1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
|
//
// ISyntaxMode.cs
//
// Author:
// Mike Krüger <mkrueger@xamarin.com>
//
// Copyright (c) 2012 Xamarin Inc. (http://xamarin.com)
//
// Permission is hereby granted, free of charge, to any person obtaining a copy
// of this software and associated documentation files (the "Software"), to deal
// in the Software without restriction, including without limitation the rights
// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
// copies of the Software, and to permit persons to whom the Software is
// furnished to do so, subject to the following conditions:
//
// The above copyright notice and this permission notice shall be included in
// all copies or substantial portions of the Software.
//
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
// THE SOFTWARE.
using System;
using System.Collections.Generic;
using System.Text;
using MonoDevelop.Ide.Editor;
using MonoDevelop.Core.Text;
using System.Collections.Immutable;
using System.Threading.Tasks;
using System.Threading;
using System.Linq;
namespace MonoDevelop.Ide.Editor.Highlighting
{
public sealed class HighlightedLine
{
public ISegment TextSegment { get; }
/// <summary>
/// The segment offsets are 0 at line start regardless of where the line is inside the document.
/// </summary>
public IReadOnlyList<ColoredSegment> Segments { get; private set; }
bool? isContinuedBeyondLineEnd;
public bool? IsContinuedBeyondLineEnd {
get {
if (isContinuedBeyondLineEnd.HasValue)
return isContinuedBeyondLineEnd.Value;
var result = Segments.Count > 0 ? TextSegment.Length < Segments.Last ().EndOffset : false;
return isContinuedBeyondLineEnd = result;
}
set {
isContinuedBeyondLineEnd = value;
}
}
public HighlightedLine (ISegment textSegment, IReadOnlyList<ColoredSegment> segments)
{
TextSegment = textSegment;
Segments = segments;
}
}
/// <summary>
/// The basic interface for all syntax modes
/// </summary>
public interface ISyntaxHighlighting : IDisposable
{
/// <summary>
/// Gets colorized segments (aka chunks) from offset to offset + length.
/// </summary>
/// <param name='line'>
/// The starting line at (offset). This is the same as Document.GetLineByOffset (offset).
/// </param>
Task<HighlightedLine> GetHighlightedLineAsync (IDocumentLine line, CancellationToken cancellationToken);
Task<ScopeStack> GetScopeStackAsync (int offset, CancellationToken cancellationToken);
event EventHandler<LineEventArgs> HighlightingStateChanged;
}
public sealed class DefaultSyntaxHighlighting : ISyntaxHighlighting
{
public static readonly DefaultSyntaxHighlighting Instance = new DefaultSyntaxHighlighting ();
DefaultSyntaxHighlighting ()
{
}
public Task<HighlightedLine> GetHighlightedLineAsync (IDocumentLine line, CancellationToken cancellationToken)
{
return Task.FromResult (new HighlightedLine (line, new [] { new ColoredSegment (0, line.Length, ScopeStack.Empty) }));
}
public Task<ScopeStack> GetScopeStackAsync (int offset, CancellationToken cancellationToken)
{
return Task.FromResult (ScopeStack.Empty);
}
public event EventHandler<LineEventArgs> HighlightingStateChanged { add { } remove { } }
public void Dispose()
{
}
}
}
|
