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   *  This file is part of AndroidIDE.
   *
   *  AndroidIDE 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 3 of the License, or
   *  (at your option) any later version.
   *
   *  AndroidIDE 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 AndroidIDE.  If not, see <https://www.gnu.org/licenses/>.
   */
  
  /*
   * reserved comment block
   * DO NOT REMOVE OR ALTER!
   */
  /*
   * Copyright 2001-2004 The Apache Software Foundation.
   *
   * Licensed under the Apache License, Version 2.0 (the "License");
   * you may not use this file except in compliance with the License.
   * You may obtain a copy of the License at
   *
   *     http://www.apache.org/licenses/LICENSE-2.0
   *
   * Unless required by applicable law or agreed to in writing, software
   * distributed under the License is distributed on an "AS IS" BASIS,
   * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
   * See the License for the specific language governing permissions and
   * limitations under the License.
   */
  /*
   * $Id: DecimalFormatting.java,v 1.2.4.1 2005/09/12 10:14:32 pvedula Exp $
   */
  
  package jaxp.sun.org.apache.xalan.internal.xsltc.compiler;
  
  import jaxp.sun.org.apache.bcel.internal.generic.ConstantPoolGen;
  import jaxp.sun.org.apache.bcel.internal.generic.GETSTATIC;
  import jaxp.sun.org.apache.bcel.internal.generic.INVOKESPECIAL;
  import jaxp.sun.org.apache.bcel.internal.generic.INVOKEVIRTUAL;
  import jaxp.sun.org.apache.bcel.internal.generic.InstructionList;
  import jaxp.sun.org.apache.bcel.internal.generic.NEW;
  import jaxp.sun.org.apache.bcel.internal.generic.PUSH;
  import jaxp.sun.org.apache.xalan.internal.xsltc.compiler.util.ClassGenerator;
  import jaxp.sun.org.apache.xalan.internal.xsltc.compiler.util.ErrorMsg;
  import jaxp.sun.org.apache.xalan.internal.xsltc.compiler.util.MethodGenerator;
  import jaxp.sun.org.apache.xalan.internal.xsltc.compiler.util.Type;
  import jaxp.sun.org.apache.xalan.internal.xsltc.compiler.util.TypeCheckError;
  import jaxp.sun.org.apache.xml.internal.utils.XML11Char;
  
  /**
   * @author Jacek Ambroziak
   * @author Santiago Pericas-Geertsen
   * @author Morten Jorgensen
   */
  final class DecimalFormatting extends TopLevelElement {
  
      private static final String DFS_CLASS = "java.text.DecimalFormatSymbols";
      private static final String DFS_SIG   = "Ljava/text/DecimalFormatSymbols;";
  
      private QName _name = null;
  
      /**
       * No type check needed for the <xsl:decimal-formatting/> element
       */
      public Type typeCheck(SymbolTable stable) throws TypeCheckError {
          return Type.Void;
      }
  
      /**
       * Parse the name of the <xsl:decimal-formatting/> element
       */
      public void parseContents(Parser parser) {
          // Get the name of these decimal formatting symbols
          final String name = getAttribute("name");
          if (name.length() > 0) {
              if (!XML11Char.isXML11ValidQName(name)){
                  ErrorMsg err = new ErrorMsg(ErrorMsg.INVALID_QNAME_ERR, name, this);
                  parser.reportError(ERROR, err);
              }
          }
          _name = parser.getQNameIgnoreDefaultNs(name);
          if (_name == null) {
              _name = parser.getQNameIgnoreDefaultNs(EMPTYSTRING);
          }
  
          // Check if a set of symbols has already been registered under this name
          SymbolTable stable = parser.getSymbolTable();
          if (stable.getDecimalFormatting(_name) != null) {
              reportWarning(this, parser, ErrorMsg.SYMBOLS_REDEF_ERR,
                  _name.toString());
          }
          else {
              stable.addDecimalFormatting(_name, this);
          }
      }
  
      /**
       * This method is called when the constructor is compiled in
       * Stylesheet.compileConstructor() and not as the syntax tree is traversed.
       */
      public void translate(ClassGenerator classGen, MethodGenerator methodGen) {
  
          ConstantPoolGen cpg = classGen.getConstantPool();
          InstructionList il = methodGen.getInstructionList();
  
          // DecimalFormatSymbols.<init>(Locale);
          // xsl:decimal-format - except for the NaN and infinity attributes.
          final int init = cpg.addMethodref(DFS_CLASS, "<init>",
                                            "("+LOCALE_SIG+")V");
  
          // Push the format name on the stack for call to addDecimalFormat()
          il.append(classGen.loadTranslet());
          il.append(new PUSH(cpg, _name.toString()));
  
          // Manufacture a DecimalFormatSymbols on the stack
          // for call to addDecimalFormat()
          // Use the US Locale as the default, as most of its settings
          // are equivalent to the default settings required of
          il.append(new NEW(cpg.addClass(DFS_CLASS)));
          il.append(DUP);
          il.append(new GETSTATIC(cpg.addFieldref(LOCALE_CLASS, "US",
                                                  LOCALE_SIG)));
          il.append(new INVOKESPECIAL(init));
  
          String tmp = getAttribute("NaN");
          if ((tmp == null) || (tmp.equals(EMPTYSTRING))) {
              int nan = cpg.addMethodref(DFS_CLASS,
                                         "setNaN", "(Ljava/lang/String;)V");
              il.append(DUP);
              il.append(new PUSH(cpg, "NaN"));
              il.append(new INVOKEVIRTUAL(nan));
          }
  
          tmp = getAttribute("infinity");
          if ((tmp == null) || (tmp.equals(EMPTYSTRING))) {
              int inf = cpg.addMethodref(DFS_CLASS,
                                         "setInfinity",
                                         "(Ljava/lang/String;)V");
              il.append(DUP);
              il.append(new PUSH(cpg, "Infinity"));
              il.append(new INVOKEVIRTUAL(inf));
          }
  
          final int nAttributes = _attributes.getLength();
          for (int i = 0; i < nAttributes; i++) {
              final String name = _attributes.getQName(i);
              final String value = _attributes.getValue(i);
  
              boolean valid = true;
              int method = 0;
  
              if (name.equals("decimal-separator")) {
                  // DecimalFormatSymbols.setDecimalSeparator();
                  method = cpg.addMethodref(DFS_CLASS,
                                            "setDecimalSeparator", "(C)V");
              }
              else if (name.equals("grouping-separator")) {
                  method =  cpg.addMethodref(DFS_CLASS,
                                             "setGroupingSeparator", "(C)V");
              }
              else if (name.equals("minus-sign")) {
                  method = cpg.addMethodref(DFS_CLASS,
                                            "setMinusSign", "(C)V");
              }
              else if (name.equals("percent")) {
                  method = cpg.addMethodref(DFS_CLASS,
                                            "setPercent", "(C)V");
              }
              else if (name.equals("per-mille")) {
                  method = cpg.addMethodref(DFS_CLASS,
                                            "setPerMill", "(C)V");
              }
              else if (name.equals("zero-digit")) {
                  method = cpg.addMethodref(DFS_CLASS,
                                            "setZeroDigit", "(C)V");
              }
              else if (name.equals("digit")) {
                  method = cpg.addMethodref(DFS_CLASS,
                                            "setDigit", "(C)V");
              }
              else if (name.equals("pattern-separator")) {
                  method = cpg.addMethodref(DFS_CLASS,
                                            "setPatternSeparator", "(C)V");
              }
              else if (name.equals("NaN")) {
                  method = cpg.addMethodref(DFS_CLASS,
                                            "setNaN", "(Ljava/lang/String;)V");
                  il.append(DUP);
                  il.append(new PUSH(cpg, value));
                  il.append(new INVOKEVIRTUAL(method));
                  valid = false;
              }
              else if (name.equals("infinity")) {
                  method = cpg.addMethodref(DFS_CLASS,
                                            "setInfinity",
                                            "(Ljava/lang/String;)V");
                  il.append(DUP);
                  il.append(new PUSH(cpg, value));
                  il.append(new INVOKEVIRTUAL(method));
                  valid = false;
              }
              else {
                  valid = false;
              }
  
              if (valid) {
                  il.append(DUP);
                  il.append(new PUSH(cpg, value.charAt(0)));
                  il.append(new INVOKEVIRTUAL(method));
              }
  
          }
  
          final int put = cpg.addMethodref(TRANSLET_CLASS,
                                           "addDecimalFormat",
                                           "("+STRING_SIG+DFS_SIG+")V");
          il.append(new INVOKEVIRTUAL(put));
      }
  
      /**
       * Creates the default, nameless, DecimalFormat object in
       * AbstractTranslet's format_symbols hashtable.
       * This should be called for every stylesheet, and the entry
       * may be overridden by later nameless xsl:decimal-format instructions.
       */
      public static void translateDefaultDFS(ClassGenerator classGen,
                                             MethodGenerator methodGen) {
  
          ConstantPoolGen cpg = classGen.getConstantPool();
          InstructionList il = methodGen.getInstructionList();
          final int init = cpg.addMethodref(DFS_CLASS, "<init>",
                                            "("+LOCALE_SIG+")V");
  
          // Push the format name, which is empty, on the stack
          // for call to addDecimalFormat()
          il.append(classGen.loadTranslet());
          il.append(new PUSH(cpg, EMPTYSTRING));
  
          // Manufacture a DecimalFormatSymbols on the stack for
          // call to addDecimalFormat().  Use the US Locale as the
          // default, as most of its settings are equivalent to
          // the default settings required of xsl:decimal-format -
          // except for the NaN and infinity attributes.
          il.append(new NEW(cpg.addClass(DFS_CLASS)));
          il.append(DUP);
          il.append(new GETSTATIC(cpg.addFieldref(LOCALE_CLASS, "US",
                                                  LOCALE_SIG)));
          il.append(new INVOKESPECIAL(init));
  
          int nan = cpg.addMethodref(DFS_CLASS,
                                     "setNaN", "(Ljava/lang/String;)V");
          il.append(DUP);
          il.append(new PUSH(cpg, "NaN"));
          il.append(new INVOKEVIRTUAL(nan));
  
          int inf = cpg.addMethodref(DFS_CLASS,
                                     "setInfinity",
                                     "(Ljava/lang/String;)V");
          il.append(DUP);
          il.append(new PUSH(cpg, "Infinity"));
          il.append(new INVOKEVIRTUAL(inf));
  
          final int put = cpg.addMethodref(TRANSLET_CLASS,
                                           "addDecimalFormat",
                                           "("+STRING_SIG+DFS_SIG+")V");
          il.append(new INVOKEVIRTUAL(put));
      }
  }
  