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/* Copyright (c) 2006, Sun Microsystems, Inc.
 * All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions are met:
 *
 *     * Redistributions of source code must retain the above copyright notice,
 *       this list of conditions and the following disclaimer.
 *     * Redistributions in binary form must reproduce the above copyright
 *       notice, this list of conditions and the following disclaimer in the
 *       documentation and/or other materials provided with the distribution.
 *     * Neither the name of the Sun Microsystems, Inc. nor the names of its
 *       contributors may be used to endorse or promote products derived from
 *       this software without specific prior written permission.
 *
 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
 * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
 * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF
 * THE POSSIBILITY OF SUCH DAMAGE.
 */

package org.javacc.jjdoc;

import java.util.Hashtable;

import org.javacc.parser.CppCodeProduction;
import org.javacc.parser.Expansion;
import org.javacc.parser.JavaCodeProduction;
import org.javacc.parser.NonTerminal;
import org.javacc.parser.NormalProduction;
import org.javacc.parser.RegularExpression;
import org.javacc.parser.TokenProduction;

/**
 * Output BNF in HTML 3.2 format.
 */
public class HTMLGenerator extends TextGenerator {
  private Hashtable id_map = new Hashtable();
  private int id = 1;

  public HTMLGenerator() {
    super();
  }

  protected String get_id(String nt) {
    String i = (String)id_map.get(nt);
    if (i == null) {
      i = "prod" + id++;
      id_map.put(nt, i);
    }
    return i;
  }

  private void println(String s) {
    print(s + "\n");
  }

  public void text(String s) {
    String ss = "";
    for (int i = 0; i < s.length(); ++i) {
      if (s.charAt(i) == '<') {
  ss += "<";
      } else if (s.charAt(i) == '>') {
  ss += ">";
      } else if (s.charAt(i) == '&') {
  ss += "&";
      } else {
  ss += s.charAt(i);
      }
    }
    print(ss);
  }

  public void print(String s) {
    ostr.print(s);
  }

  public void documentStart() {
    ostr = create_output_stream();
    println("");
    println("");
    println("");
    if (!"".equals(JJDocOptions.getCSS())) {
      println("");
    }
    if (JJDocGlobals.input_file != null) {
      println("BNF for " + JJDocGlobals.input_file + "");
    } else {
      println("A BNF grammar by JJDoc");
    }
    println("");
    println("");
    println("BNF for " + JJDocGlobals.input_file + "");
  }

  public void documentEnd() {
    println("");
    println("");
    ostr.close();
  }

  /**
   * Prints out comments, used for tokens and non-terminals.
   * {@inheritDoc}
   * @see org.javacc.jjdoc.TextGenerator#specialTokens(java.lang.String)
   */
  public void specialTokens(String s) {
    println(" ");
    println(" ");
    println("  ");
    println("");
    print(s);
    println("");
    println("  ");
    println(" ");
  }


  @Override
  public void handleTokenProduction(TokenProduction tp) {
      println(" ");
      println(" ");
      println("  ");
      println("   ");
      String text = JJDoc.getStandardTokenProductionText(tp);
      text(text);
      println("   ");
      println("  ");
      println(" ");
  }


  public void nonterminalsStart() {
    println("NON-TERMINALS");
    if (JJDocOptions.getOneTable()) {
      println("");
    }
  }
  public void nonterminalsEnd() {
    if (JJDocOptions.getOneTable()) {
      println("");
    }
  }

  public void tokensStart() {
    println("TOKENS");
    println("");
  }
  public void tokensEnd() {
    println("");
  }

  public void javacode(JavaCodeProduction jp) {
	    productionStart(jp);
	    println("java code");
	    productionEnd(jp);
	  }

  public void cppcode(CppCodeProduction cp) {
	    productionStart(cp);
	    println("cpp code");
	    productionEnd(cp);
	  }

  public void productionStart(NormalProduction np) {
    if (!JJDocOptions.getOneTable()) {
      println("");
      println("");
      println("");
    }
    println("");
    println("");
    println("");
    print("" + np.getLhs() + "" + np.getLhs() + " ::= ");
  }
  public void productionEnd(NormalProduction np) {
    if (!JJDocOptions.getOneTable()) {
      println("");
      println("");
    }
  }

  public void expansionStart(Expansion e, boolean first) {
    if (!first) {
      println("");
      println("");
      println("|");
      print("");
    }
  }
  public void expansionEnd(Expansion e, boolean first) {
    println("");
    println("");
  }

  public void nonTerminalStart(NonTerminal nt) {
    print("");
  }
  public void nonTerminalEnd(NonTerminal nt) {
    print("");
  }

  public void reStart(RegularExpression r) {
  }
  public void reEnd(RegularExpression r) {
  }
}