1 // Copyright (c) Microsoft Corporation. All rights reserved. See License.txt in the project root for license information.
2 
3 using System.Collections.Generic;
4 using System.Diagnostics.CodeAnalysis;
5 using System.Linq;
6 using System.Web.Razor.Parser.SyntaxTree;
7 using System.Web.Razor.Text;
8 
9 namespace System.Web.Razor.Tokenizer.Symbols
10 {
11     public static class SymbolExtensions
12     {
GetContent(this SpanBuilder span)13         public static LocationTagged<string> GetContent(this SpanBuilder span)
14         {
15             return GetContent(span, e => e);
16         }
17 
18         [SuppressMessage("Microsoft.Design", "CA1006:DoNotNestGenericTypesInMemberSignatures", Justification = "Func<T> is the recommended type for generic delegates and requires this level of nesting")]
GetContent(this SpanBuilder span, Func<IEnumerable<ISymbol>, IEnumerable<ISymbol>> filter)19         public static LocationTagged<string> GetContent(this SpanBuilder span, Func<IEnumerable<ISymbol>, IEnumerable<ISymbol>> filter)
20         {
21             return GetContent(filter(span.Symbols), span.Start);
22         }
23 
GetContent(this IEnumerable<ISymbol> symbols, SourceLocation spanStart)24         public static LocationTagged<string> GetContent(this IEnumerable<ISymbol> symbols, SourceLocation spanStart)
25         {
26             if (symbols.Any())
27             {
28                 return new LocationTagged<string>(String.Concat(symbols.Select(s => s.Content)), spanStart + symbols.First().Start);
29             }
30             else
31             {
32                 return new LocationTagged<string>(String.Empty, spanStart);
33             }
34         }
35 
GetContent(this ISymbol symbol)36         public static LocationTagged<string> GetContent(this ISymbol symbol)
37         {
38             return new LocationTagged<string>(symbol.Content, symbol.Start);
39         }
40     }
41 }
42