diff --git a/src/QodeEdit.h b/src/QodeEdit.h
index cd5a6bb..e109341 100644
--- a/src/QodeEdit.h
+++ b/src/QodeEdit.h
@@ -12,19 +12,19 @@ class QodeEdit : public QObject
     
 public:
     enum Ruler {
-        NoRuler = 0x0,
-        LineRuler = 0x1,
-        BackgroundRuler = 0x2
+        NoRuler = -1,
+        LineRuler,
+        BackgroundRuler
     };
     
     // the order is important as it defined the presentation order of the margins
     enum Margin {
         InvalidMargin = -1,
-        BookmarkMargin = 0, // done
-        NumberMargin = 1, // done
-        FoldMargin = 2,
-        RevisionMargin = 3, // done
-        SpaceMargin = 4, // done
+        BookmarkMargin,
+        NumberMargin,
+        FoldMargin,
+        RevisionMargin,
+        SpaceMargin
     };
     
     enum Rule {
@@ -50,6 +50,7 @@ class QodeEdit : public QObject
     };
     
     enum Style {
+        InvalidStyle = -1,
         NormalStyle,
         KeywordStyle,
         DataTypeStyle,
diff --git a/src/syntax/SyntaxDocument.cpp b/src/syntax/SyntaxDocument.cpp
index a1b8015..6f2e06b 100644
--- a/src/syntax/SyntaxDocument.cpp
+++ b/src/syntax/SyntaxDocument.cpp
@@ -7,32 +7,10 @@
 #include <QFileInfo>
 #include <QDebug>
 
-QHash<QString, QodeEdit::Style> initializedStyleMapping()
-{
-    QHash<QString, QodeEdit::Style> hash;
-    hash[ "alert" ] = QodeEdit::AlertStyle;
-    hash[ "base-n integer" ] = QodeEdit::BaseNStyle;
-    hash[ "character" ] = QodeEdit::CharStyle;
-    hash[ "string char" ] = QodeEdit::CharStyle;
-    hash[ "comment" ] = QodeEdit::CommentStyle;
-    hash[ "data type" ] = QodeEdit::DataTypeStyle;
-    hash[ "decimal/value" ] = QodeEdit::DecValStyle;
-    hash[ "error" ] = QodeEdit::ErrorStyle;
-    hash[ "floating point" ] = QodeEdit::FloatStyle;
-    hash[ "function" ] = QodeEdit::FunctionStyle;
-    hash[ "keyword" ] = QodeEdit::KeywordStyle;
-    hash[ "normal" ] = QodeEdit::NormalStyle;
-    hash[ "others" ] = QodeEdit::OthersStyle;
-    hash[ "region marker" ] = QodeEdit::RegionMarkerStyle;
-    hash[ "string" ] = QodeEdit::StringStyle;
-    return hash;
-}
-
 class Syntax::DocumentData : public QSharedData
 {
 public:
     static QString globalDefaultDeliminator;
-    static QHash<QString, QodeEdit::Style> globalStyleMapping;
     
     QString name;
     QString localizedName;
@@ -95,7 +73,6 @@ class Syntax::DocumentData : public QSharedData
 };
 
 QString Syntax::DocumentData::globalDefaultDeliminator( " \t.():!+,-<=>%&*/;?[]^{|}~\\" );
-QHash<QString, QodeEdit::Style> Syntax::DocumentData::globalStyleMapping( initializedStyleMapping() );
 
 
 Syntax::Document::Document()
diff --git a/src/syntax/SyntaxDocumentBuilder.cpp b/src/syntax/SyntaxDocumentBuilder.cpp
index 88a7554..fbf49a5 100644
--- a/src/syntax/SyntaxDocumentBuilder.cpp
+++ b/src/syntax/SyntaxDocumentBuilder.cpp
@@ -27,7 +27,7 @@ class Syntax::DocumentBuilderData : public QSharedData
         // import external initial context rules
         if ( srcContextName.startsWith( "##" ) ) {
             srcSyntaxName = srcContextName.mid( 2 );
-            srcContextName.clear(); // filled up later with document initialContext
+            srcContextName.clear(); // filled up later with document defaultContext
         }
         // import external contex rules
         else if ( srcContextName.contains( "##" ) ) {
@@ -46,7 +46,7 @@ class Syntax::DocumentBuilderData : public QSharedData
         
         // get source context name if needed
         if ( rule.context().startsWith( "##" ) ) {
-            srcContextName = srcDocument.highlighting().initialContext();
+            srcContextName = srcDocument.highlighting().defaultContext();
         }
         
         // get source context
diff --git a/src/syntax/SyntaxHighlighting.cpp b/src/syntax/SyntaxHighlighting.cpp
index ffebc61..ac7ae86 100644
--- a/src/syntax/SyntaxHighlighting.cpp
+++ b/src/syntax/SyntaxHighlighting.cpp
@@ -3,8 +3,8 @@
 class Syntax::HighlightingData : public QSharedData
 {
 public:
-    QString initialContext;
-    Syntax::Highlighting::Hash lists;
+    QString defaultContext;
+    Syntax::HashList lists;
     Syntax::Context::Hash contexts;
     Syntax::ItemData::Hash itemDatas;
     
@@ -15,7 +15,7 @@ class Syntax::HighlightingData : public QSharedData
     
     HighlightingData( const Syntax::HighlightingData& other )
         : QSharedData( other ),
-            SYNTAX_OTHER_INIT( initialContext ),
+            SYNTAX_OTHER_INIT( defaultContext ),
             SYNTAX_OTHER_INIT( lists ),
             SYNTAX_OTHER_INIT( contexts ),
             SYNTAX_OTHER_INIT( itemDatas )
@@ -40,8 +40,8 @@ Syntax::Highlighting::~Highlighting()
 {
 }
 
-SYNTAX_IMPL_MEMBER( QString, initialContext, Highlighting )
-SYNTAX_IMPL_MEMBER( Syntax::Highlighting::Hash, lists, Highlighting )
+SYNTAX_IMPL_MEMBER( QString, defaultContext, Highlighting )
+SYNTAX_IMPL_MEMBER( Syntax::HashList, lists, Highlighting )
 SYNTAX_IMPL_MEMBER( Syntax::Context::Hash, contexts, Highlighting )
 SYNTAX_IMPL_MEMBER( Syntax::ItemData::Hash, itemDatas, Highlighting )
 SYNTAX_IMPL_OPERATORS( Highlighting )
diff --git a/src/syntax/SyntaxHighlighting.h b/src/syntax/SyntaxHighlighting.h
index 9b145d7..214450a 100644
--- a/src/syntax/SyntaxHighlighting.h
+++ b/src/syntax/SyntaxHighlighting.h
@@ -18,10 +18,8 @@ class Highlighting
     QExplicitlySharedDataPointer<Syntax::HighlightingData> d;
     
 public:
-    typedef QHash<QString, Syntax::List> Hash; // FIXME bad name better set Syntax::HashList typedef
-    
-    SYNTAX_DECL_MEMBER( QString, initialContext );
-    SYNTAX_DECL_MEMBER( Syntax::Highlighting::Hash, lists );
+    SYNTAX_DECL_MEMBER( QString, defaultContext );
+    SYNTAX_DECL_MEMBER( Syntax::HashList, lists );
     SYNTAX_DECL_MEMBER( Syntax::Context::Hash, contexts );
     SYNTAX_DECL_MEMBER( Syntax::ItemData::Hash, itemDatas );
     
diff --git a/src/syntax/SyntaxList.h b/src/syntax/SyntaxList.h
index 6c75bb4..d1ac0ce 100644
--- a/src/syntax/SyntaxList.h
+++ b/src/syntax/SyntaxList.h
@@ -2,11 +2,13 @@
 #define SYNTAXLIST_H
 
 #include <QSet>
+#include <QHash>
 #include <QString>
 
 namespace Syntax {
 
 typedef QSet<QString> List;
+typedef QHash<QString, Syntax::List> HashList;
 
 }; // Syntax
 
diff --git a/src/syntax/SyntaxParser.cpp b/src/syntax/SyntaxParser.cpp
index 52ea6b0..dbccf84 100644
--- a/src/syntax/SyntaxParser.cpp
+++ b/src/syntax/SyntaxParser.cpp
@@ -6,6 +6,29 @@
 #include <QVariant>
 #include <QDebug>
 
+QHash<QString, QodeEdit::Style> initializedStyleMapping()
+{
+    QHash<QString, QodeEdit::Style> hash;
+    hash[ "alert" ] = QodeEdit::AlertStyle;
+    hash[ "base-n integer" ] = QodeEdit::BaseNStyle;
+    hash[ "character" ] = QodeEdit::CharStyle;
+    hash[ "string char" ] = QodeEdit::CharStyle;
+    hash[ "comment" ] = QodeEdit::CommentStyle;
+    hash[ "data type" ] = QodeEdit::DataTypeStyle;
+    hash[ "decimal/value" ] = QodeEdit::DecValStyle;
+    hash[ "error" ] = QodeEdit::ErrorStyle;
+    hash[ "floating point" ] = QodeEdit::FloatStyle;
+    hash[ "function" ] = QodeEdit::FunctionStyle;
+    hash[ "keyword" ] = QodeEdit::KeywordStyle;
+    hash[ "normal" ] = QodeEdit::NormalStyle;
+    hash[ "others" ] = QodeEdit::OthersStyle;
+    hash[ "region marker" ] = QodeEdit::RegionMarkerStyle;
+    hash[ "string" ] = QodeEdit::StringStyle;
+    return hash;
+}
+
+static QHash<QString, QodeEdit::Style> globalStyleMapping( initializedStyleMapping() );
+
 // ParserPrivate
 
 class Syntax::ParserPrivate {
@@ -25,33 +48,33 @@ class Syntax::ParserPrivate {
     
     ParserPrivate( Syntax::Parser* _parser )
         : ruleNames( Syntax::List()
-            << "anychar" // AnyChar
-            
-            << "detect2chars" // Detect2Chars
-            << "detectchar" // DetectChar
-            << "detectidentifier" // DetectIdentifier
-            << "detectspaces" // DetectSpaces
-            
-            << "float" // Float
-            
-            << "hlcchar" // HlCChar
-            << "hlchex" // HlCHex
-            << "hlcoct" // HlCOct
-            << "hlcstringchar" // HlCStringChar
-            
-            << "includerules" // IncludeRules
-            << "int" // Int
-            
-            << "keyword" // Keyword
-            
-            << "linecontinue" // LineContinue
-            
-            << "rangedetect" // RangeDetect
-            << "regexpr" // RegExpr
-            
-            << "stringdetect" // StringDetect
-            
-            << "worddetect" // WordDetect
+                << "anychar" // AnyChar
+                
+                << "detect2chars" // Detect2Chars
+                << "detectchar" // DetectChar
+                << "detectidentifier" // DetectIdentifier
+                << "detectspaces" // DetectSpaces
+                
+                << "float" // Float
+                
+                << "hlcchar" // HlCChar
+                << "hlchex" // HlCHex
+                << "hlcoct" // HlCOct
+                << "hlcstringchar" // HlCStringChar
+                
+                << "includerules" // IncludeRules
+                << "int" // Int
+                
+                << "keyword" // Keyword
+                
+                << "linecontinue" // LineContinue
+                
+                << "rangedetect" // RangeDetect
+                << "regexpr" // RegExpr
+                
+                << "stringdetect" // StringDetect
+                
+                << "worddetect" // WordDetect
             ),
             document( 0 ),
             parser( _parser )
@@ -288,8 +311,8 @@ bool Syntax::Parser::startElement( const QString& namespaceURI, const QString& l
         
         d->document->highlighting().contexts()[ context.name() ] = context;
         
-        if ( d->document->highlighting().initialContext().isEmpty() ) {
-            d->document->highlighting().initialContext() = context.name();
+        if ( d->document->highlighting().defaultContext().isEmpty() ) {
+            d->document->highlighting().defaultContext() = context.name();
         }
         
         Q_ASSERT( !context.name().isEmpty() );
@@ -385,10 +408,15 @@ bool Syntax::Parser::startElement( const QString& namespaceURI, const QString& l
             const QString name = atts.qName( i );
             
             if ( QodeEdit::stringEquals( name, "name" ) ) {
-                itemData.name() = atts.value( i );
+                itemData.name() = atts.value( i ).toLower();
             }
             else if ( QodeEdit::stringEquals( name, "defStyleNum" ) ) {
                 itemData.defStyleNum() = atts.value( i );
+                
+                if ( QodeEdit::stringToStyle( itemData.defStyleNum() ) == -1 ) {
+                    qWarning( "%s: Fixed invalid style to dsNormal in %s", Q_FUNC_INFO, qPrintable( d->document->name() ) );
+                    itemData.defStyleNum() = "dsNormal";
+                }
             }
             else if ( QodeEdit::stringEquals( name, "spellChecking" ) ) {
                 itemData.spellChecking() = QVariant( atts.value( i ) ).toBool();