Adding python definition

ICSharpCode.AvalonEdit/Folding/FoldingManager.cs

@@ -279,12 +279,12 @@ namespace ICSharpCode.AvalonEdit.Folding
 					// auto-close #regions only when opening the document
 					if (isFirstUpdate) {
 						section.IsFolded = newFolding.DefaultClosed;
-						isFirstUpdate = false;
 					}
 					section.Tag = newFolding;
 				}
 				section.Title = newFolding.Name;
 			}
+			isFirstUpdate = false;
 			// remove all outstanding old foldings:
 			while (oldFoldingIndex < oldFoldings.Length) {
 				FoldingSection oldSection = oldFoldings[oldFoldingIndex++];

ICSharpCode.AvalonEdit/Highlighting/Resources/Python-Mode.xshd

@@ -0,0 +1,104 @@
+<?xml version="1.0"?>
+<SyntaxDefinition name="Python" extensions=".py;.pyw" xmlns="http://icsharpcode.net/sharpdevelop/syntaxdefinition/2008">
+	<Color name="Comment" foreground="Green" exampleText="# comment" />
+	<Color name="String" foreground="Gray" exampleText="name = 'abc'"/>
+	<Color name="MethodCall" foreground="Purple" exampleText="def Hello()"/>
+	<Color name="NumberLiteral" foreground="DarkBlue" exampleText="3.1415f"/>
+	<Color name="Keywords" fontWeight="bold" foreground="Blue" exampleText="if"/>
+
+	<Property name="DocCommentMarker" value="///" />
+
+	<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>
+
+	<RuleSet>
+		<Span color="Comment" ruleSet="CommentMarkerSet">
+			<Begin>\#</Begin>
+		</Span>
+
+		<Span color="String" multiline="true">
+			<Begin>'''</Begin>
+			<End>'''</End>
+		</Span>
+		<Span color="String" multiline="true">
+			<Begin>"""</Begin>
+			<End>"""</End>
+		</Span>
+
+		<Span color="String">
+			<Begin>"</Begin>
+			<End>"</End>
+			<RuleSet>
+				<Span begin="\\" end="."/>
+			</RuleSet>
+		</Span>
+		<Span color="String">
+			<Begin>'</Begin>
+			<End>'</End>
+			<RuleSet>
+				<Span begin="\\" end="."/>
+			</RuleSet>
+		</Span>
+
+		<Keywords color="Keywords">
+			<Word>and</Word>
+			<Word>as</Word>
+			<Word>assert</Word>
+			<Word>break</Word>
+			<Word>class</Word>
+			<Word>continue</Word>
+			<Word>def</Word>
+			<Word>del</Word>
+			<Word>elif</Word>
+			<Word>else</Word>
+			<Word>except</Word>
+			<Word>exec</Word>
+			<Word>False</Word>
+			<Word>finally</Word>
+			<Word>for</Word>
+			<Word>from</Word>
+			<Word>global</Word>
+			<Word>if</Word>
+			<Word>import</Word>
+			<Word>in</Word>
+			<Word>is</Word>
+			<Word>lambda</Word>
+			<Word>None</Word>
+			<Word>nonlocal</Word>
+			<Word>not</Word>
+			<Word>or</Word>
+			<Word>pass</Word>
+			<Word>print</Word>
+			<Word>raise</Word>
+			<Word>return</Word>
+			<Word>True</Word>
+			<Word>try</Word>
+			<Word>while</Word>
+			<Word>with</Word>
+			<Word>yield</Word>
+			<Word>async</Word>
+			<Word>await</Word>
+		</Keywords>
+
+		<Rule color="MethodCall">
+			\b
+			[\d\w_]+  # an identifier
+			(?=\s*\() # followed by (
+		</Rule>
+		<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>
+	</RuleSet>
+</SyntaxDefinition>

ICSharpCode.AvalonEdit/Highlighting/Resources/Resources.cs

@@ -50,6 +50,7 @@ namespace ICSharpCode.AvalonEdit.Highlighting
 			hlm.RegisterHighlighting("Patch", new[] { ".patch", ".diff" }, "Patch-Mode.xshd");
 			hlm.RegisterHighlighting("PowerShell", new[] { ".ps1", ".psm1", ".psd1" }, "PowerShell.xshd");
 			hlm.RegisterHighlighting("PHP", new[] { ".php" }, "PHP-Mode.xshd");
+			hlm.RegisterHighlighting("Python", new[] { ".py", ".pyw" }, "Python-Mode.xshd");
 			hlm.RegisterHighlighting("TeX", new[] { ".tex" }, "Tex-Mode.xshd");
 			hlm.RegisterHighlighting("VB", new[] { ".vb" }, "VB-Mode.xshd");
 			hlm.RegisterHighlighting("XML", (".xml;.xsl;.xslt;.xsd;.manifest;.config;.addin;" +

ICSharpCode.AvalonEdit/ICSharpCode.AvalonEdit.csproj

@@ -418,6 +418,7 @@
     <EmbeddedResource Include="Highlighting\Resources\JavaScript-Mode.xshd" />
     <EmbeddedResource Include="Highlighting\Resources\Patch-Mode.xshd" />
     <EmbeddedResource Include="Highlighting\Resources\PHP-Mode.xshd" />
+    <EmbeddedResource Include="Highlighting\Resources\Python-Mode.xshd" />
     <EmbeddedResource Include="Highlighting\Resources\Tex-Mode.xshd" />
     <EmbeddedResource Include="Highlighting\Resources\VB-Mode.xshd" />
     <EmbeddedResource Include="Highlighting\Resources\XML-Mode.xshd" />