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<DL>
<DT>public class <B>OpCodes</B><DT>extends java.lang.Object</DL>

<P>
Operations codes for XPath.

 Code for the descriptions of the operations codes:
 [UPPER CASE] indicates a literal value,
 [lower case] is a description of a value,
      ([length] always indicates the length of the operation,
       including the operations code and the length integer.)
 {UPPER CASE} indicates the given production,
 {description} is the description of a new production,
      (For instance, {boolean expression