simplified GetHighlight text query

Author: Hendy

README.md

@@ -1,5 +1,5 @@
 # Umbraco Look (Alpha)
-Umbraco Examine Lucene indexer and searcher with support for text match highlighting and geospatial queries.
+Extends Umbraco Examine adding support for: text match highlighting, geospatial querying and tag faceting.
 
 [The NuGet Package](https://www.nuget.org/packages/Our.Umbraco.Look) installs a single assembly _Our.Umbraco.Look.dll_ with dependencies on: 
 
@@ -91,8 +91,7 @@ var lookQuery = new LookQuery()
 
 	TextQuery = new TextQuery() {
 		SearchText = "some text to search for",
-		HighlightFragments = 2, // highlight text containing the search term twice should be returned
-		HighlightSeparator = " ... ", // text to inject between any search term matches
+		GetHighlight = true, // return highlight extract from the text field containing the search text
 		GetText = true // raw text field should be returned (potentially a large document)
 	},
 

src/Our.Umbraco.Look.sln

@@ -13,7 +13,6 @@ EndProject
 Project("{2150E333-8FDC-42A3-9474-1A3956D46DE8}") = "build", "build", "{453855DC-542E-404A-9378-D53153A59C8F}"
 	ProjectSection(SolutionItems) = preProject
 		..\build\Package.nuspec = ..\build\Package.nuspec
-		..\build\Package.xml = ..\build\Package.xml
 	EndProjectSection
 EndProject
 Global

src/Our.Umbraco.Look/Models/TextQuery.cs

@@ -13,14 +13,9 @@ public class TextQuery
         public float Fuzzyness { get; set; } = 0;
 
         /// <summary>
-        /// The max number of fragments to show, 0 = highlighting disabled
+        /// When true (and SearchText provided), a hightlight extract containing the search text will be returned
         /// </summary>
-        public int HighlightFragments { get; set; } = 0;
-
-        /// <summary>
-        /// Text rendered between any highlight fragments
-        /// </summary>
-        public string HighlightSeparator { get; set; } = "...";
+        public bool GetHighlight { get; set; } = false;
 
         /// <summary>
         /// Flag to indicate whether the source text field should be returned

src/Our.Umbraco.Look/Services/LookSearchService.cs

@@ -250,7 +250,7 @@ public static LookResult Query(LookQuery lookQuery)
                     }
 
                     // setup the getHightlight func if required
-                    if (lookQuery.TextQuery.HighlightFragments > 0 && !string.IsNullOrWhiteSpace(lookQuery.TextQuery.SearchText))
+                    if (lookQuery.TextQuery != null && lookQuery.TextQuery.GetHighlight && !string.IsNullOrWhiteSpace(lookQuery.TextQuery.SearchText))
                     {
                         var queryParser = new QueryParser(Lucene.Net.Util.Version.LUCENE_29, LookConstants.TextField, LookService.Analyzer);
 
@@ -268,8 +268,8 @@ public static LookResult Query(LookQuery lookQuery)
                             var highlight = highlighter.GetBestFragments(
                                                             tokenStream,
                                                             x,
-                                                            lookQuery.TextQuery.HighlightFragments, // max number of fragments
-                                                            lookQuery.TextQuery.HighlightSeparator); // fragment separator
+                                                            1, // max number of fragments
+                                                            "..."); 
 
                             return new HtmlString(highlight);
                         };