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POParsing latin plant names with piglet fluent configuration
 

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    <p>I have the following tests.And Classes. Now I just need to find how to write the rules and it seemed so simple ;-). But I'm going nowhere fast. As the tags say, I would like to use and learn piglet for this.</p> <pre><code>Public Class Plant Public Property Genus As String Public Property Species As String Public Property SubSpecies As String Public Property IsHybrid As Boolean End Class Public Class ParserTests &lt;Test&gt; Public Sub IfGenusCanBeFoundWhenOnlyGenusAndSpiecesAreThere() Dim parser = New ParseLatinPlantName Dim result = parser.Parse("Salvia sylvatica") Assert.AreEqual("Salvia", result.Genus) End Sub &lt;Test&gt; Public Sub IfSpeciesCanBeFoundWhenOnlyGenusAndSpiecesAreThere() Dim parser = New ParseLatinPlantName Dim result = parser.Parse("Salvia sylvatica") Assert.AreEqual("sylvatica", result.Species) End Sub &lt;Test&gt; Public Sub IfSubSpeciesCanBeFoundWhenSubSpeciesIsProvided() Dim parser = New ParseLatinPlantName Dim result = parser.Parse("Salvia sylvatica sp. crimsonii") Assert.AreEqual("crimsonii", result.SubSpecies) End Sub &lt;Test&gt; Public Sub IfIsHybridIsTrueWhenxIsInNameCanBeFoundWhenSubSpeciesIsProvided() Dim parser = New ParseLatinPlantName Dim result = parser.Parse("Salvia x jamensis") Assert.IsTrue(result.IsHybrid) End Sub End Class </code></pre> <p>And here is what I tried so far.</p> <pre><code>Public Class ParseLatinPlantName Public Function Parse(ByVal name As String) As Plant Dim config = ParserFactory.Fluent() Dim expr = config.Rule() Dim name1 = config.Expression() name1.ThatMatches("[a-z]+").AndReturns(Function(f) f) Dim space1 = config.Expression() space1.ThatMatches(" ").AndReturns(Function(f) f) expr.IsMadeUp.By(name).As("Genus").Followed.By(name).As("Species").WhenFound(Function(f) New Plant With {.Genus = f.Genus}) Dim parser = config.CreateParser() Dim result = DirectCast(parser.Parse(name), Plant) Return result End Function End Class </code></pre> <p>Update</p> <p>I got the first two tests passing thanks to Randompunter. </p> <pre><code>Public Class ParseLatinPlantName Public Function Parse(ByVal name As String) As Plant Dim config = ParserFactory.Fluent() Dim expr = config.Rule() Dim name1 = config.Expression() name1.ThatMatches("\w+").AndReturns(Function(f) f) expr.IsMadeUp.By(name1).As("Genus") _ .Followed.By(name1).As("Species") _ .WhenFound(Function(f) New Plant With {.Genus = f.Genus, .Species = f.Species}) Dim parser = config.CreateParser() Dim result = DirectCast(parser.Parse(name), Plant) Return result End Function End Class </code></pre>
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    1. USchrissie1
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    1. COwell, what *are* the rules? without them it's rather hard to start, crystal ball's a little hazy today... and also, what have you tried?
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    2. COThe rules are to get the tests passing.
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    3. COWhat is your question? You haven't asked anything.
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      1. USDan Puzey
 

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