Remove adodb from DataAccess directory.

1 files changed, 0 insertions, 2221 deletions

diff --git a/framework/DataAccess/adodb/adodb-xmlschema.inc.php b/framework/DataAccess/adodb/adodb-xmlschema.inc.php
deleted file mode 100644
index 388e3d8a..00000000
--- a/framework/DataAccess/adodb/adodb-xmlschema.inc.php
+++ /dev/null
@@ -1,2221 +0,0 @@
-<?php
-// Copyright (c) 2004 ars Cognita Inc., all rights reserved
-/* ******************************************************************************
-    Released under both BSD license and Lesser GPL library license. 
- 	Whenever there is any discrepancy between the two licenses, 
- 	the BSD license will take precedence. 
-*******************************************************************************/
-/**
- * xmlschema is a class that allows the user to quickly and easily
- * build a database on any ADOdb-supported platform using a simple
- * XML schema.
- *
- * Last Editor: $Author: jlim $
- * @author Richard Tango-Lowy & Dan Cech
- * @version $Revision: 1.12 $
- *
- * @package axmls
- * @tutorial getting_started.pkg
- */
- 
-function _file_get_contents($file) 
-{
- 	if (function_exists('file_get_contents')) return file_get_contents($file);
-	
-	$f = fopen($file,'r');
-	if (!$f) return '';
-	$t = '';
-	
-	while ($s = fread($f,100000)) $t .= $s;
-	fclose($f);
-	return $t;
-}
-
-
-/**
-* Debug on or off
-*/
-if( !defined( 'XMLS_DEBUG' ) ) {
-	define( 'XMLS_DEBUG', FALSE );
-}
-
-/**
-* Default prefix key
-*/
-if( !defined( 'XMLS_PREFIX' ) ) {
-	define( 'XMLS_PREFIX', '%%P' );
-}
-
-/**
-* Maximum length allowed for object prefix
-*/
-if( !defined( 'XMLS_PREFIX_MAXLEN' ) ) {
-	define( 'XMLS_PREFIX_MAXLEN', 10 );
-}
-
-/**
-* Execute SQL inline as it is generated
-*/
-if( !defined( 'XMLS_EXECUTE_INLINE' ) ) {
-	define( 'XMLS_EXECUTE_INLINE', FALSE );
-}
-
-/**
-* Continue SQL Execution if an error occurs?
-*/
-if( !defined( 'XMLS_CONTINUE_ON_ERROR' ) ) {
-	define( 'XMLS_CONTINUE_ON_ERROR', FALSE );
-}
-
-/**
-* Current Schema Version
-*/
-if( !defined( 'XMLS_SCHEMA_VERSION' ) ) {
-	define( 'XMLS_SCHEMA_VERSION', '0.2' );
-}
-
-/**
-* Default Schema Version.  Used for Schemas without an explicit version set.
-*/
-if( !defined( 'XMLS_DEFAULT_SCHEMA_VERSION' ) ) {
-	define( 'XMLS_DEFAULT_SCHEMA_VERSION', '0.1' );
-}
-
-/**
-* Default Schema Version.  Used for Schemas without an explicit version set.
-*/
-if( !defined( 'XMLS_DEFAULT_UPGRADE_METHOD' ) ) {
-	define( 'XMLS_DEFAULT_UPGRADE_METHOD', 'ALTER' );
-}
-
-/**
-* Include the main ADODB library
-*/
-if( !defined( '_ADODB_LAYER' ) ) {
-	require( 'adodb.inc.php' );
-	require( 'adodb-datadict.inc.php' );
-}
-
-/**
-* Abstract DB Object. This class provides basic methods for database objects, such
-* as tables and indexes.
-*
-* @package axmls
-* @access private
-*/
-class dbObject {
-	
-	/**
-	* var object Parent
-	*/
-	var $parent;
-	
-	/**
-	* var string current element
-	*/
-	var $currentElement;
-	
-	/**
-	* NOP
-	*/
-	function dbObject( &$parent, $attributes = NULL ) {
-		$this->parent =& $parent;
-	}
-	
-	/**
-	* XML Callback to process start elements
-	*
-	* @access private
-	*/
-	function _tag_open( &$parser, $tag, $attributes ) {
-		
-	}
-	
-	/**
-	* XML Callback to process CDATA elements
-	*
-	* @access private
-	*/
-	function _tag_cdata( &$parser, $cdata ) {
-		
-	}
-	
-	/**
-	* XML Callback to process end elements
-	*
-	* @access private
-	*/
-	function _tag_close( &$parser, $tag ) {
-		
-	}
-	
-	function create() {
-		return array();
-	}
-	
-	/**
-	* Destroys the object
-	*/
-	function destroy() {
-		unset( $this );
-	}
-	
-	/**
-	* Checks whether the specified RDBMS is supported by the current
-	* database object or its ranking ancestor.
-	*
-	* @param string $platform RDBMS platform name (from ADODB platform list).
-	* @return boolean TRUE if RDBMS is supported; otherwise returns FALSE.
-	*/
-	function supportedPlatform( $platform = NULL ) {
-		return is_object( $this->parent ) ? $this->parent->supportedPlatform( $platform ) : TRUE;
-	}
-	
-	/**
-	* Returns the prefix set by the ranking ancestor of the database object.
-	*
-	* @param string $name Prefix string.
-	* @return string Prefix.
-	*/
-	function prefix( $name = '' ) {
-		return is_object( $this->parent ) ? $this->parent->prefix( $name ) : $name;
-	}
-	
-	/**
-	* Extracts a field ID from the specified field.
-	*
-	* @param string $field Field.
-	* @return string Field ID.
-	*/
-	function FieldID( $field ) {
-		return strtoupper( preg_replace( '/^`(.+)`$/', '$1', $field ) );
-	}
-}
-
-/**
-* Creates a table object in ADOdb's datadict format
-*
-* This class stores information about a database table. As charactaristics
-* of the table are loaded from the external source, methods and properties
-* of this class are used to build up the table description in ADOdb's
-* datadict format.
-*
-* @package axmls
-* @access private
-*/
-class dbTable extends dbObject {
-	
-	/**
-	* @var string Table name
-	*/
-	var $name;
-	
-	/**
-	* @var array Field specifier: Meta-information about each field
-	*/
-	var $fields = array();
-	
-	/**
-	* @var array List of table indexes.
-	*/
-	var $indexes = array();
-	
-	/**
-	* @var array Table options: Table-level options
-	*/
-	var $opts = array();
-	
-	/**
-	* @var string Field index: Keeps track of which field is currently being processed
-	*/
-	var $current_field;
-	
-	/**
-	* @var boolean Mark table for destruction
-	* @access private
-	*/
-	var $drop_table;
-	
-	/**
-	* @var boolean Mark field for destruction (not yet implemented)
-	* @access private
-	*/
-	var $drop_field = array();
-	
-	/**
-	* Iniitializes a new table object.
-	*
-	* @param string $prefix DB Object prefix
-	* @param array $attributes Array of table attributes.
-	*/
-	function dbTable( &$parent, $attributes = NULL ) {
-		$this->parent =& $parent;
-		$this->name = $this->prefix($attributes['NAME']);
-	}
-	
-	/**
-	* XML Callback to process start elements. Elements currently 
-	* processed are: INDEX, DROP, FIELD, KEY, NOTNULL, AUTOINCREMENT & DEFAULT. 
-	*
-	* @access private
-	*/
-	function _tag_open( &$parser, $tag, $attributes ) {
-		$this->currentElement = strtoupper( $tag );
-		
-		switch( $this->currentElement ) {
-			case 'INDEX':
-				if( !isset( $attributes['PLATFORM'] ) OR $this->supportedPlatform( $attributes['PLATFORM'] ) ) {
-					xml_set_object( $parser, $this->addIndex( $attributes ) );
-				}
-				break;
-			case 'DATA':
-				if( !isset( $attributes['PLATFORM'] ) OR $this->supportedPlatform( $attributes['PLATFORM'] ) ) {
-					xml_set_object( $parser, $this->addData( $attributes ) );
-				}
-				break;
-			case 'DROP':
-				$this->drop();
-				break;
-			case 'FIELD':
-				// Add a field
-				$fieldName = $attributes['NAME'];
-				$fieldType = $attributes['TYPE'];
-				$fieldSize = isset( $attributes['SIZE'] ) ? $attributes['SIZE'] : NULL;
-				$fieldOpts = isset( $attributes['OPTS'] ) ? $attributes['OPTS'] : NULL;
-				
-				$this->addField( $fieldName, $fieldType, $fieldSize, $fieldOpts );
-				break;
-			case 'KEY':
-			case 'NOTNULL':
-			case 'AUTOINCREMENT':
-				// Add a field option
-				$this->addFieldOpt( $this->current_field, $this->currentElement );
-				break;
-			case 'DEFAULT':
-				// Add a field option to the table object
-				
-				// Work around ADOdb datadict issue that misinterprets empty strings.
-				if( $attributes['VALUE'] == '' ) {
-					$attributes['VALUE'] = " '' ";
-				}
-				
-				$this->addFieldOpt( $this->current_field, $this->currentElement, $attributes['VALUE'] );
-				break;
-			case 'DEFDATE':
-			case 'DEFTIMESTAMP':
-				// Add a field option to the table object
-				$this->addFieldOpt( $this->current_field, $this->currentElement );
-				break;
-			default:
-				// print_r( array( $tag, $attributes ) );
-		}
-	}
-	
-	/**
-	* XML Callback to process CDATA elements
-	*
-	* @access private
-	*/
-	function _tag_cdata( &$parser, $cdata ) {
-		switch( $this->currentElement ) {
-			// Table constraint
-			case 'CONSTRAINT':
-				if( isset( $this->current_field ) ) {
-					$this->addFieldOpt( $this->current_field, $this->currentElement, $cdata );
-				} else {
-					$this->addTableOpt( $cdata );
-				}
-				break;
-			// Table option
-			case 'OPT':
-				$this->addTableOpt( $cdata );
-				break;
-			default:
-				
-		}
-	}
-	
-	/**
-	* XML Callback to process end elements
-	*
-	* @access private
-	*/
-	function _tag_close( &$parser, $tag ) {
-		$this->currentElement = '';
-		
-		switch( strtoupper( $tag ) ) {
-			case 'TABLE':
-				$this->parent->addSQL( $this->create( $this->parent ) );
-				xml_set_object( $parser, $this->parent );
-				$this->destroy();
-				break;
-			case 'FIELD':
-				unset($this->current_field);
-				break;
-
-		}
-	}
-	
-	/**
-	* Adds an index to a table object
-	*
-	* @param array $attributes Index attributes
-	* @return object dbIndex object
-	*/
-	function &addIndex( $attributes ) {
-		$name = strtoupper( $attributes['NAME'] );
-		$this->indexes[$name] =& new dbIndex( $this, $attributes );
-		return $this->indexes[$name];
-	}
-	
-	/**
-	* Adds data to a table object
-	*
-	* @param array $attributes Data attributes
-	* @return object dbData object
-	*/
-	function &addData( $attributes ) {
-		if( !isset( $this->data ) ) {
-			$this->data =& new dbData( $this, $attributes );
-		}
-		return $this->data;
-	}
-	
-	/**
-	* Adds a field to a table object
-	*
-	* $name is the name of the table to which the field should be added. 
-	* $type is an ADODB datadict field type. The following field types
-	* are supported as of ADODB 3.40:
-	* 	- C:  varchar
-	*	- X:  CLOB (character large object) or largest varchar size
-	*	   if CLOB is not supported
-	*	- C2: Multibyte varchar
-	*	- X2: Multibyte CLOB
-	*	- B:  BLOB (binary large object)
-	*	- D:  Date (some databases do not support this, and we return a datetime type)
-	*	- T:  Datetime or Timestamp
-	*	- L:  Integer field suitable for storing booleans (0 or 1)
-	*	- I:  Integer (mapped to I4)
-	*	- I1: 1-byte integer
-	*	- I2: 2-byte integer
-	*	- I4: 4-byte integer
-	*	- I8: 8-byte integer
-	*	- F:  Floating point number
-	*	- N:  Numeric or decimal number
-	*
-	* @param string $name Name of the table to which the field will be added.
-	* @param string $type	ADODB datadict field type.
-	* @param string $size	Field size
-	* @param array $opts	Field options array
-	* @return array Field specifier array
-	*/
-	function addField( $name, $type, $size = NULL, $opts = NULL ) {
-		$field_id = $this->FieldID( $name );
-		
-		// Set the field index so we know where we are
-		$this->current_field = $field_id;
-		
-		// Set the field name (required)
-		$this->fields[$field_id]['NAME'] = $name;
-		
-		// Set the field type (required)
-		$this->fields[$field_id]['TYPE'] = $type;
-		
-		// Set the field size (optional)
-		if( isset( $size ) ) {
-			$this->fields[$field_id]['SIZE'] = $size;
-		}
-		
-		// Set the field options
-		if( isset( $opts ) ) {
-			$this->fields[$field_id]['OPTS'][] = $opts;
-		}
-	}
-	
-	/**
-	* Adds a field option to the current field specifier
-	*
-	* This method adds a field option allowed by the ADOdb datadict 
-	* and appends it to the given field.
-	*
-	* @param string $field	Field name
-	* @param string $opt ADOdb field option
-	* @param mixed $value Field option value
-	* @return array Field specifier array
-	*/
-	function addFieldOpt( $field, $opt, $value = NULL ) {
-		if( !isset( $value ) ) {
-			$this->fields[$this->FieldID( $field )]['OPTS'][] = $opt;
-		// Add the option and value
-		} else {
-			$this->fields[$this->FieldID( $field )]['OPTS'][] = array( $opt => $value );
-		}
-	}
-	
-	/**
-	* Adds an option to the table
-	*
-	* This method takes a comma-separated list of table-level options
-	* and appends them to the table object.
-	*
-	* @param string $opt Table option
-	* @return array Options
-	*/
-	function addTableOpt( $opt ) {
-		$this->opts[] = $opt;
-		
-		return $this->opts;
-	}
-	
-	/**
-	* Generates the SQL that will create the table in the database
-	*
-	* @param object $xmls adoSchema object
-	* @return array Array containing table creation SQL
-	*/
-	function create( &$xmls ) {
-		$sql = array();
-		
-		// drop any existing indexes
-		if( is_array( $legacy_indexes = $xmls->dict->MetaIndexes( $this->name ) ) ) {
-			foreach( $legacy_indexes as $index => $index_details ) {
-				$sql[] = $xmls->dict->DropIndexSQL( $index, $this->name );
-			}
-		}
-		
-		// remove fields to be dropped from table object
-		foreach( $this->drop_field as $field ) {
-			unset( $this->fields[$field] );
-		}
-		
-		// if table exists
-		if( is_array( $legacy_fields = $xmls->dict->MetaColumns( $this->name ) ) ) {
-			// drop table
-			if( $this->drop_table ) {
-				$sql[] = $xmls->dict->DropTableSQL( $this->name );
-				
-				return $sql;
-			}
-			
-			// drop any existing fields not in schema
-			foreach( $legacy_fields as $field_id => $field ) {
-				if( !isset( $this->fields[$field_id] ) ) {
-					$sql[] = $xmls->dict->DropColumnSQL( $this->name, '`'.$field->name.'`' );
-				}
-			}
-		// if table doesn't exist
-		} else {
-			if( $this->drop_table ) {
-				return $sql;
-			}
-			
-			$legacy_fields = array();
-		}
-		
-		// Loop through the field specifier array, building the associative array for the field options
-		$fldarray = array();
-		
-		foreach( $this->fields as $field_id => $finfo ) {
-			// Set an empty size if it isn't supplied
-			if( !isset( $finfo['SIZE'] ) ) {
-				$finfo['SIZE'] = '';
-			}
-			
-			// Initialize the field array with the type and size
-			$fldarray[$field_id] = array(
-				'NAME' => $finfo['NAME'],
-				'TYPE' => $finfo['TYPE'],
-				'SIZE' => $finfo['SIZE']
-			);
-			
-			// Loop through the options array and add the field options. 
-			if( isset( $finfo['OPTS'] ) ) {
-				foreach( $finfo['OPTS'] as $opt ) {
-					// Option has an argument.
-					if( is_array( $opt ) ) {
-						$key = key( $opt );
-						$value = $opt[key( $opt )];
-						@$fldarray[$field_id][$key] .= $value;
-					// Option doesn't have arguments
-					} else {
-						$fldarray[$field_id][$opt] = $opt;
-					}
-				}
-			}
-		}
-		
-		if( empty( $legacy_fields ) ) {
-			// Create the new table
-			$sql[] = $xmls->dict->CreateTableSQL( $this->name, $fldarray, $this->opts );
-			logMsg( end( $sql ), 'Generated CreateTableSQL' );
-		} else {
-			// Upgrade an existing table
-			logMsg( "Upgrading {$this->name} using '{$xmls->upgrade}'" );
-			switch( $xmls->upgrade ) {
-				// Use ChangeTableSQL
-				case 'ALTER':
-					logMsg( 'Generated ChangeTableSQL (ALTERing table)' );
-					$sql[] = $xmls->dict->ChangeTableSQL( $this->name, $fldarray, $this->opts );
-					break;
-				case 'REPLACE':
-					logMsg( 'Doing upgrade REPLACE (testing)' );
-					$sql[] = $xmls->dict->DropTableSQL( $this->name );
-					$sql[] = $xmls->dict->CreateTableSQL( $this->name, $fldarray, $this->opts );
-					break;
-				// ignore table
-				default:
-					return array();
-			}
-		}
-		
-		foreach( $this->indexes as $index ) {
-			$sql[] = $index->create( $xmls );
-		}
-		
-		if( isset( $this->data ) ) {
-			$sql[] = $this->data->create( $xmls );
-		}
-		
-		return $sql;
-	}
-	
-	/**
-	* Marks a field or table for destruction
-	*/
-	function drop() {
-		if( isset( $this->current_field ) ) {
-			// Drop the current field
-			logMsg( "Dropping field '{$this->current_field}' from table '{$this->name}'" );
-			// $this->drop_field[$this->current_field] = $xmls->dict->DropColumnSQL( $this->name, $this->current_field );
-			$this->drop_field[$this->current_field] = $this->current_field;
-		} else {
-			// Drop the current table
-			logMsg( "Dropping table '{$this->name}'" );
-			// $this->drop_table = $xmls->dict->DropTableSQL( $this->name );
-			$this->drop_table = TRUE;
-		}
-	}
-}
-
-/**
-* Creates an index object in ADOdb's datadict format
-*
-* This class stores information about a database index. As charactaristics
-* of the index are loaded from the external source, methods and properties
-* of this class are used to build up the index description in ADOdb's
-* datadict format.
-*
-* @package axmls
-* @access private
-*/
-class dbIndex extends dbObject {
-	
-	/**
-	* @var string	Index name
-	*/
-	var $name;
-	
-	/**
-	* @var array	Index options: Index-level options
-	*/
-	var $opts = array();
-	
-	/**
-	* @var array	Indexed fields: Table columns included in this index
-	*/
-	var $columns = array();
-	
-	/**
-	* @var boolean Mark index for destruction
-	* @access private
-	*/
-	var $drop = FALSE;
-	
-	/**
-	* Initializes the new dbIndex object.
-	*
-	* @param object $parent Parent object
-	* @param array $attributes Attributes
-	*
-	* @internal
-	*/
-	function dbIndex( &$parent, $attributes = NULL ) {
-		$this->parent =& $parent;
-		
-		$this->name = $this->prefix ($attributes['NAME']);
-	}
-	
-	/**
-	* XML Callback to process start elements
-	*
-	* Processes XML opening tags. 
-	* Elements currently processed are: DROP, CLUSTERED, BITMAP, UNIQUE, FULLTEXT & HASH. 
-	*
-	* @access private
-	*/
-	function _tag_open( &$parser, $tag, $attributes ) {
-		$this->currentElement = strtoupper( $tag );
-		
-		switch( $this->currentElement ) {
-			case 'DROP':
-				$this->drop();
-				break;
-			case 'CLUSTERED':
-			case 'BITMAP':
-			case 'UNIQUE':
-			case 'FULLTEXT':
-			case 'HASH':
-				// Add index Option
-				$this->addIndexOpt( $this->currentElement );
-				break;
-			default:
-				// print_r( array( $tag, $attributes ) );
-		}
-	}
-	
-	/**
-	* XML Callback to process CDATA elements
-	*
-	* Processes XML cdata.
-	*
-	* @access private
-	*/
-	function _tag_cdata( &$parser, $cdata ) {
-		switch( $this->currentElement ) {
-			// Index field name
-			case 'COL':
-				$this->addField( $cdata );
-				break;
-			default:
-				
-		}
-	}
-	
-	/**
-	* XML Callback to process end elements
-	*
-	* @access private
-	*/
-	function _tag_close( &$parser, $tag ) {
-		$this->currentElement = '';
-		
-		switch( strtoupper( $tag ) ) {
-			case 'INDEX':
-				xml_set_object( $parser, $this->parent );
-				break;
-		}
-	}
-	
-	/**
-	* Adds a field to the index
-	*
-	* @param string $name Field name
-	* @return string Field list
-	*/
-	function addField( $name ) {
-		$this->columns[$this->FieldID( $name )] = $name;
-		
-		// Return the field list
-		return $this->columns;
-	}
-	
-	/**
-	* Adds options to the index
-	*
-	* @param string $opt Comma-separated list of index options.
-	* @return string Option list
-	*/
-	function addIndexOpt( $opt ) {
-		$this->opts[] = $opt;
-		
-		// Return the options list
-		return $this->opts;
-	}
-	
-	/**
-	* Generates the SQL that will create the index in the database
-	*
-	* @param object $xmls adoSchema object
-	* @return array Array containing index creation SQL
-	*/
-	function create( &$xmls ) {
-		if( $this->drop ) {
-			return NULL;
-		}
-		
-		// eliminate any columns that aren't in the table
-		foreach( $this->columns as $id => $col ) {
-			if( !isset( $this->parent->fields[$id] ) ) {
-				unset( $this->columns[$id] );
-			}
-		}
-		
-		return $xmls->dict->CreateIndexSQL( $this->name, $this->parent->name, $this->columns, $this->opts );
-	}
-	
-	/**
-	* Marks an index for destruction
-	*/
-	function drop() {
-		$this->drop = TRUE;
-	}
-}
-
-/**
-* Creates a data object in ADOdb's datadict format
-*
-* This class stores information about table data.
-*
-* @package axmls
-* @access private
-*/
-class dbData extends dbObject {
-	
-	var $data = array();
-	
-	var $row;
-	
-	/**
-	* Initializes the new dbIndex object.
-	*
-	* @param object $parent Parent object
-	* @param array $attributes Attributes
-	*
-	* @internal
-	*/
-	function dbData( &$parent, $attributes = NULL ) {
-		$this->parent =& $parent;
-	}
-	
-	/**
-	* XML Callback to process start elements
-	*
-	* Processes XML opening tags. 
-	* Elements currently processed are: DROP, CLUSTERED, BITMAP, UNIQUE, FULLTEXT & HASH. 
-	*
-	* @access private
-	*/
-	function _tag_open( &$parser, $tag, $attributes ) {
-		$this->currentElement = strtoupper( $tag );
-		
-		switch( $this->currentElement ) {
-			case 'ROW':
-				$this->row = count( $this->data );
-				$this->data[$this->row] = array();
-				break;
-			case 'F':
-				$this->addField($attributes);
-			default:
-				// print_r( array( $tag, $attributes ) );
-		}
-	}
-	
-	/**
-	* XML Callback to process CDATA elements
-	*
-	* Processes XML cdata.
-	*
-	* @access private
-	*/
-	function _tag_cdata( &$parser, $cdata ) {
-		switch( $this->currentElement ) {
-			// Index field name
-			case 'F':
-				$this->addData( $cdata );
-				break;
-			default:
-				
-		}
-	}
-	
-	/**
-	* XML Callback to process end elements
-	*
-	* @access private
-	*/
-	function _tag_close( &$parser, $tag ) {
-		$this->currentElement = '';
-		
-		switch( strtoupper( $tag ) ) {
-			case 'DATA':
-				xml_set_object( $parser, $this->parent );
-				break;
-		}
-	}
-	
-	/**
-	* Adds a field to the index
-	*
-	* @param string $name Field name
-	* @return string Field list
-	*/
-	function addField( $attributes ) {
-		if( isset( $attributes['NAME'] ) ) {
-			$name = $attributes['NAME'];
-		} else {
-			$name = count($this->data[$this->row]);
-		}
-		
-		// Set the field index so we know where we are
-		$this->current_field = $this->FieldID( $name );
-	}
-	
-	/**
-	* Adds options to the index
-	*
-	* @param string $opt Comma-separated list of index options.
-	* @return string Option list
-	*/
-	function addData( $cdata ) {
-		if( !isset( $this->data[$this->row] ) ) {
-			$this->data[$this->row] = array();
-		}
-		
-		if( !isset( $this->data[$this->row][$this->current_field] ) ) {
-			$this->data[$this->row][$this->current_field] = '';
-		}
-		
-		$this->data[$this->row][$this->current_field] .= $cdata;
-	}
-	
-	/**
-	* Generates the SQL that will create the index in the database
-	*
-	* @param object $xmls adoSchema object
-	* @return array Array containing index creation SQL
-	*/
-	function create( &$xmls ) {
-		$table = $xmls->dict->TableName($this->parent->name);
-		$table_field_count = count($this->parent->fields);
-		$sql = array();
-		
-		// eliminate any columns that aren't in the table
-		foreach( $this->data as $row ) {
-			$table_fields = $this->parent->fields;
-			$fields = array();
-			
-			foreach( $row as $field_id => $field_data ) {
-				if( !array_key_exists( $field_id, $table_fields ) ) {
-					if( is_numeric( $field_id ) ) {
-						$field_id = reset( array_keys( $table_fields ) );
-					} else {
-						continue;
-					}
-				}
-				
-				$name = $table_fields[$field_id]['NAME'];
-				
-				switch( $table_fields[$field_id]['TYPE'] ) {
-					case 'C':
-					case 'C2':
-					case 'X':
-					case 'X2':
-						$fields[$name] = $xmls->db->qstr( $field_data );
-						break;
-					case 'I':
-					case 'I1':
-					case 'I2':
-					case 'I4':
-					case 'I8':
-						$fields[$name] = intval($field_data);
-						break;
-					default:
-						$fields[$name] = $field_data;
-				}
-				
-				unset($table_fields[$field_id]);
-			}
-			
-			// check that at least 1 column is specified
-			if( empty( $fields ) ) {
-				continue;
-			}
-			
-			// check that no required columns are missing
-			if( count( $fields ) < $table_field_count ) {
-				foreach( $table_fields as $field ) {
-					if (isset( $field['OPTS'] ))
-						if( ( in_array( 'NOTNULL', $field['OPTS'] ) || in_array( 'KEY', $field['OPTS'] ) ) && !in_array( 'AUTOINCREMENT', $field['OPTS'] ) ) {
-							continue(2);
-						}
-				}
-			}
-			
-			$sql[] = 'INSERT INTO '. $table .' ('. implode( ',', array_keys( $fields ) ) .') VALUES ('. implode( ',', $fields ) .')';
-		}
-		
-		return $sql;
-	}
-}
-
-/**
-* Creates the SQL to execute a list of provided SQL queries
-*
-* @package axmls
-* @access private
-*/
-class dbQuerySet extends dbObject {
-	
-	/**
-	* @var array	List of SQL queries
-	*/
-	var $queries = array();
-	
-	/**
-	* @var string	String used to build of a query line by line
-	*/
-	var $query;
-	
-	/**
-	* @var string	Query prefix key
-	*/
-	var $prefixKey = '';
-	
-	/**
-	* @var boolean	Auto prefix enable (TRUE)
-	*/
-	var $prefixMethod = 'AUTO';
-	
-	/**
-	* Initializes the query set.
-	*
-	* @param object $parent Parent object
-	* @param array $attributes Attributes
-	*/
-	function dbQuerySet( &$parent, $attributes = NULL ) {
-		$this->parent =& $parent;
-			
-		// Overrides the manual prefix key
-		if( isset( $attributes['KEY'] ) ) {
-			$this->prefixKey = $attributes['KEY'];
-		}
-		
-		$prefixMethod = isset( $attributes['PREFIXMETHOD'] ) ? strtoupper( trim( $attributes['PREFIXMETHOD'] ) ) : '';
-		
-		// Enables or disables automatic prefix prepending
-		switch( $prefixMethod ) {
-			case 'AUTO':
-				$this->prefixMethod = 'AUTO';
-				break;
-			case 'MANUAL':
-				$this->prefixMethod = 'MANUAL';
-				break;
-			case 'NONE':
-				$this->prefixMethod = 'NONE';
-				break;
-		}
-	}
-	
-	/**
-	* XML Callback to process start elements. Elements currently 
-	* processed are: QUERY. 
-	*
-	* @access private
-	*/
-	function _tag_open( &$parser, $tag, $attributes ) {
-		$this->currentElement = strtoupper( $tag );
-		
-		switch( $this->currentElement ) {
-			case 'QUERY':
-				// Create a new query in a SQL queryset.
-				// Ignore this query set if a platform is specified and it's different than the 
-				// current connection platform.
-				if( !isset( $attributes['PLATFORM'] ) OR $this->supportedPlatform( $attributes['PLATFORM'] ) ) {
-					$this->newQuery();
-				} else {
-					$this->discardQuery();
-				}
-				break;
-			default:
-				// print_r( array( $tag, $attributes ) );
-		}
-	}
-	
-	/**
-	* XML Callback to process CDATA elements
-	*/
-	function _tag_cdata( &$parser, $cdata ) {
-		switch( $this->currentElement ) {
-			// Line of queryset SQL data
-			case 'QUERY':
-				$this->buildQuery( $cdata );
-				break;
-			default:
-				
-		}
-	}
-	
-	/**
-	* XML Callback to process end elements
-	*
-	* @access private
-	*/
-	function _tag_close( &$parser, $tag ) {
-		$this->currentElement = '';
-		
-		switch( strtoupper( $tag ) ) {
-			case 'QUERY':
-				// Add the finished query to the open query set.
-				$this->addQuery();
-				break;
-			case 'SQL':
-				$this->parent->addSQL( $this->create( $this->parent ) );
-				xml_set_object( $parser, $this->parent );
-				$this->destroy();
-				break;
-			default:
-				
-		}
-	}
-	
-	/**
-	* Re-initializes the query.
-	*
-	* @return boolean TRUE
-	*/
-	function newQuery() {
-		$this->query = '';
-		
-		return TRUE;
-	}
-	
-	/**
-	* Discards the existing query.
-	*
-	* @return boolean TRUE
-	*/
-	function discardQuery() {
-		unset( $this->query );
-		
-		return TRUE;
-	}
-	
-	/** 
-	* Appends a line to a query that is being built line by line
-	*
-	* @param string $data Line of SQL data or NULL to initialize a new query
-	* @return string SQL query string.
-	*/
-	function buildQuery( $sql = NULL ) {
-		if( !isset( $this->query ) OR empty( $sql ) ) {
-			return FALSE;
-		}
-		
-		$this->query .= $sql;
-		
-		return $this->query;
-	}
-	
-	/**
-	* Adds a completed query to the query list
-	*
-	* @return string	SQL of added query
-	*/
-	function addQuery() {
-		if( !isset( $this->query ) ) {
-			return FALSE;
-		}
-		
-		$this->queries[] = $return = trim($this->query);
-		
-		unset( $this->query );
-		
-		return $return;
-	}
-	
-	/**
-	* Creates and returns the current query set
-	*
-	* @param object $xmls adoSchema object
-	* @return array Query set
-	*/
-	function create( &$xmls ) {
-		foreach( $this->queries as $id => $query ) {
-			switch( $this->prefixMethod ) {
-				case 'AUTO':
-					// Enable auto prefix replacement
-					
-					// Process object prefix.
-					// Evaluate SQL statements to prepend prefix to objects
-					$query = $this->prefixQuery( '/^\s*((?is)INSERT\s+(INTO\s+)?)((\w+\s*,?\s*)+)(\s.*$)/', $query, $xmls->objectPrefix );
-					$query = $this->prefixQuery( '/^\s*((?is)UPDATE\s+(FROM\s+)?)((\w+\s*,?\s*)+)(\s.*$)/', $query, $xmls->objectPrefix );
-					$query = $this->prefixQuery( '/^\s*((?is)DELETE\s+(FROM\s+)?)((\w+\s*,?\s*)+)(\s.*$)/', $query, $xmls->objectPrefix );
-					
-					// SELECT statements aren't working yet
-					#$data = preg_replace( '/(?ias)(^\s*SELECT\s+.*\s+FROM)\s+(\W\s*,?\s*)+((?i)\s+WHERE.*$)/', "\1 $prefix\2 \3", $data );
-					
-				case 'MANUAL':
-					// If prefixKey is set and has a value then we use it to override the default constant XMLS_PREFIX.
-					// If prefixKey is not set, we use the default constant XMLS_PREFIX
-					if( isset( $this->prefixKey ) AND( $this->prefixKey !== '' ) ) {
-						// Enable prefix override
-						$query = str_replace( $this->prefixKey, $xmls->objectPrefix, $query );
-					} else {
-						// Use default replacement
-						$query = str_replace( XMLS_PREFIX , $xmls->objectPrefix, $query );
-					}
-			}
-			
-			$this->queries[$id] = trim( $query );
-		}
-		
-		// Return the query set array
-		return $this->queries;
-	}
-	
-	/**
-	* Rebuilds the query with the prefix attached to any objects
-	*
-	* @param string $regex Regex used to add prefix
-	* @param string $query SQL query string
-	* @param string $prefix Prefix to be appended to tables, indices, etc.
-	* @return string Prefixed SQL query string.
-	*/
-	function prefixQuery( $regex, $query, $prefix = NULL ) {
-		if( !isset( $prefix ) ) {
-			return $query;
-		}
-		
-		if( preg_match( $regex, $query, $match ) ) {
-			$preamble = $match[1];
-			$postamble = $match[5];
-			$objectList = explode( ',', $match[3] );
-			// $prefix = $prefix . '_';
-			
-			$prefixedList = '';
-			
-			foreach( $objectList as $object ) {
-				if( $prefixedList !== '' ) {
-					$prefixedList .= ', ';
-				}
-				
-				$prefixedList .= $prefix . trim( $object );
-			}
-			
-			$query = $preamble . ' ' . $prefixedList . ' ' . $postamble;
-		}
-		
-		return $query;
-	}
-}
-
-/**
-* Loads and parses an XML file, creating an array of "ready-to-run" SQL statements
-* 
-* This class is used to load and parse the XML file, to create an array of SQL statements
-* that can be used to build a database, and to build the database using the SQL array.
-*
-* @tutorial getting_started.pkg
-*
-* @author Richard Tango-Lowy & Dan Cech
-* @version $Revision: 1.12 $
-*
-* @package axmls
-*/
-class adoSchema {
-	
-	/**
-	* @var array	Array containing SQL queries to generate all objects
-	* @access private
-	*/
-	var $sqlArray;
-	
-	/**
-	* @var object	ADOdb connection object
-	* @access private
-	*/
-	var $db;
-	
-	/**
-	* @var object	ADOdb Data Dictionary
-	* @access private
-	*/
-	var $dict;
-	
-	/**
-	* @var string Current XML element
-	* @access private
-	*/
-	var $currentElement = '';
-	
-	/**
-	* @var string If set (to 'ALTER' or 'REPLACE'), upgrade an existing database
-	* @access private
-	*/
-	var $upgrade = '';
-	
-	/**
-	* @var string Optional object prefix
-	* @access private
-	*/
-	var $objectPrefix = '';
-	
-	/**
-	* @var long	Original Magic Quotes Runtime value
-	* @access private
-	*/
-	var $mgq;
-	
-	/**
-	* @var long	System debug
-	* @access private
-	*/
-	var $debug;
-	
-	/**
-	* @var string Regular expression to find schema version
-	* @access private
-	*/
-	var $versionRegex = '/<schema.*?( version="([^"]*)")?.*?>/';
-	
-	/**
-	* @var string Current schema version
-	* @access private
-	*/
-	var $schemaVersion;
-	
-	/**
-	* @var int	Success of last Schema execution
-	*/
-	var $success;
-	
-	/**
-	* @var bool	Execute SQL inline as it is generated
-	*/
-	var $executeInline;
-	
-	/**
-	* @var bool	Continue SQL execution if errors occur
-	*/
-	var $continueOnError;
-	
-	/**
-	* Creates an adoSchema object
-	*
-	* Creating an adoSchema object is the first step in processing an XML schema.
-	* The only parameter is an ADOdb database connection object, which must already
-	* have been created.
-	*
-	* @param object $db ADOdb database connection object.
-	*/
-	function adoSchema( &$db ) {
-		// Initialize the environment
-		$this->mgq = get_magic_quotes_runtime();
-		set_magic_quotes_runtime(0);
-		
-		$this->db =& $db;
-		$this->debug = $this->db->debug;
-		$this->dict = NewDataDictionary( $this->db );
-		$this->sqlArray = array();
-		$this->schemaVersion = XMLS_SCHEMA_VERSION;
-		$this->executeInline( XMLS_EXECUTE_INLINE );
-		$this->continueOnError( XMLS_CONTINUE_ON_ERROR );
-		$this->setUpgradeMethod();
-	}
-	
-	/**
-	* Sets the method to be used for upgrading an existing database
-	*
-	* Use this method to specify how existing database objects should be upgraded.
-	* The method option can be set to ALTER, REPLACE, BEST, or NONE. ALTER attempts to
-	* alter each database object directly, REPLACE attempts to rebuild each object
-	* from scratch, BEST attempts to determine the best upgrade method for each
-	* object, and NONE disables upgrading.
-	*
-	* This method is not yet used by AXMLS, but exists for backward compatibility.
-	* The ALTER method is automatically assumed when the adoSchema object is
-	* instantiated; other upgrade methods are not currently supported.
-	*
-	* @param string $method Upgrade method (ALTER|REPLACE|BEST|NONE)
-	* @returns string Upgrade method used
-	*/
-	function SetUpgradeMethod( $method = '' ) {
-		if( !is_string( $method ) ) {
-			return FALSE;
-		}
-		
-		$method = strtoupper( $method );
-		
-		// Handle the upgrade methods
-		switch( $method ) {
-			case 'ALTER':
-				$this->upgrade = $method;
-				break;
-			case 'REPLACE':
-				$this->upgrade = $method;
-				break;
-			case 'BEST':
-				$this->upgrade = 'ALTER';
-				break;
-			case 'NONE':
-				$this->upgrade = 'NONE';
-				break;
-			default:
-				// Use default if no legitimate method is passed.
-				$this->upgrade = XMLS_DEFAULT_UPGRADE_METHOD;
-		}
-		
-		return $this->upgrade;
-	}
-	
-	/**
-	* Enables/disables inline SQL execution.
-	*
-	* Call this method to enable or disable inline execution of the schema. If the mode is set to TRUE (inline execution),
-	* AXMLS applies the SQL to the database immediately as each schema entity is parsed. If the mode
-	* is set to FALSE (post execution), AXMLS parses the entire schema and you will need to call adoSchema::ExecuteSchema()
-	* to apply the schema to the database.
-	*
-	* @param bool $mode execute
-	* @return bool current execution mode
-	*
-	* @see ParseSchema(), ExecuteSchema()
-	*/
-	function ExecuteInline( $mode = NULL ) {
-		if( is_bool( $mode ) ) {
-			$this->executeInline = $mode;
-		}
-		
-		return $this->executeInline;
-	}
-	
-	/**
-	* Enables/disables SQL continue on error.
-	*
-	* Call this method to enable or disable continuation of SQL execution if an error occurs.
-	* If the mode is set to TRUE (continue), AXMLS will continue to apply SQL to the database, even if an error occurs.
-	* If the mode is set to FALSE (halt), AXMLS will halt execution of generated sql if an error occurs, though parsing
-	* of the schema will continue.
-	*
-	* @param bool $mode execute
-	* @return bool current continueOnError mode
-	*
-	* @see addSQL(), ExecuteSchema()
-	*/
-	function ContinueOnError( $mode = NULL ) {
-		if( is_bool( $mode ) ) {
-			$this->continueOnError = $mode;
-		}
-		
-		return $this->continueOnError;
-	}
-	
-	/**
-	* Loads an XML schema from a file and converts it to SQL.
-	*
-	* Call this method to load the specified schema (see the DTD for the proper format) from
-	* the filesystem and generate the SQL necessary to create the database described. 
-	* @see ParseSchemaString()
-	*
-	* @param string $file Name of XML schema file.
-	* @param bool $returnSchema Return schema rather than parsing.
-	* @return array Array of SQL queries, ready to execute
-	*/
-	function ParseSchema( $filename, $returnSchema = FALSE ) {
-		return $this->ParseSchemaString( $this->ConvertSchemaFile( $filename ), $returnSchema );
-	}
-	
-	/**
-	* Loads an XML schema from a file and converts it to SQL.
-	*
-	* Call this method to load the specified schema from a file (see the DTD for the proper format) 
-	* and generate the SQL necessary to create the database described by the schema.
-	*
-	* @param string $file Name of XML schema file.
-	* @param bool $returnSchema Return schema rather than parsing.
-	* @return array Array of SQL queries, ready to execute.
-	*
-	* @deprecated Replaced by adoSchema::ParseSchema() and adoSchema::ParseSchemaString()
-	* @see ParseSchema(), ParseSchemaString()
-	*/
-	function ParseSchemaFile( $filename, $returnSchema = FALSE ) {
-		// Open the file
-		if( !($fp = fopen( $filename, 'r' )) ) {
-			// die( 'Unable to open file' );
-			return FALSE;
-		}
-		
-		// do version detection here
-		if( $this->SchemaFileVersion( $filename ) != $this->schemaVersion ) {
-			return FALSE;
-		}
-		
-		if ( $returnSchema )
-		{
-			$xmlstring = '';
-			while( $data = fread( $fp, 100000 ) ) {
-				$xmlstring .= $data;
-			}
-			return $xmlstring;
-		}
-		
-		$this->success = 2;
-		
-		$xmlParser = $this->create_parser();
-		
-		// Process the file
-		while( $data = fread( $fp, 4096 ) ) {
-			if( !xml_parse( $xmlParser, $data, feof( $fp ) ) ) {
-				die( sprintf(
-					"XML error: %s at line %d",
-					xml_error_string( xml_get_error_code( $xmlParser) ),
-					xml_get_current_line_number( $xmlParser)
-				) );
-			}
-		}
-		
-		xml_parser_free( $xmlParser );
-		
-		return $this->sqlArray;
-	}
-	
-	/**
-	* Converts an XML schema string to SQL.
-	*
-	* Call this method to parse a string containing an XML schema (see the DTD for the proper format)
-	* and generate the SQL necessary to create the database described by the schema. 
-	* @see ParseSchema()
-	*
-	* @param string $xmlstring XML schema string.
-	* @param bool $returnSchema Return schema rather than parsing.
-	* @return array Array of SQL queries, ready to execute.
-	*/
-	function ParseSchemaString( $xmlstring, $returnSchema = FALSE ) {
-		if( !is_string( $xmlstring ) OR empty( $xmlstring ) ) {
-			return FALSE;
-		}
-		
-		// do version detection here
-		if( $this->SchemaStringVersion( $xmlstring ) != $this->schemaVersion ) {
-			return FALSE;
-		}
-		
-		if ( $returnSchema )
-		{
-			return $xmlstring;
-		}
-		
-		$this->success = 2;
-		
-		$xmlParser = $this->create_parser();
-		
-		if( !xml_parse( $xmlParser, $xmlstring, TRUE ) ) {
-			die( sprintf(
-				"XML error: %s at line %d",
-				xml_error_string( xml_get_error_code( $xmlParser) ),
-				xml_get_current_line_number( $xmlParser)
-			) );
-		}
-		
-		xml_parser_free( $xmlParser );
-		
-		return $this->sqlArray;
-	}
-	
-	/**
-	* Loads an XML schema from a file and converts it to uninstallation SQL.
-	*
-	* Call this method to load the specified schema (see the DTD for the proper format) from
-	* the filesystem and generate the SQL necessary to remove the database described.
-	* @see RemoveSchemaString()
-	*
-	* @param string $file Name of XML schema file.
-	* @param bool $returnSchema Return schema rather than parsing.
-	* @return array Array of SQL queries, ready to execute
-	*/
-	function RemoveSchema( $filename, $returnSchema = FALSE ) {
-		return $this->RemoveSchemaString( $this->ConvertSchemaFile( $filename ), $returnSchema );
-	}
-	
-	/**
-	* Converts an XML schema string to uninstallation SQL.
-	*
-	* Call this method to parse a string containing an XML schema (see the DTD for the proper format)
-	* and generate the SQL necessary to uninstall the database described by the schema. 
-	* @see RemoveSchema()
-	*
-	* @param string $schema XML schema string.
-	* @param bool $returnSchema Return schema rather than parsing.
-	* @return array Array of SQL queries, ready to execute.
-	*/
-	function RemoveSchemaString( $schema, $returnSchema = FALSE ) {
-		
-		// grab current version
-		if( !( $version = $this->SchemaStringVersion( $schema ) ) ) {
-			return FALSE;
-		}
-		
-		return $this->ParseSchemaString( $this->TransformSchema( $schema, 'remove-' . $version), $returnSchema );
-	}
-	
-	/**
-	* Applies the current XML schema to the database (post execution).
-	*
-	* Call this method to apply the current schema (generally created by calling 
-	* ParseSchema() or ParseSchemaString() ) to the database (creating the tables, indexes, 
-	* and executing other SQL specified in the schema) after parsing.
-	* @see ParseSchema(), ParseSchemaString(), ExecuteInline()
-	*
-	* @param array $sqlArray Array of SQL statements that will be applied rather than
-	*		the current schema.
-	* @param boolean $continueOnErr Continue to apply the schema even if an error occurs.
-	* @returns integer 0 if failure, 1 if errors, 2 if successful.
-	*/
-	function ExecuteSchema( $sqlArray = NULL, $continueOnErr =  NULL ) {
-		if( !is_bool( $continueOnErr ) ) {
-			$continueOnErr = $this->ContinueOnError();
-		}
-		
-		if( !isset( $sqlArray ) ) {
-			$sqlArray = $this->sqlArray;
-		}
-		
-		if( !is_array( $sqlArray ) ) {
-			$this->success = 0;
-		} else {
-			$this->success = $this->dict->ExecuteSQLArray( $sqlArray, $continueOnErr );
-		}
-		
-		return $this->success;
-	}
-	
-	/**
-	* Returns the current SQL array. 
-	*
-	* Call this method to fetch the array of SQL queries resulting from 
-	* ParseSchema() or ParseSchemaString(). 
-	*
-	* @param string $format Format: HTML, TEXT, or NONE (PHP array)
-	* @return array Array of SQL statements or FALSE if an error occurs
-	*/
-	function PrintSQL( $format = 'NONE' ) {
-		$sqlArray = null;
-		return $this->getSQL( $format, $sqlArray );
-	}
-	
-	/**
-	* Saves the current SQL array to the local filesystem as a list of SQL queries.
-	*
-	* Call this method to save the array of SQL queries (generally resulting from a
-	* parsed XML schema) to the filesystem.
-	*
-	* @param string $filename Path and name where the file should be saved.
-	* @return boolean TRUE if save is successful, else FALSE. 
-	*/
-	function SaveSQL( $filename = './schema.sql' ) {
-		
-		if( !isset( $sqlArray ) ) {
-			$sqlArray = $this->sqlArray;
-		}
-		if( !isset( $sqlArray ) ) {
-			return FALSE;
-		}
-		
-		$fp = fopen( $filename, "w" );
-		
-		foreach( $sqlArray as $key => $query ) {
-			fwrite( $fp, $query . ";\n" );
-		}
-		fclose( $fp );
-	}
-	
-	/**
-	* Create an xml parser
-	*
-	* @return object PHP XML parser object
-	*
-	* @access private
-	*/
-	function &create_parser() {
-		// Create the parser
-		$xmlParser = xml_parser_create();
-		xml_set_object( $xmlParser, $this );
-		
-		// Initialize the XML callback functions
-		xml_set_element_handler( $xmlParser, '_tag_open', '_tag_close' );
-		xml_set_character_data_handler( $xmlParser, '_tag_cdata' );
-		
-		return $xmlParser;
-	}
-	
-	/**
-	* XML Callback to process start elements
-	*
-	* @access private
-	*/
-	function _tag_open( &$parser, $tag, $attributes ) {
-		switch( strtoupper( $tag ) ) {
-			case 'TABLE':
-				$this->obj = new dbTable( $this, $attributes );
-				xml_set_object( $parser, $this->obj );
-				break;
-			case 'SQL':
-				if( !isset( $attributes['PLATFORM'] ) OR $this->supportedPlatform( $attributes['PLATFORM'] ) ) {
-					$this->obj = new dbQuerySet( $this, $attributes );
-					xml_set_object( $parser, $this->obj );
-				}
-				break;
-			default:
-				// print_r( array( $tag, $attributes ) );
-		}
-		
-	}
-	
-	/**
-	* XML Callback to process CDATA elements
-	*
-	* @access private
-	*/
-	function _tag_cdata( &$parser, $cdata ) {
-	}
-	
-	/**
-	* XML Callback to process end elements
-	*
-	* @access private
-	* @internal
-	*/
-	function _tag_close( &$parser, $tag ) {
-		
-	}
-	
-	/**
-	* Converts an XML schema string to the specified DTD version.
-	*
-	* Call this method to convert a string containing an XML schema to a different AXMLS
-	* DTD version. For instance, to convert a schema created for an pre-1.0 version for 
-	* AXMLS (DTD version 0.1) to a newer version of the DTD (e.g. 0.2). If no DTD version 
-	* parameter is specified, the schema will be converted to the current DTD version. 
-	* If the newFile parameter is provided, the converted schema will be written to the specified
-	* file.
-	* @see ConvertSchemaFile()
-	*
-	* @param string $schema String containing XML schema that will be converted.
-	* @param string $newVersion DTD version to convert to.
-	* @param string $newFile File name of (converted) output file.
-	* @return string Converted XML schema or FALSE if an error occurs.
-	*/
-	function ConvertSchemaString( $schema, $newVersion = NULL, $newFile = NULL ) {
-		
-		// grab current version
-		if( !( $version = $this->SchemaStringVersion( $schema ) ) ) {
-			return FALSE;
-		}
-		
-		if( !isset ($newVersion) ) {
-			$newVersion = $this->schemaVersion;
-		}
-		
-		if( $version == $newVersion ) {
-			$result = $schema;
-		} else {
-			$result = $this->TransformSchema( $schema, 'convert-' . $version . '-' . $newVersion);
-		}
-		
-		if( is_string( $result ) AND is_string( $newFile ) AND ( $fp = fopen( $newFile, 'w' ) ) ) {
-			fwrite( $fp, $result );
-			fclose( $fp );
-		}
-		
-		return $result;
-	}
-	
-	// compat for pre-4.3 - jlim
-	function _file_get_contents($path)
-	{
-		if (function_exists('file_get_contents')) return file_get_contents($path);
-		return join('',file($path));
-	}
-	
-	/**
-	* Converts an XML schema file to the specified DTD version.
-	*
-	* Call this method to convert the specified XML schema file to a different AXMLS
-	* DTD version. For instance, to convert a schema created for an pre-1.0 version for 
-	* AXMLS (DTD version 0.1) to a newer version of the DTD (e.g. 0.2). If no DTD version 
-	* parameter is specified, the schema will be converted to the current DTD version. 
-	* If the newFile parameter is provided, the converted schema will be written to the specified
-	* file.
-	* @see ConvertSchemaString()
-	*
-	* @param string $filename Name of XML schema file that will be converted.
-	* @param string $newVersion DTD version to convert to.
-	* @param string $newFile File name of (converted) output file.
-	* @return string Converted XML schema or FALSE if an error occurs.
-	*/
-	function ConvertSchemaFile( $filename, $newVersion = NULL, $newFile = NULL ) {
-		
-		// grab current version
-		if( !( $version = $this->SchemaFileVersion( $filename ) ) ) {
-			return FALSE;
-		}
-		
-		if( !isset ($newVersion) ) {
-			$newVersion = $this->schemaVersion;
-		}
-		
-		if( $version == $newVersion ) {
-			$result = _file_get_contents( $filename );
-			
-			// remove unicode BOM if present
-			if( substr( $result, 0, 3 ) == sprintf( '%c%c%c', 239, 187, 191 ) ) {
-				$result = substr( $result, 3 );
-			}
-		} else {
-			$result = $this->TransformSchema( $filename, 'convert-' . $version . '-' . $newVersion, 'file' );
-		}
-		
-		if( is_string( $result ) AND is_string( $newFile ) AND ( $fp = fopen( $newFile, 'w' ) ) ) {
-			fwrite( $fp, $result );
-			fclose( $fp );
-		}
-		
-		return $result;
-	}
-	
-	function TransformSchema( $schema, $xsl, $schematype='string' )
-	{
-		// Fail if XSLT extension is not available
-		if( ! function_exists( 'xslt_create' ) ) {
-			return FALSE;
-		}
-		
-		$xsl_file = dirname( __FILE__ ) . '/xsl/' . $xsl . '.xsl';
-		
-		// look for xsl
-		if( !is_readable( $xsl_file ) ) {
-			return FALSE;
-		}
-		
-		switch( $schematype )
-		{
-			case 'file':
-				if( !is_readable( $schema ) ) {
-					return FALSE;
-				}
-				
-				$schema = _file_get_contents( $schema );
-				break;
-			case 'string':
-			default:
-				if( !is_string( $schema ) ) {
-					return FALSE;
-				}
-		}
-		
-		$arguments = array (
-			'/_xml' => $schema,
-			'/_xsl' => _file_get_contents( $xsl_file )
-		);
-		
-		// create an XSLT processor
-		$xh = xslt_create ();
-		
-		// set error handler
-		xslt_set_error_handler ($xh, array (&$this, 'xslt_error_handler'));
-		
-		// process the schema
-		$result = xslt_process ($xh, 'arg:/_xml', 'arg:/_xsl', NULL, $arguments); 
-		
-		xslt_free ($xh);
-		
-		return $result;
-	}
-	
-	/**
-	* Processes XSLT transformation errors
-	*
-	* @param object $parser XML parser object
-	* @param integer $errno Error number
-	* @param integer $level Error level
-	* @param array $fields Error information fields
-	*
-	* @access private
-	*/
-	function xslt_error_handler( $parser, $errno, $level, $fields ) {
-		if( is_array( $fields ) ) {
-			$msg = array(
-				'Message Type' => ucfirst( $fields['msgtype'] ),
-				'Message Code' => $fields['code'],
-				'Message' => $fields['msg'],
-				'Error Number' => $errno,
-				'Level' => $level
-			);
-			
-			switch( $fields['URI'] ) {
-				case 'arg:/_xml':
-					$msg['Input'] = 'XML';
-					break;
-				case 'arg:/_xsl':
-					$msg['Input'] = 'XSL';
-					break;
-				default:
-					$msg['Input'] = $fields['URI'];
-			}
-			
-			$msg['Line'] = $fields['line'];
-		} else {
-			$msg = array(
-				'Message Type' => 'Error',
-				'Error Number' => $errno,
-				'Level' => $level,
-				'Fields' => var_export( $fields, TRUE )
-			);
-		}
-		
-		$error_details = $msg['Message Type'] . ' in XSLT Transformation' . "\n"
-					   . '<table>' . "\n";
-		
-		foreach( $msg as $label => $details ) {
-			$error_details .= '<tr><td><b>' . $label . ': </b></td><td>' . htmlentities( $details ) . '</td></tr>' . "\n";
-		}
-		
-		$error_details .= '</table>';
-		
-		trigger_error( $error_details, E_USER_ERROR );
-	}
-	
-	/**
-	* Returns the AXMLS Schema Version of the requested XML schema file.
-	*
-	* Call this method to obtain the AXMLS DTD version of the requested XML schema file.
-	* @see SchemaStringVersion()
-	*
-	* @param string $filename AXMLS schema file
-	* @return string Schema version number or FALSE on error
-	*/
-	function SchemaFileVersion( $filename ) {
-		// Open the file
-		if( !($fp = fopen( $filename, 'r' )) ) {
-			// die( 'Unable to open file' );
-			return FALSE;
-		}
-		
-		// Process the file
-		while( $data = fread( $fp, 4096 ) ) {
-			if( preg_match( $this->versionRegex, $data, $matches ) ) {
-				return !empty( $matches[2] ) ? $matches[2] : XMLS_DEFAULT_SCHEMA_VERSION;
-			}
-		}
-		
-		return FALSE;
-	}
-	
-	/**
-	* Returns the AXMLS Schema Version of the provided XML schema string.
-	*
-	* Call this method to obtain the AXMLS DTD version of the provided XML schema string.
-	* @see SchemaFileVersion()
-	*
-	* @param string $xmlstring XML schema string
-	* @return string Schema version number or FALSE on error
-	*/
-	function SchemaStringVersion( $xmlstring ) {
-		if( !is_string( $xmlstring ) OR empty( $xmlstring ) ) {
-			return FALSE;
-		}
-		
-		if( preg_match( $this->versionRegex, $xmlstring, $matches ) ) {
-			return !empty( $matches[2] ) ? $matches[2] : XMLS_DEFAULT_SCHEMA_VERSION;
-		}
-		
-		return FALSE;
-	}
-	
-	/**
-	* Extracts an XML schema from an existing database.
-	*
-	* Call this method to create an XML schema string from an existing database.
-	* If the data parameter is set to TRUE, AXMLS will include the data from the database
-	* in the schema. 
-	*
-	* @param boolean $data Include data in schema dump
-	* @return string Generated XML schema
-	*/
-	function ExtractSchema( $data = FALSE ) {
-		$old_mode = $this->db->SetFetchMode( ADODB_FETCH_NUM );
-		
-		$schema = '<?xml version="1.0"?>' . "\n"
-				. '<schema version="' . $this->schemaVersion . '">' . "\n";
-		
-		if( is_array( $tables = $this->db->MetaTables( 'TABLES' ) ) ) {
-			foreach( $tables as $table ) {
-				$schema .= '	<table name="' . $table . '">' . "\n";
-				
-				// grab details from database
-				$rs = $this->db->Execute( 'SELECT * FROM ' . $table . ' WHERE 1=1' );
-				$fields = $this->db->MetaColumns( $table );
-				$indexes = $this->db->MetaIndexes( $table );
-				
-				if( is_array( $fields ) ) {
-					foreach( $fields as $details ) {
-						$extra = '';
-						$content = array();
-						
-						if( $details->max_length > 0 ) {
-							$extra .= ' size="' . $details->max_length . '"';
-						}
-						
-						if( $details->primary_key ) {
-							$content[] = '<KEY/>';
-						} elseif( $details->not_null ) {
-							$content[] = '<NOTNULL/>';
-						}
-						
-						if( $details->has_default ) {
-							$content[] = '<DEFAULT value="' . $details->default_value . '"/>';
-						}
-						
-						if( $details->auto_increment ) {
-							$content[] = '<AUTOINCREMENT/>';
-						}
-						
-						// this stops the creation of 'R' columns,
-						// AUTOINCREMENT is used to create auto columns
-						$details->primary_key = 0;
-						$type = $rs->MetaType( $details );
-						
-						$schema .= '		<field name="' . $details->name . '" type="' . $type . '"' . $extra . '>';
-						
-						if( !empty( $content ) ) {
-							$schema .= "\n			" . implode( "\n			", $content ) . "\n		";
-						}
-						
-						$schema .= '</field>' . "\n";
-					}
-				}
-				
-				if( is_array( $indexes ) ) {
-					foreach( $indexes as $index => $details ) {
-						$schema .= '		<index name="' . $index . '">' . "\n";
-						
-						if( $details['unique'] ) {
-							$schema .= '			<UNIQUE/>' . "\n";
-						}
-						
-						foreach( $details['columns'] as $column ) {
-							$schema .= '			<col>' . $column . '</col>' . "\n";
-						}
-						
-						$schema .= '		</index>' . "\n";
-					}
-				}
-				
-				if( $data ) {
-					$rs = $this->db->Execute( 'SELECT * FROM ' . $table );
-					
-					if( is_object( $rs ) ) {
-						$schema .= '		<data>' . "\n";
-						
-						while( $row = $rs->FetchRow() ) {
-							foreach( $row as $key => $val ) {
-								$row[$key] = htmlentities($val);
-							}
-							
-							$schema .= '			<row><f>' . implode( '</f><f>', $row ) . '</f></row>' . "\n";
-						}
-						
-						$schema .= '		</data>' . "\n";
-					}
-				}
-				
-				$schema .= '	</table>' . "\n";
-			}
-		}
-		
-		$this->db->SetFetchMode( $old_mode );
-		
-		$schema .= '</schema>';
-		return $schema;
-	}
-	
-	/**
-	* Sets a prefix for database objects
-	*
-	* Call this method to set a standard prefix that will be prepended to all database tables 
-	* and indices when the schema is parsed. Calling setPrefix with no arguments clears the prefix.
-	*
-	* @param string $prefix Prefix that will be prepended.
-	* @param boolean $underscore If TRUE, automatically append an underscore character to the prefix.
-	* @return boolean TRUE if successful, else FALSE
-	*/
-	function SetPrefix( $prefix = '', $underscore = TRUE ) {
-		switch( TRUE ) {
-			// clear prefix
-			case empty( $prefix ):
-				logMsg( 'Cleared prefix' );
-				$this->objectPrefix = '';
-				return TRUE;
-			// prefix too long
-			case strlen( $prefix ) > XMLS_PREFIX_MAXLEN:
-			// prefix contains invalid characters
-			case !preg_match( '/^[a-z][a-z0-9_]+$/i', $prefix ):
-				logMsg( 'Invalid prefix: ' . $prefix );
-				return FALSE;
-		}
-		
-		if( $underscore AND substr( $prefix, -1 ) != '_' ) {
-			$prefix .= '_';
-		}
-		
-		// prefix valid
-		logMsg( 'Set prefix: ' . $prefix );
-		$this->objectPrefix = $prefix;
-		return TRUE;
-	}
-	
-	/**
-	* Returns an object name with the current prefix prepended.
-	*
-	* @param string	$name Name
-	* @return string	Prefixed name
-	*
-	* @access private
-	*/
-	function prefix( $name = '' ) {
-		// if prefix is set
-		if( !empty( $this->objectPrefix ) ) {
-			// Prepend the object prefix to the table name
-			// prepend after quote if used
-			return preg_replace( '/^(`?)(.+)$/', '$1' . $this->objectPrefix . '$2', $name );
-		}
-		
-		// No prefix set. Use name provided.
-		return $name;
-	}
-	
-	/**
-	* Checks if element references a specific platform
-	*
-	* @param string $platform Requested platform
-	* @returns boolean TRUE if platform check succeeds
-	*
-	* @access private
-	*/
-	function supportedPlatform( $platform = NULL ) {
-		$regex = '/^(\w*\|)*' . $this->db->databaseType . '(\|\w*)*$/';
-		
-		if( !isset( $platform ) OR preg_match( $regex, $platform ) ) {
-			logMsg( "Platform $platform is supported" );
-			return TRUE;
-		} else {
-			logMsg( "Platform $platform is NOT supported" );
-			return FALSE;
-		}
-	}
-	
-	/**
-	* Clears the array of generated SQL.
-	*
-	* @access private
-	*/
-	function clearSQL() {
-		$this->sqlArray = array();
-	}
-	
-	/**
-	* Adds SQL into the SQL array.
-	*
-	* @param mixed $sql SQL to Add
-	* @return boolean TRUE if successful, else FALSE.
-	*
-	* @access private
-	*/	
-	function addSQL( $sql = NULL ) {
-		if( is_array( $sql ) ) {
-			foreach( $sql as $line ) {
-				$this->addSQL( $line );
-			}
-			
-			return TRUE;
-		}
-		
-		if( is_string( $sql ) ) {
-			$this->sqlArray[] = $sql;
-			
-			// if executeInline is enabled, and either no errors have occurred or continueOnError is enabled, execute SQL.
-			if( $this->ExecuteInline() && ( $this->success == 2 || $this->ContinueOnError() ) ) {
-				$saved = $this->db->debug;
-				$this->db->debug = $this->debug;
-				$ok = $this->db->Execute( $sql );
-				$this->db->debug = $saved;
-				
-				if( !$ok ) {
-					if( $this->debug ) {
-						ADOConnection::outp( $this->db->ErrorMsg() );
-					}
-					
-					$this->success = 1;
-				}
-			}
-			
-			return TRUE;
-		}
-		
-		return FALSE;
-	}
-	
-	/**
-	* Gets the SQL array in the specified format.
-	*
-	* @param string $format Format
-	* @return mixed SQL
-	*	
-	* @access private
-	*/
-	function getSQL( $format = NULL, $sqlArray = NULL ) {
-		if( !is_array( $sqlArray ) ) {
-			$sqlArray = $this->sqlArray;
-		}
-		
-		if( !is_array( $sqlArray ) ) {
-			return FALSE;
-		}
-		
-		switch( strtolower( $format ) ) {
-			case 'string':
-			case 'text':
-				return !empty( $sqlArray ) ? implode( ";\n\n", $sqlArray ) . ';' : '';
-			case'html':
-				return !empty( $sqlArray ) ? nl2br( htmlentities( implode( ";\n\n", $sqlArray ) . ';' ) ) : '';
-		}
-		
-		return $this->sqlArray;
-	}
-	
-	/**
-	* Destroys an adoSchema object.
-	*
-	* Call this method to clean up after an adoSchema object that is no longer in use.
-	* @deprecated adoSchema now cleans up automatically.
-	*/
-	function Destroy() {
-		set_magic_quotes_runtime( $this->mgq );
-		unset( $this );
-	}
-}
-
-/**
-* Message logging function
-*
-* @access private
-*/
-function logMsg( $msg, $title = NULL, $force = FALSE ) {
-	if( XMLS_DEBUG or $force ) {
-		echo '<pre>';
-		
-		if( isset( $title ) ) {
-			echo '<h3>' . htmlentities( $title ) . '</h3>';
-		}
-		
-		if( is_object( $this ) ) {
-			echo '[' . get_class( $this ) . '] ';
-		}
-		
-		print_r( $msg );
-		
-		echo '</pre>';
-	}
-}
-?>
\ No newline at end of file