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Provides a basic XSLT 2.0 and XQuery 1.0 processor (W3C Recommendations, January 2007). Command line interfaces and implementations of several Java APIs (DOM, XPath, s9api) are also included.

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package net.sf.saxon.instruct;
import net.sf.saxon.om.ValueRepresentation;
import net.sf.saxon.trans.XPathException;
import net.sf.saxon.value.Closure;

/**
 * A ParameterSet is a set of parameters supplied when calling a template.
 * It is a collection of id-value pairs, the ids being numeric aliases for the parameter name,
 * unique within a stylesheet
 */

public class ParameterSet {
	private int[] keys;
    private ValueRepresentation[] values;
    private int used = 0;

    public static ParameterSet EMPTY_PARAMETER_SET = new ParameterSet(0);

    /**
     * Create an empty parameter set
     */

    public ParameterSet() {
        this(10);
    }

    /**
     * Create a parameter set specifying the initial capacity
     */

    public ParameterSet(int capacity) {
        keys = new int[capacity];
        values = new ValueRepresentation[capacity];
    }

    /**
     * Create a parameter set as a copy of an existing parameter set
     */

    public ParameterSet(ParameterSet existing, int extra) {
        this(existing.used + extra);
        for (int i=0; i keys.length) {
            int newlength = (used<=5 ? 10 : used*2);
        	int[] newkeys = new int[newlength];
            ValueRepresentation[] newvalues = new ValueRepresentation[newlength];
            System.arraycopy(values, 0, newvalues, 0, used);
            System.arraycopy(keys, 0, newkeys, 0, used);
            values = newvalues;
            keys = newkeys;
        }
        keys[used] = id;
        values[used++] = value;
    }

    /**
     * Get a parameter
     *
     * @param id The numeric parameter id, representing its name.
     * @return The value of the parameter, or null if not defined
     */

    public ValueRepresentation get (int id) {
        for (int i=0; i