最近在做项目中用到使用到SharpDevelop的文本编辑器，AvalonEdit，要在项目中设置文本编辑器的前景色，背景色，字体，以及高亮等等，于是研究SharpDevelop的源码，
在ICSharpCode.AvalonEdit下的Highlighting下Resources文件夹下有许多.xshd文件，这些文件就是SharpDevelop中各种语言的资源文件，在这些资源文件中，如下图：
随便打开一个资源文件，比如打开CSharp-Mode.xshd这个文件，有很多节点，
<?xml version="1.0"?>
<SyntaxDefinition name="C#" extensions=".cs" xmlns="http://icsharpcode.net/sharpdevelop/syntaxdefinition/2008">
<!-- The named colors 'Comment' and 'String' are used in SharpDevelop to detect if a line is inside a multiline string/comment -->
<Color name="Comment" foreground="Green" exampleText="// comment" />
<Color name="String" foreground="Blue" exampleText="string text = "Hello, World!""/>
<Color name="Char" foreground="Magenta" exampleText="char linefeed = '\n';"/>
<Color name="Preprocessor" foreground="Green" exampleText="#region Title" />
<Color name="Punctuation" exampleText="a(b.c);" />
<Color name="ValueTypes" fontWeight="bold" foreground="Red" exampleText="bool b = true;" />
<Color name="ReferenceTypes" foreground="Red" exampleText="object o;" />
<Color name="MethodCall" foreground="MidnightBlue" fontWeight="bold" exampleText="o.ToString();"/>
<Color name="NumberLiteral" foreground="DarkBlue" exampleText="3.1415f"/>
<Color name="ThisOrBaseReference" fontWeight="bold" exampleText="this.Do(); base.Do();"/>
<Color name="NullOrValueKeywords" fontWeight="bold" exampleText="if (value == null)"/>
<Color name="Keywords" fontWeight="bold" foreground="Red" exampleText="if (a) {} else {}"/>
<Color name="GotoKeywords" foreground="Navy" exampleText="continue; return null;"/>
<Color name="ContextKeywords" foreground="Navy" exampleText="var a = from x in y select z;"/>
<Color name="ExceptionKeywords" fontWeight="bold" foreground="Teal" exampleText="try {} catch {} finally {}"/>
<Color name="CheckedKeyword" fontWeight="bold" foreground="DarkGray" exampleText="checked {}"/>
<Color name="UnsafeKeywords" foreground="Olive" exampleText="unsafe { fixed (..) {} }"/>
<Color name="OperatorKeywords" fontWeight="bold" foreground="Pink" exampleText="public static implicit operator..."/>
<Color name="ParameterModifiers" fontWeight="bold" foreground="DeepPink" exampleText="(ref int a, params int[] b)"/>
<Color name="Modifiers" foreground="Brown" exampleText="static readonly int a;"/>
<Color name="Visibility" fontWeight="bold" foreground="Blue" exampleText="public override void ToString();"/>
<Color name="NamespaceKeywords" fontWeight="bold" foreground="Green" exampleText="namespace A.B { using System; }"/>
<Color name="GetSetAddRemove" foreground="SaddleBrown" exampleText="int Prop { get; set; }"/>
<Color name="TrueFalse" fontWeight="bold" foreground="DarkCyan" exampleText="b = false; a = true;" />
<Color name="TypeKeywords" fontWeight="bold" foreground="DarkCyan" exampleText="if (x is int) { a = x as int; type = typeof(int); size = sizeof(int); c = new object(); }"/>
<RuleSet name="CommentMarkerSet">
<Keywords fontWeight="bold" foreground="Red">
<Word>TODO</Word>
<Word>FIXME</Word>
</Keywords>
<Keywords fontWeight="bold" foreground="#E0E000">
<Word>HACK</Word>
<Word>UNDONE</Word>
</Keywords>
</RuleSet>
<!-- This is the main ruleset. -->
<RuleSet>
<Span color="Preprocessor">
<Begin>\#</Begin>
<RuleSet name="PreprocessorSet">
<Span> <!-- preprocessor directives that allow comments -->
<Begin fontWeight="bold">
(define|undef|if|elif|else|endif|line)\b
</Begin>
<RuleSet>
<Span color="Comment" ruleSet="CommentMarkerSet">
<Begin>//</Begin>
</Span>
</RuleSet>
</Span>
<Span> <!-- preprocessor directives that don't allow comments -->
<Begin fontWeight="bold">
(region|endregion|error|warning|pragma)\b
</Begin>
</Span>
</RuleSet>
</Span>
<Span color="Comment">
<Begin color="XmlDoc/DocComment">///</Begin>
<RuleSet>
<Import ruleSet="XmlDoc/DocCommentSet"/>
<Import ruleSet="CommentMarkerSet"/>
</RuleSet>
</Span>
<Span color="Comment" ruleSet="CommentMarkerSet">
<Begin>//</Begin>
</Span>
<Span color="Comment" ruleSet="CommentMarkerSet" multiline="true">
<Begin>/\*</Begin>
<End>\*/</End>
</Span>
<Span color="String">
<Begin>"</Begin>
<End>"</End>
<RuleSet>
<!-- span for escape sequences -->
<Span begin="\\" end="."/>
</RuleSet>
</Span>
<Span color="Char">
<Begin>'</Begin>
<End>'</End>
<RuleSet>
<!-- span for escape sequences -->
<Span begin="\\" end="."/>
</RuleSet>
</Span>
<Span color="String" multiline="true">
<Begin color="String">@"</Begin>
<End>"</End>
<RuleSet>
<!-- span for escape sequences -->
<Span begin='""' end=""/>
</RuleSet>
</Span>
<!-- don't highlight "@int" as keyword -->
<Rule>
@[\w\d_]+
</Rule>
<Keywords color="ThisOrBaseReference">
<Word>this</Word>
<Word>base</Word>
</Keywords>
<Keywords color="TypeKeywords">
<Word>as</Word>
<Word>is</Word>
<Word>new</Word>
<Word>sizeof</Word>
<Word>typeof</Word>
<Word>stackalloc</Word>
</Keywords>
<Keywords color="TrueFalse">
<Word>true</Word>
<Word>false</Word>
</Keywords>
<Keywords color="Keywords">
<Word>else</Word>
<Word>if</Word>
<Word>switch</Word>
<Word>case</Word>
<Word>default</Word>
<Word>do</Word>
<Word>for</Word>
<Word>foreach</Word>
<Word>in</Word>
<Word>while</Word>
<Word>lock</Word>
<Word>fuck</Word>
</Keywords>
<Keywords color="GotoKeywords">
<Word>break</Word>
<Word>continue</Word>
<Word>goto</Word>
<Word>return</Word>
</Keywords>
<Keywords color="ContextKeywords">
<Word>yield</Word>
<Word>partial</Word>
<Word>global</Word>
<Word>where</Word>
<Word>select</Word>
<Word>group</Word>
<Word>by</Word>
<Word>into</Word>
<Word>from</Word>
<Word>ascending</Word>
<Word>descending</Word>
<Word>orderby</Word>
<Word>let</Word>
<Word>join</Word>
<Word>on</Word>
<Word>equals</Word>
<Word>var</Word>
<Word>dynamic</Word>
</Keywords>
<Keywords color="ExceptionKeywords">
<Word>try</Word>
<Word>throw</Word>
<Word>catch</Word>
<Word>finally</Word>
</Keywords>
<Keywords color="CheckedKeyword">
<Word>checked</Word>
<Word>unchecked</Word>
</Keywords>
<Keywords color="UnsafeKeywords">
<Word>fixed</Word>
<Word>unsafe</Word>
</Keywords>
<Keywords color="ValueTypes">
<Word>bool</Word>
<Word>byte</Word>
<Word>char</Word>
<Word>decimal</Word>
<Word>double</Word>
<Word>enum</Word>
<Word>float</Word>
<Word>int</Word>
<Word>long</Word>
<Word>sbyte</Word>
<Word>short</Word>
<Word>struct</Word>
<Word>uint</Word>
<Word>ushort</Word>
<Word>ulong</Word>
</Keywords>
<Keywords color="ReferenceTypes">
<Word>class</Word>
<Word>interface</Word>
<Word>delegate</Word>
<Word>object</Word>
<Word>string</Word>
<Word>void</Word>
</Keywords>
<Keywords color="OperatorKeywords">
<Word>explicit</Word>
<Word>implicit</Word>
<Word>operator</Word>
</Keywords>
<Keywords color="ParameterModifiers">
<Word>params</Word>
<Word>ref</Word>
<Word>out</Word>
</Keywords>
<Keywords color="Modifiers">
<Word>abstract</Word>
<Word>const</Word>
<Word>event</Word>
<Word>extern</Word>
<Word>override</Word>
<Word>readonly</Word>
<Word>sealed</Word>
<Word>static</Word>
<Word>virtual</Word>
<Word>volatile</Word>
</Keywords>
<Keywords color="Visibility">
<Word>public</Word>
<Word>protected</Word>
<Word>private</Word>
<Word>internal</Word>
</Keywords>
<Keywords color="NamespaceKeywords">
<Word>namespace</Word>
<Word>using</Word>
</Keywords>
<Keywords color="GetSetAddRemove">
<Word>get</Word>
<Word>set</Word>
<Word>add</Word>
<Word>remove</Word>
</Keywords>
<Keywords color="NullOrValueKeywords">
<Word>null</Word>
<Word>value</Word>
</Keywords>
<!-- Mark previous rule-->
<Rule color="MethodCall">
\b
[\d\w_]+ # an identifier
(?=\s*\() # followed by (
</Rule>
<!-- Digits -->
<Rule color="NumberLiteral">
\b0[xX][0-9a-fA-F]+ # hex number
|
( \b\d+(\.[0-9]+)? #number with optional floating point
| \.[0-9]+ #or just starting with floating point
)
([eE][+-]?[0-9]+)? # optional exponent
</Rule>
<Rule color="Punctuation">
[?,.;()\[\]{}+\-/%*<>^+~!|&]+
</Rule>
</RuleSet>
</SyntaxDefinition>
<SyntaxDefinition name="C#" extensions=".cs" xmlns="http://icsharpcode.net/sharpdevelop/syntaxdefinition/2008">
其中SyntaxDefinition 这个节点中 name是语言的类型，有C#，Java，Html，ASP/XHTML，JavaScript，CSS等等一些类语言，extension的文件的后缀名，比如C#的文件是以.cs，Java是.java，JavaScript是.js等等，xmlns是命名空间
<Color name="Comment" foreground="Green" exampleText="// comment" />
<Color name="String" foreground="Blue" exampleText="string text = "Hello, World!""/>
<Color name="Char" foreground="Magenta" exampleText="char linefeed = '\n';"/>
<Color name="Keywords" fontWeight="bold" foreground="Red" exampleText="if (a) {} else {}"/>
..............
以上的那些xml节点是C#里的各种类型的关键字，
比如：<Color name="Comment" foreground="Green" exampleText="// comment" />这个是 C#中的 注释，然后所对应的 前景色foreground="Green"为绿色，
<Color name="Keywords" fontWeight="bold" foreground="Red" exampleText="if (a) {} else {}"/> C#中的关键字，字体是bold，前景色为红色，
还有其他类型 ：字符，字符串，预处理器，标点符号，方法名，数字，复合关键字，操作，命名空间，修饰符，关键字类型，布尔型常熟，关键字，循环关键字，异常处理，控制流 等等。。
这对应的节点配置了这些类型的颜色，字体类型。
<Span color="Char">
<Begin>'</Begin>
<End>'</End>
<RuleSet>
<!-- span for escape sequences -->
<Span begin="\\" end="."/>
</RuleSet>
</Span>
在这里定义了各个类型的具体实现部分，比如C# 中Char 是以一对单引号 引起来的， 比如 char a = ’A‘;
<Keywords color="TrueFalse">
<Word>true</Word>
<Word>false</Word>
</Keywords>
<Keywords color="Keywords">
<Word>else</Word>
<Word>if</Word>
<Word>switch</Word>
<Word>case</Word>
<Word>default</Word>
<Word>do</Word>
<Word>for</Word>
<Word>foreach</Word>
<Word>in</Word>
<Word>while</Word>
<Word>lock</Word>
<Word>fuck</Word>
</Keywords>
<Keywords color="GotoKeywords">
<Word>break</Word>
<Word>continue</Word>
<Word>goto</Word>
<Word>return</Word>
</Keywords>
这些关键字对应最上面的节点，对应节点里配置好的字体或者颜色，在这些配置文件把颜色修改后重新编译后就可以得到想要的颜色。
在后台修改这些配置文件：
<?xml version="1.0"?> <SyntaxDefinition name="C++" extensions=".c;.h;.cc;.cpp;.hpp"> <FontStyle>微软雅黑</FontStyle> <FontSize>17</FontSize> <BackGround>#FFFFFFFF</BackGround> <Color name="Comment" foreground="#00FFFFFF" fontWeight="bold" displayName="注释" /> <Color name="Character" foreground="#FFFF00FF" displayName="字符" fontWeight="" /> <Color name="String" foreground="#FFFF00FF" displayName="字符串" fontWeight="" /> <Color name="Preprocessor" foreground="#FF0000FF" displayName="预处理器" fontWeight="" /> <Color name="Punctuation" foreground="#FF006400" displayName="标点符号" fontWeight="" /> <Color name="MethodName" foreground="#FF191970" displayName="方法名" fontWeight="" /> <Color name="Digits" foreground="#FF00008B" displayName="数字" fontWeight="" /> <Color name="CompoundKeywords" foreground="#FF000000" displayName="复合关键字" fontWeight="" /> <Color name="This" foreground="#FF000000" displayName="This" fontWeight="normal" /> <Color name="Operators" foreground="#FF008B8B" displayName="操作" fontWeight="" /> <Color name="Namespace" foreground="#FF008000" displayName="命名空间" fontWeight="" /> <Color name="Friend" foreground="#FFA52A2A" displayName="Friend" fontWeight="" /> <Color name="Modifiers" foreground="#FF0000FF" displayName="修饰" fontWeight="" /> <Color name="TypeKeywords" foreground="#FFFF0000" displayName="关键字类型" fontWeight="" /> <Color name="BooleanConstants" foreground="#FF000000" displayName="布尔型常数" fontWeight="" /> <Color name="Keywords" foreground="#00FFFFFF" displayName="关键字" fontWeight="normal" /> <Color name="LoopKeywords" foreground="#FF0000FF" displayName="循环关键字" fontWeight="" /> <Color name="ExceptionHandling" foreground="#FF008080" displayName="异常处理" fontWeight="" /> <Color name="ControlFlow" foreground="#FF0000FF" displayName="控制流" fontWeight="" /> </SyntaxDefinition>
自己新建一个配置文件，里面各个节点写上配置的颜色以及字体
在程序加载时加载这个配置文件，存放到一个List中去，以便在后面修改这里的值
然后在打开一个文本编辑器的时候，给文本编辑器对象的属性赋值：
在AvalonEditViewContent这个类中的public AvalonEditViewContent(OpenedFile file, Encoding fixedEncodingForLoading = null)
这个方法是打开 根据传入的文件的路径 用文本编辑器打开这个文件，并显示出来：
CodeEditor codeEditor = new CodeEditor();
codeEditor.PrimaryTextEditor.FontSize = DBconfigService.fontSize;
System.Windows.Media.FontFamily fam = new System.Windows.Media.FontFamily(DBconfigService.fontStyle);
codeEditor.PrimaryTextEditor.FontFamily = fam;
codeEditor.ActiveTextEditor.FontFamily = fam;
Color BGColor = DBconfigService.BGColor;
SolidColorBrush br = new System.Windows.Media.SolidColorBrush(BGColor);
codeEditor.PrimaryTextEditor.Background = br;
System.Collections.Generic.IEnumerable<HighlightingColor> list =
codeEditor.PrimaryTextEditor.SyntaxHighlighting.NamedHighlightingColors;
System.Collections.Generic.List<HighlightingColor> listColor = list.ToList();
foreach (var item in listColor)
{
//item.FontSize = DBconfigService.fontSize;
foreach (var model in DBconfigService.ListColorFant)
{
if (model.name == item.Name)
{
//前景色
Color color = model.foreground;
HB b = new HB(new System.Windows.Media.SolidColorBrush(color));
item.Foreground = b;
//加粗
FontWeightConverter fec = new FontWeightConverter();
if (string.IsNullOrEmpty(model.fontWeight))
{
model.fontWeight = "normal";
}
object obj = fec.ConvertFrom(model.fontWeight);
FontWeight fontweight = (FontWeight)obj;
item.FontWeight = fontweight;
}
}
};
public class HB : HighlightingBrush
{
System.Windows.Media.SolidColorBrush brush;
public HB(System.Windows.Media.SolidColorBrush brush)
{
brush.Freeze();
this.brush = brush;
}
public override System.Windows.Media.Brush GetBrush(DhcEc.AvalonEdit.Rendering.ITextRunConstructionContext context)
{
return brush;
}
public override string ToString()
{
return brush.ToString();
}
}
在这里可以把配置文件中的值 全部更新到文本编辑器对象的各个属性去，这样就大功告成了！