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/* gnu.classpath.tools.gjdoc.SeeTagImpl

   Copyright (C) 2001 Free Software Foundation, Inc.

This file is part of GNU Classpath.

GNU Classpath is free software; you can redistribute it and/or modify

it under the terms of the GNU General Public License as published by

the Free Software Foundation; either version 2, or (at your option)

any later version.

GNU Classpath is distributed in the hope that it will be useful, but

WITHOUT ANY WARRANTY; without even the implied warranty of

MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU

General Public License for more details.

You should have received a copy of the GNU General Public License

along with GNU Classpath; see the file COPYING.  If not, write to the

Free Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA

02111-1307 USA.

Linking this library statically or dynamically with other modules is

making a combined work based on this library.  Thus, the terms and

conditions of the GNU General Public License cover the whole

combination.

As a special exception, the copyright holders of this library give you

permission to link this library with independent modules to produce an

executable, regardless of the license terms of these independent

modules, and to copy and distribute the resulting executable under

terms of your choice, provided that you also meet, for each linked

independent module, the terms and conditions of the license of that

module.  An independent module is a module which is not derived from

or based on this library.  If you modify this library, you may extend

this exception to your version of the library, but you are not

obligated to do so.  If you do not wish to do so, delete this

exception statement from your version. */

package gnu.classpath.tools.gjdoc;

import com.sun.javadoc.*;

import java.util.*;

import java.text.*;

public class SeeTagImpl extends AbstractTagImpl implements SeeTag {

   protected String     reference;

   private String       referencedClassName;

   private String       referencedMemberName;

   private ClassDoc     referencedClass;

   private MemberDoc    referencedMember;

   private PackageDoc   referencedPackage;

   private String       label;

   private ClassDocImpl contextClass;

   public SeeTagImpl(String text, ClassDocImpl contextClass) {

      super(text);

      this.contextClass=contextClass;

   }

   public void resolve() {

      super.resolve();

      text = text.trim();

      if (text.startsWith("<") || text.startsWith("\"")) {

         label = text;

         return;

      }

      int labelNdx=text.indexOf(';');

      if (labelNdx>=0) {

         label="";

         return;

      }

      for (int i=0; i<text.length(); ++i) {

         if (" \t\r\n".indexOf(text.charAt(i)) >= 0) {

            labelNdx = i;

            break;

         }

      }

      int openParenNdx = text.indexOf('(');

      if (openParenNdx >= 0 && openParenNdx < labelNdx) {

         labelNdx=text.indexOf(')', openParenNdx);

         if (labelNdx >= 0) {

            ++ labelNdx;

         }

      }

      if (labelNdx<0 || labelNdx>=text.length()) {

         reference=text.trim();

         label="";

      }

      else {

         reference=text.substring(0,labelNdx).trim();

         label=text.substring(labelNdx).trim();

      }

      int mspecNdx=reference.indexOf('#');

      String referencedFqName;

      if (mspecNdx<0) {

         referencedFqName=reference;

      }

      else {

         referencedFqName=reference.substring(0,mspecNdx);

         referencedMemberName=reference.substring(mspecNdx+1);

     }

      // the following is in contradiction to the api docs, but

      // conform to sun javadoc: return fully qualified classname

      // with referencedClassName().

      if (referencedFqName.trim().length()>0) {

         referencedClassName=referencedFqName;

         if (contextClass==null)

            referencedClass=Main.getRootDoc().classNamed(referencedFqName);

         else

            referencedClass=contextClass.findClass(referencedFqName);

      }

      else {

         referencedClassName="";

         referencedClass=contextClass;

      }

      if (referencedClass==null) {

         referencedClass = Main.getRootDoc().classNamed("java.lang." + referencedFqName);

      }

      if (referencedClass!=null && !referencedClass.isIncluded()) referencedClass=null;

      if (referencedClass!=null) {

         referencedPackage=referencedClass.containingPackage();

         referencedClassName=referencedClass.qualifiedName();

         if (referencedMemberName!=null) {

            if (referencedMemberName.indexOf('(')<0) {

               referencedMember=((ClassDocImpl)referencedClass).findFieldRec(referencedMemberName);

               if (null == referencedMember) {

                  MethodDoc[] methods = ((ClassDocImpl)referencedClass).methods();

                  for (int i=0; i<methods.length; ++i) {

                     if (methods[i].name().equals(referencedMemberName)) {

                        if (null == referencedMember) {

                           referencedMember = methods[i];

                        }

                        else {

                           referencedClass = null;

                           referencedMember = null;

                           //print warning here

                           break;

                        }

                     }

                  }

               }

               else {

                  referencedClass = referencedMember.containingClass();

               }

            }

            else {

               referencedMember=((ClassDocImpl)referencedClass).findExecutableRec(referencedMemberName);

               if (referencedMember==null) {

                  //System.err.println("cannot find member for '"+referencedMemberName+"'");

                  referencedClass = null;

               }

            }

         }

      }

      /*

      else {

         System.err.println("class not found: '"+referencedFqName + "' in context class " + contextClass + " in " + this);

      }

      */

   }

   public ClassDoc referencedClass() {

      return referencedClass;

   }

   public String referencedClassName() {

      return referencedClassName;

   }

   public MemberDoc referencedMember() {

      return referencedMember;

   }

   public String referencedMemberName() {

      return referencedMemberName;

   }

   public PackageDoc referencedPackage() {

      return referencedPackage;

   }

   public String label() {

      return label;

   }

   public String kind() {

      return "@see";

   }

   public String name() {

      return "@see";

   }

   public Tag[] firstSentenceTags() {

      return inlineTags();

   }

   public Tag[] inlineTags() {

      return new Tag[]{new TextTagImpl(referencedClassName)};

   }

}