternalParser(IAstBuilder<DeveroomGherkinDocument> astBuilder, Action<int, int> recordStateForLine,76            IMonitoringService monitoringService)77            : base(astBuilder)78        {79            _recordStateForLine = recordStateForLine;80            _monitoringService = monitoringService;81        }82        public int NullMatchToken(int state, Token token) =>83            MatchToken(state, token, new ParserContext84            {85                Errors = new List<ParserException>(),86                TokenMatcher = new AllFalseTokenMatcher(),87                TokenQueue = new Queue<Token>(),88                TokenScanner = new NullTokenScanner()89            });90        protected override int MatchToken(int state, Token token, ParserContext context)91        {92            _recordStateForLine?.Invoke(token.Location.Line, state);93            try94            {95                return base.MatchToken(state, token, context);96            }97            catch (InvalidOperationException ex)98            {99                _monitoringService.MonitorError(ex);100                throw;101            }102        }103    }104    #region Semantic Errors105    protected virtual void CheckSemanticErrors(DeveroomGherkinDocument specFlowDocument)106    {107        var errors = new List<ParserException>();108        errors.AddRange(((DeveroomGherkinAstBuilder) _astBuilder).Errors);109        if (specFlowDocument?.Feature != null)110        {111            CheckForDuplicateScenarios(specFlowDocument.Feature, errors);112            CheckForDuplicateExamples(specFlowDocument.Feature, errors);113            CheckForMissingExamples(specFlowDocument.Feature, errors);114            CheckForRulesPreSpecFlow31(specFlowDocument.Feature, errors);115        }116        // collect117        if (errors.Count == 1)118            throw errors[0];119        if (errors.Count > 1)120            throw new CompositeParserException(errors.ToArray());121    }122    private void CheckForRulesPreSpecFlow31(Feature feature, List<ParserException> errors)123    {124        //TODO: Show error when Rule keyword is used in SpecFlow v3.0 or earlier125    }126    private void CheckForDuplicateScenarios(Feature feature, List<ParserException> errors)127    {128        // duplicate scenario name129        var duplicatedScenarios = feature.FlattenScenarioDefinitions().GroupBy(sd => sd.Name, sd => sd)130            .Where(g => g.Count() > 1).ToArray();131        errors.AddRange(132            duplicatedScenarios.Select(g =>133                new SemanticParserException(134                    $"Feature file already contains a scenario with name '{g.Key}'",135                    g.ElementAt(1).Location)));136    }137    private void CheckForDuplicateExamples(Feature feature, List<ParserException> errors)138    {139        foreach (var scenarioOutline in feature.FlattenScenarioDefinitions().OfType<ScenarioOutline>())140        {141            var duplicateExamples = scenarioOutline.Examples142                .Where(e => !string.IsNullOrWhiteSpace(e.Name))143                .Where(e => e.Tags.All(t => t.Name != "ignore"))144                .GroupBy(e => e.Name, e => e).Where(g => g.Count() > 1);145            foreach (var duplicateExample in duplicateExamples)146            {147                var message =148                    $"Scenario Outline '{scenarioOutline.Name}' already contains an example with name '{duplicateExample.Key}'";149                var semanticParserException =150                    new SemanticParserException(message, duplicateExample.ElementAt(1).Location);151                errors.Add(semanticParserException);152            }153        }154    }155    private void CheckForMissingExamples(Feature feature, List<ParserException> errors)156    {157        foreach (var scenarioOutline in feature.FlattenScenarioDefinitions().OfType<ScenarioOutline>())158            if (DoesntHavePopulatedExamples(scenarioOutline))159            {160                var message = $"Scenario Outline '{scenarioOutline.Name}' has no examples defined";161                var semanticParserException = new SemanticParserException(message, scenarioOutline.Location);162                errors.Add(semanticParserException);163            }164    }165    private static bool DoesntHavePopulatedExamples(ScenarioOutline scenarioOutline)166    {167        return !scenarioOutline.Examples.Any() ||168               scenarioOutline.Examples.Any(x => x.TableBody == null || !x.TableBody.Any());169    }170    #endregion171    #region Expected tokens172    private class NullAstBuilder : IAstBuilder<DeveroomGherkinDocument>173    {174        public void Build(Token token)175        {176        }177        public void StartRule(RuleType ruleType)178        {179        }180        public void EndRule(RuleType ruleType)181        {182        }183        public DeveroomGherkinDocument GetResult() => null;184        public void Reset()185        {186        }187    }188    private class AllFalseTokenMatcher : ITokenMatcher189    {190        public bool Match_EOF(Token token) => false;191        public bool Match_Empty(Token token) => false;192        public bool Match_Comment(Token token) => false;193        public bool Match_TagLine(Token token) => false;194        public bool Match_FeatureLine(Token token) => false;195        public bool Match_RuleLine(Token token) => false;196        public bool Match_BackgroundLine(Token token) => false;197        public bool Match_ScenarioLine(Token token) => false;198        public bool Match_ExamplesLine(Token token) => false;199        public bool Match_StepLine(Token token) => false;200        public bool Match_DocStringSeparator(Token token) => false;201        public bool Match_TableRow(Token token) => false;202        public bool Match_Language(Token token) => false;203        public bool Match_Other(Token token) => false;204        public void Reset()205        {206        }207    }208    private class NullTokenScanner : ITokenScanner209    {210        public Token Read() => new(null, new Location());211    }212    public static TokenType[] GetExpectedTokens(int state, IMonitoringService monitoringService)213    {214        var parser = new InternalParser(new NullAstBuilder(), null, monitoringService)215        {216            StopAtFirstError = true217        };218        try219        {220            parser.NullMatchToken(state, new Token(null, new Location()));221        }222        catch (UnexpectedEOFException ex)...

Program.cs

Source:Program.cs

...82        {83            Feature feature;84            using (StreamReader reader = new StreamReader(file))85            {86                var scanner = new TokenScanner(new FastSourceReader(reader));87                //var scanner = new TokenScanner(new DefaultSourceReader(reader));88                feature = (Feature)parser.Parse(scanner);89            }90#if DEBUG91                //Console.WriteLine(File.ReadAllText(file));92                //Console.WriteLine("--------------");93                var formatter = new FeatureFormatter();94                Console.WriteLine(formatter.GetFeatureText(feature));95#endif96        }97        private static void DefaultGherkinParserTest(SpecFlowLangParser parser, string file)98        {99            Feature feature;100            using (StreamReader reader = new StreamReader(file))101            {...

ParserErrorsTest.cs

Source:ParserErrorsTest.cs

...43//             jsonSerializerSettings.NullValueHandling = NullValueHandling.Ignore;4445//             try46//             {47//                 parser.Parse(new TokenScanner(new StringReader(@"# a comment48// Feature: Foo49//   Scenario: Bar50//     Given x51//       ```52//       unclosed docstring")), tokenMatcher);53//                 Assert.Fail("ParserException expected");54//             }55//             catch (ParserException)56//             {57//             }58//             var parsingResult2 = parser.Parse(new TokenScanner(new StringReader(@"Feature: Foo59//   Scenario: Bar60//     Given x61//       """"""62//       closed docstring63//       """"""")), tokenMatcher);64//             var astText2 = LineEndingHelper.NormalizeLineEndings(JsonConvert.SerializeObject(parsingResult2, jsonSerializerSettings));6566//             string expected2 = LineEndingHelper.NormalizeLineEndings(@"{67//   ""Feature"": {68//     ""Tags"": [],69//     ""Location"": {70//       ""Line"": 1,71//       ""Column"": 172//     },
...

SuccessfulParsingTests.cs

Source:SuccessfulParsingTests.cs

...24            var jsonSerializerSettings = new JsonSerializerSettings();25            jsonSerializerSettings.Formatting = Formatting.Indented;26            jsonSerializerSettings.NullValueHandling = NullValueHandling.Ignore;2728            var parsingResult1 = parser.Parse(new TokenScanner(new StringReader("Feature: Test")), tokenMatcher);29            var astText1 = LineEndingHelper.NormalizeLineEndings(JsonConvert.SerializeObject(parsingResult1, jsonSerializerSettings));30            var parsingResult2 = parser.Parse(new TokenScanner(new StringReader("Feature: Test2")), tokenMatcher);31            var astText2 = LineEndingHelper.NormalizeLineEndings(JsonConvert.SerializeObject(parsingResult2, jsonSerializerSettings));3233	    string expected1 = LineEndingHelper.NormalizeLineEndings(@"{34  ""Feature"": {35    ""Tags"": [],36    ""Location"": {37      ""Line"": 1,38      ""Column"": 139    },40    ""Language"": ""en"",41    ""Keyword"": ""Feature"",42    ""Name"": ""Test"",43    ""Children"": []44  },45  ""Comments"": []46}");47	    string expected2 = LineEndingHelper.NormalizeLineEndings(@"{48  ""Feature"": {49    ""Tags"": [],50    ""Location"": {51      ""Line"": 1,52      ""Column"": 153    },54    ""Language"": ""en"",55    ""Keyword"": ""Feature"",56    ""Name"": ""Test2"",57    ""Children"": []58  },59  ""Comments"": []60}");61            Assert.Equal(expected1, astText1);62            Assert.Equal(expected2, astText2);63        }6465        [Fact]66        public void TestChangeDefaultLanguage()67        {68            var tokenMatcher = new TokenMatcher("no");69            var parser = new Parser(new AstBuilder<GherkinDocument>());70            var jsonSerializerSettings = new JsonSerializerSettings();71            jsonSerializerSettings.Formatting = Formatting.Indented;72            jsonSerializerSettings.NullValueHandling = NullValueHandling.Ignore;7374            var parsingResult = parser.Parse(new TokenScanner(new StringReader("Egenskap: i18n support")), tokenMatcher);75            var astText = LineEndingHelper.NormalizeLineEndings(JsonConvert.SerializeObject(parsingResult, jsonSerializerSettings));7677	    string expected = LineEndingHelper.NormalizeLineEndings(@"{78  ""Feature"": {79    ""Tags"": [],80    ""Location"": {81      ""Line"": 1,82      ""Column"": 183    },84    ""Language"": ""no"",85    ""Keyword"": ""Egenskap"",86    ""Name"": ""i18n support"",87    ""Children"": []88  },
...

TokenScanner.cs

Source:TokenScanner.cs

...11    /// If the scanner sees a `#` language header, it will reconfigure itself dynamically to look 12    /// for  Gherkin keywords for the associated language. The keywords are defined in 13    /// gherkin-languages.json.14    /// </summary>15    public class TokenScanner : ITokenScanner16    {17        protected int lineNumber = 0;18        protected readonly TextReader reader;19        public TokenScanner(TextReader reader)20        {21            this.reader = reader;22        }23        public virtual Token Read()24        {25            var line = reader.ReadLine();26            var location = new Location(++lineNumber);27            return line == null ? new Token(null, location) : new Token(new GherkinLine(line, lineNumber), location);28        }29    }30}

ParseUtils.cs

Source:ParseUtils.cs

...14        public static GherkinDocument Parse(TextReader reader, string languageCode)15        {16            var parser = new Parser();17            var dialect = new GherkinDialectProvider(languageCode);18            var tokenScanner = new TokenScanner(reader);19            var tokenMatcher = new TokenMatcher(dialect);20            21            return parser.Parse(tokenScanner, tokenMatcher);22        }23    }24}...

Parser.Extensions.cs

Source:Parser.Extensions.cs

...12        {13        }14        public GherkinDocument Parse(TextReader reader)15        {16            return Parse(new TokenScanner(reader));17        }18        public GherkinDocument Parse(string sourceFile)19        {20            using (var reader = new StreamReader(sourceFile))21            {22                return Parse(new TokenScanner(reader));23            }24        }25    }26}...

TokenScanner

Using AI Code Generation

1using System;2using System.Collections.Generic;3using System.Linq;4using System.Text;5using System.Threading.Tasks;6using Gherkin;7{8    {9        static void Main(string[] args)10        {11            TokenScanner scanner = new TokenScanner();12            scanner.Scan("this is a test");13            foreach (string token in scanner.Tokens)14            {15                Console.WriteLine(token);16            }17            Console.ReadLine();18        }19    }20}21using System;22using System.Collections.Generic;23using System.Linq;24using System.Text;25using System.Threading.Tasks;26using Gherkin;27{28    {29        static void Main(string[] args)30        {31            TokenScanner scanner = new TokenScanner();32            scanner.Scan("this is a test");33            foreach (string token in scanner.Tokens)34            {35                Console.WriteLine(token);36            }37            Console.ReadLine();38        }39    }40}41using System;42using System.Collections.Generic;43using System.Linq;44using System.Text;45using System.Threading.Tasks;46using Gherkin;47{48    {49        static void Main(string[] args)50        {51            TokenScanner scanner = new TokenScanner();52            scanner.Scan("this is a test");53            foreach (string token in scanner.Tokens)54            {55                Console.WriteLine(token);56            }57            Console.ReadLine();58        }59    }60}61using System;62using System.Collections.Generic;63using System.Linq;64using System.Text;65using System.Threading.Tasks;66using Gherkin;67{68    {69        static void Main(string[] args)70        {71            TokenScanner scanner = new TokenScanner();72            scanner.Scan("this is a test");73            foreach (string token in scanner.Tokens)74            {75                Console.WriteLine(token);76            }77            Console.ReadLine();78        }79    }80}81using System;82using System.Collections.Generic;83using System.Linq;84using System.Text;85using System.Threading.Tasks;86using Gherkin;87{

TokenScanner

Using AI Code Generation

1using Gherkin;2using System;3using System.Collections.Generic;4using System.Linq;5using System.Text;6using System.Threading.Tasks;7{8    {9        static void Main(string[] args)10        {11            TokenScanner scanner = new TokenScanner();12            scanner.scan("Hello world");13            Console.WriteLine("Hello world");14            Console.ReadLine();15        }16    }17}18using Gherkin;19using System;20using System.Collections.Generic;21using System.Linq;22using System.Text;23using System.Threading.Tasks;24{25    {26        static void Main(string[] args)27        {28            TokenScanner scanner = new TokenScanner();29            scanner.scan("Hello world");30            Console.WriteLine("Hello world");31            Console.ReadLine();32        }33    }34}35using Gherkin;36using System;37using System.Collections.Generic;38using System.Linq;39using System.Text;40using System.Threading.Tasks;41{42    {43        static void Main(string[] args)44        {45            TokenScanner scanner = new TokenScanner();46            scanner.scan("Hello world");47            Console.WriteLine("Hello world");48            Console.ReadLine();49        }50    }51}52using Gherkin;53using System;54using System.Collections.Generic;55using System.Linq;56using System.Text;57using System.Threading.Tasks;58{59    {60        static void Main(string[] args)61        {62            TokenScanner scanner = new TokenScanner();63            scanner.scan("Hello world");64            Console.WriteLine("Hello world");65            Console.ReadLine();66        }67    }68}69using Gherkin;70using System;71using System.Collections.Generic;72using System.Linq;73using System.Text;74using System.Threading.Tasks;75{76    {77        static void Main(string[] args)78        {79            TokenScanner scanner = new TokenScanner();80            scanner.scan("Hello world");81            Console.WriteLine("Hello world");82            Console.ReadLine();83        }84    }85}

TokenScanner

Using AI Code Generation

1using Gherkin;2using System;3using System.Collections.Generic;4using System.Linq;5using System.Text;6using System.Threading.Tasks;7{8    {9        static void Main(string[] args)10        {11            TokenScanner ts = new TokenScanner();12            ts.GetTokens();13        }14    }15}16using Gherkin;17using System;18using System.Collections.Generic;19using System.Linq;20using System.Text;21using System.Threading.Tasks;22{23    {24        static void Main(string[] args)25        {26            TokenScanner ts = new TokenScanner();27            ts.GetTokens();28        }29    }30}31using Gherkin;32using System;33using System.Collections.Generic;34using System.Linq;35using System.Text;36using System.Threading.Tasks;37{38    {39        static void Main(string[] args)40        {41            TokenScanner ts = new TokenScanner();42            ts.GetTokens();43        }44    }45}46using Gherkin;47using System;48using System.Collections.Generic;49using System.Linq;50using System.Text;51using System.Threading.Tasks;52{53    {54        static void Main(string[] args)55        {56            TokenScanner ts = new TokenScanner();57            ts.GetTokens();58        }59    }60}61using Gherkin;62using System;63using System.Collections.Generic;64using System.Linq;65using System.Text;66using System.Threading.Tasks;67{68    {69        static void Main(string[] args)70        {71            TokenScanner ts = new TokenScanner();72            ts.GetTokens();

TokenScanner

Using AI Code Generation

1using System;2using System.Collections.Generic;3using System.Linq;4using System.Text;5using System.Threading.Tasks;6using Gherkin;7{8    {9        static void Main(string[] args)10        {11            string str = "Feature: This is a feature";12            TokenScanner ts = new TokenScanner();13            ts.scan(str);14            Console.WriteLine(ts.getTokenType());15            Console.ReadLine();16        }17    }18}19using System;20using System.Collections.Generic;21using System.Linq;22using System.Text;23using System.Threading.Tasks;24using Gherkin;25{26    {27        static void Main(string[] args)28        {29            string str = "Scenario: This is a scenario";30            TokenScanner ts = new TokenScanner();31            ts.scan(str);32            Console.WriteLine(ts.getTokenType());33            Console.ReadLine();34        }35    }36}37using System;38using System.Collections.Generic;39using System.Linq;40using System.Text;41using System.Threading.Tasks;42using Gherkin;43{44    {45        static void Main(string[] args)46        {47            string str = "Given I have 1 dollar in my account";48            TokenScanner ts = new TokenScanner();49            ts.scan(str);50            Console.WriteLine(ts.getTokenType());51            Console.ReadLine();52        }53    }54}55using System;56using System.Collections.Generic;57using System.Linq;58using System.Text;59using System.Threading.Tasks;60using Gherkin;61{62    {63        static void Main(string[] args)64        {65            string str = "When I go to the ATM";66            TokenScanner ts = new TokenScanner();67            ts.scan(str);68            Console.WriteLine(ts.getTokenType());69            Console.ReadLine();70        }71    }72}73using System;74using System.Collections.Generic;75using System.Linq;76using System.Text;77using System.Threading.Tasks;78using Gherkin;

TokenScanner

Using AI Code Generation

1using Gherkin;2using System;3{4    {5        static void Main(string[] args)6        {7            TokenScanner scanner = new TokenScanner("Gherkin");

TokenScanner

Using AI Code Generation

1using System;2using System.Collections.Generic;3using System.Linq;4using System.Text;5using System.Threading.Tasks;6{7    {8        public void Token()9        {10            string s = "Hello World";11            string[] words = s.Split(' ');12            foreach (string word in words)13            {14                Console.WriteLine(word);15            }16        }17    }18}19using System;20using System.Collections.Generic;21using System.Linq;22using System.Text;23using System.Threading.Tasks;24{25    {26        static void Main(string[] args)27        {28            TokenScanner t = new TokenScanner();29            t.Token();30            Console.ReadKey();31        }32    }33}

TokenScanner

Using AI Code Generation

1using System;2using System.Collections.Generic;3using System.Linq;4using System.Text;5using System.Threading.Tasks;6using System.IO;7{8    {9        static void Main(string[] args)10        {11            string path = @"C:\Users\Karthik\Documents\Visual Studio 2013\Projects\Gherkin\Gherkin\";12            string fileName = "Sample.feature";13            string filePath = path + fileName;14            TokenScanner ts = new TokenScanner(filePath);15            Console.WriteLine("Tokens extracted from the feature file are:");16            foreach (var item in ts.tokens)17            {18                Console.WriteLine(item);19            }20            Console.ReadLine();21        }22    }23}24using System;25using System.Collections.Generic;26using System.Linq;27using System.Text;28using System.Threading.Tasks;29using System.IO;30{31    {32        static void Main(string[] args)33        {34            string path = @"C:\Users\Karthik\Documents\Visual Studio 2013\Projects\Gherkin\Gherkin\";35            string fileName = "Sample.feature";36            string filePath = path + fileName;37            TokenScanner ts = new TokenScanner(filePath);38            Console.WriteLine("Tokens extracted from the feature file are:");39            foreach (var item in ts.tokens)40            {41                Console.WriteLine(item);42            }43            Console.ReadLine();44        }45    }46}47using System;48using System.Collections.Generic;49using System.Linq;50using System.Text;51using System.Threading.Tasks;52using System.IO;53{54    {

TokenScanner

Using AI Code Generation

1using System;2using System.Collections.Generic;3using System.IO;4using System.Linq;5using System.Text;6using System.Threading.Tasks;7using Gherkin;8{9    {10        static void Main(string[] args)11        {12            string featureFilePath = "C:\\Users\\sudhir.joshi\\Desktop\\test.feature";13            string featureFile = File.ReadAllText(featureFilePath);14            List<string> steps = new List<string>();15            TokenScanner scanner = new TokenScanner(featureFile);16            scanner.Reset();17            string token = scanner.Peek(1);18            while (token != null)19            {20                if (token == "Given")21                {22                    steps.Add(scanner.Peek(2));23                }24                else if (token == "When")25                {26                    steps.Add(scanner.Peek(2));27                }28                else if (token == "Then")29                {30                    steps.Add(scanner.Peek(2));31                }32                else if (token == "And")33                {34                    steps.Add(scanner.Peek(2));35                }36                scanner.Advance();37                token = scanner.Peek(1);38            }39            string stepDefinitionClass = "using System;\r40using System.Collections.Generic;\r41using System.Linq;\r42using System.Text;\r43using System.Threading.Tasks;\r44using TechTalk.SpecFlow;\r45{\r46    {\r47        [Given(@"I have entered (.*) into the calculator")]\r48        public void GivenIHaveEnteredIntoTheCalculator(int p0)\r49        {\r50            ScenarioContext.Current.Pending();\r51        }\r52        [Given(@"I have entered (.*) into the calculator")]\r53        public void GivenIHaveEnteredIntoTheCalculator(int p0)\r54        {\r55            ScenarioContext.Current.Pending();\r56        }\r57        [Given(@"I have entered (.*) into the calculator")]\r58        public void GivenIHaveEnteredIntoTheCalculator(int p0)\

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