# Class: com.pnfsoftware.jeb.util.format.XercesUpdater

Update some Apache Xerces \(XML parser\) character tables used by the JDK. Limited to JDK version 8. 

 The tables do not exactly follow the latest revision of the XML 1.0 specifications, and require tweaking \(via reflection hooks\) in order to properly parse exotic tag names, eg, using high\-value unicode characters. 

 Note: only the 1.0 table is updated with proper entries for `NameStartChar` and `NameStart` 

 Reference: https://www.w3.org/TR/xml/ \(XML 1.0 5th edition\)
 Reference: https://www.w3.org/TR/2006/REC\-xml11\-20060816/ \(XML 1.1 2nd edition\)

## Constructor: XercesUpdater

Description: Create an updater using the system class loader.

## Constructor: XercesUpdater
- parameter: `cl`, type: `java.lang.ClassLoader`

Description: Create an updater using the provided class loader.
parameter: cl: class loader used to locate Xerces character table classes

## Method: getModificationCount
- return type: `int`

Description: Get the number of table entries modified by the last update operations.
return: the cumulative modification count

## Method: update
- return type: `int`

Description: Update supported XML character tables.
return: the number of tables that were found and processed

