content: /*
   * HyphenBuilder.java July 2008
   *
   * Copyright (C) 2008, Niall Gallagher <niallg@users.sf.net>
   *
   * 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.
   */
  
  package com.aliyun.odps.simpleframework.xml.stream;
  
  /**
   * The <code>HyphenBuilder</code> is used to represent an XML style
   * that can be applied to a serialized object. A style can be used to
   * modify the element and attribute names for the generated document.
   * This styles can be used to generate hyphenated XML.
   * <pre>
   * 
   *    &lt;example-element&gt;
   *        &lt;child-element example-attribute='example'&gt;
   *           &lt;inner-element&gt;example&lt;/inner-element&gt;
   *        &lt;/child-element&gt;
   *     &lt;/example-element&gt;
   *     
   * </pre>
   * Above the hyphenated XML elements and attributes can be generated
   * from a style implementation. Styles enable the same objects to be
   * serialized in different ways, generating different styles of XML
   * without having to modify the class schema for that object.    
   * 
   * @author Niall Gallagher
   */
  class HyphenBuilder implements Style {
  
     /**
      * This is used to generate the XML attribute representation of 
      * the specified name. Attribute names should ensure to keep the
      * uniqueness of the name such that two different names will
      * be styled in to two different strings.
      * 
      * @param name this is the attribute name that is to be styled
      * 
      * @return this returns the styled name of the XML attribute
      */
     public String getAttribute(String name) {
        if(name != null) {
           return new Parser(name).process();
        }
        return null;
     }
  
     /**
      * This is used to generate the XML element representation of 
      * the specified name. Element names should ensure to keep the
      * uniqueness of the name such that two different names will
      * be styled in to two different strings.
      * 
      * @param name this is the element name that is to be styled
      * 
      * @return this returns the styled name of the XML element
      */
     public String getElement(String name) {
        if(name != null) {
           return new Parser(name).process();
        }
        return null;
     }
     
     /**
      * This is used to parse the style for this builder. This takes 
      * all of the words split from the original string and builds all
      * of the processed tokens for the styles elements and attributes.
      * 
      * @author Niall Gallagher
      */
     private class Parser extends Splitter {
        
        /**
         * Constructor for the <code>Parser</code> object. This will
         * take the original string and parse it such that all of the
         * words are emitted and used to build the styled token.
         * 
         * @param source this is the original string to be parsed
         */
        private Parser(String source) {
           super(source);
        }
        
        /**
         * This is used to parse the provided text in to the style that
         * is required. Manipulation of the text before committing it
         * ensures that the text adheres to the required style.
         * 
         * @param text this is the text buffer to acquire the token from
         * @param off this is the offset in the buffer token starts at
         * @param len this is the length of the token to be parsed
         */
        @Override
        protected void parse(char[] text, int off, int len) {
           text[off] = toLower(text[off]);
        }
        
        /**
         * This is used to commit the provided text in to the style that
         * is required. Committing the text to the buffer assembles the
         * tokens resulting in a complete token.
         * 
         * @param text this is the text buffer to acquire the token from
         * @param off this is the offset in the buffer token starts at
         * @param len this is the length of the token to be committed
         */
        @Override
        protected void commit(char[] text, int off, int len) {
           builder.append(text, off, len);
           
           if(off + len < count) {
              builder.append('-');
           }
        }
     }
  
  }
  