JTidy issue with numbered list item









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I am facing a weird problem with Numbered List Item while generating pdf using IText. The serial number of the item list is not incremented by one when a <br/> tag is appended. consider the following example:



String withoutBrTag = "<html><head></head><body><p>this is order list</p>" +
" <br>" +
" <ol>" +
" <li>lafjad</li>" +
" <li>alsdfkjla </li>" +
" <li>asdflkjadslfkj</li>" +
" </ol>" +
" <br>" +
" <p>list item ended</p>&nbsp;"+
"</body></html>";

String wihBrTag = "<html><head></head><body><p>this is order list</p>" +
" <br>" +
" <ol>" +
" <br>" +
" <li>lafjad</li>" +
" <br>" +
" <li>alsdfkjla </li>" +
" <br>" +
" <li>asdflkjadslfkj</li>" +
" <br>" +
" </ol>" +
" <br>" +
" <p>list item ended</p>&nbsp;"+
"</body></html>";

Tidy tidy = new Tidy();
tidy.setXmlOut(true);
tidy.setQuiet(true);
tidy.setShowWarnings(false);

OutputStream outputStream = new FileOutputStream("test1.pdf");

ByteArrayInputStream inputStream = new ByteArrayInputStream(withBrTag.getBytes());

Document doc = tidy.parseDOM(inputStream, null);
inputStream.close();

ITextRenderer renderer = new ITextRenderer();
renderer.setDocument(doc, null);
renderer.layout();
renderer.createPDF(outputStream);


For the String withBrTag the output is:



this is order list

2. list item one
4. list item two
6. list item three

list item ended


Note the numbering - 2, 4, 6! Each <br/> tag is parsed as <li> node while performing tidy.parseDOM(inputStream, null). Therefore the numbering changes. TIDY parsed the html content in a wrong way that leads to the numbering issue.



But if I use the String withoutBrTag the generated output is as expected.



this is order list

1. list item one
2. list item two
3. list item three

list item ended


Can anyone explain why <br/> tag is considered as a </li> tag and how can this be solved?



NOTE 1: not only for <br/> tag the numbering changes but also for any of the html tag like - <p>, <i>, <hr/> tags. That means if any tag is added right before or after a <li> tag, it will affect the numbering.



NOTE 2: itextpdf-2.0.1 is used.










share|improve this question



















  • 2




    You'd better put a flyingsoucer tag, it's the main issue here.
    – Paulo Soares
    Nov 11 at 9:16






  • 1




    If I remember correctly, ol is specified to contain a sequence of li elements. Thus, your br must not be there. And broken input implies arbitrary output.
    – mkl
    Nov 11 at 12:34










  • @mkl I agree with you. <ol> should not contain html tag other than <li>. Since browser can render the html correctly why does tidy create arbitrary output?
    – Erfan Ahmed Emon
    Nov 12 at 3:17










  • If the html is incorrect, the output on some target programs might still be as desired (because those programs probably ignore the specific incorrectness in a very specific way). Nonetheless other target programs may fail in any manner when processing that html.
    – mkl
    Nov 12 at 9:31














up vote
1
down vote

favorite
1












I am facing a weird problem with Numbered List Item while generating pdf using IText. The serial number of the item list is not incremented by one when a <br/> tag is appended. consider the following example:



String withoutBrTag = "<html><head></head><body><p>this is order list</p>" +
" <br>" +
" <ol>" +
" <li>lafjad</li>" +
" <li>alsdfkjla </li>" +
" <li>asdflkjadslfkj</li>" +
" </ol>" +
" <br>" +
" <p>list item ended</p>&nbsp;"+
"</body></html>";

String wihBrTag = "<html><head></head><body><p>this is order list</p>" +
" <br>" +
" <ol>" +
" <br>" +
" <li>lafjad</li>" +
" <br>" +
" <li>alsdfkjla </li>" +
" <br>" +
" <li>asdflkjadslfkj</li>" +
" <br>" +
" </ol>" +
" <br>" +
" <p>list item ended</p>&nbsp;"+
"</body></html>";

Tidy tidy = new Tidy();
tidy.setXmlOut(true);
tidy.setQuiet(true);
tidy.setShowWarnings(false);

OutputStream outputStream = new FileOutputStream("test1.pdf");

ByteArrayInputStream inputStream = new ByteArrayInputStream(withBrTag.getBytes());

Document doc = tidy.parseDOM(inputStream, null);
inputStream.close();

ITextRenderer renderer = new ITextRenderer();
renderer.setDocument(doc, null);
renderer.layout();
renderer.createPDF(outputStream);


For the String withBrTag the output is:



this is order list

2. list item one
4. list item two
6. list item three

list item ended


Note the numbering - 2, 4, 6! Each <br/> tag is parsed as <li> node while performing tidy.parseDOM(inputStream, null). Therefore the numbering changes. TIDY parsed the html content in a wrong way that leads to the numbering issue.



But if I use the String withoutBrTag the generated output is as expected.



this is order list

1. list item one
2. list item two
3. list item three

list item ended


Can anyone explain why <br/> tag is considered as a </li> tag and how can this be solved?



NOTE 1: not only for <br/> tag the numbering changes but also for any of the html tag like - <p>, <i>, <hr/> tags. That means if any tag is added right before or after a <li> tag, it will affect the numbering.



NOTE 2: itextpdf-2.0.1 is used.










share|improve this question



















  • 2




    You'd better put a flyingsoucer tag, it's the main issue here.
    – Paulo Soares
    Nov 11 at 9:16






  • 1




    If I remember correctly, ol is specified to contain a sequence of li elements. Thus, your br must not be there. And broken input implies arbitrary output.
    – mkl
    Nov 11 at 12:34










  • @mkl I agree with you. <ol> should not contain html tag other than <li>. Since browser can render the html correctly why does tidy create arbitrary output?
    – Erfan Ahmed Emon
    Nov 12 at 3:17










  • If the html is incorrect, the output on some target programs might still be as desired (because those programs probably ignore the specific incorrectness in a very specific way). Nonetheless other target programs may fail in any manner when processing that html.
    – mkl
    Nov 12 at 9:31












up vote
1
down vote

favorite
1









up vote
1
down vote

favorite
1






1





I am facing a weird problem with Numbered List Item while generating pdf using IText. The serial number of the item list is not incremented by one when a <br/> tag is appended. consider the following example:



String withoutBrTag = "<html><head></head><body><p>this is order list</p>" +
" <br>" +
" <ol>" +
" <li>lafjad</li>" +
" <li>alsdfkjla </li>" +
" <li>asdflkjadslfkj</li>" +
" </ol>" +
" <br>" +
" <p>list item ended</p>&nbsp;"+
"</body></html>";

String wihBrTag = "<html><head></head><body><p>this is order list</p>" +
" <br>" +
" <ol>" +
" <br>" +
" <li>lafjad</li>" +
" <br>" +
" <li>alsdfkjla </li>" +
" <br>" +
" <li>asdflkjadslfkj</li>" +
" <br>" +
" </ol>" +
" <br>" +
" <p>list item ended</p>&nbsp;"+
"</body></html>";

Tidy tidy = new Tidy();
tidy.setXmlOut(true);
tidy.setQuiet(true);
tidy.setShowWarnings(false);

OutputStream outputStream = new FileOutputStream("test1.pdf");

ByteArrayInputStream inputStream = new ByteArrayInputStream(withBrTag.getBytes());

Document doc = tidy.parseDOM(inputStream, null);
inputStream.close();

ITextRenderer renderer = new ITextRenderer();
renderer.setDocument(doc, null);
renderer.layout();
renderer.createPDF(outputStream);


For the String withBrTag the output is:



this is order list

2. list item one
4. list item two
6. list item three

list item ended


Note the numbering - 2, 4, 6! Each <br/> tag is parsed as <li> node while performing tidy.parseDOM(inputStream, null). Therefore the numbering changes. TIDY parsed the html content in a wrong way that leads to the numbering issue.



But if I use the String withoutBrTag the generated output is as expected.



this is order list

1. list item one
2. list item two
3. list item three

list item ended


Can anyone explain why <br/> tag is considered as a </li> tag and how can this be solved?



NOTE 1: not only for <br/> tag the numbering changes but also for any of the html tag like - <p>, <i>, <hr/> tags. That means if any tag is added right before or after a <li> tag, it will affect the numbering.



NOTE 2: itextpdf-2.0.1 is used.










share|improve this question















I am facing a weird problem with Numbered List Item while generating pdf using IText. The serial number of the item list is not incremented by one when a <br/> tag is appended. consider the following example:



String withoutBrTag = "<html><head></head><body><p>this is order list</p>" +
" <br>" +
" <ol>" +
" <li>lafjad</li>" +
" <li>alsdfkjla </li>" +
" <li>asdflkjadslfkj</li>" +
" </ol>" +
" <br>" +
" <p>list item ended</p>&nbsp;"+
"</body></html>";

String wihBrTag = "<html><head></head><body><p>this is order list</p>" +
" <br>" +
" <ol>" +
" <br>" +
" <li>lafjad</li>" +
" <br>" +
" <li>alsdfkjla </li>" +
" <br>" +
" <li>asdflkjadslfkj</li>" +
" <br>" +
" </ol>" +
" <br>" +
" <p>list item ended</p>&nbsp;"+
"</body></html>";

Tidy tidy = new Tidy();
tidy.setXmlOut(true);
tidy.setQuiet(true);
tidy.setShowWarnings(false);

OutputStream outputStream = new FileOutputStream("test1.pdf");

ByteArrayInputStream inputStream = new ByteArrayInputStream(withBrTag.getBytes());

Document doc = tidy.parseDOM(inputStream, null);
inputStream.close();

ITextRenderer renderer = new ITextRenderer();
renderer.setDocument(doc, null);
renderer.layout();
renderer.createPDF(outputStream);


For the String withBrTag the output is:



this is order list

2. list item one
4. list item two
6. list item three

list item ended


Note the numbering - 2, 4, 6! Each <br/> tag is parsed as <li> node while performing tidy.parseDOM(inputStream, null). Therefore the numbering changes. TIDY parsed the html content in a wrong way that leads to the numbering issue.



But if I use the String withoutBrTag the generated output is as expected.



this is order list

1. list item one
2. list item two
3. list item three

list item ended


Can anyone explain why <br/> tag is considered as a </li> tag and how can this be solved?



NOTE 1: not only for <br/> tag the numbering changes but also for any of the html tag like - <p>, <i>, <hr/> tags. That means if any tag is added right before or after a <li> tag, it will affect the numbering.



NOTE 2: itextpdf-2.0.1 is used.







java itext pdf-generation jtidy numbered-list






share|improve this question















share|improve this question













share|improve this question




share|improve this question








edited Nov 11 at 5:10

























asked Nov 11 at 4:50









Erfan Ahmed Emon

86011326




86011326







  • 2




    You'd better put a flyingsoucer tag, it's the main issue here.
    – Paulo Soares
    Nov 11 at 9:16






  • 1




    If I remember correctly, ol is specified to contain a sequence of li elements. Thus, your br must not be there. And broken input implies arbitrary output.
    – mkl
    Nov 11 at 12:34










  • @mkl I agree with you. <ol> should not contain html tag other than <li>. Since browser can render the html correctly why does tidy create arbitrary output?
    – Erfan Ahmed Emon
    Nov 12 at 3:17










  • If the html is incorrect, the output on some target programs might still be as desired (because those programs probably ignore the specific incorrectness in a very specific way). Nonetheless other target programs may fail in any manner when processing that html.
    – mkl
    Nov 12 at 9:31












  • 2




    You'd better put a flyingsoucer tag, it's the main issue here.
    – Paulo Soares
    Nov 11 at 9:16






  • 1




    If I remember correctly, ol is specified to contain a sequence of li elements. Thus, your br must not be there. And broken input implies arbitrary output.
    – mkl
    Nov 11 at 12:34










  • @mkl I agree with you. <ol> should not contain html tag other than <li>. Since browser can render the html correctly why does tidy create arbitrary output?
    – Erfan Ahmed Emon
    Nov 12 at 3:17










  • If the html is incorrect, the output on some target programs might still be as desired (because those programs probably ignore the specific incorrectness in a very specific way). Nonetheless other target programs may fail in any manner when processing that html.
    – mkl
    Nov 12 at 9:31







2




2




You'd better put a flyingsoucer tag, it's the main issue here.
– Paulo Soares
Nov 11 at 9:16




You'd better put a flyingsoucer tag, it's the main issue here.
– Paulo Soares
Nov 11 at 9:16




1




1




If I remember correctly, ol is specified to contain a sequence of li elements. Thus, your br must not be there. And broken input implies arbitrary output.
– mkl
Nov 11 at 12:34




If I remember correctly, ol is specified to contain a sequence of li elements. Thus, your br must not be there. And broken input implies arbitrary output.
– mkl
Nov 11 at 12:34












@mkl I agree with you. <ol> should not contain html tag other than <li>. Since browser can render the html correctly why does tidy create arbitrary output?
– Erfan Ahmed Emon
Nov 12 at 3:17




@mkl I agree with you. <ol> should not contain html tag other than <li>. Since browser can render the html correctly why does tidy create arbitrary output?
– Erfan Ahmed Emon
Nov 12 at 3:17












If the html is incorrect, the output on some target programs might still be as desired (because those programs probably ignore the specific incorrectness in a very specific way). Nonetheless other target programs may fail in any manner when processing that html.
– mkl
Nov 12 at 9:31




If the html is incorrect, the output on some target programs might still be as desired (because those programs probably ignore the specific incorrectness in a very specific way). Nonetheless other target programs may fail in any manner when processing that html.
– mkl
Nov 12 at 9:31

















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