Add markdown (.md) highlight support

Project/ICSharpCode.TextEditor.csproj

@@ -302,6 +302,7 @@
     <EmbeddedResource Include="Resources\XC.xshd" />
     <EmbeddedResource Include="Resources\XML.xshd" />
     <EmbeddedResource Include="Resources\Xtend.xshd" />
+    <EmbeddedResource Include="Resources\Markdown.xshd" />
   </ItemGroup>
   <ItemGroup>
     <BootstrapperPackage Include="Microsoft.Net.Client.3.5">

Project/Resources/Markdown.xshd

@@ -0,0 +1,117 @@
+<?xml version="1.0" encoding="utf-8"?>
+<SyntaxDefinition name="Markdown" extensions=".md">
+    <Environment>
+        <Default color="Black" bgcolor="#FFFFFF"/>
+        <Selection color="Black" bgcolor="#C3C3FF"/>
+        <LineNumbers color="Gray" bgcolor="#FFFFFF"/>
+        <CaretMarker color="#F0F0F1"/>
+        <VRuler color="#E0E0E5"/>
+
+        <FoldLine color="#A0A0A0" bgcolor="#FFFFFF"/>
+        <FoldMarker color="Black" bgcolor="#FFFFFF"/>
+        <SelectedFoldLine color="Black" bgcolor="#FFFFFF"/>
+
+        <EOLMarkers color="#CACAD2"/>
+        <SpaceMarkers color="#B6B6C0"/>
+        <TabMarkers color="#B6B6C0"/>
+        <InvalidLines color="#B6B6C0"/>
+    </Environment>
+
+    <RuleSets>
+
+        <RuleSet name="HtmlTagSet" ignorecase="false">
+            <Delimiters>/=</Delimiters>
+
+            <Span name="String" stopateol="true" color="#0451A5" bold="false" italic="false">
+                <Begin>"</Begin>
+                <End>"</End>
+            </Span>
+
+            <Span name="Char" stopateol="true" color="Blue" bold="false" italic="false">
+                <Begin>'</Begin>
+                <End>'</End>
+            </Span>
+
+            <MarkPrevious color="Red" bold="false" italic="false">=</MarkPrevious>
+
+            <KeyWords name="Slash" color="DarkMagenta" bold="false" italic="false">
+                <Key word="/"/>
+            </KeyWords>
+
+            <KeyWords name="Assignment" color="Black" bold="false" italic="false">
+                <Key word="="/>
+            </KeyWords>
+        </RuleSet>
+
+        <RuleSet ignorecase="true">
+            <Span name="Link" stopateol="true" color="Maroon" italic="false">
+                <Begin>[</Begin>
+                <End>]</End>
+            </Span>
+
+            <Span name="LinkUrl" stopateol="true" color="Purple" italic="false">
+                <Begin>(http</Begin>
+                <End>)</End>
+            </Span>
+
+            <Span name="Header4" stopateol="true" bold="true" color="LightBlue">
+                <Begin startofline="true">####</Begin>
+            </Span>
+            <Span name="Header3" stopateol="true" bold="true" color="DodgerBlue">
+                <Begin startofline="true">###</Begin>
+            </Span>
+
+            <Span name="Header2" stopateol="true" bold="true" color="Blue">
+                <Begin startofline="true">##</Begin>
+            </Span>
+
+            <Span name="Header1" stopateol="true" bold="true" color="DarkBlue">
+                <Begin startofline="true">#</Begin>
+            </Span>
+
+            <Span name="Bold1" color="Black" bold="true" stopateol="true">
+                <Begin>**</Begin>
+                <End>**</End>
+            </Span>
+
+            <Span name="Bold2" color="Black" bold="true" stopateol="true">
+                <Begin>__</Begin>
+                <End>__</End>
+            </Span>
+
+            <Span name="Italic1" color="Black" italic="true" stopateol="true">
+                <Begin>_</Begin>
+                <End>_</End>
+            </Span>
+
+            <!-- Disabled because conflicts with unordered list items -->
+            <!-- <Span name="Italic2" color="Black" italic="true" stopateol="true">
+                <Begin>*</Begin>
+                <End>*</End>
+            </Span> -->
+
+            <Span name="Blockquote" stopateol="true" color="DimGray" bgcolor="GhostWhite" italic="true">
+                <Begin startofline="true">&gt;</Begin>
+            </Span>
+
+            <Span name="HtmlTag" rule="HtmlTagSet" stopateol="false" color="DarkMagenta" bold="false" italic="false">
+                <Begin>&lt;</Begin>
+                <End>&gt;</End>
+            </Span>
+
+            <Span name="MultiLineCode" color="Black" bgcolor="LightGray">
+                <Begin>```</Begin>
+                <End>```</End>
+            </Span>
+
+            <Span name="CodeInline" color="Black" bgcolor="LightGray">
+                <Begin>`</Begin>
+                <End>`</End>
+            </Span>
+
+            <KeyWords name="Keywords1" color="DodgerBlue" bold="true">
+                <Key word="*"/>
+            </KeyWords>
+        </RuleSet>
+    </RuleSets>
+</SyntaxDefinition>

Project/Resources/SyntaxModes.xml

@@ -194,6 +194,10 @@
         name="Lua"
         extensions=".lua" />
 
+  <Mode file="Markdown.xshd"
+        name="Markdown"
+        extensions=".md" />
+
   <Mode file="Nemerle.xshd"
         name="Nemerle"
         extensions=".n" />

Sample.md

@@ -0,0 +1,45 @@
+# Title1
+
+## Title2
+
+### Title3
+
+#### Title4
+
+This *is italic*.
+This _is italic_.
+This **is bold**.
+This __is bold__.
+
+> Blockquote
+
+Example of `code inlined`.
+
+```
+some
+multiline
+code
+```
+
+
+    some other code
+
+Lists:
+
+ 1. of
+ 2. ordered
+ 3. items
+
+
+ * of
+ * unordered
+ * items
+
+Links:
+
+[Web](https://github.com/gitextensions/gitextensions)
+[relative](README.md)
+
+Some html:
+
+  <a href="https://github.com/gitextensions/gitextensions/contributors"><img src="https://opencollective.com/gitextensions/contributors.svg?width=890&button=false" /></a>