Refactoring: prepare output generators for multi-threaded use

1 files changed, 15 insertions, 13 deletions

diff --git a/src/docvisitor.h b/src/docvisitor.h
index 0a53595..105b97c 100644
--- a/src/docvisitor.h
+++ b/src/docvisitor.h
@@ -1,13 +1,10 @@
 /******************************************************************************
  *
- * 
- *
- *
- * Copyright (C) 1997-2015 by Dimitri van Heesch.
+ * Copyright (C) 1997-2020 by Dimitri van Heesch.
  *
  * Permission to use, copy, modify, and distribute this software and its
- * documentation under the terms of the GNU General Public License is hereby 
- * granted. No representations are made about the suitability of this software 
+ * documentation under the terms of the GNU General Public License is hereby
+ * granted. No representations are made about the suitability of this software
  * for any purpose. It is provided "as is" without express or implied warranty.
  * See the GNU General Public License for more details.
  *
@@ -19,6 +16,8 @@
 #ifndef _DOCVISITOR_H
 #define _DOCVISITOR_H
 
+#include <memory>
+
 // ids
 const int DocVisitor_Html  = 0;
 const int DocVisitor_Latex = 1;
@@ -84,18 +83,21 @@ class DocSimpleSectSep;
 class DocHtmlBlockQuote;
 class DocVhdlFlow;
 class DocParBlock;
+class CodeParserInterface;
 
 /*! @brief Abstract visitor that participates in the visitor pattern.
  */
 class DocVisitor
 {
-    int m_id;
+    struct Private;
+    std::unique_ptr<Private> p;
   public:
-    DocVisitor(int id) : m_id(id) {}
-    virtual ~DocVisitor() {}
-    int id() const { return m_id; }
+    DocVisitor(int id);
+    virtual ~DocVisitor();
+    int id() const;
+    CodeParserInterface &getCodeParser(const char *langExt);
 
-    /*! @name Visitor functions for leaf nodes 
+    /*! @name Visitor functions for leaf nodes
      *  @{
      */
     virtual void visit(DocWord *) = 0;
@@ -117,7 +119,7 @@ class DocVisitor
     virtual void visit(DocCite *) = 0;
     /*! @} */
 
-    /*! @name Visitor functions for internal nodes 
+    /*! @name Visitor functions for internal nodes
      *  @{
      */
     virtual void visitPre(DocAutoList *) = 0;
@@ -167,7 +169,7 @@ class DocVisitor
     virtual void visitPre(DocDotFile *) = 0;
     virtual void visitPost(DocDotFile *) = 0;
     virtual void visitPre(DocMscFile *) = 0;
-    virtual void visitPost(DocMscFile *) = 0;   
+    virtual void visitPost(DocMscFile *) = 0;
     virtual void visitPre(DocDiaFile *) = 0;
     virtual void visitPost(DocDiaFile *) = 0;
     virtual void visitPre(DocLink *) = 0;