PdfContentParser.java

/*
 * $Id: PdfContentParser.java 4066 2009-09-19 12:44:47Z psoares33 $
 *
 * Copyright 2005 by Paulo Soares.
 *
 * The contents of this file are subject to the Mozilla Public License Version 1.1
 * (the "License"); you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at http://www.mozilla.org/MPL/
 *
 * Software distributed under the License is distributed on an "AS IS" basis,
 * WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
 * for the specific language governing rights and limitations under the License.
 *
 * The Original Code is 'iText, a free JAVA-PDF library'.
 *
 * The Initial Developer of the Original Code is Bruno Lowagie. Portions created by
 * the Initial Developer are Copyright (C) 1999, 2000, 2001, 2002 by Bruno Lowagie.
 * All Rights Reserved.
 * Co-Developer of the code is Paulo Soares. Portions created by the Co-Developer
 * are Copyright (C) 2000, 2001, 2002 by Paulo Soares. All Rights Reserved.
 *
 * Contributor(s): all the names of the contributors are added in the source code
 * where applicable.
 *
 * Alternatively, the contents of this file may be used under the terms of the
 * LGPL license (the "GNU LIBRARY GENERAL PUBLIC LICENSE"), in which case the
 * provisions of LGPL are applicable instead of those above.  If you wish to
 * allow use of your version of this file only under the terms of the LGPL
 * License and not to allow others to use your version of this file under
 * the MPL, indicate your decision by deleting the provisions above and
 * replace them with the notice and other provisions required by the LGPL.
 * If you do not delete the provisions above, a recipient may use your version
 * of this file under either the MPL or the GNU LIBRARY GENERAL PUBLIC LICENSE.
 *
 * This library is free software; you can redistribute it and/or modify it
 * under the terms of the MPL as stated above or under the terms of the GNU
 * Library General Public License as published by the Free Software Foundation;
 * either version 2 of the License, or any later version.
 *
 * This library is distributed in the hope that it will be useful, but WITHOUT
 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
 * FOR A PARTICULAR PURPOSE. See the GNU Library general Public License for more
 * details.
 *
 * If you didn't download this code from the following link, you should check if
 * you aren't using an obsolete version:
 * http://www.lowagie.com/iText/
 */

package com.lowagie.text.pdf;

import java.io.IOException;
import java.util.ArrayList;
import java.util.List;

import com.lowagie.text.error_messages.MessageLocalization;
/**
 * Parses the page or template content.
 * @author Paulo Soares (psoares@consiste.pt)
 */
public class PdfContentParser {
    
    /**
     * Commands have this type.
     */    
    public static final int COMMAND_TYPE = 200;
    /**
     * Holds value of property tokeniser.
     */
    private PRTokeniser tokeniser;    
    
    /**
     * Creates a new instance of PdfContentParser
     * @param tokeniser the tokeniser with the content
     */
    public PdfContentParser(PRTokeniser tokeniser) {
        this.tokeniser = tokeniser;
    }
    
    /**
     * Parses a single command from the content. Each command is output as an array of arguments
     * having the command itself as the last element. The returned array will be empty if the
     * end of content was reached.
     * @param ls an <CODE>ArrayList</CODE> to use. It will be cleared before using. If it's
     * <CODE>null</CODE> will create a new <CODE>ArrayList</CODE>
     * @return the same <CODE>ArrayList</CODE> given as argument or a new one
     * @throws IOException on error
     */    
    public List<PdfObject> parse(List<PdfObject> ls) throws IOException {
        if (ls == null) {
            ls = new ArrayList<>();
        } else {
            ls.clear();
        }
        PdfObject ob;
        while ((ob = readPRObject()) != null) {
            ls.add(ob);
            if (ob.type() == COMMAND_TYPE) {
                break;
            }
        }
        return ls;
    }
    
    /**
     * Gets the tokeniser.
     * @return the tokeniser.
     */
    public PRTokeniser getTokeniser() {
        return this.tokeniser;
    }
    
    /**
     * Sets the tokeniser.
     * @param tokeniser the tokeniser
     */
    public void setTokeniser(PRTokeniser tokeniser) {
        this.tokeniser = tokeniser;
    }
    
    /**
     * Reads a dictionary. The tokeniser must be positioned past the "&lt;&lt;" token.
     * @return the dictionary
     * @throws IOException on error
     */    
    public PdfDictionary readDictionary() throws IOException {
        PdfDictionary dic = new PdfDictionary();
        while (true) {
            if (!nextValidToken())
                throw new IOException(MessageLocalization.getComposedMessage("unexpected.end.of.file"));
                if (tokeniser.getTokenType() == PRTokeniser.TK_END_DIC)
                    break;
                if (tokeniser.getTokenType() != PRTokeniser.TK_NAME)
                    throw new IOException(MessageLocalization.getComposedMessage("dictionary.key.is.not.a.name"));
                PdfName name = new PdfName(tokeniser.getStringValue(), false);
                PdfObject obj = readPRObject();
                int type = obj.type();
                if (-type == PRTokeniser.TK_END_DIC)
                    throw new IOException(MessageLocalization.getComposedMessage("unexpected.gt.gt"));
                if (-type == PRTokeniser.TK_END_ARRAY)
                    throw new IOException(MessageLocalization.getComposedMessage("unexpected.close.bracket"));
                dic.put(name, obj);
        }
        return dic;
    }
    
    /**
     * Reads an array. The tokeniser must be positioned past the "[" token.
     * @return an array
     * @throws IOException on error
     */    
    public PdfArray readArray() throws IOException {
        PdfArray array = new PdfArray();
        while (true) {
            PdfObject obj = readPRObject();
            int type = obj.type();
            if (-type == PRTokeniser.TK_END_ARRAY)
                break;
            if (-type == PRTokeniser.TK_END_DIC)
                throw new IOException(MessageLocalization.getComposedMessage("unexpected.gt.gt"));
            array.add(obj);
        }
        return array;
    }
    
    /**
     * Reads a pdf object.
     * @return the pdf object
     * @throws IOException on error
     */    
    public PdfObject readPRObject() throws IOException {
        if (!nextValidToken())
            return null;
        int type = tokeniser.getTokenType();
        switch (type) {
            case PRTokeniser.TK_START_DIC: {
                PdfDictionary dic = readDictionary();
                return dic;
            }
            case PRTokeniser.TK_START_ARRAY:
                return readArray();
            case PRTokeniser.TK_STRING:
                PdfString str = new PdfString(tokeniser.getStringValue(), null).setHexWriting(tokeniser.isHexString());
                return str;
            case PRTokeniser.TK_NAME:
                return new PdfName(tokeniser.getStringValue(), false);
            case PRTokeniser.TK_NUMBER:
                return new PdfNumber(tokeniser.getStringValue());
            case PRTokeniser.TK_OTHER:
                return new PdfLiteral(COMMAND_TYPE, tokeniser.getStringValue());
            default:
                return new PdfLiteral(-type, tokeniser.getStringValue());
        }
    }
    
    /**
     * Reads the next token skipping over the comments.
     * @return <CODE>true</CODE> if a token was read, <CODE>false</CODE> if the end of content was reached
     * @throws IOException on error
     */    
    public boolean nextValidToken() throws IOException {
        while (tokeniser.nextToken()) {
            if (tokeniser.getTokenType() == PRTokeniser.TK_COMMENT)
                continue;
            return true;
        }
        return false;
    }
}






























Active mutators

INCREMENTS_MUTATOR
VOID_METHOD_CALL_MUTATOR
RETURN_VALS_MUTATOR
MATH_MUTATOR
NEGATE_CONDITIONALS_MUTATOR
INVERT_NEGS_MUTATOR
CONDITIONALS_BOUNDARY_MUTATOR

Tests examined

Report generated by PIT 1.4.2

1		/*
2		* $Id: PdfContentParser.java 4066 2009-09-19 12:44:47Z psoares33 $
3		*
4		* Copyright 2005 by Paulo Soares.
5		*
6		* The contents of this file are subject to the Mozilla Public License Version 1.1
7		* (the "License"); you may not use this file except in compliance with the License.
8		* You may obtain a copy of the License at http://www.mozilla.org/MPL/
9		*
10		* Software distributed under the License is distributed on an "AS IS" basis,
11		* WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
12		* for the specific language governing rights and limitations under the License.
13		*
14		* The Original Code is 'iText, a free JAVA-PDF library'.
15		*
16		* The Initial Developer of the Original Code is Bruno Lowagie. Portions created by
17		* the Initial Developer are Copyright (C) 1999, 2000, 2001, 2002 by Bruno Lowagie.
18		* All Rights Reserved.
19		* Co-Developer of the code is Paulo Soares. Portions created by the Co-Developer
20		* are Copyright (C) 2000, 2001, 2002 by Paulo Soares. All Rights Reserved.
21		*
22		* Contributor(s): all the names of the contributors are added in the source code
23		* where applicable.
24		*
25		* Alternatively, the contents of this file may be used under the terms of the
26		* LGPL license (the "GNU LIBRARY GENERAL PUBLIC LICENSE"), in which case the
27		* provisions of LGPL are applicable instead of those above. If you wish to
28		* allow use of your version of this file only under the terms of the LGPL
29		* License and not to allow others to use your version of this file under
30		* the MPL, indicate your decision by deleting the provisions above and
31		* replace them with the notice and other provisions required by the LGPL.
32		* If you do not delete the provisions above, a recipient may use your version
33		* of this file under either the MPL or the GNU LIBRARY GENERAL PUBLIC LICENSE.
34		*
35		* This library is free software; you can redistribute it and/or modify it
36		* under the terms of the MPL as stated above or under the terms of the GNU
37		* Library General Public License as published by the Free Software Foundation;
38		* either version 2 of the License, or any later version.
39		*
40		* This library is distributed in the hope that it will be useful, but WITHOUT
41		* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
42		* FOR A PARTICULAR PURPOSE. See the GNU Library general Public License for more
43		* details.
44		*
45		* If you didn't download this code from the following link, you should check if
46		* you aren't using an obsolete version:
47		* http://www.lowagie.com/iText/
48		*/
49
50		package com.lowagie.text.pdf;
51
52		import java.io.IOException;
53		import java.util.ArrayList;
54		import java.util.List;
55
56		import com.lowagie.text.error_messages.MessageLocalization;
57		/**
58		* Parses the page or template content.
59		* @author Paulo Soares (psoares@consiste.pt)
60		*/
61		public class PdfContentParser {
62
63		/**
64		* Commands have this type.
65		*/
66		public static final int COMMAND_TYPE = 200;
67		/**
68		* Holds value of property tokeniser.
69		*/
70		private PRTokeniser tokeniser;
71
72		/**
73		* Creates a new instance of PdfContentParser
74		* @param tokeniser the tokeniser with the content
75		*/
76		public PdfContentParser(PRTokeniser tokeniser) {
77		this.tokeniser = tokeniser;
78		}
79
80		/**
81		* Parses a single command from the content. Each command is output as an array of arguments
82		* having the command itself as the last element. The returned array will be empty if the
83		* end of content was reached.
84		* @param ls an <CODE>ArrayList</CODE> to use. It will be cleared before using. If it's
85		* <CODE>null</CODE> will create a new <CODE>ArrayList</CODE>
86		* @return the same <CODE>ArrayList</CODE> given as argument or a new one
87		* @throws IOException on error
88		*/
89		public List<PdfObject> parse(List<PdfObject> ls) throws IOException {
90	1 1. parse : negated conditional → NO_COVERAGE	if (ls == null) {
91		ls = new ArrayList<>();
92		} else {
93	1 1. parse : removed call to java/util/List::clear → NO_COVERAGE	ls.clear();
94		}
95		PdfObject ob;
96	1 1. parse : negated conditional → NO_COVERAGE	while ((ob = readPRObject()) != null) {
97		ls.add(ob);
98	1 1. parse : negated conditional → NO_COVERAGE	if (ob.type() == COMMAND_TYPE) {
99		break;
100		}
101		}
102	1 1. parse : mutated return of Object value for com/lowagie/text/pdf/PdfContentParser::parse to ( if (x != null) null else throw new RuntimeException ) → NO_COVERAGE	return ls;
103		}
104
105		/**
106		* Gets the tokeniser.
107		* @return the tokeniser.
108		*/
109		public PRTokeniser getTokeniser() {
110		return this.tokeniser;
111		}
112
113		/**
114		* Sets the tokeniser.
115		* @param tokeniser the tokeniser
116		*/
117		public void setTokeniser(PRTokeniser tokeniser) {
118		this.tokeniser = tokeniser;
119		}
120
121		/**
122		* Reads a dictionary. The tokeniser must be positioned past the "<<" token.
123		* @return the dictionary
124		* @throws IOException on error
125		*/
126		public PdfDictionary readDictionary() throws IOException {
127		PdfDictionary dic = new PdfDictionary();
128		while (true) {
129	1 1. readDictionary : negated conditional → NO_COVERAGE	if (!nextValidToken())
130		throw new IOException(MessageLocalization.getComposedMessage("unexpected.end.of.file"));
131	1 1. readDictionary : negated conditional → NO_COVERAGE	if (tokeniser.getTokenType() == PRTokeniser.TK_END_DIC)
132		break;
133	1 1. readDictionary : negated conditional → NO_COVERAGE	if (tokeniser.getTokenType() != PRTokeniser.TK_NAME)
134		throw new IOException(MessageLocalization.getComposedMessage("dictionary.key.is.not.a.name"));
135		PdfName name = new PdfName(tokeniser.getStringValue(), false);
136		PdfObject obj = readPRObject();
137		int type = obj.type();
138	2 1. readDictionary : removed negation → NO_COVERAGE 2. readDictionary : negated conditional → NO_COVERAGE	if (-type == PRTokeniser.TK_END_DIC)
139		throw new IOException(MessageLocalization.getComposedMessage("unexpected.gt.gt"));
140	2 1. readDictionary : removed negation → NO_COVERAGE 2. readDictionary : negated conditional → NO_COVERAGE	if (-type == PRTokeniser.TK_END_ARRAY)
141		throw new IOException(MessageLocalization.getComposedMessage("unexpected.close.bracket"));
142	1 1. readDictionary : removed call to com/lowagie/text/pdf/PdfDictionary::put → NO_COVERAGE	dic.put(name, obj);
143		}
144	1 1. readDictionary : mutated return of Object value for com/lowagie/text/pdf/PdfContentParser::readDictionary to ( if (x != null) null else throw new RuntimeException ) → NO_COVERAGE	return dic;
145		}
146
147		/**
148		* Reads an array. The tokeniser must be positioned past the "[" token.
149		* @return an array
150		* @throws IOException on error
151		*/
152		public PdfArray readArray() throws IOException {
153		PdfArray array = new PdfArray();
154		while (true) {
155		PdfObject obj = readPRObject();
156		int type = obj.type();
157	2 1. readArray : removed negation → NO_COVERAGE 2. readArray : negated conditional → NO_COVERAGE	if (-type == PRTokeniser.TK_END_ARRAY)
158		break;
159	2 1. readArray : removed negation → NO_COVERAGE 2. readArray : negated conditional → NO_COVERAGE	if (-type == PRTokeniser.TK_END_DIC)
160		throw new IOException(MessageLocalization.getComposedMessage("unexpected.gt.gt"));
161		array.add(obj);
162		}
163	1 1. readArray : mutated return of Object value for com/lowagie/text/pdf/PdfContentParser::readArray to ( if (x != null) null else throw new RuntimeException ) → NO_COVERAGE	return array;
164		}
165
166		/**
167		* Reads a pdf object.
168		* @return the pdf object
169		* @throws IOException on error
170		*/
171		public PdfObject readPRObject() throws IOException {
172	1 1. readPRObject : negated conditional → NO_COVERAGE	if (!nextValidToken())
173	1 1. readPRObject : mutated return of Object value for com/lowagie/text/pdf/PdfContentParser::readPRObject to ( if (x != null) null else throw new RuntimeException ) → NO_COVERAGE	return null;
174		int type = tokeniser.getTokenType();
175		switch (type) {
176		case PRTokeniser.TK_START_DIC: {
177		PdfDictionary dic = readDictionary();
178	1 1. readPRObject : mutated return of Object value for com/lowagie/text/pdf/PdfContentParser::readPRObject to ( if (x != null) null else throw new RuntimeException ) → NO_COVERAGE	return dic;
179		}
180		case PRTokeniser.TK_START_ARRAY:
181	1 1. readPRObject : mutated return of Object value for com/lowagie/text/pdf/PdfContentParser::readPRObject to ( if (x != null) null else throw new RuntimeException ) → NO_COVERAGE	return readArray();
182		case PRTokeniser.TK_STRING:
183		PdfString str = new PdfString(tokeniser.getStringValue(), null).setHexWriting(tokeniser.isHexString());
184	1 1. readPRObject : mutated return of Object value for com/lowagie/text/pdf/PdfContentParser::readPRObject to ( if (x != null) null else throw new RuntimeException ) → NO_COVERAGE	return str;
185		case PRTokeniser.TK_NAME:
186	1 1. readPRObject : mutated return of Object value for com/lowagie/text/pdf/PdfContentParser::readPRObject to ( if (x != null) null else throw new RuntimeException ) → NO_COVERAGE	return new PdfName(tokeniser.getStringValue(), false);
187		case PRTokeniser.TK_NUMBER:
188	1 1. readPRObject : mutated return of Object value for com/lowagie/text/pdf/PdfContentParser::readPRObject to ( if (x != null) null else throw new RuntimeException ) → NO_COVERAGE	return new PdfNumber(tokeniser.getStringValue());
189		case PRTokeniser.TK_OTHER:
190	1 1. readPRObject : mutated return of Object value for com/lowagie/text/pdf/PdfContentParser::readPRObject to ( if (x != null) null else throw new RuntimeException ) → NO_COVERAGE	return new PdfLiteral(COMMAND_TYPE, tokeniser.getStringValue());
191		default:
192	2 1. readPRObject : removed negation → NO_COVERAGE 2. readPRObject : mutated return of Object value for com/lowagie/text/pdf/PdfContentParser::readPRObject to ( if (x != null) null else throw new RuntimeException ) → NO_COVERAGE	return new PdfLiteral(-type, tokeniser.getStringValue());
193		}
194		}
195
196		/**
197		* Reads the next token skipping over the comments.
198		* @return <CODE>true</CODE> if a token was read, <CODE>false</CODE> if the end of content was reached
199		* @throws IOException on error
200		*/
201		public boolean nextValidToken() throws IOException {
202	1 1. nextValidToken : negated conditional → NO_COVERAGE	while (tokeniser.nextToken()) {
203	1 1. nextValidToken : negated conditional → NO_COVERAGE	if (tokeniser.getTokenType() == PRTokeniser.TK_COMMENT)
204		continue;
205	1 1. nextValidToken : replaced return of integer sized value with (x == 0 ? 1 : 0) → NO_COVERAGE	return true;
206		}
207	1 1. nextValidToken : replaced return of integer sized value with (x == 0 ? 1 : 0) → NO_COVERAGE	return false;
208		}
209		}
		Mutations
90		1.1 Location : parse Killed by : none negated conditional → NO_COVERAGE
93		1.1 Location : parse Killed by : none removed call to java/util/List::clear → NO_COVERAGE
96		1.1 Location : parse Killed by : none negated conditional → NO_COVERAGE
98		1.1 Location : parse Killed by : none negated conditional → NO_COVERAGE
102		1.1 Location : parse Killed by : none mutated return of Object value for com/lowagie/text/pdf/PdfContentParser::parse to ( if (x != null) null else throw new RuntimeException ) → NO_COVERAGE
129		1.1 Location : readDictionary Killed by : none negated conditional → NO_COVERAGE
131		1.1 Location : readDictionary Killed by : none negated conditional → NO_COVERAGE
133		1.1 Location : readDictionary Killed by : none negated conditional → NO_COVERAGE
138		1.1 Location : readDictionary Killed by : none removed negation → NO_COVERAGE 2.2 Location : readDictionary Killed by : none negated conditional → NO_COVERAGE
140		1.1 Location : readDictionary Killed by : none removed negation → NO_COVERAGE 2.2 Location : readDictionary Killed by : none negated conditional → NO_COVERAGE
142		1.1 Location : readDictionary Killed by : none removed call to com/lowagie/text/pdf/PdfDictionary::put → NO_COVERAGE
144		1.1 Location : readDictionary Killed by : none mutated return of Object value for com/lowagie/text/pdf/PdfContentParser::readDictionary to ( if (x != null) null else throw new RuntimeException ) → NO_COVERAGE
157		1.1 Location : readArray Killed by : none removed negation → NO_COVERAGE 2.2 Location : readArray Killed by : none negated conditional → NO_COVERAGE
159		1.1 Location : readArray Killed by : none removed negation → NO_COVERAGE 2.2 Location : readArray Killed by : none negated conditional → NO_COVERAGE
163		1.1 Location : readArray Killed by : none mutated return of Object value for com/lowagie/text/pdf/PdfContentParser::readArray to ( if (x != null) null else throw new RuntimeException ) → NO_COVERAGE
172		1.1 Location : readPRObject Killed by : none negated conditional → NO_COVERAGE
173		1.1 Location : readPRObject Killed by : none mutated return of Object value for com/lowagie/text/pdf/PdfContentParser::readPRObject to ( if (x != null) null else throw new RuntimeException ) → NO_COVERAGE
178		1.1 Location : readPRObject Killed by : none mutated return of Object value for com/lowagie/text/pdf/PdfContentParser::readPRObject to ( if (x != null) null else throw new RuntimeException ) → NO_COVERAGE
181		1.1 Location : readPRObject Killed by : none mutated return of Object value for com/lowagie/text/pdf/PdfContentParser::readPRObject to ( if (x != null) null else throw new RuntimeException ) → NO_COVERAGE
184		1.1 Location : readPRObject Killed by : none mutated return of Object value for com/lowagie/text/pdf/PdfContentParser::readPRObject to ( if (x != null) null else throw new RuntimeException ) → NO_COVERAGE
186		1.1 Location : readPRObject Killed by : none mutated return of Object value for com/lowagie/text/pdf/PdfContentParser::readPRObject to ( if (x != null) null else throw new RuntimeException ) → NO_COVERAGE
188		1.1 Location : readPRObject Killed by : none mutated return of Object value for com/lowagie/text/pdf/PdfContentParser::readPRObject to ( if (x != null) null else throw new RuntimeException ) → NO_COVERAGE
190		1.1 Location : readPRObject Killed by : none mutated return of Object value for com/lowagie/text/pdf/PdfContentParser::readPRObject to ( if (x != null) null else throw new RuntimeException ) → NO_COVERAGE
192		1.1 Location : readPRObject Killed by : none removed negation → NO_COVERAGE 2.2 Location : readPRObject Killed by : none mutated return of Object value for com/lowagie/text/pdf/PdfContentParser::readPRObject to ( if (x != null) null else throw new RuntimeException ) → NO_COVERAGE
202		1.1 Location : nextValidToken Killed by : none negated conditional → NO_COVERAGE
203		1.1 Location : nextValidToken Killed by : none negated conditional → NO_COVERAGE
205		1.1 Location : nextValidToken Killed by : none replaced return of integer sized value with (x == 0 ? 1 : 0) → NO_COVERAGE
207		1.1 Location : nextValidToken Killed by : none replaced return of integer sized value with (x == 0 ? 1 : 0) → NO_COVERAGE

PdfContentParser.java

Mutations

Active mutators

Tests examined