cpython.git - https://github.com/python/cpython.git

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author	Tim Peters <tim.peters@gmail.com>	2000-10-07 05:09:39 (GMT)
committer	Tim Peters <tim.peters@gmail.com>	2000-10-07 05:09:39 (GMT)
commit	de49583a0d59f806b88b0f6a869f470047b3cbce (patch)
tree	eb9b53a60d7e3425a7266ced49a421ff2bcebd68
parent	70d87d73291ca6263955c57842c07e98be768352 (diff)
download	cpython-de49583a0d59f806b88b0f6a869f470047b3cbce.zip cpython-de49583a0d59f806b88b0f6a869f470047b3cbce.tar.gz cpython-de49583a0d59f806b88b0f6a869f470047b3cbce.tar.bz2

Possible fix for Skip's bug 116136 (sre recursion limit hit in tokenize.py).

tokenize.py has always used naive regexps for matching string literals, and that appears to trigger the sre recursion limit on Skip's platform (he has very long single-line string literals). Replaced all of tokenize.py's string regexps with the "unrolled" forms used in IDLE, where they're known to handle even absurd (multi-megabyte!) string literals without trouble. See Friedl's book for explanation (at heart, the naive regexps create a backtracking choice point for each character in the literal, while the unrolled forms create none).

Diffstat

-rw-r--r--

Lib/tokenize.py

1 files changed, 20 insertions, 12 deletions

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/*****************************************************************************
 *
 * 
 *
 * Copyright (C) 1997-2010 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.
 *
 */

#include <stdlib.h>
#include <ctype.h>
#include <errno.h>
#include <math.h>

#include <md5.h>

#include "qtbc.h"
#include <qregexp.h>
#include <qfileinfo.h>
#include <qdir.h>
#include <qdatetime.h>
#include <qcache.h>

#include "util.h"
#include "message.h"
#include "classdef.h"
#include "filedef.h"
#include "doxygen.h"
#include "outputlist.h"
#include "defargs.h"
#include "language.h"
#include "config.h"
#include "htmlhelp.h"
#include "example.h"
#include "version.h"
#include "groupdef.h"
#include "reflist.h"
#include "pagedef.h"
#include "debug.h"
#include "searchindex.h"
#include "doxygen.h"
#include "textdocvisitor.h"
#include "portable.h"
#include "parserintf.h"
#include "bufstr.h"
#include "image.h"

#define ENABLE_TRACINGSUPPORT 0

#if defined(_OS_MAC_) && ENABLE_TRACINGSUPPORT
#define TRACINGSUPPORT
#endif

#ifdef TRACINGSUPPORT
#include <execinfo.h>
#include <unistd.h>
#endif


//------------------------------------------------------------------------

// selects one of the name to sub-dir mapping algorithms that is used
// to select a sub directory when CREATE_SUBDIRS is set to YES.

#define ALGO_COUNT 1
#define ALGO_CRC16 2
#define ALGO_MD5   3
    
//#define MAP_ALGO ALGO_COUNT
//#define MAP_ALGO ALGO_CRC16
#define MAP_ALGO ALGO_MD5

#define REL_PATH_TO_ROOT "../../"

//------------------------------------------------------------------------
// TextGeneratorOLImpl implementation
//------------------------------------------------------------------------

TextGeneratorOLImpl::TextGeneratorOLImpl(OutputDocInterface &od) : m_od(od) 
{
}

void TextGeneratorOLImpl::writeString(const char *s,bool keepSpaces) const
{ 
  if (keepSpaces)
  {
    const char *p=s;
    if (p)
    {
      char cs[2];
      char c;
      cs[1]='\0';
      while ((c=*p++))
      {
        if (c==' ') m_od.writeNonBreakableSpace(1); 
        else cs[0]=c,m_od.docify(cs);
      }
    }
  }
  else
  {
    m_od.docify(s); 
  }
}

void TextGeneratorOLImpl::writeBreak() const
{ 
  m_od.pushGeneratorState();
  m_od.disableAllBut(OutputGenerator::Html);
  m_od.lineBreak("typebreak");
  m_od.popGeneratorState();
}

void TextGeneratorOLImpl::writeLink(const char *extRef,const char *file,
                                    const char *anchor,const char *text
                                   ) const
{
  m_od.writeObjectLink(extRef,file,anchor,text);
}

//------------------------------------------------------------------------
//------------------------------------------------------------------------

// an inheritance tree of depth of 100000 should be enough for everyone :-)
const int maxInheritanceDepth = 100000; 

/*! 
  Removes all anonymous scopes from string s
  Possible examples:
\verbatim
   "bla::@10::blep"      => "bla::blep"
   "bla::@10::@11::blep" => "bla::blep"
   "@10::blep"           => "blep"
   " @10::blep"          => "blep"
   "@9::@10::blep"       => "blep"
   "bla::@1"             => "bla"
   "bla::@1::@2"         => "bla"
   "bla @1"              => "bla"
\endverbatim
 */
QCString removeAnonymousScopes(const QCString &s)
{
  QCString result;
  if (s.isEmpty()) return result;
  static QRegExp re("[ :]*@[0-9]+[: ]*");
  int i,l,sl=s.length();
  int p=0;
  while ((i=re.match(s,p,&l))!=-1)
  {
    result+=s.mid(p,i-p);
    int c=i;
    bool b1=FALSE,b2=FALSE;
    while (c<i+l && s.at(c)!='@') if (s.at(c++)==':') b1=TRUE;
    c=i+l-1;
    while (c>=i && s.at(c)!='@') if (s.at(c--)==':') b2=TRUE;
    if (b1 && b2) 
    { 
      result+="::"; 
    }
    p=i+l;
  }
  result+=s.right(sl-p);
  //printf("removeAnonymousScopes(`%s')=`%s'\n",s.data(),result.data());
  return result;
}

// replace anonymous scopes with __anonymous__ or replacement if provided
QCString replaceAnonymousScopes(const QCString &s,const char *replacement)
{
  QCString result;
  if (s.isEmpty()) return result;
  static QRegExp re("@[0-9]+");
  int i,l,sl=s.length();
  int p=0;
  while ((i=re.match(s,p,&l))!=-1)
  {
    result+=s.mid(p,i-p);
    if (replacement)
    {
      result+=replacement;
    }
    else
    {
      result+="__anonymous__";
    }
    p=i+l;
  }
  result+=s.right(sl-p);
  //printf("replaceAnonymousScopes(`%s')=`%s'\n",s.data(),result.data());
  return result;
}


// strip anonymous left hand side part of the scope
QCString stripAnonymousNamespaceScope(const QCString &s)
{
  int i,p=0,l;
  QCString newScope;
  while ((i=getScopeFragment(s,p,&l))!=-1)
  {
    //printf("Scope fragment %s\n",s.mid(i,l).data());
    if (Doxygen::namespaceSDict->find(s.left(i+l))!=0)
    {
      if (s.at(i)!='@')
      {
        if (!newScope.isEmpty()) newScope+="::";
        newScope+=s.mid(i,l);
      }
    }
    else
    {
      if (!newScope.isEmpty()) newScope+="::";
      newScope+=s.right(s.length()-i);
      goto done;
    }
    p=i+l;
  }
done:
  //printf("stripAnonymousNamespaceScope(`%s')=`%s'\n",s.data(),newScope.data());
  return newScope;
}

void writePageRef(OutputDocInterface &od,const char *cn,const char *mn)
{
  od.pushGeneratorState();
  
  od.disable(OutputGenerator::Html);
  od.disable(OutputGenerator::Man);
  if (Config_getBool("PDF_HYPERLINKS")) od.disable(OutputGenerator::Latex);
  if (Config_getBool("RTF_HYPERLINKS")) od.disable(OutputGenerator::RTF);
  od.startPageRef();
  od.docify(theTranslator->trPageAbbreviation());
  od.endPageRef(cn,mn);

  od.popGeneratorState();
}

/*! Generate a place holder for a position in a list. Used for
 *  translators to be able to specify different elements orders
 *  depending on whether text flows from left to right or visa versa.
 */
QCString generateMarker(int id)
{
  QCString result;
  result.sprintf("@%d",id);
  return result;
}

static QCString stripFromPath(const QCString &path,QStrList &l)
{
  // look at all the strings in the list and strip the longest match  
  const char *s=l.first();
  QCString potential;
  unsigned int length = 0;
  while (s)
  {
    QCString prefix = s;
    if (prefix.length() > length &&
        stricmp(path.left(prefix.length()),prefix)==0) // case insensitive compare
    {
      length = prefix.length();
      potential = path.right(path.length()-prefix.length());
    }
    s = l.next();
  }
  if (length) return potential;
  return path;
}

/*! strip part of \a path if it matches
 *  one of the paths in the Config_getList("STRIP_FROM_PATH") list
 */
QCString stripFromPath(const QCString &path)
{
  return stripFromPath(path,Config_getList("STRIP_FROM_PATH"));
}

/*! strip part of \a path if it matches
 *  one of the paths in the Config_getList("INCLUDE_PATH") list
 */
QCString stripFromIncludePath(const QCString &path)
{
  return stripFromPath(path,Config_getList("STRIP_FROM_INC_PATH"));
}

/*! try to determine if \a name is a source or a header file name by looking
 * at the extension. A number of variations is allowed in both upper and 
 * lower case) If anyone knows or uses another extension please let me know :-)
 */
int guessSection(const char *name)
{
  QCString n=((QCString)name).lower();
  if (n.right(2)==".c"    || // source
      n.right(3)==".cc"   ||
      n.right(4)==".cxx"  ||
      n.right(4)==".cpp"  ||
      n.right(4)==".c++"  ||
      n.right(5)==".java" ||
      n.right(3)==".ii"   || // inline
      n.right(4)==".ixx"  ||
      n.right(4)==".ipp"  ||
      n.right(4)==".i++"  ||
      n.right(4)==".inl"  ||
      n.right(4)==".xml"
     ) return Entry::SOURCE_SEC;
  if (n.right(2)==".h"   || // header
      n.right(3)==".hh"  ||
      n.right(4)==".hxx" ||
      n.right(4)==".hpp" ||
      n.right(4)==".h++" ||
      n.right(4)==".idl" ||
      n.right(4)==".ddl" ||
      n.right(5)==".pidl"
     ) return Entry::HEADER_SEC;
  return 0;
}

QCString resolveTypeDef(Definition *context,const QCString &qualifiedName,
                        Definition **typedefContext)
{
  //printf("<<resolveTypeDef(%s,%s)\n",
  //          context ? context->name().data() : "<none>",qualifiedName.data());
  QCString result;
  if (qualifiedName.isEmpty()) 
  {
    //printf("  qualified name empty!\n");
    return result;
  }

  Definition *mContext=context;
  if (typedefContext) *typedefContext=context;

  // see if the qualified name has a scope part
  int scopeIndex = qualifiedName.findRev("::");
  QCString resName=qualifiedName;
  if (scopeIndex!=-1) // strip scope part for the name
  {
    resName=qualifiedName.right(qualifiedName.length()-scopeIndex-2);
    if (resName.isEmpty())
    {
      // qualifiedName was of form A:: !
      //printf("  qualified name of form A::!\n");
      return result;
    }
  }
  MemberDef *md=0;
  while (mContext && md==0)
  {
    // step 1: get the right scope
    Definition *resScope=mContext;
    if (scopeIndex!=-1) 
    {
      // split-off scope part
      QCString resScopeName = qualifiedName.left(scopeIndex);
      //printf("resScopeName=`%s'\n",resScopeName.data());

      // look-up scope in context
      int is,ps=0;
      int l;
      while ((is=getScopeFragment(resScopeName,ps,&l))!=-1)
      {
        QCString qualScopePart = resScopeName.mid(is,l);
        QCString tmp = resolveTypeDef(mContext,qualScopePart);
        if (!tmp.isEmpty()) qualScopePart=tmp;
        resScope = resScope->findInnerCompound(qualScopePart);
        //printf("qualScopePart=`%s' resScope=%p\n",qualScopePart.data(),resScope);
        if (resScope==0) break;
        ps=is+l;
      }
    }
    //printf("resScope=%s\n",resScope?resScope->name().data():"<none>");
    
    // step 2: get the member
    if (resScope) // no scope or scope found in the current context 
    {
      //printf("scope found: %s, look for typedef %s\n",
      //     resScope->qualifiedName().data(),resName.data());
      MemberNameSDict *mnd=0;
      if (resScope->definitionType()==Definition::TypeClass)
      {
        mnd=Doxygen::memberNameSDict;
      }
      else
      {
        mnd=Doxygen::functionNameSDict;
      }
      MemberName *mn=mnd->find(resName);
      if (mn)
      {
        MemberNameIterator mni(*mn);
        MemberDef *tmd=0;
        int minDist=-1;
        for (;(tmd=mni.current());++mni)
        {
          //printf("Found member %s resScope=%s outerScope=%s mContext=%p\n",
          //    tmd->name().data(), resScope->name().data(), 
          //    tmd->getOuterScope()->name().data(), mContext);
          if (tmd->isTypedef() /*&& tmd->getOuterScope()==resScope*/)
          {
            int dist=isAccessibleFrom(resScope,0,tmd);
            if (dist!=-1 && (md==0 || dist<minDist))
            {
              md = tmd;
              minDist = dist;
            }
          }
        }
      }
    }
    mContext=mContext->getOuterScope();
  }

  // step 3: get the member's type
  if (md)
  {
    //printf(">>resolveTypeDef: Found typedef name `%s' in scope `%s' value=`%s' args='%s'\n",
    //    qualifiedName.data(),context->name().data(),md->typeString(),md->argsString()
    //    );
    result=md->typeString();
    QString args = md->argsString();
    if (result.find("*)")!=-1) // typedef of a function/member pointer
    {
      result+=md->argsString();
    }
    if (args.find('[')!=-1)
    {
      result+=args;
    }
    if (typedefContext) *typedefContext=md->getOuterScope();
  }
  else
  {
    //printf(">>resolveTypeDef: Typedef `%s' not found in scope `%s'!\n",
    //    qualifiedName.data(),context ? context->name().data() : "<global>");
  }
  return result;
  
}


/*! Get a class definition given its name. 
 *  Returns 0 if the class is not found.
 */
ClassDef *getClass(const char *name)
{
  if (name==0 || name[0]=='\0') return 0;
  return Doxygen::classSDict->find(name);
}

NamespaceDef *getResolvedNamespace(const char *name)
{
  if (name==0 || name[0]=='\0') return 0;
  QCString *subst = Doxygen::namespaceAliasDict[name];
  if (subst)
  {
    int count=0; // recursion detection guard
    QCString *newSubst;
    while ((newSubst=Doxygen::namespaceAliasDict[*subst]) && count<10)
    {
      subst=newSubst;
      count++;
    }
    if (count==10)
    {
      err("warning: possible recursive namespace alias detected for %s!\n",name);
    }
    return Doxygen::namespaceSDict->find(subst->data());
  }
  else
  {
    return Doxygen::namespaceSDict->find(name);
  }
}

static QDict<MemberDef> g_resolvedTypedefs;
static QDict<Definition> g_visitedNamespaces;

// forward declaration
ClassDef *getResolvedClassRec(Definition *scope,
                              FileDef *fileScope,
                              const char *n,
                              MemberDef **pTypeDef,
                              QCString *pTemplSpec,
                              QCString *pResolvedType
                             );
int isAccessibleFromWithExpScope(Definition *scope,FileDef *fileScope,Definition *item,
                     const QCString &explicitScopePart);

/*! Returns the class representing the value of the typedef represented by \a md
 *  within file \a fileScope.
 *
 *  Example: typedef A T; will return the class representing A if it is a class.
 * 
 *  Example: typedef int T; will return 0, since "int" is not a class.
 */
ClassDef *newResolveTypedef(FileDef *fileScope,MemberDef *md,
                            MemberDef **pMemType,QCString *pTemplSpec,
                            QCString *pResolvedType,
                            ArgumentList *actTemplParams)
{
  //printf("newResolveTypedef(md=%p,cachedVal=%p)\n",md,md->getCachedTypedefVal());
  bool isCached = md->isTypedefValCached(); // value already cached
  if (isCached)
  {
    //printf("Already cached %s->%s [%s]\n",
    //    md->name().data(),
    //    md->getCachedTypedefVal()?md->getCachedTypedefVal()->name().data():"<none>",
    //    md->getCachedResolvedTypedef()?md->getCachedResolvedTypedef().data():"<none>");

    if (pTemplSpec)    *pTemplSpec    = md->getCachedTypedefTemplSpec();
    if (pResolvedType) *pResolvedType = md->getCachedResolvedTypedef();
    return md->getCachedTypedefVal();
  }
  //printf("new typedef\n");
  QCString qname = md->qualifiedName();
  if (g_resolvedTypedefs.find(qname)) return 0; // typedef already done

  g_resolvedTypedefs.insert(qname,md); // put on the trace list
  
  ClassDef *typeClass = md->getClassDef();
  QCString type = md->typeString(); // get the "value" of the typedef
  if (typeClass && typeClass->isTemplate() && 
      actTemplParams && actTemplParams->count()>0)
  {
    type = substituteTemplateArgumentsInString(type,
            typeClass->templateArguments(),actTemplParams);
  }
  QCString typedefValue = type;
  int tl=type.length();
  int ip=tl-1; // remove * and & at the end
  while (ip>=0 && (type.at(ip)=='*' || type.at(ip)=='&' || type.at(ip)==' ')) 
  {
    ip--;
  }
  type=type.left(ip+1);
  type.stripPrefix("const ");  // strip leading "const"
  type.stripPrefix("struct "); // strip leading "struct"
  type.stripPrefix("union ");  // strip leading "union"
  int sp=0;
  tl=type.length(); // length may have been changed
  while (sp<tl && type.at(sp)==' ') sp++;
  MemberDef *memTypeDef = 0;
  ClassDef  *result = getResolvedClassRec(md->getOuterScope(),
                                  fileScope,type,&memTypeDef,0,pResolvedType);
  // if type is a typedef then return what it resolves to.
  if (memTypeDef && memTypeDef->isTypedef()) 
  {
    result=newResolveTypedef(fileScope,memTypeDef,pMemType,pTemplSpec);
    goto done;
  }
  else if (memTypeDef && memTypeDef->isEnumerate() && pMemType)
  {
    *pMemType = memTypeDef;
  }

  //printf("type=%s result=%p\n",type.data(),result);
  if (result==0)
  {
    // try unspecialized version if type is template
    int si=type.findRev("::");
    int i=type.find('<');
    if (si==-1 && i!=-1) // typedef of a template => try the unspecialized version
    {
      if (pTemplSpec) *pTemplSpec = type.mid(i);
      result = getResolvedClassRec(md->getOuterScope(),fileScope,
                                   type.left(i),0,0,pResolvedType);
      //printf("result=%p pRresolvedType=%s sp=%d ip=%d tl=%d\n",
      //    result,pResolvedType?pResolvedType->data():"<none>",sp,ip,tl);
    }
    else if (si!=-1) // A::B
    {
      i=type.find('<',si);
      if (i==-1) // Something like A<T>::B => lookup A::B
      {
        i=type.length();
      }
      else // Something like A<T>::B<S> => lookup A::B, spec=<S>
      {
        if (pTemplSpec) *pTemplSpec = type.mid(i);
      }
      result = getResolvedClassRec(md->getOuterScope(),fileScope,
           stripTemplateSpecifiersFromScope(type.left(i),FALSE),0,0,
           pResolvedType);
    }

    //if (result) ip=si+sp+1;
  }

done:
  if (pResolvedType)
  {
    if (result)
    {
      *pResolvedType=result->qualifiedName();
      //printf("*pResolvedType=%s\n",pResolvedType->data());
      if (sp>0)    pResolvedType->prepend(typedefValue.left(sp));
      if (ip<tl-1) pResolvedType->append(typedefValue.right(tl-ip-1));
    }
    else
    {
      *pResolvedType=typedefValue;
    }
  }

  // remember computed value for next time
  if (result && result->getDefFileName()!="<code>") 
    // this check is needed to prevent that temporary classes that are 
    // introduced while parsing code fragments are being cached here.
  {
    //printf("setting cached typedef %p in result %p\n",md,result);
    //printf("==> %s (%s,%d)\n",result->name().data(),result->getDefFileName().data(),result->getDefLine());
    //printf("*pResolvedType=%s\n",pResolvedType?pResolvedType->data():"<none>");
    md->cacheTypedefVal(result,
        pTemplSpec ? *pTemplSpec : QCString(),
        pResolvedType ? *pResolvedType : QCString()
       );
  }
  
  g_resolvedTypedefs.remove(qname); // remove from the trace list
  
  return result;
}

/*! Substitutes a simple unqualified \a name within \a scope. Returns the
 *  value of the typedef or \a name if no typedef was found.
 */
static QCString substTypedef(Definition *scope,FileDef *fileScope,const QCString &name,
            MemberDef **pTypeDef=0)
{
  QCString result=name;
  if (name.isEmpty()) return result;

  // lookup scope fragment in the symbol map
  DefinitionIntf *di = Doxygen::symbolMap->find(name);
  if (di==0) return result; // no matches

  MemberDef *bestMatch=0;
  if (di->definitionType()==DefinitionIntf::TypeSymbolList) // multi symbols
  {
    // search for the best match
    DefinitionListIterator dli(*(DefinitionList*)di);
    Definition *d;
    int minDistance=10000; // init at "infinite"
    for (dli.toFirst();(d=dli.current());++dli) // foreach definition
    {
      // only look at members
      if (d->definitionType()==Definition::TypeMember)
      {
        // that are also typedefs
        MemberDef *md = (MemberDef *)d;
        if (md->isTypedef()) // d is a typedef
        {
          // test accessibility of typedef within scope.
          int distance = isAccessibleFromWithExpScope(scope,fileScope,d,"");
          if (distance!=-1 && distance<minDistance) 
            // definition is accessible and a better match
          {
            minDistance=distance;
            bestMatch = md; 
          }
        }
      }
    }
  }
  else if (di->definitionType()==DefinitionIntf::TypeMember) // single symbol
  {
    Definition *d = (Definition*)di;
    // that are also typedefs
    MemberDef *md = (MemberDef *)di;
    if (md->isTypedef()) // d is a typedef
    {
      // test accessibility of typedef within scope.
      int distance = isAccessibleFromWithExpScope(scope,fileScope,d,"");
      if (distance!=-1) // definition is accessible 
      {
        bestMatch = md; 
      }
    }
  }
  if (bestMatch) 
  {
    result = bestMatch->typeString();
    if (pTypeDef) *pTypeDef=bestMatch;
  }
  
  //printf("substTypedef(%s,%s)=%s\n",scope?scope->name().data():"<global>",
  //                                  name.data(),result.data());
  return result;
}

static Definition *endOfPathIsUsedClass(SDict<Definition> *cl,const QCString &localName)
{
  if (cl)
  {
    SDict<Definition>::Iterator cli(*cl);
    Definition *cd;
    for (cli.toFirst();(cd=cli.current());++cli)
    {
      if (cd->localName()==localName)
      {
        return cd;
      }
    }
  }
  return 0;
}

/*! Starting with scope \a start, the string \a path is interpreted as
 *  a part of a qualified scope name (e.g. A::B::C), and the scope is 
 *  searched. If found the scope definition is returned, otherwise 0 
 *  is returned.
 */
static Definition *followPath(Definition *start,FileDef *fileScope,const QCString &path)
{
  int is,ps;
  int l;
  Definition *current=start;
  ps=0;
  //printf("followPath: start='%s' path='%s'\n",start?start->name().data():"<none>",path.data());
  // for each part of the explicit scope
  while ((is=getScopeFragment(path,ps,&l))!=-1)
  {
    // try to resolve the part if it is a typedef
    MemberDef *typeDef=0;
    QCString qualScopePart = substTypedef(current,fileScope,path.mid(is,l),&typeDef);
    //printf("      qualScopePart=%s\n",qualScopePart.data());
    if (typeDef)
    {
      ClassDef *type = newResolveTypedef(fileScope,typeDef);
      if (type)
      {
        //printf("Found type %s\n",type->name().data());
        return type;
      }
    }
    Definition *next = current->findInnerCompound(qualScopePart);
    //printf("++ Looking for %s inside %s result %s\n",
    //     qualScopePart.data(),
    //     current->name().data(),
    //     next?next->name().data():"<null>");
    if (next==0) // failed to follow the path 
    {
      //printf("==> next==0!\n");
      if (current->definitionType()==Definition::TypeNamespace)
      {
        next = endOfPathIsUsedClass(
            ((NamespaceDef *)current)->getUsedClasses(),qualScopePart);
      }
      else if (current->definitionType()==Definition::TypeFile)
      {
        next = endOfPathIsUsedClass(
            ((FileDef *)current)->getUsedClasses(),qualScopePart);
      }
      current = next;
      if (current==0) break;
    }
    else // continue to follow scope
    {
      current = next;
      //printf("==> current = %p\n",current);
    }
    ps=is+l;
  }
  //printf("followPath(start=%s,path=%s) result=%s\n",
  //    start->name().data(),path.data(),current?current->name().data():"<null>");
  return current; // path could be followed
}

bool accessibleViaUsingClass(const SDict<Definition> *cl,
                             FileDef *fileScope,
                             Definition *item,
                             const QCString &explicitScopePart=""
                            )
{
  //printf("accessibleViaUsingClass(%p)\n",cl);
  if (cl) // see if the class was imported via a using statement 
  {
    SDict<Definition>::Iterator cli(*cl);
    Definition *ucd;
    bool explicitScopePartEmpty = explicitScopePart.isEmpty();
    for (cli.toFirst();(ucd=cli.current());++cli)
    {
      //printf("Trying via used class %s\n",ucd->name().data());
      Definition *sc = explicitScopePartEmpty ? ucd : followPath(ucd,fileScope,explicitScopePart);
      if (sc && sc==item) return TRUE; 
      //printf("Try via used class done\n");
    }
  }
  return FALSE;
}

bool accessibleViaUsingNamespace(const NamespaceSDict *nl,
                                 FileDef *fileScope,
                                 Definition *item,
                                 const QCString &explicitScopePart="")
{
  static QDict<void> visitedDict;
  if (nl) // check used namespaces for the class
  {
    NamespaceSDict::Iterator nli(*nl);
    NamespaceDef *und;
    int count=0;
    for (nli.toFirst();(und=nli.current());++nli,count++)
    {
      //printf("[Trying via used namespace %s: count=%d/%d\n",und->name().data(),
      //    count,nl->count());
      Definition *sc = explicitScopePart.isEmpty() ? und : followPath(und,fileScope,explicitScopePart);
      if (sc && item->getOuterScope()==sc) 
      {
        //printf("] found it\n");
        return TRUE; 
      }
      QCString key=und->name();
      if (und->getUsedNamespaces() && visitedDict.find(key)==0)
      {
        visitedDict.insert(key,(void *)0x08);

        if (accessibleViaUsingNamespace(und->getUsedNamespaces(),fileScope,item,explicitScopePart))
        {
          //printf("] found it via recursion\n");
          return TRUE;
        }

        visitedDict.remove(key);
      }
      //printf("] Try via used namespace done\n");
    }
  }
  return FALSE;
}


/* Returns the "distance" (=number of levels up) from item to scope, or -1
 * if item in not inside scope. 
 */
int isAccessibleFrom(Definition *scope,FileDef *fileScope,Definition *item)
{
  //printf("<isAccesibleFrom(scope=%s,item=%s itemScope=%s)\n",
  //    scope->name().data(),item->name().data(),item->getOuterScope()->name().data());

  QCString key(40);
  key.sprintf("%p:%p:%p",scope,fileScope,item);
  static QDict<void> visitedDict;
  if (visitedDict.find(key)) 
  {
    //printf("> already found\n");
    return -1; // already looked at this
  }
  visitedDict.insert(key,(void *)0x8);

  int result=0; // assume we found it
  int i;

  Definition *itemScope=item->getOuterScope();

  if ( 
      itemScope==scope ||                                                  // same thing
      (item->definitionType()==Definition::TypeMember &&                   // a member
       itemScope && itemScope->definitionType()==Definition::TypeClass  && // of a class
       scope->definitionType()==Definition::TypeClass &&                   // accessible
       ((ClassDef*)scope)->isAccessibleMember((MemberDef *)item)           // from scope
      ) ||
      (item->definitionType()==Definition::TypeClass &&                    // a nested class
       itemScope && itemScope->definitionType()==Definition::TypeClass &&  // inside a base 
       scope->definitionType()==Definition::TypeClass &&                   // class of scope
       ((ClassDef*)scope)->isBaseClass((ClassDef*)itemScope,TRUE)          
      )
     ) 
  {
    //printf("> found it\n");
  }
  else if (scope==Doxygen::globalScope)
  {
    if (fileScope)
    {
      SDict<Definition> *cl = fileScope->getUsedClasses();
      if (accessibleViaUsingClass(cl,fileScope,item)) 
      {
        //printf("> found via used class\n");
        goto done;
      }
      NamespaceSDict *nl = fileScope->getUsedNamespaces();
      if (accessibleViaUsingNamespace(nl,fileScope,item)) 
      {
        //printf("> found via used namespace\n");
        goto done;
      }
    }
    //printf("> reached global scope\n");
    result=-1; // not found in path to globalScope
  }
  else // keep searching
  {
    // check if scope is a namespace, which is using other classes and namespaces
    if (scope->definitionType()==Definition::TypeNamespace)
    {
      NamespaceDef *nscope = (NamespaceDef*)scope;
      //printf("  %s is namespace with %d used classes\n",nscope->name().data(),nscope->getUsedClasses());
      SDict<Definition> *cl = nscope->getUsedClasses();
      if (accessibleViaUsingClass(cl,fileScope,item)) 
      {
        //printf("> found via used class\n");
        goto done;
      }
      NamespaceSDict *nl = nscope->getUsedNamespaces();
      if (accessibleViaUsingNamespace(nl,fileScope,item)) 
      {
        //printf("> found via used namespace\n");
        goto done;
      }
    }
    // repeat for the parent scope
    i=isAccessibleFrom(scope->getOuterScope(),fileScope,item);
    //printf("> result=%d\n",i);
    result= (i==-1) ? -1 : i+2;
  }
done:
  visitedDict.remove(key);
  //Doxygen::lookupCache.insert(key,new int(result));
  return result;
}


/* Returns the "distance" (=number of levels up) from item to scope, or -1
 * if item in not in this scope. The explicitScopePart limits the search
 * to scopes that match \a scope (or its parent scope(s)) plus the explicit part.
 * Example:
 *
 * class A { public: class I {}; };
 * class B { public: class J {}; };
 *
 * - Looking for item=='J' inside scope=='B' will return 0.
 * - Looking for item=='I' inside scope=='B' will return -1 
 *   (as it is not found in B nor in the global scope).
 * - Looking for item=='A::I' inside scope=='B', first the match B::A::I is tried but 
 *   not found and then A::I is searched in the global scope, which matches and 
 *   thus the result is 1.
 */
int isAccessibleFromWithExpScope(Definition *scope,FileDef *fileScope,
                     Definition *item,const QCString &explicitScopePart)
{
  if (explicitScopePart.isEmpty())
  {
    // handle degenerate case where there is no explicit scope.
    return isAccessibleFrom(scope,fileScope,item);
  }

  QCString key(40+explicitScopePart.length());
  key.sprintf("%p:%p:%p:%s",scope,fileScope,item,explicitScopePart.data());
  static QDict<void> visitedDict;
  if (visitedDict.find(key)) 
  {
    //printf("Already visited!\n");
    return -1; // already looked at this
  }
  visitedDict.insert(key,(void *)0x8);

  //printf("  <isAccessibleFromWithExpScope(%s,%s,%s)\n",scope?scope->name().data():"<global>",
  //                                      item?item->name().data():"<none>",
  //                                      explicitScopePart.data());
  int result=0; // assume we found it
  Definition *newScope = followPath(scope,fileScope,explicitScopePart);
  if (newScope)  // explicitScope is inside scope => newScope is the result
  {
    Definition *itemScope = item->getOuterScope();
    //printf("    scope traversal successful %s<->%s!\n",itemScope->name().data(),newScope->name().data());
    //if (newScope && newScope->definitionType()==Definition::TypeClass)
    //{
    //  ClassDef *cd = (ClassDef *)newScope;
    //  printf("---> Class %s: bases=%p\n",cd->name().data(),cd->baseClasses());
    //}
    if (itemScope==newScope)  // exact match of scopes => distance==0
    {
      //printf("> found it\n");
    }
    else if (itemScope && newScope &&
             itemScope->definitionType()==Definition::TypeClass &&
             newScope->definitionType()==Definition::TypeClass &&
             ((ClassDef*)newScope)->isBaseClass((ClassDef*)itemScope,TRUE,0)
            )
    {
      // inheritance is also ok. Example: looking for B::I, where 
      // class A { public: class I {} };
      // class B : public A {}
      // but looking for B::I, where
      // class A { public: class I {} };
      // class B { public: class I {} };
      // will find A::I, so we still prefer a direct match and give this one a distance of 1
      result=1;

      //printf("scope(%s) is base class of newScope(%s)\n",
      //    scope->name().data(),newScope->name().data());
    }
    else
    {
      int i=-1;
      if (newScope->definitionType()==Definition::TypeNamespace)
      {
        g_visitedNamespaces.insert(newScope->name(),newScope);
        // this part deals with the case where item is a class
        // A::B::C but is explicit referenced as A::C, where B is imported
        // in A via a using directive.
        //printf("newScope is a namespace: %s!\n",newScope->name().data());
        NamespaceDef *nscope = (NamespaceDef*)newScope;
        SDict<Definition> *cl = nscope->getUsedClasses();
        if (cl)
        {
          SDict<Definition>::Iterator cli(*cl);
          Definition *cd;
          for (cli.toFirst();(cd=cli.current());++cli)
          {
            //printf("Trying for class %s\n",cd->name().data());
            if (cd==item)
            {
              //printf("> class is used in this scope\n");
              goto done;
            }
          }
        }
        NamespaceSDict *nl = nscope->getUsedNamespaces();
        if (nl)
        {
          NamespaceSDict::Iterator nli(*nl);
          NamespaceDef *nd;
          for (nli.toFirst();(nd=nli.current());++nli)
          {
            if (g_visitedNamespaces.find(nd->name())==0)
            {
              //printf("Trying for namespace %s\n",nd->name().data());
              i = isAccessibleFromWithExpScope(scope,fileScope,item,nd->name());
              if (i!=-1)
              {
                //printf("> found via explicit scope of used namespace\n");
                goto done;
              }
            }
          }
        }
      }
      // repeat for the parent scope
      if (scope!=Doxygen::globalScope)
      {
        i = isAccessibleFromWithExpScope(scope->getOuterScope(),fileScope,
            item,explicitScopePart);
      }
      //printf("  | result=%d\n",i);
      result = (i==-1) ? -1 : i+2;
    }
  }
  else // failed to resolve explicitScope
  {
    //printf("    failed to resolve: scope=%s\n",scope->name().data());
    if (scope->definitionType()==Definition::TypeNamespace)
    {
      NamespaceDef *nscope = (NamespaceDef*)scope;
      NamespaceSDict *nl = nscope->getUsedNamespaces();
      if (accessibleViaUsingNamespace(nl,fileScope,item,explicitScopePart)) 
      {
        //printf("> found in used namespace\n");
        goto done;
      }
    }
    if (scope==Doxygen::globalScope)
    {
      if (fileScope)
      {
        NamespaceSDict *nl = fileScope->getUsedNamespaces();
        if (accessibleViaUsingNamespace(nl,fileScope,item,explicitScopePart)) 
        {
          //printf("> found in used namespace\n");
          goto done;
        }
      }
      //printf("> not found\n");
      result=-1;
    }
    else // continue by looking into the parent scope
    {
      int i=isAccessibleFromWithExpScope(scope->getOuterScope(),fileScope,
          item,explicitScopePart);
      //printf("> result=%d\n",i);
      result= (i==-1) ? -1 : i+2;
    }
  }
done:
  //printf("  > result=%d\n",result);
  visitedDict.remove(key);
  //Doxygen::lookupCache.insert(key,new int(result));
  return result;
}

int computeQualifiedIndex(const QCString &name)
{
  int i = name.find('<');
  return name.findRev("::",i==-1 ? name.length() : i);
}

static void getResolvedSymbol(Definition *scope,
                       FileDef *fileScope,
                       Definition *d, 
                       const QCString &explicitScopePart,
                       ArgumentList *actTemplParams,
                       int &minDistance,
                       ClassDef *&bestMatch,
                       MemberDef *&bestTypedef,
                       QCString &bestTemplSpec,
                       QCString &bestResolvedType
                      )
{
  //printf("  => found type %x name=%s d=%p\n",
  //       d->definitionType(),d->name().data(),d);

  // only look at classes and members that are enums or typedefs
  if (d->definitionType()==Definition::TypeClass ||
      (d->definitionType()==Definition::TypeMember && 
       (((MemberDef*)d)->isTypedef() || ((MemberDef*)d)->isEnumerate()) 
      )
     )
  {
    g_visitedNamespaces.clear();
    // test accessibility of definition within scope.
    int distance = isAccessibleFromWithExpScope(scope,fileScope,d,explicitScopePart);
    //printf("  %s; distance %s (%p) is %d\n",scope->name().data(),d->name().data(),d,distance);
    if (distance!=-1) // definition is accessible
    {
      // see if we are dealing with a class or a typedef
      if (d->definitionType()==Definition::TypeClass) // d is a class
      {
        ClassDef *cd = (ClassDef *)d;
        //printf("cd=%s\n",cd->name().data());
        if (!cd->isTemplateArgument()) // skip classes that
          // are only there to 
          // represent a template 
          // argument
        {
          //printf("is not a templ arg\n");
          if (distance<minDistance) // found a definition that is "closer"
          {
            minDistance=distance;
            bestMatch = cd; 
            bestTypedef = 0;
            bestTemplSpec.resize(0);
            bestResolvedType = cd->qualifiedName();
          }
          else if (distance==minDistance &&
              fileScope && bestMatch &&
              fileScope->getUsedNamespaces() && 
              d->getOuterScope()->definitionType()==Definition::TypeNamespace && 
              bestMatch->getOuterScope()==Doxygen::globalScope
              )
          {
            // in case the distance is equal it could be that a class X
            // is defined in a namespace and in the global scope. When searched
            // in the global scope the distance is 0 in both cases. We have
            // to choose one of the definitions: we choose the one in the
            // namespace if the fileScope imports namespaces and the definition
            // found was in a namespace while the best match so far isn't.
            // Just a non-perfect heuristic but it could help in some situations
            // (kdecore code is an example).
            minDistance=distance;
            bestMatch = cd; 
            bestTypedef = 0;
            bestTemplSpec.resize(0);
            bestResolvedType = cd->qualifiedName();
          }
        }
        else
        {
          //printf("  is a template argument!\n");
        }
      }
      else if (d->definitionType()==Definition::TypeMember)
      {
        MemberDef *md = (MemberDef *)d;
        //printf("  member isTypedef()=%d\n",md->isTypedef());
        if (md->isTypedef()) // d is a typedef
        {
          QCString args=md->argsString();
          if (args.isEmpty()) // do not expand "typedef t a[4];"
          {
            //printf("    found typedef!\n");

            // we found a symbol at this distance, but if it didn't
            // resolve to a class, we still have to make sure that
            // something at a greater distance does not match, since
            // that symbol is hidden by this one.
            if (distance<minDistance)
            {
              QCString spec;
              QCString type;
              minDistance=distance;
              MemberDef *enumType = 0;
              ClassDef *cd = newResolveTypedef(fileScope,md,&enumType,&spec,&type,actTemplParams);
              if (cd)  // type resolves to a class
              {
                //printf("      bestTypeDef=%p spec=%s type=%s\n",md,spec.data(),type.data());
                bestMatch = cd;
                bestTypedef = md;
                bestTemplSpec = spec;
                bestResolvedType = type;
              }
              else if (enumType) // type resolves to a enum
              {
                //printf("      is enum\n");
                bestMatch = 0;
                bestTypedef = enumType;
                bestTemplSpec = "";
                bestResolvedType = enumType->qualifiedName();
              }
              else if (md->isReference()) // external reference
              {
                bestMatch = 0;
                bestTypedef = md;
                bestTemplSpec = spec;
                bestResolvedType = type;
              }
              else
              {
                bestMatch = 0;
                bestTypedef = md;
                bestTemplSpec.resize(0);
                bestResolvedType.resize(0);
                //printf("      no match\n");
              }
            }
            else
            {
              //printf("      not the best match %d min=%d\n",distance,minDistance);
            }
          }
          else
          {
            //printf("     not a simple typedef\n")
          }
        }
        else if (md->isEnumerate())
        {
          if (distance<minDistance)
          {
            minDistance=distance;
            bestMatch = 0;
            bestTypedef = md;
            bestTemplSpec = "";
            bestResolvedType = md->qualifiedName();
          }
        }
      }
    } // if definition accessible
    else
    {
      //printf("  Not accessible!\n");
    }
  } // if definition is a class or member
  //printf("  bestMatch=%p bestResolvedType=%s\n",bestMatch,bestResolvedType.data());
}

/* Find the fully qualified class name referred to by the input class
 * or typedef name against the input scope.
 * Loops through scope and each of its parent scopes looking for a
 * match against the input name. Can recursively call itself when 
 * resolving typedefs.
 */
ClassDef *getResolvedClassRec(Definition *scope,
    FileDef *fileScope,
    const char *n,
    MemberDef **pTypeDef,
    QCString *pTemplSpec,
    QCString *pResolvedType
    )
{
  //printf("[getResolvedClassRec(%s,%s)\n",scope?scope->name().data():"<global>",n);
  QCString name;
  QCString explicitScopePart;
  QCString strippedTemplateParams;
  name=stripTemplateSpecifiersFromScope
                     (removeRedundantWhiteSpace(n),TRUE,
                      &strippedTemplateParams);
  ArgumentList actTemplParams;
  if (!strippedTemplateParams.isEmpty()) // template part that was stripped
  {
    stringToArgumentList(strippedTemplateParams,&actTemplParams);
  }

  int qualifierIndex = computeQualifiedIndex(name);
  //printf("name=%s qualifierIndex=%d\n",name.data(),qualifierIndex);
  if (qualifierIndex!=-1) // qualified name
  {
    // split off the explicit scope part
    explicitScopePart=name.left(qualifierIndex);
    // todo: improve namespace alias substitution
    replaceNamespaceAliases(explicitScopePart,explicitScopePart.length());
    name=name.mid(qualifierIndex+2);
  }

  if (name.isEmpty()) 
  {
    //printf("] empty name\n");
    return 0; // empty name
  }

  //printf("Looking for symbol %s\n",name.data());
  DefinitionIntf *di = Doxygen::symbolMap->find(name);
  if (di==0) 
  {
    di = Doxygen::symbolMap->find(name+"-g");
    if (di==0)
    {
      di = Doxygen::symbolMap->find(name+"-p");
      if (di==0)
      {
        //printf("no such symbol!\n");
        return 0;
      }
    }
  }
  //printf("found symbol!\n");

  bool hasUsingStatements = 
    (fileScope && ((fileScope->getUsedNamespaces() && 
                    fileScope->getUsedNamespaces()->count()>0) ||
                   (fileScope->getUsedClasses() && 
                    fileScope->getUsedClasses()->count()>0)) 
    );
  //printf("hasUsingStatements=%d\n",hasUsingStatements);
  // Since it is often the case that the same name is searched in the same
  // scope over an over again (especially for the linked source code generation)
  // we use a cache to collect previous results. This is possible since the
  // result of a lookup is deterministic. As the key we use the concatenated
  // scope, the name to search for and the explicit scope prefix. The speedup
  // achieved by this simple cache can be enormous.
  int scopeNameLen = scope->name().length()+1;
  int nameLen = name.length()+1;
  int explicitPartLen = explicitScopePart.length();
  int fileScopeLen = hasUsingStatements ? 1+fileScope->absFilePath().length() : 0;

  // below is a more efficient coding of
  // QCString key=scope->name()+"+"+name+"+"+explicitScopePart;
  QCString key(scopeNameLen+nameLen+explicitPartLen+fileScopeLen+1);
  char *p=key.data();
  qstrcpy(p,scope->name()); *(p+scopeNameLen-1)='+';
  p+=scopeNameLen;
  qstrcpy(p,name); *(p+nameLen-1)='+';
  p+=nameLen;
  qstrcpy(p,explicitScopePart);
  p+=explicitPartLen;

  // if a file scope is given and it contains using statements we should
  // also use the file part in the key (as a class name can be in
  // two different namespaces and a using statement in a file can select 
  // one of them).
  if (hasUsingStatements)
  {
    // below is a more efficient coding of
    // key+="+"+fileScope->name();
    *p++='+';
    qstrcpy(p,fileScope->absFilePath());
    p+=fileScopeLen-1;
  }
  *p='\0';

  LookupInfo *pval=Doxygen::lookupCache.find(key);
  //printf("Searching for %s result=%p\n",key.data(),pval);
  if (pval)
  {
    //printf("LookupInfo %p %p '%s' %p\n", 
    //    pval->classDef, pval->typeDef, pval->templSpec.data(), 
    //    pval->resolvedType.data()); 
    if (pTemplSpec)    *pTemplSpec=pval->templSpec;
    if (pTypeDef)      *pTypeDef=pval->typeDef;
    if (pResolvedType) *pResolvedType=pval->resolvedType;
    //printf("] cachedMatch=%s\n",
    //    pval->classDef?pval->classDef->name().data():"<none>");
    //if (pTemplSpec) 
    //  printf("templSpec=%s\n",pTemplSpec->data());
    return pval->classDef; 
  }
  else // not found yet; we already add a 0 to avoid the possibility of 
    // endless recursion.
  {
    Doxygen::lookupCache.insert(key,new LookupInfo);
  }

  ClassDef *bestMatch=0;
  MemberDef *bestTypedef=0;
  QCString bestTemplSpec;
  QCString bestResolvedType;
  int minDistance=10000; // init at "infinite"

  if (di->definitionType()==DefinitionIntf::TypeSymbolList) // not a unique name
  {
    //printf("  name is not unique\n");
    DefinitionListIterator dli(*(DefinitionList*)di);
    Definition *d;
    int count=0;
    for (dli.toFirst();(d=dli.current());++dli,++count) // foreach definition
    {
      getResolvedSymbol(scope,fileScope,d,explicitScopePart,&actTemplParams,
                        minDistance,bestMatch,bestTypedef,bestTemplSpec,
                        bestResolvedType);
    }
  }
  else // unique name
  {
    //printf("  name is unique\n");
    Definition *d = (Definition *)di;
    getResolvedSymbol(scope,fileScope,d,explicitScopePart,&actTemplParams,
                      minDistance,bestMatch,bestTypedef,bestTemplSpec,
                      bestResolvedType);
  }

  if (pTypeDef) 
  {
    *pTypeDef = bestTypedef;
  }
  if (pTemplSpec)
  {
    *pTemplSpec = bestTemplSpec;
  }
  if (pResolvedType)
  {
    *pResolvedType = bestResolvedType;
  }
  //printf("getResolvedClassRec: bestMatch=%p pval->resolvedType=%s\n",
  //    bestMatch,bestResolvedType.data());

  pval=Doxygen::lookupCache.find(key);
  if (pval)
  {
    pval->classDef     = bestMatch;
    pval->typeDef      = bestTypedef;
    pval->templSpec    = bestTemplSpec;
    pval->resolvedType = bestResolvedType;
  }
  else
  {
    Doxygen::lookupCache.insert(key,new LookupInfo(bestMatch,bestTypedef,bestTemplSpec,bestResolvedType));
  }
  //printf("] bestMatch=%s distance=%d\n",
  //    bestMatch?bestMatch->name().data():"<none>",minDistance);
  //if (pTemplSpec) 
  //  printf("templSpec=%s\n",pTemplSpec->data());
  return bestMatch;
}

/* Find the fully qualified class name referred to by the input class
 * or typedef name against the input scope.
 * Loops through scope and each of its parent scopes looking for a
 * match against the input name. 
 */
ClassDef *getResolvedClass(Definition *scope,
    FileDef *fileScope,
    const char *n,
    MemberDef **pTypeDef,
    QCString *pTemplSpec,
    bool mayBeUnlinkable,
    bool mayBeHidden,
    QCString *pResolvedType
    )
{
  g_resolvedTypedefs.clear();
  if (scope==0 ||
      (scope->definitionType()!=Definition::TypeClass && 
       scope->definitionType()!=Definition::TypeNamespace
      ) ||
      (fileScope && fileScope->isJava() && QCString(n).find("::")!=-1)
     )
  {
    scope=Doxygen::globalScope;
  }
  //printf("------------ getResolvedClass(scope=%s,file=%s,name=%s,mayUnlinkable=%d)\n",
  //    scope?scope->name().data():"<global>",
  //    fileScope?fileScope->name().data():"<none>",
  //    n,
  //    mayBeUnlinkable
  //   );
  ClassDef *result = getResolvedClassRec(scope,fileScope,n,pTypeDef,pTemplSpec,pResolvedType);
  if (!mayBeUnlinkable && result && !result->isLinkable()) 
  {
    if (!mayBeHidden || !result->isHidden())
    {
      result=0; // don't link to artificial/hidden classes unless explicitly allowed
    }
  }
  //printf("getResolvedClass(%s,%s)=%s\n",scope?scope->name().data():"<global>",
  //                                  n,result?result->name().data():"<none>");
  return result;
}

//-------------------------------------------------------------------------
//-------------------------------------------------------------------------
//-------------------------------------------------------------------------
//-------------------------------------------------------------------------

static bool findOperator(const QCString &s,int i)
{
  int b = s.findRev("operator",i);
  if (b==-1) return FALSE; // not found
  b+=8;
  while (b<i) // check if there are only spaces in between 
    // the operator and the >
  {
    if (!isspace((uchar)s.at(b))) return FALSE;
    b++;
  }
  return TRUE;
}

static bool findOperator2(const QCString &s,int i)
{
  int b = s.findRev("operator",i);
  if (b==-1) return FALSE; // not found
  b+=8;
  while (b<i) // check if there are only non-ascii
              // characters in front of the operator
  {
    if (isId((uchar)s.at(b))) return FALSE;
    b++;
  }
  return TRUE;
}

static const char constScope[]   = { 'c', 'o', 'n', 's', 't', ':' };
static const char virtualScope[] = { 'v', 'i', 'r', 't', 'u', 'a', 'l', ':' };


class StrBuf
{
  public:
    StrBuf() : str(0), pos(0), len(0) {}
   ~StrBuf()          { free(str); str=0; pos=0; len=0; }
    void clear()      { pos=0; }
    void addChar(char c)  { if (pos>=len) { len+=1024; str = (char*)realloc(str,len); } 
                        str[pos++]=c; 
                      }
    void addStr(const char *s) {
                        int l=strlen(s);
                        if (pos+l>=len) { len+=l+1024; str = (char*)realloc(str,len); }
                        strcpy(&str[pos],s);
                        pos+=l;
                      }
    const char *get() { return str; }
    int getPos() const   { return pos; }
    char at(int i) const   { return str[i]; }
  private:
    char *str;
    int pos;
    int len;
};

// Note: this function is not reentrant due to the use of static buffer!
QCString removeRedundantWhiteSpace(const QCString &s)
{
  static bool cliSupport = Config_getBool("CPP_CLI_SUPPORT");
  if (s.isEmpty()) return s;
  static StrBuf strBuf;
  //int resultLen = 1024;
  //int resultPos = 0;
  //QCString result(resultLen);
  // we use strBuf.addChar(c) instead of result+=c to 
  // improve the performance of this function
  strBuf.clear();
  uint i;
  uint l=s.length();
  uint csp=0;
  uint vsp=0;
  for (i=0;i<l;i++)
  {
nextChar:
    char c=s.at(i);

    // search for "const"
    if (csp<6 && c==constScope[csp] && // character matches substring "const"
         (csp>0 ||                     // if it is the first character 
          i==0  ||                     // the previous may not be a digit
          !isId(s.at(i-1))
         )
       )
      csp++; 
    else // reset counter
      csp=0;

    // search for "virtual"
    if (vsp<8 && c==virtualScope[vsp] && // character matches substring "virtual"
         (vsp>0 ||                       // if it is the first character
          i==0  ||                       // the previous may not be a digit 
          !isId(s.at(i-1))
         )
       )
      vsp++;
    else // reset counter
      vsp=0;

    if (c=='"') // quoted string
    {
      i++;
      strBuf.addChar(c);
      while (i<l)
      {
        char cc=s.at(i);
        strBuf.addChar(cc);
        if (cc=='\\') // escaped character
        { 
          strBuf.addChar(s.at(i+1));
          i+=2; 
        }
        else if (cc=='"') // end of string
        { i++; goto nextChar; }
        else // any other character
        { i++; }
      }
    }
    else if (i<l-2 && c=='<' &&  // current char is a <
        (isId(s.at(i+1)) || isspace((uchar)s.at(i+1))) && // next char is an id char or space
        (i<8 || !findOperator(s,i)) // string in front is not "operator"
        )
    {
      strBuf.addChar('<');
      strBuf.addChar(' ');
    }
    else if (i>0 && c=='>' && // current char is a >
        (isId(s.at(i-1)) || isspace((uchar)s.at(i-1)) || s.at(i-1)=='*' || s.at(i-1)=='&') && // prev char is an id char or space
        (i<8 || !findOperator(s,i)) // string in front is not "operator"
        )
    {
      strBuf.addChar(' ');
      strBuf.addChar('>');
    }
    else if (i>0 && c==',' && !isspace((uchar)s.at(i-1))
        && ((i<l-1 && isId(s.at(i+1)))
          || (i<l-2 && s.at(i+1)=='$' && isId(s.at(i+2)))  // for PHP
          || (i<l-3 && s.at(i+1)=='&' && s.at(i+2)=='$' && isId(s.at(i+3)))))  // for PHP
    {
      strBuf.addChar(',');
      strBuf.addChar(' ');
    }
    else if (i>0 && 
         ((isId(s.at(i)) && s.at(i-1)==')') || 
          (s.at(i)=='\''  && s.at(i-1)==' ')
         )
        )
    {
      strBuf.addChar(' ');
      strBuf.addChar(s.at(i));
    }
    else if (c=='t' && csp==5 /*&& (i<5 || !isId(s.at(i-5)))*/ &&
             !(isId(s.at(i+1)) /*|| s.at(i+1)==' '*/ || 
               s.at(i+1)==')' || 
               s.at(i+1)==',' || 
               s.at(i+1)=='\0'
              )
            ) 
      // prevent const ::A from being converted to const::A
    {
      strBuf.addChar('t');
      strBuf.addChar(' ');
      if (s.at(i+1)==' ') i++;
      csp=0;
    }
    else if (c==':' && csp==6 /*&& (i<6 || !isId(s.at(i-6)))*/) 
      // replace const::A by const ::A
    {
      strBuf.addChar(' ');
      strBuf.addChar(':');
      csp=0;
    }
    else if (c=='l' && vsp==7 /*&& (i<7 || !isId(s.at(i-7)))*/ &&
             !(isId(s.at(i+1)) /*|| s.at(i+1)==' '*/ || 
               s.at(i+1)==')' || 
               s.at(i+1)==',' || 
               s.at(i+1)=='\0'
              )
            ) 
      // prevent virtual ::A from being converted to virtual::A
    {
      strBuf.addChar('l');
      strBuf.addChar(' ');
      if (s.at(i+1)==' ') i++;
      vsp=0;
    }
    else if (c==':' && vsp==8 /*&& (i<8 || !isId(s.at(i-8)))*/) 
      // replace virtual::A by virtual ::A
    {
      strBuf.addChar(' ');
      strBuf.addChar(':');
      vsp=0;
    }
    else if (!isspace((uchar)c) || // not a space
        ( i>0 && i<l-1 &&          // internal character
          (isId(s.at(i-1)) || s.at(i-1)==')' || s.at(i-1)==',' || s.at(i-1)=='>' || s.at(i-1)==']')
          && (isId(s.at(i+1)) || (i<l-2 && s.at(i+1)=='$' && isId(s.at(i+2)))
            || (i<l-3 && s.at(i+1)=='&' && s.at(i+2)=='$' && isId(s.at(i+3))))
        ) 
        )
    {
      if (c=='*' || c=='&' || c=='@' || c=='$')
      {  
        //uint rl=result.length();
        uint rl=strBuf.getPos();
        if ((rl>0 && (isId(strBuf.at(rl-1)) || strBuf.at(rl-1)=='>')) &&
            ((c!='*' && c!='&') || !findOperator2(s,i)) // avoid splitting operator* and operator->* and operator&
           ) 
        {
          strBuf.addChar(' ');
        }
      }
      strBuf.addChar(c);
      if (cliSupport &&
          (c=='^' || c=='%') && i>1 && isId(s.at(i-1)) &&
          !findOperator(s,i)
         ) 
      {
        strBuf.addChar(' '); // C++/CLI: Type^ name and Type% name
      }
    }
  }
  //printf("removeRedundantWhiteSpace(`%s')=`%s'\n",s.data(),result.data());
  strBuf.addChar(0);
  //result.resize(resultPos);
  return strBuf.get();
}  

bool rightScopeMatch(const QCString &scope, const QCString &name)
{
  return (name==scope || // equal 
      (scope.right(name.length())==name && // substring 
       scope.at(scope.length()-name.length()-1)==':' // scope
      ) 
      );
}

bool leftScopeMatch(const QCString &scope, const QCString &name)
{
  return (name==scope || // equal 
      (scope.left(name.length())==name && // substring 
       scope.at(name.length())==':' // scope
      ) 
      );
}


void linkifyText(const TextGeneratorIntf &out,Definition *scope,
    FileDef *fileScope,const char *,
    const char *text, bool autoBreak,bool external,
    bool keepSpaces)
{
  //printf("`%s'\n",text);
  static QRegExp regExp("[a-z_A-Z\\x80-\\xFF][~!a-z_A-Z0-9.:\\x80-\\xFF]*");
  static QRegExp regExpSplit("(?!:),");
  QCString txtStr=text;
  int strLen = txtStr.length();
  //printf("linkifyText scope=%s fileScope=%s strtxt=%s strlen=%d\n",
  //    scope?scope->name().data():"<none>",
  //    fileScope?fileScope->name().data():"<none>",
  //    txtStr.data(),strLen);
  int matchLen;
  int index=0;
  int newIndex;
  int skipIndex=0;
  int floatingIndex=0;
  if (strLen==0) return;
  // read a word from the text string
  while ((newIndex=regExp.match(txtStr,index,&matchLen))!=-1 && 
      (newIndex==0 || !(txtStr.at(newIndex-1)>='0' && txtStr.at(newIndex-1)<='9')) // avoid matching part of hex numbers
      )
  {
    // add non-word part to the result
    floatingIndex+=newIndex-skipIndex+matchLen;
    bool insideString=FALSE; 
    int i;
    for (i=index;i<newIndex;i++) 
    { 
      if (txtStr.at(i)=='"') insideString=!insideString; 
    }

    //printf("floatingIndex=%d strlen=%d autoBreak=%d\n",floatingIndex,strLen,autoBreak);
    if (strLen>35 && floatingIndex>30 && autoBreak) // try to insert a split point
    {
      QCString splitText = txtStr.mid(skipIndex,newIndex-skipIndex);
      int splitLength = splitText.length();
      int offset=1;
      i=splitText.find(regExpSplit,0);
      if (i==-1) { i=splitText.find('<'); if (i!=-1) offset=0; }
      if (i==-1) i=splitText.find('>');
      if (i==-1) i=splitText.find(' ');
      //printf("splitText=[%s] len=%d i=%d offset=%d\n",splitText.data(),splitLength,i,offset);
      if (i!=-1) // add a link-break at i in case of Html output
      {
        out.writeString(splitText.left(i+offset),keepSpaces);
        out.writeBreak();
        out.writeString(splitText.right(splitLength-i-offset),keepSpaces);
        floatingIndex=splitLength-i-offset+matchLen;
      } 
      else
      {
        out.writeString(splitText,keepSpaces); 
      }
    }
    else
    {
      //ol.docify(txtStr.mid(skipIndex,newIndex-skipIndex)); 
      out.writeString(txtStr.mid(skipIndex,newIndex-skipIndex),keepSpaces); 
    }
    // get word from string
    QCString word=txtStr.mid(newIndex,matchLen);
    QCString matchWord = substitute(word,".","::");
    //printf("linkifyText word=%s matchWord=%s scope=%s\n",
    //    word.data(),matchWord.data(),scope?scope->name().data():"<none>");
    bool found=FALSE;
    if (!insideString)
    {
      ClassDef     *cd=0;
      FileDef      *fd=0;
      MemberDef    *md=0;
      NamespaceDef *nd=0;
      GroupDef     *gd=0;
      //printf("** Match word '%s'\n",matchWord.data());

      MemberDef *typeDef=0;
      if ((cd=getResolvedClass(scope,fileScope,matchWord,&typeDef))) 
      {
        //printf("Found class %s\n",cd->name().data());
        // add link to the result
        if (external ? cd->isLinkable() : cd->isLinkableInProject())
        {
          out.writeLink(cd->getReference(),cd->getOutputFileBase(),0,word);
          found=TRUE;
        }
      }
      else if (typeDef)
      {
        //printf("Found typedef %s\n",typeDef->name().data());
        if (external ? typeDef->isLinkable() : typeDef->isLinkableInProject())
        {
          out.writeLink(typeDef->getReference(),
              typeDef->getOutputFileBase(),
              typeDef->anchor(),
              word);
          found=TRUE;
        }
      }
      else if ((cd=getClass(matchWord+"-p"))) // search for Obj-C protocols as well
      {
        // add link to the result
        if (external ? cd->isLinkable() : cd->isLinkableInProject())
        {
          out.writeLink(cd->getReference(),cd->getOutputFileBase(),0,word);
          found=TRUE;
        }
      }
      else if ((cd=getClass(matchWord+"-g"))) // C# generic as well
      {
        // add link to the result
        if (external ? cd->isLinkable() : cd->isLinkableInProject())
        {
          out.writeLink(cd->getReference(),cd->getOutputFileBase(),0,word);
          found=TRUE;
        }
      }
      else
      {
        //printf("   -> nothing\n");
      }

      QCString scopeName;
      if (scope && 
          (scope->definitionType()==Definition::TypeClass || 
           scope->definitionType()==Definition::TypeNamespace
          ) 
         )
      {
        scopeName=scope->name();
      }
      //printf("ScopeName=%s\n",scopeName.data());
      //if (!found) printf("Trying to link %s in %s\n",word.data(),scopeName.data()); 
      if (!found && 
          getDefs(scopeName,matchWord,0,md,cd,fd,nd,gd) && 
          (md->isTypedef() || md->isEnumerate() || 
           md->isReference() || md->isVariable()
          ) && 
          (external ? md->isLinkable() : md->isLinkableInProject()) 
         )
      {
        //printf("Found ref scope=%s\n",d?d->name().data():"<global>");
        //ol.writeObjectLink(d->getReference(),d->getOutputFileBase(),
        //                       md->anchor(),word);
        out.writeLink(md->getReference(),md->getOutputFileBase(),
            md->anchor(),word);
        found=TRUE;
      }
    }

    if (!found) // add word to the result
    {
      out.writeString(word,keepSpaces);
    }
    // set next start point in the string
    //printf("index=%d/%d\n",index,txtStr.length());
    skipIndex=index=newIndex+matchLen;
  }
  // add last part of the string to the result.
  //ol.docify(txtStr.right(txtStr.length()-skipIndex));
  out.writeString(txtStr.right(txtStr.length()-skipIndex),keepSpaces);
}


void writeExample(OutputList &ol,ExampleSDict *ed)
{
  QCString exampleLine=theTranslator->trWriteList(ed->count());

  //bool latexEnabled = ol.isEnabled(OutputGenerator::Latex);
  //bool manEnabled   = ol.isEnabled(OutputGenerator::Man);
  //bool htmlEnabled  = ol.isEnabled(OutputGenerator::Html);
  QRegExp marker("@[0-9]+");
  int index=0,newIndex,matchLen;
  // now replace all markers in inheritLine with links to the classes
  while ((newIndex=marker.match(exampleLine,index,&matchLen))!=-1)
  {
    bool ok;
    ol.parseText(exampleLine.mid(index,newIndex-index));
    uint entryIndex = exampleLine.mid(newIndex+1,matchLen-1).toUInt(&ok);
    Example *e=ed->at(entryIndex);
    if (ok && e) 
    {
      ol.pushGeneratorState();
      //if (latexEnabled) ol.disable(OutputGenerator::Latex);
      ol.disable(OutputGenerator::Latex);
      ol.disable(OutputGenerator::RTF);
      // link for Html / man
      //printf("writeObjectLink(file=%s)\n",e->file.data());
      ol.writeObjectLink(0,e->file,e->anchor,e->name);
      ol.popGeneratorState();

      ol.pushGeneratorState();
      //if (latexEnabled) ol.enable(OutputGenerator::Latex);
      ol.disable(OutputGenerator::Man);
      ol.disable(OutputGenerator::Html);
      // link for Latex / pdf with anchor because the sources
      // are not hyperlinked (not possible with a verbatim environment).
      ol.writeObjectLink(0,e->file,0,e->name);
      //if (manEnabled) ol.enable(OutputGenerator::Man);
      //if (htmlEnabled) ol.enable(OutputGenerator::Html);
      ol.popGeneratorState();
    }
    index=newIndex+matchLen;
  } 
  ol.parseText(exampleLine.right(exampleLine.length()-index));
  ol.writeString(".");
}


QCString argListToString(ArgumentList *al,bool useCanonicalType,bool showDefVals)
{
  QCString result;
  if (al==0) return result;
  Argument *a=al->first();
  result+="(";
  while (a)
  {
    QCString type1 = useCanonicalType && !a->canType.isEmpty() ? 
      a->canType : a->type;
    QCString type2;
    int i=type1.find(")("); // hack to deal with function pointers
    if (i!=-1)
    {
      type2=type1.mid(i);
      type1=type1.left(i);
    }
    if (!a->attrib.isEmpty())
    {
      result+=a->attrib+" ";
    }
    if (!a->name.isEmpty() || !a->array.isEmpty())
    {
      result+= type1+" "+a->name+type2+a->array;
    }
    else
    {
      result+= type1+type2;
    }
    if (!a->defval.isEmpty() && showDefVals)
    {
      result+="="+a->defval;
    }
    a = al->next();
    if (a) result+=", "; 
  }
  result+=")";
  if (al->constSpecifier) result+=" const";
  if (al->volatileSpecifier) result+=" volatile";
  return removeRedundantWhiteSpace(result);
}

QCString tempArgListToString(ArgumentList *al)
{
  QCString result;
  if (al==0) return result;
  result="<";
  Argument *a=al->first();
  while (a)
  {
    if (!a->name.isEmpty()) // add template argument name
    {
      result+=a->name;
    }
    else // extract name from type
    {
      int i=a->type.length()-1;
      while (i>=0 && isId(a->type.at(i))) i--;
      if (i>0)
      {
        result+=a->type.right(a->type.length()-i-1);
      }
      else // nothing found -> take whole name
      {
        result+=a->type;
      }
    }
    a=al->next();
    if (a) result+=", ";
  }
  result+=">";
  return removeRedundantWhiteSpace(result);
}


// compute the HTML anchors for a list of members
void setAnchors(ClassDef *cd,char id,MemberList *ml,int groupId)
{
  int count=0;
  if (ml==0) return;
  MemberListIterator mli(*ml);
  MemberDef *md;
  for (;(md=mli.current());++mli)
  {
    if (!md->isReference())
    {
      QCString anchor;
      if (groupId==-1)
        anchor.sprintf("%c%d",id,count++);
      else
        anchor.sprintf("%c%d_%d",id,groupId,count++);
      if (cd) anchor.prepend(escapeCharsInString(cd->name(),FALSE));
      md->setAnchor(anchor);
      //printf("setAnchors(): Member %s outputFileBase=%s anchor %s result %s\n",
      //    md->name().data(),md->getOutputFileBase().data(),anchor.data(),md->anchor().data());
    }
  }
}

//----------------------------------------------------------------------------

/*! takes the \a buf of the given length \a len and converts CR LF (DOS)
 * or CR (MAC) line ending to LF (Unix).  Returns the length of the
 * converted content (i.e. the same as \a len (Unix, MAC) or
 * smaller (DOS).
 */
int filterCRLF(char *buf,int len)
{
  int src = 0;    // source index
  int dest = 0;   // destination index
  char c;         // current character

  while (src<len)
  {
    c = buf[src++];            // Remember the processed character.
    if (c == '\r')             // CR to be solved (MAC, DOS)
    {
      c = '\n';                // each CR to LF
      if (src<len && buf[src] == '\n')
        ++src;                 // skip LF just after CR (DOS) 
    }
    else if ( c == '\0' && src<len-1) // filter out internal \0 characters, as it will confuse the parser
    {
      c = ' ';                 // turn into a space
    }
    buf[dest++] = c;           // copy the (modified) character to dest
  }
  return dest;                 // length of the valid part of the buf
}

static QCString getFilterFromList(const char *name,const QStrList &filterList,bool &found)
{
  found=FALSE;
  // compare the file name to the filter pattern list
  QStrListIterator sli(filterList);
  char* filterStr;
  for (sli.toFirst(); (filterStr = sli.current()); ++sli)
  {
    QCString fs = filterStr;
    int i_equals=fs.find('=');
    if (i_equals!=-1)
    {
      QCString filterPattern = fs.left(i_equals);
      QRegExp fpat(filterPattern,portable_fileSystemIsCaseSensitive(),TRUE); 
      if (fpat.match(name)!=-1) 
      {
        // found a match!
        QCString filterName = fs.mid(i_equals+1);
        if (filterName.find(' ')!=-1)
        { // add quotes if the name has spaces
          filterName="\""+filterName+"\"";
        }
        found=TRUE;
        return filterName;
      }
    }
  }

  // no match
  return "";
}

/*! looks for a filter for the file \a name.  Returns the name of the filter
 *  if there is a match for the file name, otherwise an empty string.
 *  In case \a inSourceCode is TRUE then first the source filter list is
 *  considered.
 */
QCString getFileFilter(const char* name,bool isSourceCode)
{
  // sanity check
  if (name==0) return "";

  QStrList& filterSrcList = Config_getList("FILTER_SOURCE_PATTERNS");
  QStrList& filterList    = Config_getList("FILTER_PATTERNS");

  QCString filterName;
  bool found=FALSE;
  if (isSourceCode && !filterSrcList.isEmpty())
  { // first look for source filter pattern list
    filterName = getFilterFromList(name,filterSrcList,found);
  }
  if (!found && filterName.isEmpty())
  { // then look for filter pattern list
    filterName = getFilterFromList(name,filterList,found);
  }
  if (!found)
  { // then use the generic input filter
    return Config_getString("INPUT_FILTER");
  }
  else
  {
    return filterName;
  }
}


QCString transcodeCharacterStringToUTF8(const QCString &input)
{
  bool error=FALSE;
  static QCString inputEncoding = Config_getString("INPUT_ENCODING");
  const char *outputEncoding = "UTF-8";
  if (inputEncoding.isEmpty() || qstricmp(inputEncoding,outputEncoding)==0) return input;
  int inputSize=input.length();
  int outputSize=inputSize*4+1;
  QCString output(outputSize);
  void *cd = portable_iconv_open(outputEncoding,inputEncoding);
  if (cd==(void *)(-1)) 
  {
    err("error: unsupported character conversion: '%s'->'%s'\n",
        inputEncoding.data(),outputEncoding);
    error=TRUE;
  }
  if (!error)
  {
    size_t iLeft=inputSize;
    size_t oLeft=outputSize;
    const char *inputPtr = input.data();
    char *outputPtr = output.data();
    if (!portable_iconv(cd, &inputPtr, &iLeft, &outputPtr, &oLeft))
    {
      outputSize-=oLeft;
      output.resize(outputSize+1);
      output.at(outputSize)='\0';
      //printf("iconv: input size=%d output size=%d\n[%s]\n",size,newSize,srcBuf.data());
    }
    else
    {
      err("error: failed to translate characters from %s to %s: check INPUT_ENCODING\ninput=[%s]\n",
          inputEncoding.data(),outputEncoding,input.data());
      error=TRUE;
    }
  }
  portable_iconv_close(cd);
  return error ? input : output;
}

/*! reads a file with name \a name and returns it as a string. If \a filter
 *  is TRUE the file will be filtered by any user specified input filter.
 *  If \a name is "-" the string will be read from standard input. 
 */
QCString fileToString(const char *name,bool filter,bool isSourceCode)
{
  if (name==0 || name[0]==0) return 0;
  QFile f;

  bool fileOpened=FALSE;
  if (name[0]=='-' && name[1]==0) // read from stdin
  {
    fileOpened=f.open(IO_ReadOnly,stdin);
    if (fileOpened)
    {
      const int bSize=4096;
      QCString contents(bSize);
      int totalSize=0;
      int size;
      while ((size=f.readBlock(contents.data()+totalSize,bSize))==bSize)
      {
        totalSize+=bSize;
        contents.resize(totalSize+bSize); 
      }
      totalSize = filterCRLF(contents.data(),totalSize+size)+2;
      contents.resize(totalSize);
      contents.at(totalSize-2)='\n'; // to help the scanner
      contents.at(totalSize-1)='\0';
      return contents;
    }
  }
  else // read from file
  {
    QFileInfo fi(name);
    if (!fi.exists() || !fi.isFile())
    {
      err("error: file `%s' not found\n",name);
      return "";
    }
    QCString filterName = getFileFilter(name,isSourceCode);
    if (filterName.isEmpty() || !filter)
    {
      f.setName(name);
      fileOpened=f.open(IO_ReadOnly);
      if (fileOpened)
      {
        int fsize=f.size();
        QCString contents(fsize+2);
        f.readBlock(contents.data(),fsize);
        if (fsize==0 || contents[fsize-1]=='\n') 
          contents[fsize]='\0';
        else
          contents[fsize]='\n'; // to help the scanner
        contents[fsize+1]='\0';
        f.close();
        int newSize = filterCRLF(contents.data(),fsize+2);
        if (newSize!=fsize+2) 
        {
          contents.resize(newSize);
        }
        return transcodeCharacterStringToUTF8(contents);
      }
    }
    else // filter the input
    {
      QCString cmd=filterName+" \""+name+"\"";
      Debug::print(Debug::ExtCmd,0,"Executing popen(`%s`)\n",cmd.data());
      FILE *f=portable_popen(cmd,"r");
      if (!f)
      {
        err("error: could not execute filter %s\n",filterName.data());
        return "";
      }
      const int bSize=4096;
      QCString contents(bSize);
      int totalSize=0;
      int size;
      while ((size=fread(contents.data()+totalSize,1,bSize,f))==bSize)
      {
        totalSize+=bSize;
        contents.resize(totalSize+bSize); 
      }
      totalSize = filterCRLF(contents.data(),totalSize+size)+2;
      contents.resize(totalSize);
      contents.at(totalSize-2)='\n'; // to help the scanner
      contents.at(totalSize-1)='\0';
      portable_pclose(f);
      return transcodeCharacterStringToUTF8(contents);
    }
  }
  if (!fileOpened)  
  {
    err("error: cannot open file `%s' for reading\n",name);
  }
  return "";
}

QCString dateToString(bool includeTime)
{
  QDateTime current = QDateTime::currentDateTime();
  return theTranslator->trDateTime(current.date().year(),
                                   current.date().month(),
                                   current.date().day(),
                                   current.date().dayOfWeek(),
                                   current.time().hour(),
                                   current.time().minute(),
                                   current.time().second(),
                                   includeTime);
}

QCString yearToString()
{
  const QDate &d=QDate::currentDate();
  QCString result;
  result.sprintf("%d", d.year());
  return result;
}

//----------------------------------------------------------------------
// recursive function that returns the number of branches in the 
// inheritance tree that the base class `bcd' is below the class `cd'

int minClassDistance(const ClassDef *cd,const ClassDef *bcd,int level)
{
  if (bcd->categoryOf()) // use class that is being extended in case of 
    // an Objective-C category
  {
    bcd=bcd->categoryOf();
  }
  if (cd==bcd) return level; 
  if (level==256)
  {
    err("error: Internal inconsistency: found class %s seem to have a recursive "
        "inheritance relation! Please send a bug report to dimitri@stack.nl\n",cd->name().data());
    return -1;
  }
  int m=maxInheritanceDepth; 
  if (cd->baseClasses())
  {
#if 0    
    BaseClassListIterator bcli(*cd->baseClasses());
    for ( ; bcli.current() ; ++bcli)
    {
      //printf("class %s base class %s\n",cd->name().data(),bcli.current()->classDef->name().data());
      int mc=minClassDistance(bcli.current()->classDef,bcd,level+1);
      if (mc<m) m=mc;
      if (m<0) break;
    }
#endif
    BaseClassDef *bcdi = cd->baseClasses()->first();
    while (bcdi)
    {
      int mc=minClassDistance(bcdi->classDef,bcd,level+1);
      if (mc<m) m=mc;
      if (m<0) break;
      bcdi = cd->baseClasses()->next();
    }
  }
  return m;
}

//static void printArgList(ArgumentList *al)
//{
//  if (al==0) return;
//  ArgumentListIterator ali(*al);
//  Argument *a;
//  printf("(");
//  for (;(a=ali.current());++ali)
//  {
//    printf("t=`%s' n=`%s' v=`%s' ",a->type.data(),!a->name.isEmpty()>0?a->name.data():"",!a->defval.isEmpty()>0?a->defval.data():""); 
//  }
//  printf(")");
//}

#ifndef NEWMATCH
// strip any template specifiers that follow className in string s
static QCString trimTemplateSpecifiers(
    const QCString &namespaceName,
    const QCString &className,
    const QCString &s
    )
{
  //printf("trimTemplateSpecifiers(%s,%s,%s)\n",namespaceName.data(),className.data(),s.data());
  QCString scopeName=mergeScopes(namespaceName,className);
  ClassDef *cd=getClass(scopeName);
  if (cd==0) return s; // should not happen, but guard anyway.

  QCString result=s;

  int i=className.length()-1;
  if (i>=0 && className.at(i)=='>') // template specialization
  {
    // replace unspecialized occurrences in s, with their specialized versions.
    int count=1;
    int cl=i+1;
    while (i>=0)
    {
      char c=className.at(i);
      if (c=='>') count++,i--;
      else if (c=='<') { count--; if (count==0) break; }
      else i--;
    }
    QCString unspecClassName=className.left(i);
    int l=i;
    int p=0;
    while ((i=result.find(unspecClassName,p))!=-1)
    {
      if (result.at(i+l)!='<') // unspecialized version
      {
        result=result.left(i)+className+result.right(result.length()-i-l);
        l=cl;
      }
      p=i+l;
    }
  }

  //printf("result after specialization: %s\n",result.data());

  QCString qualName=cd->qualifiedNameWithTemplateParameters();
  //printf("QualifiedName = %s\n",qualName.data());
  // We strip the template arguments following className (if any)
  if (!qualName.isEmpty()) // there is a class name
  {
    int is,ps=0;
    int p=0,l,i;

    while ((is=getScopeFragment(qualName,ps,&l))!=-1)
    {
      QCString qualNamePart = qualName.right(qualName.length()-is);
      //printf("qualNamePart=%s\n",qualNamePart.data());
      while ((i=result.find(qualNamePart,p))!=-1)
      {
        int ql=qualNamePart.length();
        result=result.left(i)+cd->name()+result.right(result.length()-i-ql);
        p=i+cd->name().length();
      }
      ps=is+l;
    }
  }
  //printf("result=%s\n",result.data());

  return result.stripWhiteSpace();
}

/*!
 * @param pattern pattern to look for
 * @param s string to search in
 * @param p position to start
 * @param len resulting pattern length
 * @returns position on which string is found, or -1 if not found
 */
static int findScopePattern(const QCString &pattern,const QCString &s,
    int p,int *len)
{
  int sl=s.length();
  int pl=pattern.length();
  int sp=0; 
  *len=0;
  while (p<sl)
  {
    sp=p; // start of match
    int pp=0; // pattern position
    while (p<sl && pp<pl)
    {
      if (s.at(p)=='<') // skip template arguments while matching
      {
        int bc=1;
        //printf("skipping pos=%d c=%c\n",p,s.at(p));
        p++;
        while (p<sl)
        {
          if (s.at(p)=='<') bc++;
          else if (s.at(p)=='>') 
          {
            bc--;
            if (bc==0) 
            {
              p++;
              break;
            }
          }
          //printf("skipping pos=%d c=%c\n",p,s.at(p));
          p++;
        }
      }
      else if (s.at(p)==pattern.at(pp))
      {
        //printf("match at position p=%d pp=%d c=%c\n",p,pp,s.at(p));
        p++;
        pp++;
      }
      else // no match
      {
        //printf("restarting at %d c=%c pat=%s\n",p,s.at(p),pattern.data());
        p=sp+1;
        break;
      }
    }
    if (pp==pl) // whole pattern matches
    {
      *len=p-sp;
      return sp;
    }
  }
  return -1;
}

static QCString trimScope(const QCString &name,const QCString &s)
{
  int scopeOffset=name.length();
  QCString result=s;
  do // for each scope
  {
    QCString tmp;
    QCString scope=name.left(scopeOffset)+"::";
    //printf("Trying with scope=`%s'\n",scope.data());

    int i,p=0,l;
    while ((i=findScopePattern(scope,result,p,&l))!=-1) // for each occurrence
    {
      tmp+=result.mid(p,i-p); // add part before pattern
      p=i+l;
    }
    tmp+=result.right(result.length()-p); // add trailing part

    scopeOffset=name.findRev("::",scopeOffset-1);
    result = tmp;
  } while (scopeOffset>0);   
  //printf("trimScope(name=%s,scope=%s)=%s\n",name.data(),s.data(),result.data());
  return result;
}
#endif

void trimBaseClassScope(BaseClassList *bcl,QCString &s,int level=0)
{
  //printf("trimBaseClassScope level=%d `%s'\n",level,s.data());
  BaseClassListIterator bcli(*bcl);
  BaseClassDef *bcd;
  for (;(bcd=bcli.current());++bcli)
  {
    ClassDef *cd=bcd->classDef;
    //printf("Trying class %s\n",cd->name().data());
    int spos=s.find(cd->name()+"::");
    if (spos!=-1)
    {
      s = s.left(spos)+s.right(
          s.length()-spos-cd->name().length()-2
          );
    }
    //printf("base class `%s'\n",cd->name().data());
    if (cd->baseClasses())
      trimBaseClassScope(cd->baseClasses(),s,level+1); 
  }
}

#if 0
/*! if either t1 or t2 contains a namespace scope, then remove that
 *  scope. If neither or both have a namespace scope, t1 and t2 remain
 *  unchanged.
 */
static void trimNamespaceScope(QCString &t1,QCString &t2,const QCString &nsName)
{
  int p1=t1.length();
  int p2=t2.length();
  for (;;)
  {
    int i1=p1==0 ? -1 : t1.findRev("::",p1);
    int i2=p2==0 ? -1 : t2.findRev("::",p2);
    if (i1==-1 && i2==-1)
    {
      return;
    }
    if (i1!=-1 && i2==-1) // only t1 has a scope
    {
      QCString scope=t1.left(i1);
      replaceNamespaceAliases(scope,i1);

      int so=nsName.length();
      do
      {
        QCString fullScope=nsName.left(so);
        if (!fullScope.isEmpty() && !scope.isEmpty()) fullScope+="::";
        fullScope+=scope;
        if (!fullScope.isEmpty() && Doxygen::namespaceSDict[fullScope]!=0) // scope is a namespace
        {
          t1 = t1.right(t1.length()-i1-2);
          return;
        }
        if (so==0)
        {
          so=-1;
        }
        else if ((so=nsName.findRev("::",so-1))==-1)
        {
          so=0;
        }
      }
      while (so>=0);
    }
    else if (i1==-1 && i2!=-1) // only t2 has a scope
    {
      QCString scope=t2.left(i2);
      replaceNamespaceAliases(scope,i2);

      int so=nsName.length();
      do
      {
        QCString fullScope=nsName.left(so);
        if (!fullScope.isEmpty() && !scope.isEmpty()) fullScope+="::";
        fullScope+=scope;
        if (!fullScope.isEmpty() && Doxygen::namespaceSDict[fullScope]!=0) // scope is a namespace
        {
          t2 = t2.right(t2.length()-i2-2);
          return;
        }
        if (so==0)
        {
          so=-1;
        }
        else if ((so=nsName.findRev("::",so-1))==-1)
        {
          so=0;
        }
      }
      while (so>=0);
    }
    p1 = QMAX(i1-2,0);
    p2 = QMAX(i2-2,0);
  }
}
#endif

static void stripIrrelevantString(QCString &target,const QCString &str)
{
  if (target==str) { target.resize(0); return; }
  int i,p=0;
  int l=str.length();
  bool changed=FALSE;
  while ((i=target.find(str,p))!=-1)
  {
    bool isMatch = (i==0 || !isId(target.at(i-1))) && // not a character before str
      (i+l==(int)target.length() || !isId(target.at(i+l))); // not a character after str
    if (isMatch)
    {
      int i1=target.find('*',i+l);
      int i2=target.find('&',i+l);
      if (i1==-1 && i2==-1)
      {
        // strip str from target at index i
        target=target.left(i)+target.right(target.length()-i-l); 
        changed=TRUE;
        i-=l;
      }
      else if ((i1!=-1 && i<i1) || (i2!=-1 && i<i2)) // str before * or &
      {
        // move str to front
        target=str+" "+target.left(i)+target.right(target.length()-i-l);
        changed=TRUE;
        i++;
      }
    }
    p = i+l;
  }
  if (changed) target=target.stripWhiteSpace();
}

/*! According to the C++ spec and Ivan Vecerina:

  Parameter declarations  that differ only in the presence or absence
  of const and/or volatile are equivalent.

  So the following example, show what is stripped by this routine
  for const. The same is done for volatile.

  \code
  const T param     ->   T param          // not relevant
  const T& param    ->   const T& param   // const needed               
  T* const param    ->   T* param         // not relevant                   
  const T* param    ->   const T* param   // const needed
  \endcode
 */
void stripIrrelevantConstVolatile(QCString &s)
{
  //printf("stripIrrelevantConstVolatile(%s)=",s.data());
  stripIrrelevantString(s,"const");
  stripIrrelevantString(s,"volatile");
  //printf("%s\n",s.data());
}


// a bit of debug support for matchArguments
#define MATCH
#define NOMATCH
//#define MATCH printf("Match at line %d\n",__LINE__);
//#define NOMATCH printf("Nomatch at line %d\n",__LINE__);

#ifndef NEWMATCH
static bool matchArgument(const Argument *srcA,const Argument *dstA,
    const QCString &className,
    const QCString &namespaceName,
    NamespaceSDict *usingNamespaces,
    SDict<Definition> *usingClasses)
{
  //printf("match argument start `%s|%s' <-> `%s|%s' using nsp=%p class=%p\n",
  //    srcA->type.data(),srcA->name.data(),
  //    dstA->type.data(),dstA->name.data(),
  //    usingNamespaces,
  //    usingClasses);

  // TODO: resolve any typedefs names that are part of srcA->type
  //       before matching. This should use className and namespaceName
  //       and usingNamespaces and usingClass to determine which typedefs
  //       are in-scope, so it will not be very efficient :-(

  QCString srcAType=trimTemplateSpecifiers(namespaceName,className,srcA->type);
  QCString dstAType=trimTemplateSpecifiers(namespaceName,className,dstA->type);
  QCString srcAName=srcA->name.stripWhiteSpace();
  QCString dstAName=dstA->name.stripWhiteSpace();
  srcAType.stripPrefix("class ");
  dstAType.stripPrefix("class ");

  // allow distinguishing "const A" from "const B" even though 
  // from a syntactic point of view they would be two names of the same 
  // type "const". This is not fool prove of course, but should at least 
  // catch the most common cases.
  if ((srcAType=="const" || srcAType=="volatile") && !srcAName.isEmpty())
  {
    srcAType+=" ";
    srcAType+=srcAName;
  } 
  if ((dstAType=="const" || dstAType=="volatile") && !dstAName.isEmpty())
  {
    dstAType+=" ";
    dstAType+=dstAName;
  }
  if (srcAName=="const" || srcAName=="volatile")
  {
    srcAType+=srcAName;
    srcAName.resize(0);
  }
  else if (dstA->name=="const" || dstA->name=="volatile")
  {
    dstAType+=dstA->name;
    dstAName.resize(0);
  }

  stripIrrelevantConstVolatile(srcAType);
  stripIrrelevantConstVolatile(dstAType);

  // strip typename keyword
  if (strncmp(srcAType,"typename ",9)==0)
  {
    srcAType = srcAType.right(srcAType.length()-9); 
  }
  if (strncmp(dstAType,"typename ",9)==0)
  {
    dstAType = dstAType.right(dstAType.length()-9); 
  }

  srcAType = removeRedundantWhiteSpace(srcAType);
  dstAType = removeRedundantWhiteSpace(dstAType);

  //srcAType=stripTemplateSpecifiersFromScope(srcAType,FALSE);
  //dstAType=stripTemplateSpecifiersFromScope(dstAType,FALSE);

  //printf("srcA=`%s|%s' dstA=`%s|%s'\n",srcAType.data(),srcAName.data(),
  //      dstAType.data(),dstAName.data());

  if (srcA->array!=dstA->array) // nomatch for char[] against char
  {
    NOMATCH
      return FALSE;
  }
  if (srcAType!=dstAType) // check if the argument only differs on name 
  {

    // remove a namespace scope that is only in one type 
    // (assuming a using statement was used)
    //printf("Trimming %s<->%s: %s\n",srcAType.data(),dstAType.data(),namespaceName.data());
    //trimNamespaceScope(srcAType,dstAType,namespaceName);
    //printf("After Trimming %s<->%s\n",srcAType.data(),dstAType.data());

    //QCString srcScope;
    //QCString dstScope;

    // strip redundant scope specifiers
    if (!className.isEmpty())
    {
      srcAType=trimScope(className,srcAType);
      dstAType=trimScope(className,dstAType);
      //printf("trimScope: `%s' <=> `%s'\n",srcAType.data(),dstAType.data());
      ClassDef *cd;
      if (!namespaceName.isEmpty())
        cd=getClass(namespaceName+"::"+className);
      else
        cd=getClass(className);
      if (cd && cd->baseClasses())
      {
        trimBaseClassScope(cd->baseClasses(),srcAType); 
        trimBaseClassScope(cd->baseClasses(),dstAType); 
      }
      //printf("trimBaseClassScope: `%s' <=> `%s'\n",srcAType.data(),dstAType.data());
    }
    if (!namespaceName.isEmpty())
    {
      srcAType=trimScope(namespaceName,srcAType);
      dstAType=trimScope(namespaceName,dstAType);
    }
    //printf("#usingNamespace=%d\n",usingNamespaces->count());
    if (usingNamespaces && usingNamespaces->count()>0)
    {
      NamespaceSDict::Iterator nli(*usingNamespaces);
      NamespaceDef *nd;
      for (;(nd=nli.current());++nli)
      {
        srcAType=trimScope(nd->name(),srcAType);
        dstAType=trimScope(nd->name(),dstAType);
      }
    }
    //printf("#usingClasses=%d\n",usingClasses->count());
    if (usingClasses && usingClasses->count()>0)
    {
      SDict<Definition>::Iterator cli(*usingClasses);
      Definition *cd;
      for (;(cd=cli.current());++cli)
      {
        srcAType=trimScope(cd->name(),srcAType);
        dstAType=trimScope(cd->name(),dstAType);
      }
    }

    //printf("2. srcA=%s|%s dstA=%s|%s\n",srcAType.data(),srcAName.data(),
    //    dstAType.data(),dstAName.data());

    if (!srcAName.isEmpty() && !dstA->type.isEmpty() &&
        (srcAType+" "+srcAName)==dstAType)
    {
      MATCH
      return TRUE;
    }
    else if (!dstAName.isEmpty() && !srcA->type.isEmpty() &&
        (dstAType+" "+dstAName)==srcAType)
    {
      MATCH
      return TRUE;
    }


    uint srcPos=0,dstPos=0; 
    bool equal=TRUE;
    while (srcPos<srcAType.length() && dstPos<dstAType.length() && equal)
    {
      equal=srcAType.at(srcPos)==dstAType.at(dstPos);
      if (equal) srcPos++,dstPos++; 
    }
    uint srcATypeLen=srcAType.length();
    uint dstATypeLen=dstAType.length();
    if (srcPos<srcATypeLen && dstPos<dstATypeLen)
    {
      // if nothing matches or the match ends in the middle or at the
      // end of a string then there is no match
      if (srcPos==0 || dstPos==0) 
      {
        NOMATCH
        return FALSE;
      }
      if (isId(srcAType.at(srcPos)) && isId(dstAType.at(dstPos)))
      {
        //printf("partial match srcPos=%d dstPos=%d!\n",srcPos,dstPos);
        // check if a name if already found -> if no then there is no match
        if (!srcAName.isEmpty() || !dstAName.isEmpty()) 
        {
          NOMATCH
          return FALSE;
        }
        // types only
        while (srcPos<srcATypeLen && isId(srcAType.at(srcPos))) srcPos++;
        while (dstPos<dstATypeLen && isId(dstAType.at(dstPos))) dstPos++;
        if (srcPos<srcATypeLen || 
            dstPos<dstATypeLen ||
            (srcPos==srcATypeLen && dstPos==dstATypeLen)
           ) 
        {
          NOMATCH
          return FALSE;
        }
      }
      else
      {
        // otherwise we assume that a name starts at the current position.
        while (srcPos<srcATypeLen && isId(srcAType.at(srcPos))) srcPos++;
        while (dstPos<dstATypeLen && isId(dstAType.at(dstPos))) dstPos++;

        // if nothing more follows for both types then we assume we have
        // found a match. Note that now `signed int' and `signed' match, but
        // seeing that int is not a name can only be done by looking at the
        // semantics.

        if (srcPos!=srcATypeLen || dstPos!=dstATypeLen) 
        { 
          NOMATCH
          return FALSE; 
        }
      }
    }
    else if (dstPos<dstAType.length())
    {
      if (!isspace((uchar)dstAType.at(dstPos))) // maybe the names differ
      {
        if (!dstAName.isEmpty()) // dst has its name separated from its type
        {
          NOMATCH
          return FALSE;
        }
        while (dstPos<dstAType.length() && isId(dstAType.at(dstPos))) dstPos++;
        if (dstPos!=dstAType.length()) 
        {
          NOMATCH
          return FALSE; // more than a difference in name -> no match
        }
      }
      else  // maybe dst has a name while src has not
      {
        dstPos++;
        while (dstPos<dstAType.length() && isId(dstAType.at(dstPos))) dstPos++;
        if (dstPos!=dstAType.length() || !srcAName.isEmpty()) 
        {
          NOMATCH
          return FALSE; // nope not a name -> no match
        }
      }
    }
    else if (srcPos<srcAType.length())
    {
      if (!isspace((uchar)srcAType.at(srcPos))) // maybe the names differ
      {
        if (!srcAName.isEmpty()) // src has its name separated from its type
        {
          NOMATCH
          return FALSE;
        }
        while (srcPos<srcAType.length() && isId(srcAType.at(srcPos))) srcPos++;
        if (srcPos!=srcAType.length()) 
        {
          NOMATCH
          return FALSE; // more than a difference in name -> no match
        }
      }
      else // maybe src has a name while dst has not
      {
        srcPos++;
        while (srcPos<srcAType.length() && isId(srcAType.at(srcPos))) srcPos++;
        if (srcPos!=srcAType.length() || !dstAName.isEmpty()) 
        {
          NOMATCH
          return FALSE; // nope not a name -> no match
        }
      }
    }
  }
  MATCH
  return TRUE;
}


/*!
 * Matches the arguments list srcAl with the argument list dstAl
 * Returns TRUE if the argument lists are equal. Two argument list are 
 * considered equal if the number of arguments is equal and the types of all 
 * arguments are equal. Furthermore the const and volatile specifiers 
 * stored in the list should be equal.
 */
bool matchArguments(ArgumentList *srcAl,ArgumentList *dstAl,
    const char *cl,const char *ns,bool checkCV,
    NamespaceSDict *usingNamespaces,
    SDict<Definition> *usingClasses)
{
  QCString className=cl;
  QCString namespaceName=ns;

  // strip template specialization from class name if present
  //int til=className.find('<'),tir=className.find('>');
  //if (til!=-1 && tir!=-1 && tir>til) 
  //{
  //  className=className.left(til)+className.right(className.length()-tir-1);
  //}

  //printf("matchArguments(%s,%s) className=%s namespaceName=%s checkCV=%d usingNamespaces=%d usingClasses=%d\n",
  //    srcAl ? argListToString(srcAl).data() : "",
  //    dstAl ? argListToString(dstAl).data() : "",
  //    cl,ns,checkCV,
  //    usingNamespaces?usingNamespaces->count():0,
  //    usingClasses?usingClasses->count():0
  //    );

  if (srcAl==0 || dstAl==0)
  {
    bool match = srcAl==dstAl; // at least one of the members is not a function
    if (match)
    {
      MATCH
      return TRUE;
    }
    else
    {
      NOMATCH
      return FALSE;
    }
  }

  // handle special case with void argument
  if ( srcAl->count()==0 && dstAl->count()==1 && 
      dstAl->getFirst()->type=="void" )
  { // special case for finding match between func() and func(void)
    Argument *a=new Argument;
    a->type = "void";
    srcAl->append(a);
    MATCH
    return TRUE;
  }
  if ( dstAl->count()==0 && srcAl->count()==1 &&
      srcAl->getFirst()->type=="void" )
  { // special case for finding match between func(void) and func()
    Argument *a=new Argument;
    a->type = "void";
    dstAl->append(a);
    MATCH
    return TRUE;
  }

  if (srcAl->count() != dstAl->count())
  {
    NOMATCH
    return FALSE; // different number of arguments -> no match
  }

  if (checkCV)
  {
    if (srcAl->constSpecifier != dstAl->constSpecifier) 
    {
      NOMATCH
      return FALSE; // one member is const, the other not -> no match
    }
    if (srcAl->volatileSpecifier != dstAl->volatileSpecifier)
    {
      NOMATCH
      return FALSE; // one member is volatile, the other not -> no match
    }
  }

  // so far the argument list could match, so we need to compare the types of
  // all arguments.
  ArgumentListIterator srcAli(*srcAl),dstAli(*dstAl);
  Argument *srcA,*dstA;
  for (;(srcA=srcAli.current(),dstA=dstAli.current());++srcAli,++dstAli)
  { 
    if (!matchArgument(srcA,dstA,className,namespaceName,
          usingNamespaces,usingClasses))
    {
      NOMATCH
      return FALSE;
    }
  }
  MATCH
  return TRUE; // all arguments match 
}

#endif

#if 0
static QCString resolveSymbolName(FileDef *fs,Definition *symbol,QCString &templSpec)
{
  ASSERT(symbol!=0);
  if (symbol->definitionType()==Definition::TypeMember && 
      ((MemberDef*)symbol)->isTypedef()) // if symbol is a typedef then try
    // to resolve it
  {
    MemberDef *md = 0;
    ClassDef *cd = newResolveTypedef(fs,(MemberDef*)symbol,&md,&templSpec);
    if (cd)
    {
      return cd->qualifiedName()+templSpec;
    }
    else if (md)
    {
      return md->qualifiedName();
    }
  }
  return symbol->qualifiedName();
}
#endif

static QCString stripDeclKeywords(const QCString &s)
{
  int i=s.find(" class ");
  if (i!=-1) return s.left(i)+s.mid(i+6);
  i=s.find(" typename ");
  if (i!=-1) return s.left(i)+s.mid(i+9);
  i=s.find(" union ");
  if (i!=-1) return s.left(i)+s.mid(i+6);
  i=s.find(" struct ");
  if (i!=-1) return s.left(i)+s.mid(i+7);
  return s;
}

// forward decl for circular dependencies
static QCString extractCanonicalType(Definition *d,FileDef *fs,QCString type);

QCString getCanonicalTemplateSpec(Definition *d,FileDef *fs,const QCString& spec)
{
  
  QCString templSpec = spec.stripWhiteSpace();
  // this part had been commented out before... but it is needed to match for instance
  // std::list<std::string> against list<string> so it is now back again!
  if (!templSpec.isEmpty() && templSpec.at(0) == '<') 
  {
    templSpec = "< " + extractCanonicalType(d,fs,templSpec.right(templSpec.length()-1).stripWhiteSpace());
  }
  QCString resolvedType = resolveTypeDef(d,templSpec);
  if (!resolvedType.isEmpty()) // not known as a typedef either
  {
    templSpec = resolvedType;
  }
  //printf("getCanonicalTemplateSpec(%s)=%s\n",spec.data(),templSpec.data());
  return templSpec;
}


static QCString getCanonicalTypeForIdentifier(
    Definition *d,FileDef *fs,const QCString &word,
    QCString *tSpec,int count=0)
{
  if (count>10) return word; // oops recursion

  QCString symName,scope,result,templSpec,tmpName;
  //DefinitionList *defList=0;
  if (tSpec && !tSpec->isEmpty()) templSpec = stripDeclKeywords(getCanonicalTemplateSpec(d,fs,*tSpec));

  if (word.findRev("::")!=-1 && !(tmpName=stripScope(word)).isEmpty())
  {
    symName=tmpName; // name without scope
  }
  else
  {
    symName=word;
  }
  //printf("getCanonicalTypeForIdentifier(%s,[%s->%s]) start\n",
  //    word.data(),tSpec?tSpec->data():"<none>",templSpec.data());

  ClassDef *cd = 0;
  MemberDef *mType = 0;
  QCString ts;
  QCString resolvedType;

  // lookup class / class template instance
  cd = getResolvedClass(d,fs,word+templSpec,&mType,&ts,TRUE,TRUE,&resolvedType);
  bool isTemplInst = cd && !templSpec.isEmpty();
  if (!cd && !templSpec.isEmpty())
  {
    // class template specialization not known, look up class template
    cd = getResolvedClass(d,fs,word,&mType,&ts,TRUE,TRUE,&resolvedType);
  }
  if (cd && cd->isUsedOnly()) cd=0; // ignore types introduced by usage relations

  //printf("cd=%p mtype=%p\n",cd,mType);
  //printf("  getCanonicalTypeForIdentifer: symbol=%s word=%s cd=%s d=%s fs=%s cd->isTemplate=%d\n",
  //    symName.data(),
  //    word.data(),
  //    cd?cd->name().data():"<none>",
  //    d?d->name().data():"<none>",
  //    fs?fs->name().data():"<none>",
  //    cd?cd->isTemplate():-1
  //   );

  //printf("  >>>> word '%s' => '%s' templSpec=%s ts=%s tSpec=%s isTemplate=%d resolvedType=%s\n",
  //    (word+templSpec).data(),
  //    cd?cd->qualifiedName().data():"<none>",
  //    templSpec.data(),ts.data(),
  //    tSpec?tSpec->data():"<null>",
  //    cd?cd->isTemplate():FALSE,
  //    resolvedType.data());

  //printf("  mtype=%s\n",mType?mType->name().data():"<none>");

  if (cd) // resolves to a known class type
  {
    if (cd==d && tSpec) *tSpec="";

    if (mType && mType->isTypedef()) // but via a typedef
    {
      result = resolvedType;
    }
    else
    {
      if (isTemplInst)
      {
        // spec is already part of class type
        templSpec="";
        if (tSpec) *tSpec="";
      }
      else if (!ts.isEmpty() && templSpec.isEmpty())
      {
        // use formal template args for spec
        templSpec = stripDeclKeywords(getCanonicalTemplateSpec(d,fs,ts));
      }

      result = removeRedundantWhiteSpace(cd->qualifiedName() + templSpec);

      if (cd->isTemplate() && tSpec) //
      {
        if (!templSpec.isEmpty()) // specific instance
        {
          result=cd->name()+templSpec;
        }
        else // use template type
        {
          result=cd->qualifiedNameWithTemplateParameters();
        }
        // template class, so remove the template part (it is part of the class name)
        *tSpec="";
      }
      else if (ts.isEmpty() && !templSpec.isEmpty() && cd && !cd->isTemplate() && tSpec)
      {
        // obscure case, where a class is used as a template, but doxygen think it is
        // not (could happen when loading the class from a tag file).
        *tSpec="";
      }
    }
  }
  else if (mType && mType->isEnumerate()) // an enum
  {
    result = mType->qualifiedName();
  }
  else if (mType && mType->isTypedef()) // a typedef
  {
    //result = mType->qualifiedName(); // changed after 1.7.2
    //result = mType->typeString();
    if (word!=mType->typeString())
    {
      result = getCanonicalTypeForIdentifier(d,fs,mType->typeString(),tSpec,count++);
    }
    else
    {
      result = mType->typeString();
    }
  }
  else // fallback
  {
    resolvedType = resolveTypeDef(d,word);
    //printf("typedef [%s]->[%s]\n",word.data(),resolvedType.data());
    if (resolvedType.isEmpty()) // not known as a typedef either
    {
      result = word;
    }
    else
    {
      result = resolvedType;
    }
  }
  //printf("getCanonicalTypeForIdentifier [%s]->[%s]\n",word.data(),result.data());
  return result;
}

static QCString extractCanonicalType(Definition *d,FileDef *fs,QCString type)
{
  type = type.stripWhiteSpace();

  // strip const and volatile keywords that are not relevant for the type
  stripIrrelevantConstVolatile(type);

  // strip leading keywords
  type.stripPrefix("class ");
  type.stripPrefix("struct ");
  type.stripPrefix("union ");
  type.stripPrefix("enum ");
  type.stripPrefix("typename ");

  type = removeRedundantWhiteSpace(type);
  //printf("extractCanonicalType(type=%s) start: def=%s file=%s\n",type.data(),
  //    d ? d->name().data() : "<null>",fs ? fs->name().data() : "<null>");

  //static QRegExp id("[a-z_A-Z\\x80-\\xFF][:a-z_A-Z0-9\\x80-\\xFF]*");

  QCString canType;
  QCString templSpec,word;
  int i,p=0,pp=0;
  while ((i=extractClassNameFromType(type,p,word,templSpec))!=-1)
    // foreach identifier in the type
  {
    //printf("     i=%d p=%d\n",i,p);
    if (i>pp) canType += type.mid(pp,i-pp);


    QCString ct = getCanonicalTypeForIdentifier(d,fs,word,&templSpec);

    // in case the ct is empty it means that "word" represents scope "d"
    // and this does not need to be added to the canonical 
    // type (it is redundant), so/ we skip it. This solves problem 589616.
    if (ct.isEmpty() && type.mid(p,2)=="::")
    {
      p+=2;
    }
    else
    {
      canType += ct;
    }
    //printf(" word=%s templSpec=%s canType=%s ct=%s\n",
    //    word.data(),templSpec.data(),canType.data(),ct.data());
    if (!templSpec.isEmpty()) // if we didn't use up the templSpec already
                              // (i.e. type is not a template specialization)
                              // then resolve any identifiers inside. 
    {
      static QRegExp re("[a-z_A-Z\\x80-\\xFF][a-z_A-Z0-9\\x80-\\xFF]*");
      int tp=0,tl,ti;
      // for each identifier template specifier
      //printf("adding resolved %s to %s\n",templSpec.data(),canType.data());
      while ((ti=re.match(templSpec,tp,&tl))!=-1)
      {
        canType += templSpec.mid(tp,ti-tp);
        canType += getCanonicalTypeForIdentifier(d,fs,templSpec.mid(ti,tl),0);
        tp=ti+tl;
      }
      canType+=templSpec.right(templSpec.length()-tp);
    }

    pp=p;
  }
  canType += type.right(type.length()-pp);
  //printf("extractCanonicalType = '%s'->'%s'\n",type.data(),canType.data());

  return removeRedundantWhiteSpace(canType);
}

static QCString extractCanonicalArgType(Definition *d,FileDef *fs,const Argument *arg)
{
  QCString type = arg->type.stripWhiteSpace();
  QCString name = arg->name;
  //printf("----- extractCanonicalArgType(type=%s,name=%s)\n",type.data(),name.data());
  if ((type=="const" || type=="volatile") && !name.isEmpty()) 
  { // name is part of type => correct
    type+=" ";
    type+=name;
  } 
  if (name=="const" || name=="volatile")
  { // name is part of type => correct
    if (!type.isEmpty()) type+=" ";
    type+=name;
  }
  if (!arg->array.isEmpty())
  {
    type+=arg->array;
  }

  return extractCanonicalType(d,fs,type);
}

static bool matchArgument2(
    Definition *srcScope,FileDef *srcFileScope,Argument *srcA,
    Definition *dstScope,FileDef *dstFileScope,Argument *dstA
    )
{
  //printf(">> match argument: %s::`%s|%s' (%s) <-> %s::`%s|%s' (%s)\n",
  //    srcScope ? srcScope->name().data() : "",
  //    srcA->type.data(),srcA->name.data(),srcA->canType.data(),
  //    dstScope ? dstScope->name().data() : "",
  //    dstA->type.data(),dstA->name.data(),dstA->canType.data());

  //if (srcA->array!=dstA->array) // nomatch for char[] against char
  //{
  //  NOMATCH
  //  return FALSE;
  //}
  QCString sSrcName = " "+srcA->name;
  QCString sDstName = " "+dstA->name;
  QCString srcType  = srcA->type;
  QCString dstType  = dstA->type;
  stripIrrelevantConstVolatile(srcType);
  stripIrrelevantConstVolatile(dstType);
  //printf("'%s'<->'%s'\n",sSrcName.data(),dstType.right(sSrcName.length()).data());
  //printf("'%s'<->'%s'\n",sDstName.data(),srcType.right(sDstName.length()).data());
  if (sSrcName==dstType.right(sSrcName.length()))
  { // case "unsigned int" <-> "unsigned int i"
    srcA->type+=sSrcName;
    srcA->name="";
    srcA->canType=""; // invalidate cached type value
  }
  else if (sDstName==srcType.right(sDstName.length()))
  { // case "unsigned int i" <-> "unsigned int"
    dstA->type+=sDstName;
    dstA->name="";
    dstA->canType=""; // invalidate cached type value
  }

  if (srcA->canType.isEmpty())
  {
    srcA->canType = extractCanonicalArgType(srcScope,srcFileScope,srcA);
  }
  if (dstA->canType.isEmpty())
  {
    dstA->canType = extractCanonicalArgType(dstScope,dstFileScope,dstA);
  }

  if (srcA->canType==dstA->canType)
  {
    MATCH
    return TRUE;
  }
  else
  {
    //printf("   Canonical types do not match [%s]<->[%s]\n",
    //    srcA->canType.data(),dstA->canType.data());
    NOMATCH
    return FALSE;
  }
}


// new algorithm for argument matching
bool matchArguments2(Definition *srcScope,FileDef *srcFileScope,ArgumentList *srcAl,
    Definition *dstScope,FileDef *dstFileScope,ArgumentList *dstAl,
    bool checkCV
    )
{
  //printf("*** matchArguments2\n");
  ASSERT(srcScope!=0 && dstScope!=0);

  if (srcAl==0 || dstAl==0)
  {
    bool match = srcAl==dstAl; // at least one of the members is not a function
    if (match)
    {
      MATCH
      return TRUE;
    }
    else
    {
      NOMATCH
      return FALSE;
    }
  }

  // handle special case with void argument
  if ( srcAl->count()==0 && dstAl->count()==1 && 
      dstAl->getFirst()->type=="void" )
  { // special case for finding match between func() and func(void)
    Argument *a=new Argument;
    a->type = "void";
    srcAl->append(a);
    MATCH
    return TRUE;
  }
  if ( dstAl->count()==0 && srcAl->count()==1 &&
      srcAl->getFirst()->type=="void" )
  { // special case for finding match between func(void) and func()
    Argument *a=new Argument;
    a->type = "void";
    dstAl->append(a);
    MATCH
    return TRUE;
  }

  if (srcAl->count() != dstAl->count())
  {
    NOMATCH
    return FALSE; // different number of arguments -> no match
  }

  if (checkCV)
  {
    if (srcAl->constSpecifier != dstAl->constSpecifier) 
    {
      NOMATCH
      return FALSE; // one member is const, the other not -> no match
    }
    if (srcAl->volatileSpecifier != dstAl->volatileSpecifier)
    {
      NOMATCH
      return FALSE; // one member is volatile, the other not -> no match
    }
  }

  // so far the argument list could match, so we need to compare the types of
  // all arguments.
  ArgumentListIterator srcAli(*srcAl),dstAli(*dstAl);
  Argument *srcA,*dstA;
  for (;(srcA=srcAli.current(),dstA=dstAli.current());++srcAli,++dstAli)
  { 
    if (!matchArgument2(srcScope,srcFileScope,srcA,
          dstScope,dstFileScope,dstA)
       )
    {
      NOMATCH
      return FALSE;
    }
  }
  MATCH
  return TRUE; // all arguments match 
}



// merges the initializer of two argument lists
// pre:  the types of the arguments in the list should match.
void mergeArguments(ArgumentList *srcAl,ArgumentList *dstAl,bool forceNameOverwrite)
{
  //printf("mergeArguments `%s', `%s'\n",
  //    argListToString(srcAl).data(),argListToString(dstAl).data());

  if (srcAl==0 || dstAl==0 || srcAl->count()!=dstAl->count())
  {
    return; // invalid argument lists -> do not merge
  }

  ArgumentListIterator srcAli(*srcAl),dstAli(*dstAl);
  Argument *srcA,*dstA;
  for (;(srcA=srcAli.current(),dstA=dstAli.current());++srcAli,++dstAli)
  {
    if (srcA->defval.isEmpty() && !dstA->defval.isEmpty())
    {
      //printf("Defval changing `%s'->`%s'\n",srcA->defval.data(),dstA->defval.data());
      srcA->defval=dstA->defval.copy();
    }
    else if (!srcA->defval.isEmpty() && dstA->defval.isEmpty())
    {
      //printf("Defval changing `%s'->`%s'\n",dstA->defval.data(),srcA->defval.data());
      dstA->defval=srcA->defval.copy();
    }

    // fix wrongly detected const or volatile specifiers before merging.
    // example: "const A *const" is detected as type="const A *" name="const"
    if (srcA->name=="const" || srcA->name=="volatile")
    {
      srcA->type+=" "+srcA->name;
      srcA->name.resize(0);
    }
    if (dstA->name=="const" || dstA->name=="volatile")
    {
      dstA->type+=" "+dstA->name;
      dstA->name.resize(0);
    }

    if (srcA->type==dstA->type)
    {
      //printf("1. merging %s:%s <-> %s:%s\n",srcA->type.data(),srcA->name.data(),dstA->type.data(),dstA->name.data());
      if (srcA->name.isEmpty() && !dstA->name.isEmpty())
      {
        //printf("type: `%s':=`%s'\n",srcA->type.data(),dstA->type.data());
        //printf("name: `%s':=`%s'\n",srcA->name.data(),dstA->name.data());
        srcA->type = dstA->type.copy();
        srcA->name = dstA->name.copy();
      }
      else if (!srcA->name.isEmpty() && dstA->name.isEmpty())
      {
        //printf("type: `%s':=`%s'\n",dstA->type.data(),srcA->type.data());
        //printf("name: `%s':=`%s'\n",dstA->name.data(),srcA->name.data());
        dstA->type = srcA->type.copy();
        dstA->name = dstA->name.copy();
      }
      else if (!srcA->name.isEmpty() && !dstA->name.isEmpty())
      {
        //printf("srcA->name=%s dstA->name=%s\n",srcA->name.data(),dstA->name.data());
        if (forceNameOverwrite)
        {
          srcA->name = dstA->name;
        }
        else
        {
          if (srcA->docs.isEmpty() && !dstA->docs.isEmpty())
          {
            srcA->name = dstA->name;
          }
          else if (!srcA->docs.isEmpty() && dstA->docs.isEmpty())
          {
            dstA->name = srcA->name;
          }
        }
      }
    }
    else
    {
      //printf("2. merging '%s':'%s' <-> '%s':'%s'\n",srcA->type.data(),srcA->name.data(),dstA->type.data(),dstA->name.data());
      srcA->type=srcA->type.stripWhiteSpace();
      dstA->type=dstA->type.stripWhiteSpace();
      if (srcA->type+" "+srcA->name==dstA->type) // "unsigned long:int" <-> "unsigned long int:bla"
      {
        srcA->type+=" "+srcA->name;
        srcA->name=dstA->name;
      }
      else if (dstA->type+" "+dstA->name==srcA->type) // "unsigned long int bla" <-> "unsigned long int"
      {
        dstA->type+=" "+dstA->name;
        dstA->name=srcA->name;
      }
      else if (srcA->name.isEmpty() && !dstA->name.isEmpty())
      {
        srcA->name = dstA->name;
      }
      else if (dstA->name.isEmpty() && !srcA->name.isEmpty())
      {
        dstA->name = srcA->name;
      }
    }
    int i1=srcA->type.find("::"),
        i2=dstA->type.find("::"),
        j1=srcA->type.length()-i1-2,
        j2=dstA->type.length()-i2-2;
    if (i1!=-1 && i2==-1 && srcA->type.right(j1)==dstA->type)
    {
      //printf("type: `%s':=`%s'\n",dstA->type.data(),srcA->type.data());
      //printf("name: `%s':=`%s'\n",dstA->name.data(),srcA->name.data());
      dstA->type = srcA->type.left(i1+2)+dstA->type;
      dstA->name = dstA->name.copy();
    }
    else if (i1==-1 && i2!=-1 && dstA->type.right(j2)==srcA->type)
    {
      //printf("type: `%s':=`%s'\n",srcA->type.data(),dstA->type.data());
      //printf("name: `%s':=`%s'\n",dstA->name.data(),srcA->name.data());
      srcA->type = dstA->type.left(i2+2)+srcA->type;
      srcA->name = dstA->name.copy();
    }
    if (srcA->docs.isEmpty() && !dstA->docs.isEmpty())
    {
      srcA->docs = dstA->docs.copy();
    }
    else if (dstA->docs.isEmpty() && !srcA->docs.isEmpty())
    {
      dstA->docs = srcA->docs.copy();
    }
    //printf("Merge argument `%s|%s' `%s|%s'\n",
    //  srcA->type.data(),srcA->name.data(),
    //  dstA->type.data(),dstA->name.data());
  }
}

static void findMembersWithSpecificName(MemberName *mn,
                                        const char *args,
                                        bool checkStatics,
                                        FileDef *currentFile,
                                        bool checkCV,
                                        QList<MemberDef> &members)
{
  //printf("  Function with global scope name `%s' args=`%s'\n",
  //       mn->memberName(),args);
  MemberListIterator mli(*mn);
  MemberDef *md;
  for (mli.toFirst();(md=mli.current());++mli)
  {
    FileDef  *fd=md->getFileDef();
    GroupDef *gd=md->getGroupDef();
    //printf("  md->name()=`%s' md->args=`%s' fd=%p gd=%p current=%p\n",
    //    md->name().data(),args,fd,gd,currentFile);
    if (
        ((gd && gd->isLinkable()) || (fd && fd->isLinkable())) && 
        md->getNamespaceDef()==0 && md->isLinkable() &&
        (!checkStatics || (!md->isStatic() && !md->isDefine()) || 
         currentFile==0 || fd==currentFile) // statics must appear in the same file
       )
    {
      //printf("    fd=%p gd=%p args=`%s'\n",fd,gd,args);
      bool match=TRUE;
      ArgumentList *argList=0;
      if (args && !md->isDefine() && strcmp(args,"()")!=0)
      {
        argList=new ArgumentList;
        LockingPtr<ArgumentList> mdAl = md->argumentList();
        stringToArgumentList(args,argList);
        match=matchArguments2(
            md->getOuterScope(),fd,mdAl.pointer(),
            Doxygen::globalScope,fd,argList,
            checkCV); 
        delete argList; argList=0;
      }
      if (match) 
      {
        //printf("Found match!\n");
        members.append(md);
      }
    }
  }
}

/*!
 * Searches for a member definition given its name `memberName' as a string.
 * memberName may also include a (partial) scope to indicate the scope
 * in which the member is located.
 *
 * The parameter `scName' is a string representing the name of the scope in 
 * which the link was found.
 *
 * In case of a function args contains a string representation of the 
 * argument list. Passing 0 means the member has no arguments. 
 * Passing "()" means any argument list will do, but "()" is preferred.
 *
 * The function returns TRUE if the member is known and documented or
 * FALSE if it is not.
 * If TRUE is returned parameter `md' contains a pointer to the member 
 * definition. Furthermore exactly one of the parameter `cd', `nd', or `fd' 
 * will be non-zero:
 *   - if `cd' is non zero, the member was found in a class pointed to by cd.
 *   - if `nd' is non zero, the member was found in a namespace pointed to by nd.
 *   - if `fd' is non zero, the member was found in the global namespace of
 *     file fd.
 */
bool getDefs(const QCString &scName,const QCString &memberName, 
    const char *args,
    MemberDef *&md, 
    ClassDef *&cd, FileDef *&fd, NamespaceDef *&nd, GroupDef *&gd,
    bool forceEmptyScope,
    FileDef *currentFile,
    bool checkCV
    )
{
  fd=0, md=0, cd=0, nd=0, gd=0;
  if (memberName.isEmpty()) return FALSE; /* empty name => nothing to link */

  QCString scopeName=scName;
  //printf("Search for name=%s args=%s in scope=%s\n",
  //          memberName.data(),args,scopeName.data());

  int is,im=0,pm=0;
  // strip common part of the scope from the scopeName
  while ((is=scopeName.findRev("::"))!=-1 && 
      (im=memberName.find("::",pm))!=-1 &&
      (scopeName.right(scopeName.length()-is-2)==memberName.mid(pm,im-pm))
      )
  {
    scopeName=scopeName.left(is); 
    pm=im+2;
  }
  //printf("result after scope corrections scope=%s name=%s\n",
  //          scopeName.data(),memberName.data());

  QCString mName=memberName;
  QCString mScope;
  if (memberName.left(9)!="operator " && // treat operator conversion methods
      // as a special case
      (im=memberName.findRev("::"))!=-1 && 
      im<(int)memberName.length()-2 // not A::
     )
  {
    mScope=memberName.left(im); 
    mName=memberName.right(memberName.length()-im-2);
  }

  // handle special the case where both scope name and member scope are equal
  if (mScope==scopeName) scopeName.resize(0);

  //printf("mScope=`%s' mName=`%s'\n",mScope.data(),mName.data());

  MemberName *mn = Doxygen::memberNameSDict->find(mName);
  //printf("mName=%s mn=%p\n",mName.data(),mn);
  if (!forceEmptyScope && mn && !(scopeName.isEmpty() && mScope.isEmpty()))
  {
    //printf("  >member name '%s' found\n",mName.data());
    int scopeOffset=scopeName.length();
    do
    {
      QCString className = scopeName.left(scopeOffset);
      if (!className.isEmpty() && !mScope.isEmpty())
      {
        className+="::"+mScope;
      }
      else if (!mScope.isEmpty())
      {
        className=mScope;
      }

      ClassDef *fcd=getResolvedClass(Doxygen::globalScope,0,className);
      //printf("Trying class scope %s: %p\n",className.data(),fcd);
      // todo: fill in correct fileScope!
      if (fcd &&  // is it a documented class
          fcd->isLinkable() 
         )
      {
        //printf("  Found fcd=%p\n",fcd);
        MemberListIterator mmli(*mn);
        MemberDef *mmd;
        int mdist=maxInheritanceDepth; 
        ArgumentList *argList=0;
        if (args)
        {
          argList=new ArgumentList;
          stringToArgumentList(args,argList);
        }
        for (mmli.toFirst();(mmd=mmli.current());++mmli)
        {
          //if (mmd->isLinkable())
          //{
          LockingPtr<ArgumentList> mmdAl = mmd->argumentList();
          bool match=args==0 || 
            matchArguments2(mmd->getOuterScope(),mmd->getFileDef(),mmdAl.pointer(),
                fcd,fcd->getFileDef(),argList,
                checkCV
                );  
          //printf("match=%d\n",match);
          if (match)
          {
            ClassDef *mcd=mmd->getClassDef();
            if (mcd)
            {
              int m=minClassDistance(fcd,mcd);
              if (m<mdist && mcd->isLinkable())
              {
                mdist=m;
                cd=mcd;
                md=mmd;
              }
            }
          }
          //}
        }
        if (argList)
        {
          delete argList; argList=0;
        }
        if (mdist==maxInheritanceDepth && args && strcmp(args,"()")==0)
          // no exact match found, but if args="()" an arbitrary member will do
        {
          //printf("  >Searching for arbitrary member\n");
          for (mmli.toFirst();(mmd=mmli.current());++mmli)
          {
            //if (mmd->isLinkable())
            //{
            ClassDef *mcd=mmd->getClassDef();
            //printf("  >Class %s found\n",mcd->name().data());
            if (mcd)
            {
              int m=minClassDistance(fcd,mcd);
              if (m<mdist /* && mcd->isLinkable()*/ )
              {
                //printf("Class distance %d\n",m);
                mdist=m;
                cd=mcd;
                md=mmd;
              }
            }
            //}
          }
        }
        //printf("  >Succes=%d\n",mdist<maxInheritanceDepth);
        if (mdist<maxInheritanceDepth) 
        {
          if (!md->isLinkable()) 
          {
            md=0; // avoid returning things we cannot link to
            cd=0;
            return FALSE; // match found, but was not linkable
          }
          else
          {
            gd=md->getGroupDef();
            if (gd) cd=0;
            return TRUE; /* found match */
          }
        }
      } 
      /* go to the parent scope */
      if (scopeOffset==0)
      {
        scopeOffset=-1;
      }
      else if ((scopeOffset=scopeName.findRev("::",scopeOffset-1))==-1)
      {
        scopeOffset=0;
      }
    } while (scopeOffset>=0);

  }
  if (mn && scopeName.isEmpty() && mScope.isEmpty()) // Maybe a related function?
  {
    MemberListIterator mmli(*mn);
    MemberDef *mmd, *fuzzy_mmd = 0;
    ArgumentList *argList = 0;
    bool hasEmptyArgs = args && strcmp(args, "()") == 0;

    if (args)
      stringToArgumentList(args, argList = new ArgumentList);

    for (mmli.toFirst(); (mmd = mmli.current()); ++mmli)
    {
      if (!mmd->isLinkable() || (!mmd->isRelated() && !mmd->isForeign()) ||
           !mmd->getClassDef())
        continue;

      if (!args) break;

      QCString className = mmd->getClassDef()->name();

      LockingPtr<ArgumentList> mmdAl = mmd->argumentList();
      if (matchArguments2(mmd->getOuterScope(),mmd->getFileDef(),mmdAl.pointer(),
            Doxygen::globalScope,mmd->getFileDef(),argList,
            checkCV
            )
         ) break;

      if (!fuzzy_mmd && hasEmptyArgs)
        fuzzy_mmd = mmd;
    }

    if (argList) delete argList, argList = 0;

    mmd = mmd ? mmd : fuzzy_mmd;

    if (mmd)
    {
      md = mmd;
      cd = mmd->getClassDef();
      return TRUE;
    }
  }


  // maybe an namespace, file or group member ?
  //printf("Testing for global function scopeName=`%s' mScope=`%s' :: mName=`%s'\n",
  //              scopeName.data(),mScope.data(),mName.data());
  if ((mn=Doxygen::functionNameSDict->find(mName))) // name is known
  {
    //printf("  >function name found\n");
    NamespaceDef *fnd=0;
    int scopeOffset=scopeName.length();
    do
    {
      QCString namespaceName = scopeName.left(scopeOffset);
      if (!namespaceName.isEmpty() && !mScope.isEmpty())
      {
        namespaceName+="::"+mScope;
      }
      else if (!mScope.isEmpty())
      {
        namespaceName=mScope.copy();
      }
      //printf("Trying namespace %s\n",namespaceName.data());
      if (!namespaceName.isEmpty() && 
          (fnd=Doxygen::namespaceSDict->find(namespaceName)) &&
          fnd->isLinkable()
         )
      {
        //printf("Function inside existing namespace `%s'\n",namespaceName.data());
        bool found=FALSE;
        MemberListIterator mmli(*mn);
        MemberDef *mmd;
        for (mmli.toFirst();((mmd=mmli.current()) && !found);++mmli)
        {
          //printf("mmd->getNamespaceDef()=%p fnd=%p\n",
          //    mmd->getNamespaceDef(),fnd);
          if (mmd->getNamespaceDef()==fnd /* && mmd->isLinkable() */ )
          { // namespace is found
            bool match=TRUE;
            ArgumentList *argList=0;
            if (args && strcmp(args,"()")!=0)
            {
              argList=new ArgumentList;
              LockingPtr<ArgumentList> mmdAl = mmd->argumentList();
              stringToArgumentList(args,argList);
              match=matchArguments2(
                  mmd->getOuterScope(),mmd->getFileDef(),mmdAl.pointer(),
                  fnd,mmd->getFileDef(),argList,
                  checkCV); 
            }
            if (match)
            {
              nd=fnd;
              md=mmd;
              found=TRUE;
            }
            if (args)
            {
              delete argList; argList=0;
            }
          }
        }
        if (!found && args && !strcmp(args,"()")) 
          // no exact match found, but if args="()" an arbitrary 
          // member will do
        {
          for (mmli.toFirst();((mmd=mmli.current()) && !found);++mmli)
          {
            if (mmd->getNamespaceDef()==fnd /*&& mmd->isLinkable() */ )
            {
              nd=fnd;
              md=mmd;
              found=TRUE;
            }
          }
        }
        if (found) 
        {
          if (!md->isLinkable()) 
          {
            md=0; // avoid returning things we cannot link to
            nd=0;
            return FALSE; // match found but not linkable
          }
          else
          {
            gd=md->getGroupDef();
            if (gd && gd->isLinkable()) nd=0; else gd=0;
            return TRUE;
          }
        }
      }
      if (scopeOffset==0)
      {
        scopeOffset=-1;
      }
      else if ((scopeOffset=scopeName.findRev("::",scopeOffset-1))==-1)
      {
        scopeOffset=0;
      }
    } while (scopeOffset>=0);

    //else // no scope => global function
    {
      QList<MemberDef> members;
      // search for matches with strict static checking
      findMembersWithSpecificName(mn,args,TRUE,currentFile,checkCV,members);
      if (members.count()==0) // nothing found
      {
        // search again without strict static checking
        findMembersWithSpecificName(mn,args,FALSE,currentFile,checkCV,members);
      }
      if (members.count()!=1 && args && !strcmp(args,"()"))
      {
        // no exact match found, but if args="()" an arbitrary 
        // member will do
        md=mn->last();
        while (md /* && md->isLinkable()*/)
        {
          //printf("Found member `%s'\n",md->name().data());
          //printf("member is linkable md->name()=`%s'\n",md->name().data());
          fd=md->getFileDef();
          gd=md->getGroupDef();
          if (
              (gd && gd->isLinkable()) || (fd && fd->isLinkable()) 
             )
          {
            members.append(md);
          }
          md=mn->prev();
        }
      }
      //printf("found %d candidate members\n",members.count());
      if (members.count()>0) // at least one match
      {
        md=members.last();
      }
      if (md) // found a matching global member
      {
        fd=md->getFileDef();
        gd=md->getGroupDef();
        //printf("fd=%p gd=%p gd->isLinkable()=%d\n",fd,gd,gd->isLinkable());
        if (gd && gd->isLinkable()) fd=0; else gd=0;
        return TRUE;
      }
    }
  }

  // no nothing found
  return FALSE;
}

/*!
 * Searches for a scope definition given its name as a string via parameter
 * `scope'. 
 *
 * The parameter `docScope' is a string representing the name of the scope in 
 * which the `scope' string was found.
 *
 * The function returns TRUE if the scope is known and documented or
 * FALSE if it is not.
 * If TRUE is returned exactly one of the parameter `cd', `nd' 
 * will be non-zero:
 *   - if `cd' is non zero, the scope was a class pointed to by cd.
 *   - if `nd' is non zero, the scope was a namespace pointed to by nd.
 */
static bool getScopeDefs(const char *docScope,const char *scope,
    ClassDef *&cd, NamespaceDef *&nd)
{
  cd=0;nd=0;

  QCString scopeName=scope;
  //printf("getScopeDefs: docScope=`%s' scope=`%s'\n",docScope,scope);
  if (scopeName.isEmpty()) return FALSE;

  bool explicitGlobalScope=FALSE;
  if (scopeName.at(0)==':' && scopeName.at(1)==':')
  {
    scopeName=scopeName.right(scopeName.length()-2);  
    explicitGlobalScope=TRUE;
  }

  QCString docScopeName=docScope;
  int scopeOffset=explicitGlobalScope ? 0 : docScopeName.length();

  do // for each possible docScope (from largest to and including empty)
  {
    QCString fullName=scopeName.copy();
    if (scopeOffset>0) fullName.prepend(docScopeName.left(scopeOffset)+"::");

    if (((cd=getClass(fullName)) ||         // normal class
         (cd=getClass(fullName+"-p")) ||    // ObjC protocol
         (cd=getClass(fullName+"-g"))       // C# generic
        ) && cd->isLinkable())
    {
      return TRUE; // class link written => quit 
    }
    else if ((nd=Doxygen::namespaceSDict->find(fullName)) && nd->isLinkable())
    {
      return TRUE; // namespace link written => quit 
    }
    if (scopeOffset==0)
    {
      scopeOffset=-1;
    }
    else if ((scopeOffset=docScopeName.findRev("::",scopeOffset-1))==-1)
    {
      scopeOffset=0;
    }
  } while (scopeOffset>=0);

  return FALSE;
}

static bool isLowerCase(QCString &s)
{
  uchar *p=(uchar*)s.data();
  if (p==0) return TRUE;
  int c;
  while ((c=*p++)) if (!islower(c)) return FALSE;
  return TRUE; 
}

/*! Returns an object to reference to given its name and context 
 *  @post return value TRUE implies *resContext!=0 or *resMember!=0
 */
bool resolveRef(/* in */  const char *scName,
    /* in */  const char *name,
    /* in */  bool inSeeBlock,
    /* out */ Definition **resContext,
    /* out */ MemberDef  **resMember,
    bool lookForSpecialization,
    FileDef *currentFile,
    bool checkScope
    )
{
  QCString tsName = name;
  //bool memberScopeFirst = tsName.find('#')!=-1;
  QCString fullName = substitute(tsName,"#","::");
  fullName = removeRedundantWhiteSpace(substitute(fullName,".","::"));

  int bracePos=fullName.findRev('('); // reverse is needed for operator()(...)
  int endNamePos=bracePos!=-1 ? bracePos : fullName.length();
  int scopePos=fullName.findRev("::",endNamePos);
  bool explicitScope = fullName.left(2)=="::" &&   // ::scope or #scope
                       (scopePos>2 ||              // ::N::A
                        tsName.left(2)=="::" ||    // ::foo in local scope
                        scName==0                  // #foo  in global scope
                       );

  // default result values
  *resContext=0;
  *resMember=0;

  if (bracePos==-1) // simple name
  {
    ClassDef *cd=0;
    NamespaceDef *nd=0;

    // the following if() was commented out for releases in the range 
    // 1.5.2 to 1.6.1, but has been restored as a result of bug report 594787.
    if (!inSeeBlock && scopePos==-1 && isLowerCase(tsName))
    { // link to lower case only name => do not try to autolink 
      return FALSE;
    }

    //printf("scName=%s fullName=%s\n",scName,fullName.data());

    // check if this is a class or namespace reference
    if (scName!=fullName && getScopeDefs(scName,fullName,cd,nd))
    {
      if (cd) // scope matches that of a class
      {
        *resContext = cd;
      }
      else // scope matches that of a namespace
      {
        ASSERT(nd!=0);
        *resContext = nd;
      }
      return TRUE;
    }
    else if (scName==fullName || (!inSeeBlock && scopePos==-1)) 
      // nothing to link => output plain text
    {
      //printf("found scName=%s fullName=%s scName==fullName=%d "
      //    "inSeeBlock=%d scopePos=%d!\n",
      //    scName,fullName.data(),scName==fullName,inSeeBlock,scopePos);
      return FALSE;
    }
    // continue search...
  }

  // extract userscope+name
  QCString nameStr=fullName.left(endNamePos);
  if (explicitScope) nameStr=nameStr.mid(2);

  // extract arguments
  QCString argsStr;
  if (bracePos!=-1) argsStr=fullName.right(fullName.length()-bracePos);

  // strip template specifier
  // TODO: match against the correct partial template instantiation 
  int templPos=nameStr.find('<');
  bool tryUnspecializedVersion = FALSE;
  if (templPos!=-1 && nameStr.find("operator")==-1)
  {
    int endTemplPos=nameStr.findRev('>');
    if (endTemplPos!=-1)
    {
      if (!lookForSpecialization)
      {
        nameStr=nameStr.left(templPos)+nameStr.right(nameStr.length()-endTemplPos-1);
      }
      else
      {
        tryUnspecializedVersion = TRUE;
      }
    }
  }

  QCString scopeStr=scName;

  MemberDef    *md = 0;
  ClassDef     *cd = 0;
  FileDef      *fd = 0;
  NamespaceDef *nd = 0;
  GroupDef     *gd = 0;

  // check if nameStr is a member or global.
  //printf("getDefs(scope=%s,name=%s,args=%s checkScope=%d)\n",
  //    scopeStr.data(),nameStr.data(),argsStr.data(),checkScope);
  if (getDefs(scopeStr,nameStr,argsStr,
        md,cd,fd,nd,gd,
        //scopePos==0 && !memberScopeFirst, // forceEmptyScope
        explicitScope, // replaces prev line due to bug 600829
        currentFile,
        TRUE                              // checkCV
        )
     )
  {
    if (checkScope && md && !cd && !nd && (!scopeStr.isEmpty() || nameStr.find("::")>0))
    {
      // we did find a member, but it is a global one while we were explicitly 
      // looking for a scoped variable. See bug 616387 for an example why this check is needed.
      // note we do need to support autolinking to "::symbol" hence the >0
      *resContext=0;
      *resMember=0;
      return FALSE;
    }
    //printf("after getDefs md=%p cd=%p fd=%p nd=%p gd=%p\n",md,cd,fd,nd,gd);
    if      (md) { *resMember=md; *resContext=md; }
    else if (cd) *resContext=cd;
    else if (nd) *resContext=nd;
    else if (fd) *resContext=fd;
    else if (gd) *resContext=gd;
    else         { *resContext=0; *resMember=0; return FALSE; }
    //printf("member=%s (md=%p) anchor=%s linkable()=%d context=%s\n",
    //    md->name().data(),md,md->anchor().data(),md->isLinkable(),(*resContext)->name().data());
    return TRUE;
  }
  else if (inSeeBlock && !nameStr.isEmpty() && (gd=Doxygen::groupSDict->find(nameStr)))
  { // group link
    *resContext=gd;
    return TRUE;
  }
  else if (tsName.find('.')!=-1) // maybe a link to a file
  {
    bool ambig;
    fd=findFileDef(Doxygen::inputNameDict,tsName,ambig);
    if (fd && !ambig)
    {
      *resContext=fd;
      return TRUE;
    }
  }

  if (tryUnspecializedVersion)
  {
    return resolveRef(scName,name,inSeeBlock,resContext,resMember,FALSE,0,checkScope);
  }

  return FALSE;
}

QCString linkToText(const char *link,bool isFileName)
{
  static bool optimizeOutputJava = Config_getBool("OPTIMIZE_OUTPUT_JAVA");
  QCString result=link;
  if (!result.isEmpty())
  {
    // replace # by ::
    result=substitute(result,"#","::");
    // replace . by ::
    if (!isFileName) result=substitute(result,".","::");
    // strip leading :: prefix if present
    if (result.at(0)==':' && result.at(1)==':')
    {
      result=result.right(result.length()-2);
    }
    if (optimizeOutputJava)
    {
      result=substitute(result,"::",".");
    }
  }
  return result;
}

/*
 * generate a reference to a class, namespace or member.
 * `scName' is the name of the scope that contains the documentation 
 * string that is returned.
 * `name' is the name that we want to link to.
 * `name' may have five formats:
 *    1) "ScopeName"
 *    2) "memberName()"    one of the (overloaded) function or define 
 *                         with name memberName.
 *    3) "memberName(...)" a specific (overloaded) function or define 
 *                         with name memberName
 *    4) "::name           a global variable or define
 *    4) "\#memberName     member variable, global variable or define
 *    5) ("ScopeName::")+"memberName()" 
 *    6) ("ScopeName::")+"memberName(...)" 
 *    7) ("ScopeName::")+"memberName" 
 * instead of :: the \# symbol may also be used.
 */

bool generateRef(OutputDocInterface &od,const char *scName,
    const char *name,bool inSeeBlock,const char *rt)
{
  //printf("generateRef(scName=%s,name=%s,rt=%s)\n",scName,name,rt);

  Definition *compound;
  MemberDef *md;

  // create default link text
  QCString linkText = linkToText(rt,FALSE);

  if (resolveRef(scName,name,inSeeBlock,&compound,&md))
  {
    if (md && md->isLinkable()) // link to member
    {
      od.writeObjectLink(md->getReference(),
          md->getOutputFileBase(),
          md->anchor(),linkText);
      // generate the page reference (for LaTeX)
      if (!md->isReference())
      {
        writePageRef(od,md->getOutputFileBase(),md->anchor());
      }
      return TRUE;
    }
    else if (compound && compound->isLinkable()) // link to compound
    {
      if (rt==0 && compound->definitionType()==Definition::TypeGroup)
      {
        linkText=((GroupDef *)compound)->groupTitle();
      }
      if (compound && compound->definitionType()==Definition::TypeFile)
      {
        linkText=linkToText(rt,TRUE);
      }
      od.writeObjectLink(compound->getReference(),
          compound->getOutputFileBase(),
          0,linkText);
      if (!compound->isReference())
      {
        writePageRef(od,compound->getOutputFileBase(),0);
      }
      return TRUE;
    }
  }
  od.docify(linkText);
  return FALSE;
}

bool resolveLink(/* in */ const char *scName,
    /* in */ const char *lr,
    /* in */ bool inSeeBlock,
    /* out */ Definition **resContext,
    /* out */ QCString &resAnchor
    )
{
  *resContext=0;

  QCString linkRef=lr;
  //printf("ResolveLink linkRef=%s\n",lr);
  FileDef  *fd;
  GroupDef *gd;
  PageDef  *pd;
  ClassDef *cd;
  DirDef   *dir;
  NamespaceDef *nd;
  bool ambig;
  if (linkRef.isEmpty()) // no reference name!
  {
    return FALSE;
  }
  else if ((pd=Doxygen::pageSDict->find(linkRef))) // link to a page
  {
    GroupDef *gd = pd->getGroupDef();
    if (gd)
    {
      SectionInfo *si=0;
      if (!pd->name().isEmpty()) si=Doxygen::sectionDict[pd->name()];
      *resContext=gd;
      if (si) resAnchor = si->label;
    }
    else
    {
      *resContext=pd;
    }
    return TRUE;
  }
  else if ((pd=Doxygen::exampleSDict->find(linkRef))) // link to an example
  {
    *resContext=pd;
    return TRUE;
  }
  else if ((gd=Doxygen::groupSDict->find(linkRef))) // link to a group
  {
    *resContext=gd;
    return TRUE;
  }
  else if ((fd=findFileDef(Doxygen::inputNameDict,linkRef,ambig)) // file link
      && fd->isLinkable())
  {
    *resContext=fd;
    return TRUE;
  }
  else if ((cd=getClass(linkRef))) // class link
  {
    *resContext=cd;
    return TRUE;
  }
  else if ((cd=getClass(linkRef+"-p"))) // Obj-C protocol link
  {
    *resContext=cd;
    return TRUE;
  }
  else if ((cd=getClass(linkRef+"-g"))) // C# generic link
  {
    *resContext=cd;
    return TRUE;
  }
  else if ((nd=Doxygen::namespaceSDict->find(linkRef)))
  {
    *resContext=nd;
    return TRUE;
  }
  else if ((dir=Doxygen::directories->find(QFileInfo(linkRef).absFilePath()+"/"))
      && dir->isLinkable()) // TODO: make this location independent like filedefs
  {
    *resContext=dir;
    return TRUE;
  }
  else // probably a member reference
  {
    MemberDef *md;
    bool res = resolveRef(scName,lr,inSeeBlock,resContext,&md);
    if (md) resAnchor=md->anchor();
    return res;
  }
}


//----------------------------------------------------------------------
// General function that generates the HTML code for a reference to some
// file, class or member from text `lr' within the context of class `clName'. 
// This link has the text 'lt' (if not 0), otherwise `lr' is used as a
// basis for the link's text.
// returns TRUE if a link could be generated.

bool generateLink(OutputDocInterface &od,const char *clName,
    const char *lr,bool inSeeBlock,const char *lt)
{
  //printf("generateLink(clName=%s,lr=%s,lr=%s)\n",clName,lr,lt);
  Definition *compound;
  //PageDef *pageDef=0;
  QCString anchor,linkText=linkToText(lt,FALSE);
  //printf("generateLink linkText=%s\n",linkText.data());
  if (resolveLink(clName,lr,inSeeBlock,&compound,anchor))
  {
    if (compound) // link to compound
    {
      if (lt==0 && anchor.isEmpty() &&                      /* compound link */
          compound->definitionType()==Definition::TypeGroup /* is group */ 
         )
      {
        linkText=((GroupDef *)compound)->groupTitle(); // use group's title as link
      }
      else if (compound->definitionType()==Definition::TypeFile)
      {
        linkText=linkToText(lt,TRUE); 
      }
      od.writeObjectLink(compound->getReference(),
          compound->getOutputFileBase(),anchor,linkText);
      if (!compound->isReference())
      {
        writePageRef(od,compound->getOutputFileBase(),anchor);
      }
    }
    else
    {
      err("%s:%d: Internal error: resolveLink successful but no compound found!",__FILE__,__LINE__);
    }
    return TRUE;
  }
  else // link could not be found
  {
    od.docify(linkText);
    return FALSE;
  }
}

void generateFileRef(OutputDocInterface &od,const char *name,const char *text)
{
  //printf("generateFileRef(%s,%s)\n",name,text);
  QCString linkText = text ? text : name;
  //FileInfo *fi;
  FileDef *fd;
  bool ambig;
  if ((fd=findFileDef(Doxygen::inputNameDict,name,ambig)) && 
      fd->isLinkable()) 
    // link to documented input file
    od.writeObjectLink(fd->getReference(),fd->getOutputFileBase(),0,linkText);
  else
    od.docify(linkText); 
}

//----------------------------------------------------------------------

#if 0
QCString substituteClassNames(const QCString &s)
{
  int i=0,l,p;
  QCString result;
  if (s.isEmpty()) return result;
  QRegExp r("[a-z_A-Z][a-z_A-Z0-9]*");
  while ((p=r.match(s,i,&l))!=-1)
  {
    QCString *subst;
    if (p>i) result+=s.mid(i,p-i);
    if ((subst=substituteDict[s.mid(p,l)]))
    {
      result+=*subst;
    }
    else
    {
      result+=s.mid(p,l);
    }
    i=p+l;
  }
  result+=s.mid(i,s.length()-i);
  return result;
}
#endif

//----------------------------------------------------------------------
// substitute all occurrences of `src' in `s' by `dst'

QCString substitute(const char *s,const char *src,const char *dst)
{
  if (s==0 || src==0) return s;
  const char *p, *q;
  int srcLen = strlen(src);
  int dstLen = dst ? strlen(dst) : 0;
  int resLen;
  if (srcLen!=dstLen)
  {
    int count;
    for (count=0, p=s; (q=strstr(p,src))!=0; p=q+srcLen) count++;
    resLen = p-s+strlen(p)+count*(dstLen-srcLen);
  }
  else // result has same size as s
  {
    resLen = strlen(s);
  }
  QCString result(resLen+1);
  char *r;
  for (r=result.data(), p=s; (q=strstr(p,src))!=0; p=q+srcLen)
  {
    int l = (int)(q-p);
    memcpy(r,p,l);
    r+=l;
    if (dst) memcpy(r,dst,dstLen);
    r+=dstLen;
  }
  strcpy(r,p);
  //printf("substitute(%s,%s,%s)->%s\n",s,src,dst,result.data());
  return result;
}

//----------------------------------------------------------------------

struct FindFileCacheElem
{
  FindFileCacheElem(FileDef *fd,bool ambig) : fileDef(fd), isAmbig(ambig) {}
  FileDef *fileDef;
  bool isAmbig;
};

static QCache<FindFileCacheElem> g_findFileDefCache(5000);

FileDef *findFileDef(const FileNameDict *fnDict,const char *n,bool &ambig)
{
  ambig=FALSE;
  if (n==0) return 0;

  QCString key;
  key.sprintf("%p:",fnDict);
  key+=n;

  g_findFileDefCache.setAutoDelete(TRUE);
  FindFileCacheElem *cachedResult = g_findFileDefCache.find(key);
  if (cachedResult)
  {
    ambig = cachedResult->isAmbig;
    return cachedResult->fileDef;
  }
  else
  {
    cachedResult = new FindFileCacheElem(0,FALSE);
  }

  QCString name=convertToQCString(QDir::cleanDirPath(n));
  QCString path;
  int slashPos;
  FileName *fn;
  if (name.isEmpty()) goto exit;
  slashPos=QMAX(name.findRev('/'),name.findRev('\\'));
  if (slashPos!=-1)
  {
    path=name.left(slashPos+1);
    name=name.right(name.length()-slashPos-1); 
  }
  if (name.isEmpty()) goto exit;
  if ((fn=(*fnDict)[name]))
  {
    if (fn->count()==1)
    {
      FileDef *fd = fn->getFirst();
      if (path.isEmpty() || fd->getPath().right(path.length())==path)
      {
        cachedResult->fileDef = fd;
        g_findFileDefCache.insert(key,cachedResult);
        return fd;
      }
    }
    else // file name alone is ambiguous
    {
      int count=0;
      FileNameIterator fni(*fn);
      FileDef *fd;
      FileDef *lastMatch=0;
      QCString pathStripped = stripFromIncludePath(path);
      for (fni.toFirst();(fd=fni.current());++fni)
      {
        QCString fdStripPath = stripFromIncludePath(fd->getPath());
        if (path.isEmpty() || fdStripPath.right(pathStripped.length())==pathStripped) 
        { 
          count++; 
          lastMatch=fd; 
        }
      }

      ambig=(count>1);
      cachedResult->isAmbig = ambig;
      cachedResult->fileDef = lastMatch;
      g_findFileDefCache.insert(key,cachedResult);
      return lastMatch;
    }
  }
  else
  {
    //printf("not found!\n");
  }
exit:
  g_findFileDefCache.insert(key,cachedResult);
  return 0;
}

//----------------------------------------------------------------------

QCString showFileDefMatches(const FileNameDict *fnDict,const char *n)
{
  QCString result;
  QCString name=n;
  QCString path;
  int slashPos=QMAX(name.findRev('/'),name.findRev('\\'));
  if (slashPos!=-1)
  {
    path=name.left(slashPos+1);
    name=name.right(name.length()-slashPos-1); 
  }
  FileName *fn;
  if ((fn=(*fnDict)[name]))
  {
    FileNameIterator fni(*fn);
    FileDef *fd;
    for (fni.toFirst();(fd=fni.current());++fni)
    {
      if (path.isEmpty() || fd->getPath().right(path.length())==path)
      {
        result+="   "+fd->absFilePath()+"\n";
      }
    }
  }
  return result;
}

//----------------------------------------------------------------------

QCString substituteKeywords(const QCString &s,const char *title,const QCString &relPath)
{
  QCString result = s.copy();
  if (title) result = substitute(result,"$title",title);
  result = substitute(result,"$datetime",dateToString(TRUE));
  result = substitute(result,"$date",dateToString(FALSE));
  result = substitute(result,"$year",yearToString());
  result = substitute(result,"$doxygenversion",versionString);
  result = substitute(result,"$projectname",Config_getString("PROJECT_NAME"));
  result = substitute(result,"$projectnumber",Config_getString("PROJECT_NUMBER"));
  result = substitute(result,"$relpath$",relPath);
  return result;
}

//----------------------------------------------------------------------

/*! Returns the character index within \a name of the first prefix
 *  in Config_getList("IGNORE_PREFIX") that matches \a name at the left hand side,
 *  or zero if no match was found
 */ 
int getPrefixIndex(const QCString &name)
{
  if (name.isEmpty()) return 0;
  static QStrList &sl = Config_getList("IGNORE_PREFIX");
  char *s = sl.first();
  while (s)
  {
    const char *ps=s;
    const char *pd=name.data();
    int i=0;
    while (*ps!=0 && *pd!=0 && *ps==*pd) ps++,pd++,i++;
    if (*ps==0 && *pd!=0)
    {
      return i;
    }
    s = sl.next();
  }
  return 0;
}

//----------------------------------------------------------------------------

static void initBaseClassHierarchy(BaseClassList *bcl)
{
  if (bcl==0) return;
  BaseClassListIterator bcli(*bcl);
  for ( ; bcli.current(); ++bcli)
  {
    ClassDef *cd=bcli.current()->classDef;
    if (cd->baseClasses()==0) // no base classes => new root
    {
      initBaseClassHierarchy(cd->baseClasses());
    }
    cd->visited=FALSE;
  }
}

//----------------------------------------------------------------------------

void initClassHierarchy(ClassSDict *cl)
{
  ClassSDict::Iterator cli(*cl);
  ClassDef *cd;
  for ( ; (cd=cli.current()); ++cli)
  {
    cd->visited=FALSE;
    initBaseClassHierarchy(cd->baseClasses());
  }
}

//----------------------------------------------------------------------------

bool hasVisibleRoot(BaseClassList *bcl)
{
  if (bcl)
  {
    BaseClassListIterator bcli(*bcl);
    for ( ; bcli.current(); ++bcli)
    {
      ClassDef *cd=bcli.current()->classDef;
      if (cd->isVisibleInHierarchy()) return TRUE;
      hasVisibleRoot(cd->baseClasses());
    }
  }
  return FALSE;
}

//----------------------------------------------------------------------

// note that this function is not reentrant due to the use of static strBuf!
QCString escapeCharsInString(const char *name,bool allowDots,bool allowUnderscore)
{
  static bool caseSenseNames = Config_getBool("CASE_SENSE_NAMES");
  static StrBuf strBuf;
  strBuf.clear();
  char c;
  const char *p=name;
  while ((c=*p++)!=0)
  {
    switch(c)
    {
      case '_': if (allowUnderscore) strBuf.addChar('_'); else strBuf.addStr("__"); break;
      case '-': strBuf.addChar('-');  break;
      case ':': strBuf.addStr("_1"); break;
      case '/': strBuf.addStr("_2"); break;
      case '<': strBuf.addStr("_3"); break;
      case '>': strBuf.addStr("_4"); break;
      case '*': strBuf.addStr("_5"); break;
      case '&': strBuf.addStr("_6"); break;
      case '|': strBuf.addStr("_7"); break;
      case '.': if (allowDots) strBuf.addChar('.'); else strBuf.addStr("_8"); break;
      case '!': strBuf.addStr("_9"); break;
      case ',': strBuf.addStr("_00"); break;
      case ' ': strBuf.addStr("_01"); break;
      case '{': strBuf.addStr("_02"); break;
      case '}': strBuf.addStr("_03"); break;
      case '?': strBuf.addStr("_04"); break;
      case '^': strBuf.addStr("_05"); break;
      case '%': strBuf.addStr("_06"); break;
      case '(': strBuf.addStr("_07"); break;
      case ')': strBuf.addStr("_08"); break;
      case '+': strBuf.addStr("_09"); break;
      case '=': strBuf.addStr("_0A"); break;
      default: 
                if (c<0)
                {
                  static char map[] = "0123456789ABCDEF";
                  char ids[5];
                  unsigned char id = (unsigned char)c;
                  ids[0]='_';
                  ids[1]='x';
                  ids[2]=map[id>>4];
                  ids[3]=map[id&0xF];
                  ids[4]=0;
                  strBuf.addStr(ids);
                }
                else if (caseSenseNames || !isupper(c))
                {
                  strBuf.addChar(c);
                }
                else
                {
                  strBuf.addChar('_');
                  strBuf.addChar(tolower(c)); 
                }
                break;
    }
  }
  strBuf.addChar(0);
  return strBuf.get();
}

/*! This function determines the file name on disk of an item
 *  given its name, which could be a class name with template 
 *  arguments, so special characters need to be escaped.
 */
QCString convertNameToFile(const char *name,bool allowDots,bool allowUnderscore)
{
  static bool shortNames = Config_getBool("SHORT_NAMES");
  static bool createSubdirs = Config_getBool("CREATE_SUBDIRS");
  QCString result;
  if (shortNames) // use short names only
  {
    static QDict<int> usedNames(10007);
    usedNames.setAutoDelete(TRUE);
    static int count=1;

    int *value=usedNames.find(name);
    int num;
    if (value==0)
    {
      usedNames.insert(name,new int(count));
      num = count++;
    }
    else
    {
      num = *value;
    }
    result.sprintf("a%05d",num); 
  }
  else // long names
  {
    result=escapeCharsInString(name,allowDots,allowUnderscore);
    int resultLen = result.length();
    if (resultLen>=128) // prevent names that cannot be created!
    {
      // third algorithm based on MD5 hash
      uchar md5_sig[16];
      QCString sigStr(33);
      MD5Buffer((const unsigned char *)result.data(),resultLen,md5_sig);
      MD5SigToString(md5_sig,sigStr.data(),33);
      result=result.left(128-32)+sigStr; 
    }
  }
  if (createSubdirs)
  {
    int l1Dir=0,l2Dir=0;

#if MAP_ALGO==ALGO_COUNT 
    // old algorithm, has the problem that after regeneration the
    // output can be located in a different dir.
    if (Doxygen::htmlDirMap==0) 
    {
      Doxygen::htmlDirMap=new QDict<int>(100003);
      Doxygen::htmlDirMap->setAutoDelete(TRUE);
    }
    static int curDirNum=0;
    int *dirNum = Doxygen::htmlDirMap->find(result);
    if (dirNum==0) // new name
    {
      Doxygen::htmlDirMap->insert(result,new int(curDirNum)); 
      l1Dir = (curDirNum)&0xf;    // bits 0-3
      l2Dir = (curDirNum>>4)&0xff; // bits 4-11
      curDirNum++;
    }
    else // existing name
    {
      l1Dir = (*dirNum)&0xf;       // bits 0-3
      l2Dir = ((*dirNum)>>4)&0xff; // bits 4-11
    }
#elif MAP_ALGO==ALGO_CRC16
    // second algorithm based on CRC-16 checksum
    int dirNum = qChecksum(result,result.length());
    l1Dir = dirNum&0xf;
    l2Dir = (dirNum>>4)&0xff;
#elif MAP_ALGO==ALGO_MD5
    // third algorithm based on MD5 hash
    uchar md5_sig[16];
    MD5Buffer((const unsigned char *)result.data(),result.length(),md5_sig);
    l1Dir = md5_sig[14]&0xf;
    l2Dir = md5_sig[15];
#endif
    result.prepend(QCString().sprintf("d%x/d%02x/",l1Dir,l2Dir));
  }
  //printf("*** convertNameToFile(%s)->%s\n",name,result.data());
  return result;
}

QCString relativePathToRoot(const char *name)
{
  QCString result;
  if (Config_getBool("CREATE_SUBDIRS"))
  {
    if (name==0)
    {
      return REL_PATH_TO_ROOT;
    }
    else
    {
      QCString n = name;
      int i = n.findRev('/');
      if (i!=-1)
      {
        result=REL_PATH_TO_ROOT;
      }
    }
  }
  return result;
}

void createSubDirs(QDir &d)
{
  if (Config_getBool("CREATE_SUBDIRS"))
  {
    // create 4096 subdirectories
    int l1,l2;
    for (l1=0;l1<16;l1++)
    {
      d.mkdir(QString().sprintf("d%x",l1));
      for (l2=0;l2<256;l2++)
      {
        d.mkdir(QString().sprintf("d%x/d%02x",l1,l2));
      }
    }
  }
}

/*! Input is a scopeName, output is the scopename split into a
 *  namespace part (as large as possible) and a classname part.
 */
void extractNamespaceName(const QCString &scopeName,
    QCString &className,QCString &namespaceName,
    bool allowEmptyClass)
{
  int i,p;
  QCString clName=scopeName;
  NamespaceDef *nd = 0;
  if (!clName.isEmpty() && (nd=getResolvedNamespace(clName)) && getClass(clName)==0)
  { // the whole name is a namespace (and not a class)
    namespaceName=nd->name().copy();
    className.resize(0);
    goto done;
  }
  p=clName.length()-2;
  while (p>=0 && (i=clName.findRev("::",p))!=-1) 
    // see if the first part is a namespace (and not a class)
  {
    //printf("Trying %s\n",clName.left(i).data());
    if (i>0 && (nd=getResolvedNamespace(clName.left(i))) && getClass(clName.left(i))==0)
    {
      //printf("found!\n");
      namespaceName=nd->name().copy();
      className=clName.right(clName.length()-i-2);
      goto done;
    } 
    p=i-2; // try a smaller piece of the scope
  }
  //printf("not found!\n");

  // not found, so we just have to guess.
  className=scopeName.copy();
  namespaceName.resize(0);

done:
  if (className.isEmpty() && !namespaceName.isEmpty() && !allowEmptyClass)
  {
    // class and namespace with the same name, correct to return the class.
    className=namespaceName.copy();
    namespaceName.resize(0);
  }
  //printf("extractNamespace `%s' => `%s|%s'\n",scopeName.data(),
  //       className.data(),namespaceName.data());
  return;
}

QCString insertTemplateSpecifierInScope(const QCString &scope,const QCString &templ)
{
  QCString result=scope.copy();
  if (!templ.isEmpty() && scope.find('<')==-1)
  {
    int si,pi=0;
    ClassDef *cd=0;
    while (
        (si=scope.find("::",pi))!=-1 && !getClass(scope.left(si)+templ) && 
        ((cd=getClass(scope.left(si)))==0 || cd->templateArguments()==0) 
        ) 
    { 
      //printf("Tried `%s'\n",(scope.left(si)+templ).data()); 
      pi=si+2; 
    }
    if (si==-1) // not nested => append template specifier
    {
      result+=templ; 
    }
    else // nested => insert template specifier before after first class name
    {
      result=scope.left(si) + templ + scope.right(scope.length()-si);
    }
  }
  //printf("insertTemplateSpecifierInScope(`%s',`%s')=%s\n",
  //    scope.data(),templ.data(),result.data());
  return result;
}

#if 0 // original version
/*! Strips the scope from a name. Examples: A::B will return A
 *  and A<T>::B<N::C<D> > will return A<T>.
 */
QCString stripScope(const char *name)
{
  QCString result = name;
  int l=result.length();
  int p=l-1;
  bool done;
  int count;

  while (p>=0)
  {
    char c=result.at(p);
    switch (c)
    {
      case ':': 
        //printf("stripScope(%s)=%s\n",name,result.right(l-p-1).data());
        return result.right(l-p-1);
      case '>':
        count=1;
        done=FALSE;
        //printf("pos < = %d\n",p);
        p--;
        while (p>=0 && !done)
        {
          c=result.at(p--);
          switch (c)
          {
            case '>': count++; break;
            case '<': count--; if (count<=0) done=TRUE; break;
            default: 
                      //printf("c=%c count=%d\n",c,count);
                      break;
          }
        }
        //printf("pos > = %d\n",p+1);
        break;
      default:
        p--;
    }
  }
  //printf("stripScope(%s)=%s\n",name,name);
  return name;
}
#endif

// new version by Davide Cesari which also works for Fortran
QCString stripScope(const char *name)
{
  QCString result = name;
  int l=result.length();
  int p;
  bool done = FALSE;
  bool skipBracket=FALSE; // if brackets do not match properly, ignore them altogether
  int count=0;

  do
  {
    p=l-1; // start at the end of the string
    while (p>=0 && count>=0)
    {
      char c=result.at(p);
      switch (c)
      {
        case ':': 
          //printf("stripScope(%s)=%s\n",name,result.right(l-p-1).data());
          return result.right(l-p-1);
        case '>':
          if (skipBracket) // we don't care about brackets
          {
            p--;
          }
          else // count open/close brackets
          {
            if (p>0 && result.at(p-1)=='>') // skip >> operator
            {
              p-=2;
              break;
            }


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