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diff --git a/src/vhdlscanner.h b/src/vhdlscanner.h
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+/******************************************************************************
+ *
+ * $Id: vhdlscanner.h,v 1.9 2001/03/19 19:27:39 root Exp $
+ *
+ * Copyright (C) 1997-2012 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 
+ * for any purpose. It is provided "as is" without express or implied warranty.
+ * See the GNU General Public License for more details.
+ *
+ * Documents produced by Doxygen are derivative works derived from the
+ * input used in their production; they are not affected by this license.
+ *
+ */
+
+#ifndef VHDLSCANNER_H
+#define VHDLSCANNER_H
+
+#include "parserintf.h"
+#include <stdio.h>
+#include <stdlib.h>
+#include <assert.h>
+#include <ctype.h>
+
+#include <qarray.h>
+#include <unistd.h>
+#include <qfile.h>
+#include <qdict.h>
+
+#include "entry.h"
+#include "memberlist.h"
+
+class Entry;
+class ClassSDict;
+class FileStorage;
+class ClassDef;
+class MemberDef;
+class QStringList;
+
+
+/** VHDL parser using state-based lexical scanning.
+ *
+ * This is the VHDL language parser for doxygen.
+ */
+class VHDLLanguageScanner : public ParserInterface
+{
+  public:
+    virtual ~VHDLLanguageScanner() {}
+    void parseInput(const char * fileName, 
+                    const char *fileBuf, 
+                    Entry *root);
+    bool needsPreprocessing(const QCString &extension);
+    void parseCode(CodeOutputInterface &codeOutIntf,
+                   const char *scopeName,
+                   const QCString &input,
+                   bool isExampleBlock,
+                   const char *exampleName=0,
+                   FileDef *fileDef=0,
+                   int startLine=-1,
+                   int endLine=-1,
+                   bool inlineFragment=FALSE,
+                   MemberDef *memberDef=0,
+                   bool showLineNumbers=TRUE,
+                   Definition *searchCtx=0
+                  );
+    void resetCodeParserState();
+    void parsePrototype(const char *text);
+};
+
+/** Container for vhdlscanner */
+struct VhdlContainer
+{
+  int yyLineNr;          // current line no
+  int iLine;             // line no of last t_identifier  
+  QCString qstr;         //  t_identifier 
+  QCString fileName;     // current file
+  Entry*  root;          // root
+};   
+
+/** Configuation node for VHDL */
+struct VhdlConfNode
+{ 
+  VhdlConfNode *prevNode;
+  VhdlConfNode(const char*  a,const char*  b,const char* config) 
+  { 
+    arch=a;              // architecture  e.g. for iobuffer
+    binding=b;           // binding e.g.  use entiy work.xxx(bev)
+    confVhdl=config;     // configuration foo is bar
+    isBind=false;
+    prevNode=NULL;
+    isRoot=false;          
+    isInlineConf=false;  // primary configuration?
+  };
+
+  QCString confVhdl;
+  QCString arch;
+  QCString binding;
+  QList<VhdlConfNode> confN;
+  bool isBind;
+  bool isInlineConf;
+  bool isRoot;
+
+  void addNode(VhdlConfNode* n) { confN.append(n); }
+  bool isBinding()          { return binding.isEmpty(); }
+};
+
+// returns the current conpound entity,architecture, package,package body 
+Entry* getVhdlCompound();
+
+// return the current parsed entry
+Entry* getCurrentVhdlEntry();
+
+void newVhdlEntry();
+
+void initVhdlParser();
+
+struct VhdlContainer* getVhdlCont();
+
+// returns the  parsed line 
+// @ param object index of vhdl keyword like t_Identifier t_Entity 
+int getParsedLine(int object);
+
+void vhdlscanFreeScanner();
+
+void vhdlParse();
+
+// return the list of component instantiations e.g. foo: component bar 
+QList<Entry> &  getVhdlInstList();
+
+// returns the list of found configurations
+QList<VhdlConfNode>& getVhdlConfiguration();
+
+void isVhdlDocPending();
+#endif