Coverage Report - org.jaxen.function.NormalizeSpaceFunction

Classes in this Package	Line Coverage	Branch Coverage	Complexity
NormalizeSpaceFunction	95%	100%	4.5;4.5

1		/*
2		* $Header: /home/projects/jaxen/scm/jaxen/src/java/main/org/jaxen/function/NormalizeSpaceFunction.java,v 1.6 2004/09/16 21:38:19 bewins Exp $
3		* $Revision: 1.6 $
4		* $Date: 2004/09/16 21:38:19 $
5		*
6		* ====================================================================
7		*
8		* Copyright (C) 2000-2002 bob mcwhirter & James Strachan.
9		* All rights reserved.
10		*
11		* Redistribution and use in source and binary forms, with or without
12		* modification, are permitted provided that the following conditions
13		* are met:
14		*
15		* 1. Redistributions of source code must retain the above copyright
16		* notice, this list of conditions, and the following disclaimer.
17		*
18		* 2. Redistributions in binary form must reproduce the above copyright
19		* notice, this list of conditions, and the disclaimer that follows
20		* these conditions in the documentation and/or other materials
21		* provided with the distribution.
22		*
23		* 3. The name "Jaxen" must not be used to endorse or promote products
24		* derived from this software without prior written permission. For
25		* written permission, please contact license@jaxen.org.
26		*
27		* 4. Products derived from this software may not be called "Jaxen", nor
28		* may "Jaxen" appear in their name, without prior written permission
29		* from the Jaxen Project Management (pm@jaxen.org).
30		*
31		* In addition, we request (but do not require) that you include in the
32		* end-user documentation provided with the redistribution and/or in the
33		* software itself an acknowledgement equivalent to the following:
34		* "This product includes software developed by the
35		* Jaxen Project (http://www.jaxen.org/)."
36		* Alternatively, the acknowledgment may be graphical using the logos
37		* available at http://www.jaxen.org/
38		*
39		* THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESSED OR IMPLIED
40		* WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
41		* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
42		* DISCLAIMED. IN NO EVENT SHALL THE Jaxen AUTHORS OR THE PROJECT
43		* CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
44		* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
45		* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
46		* USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
47		* ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
48		* OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
49		* OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
50		* SUCH DAMAGE.
51		*
52		* ====================================================================
53		* This software consists of voluntary contributions made by many
54		* individuals on behalf of the Jaxen Project and was originally
55		* created by bob mcwhirter <bob@werken.com> and
56		* James Strachan <jstrachan@apache.org>. For more information on the
57		* Jaxen Project, please see <http://www.jaxen.org/>.
58		*
59		* $Id: NormalizeSpaceFunction.java,v 1.6 2004/09/16 21:38:19 bewins Exp $
60		*/
61
62
63		package org.jaxen.function;
64
65		import java.util.List;
66
67		import org.jaxen.Context;
68		import org.jaxen.Function;
69		import org.jaxen.FunctionCallException;
70		import org.jaxen.Navigator;
71
72		/**
73		* <p><b>4.2</b> <code><i>string</i> normalize-space(<i>string</i>)</code>
74		*
75		* @author James Strachan (james@metastuff.com)
76		*/
77	41	public class NormalizeSpaceFunction implements Function
78		{
79
80		public Object call(Context context,
81		List args) throws FunctionCallException
82		{
83	24	if (args.size() >= 1)
84		{
85	24	return evaluate( args.get(0),
86		context.getNavigator() );
87		}
88
89	0	throw new FunctionCallException( "normalize-space() requires one argument" );
90		}
91
92		public static String evaluate(Object strArg,
93		Navigator nav)
94		{
95	24	String str = StringFunction.evaluate( strArg,
96		nav );
97
98	24	char[] buffer = str.toCharArray();
99	24	int write = 0;
100	24	int lastWrite = 0;
101	24	boolean wroteOne = false;
102	24	int read = 0;
103	124	while (read < buffer.length)
104		{
105	100	if (Character.isWhitespace(buffer[read]))
106		{
107	52	if (wroteOne)
108		{
109	32	buffer[write++] = ' ';
110		}
111		do
112		{
113	128	read++;
114		}
115	128	while(read < buffer.length && Character.isWhitespace(buffer[read]));
116		}
117		else
118		{
119	48	buffer[write++] = buffer[read++];
120	48	wroteOne = true;
121	48	lastWrite = write;
122		}
123		}
124
125	24	return new String(buffer, 0, lastWrite);
126		}
127		}