4 files changed, 10 insertions, 6 deletions
diff --git a/src/Catalogue.cxx b/src/Catalogue.cxx
index 4da096d81..438fd2ba1 100644
--- a/src/Catalogue.cxx
+++ b/src/Catalogue.cxx
@@ -1,6 +1,8 @@
 // Scintilla source code edit control
 /** @file Catalogue.cxx
- ** Colourise for particular languages.
+ ** Lexer infrastructure.
+ ** Contains a list of LexerModules which can be searched to find a module appropriate for a
+ ** particular language.
  **/
 // Copyright 1998-2002 by Neil Hodgson <neilh@scintilla.org>
 // The License.txt file describes the conditions under which this software may be distributed.
diff --git a/src/Catalogue.h b/src/Catalogue.h
index b75a59fc8..d8769a896 100644
--- a/src/Catalogue.h
+++ b/src/Catalogue.h
@@ -1,6 +1,8 @@
 // Scintilla source code edit control
 /** @file Catalogue.h
  ** Lexer infrastructure.
+ ** Contains a list of LexerModules which can be searched to find a module appropriate for a
+ ** particular language.
  **/
 // Copyright 1998-2010 by Neil Hodgson <neilh@scintilla.org>
 // The License.txt file describes the conditions under which this software may be distributed.
diff --git a/src/ExternalLexer.cxx b/src/ExternalLexer.cxx
index 54bd62939..dd9a7179e 100644
--- a/src/ExternalLexer.cxx
+++ b/src/ExternalLexer.cxx
@@ -1,6 +1,6 @@
 // Scintilla source code edit control
 /** @file ExternalLexer.cxx
- ** Support external lexers in DLLs.
+ ** Support external lexers in DLLs or shared libraries.
  **/
 // Copyright 2001 Simon Steele <ss@pnotepad.org>, portions copyright Neil Hodgson.
 // The License.txt file describes the conditions under which this software may be distributed.
diff --git a/src/ExternalLexer.h b/src/ExternalLexer.h
index 1373c911d..ea7f20958 100644
--- a/src/ExternalLexer.h
+++ b/src/ExternalLexer.h
@@ -1,6 +1,6 @@
 // Scintilla source code edit control
 /** @file ExternalLexer.h
- ** Support external lexers in DLLs.
+ ** Support external lexers in DLLs or shared libraries.
  **/
 // Copyright 2001 Simon Steele <ss@pnotepad.org>, portions copyright Neil Hodgson.
 // The License.txt file describes the conditions under which this software may be distributed.
@@ -28,9 +28,9 @@ protected:
 	std::string name;
 public:
 	ExternalLexerModule(int language_, LexerFunction fnLexer_,
-		const char *languageName_=0, LexerFunction fnFolder_=0) :
-		LexerModule(language_, fnLexer_, 0, fnFolder_),
-		fneFactory(0), name(languageName_){
+		const char *languageName_=nullptr, LexerFunction fnFolder_=nullptr) :
+		LexerModule(language_, fnLexer_, nullptr, fnFolder_),
+		fneFactory(nullptr), name(languageName_){
 		languageName = name.c_str();
 	}
 	virtual void SetExternal(GetLexerFactoryFunction fFactory, int index);