blob: 727ff1b1b4766080116da2337c3b3ae7ccee9460 (
plain)
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
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
|
// Copyright (c) .NET Foundation and contributors. All rights reserved. Licensed under the Microsoft Reciprocal License. See LICENSE.TXT file in the project root for full license information.
namespace WixToolset.Converters
{
using System;
using System.Collections.Generic;
using System.Linq;
using System.Xml.Linq;
internal class ConversionLab : IDisposable
{
private readonly XElement targetElement;
private readonly XElement parentElement;
private readonly List<XNode> siblingNodes;
private int index;
public ConversionLab(XElement targetElement)
{
this.targetElement = targetElement;
this.parentElement = this.targetElement.Parent;
this.siblingNodes = this.parentElement.Nodes().ToList();
foreach (var siblingNode in this.siblingNodes)
{
siblingNode.Remove();
}
this.index = this.siblingNodes.IndexOf(this.targetElement);
}
public void RemoveOrphanTextNodes()
{
if (!this.targetElement.HasElements)
{
var childNodes = this.targetElement.Nodes().ToList();
foreach (var childNode in childNodes)
{
childNode.Remove();
}
}
}
public void InsertElementBeforeTargetElement(XElement newElement)
{
var index = this.index - 1;
if (0 <= index
&& this.siblingNodes[index] is XText leadingText
&& String.IsNullOrWhiteSpace(leadingText.Value))
{
this.siblingNodes.Insert(index, newElement);
this.siblingNodes.Insert(index, new XText(leadingText.Value));
this.index += 2;
}
}
private bool IsUniqueElement(XElement newElement)
{
foreach (XNode node in this.siblingNodes)
{
if (node is XElement element)
{
if (element.Name == newElement.Name)
{
return false;
}
}
}
return true;
}
public void InsertUniqueElementBeforeTargetElement(XElement newElement)
{
if (this.IsUniqueElement(newElement))
{
this.InsertElementBeforeTargetElement(newElement);
}
}
public void RemoveTargetElement()
{
this.siblingNodes.RemoveAt(this.index);
var index = this.index - 1;
if (0 <= index
&& this.siblingNodes[index] is XText leadingText
&& String.IsNullOrWhiteSpace(leadingText.Value))
{
this.siblingNodes.RemoveAt(index);
}
this.RemoveOrphanTextNodes();
}
public void ReplaceTargetElement(XElement replacement)
{
this.siblingNodes[this.index] = replacement;
}
public void AddCommentsAsSiblings(List<XNode> comments)
{
if (0 < this.index
&& this.siblingNodes[this.index - 1] is XText leadingText
&& String.IsNullOrWhiteSpace(leadingText.Value))
{
var leadingWhitespace = leadingText.Value;
--this.index;
var newComments = new List<XNode>();
foreach(var comment in comments)
{
newComments.Add(new XText(leadingWhitespace));
newComments.Add(comment);
}
comments = newComments;
}
this.siblingNodes.InsertRange(this.index, comments);
this.index = this.siblingNodes.IndexOf(this.targetElement);
}
public void Dispose()
{
this.parentElement.Add(this.siblingNodes);
}
}
}
|
