compact namespace decl

used
   git grep -lw namespace
    | xargs perl -i -p0e 's/(\w+)\s*.\{.\s*namespace\s*(\w+)/\1::\2/smg;'
 to do the initial replace, then compiled and fixed.

Change-Id: If69904d75940c851aeffab0e78c4ba02cc968d44
Reviewed-on: https://gerrit.libreoffice.org/c/core/+/98526
Tested-by: Jenkins
Reviewed-by: Noel Grandin <noel.grandin@collabora.co.uk>

36 files changed, 75 insertions, 253 deletions

diff --git a/forms/source/xforms/pathexpression.hxx b/forms/source/xforms/pathexpression.hxx
index 7f01c673ce72..23a35a033d27 100644
--- a/forms/source/xforms/pathexpression.hxx
+++ b/forms/source/xforms/pathexpression.hxx
@@ -25,13 +25,10 @@
 #include <vector>
 
 // forward declaractions
-namespace com::sun::star
+namespace com::sun::star::xml::dom
 {
-    namespace xml::dom
-    {
-        class XNodeList;
-        namespace events { class XEventListener; }
-    }
+    class XNodeList;
+    namespace events { class XEventListener; }
 }
 
 
diff --git a/forms/source/xforms/xformsevent.hxx b/forms/source/xforms/xformsevent.hxx
index df4f5bcd20da..bfe7b2593026 100644
--- a/forms/source/xforms/xformsevent.hxx
+++ b/forms/source/xforms/xformsevent.hxx
@@ -25,10 +25,7 @@
 #include <com/sun/star/xforms/XFormsEvent.hpp>
 #include <com/sun/star/xml/dom/events/XEventTarget.hpp>
 
-namespace com {
-namespace sun {
-namespace star {
-namespace xforms {
+namespace com::sun::star::xforms {
 
 class XFormsEventConcrete : public cppu::WeakImplHelper< XFormsEvent > {
 
@@ -67,7 +64,7 @@ class XFormsEventConcrete : public cppu::WeakImplHelper< XFormsEvent > {
         bool m_cancelable;
 };
 
-} } } }
+}
 
 #endif
 
diff --git a/framework/source/inc/pattern/frame.hxx b/framework/source/inc/pattern/frame.hxx
index 9585af25665c..46b86f56f891 100644
--- a/framework/source/inc/pattern/frame.hxx
+++ b/framework/source/inc/pattern/frame.hxx
@@ -27,9 +27,7 @@
 
 // namespaces
 
-namespace framework{
-    namespace pattern{
-        namespace frame{
+namespace framework::pattern::frame{
 
 /** @short  close (or dispose) the given resource.
 
@@ -77,9 +75,7 @@ inline bool closeIt(const css::uno::Reference< css::uno::XInterface >& xResource
     return true;
 }
 
-        } // namespace frame
-    } // namespace pattern
-} // namespace framework
+} // namespace framework::pattern::frame
 
 #endif // INCLUDED_FRAMEWORK_SOURCE_INC_PATTERN_FRAME_HXX
 
diff --git a/include/basic/vbahelper.hxx b/include/basic/vbahelper.hxx
index 10372abf392b..8d18b66b1d10 100644
--- a/include/basic/vbahelper.hxx
+++ b/include/basic/vbahelper.hxx
@@ -26,8 +26,7 @@
 namespace com::sun::star::frame { class XModel; }
 namespace com::sun::star::uno { template <typename > class Reference; }
 
-namespace basic {
-namespace vba {
+namespace basic::vba {
 
 /*  This header contains public helper functions for VBA used from this module
     and from other VBA implementation modules such as vbahelper.
@@ -88,8 +87,7 @@ BASIC_DLLPUBLIC void registerCurrentDirectory(
     const OUString& rPath );
 
 
-} // namespace vba
-} // namespace basic
+} // namespace basic::vba
 
 #endif
 
diff --git a/include/codemaker/unotype.hxx b/include/codemaker/unotype.hxx
index 90e17f5197f9..606321873242 100644
--- a/include/codemaker/unotype.hxx
+++ b/include/codemaker/unotype.hxx
@@ -26,9 +26,7 @@
 
 namespace rtl { class OString; }
 
-namespace codemaker {
-
-namespace UnoType {
+namespace codemaker::UnoType {
     /**
        An enumeration of all the sorts of relevant UNOIDL entities.
      */
@@ -82,7 +80,6 @@ namespace UnoType {
     rtl::OString decompose(
         rtl::OString const & type, sal_Int32 * rank = nullptr,
         std::vector< rtl::OString > * arguments = nullptr);
-}
 
 }
 
diff --git a/include/sfx2/filedlghelper.hxx b/include/sfx2/filedlghelper.hxx
index a0a436f12e9c..4700d9c8173d 100644
--- a/include/sfx2/filedlghelper.hxx
+++ b/include/sfx2/filedlghelper.hxx
@@ -33,25 +33,12 @@
 #include <memory>
 #include <vector>
 
-namespace com
+namespace com::sun::star::ui::dialogs
 {
-    namespace sun
-    {
-        namespace star
-        {
-            namespace ui
-            {
-                namespace dialogs
-                {
-                    class XFilePicker3;
-                    struct FilePickerEvent;
-                    struct DialogClosedEvent;
-                }
-            }
-        }
-    }
+    class XFilePicker3;
+    struct FilePickerEvent;
+    struct DialogClosedEvent;
 }
-
 namespace com::sun::star::awt { class XWindow; }
 namespace com::sun::star::uno { template <typename > class Reference; }
 namespace weld { class Window; }
diff --git a/include/sfx2/frame.hxx b/include/sfx2/frame.hxx
index 4eb2c6115e24..26af0c08f957 100644
--- a/include/sfx2/frame.hxx
+++ b/include/sfx2/frame.hxx
@@ -33,19 +33,10 @@
 #include <vector>
 
 
-namespace com
+namespace com::sun::star::frame
 {
-    namespace sun
-    {
-        namespace star
-        {
-            namespace frame
-            {
-                class XFrame;
-                class XController;
-            }
-        }
-    }
+    class XFrame;
+    class XController;
 }
 
 class SvBorder;
diff --git a/include/svl/cryptosign.hxx b/include/svl/cryptosign.hxx
index 61905360a1b9..4171807be89c 100644
--- a/include/svl/cryptosign.hxx
+++ b/include/svl/cryptosign.hxx
@@ -18,19 +18,11 @@
 
 #include <svl/svldllapi.h>
 
-namespace com {
-namespace sun {
-namespace star {
-namespace security {
-    class XCertificate; }
-}}}
-
+namespace com::sun::star::security { class XCertificate; }
 class SvStream;
 struct SignatureInformation;
 
-namespace svl {
-
-namespace crypto {
+namespace svl::crypto {
 
 /// Converts a hex-encoded string into a byte array.
 SVL_DLLPUBLIC std::vector<unsigned char> DecodeHexString(const OString& rHex);
@@ -85,7 +77,6 @@ private:
 };
 
 }
-}
 
 /* vim:set shiftwidth=4 softtabstop=4 expandtab: */
 
diff --git a/include/svl/sigstruct.hxx b/include/svl/sigstruct.hxx
index 38c1ee5ed142..04cb45cbe18f 100644
--- a/include/svl/sigstruct.hxx
+++ b/include/svl/sigstruct.hxx
@@ -71,9 +71,7 @@ struct SignatureReferenceInformation
 
 typedef ::std::vector< SignatureReferenceInformation > SignatureReferenceInformations;
 
-namespace svl
-{
-namespace crypto
+namespace svl::crypto
 {
 /// Specifies the algorithm used for signature generation and validation.
 enum class SignatureMethodAlgorithm
@@ -82,7 +80,7 @@ enum class SignatureMethodAlgorithm
     ECDSA
 };
 }
-}
+
 
 struct SignatureInformation
 {
diff --git a/include/svtools/imageresourceaccess.hxx b/include/svtools/imageresourceaccess.hxx
index 86dd259a24fb..566ca1ab8280 100644
--- a/include/svtools/imageresourceaccess.hxx
+++ b/include/svtools/imageresourceaccess.hxx
@@ -30,9 +30,7 @@ namespace com :: sun :: star :: uno { class XComponentContext; }
 
 class SvStream;
 
-namespace svt
-{
-namespace GraphicAccess
+namespace svt::GraphicAccess
 {
 
 /** Helpers for obtaining streams (which also can be used with the ImageProducer)
@@ -62,8 +60,7 @@ UNLESS_MERGELIBS(SVT_DLLPUBLIC) css::uno::Reference<css::io::XInputStream> getIm
             css::uno::Reference<css::uno::XComponentContext> const & rxContext,
             OUString const & rImageResourceURL);
 
-} // namespace GraphicAccess
-} // namespace svt
+} // namespace svt::GraphicAccess
 
 #endif // INCLUDED_SVTOOLS_IMAGERESOURCEACCESS_HXX
 
diff --git a/include/toolkit/helper/property.hxx b/include/toolkit/helper/property.hxx
index efc924a1ad2b..4a8fe2385317 100644
--- a/include/toolkit/helper/property.hxx
+++ b/include/toolkit/helper/property.hxx
@@ -25,13 +25,10 @@
 #include <sal/types.h>
 #include <rtl/ustring.hxx>
 
-namespace com {
-namespace sun {
-namespace star {
-namespace uno {
+namespace com::sun::star::uno {
     class Type;
     class Any;
-} } } }
+}
 
 
 #define BASEPROPERTY_NOTFOUND                        0
diff --git a/include/unotools/textsearch.hxx b/include/unotools/textsearch.hxx
index 04a25a1a3c46..45db38b2981f 100644
--- a/include/unotools/textsearch.hxx
+++ b/include/unotools/textsearch.hxx
@@ -31,16 +31,7 @@ class CharClass;
 
 namespace com::sun::star::lang { struct Locale; }
 namespace com::sun::star::util { class XTextSearch2; }
-
-namespace com {
-    namespace sun {
-        namespace star {
-            namespace util {
-                struct SearchResult;
-            }
-        }
-    }
-}
+namespace com::sun::star::util { struct SearchResult; }
 namespace i18nutil {
     struct SearchOptions;
     struct SearchOptions2;
diff --git a/include/unotools/ucbstreamhelper.hxx b/include/unotools/ucbstreamhelper.hxx
index fd7bd08cc5bf..69bae538b316 100644
--- a/include/unotools/ucbstreamhelper.hxx
+++ b/include/unotools/ucbstreamhelper.hxx
@@ -26,20 +26,11 @@
 #include <tools/stream.hxx>
 #include <memory>
 
-namespace com
-{
-    namespace sun
-    {
-        namespace star
-        {
-            namespace io
+namespace com::sun::star::io
             {
                 class XStream;
                 class XInputStream;
             }
-        }
-    }
-}
 
 namespace com::sun::star::awt { class XWindow; }
 
diff --git a/include/vbahelper/helperdecl.hxx b/include/vbahelper/helperdecl.hxx
index 7ee9f2793eb3..6ab78f1df0cf 100644
--- a/include/vbahelper/helperdecl.hxx
+++ b/include/vbahelper/helperdecl.hxx
@@ -22,8 +22,7 @@
 
 #include <comphelper/servicedecl.hxx>
 
-namespace comphelper {
-namespace service_decl {
+namespace comphelper::service_decl {
 template <typename ImplT_, typename WithArgsT = with_args<false> >
 struct vba_service_class_ : public serviceimpl_base< detail::OwnServiceImpl<ImplT_>, WithArgsT >
 {
@@ -43,8 +42,7 @@ struct vba_service_class_ : public serviceimpl_base< detail::OwnServiceImpl<Impl
     explicit vba_service_class_( PostProcessFuncT const& postProcessFunc ) : baseT( postProcessFunc ) {}
 };
 
-} // namespace service_decl
-} // namespace comphelper
+} // namespace comphelper::service_decl
 
 #endif
 
diff --git a/include/vbahelper/vbaaccesshelper.hxx b/include/vbahelper/vbaaccesshelper.hxx
index ce55e01e22ff..e00b25b241e2 100644
--- a/include/vbahelper/vbaaccesshelper.hxx
+++ b/include/vbahelper/vbaaccesshelper.hxx
@@ -36,10 +36,8 @@
 #include <sfx2/docfilt.hxx>
 #include <sfx2/docfile.hxx>
 
-namespace ooo
+namespace ooo::vba
 {
-    namespace vba
-    {
 
         inline css::uno::Reference< css::lang::XMultiServiceFactory > getVBAServiceFactory( SfxObjectShell const * pShell )
         {
@@ -74,7 +72,6 @@ namespace ooo
         // word seems to return an erroneous mime type :-/ "application/msword"  not consistent with the excel one
         inline bool isAlienWordDoc( SfxObjectShell const & rDocShell ) { return isAlienDoc( rDocShell, "application/msword" ); }
 
-    }
 }
 
 #endif
diff --git a/include/vbahelper/vbahelper.hxx b/include/vbahelper/vbahelper.hxx
index 6f05013cbdfc..7333dd375e1e 100644
--- a/include/vbahelper/vbahelper.hxx
+++ b/include/vbahelper/vbahelper.hxx
@@ -51,9 +51,7 @@ class SfxObjectShell;
 class SfxViewFrame;
 class SfxViewShell;
 
-namespace ooo
-{
-    namespace vba
+namespace ooo::vba
     {
         /// @throws css::lang::IllegalArgumentException
         template < class T >
@@ -273,8 +271,7 @@ public:
     static void runtimeexception( ErrCode err );
 };
 
-    } // vba
-} // ooo
+} // ooo::vba
 
 namespace ov = ooo::vba;
 
diff --git a/include/vbahelper/vbareturntypes.hxx b/include/vbahelper/vbareturntypes.hxx
index 7893a72cdbd8..96bb168abc01 100644
--- a/include/vbahelper/vbareturntypes.hxx
+++ b/include/vbahelper/vbareturntypes.hxx
@@ -27,9 +27,7 @@
 #include <sal/types.h>
 #include <vbahelper/vbahelper.hxx>
 
-namespace ooo
-{
-    namespace vba
+namespace ooo::vba
     {
         template< typename T1,  typename T2 >
         class DefaultReturnHelper : public ::cppu::WeakImplHelper< T2, css::script::XDefaultProperty >
@@ -49,8 +47,7 @@ namespace ooo
             ReturnInteger( sal_Int32 nValue ) : ReturnInteger_BASE( nValue ){}
         };
 
-    } // vba
-} // ooo
+} // ooo::vba
 
 #endif
 
diff --git a/registry/tools/fileurl.hxx b/registry/tools/fileurl.hxx
index 684ca8c3c460..b2a68502618c 100644
--- a/registry/tools/fileurl.hxx
+++ b/registry/tools/fileurl.hxx
@@ -22,15 +22,12 @@
 
 #include <rtl/ustring.hxx>
 
-namespace registry
-{
-namespace tools
+namespace registry::tools
 {
 
 OUString convertToFileUrl(char const * filename, sal_Int32 length);
 
-} // namespace tools
-} // namespace registry
+} // namespace registry::tools
 
 #endif /* INCLUDED_REGISTRY_TOOLS_FILEURL_HXX */
 
diff --git a/registry/tools/options.hxx b/registry/tools/options.hxx
index a0ae71b499d9..6813d21fc930 100644
--- a/registry/tools/options.hxx
+++ b/registry/tools/options.hxx
@@ -23,9 +23,7 @@
 #include <string>
 #include <vector>
 
-namespace registry
-{
-namespace tools
+namespace registry::tools
 {
 class Options
 {
@@ -52,8 +50,7 @@ protected:
     virtual void printUsage_Impl() const = 0;
 };
 
-} // namespace tools
-} // namespace registry
+} // namespace registry::tools
 
 #endif /* INCLUDED_REGISTRY_TOOLS_OPTIONS_HXX */
 
diff --git a/scaddins/source/analysis/bessel.hxx b/scaddins/source/analysis/bessel.hxx
index 7aea95707829..58086ed258ed 100644
--- a/scaddins/source/analysis/bessel.hxx
+++ b/scaddins/source/analysis/bessel.hxx
@@ -22,8 +22,7 @@
 
 #include <sal/types.h>
 
-namespace sca {
-namespace analysis {
+namespace sca::analysis {
 
 
 //     BESSEL functions
@@ -57,8 +56,7 @@ double BesselY( double x, sal_Int32 n );
 */
 double BesselK( double x, sal_Int32 n );
 
-} // namespace analysis
-} // namespace sca
+} // namespace sca::analysis
 
 #endif
 
diff --git a/scaddins/source/pricing/pricing.hxx b/scaddins/source/pricing/pricing.hxx
index 8acbfd4a8307..ead7296762a4 100644
--- a/scaddins/source/pricing/pricing.hxx
+++ b/scaddins/source/pricing/pricing.hxx
@@ -42,8 +42,7 @@ namespace com::sun::star::lang { class XMultiServiceFactory; }
 #define RETURN_FINITE(d)    if( !std::isfinite( d ) ) throw css::lang::IllegalArgumentException(); return d;
 
 
-namespace sca {
-namespace pricing {
+namespace sca::pricing {
 
 enum class ScaCategory
 {
@@ -112,8 +111,7 @@ struct FindScaFuncData
     bool operator() ( ScaFuncData const & rCandidate ) const { return rCandidate.Is(m_rId); }
 };
 
-} // namespace pricing
-} // namespace sca
+} // namespace sca::pricing
 
 
 css::uno::Reference< css::uno::XInterface > SAL_CALL PricingFunctionAddIn_CreateInstance(
diff --git a/sfx2/inc/thumbnailviewitem.hxx b/sfx2/inc/thumbnailviewitem.hxx
index dea5e65c1774..e20a8c0b4f6d 100644
--- a/sfx2/inc/thumbnailviewitem.hxx
+++ b/sfx2/inc/thumbnailviewitem.hxx
@@ -42,7 +42,6 @@ namespace drawinglayer {
     namespace processor2d {
         class BaseProcessor2D;
     }
-
     namespace primitive2d {
         class PolygonHairlinePrimitive2D;
     }
diff --git a/sfx2/source/inc/appdata.hxx b/sfx2/source/inc/appdata.hxx
index b22c59a7dc7b..2e46ce22eb92 100644
--- a/sfx2/source/inc/appdata.hxx
+++ b/sfx2/source/inc/appdata.hxx
@@ -54,10 +54,8 @@ class SfxInterface;
 class BasicManager;
 class SfxBasicManagerHolder;
 class SfxBasicManagerCreationListener;
+namespace sfx2::sidebar { class Theme; }
 
-namespace sfx2 {
-    namespace sidebar { class Theme; }
-}
 
 
 typedef std::vector<SfxDdeDocTopic_Impl*> SfxDdeDocTopics_Impl;
diff --git a/sfx2/source/inc/partwnd.hxx b/sfx2/source/inc/partwnd.hxx
index c8bfad2d5f81..4896b476c685 100644
--- a/sfx2/source/inc/partwnd.hxx
+++ b/sfx2/source/inc/partwnd.hxx
@@ -23,19 +23,7 @@
 #include <sfx2/dockwin.hxx>
 
 
-namespace com
-{
-    namespace sun
-    {
-        namespace star
-        {
-            namespace frame
-            {
-                class XFrame;
-            }
-        }
-    }
-}
+namespace com::sun::star::frame { class XFrame; }
 
 // forward ---------------------------------------------------------------
 
diff --git a/shell/source/backends/kf5be/kf5access.hxx b/shell/source/backends/kf5be/kf5access.hxx
index 34ee7c6d3d6b..77e55fad5dda 100644
--- a/shell/source/backends/kf5be/kf5access.hxx
+++ b/shell/source/backends/kf5be/kf5access.hxx
@@ -24,19 +24,10 @@
 
 #include <com/sun/star/beans/Optional.hpp>
 
-namespace com
-{
-namespace sun
-{
-namespace star
-{
-namespace uno
+namespace com::sun::star::uno
 {
 class Any;
 }
-}
-}
-}
 
 namespace kf5access
 {
diff --git a/starmath/source/smdetect.hxx b/starmath/source/smdetect.hxx
index 7869146f414b..d1eceaecf940 100644
--- a/starmath/source/smdetect.hxx
+++ b/starmath/source/smdetect.hxx
@@ -27,19 +27,7 @@
 #include <com/sun/star/lang/XServiceInfo.hpp>
 
 
-namespace com
-{
-    namespace sun
-    {
-        namespace star
-        {
-            namespace beans
-            {
-                struct PropertyValue;
-            }
-        }
-    }
-}
+namespace com::sun::star::beans { struct PropertyValue; }
 
 class SmFilterDetect : public ::cppu::WeakImplHelper< css::document::XExtendedFilterDetection, css::lang::XServiceInfo >
 {
diff --git a/uui/source/secmacrowarnings.hxx b/uui/source/secmacrowarnings.hxx
index 590ef0768069..536f70e09fc2 100644
--- a/uui/source/secmacrowarnings.hxx
+++ b/uui/source/secmacrowarnings.hxx
@@ -25,12 +25,8 @@
 #include <com/sun/star/uno/Sequence.hxx>
 #include <vcl/weld.hxx>
 
-namespace com {
-namespace sun {
-namespace star {
-namespace security {
-    class XCertificate; }
-}}}
+namespace com::sun::star::security { class XCertificate; }
+
 
 class MacroWarning : public weld::MessageDialogController
 {
diff --git a/xmloff/inc/fasttokenhandler.hxx b/xmloff/inc/fasttokenhandler.hxx
index 8e5a1cbb1c6e..076cd90b55f4 100644
--- a/xmloff/inc/fasttokenhandler.hxx
+++ b/xmloff/inc/fasttokenhandler.hxx
@@ -18,8 +18,7 @@
 #include <sal/log.hxx>
 #include <xmloff/dllapi.h>
 
-namespace xmloff {
-namespace token {
+namespace xmloff::token {
 
 class TokenMap
 {
@@ -89,8 +88,7 @@ private:
     TokenMap& mrTokenMap;
 };
 
-} // namespace token
-} // namespace xmloff
+} // namespace xmloff::token
 
 #endif
 
diff --git a/xmloff/source/chart/ColorPropertySet.hxx b/xmloff/source/chart/ColorPropertySet.hxx
index f10d9e10ef45..c3d3d560e914 100644
--- a/xmloff/source/chart/ColorPropertySet.hxx
+++ b/xmloff/source/chart/ColorPropertySet.hxx
@@ -25,9 +25,7 @@
 #include <com/sun/star/beans/XPropertySet.hpp>
 #include <com/sun/star/beans/XPropertyState.hpp>
 
-namespace xmloff
-{
-namespace chart
+namespace xmloff::chart
 {
 
 class ColorPropertySet : public ::cppu::WeakImplHelper<
@@ -76,8 +74,7 @@ private:
     Color     m_nDefaultColor;
 };
 
-} //  namespace chart
-} //  namespace xmloff
+} //  namespace xmloff::chart
 
 // XMLOFF_COLORPROPERTYSET_HXX
 #endif
diff --git a/xmlsecurity/inc/documentsignaturehelper.hxx b/xmlsecurity/inc/documentsignaturehelper.hxx
index ccf71edd9c62..d96275a36a48 100644
--- a/xmlsecurity/inc/documentsignaturehelper.hxx
+++ b/xmlsecurity/inc/documentsignaturehelper.hxx
@@ -26,14 +26,10 @@
 
 #include <vector>
 
-namespace com {
-namespace sun {
-namespace star {
-namespace io {
-    class XStream; }
-namespace embed {
-    class XStorage; }
-}}}
+namespace com::sun::star {
+    namespace io { class XStream; }
+    namespace embed { class XStorage; }
+}
 
 namespace com::sun::star::xml::sax { class XDocumentHandler; }
 
diff --git a/xmlsecurity/inc/documentsignaturemanager.hxx b/xmlsecurity/inc/documentsignaturemanager.hxx
index e7149c3fe195..3854571e9ac3 100644
--- a/xmlsecurity/inc/documentsignaturemanager.hxx
+++ b/xmlsecurity/inc/documentsignaturemanager.hxx
@@ -30,11 +30,7 @@
 
 #include <com/sun/star/xml/crypto/XSEInitializer.hpp>
 
-namespace com
-{
-namespace sun
-{
-namespace star
+namespace com::sun::star
 {
 namespace beans
 {
@@ -57,8 +53,6 @@ namespace uno
 class XComponentContext;
 }
 }
-}
-}
 class PDFSignatureHelper;
 
 /// Manages signatures (addition, removal), used by DigitalSignaturesDialog.
diff --git a/xmlsecurity/inc/pdfio/pdfdocument.hxx b/xmlsecurity/inc/pdfio/pdfdocument.hxx
index 996bb1527bb8..e72a7edd2de7 100644
--- a/xmlsecurity/inc/pdfio/pdfdocument.hxx
+++ b/xmlsecurity/inc/pdfio/pdfdocument.hxx
@@ -13,19 +13,14 @@
 
 #include <xmlsecuritydllapi.h>
 
-namespace vcl
-{
-namespace filter
+namespace vcl::filter
 {
 class PDFObjectElement;
 }
-}
 struct SignatureInformation;
 class SvStream;
 
-namespace xmlsecurity
-{
-namespace pdfio
+namespace xmlsecurity::pdfio
 {
 /**
  * @param rInformation The actual result.
@@ -36,8 +31,7 @@ XMLSECURITY_DLLPUBLIC bool ValidateSignature(SvStream& rStream,
                                              vcl::filter::PDFObjectElement* pSignature,
                                              SignatureInformation& rInformation, bool bLast);
 
-} // namespace pdfio
-} // namespace xmlsecurity
+} // namespace xmlsecurity::pdfio
 
 #endif // INCLUDED_XMLSECURITY_INC_PDFIO_PDFDOCUMENT_HXX
 
diff --git a/xmlsecurity/inc/pdfsignaturehelper.hxx b/xmlsecurity/inc/pdfsignaturehelper.hxx
index f8f1e893beb2..25b0c42e6478 100644
--- a/xmlsecurity/inc/pdfsignaturehelper.hxx
+++ b/xmlsecurity/inc/pdfsignaturehelper.hxx
@@ -15,11 +15,7 @@
 
 #include <svl/sigstruct.hxx>
 
-namespace com
-{
-namespace sun
-{
-namespace star
+namespace com::sun::star
 {
 namespace frame
 {
@@ -37,16 +33,11 @@ namespace security
 {
 struct DocumentSignatureInformation;
 }
-namespace xml
-{
-namespace crypto
+namespace xml::crypto
 {
 class XSecurityEnvironment;
 }
 }
-}
-}
-}
 
 /// Handles signatures of a PDF file.
 class XMLSECURITY_DLLPUBLIC PDFSignatureHelper
diff --git a/xmlsecurity/inc/xmlsignaturehelper.hxx b/xmlsecurity/inc/xmlsignaturehelper.hxx
index 2437686ea31b..85dc769d8268 100644
--- a/xmlsecurity/inc/xmlsignaturehelper.hxx
+++ b/xmlsecurity/inc/xmlsignaturehelper.hxx
@@ -31,15 +31,13 @@
 class DateTime;
 class UriBindingHelper;
 
-namespace com {
-namespace sun {
-namespace star {
-namespace io {
-    class XOutputStream;
-    class XInputStream; }
-namespace embed {
-    class XStorage; }
-}}}
+namespace com::sun::star {
+    namespace io {
+        class XOutputStream;
+        class XInputStream;
+    }
+    namespace embed { class XStorage; }
+}
 
 namespace com::sun::star::graphic { class XGraphic; }
 namespace com::sun::star::uno { class XComponentContext; }
diff --git a/xmlsecurity/inc/xmlsignaturehelper2.hxx b/xmlsecurity/inc/xmlsignaturehelper2.hxx
index 928ea19ed3fa..2b28fa0d410d 100644
--- a/xmlsecurity/inc/xmlsignaturehelper2.hxx
+++ b/xmlsecurity/inc/xmlsignaturehelper2.hxx
@@ -26,14 +26,10 @@
 
 #include <com/sun/star/xml/crypto/XUriBinding.hpp>
 
-namespace com {
-namespace sun {
-namespace star {
-namespace io {
-    class XInputStream; }
-namespace embed {
-    class XStorage; }
-}}}
+namespace com::sun::star {
+    namespace io { class XInputStream; }
+    namespace embed { class XStorage; }
+}
 
 // XUriBinding
 
diff --git a/xmlsecurity/source/helper/ooxmlsecexporter.hxx b/xmlsecurity/source/helper/ooxmlsecexporter.hxx
index 5d94da2fdb6c..5f432ae8fb5f 100644
--- a/xmlsecurity/source/helper/ooxmlsecexporter.hxx
+++ b/xmlsecurity/source/helper/ooxmlsecexporter.hxx
@@ -14,11 +14,7 @@
 
 #include <svl/sigstruct.hxx>
 
-namespace com
-{
-namespace sun
-{
-namespace star
+namespace com::sun::star
 {
 namespace embed
 {
@@ -28,16 +24,11 @@ namespace uno
 {
 class XComponentContext;
 }
-namespace xml
-{
-namespace sax
+namespace xml::sax
 {
 class XDocumentHandler;
 }
 }
-}
-}
-}
 
 /// Writes a single OOXML digital signature.
 class OOXMLSecExporter