How to write specific symbols to Docx file using docx4j - java

I have specific logical symbols like ⇒,∨,∧,¬ and I want to write text with these symbols to docx document. With short symbols ∨,∧,¬ all fine, but symbol ⇒ overlaps with next character like
but it should look like
My code looks like
MainDocumentPart mdp = wordMLPackage.getMainDocumentPart();
P p = factory.createP();
R run = factory.createR();
p.getContent().add(run);
Text text = factory.createText();
text.setValue("((q⇒p)∧q)⇒p");
run.getContent().add(text);
mdp.addObject(p);
How to correct writing long symbols like ⇒?

You can use docx4j code generation to get what you want.
Create a document in Word which looks how you want it, then save as docx.
To generate code based on that docx, do one of the following:
upload it to http://webapp.docx4java.org/OnlineDemo/PartsList.html
or 2. install/use our Word AddIn; get it at http://www.docx4java.org/forums/docx4jhelper-addin-f30/docx4j-helper-addin-v1-final-available-t2253.html
If you are still having problems, post the XML you created in Word, or the code you generated following the above steps.

Related

Jsoup HtmlToPlainText function adding extra new line

If the text is already plain text and passed to the function new HtmlToPlainText().getPlainText() then the new line character is getting added to the result text.
It looks like Jsoup is doing some formatting and adding a line break.
HtmlToPlainText htmlToPlainText = new HtmlToPlainText();
htmlToPlainText.getPlainText(Jsoup.parse(inputString));
I tried outputSettings.prettyPrint(false); but it is not helping.
Input text can be HTML or plain text.
I want the text to be returned as it is(no extra new line) if it is already plain text.
Input: This is the subject for test cnirnv cniornvo cojrpov nmcofrjpv mcprfjv mpcjfpv pvckfpv jvpfkvp cnirv
Output: This is the subject for test cnirnv cniornvo cojrpov nmcofrjpv mcprfjv mpcjfpv \npvckfpv jvpfkvp cnirv.
A new line character is added after mpcjfpv
We can do string replacement but I am looking for a way to do it as part of the library itself.
HtmlToPlainText resides in package org.jsoup.examples, which is not included in the library jar file on Maven Central. In other words, this class is not part of the jsoup API and is only meant for demonstration purposes.
If you want to output the plaintext of a parsed document, try something like this instead:
Document doc = Jsoup.parse("This is the subject for test cnirnv cniornvo cojrpov nmcofrjpv mcprfjv mpcjfpv pvckfpv jvpfkvp cnirv");
System.out.println(doc.text());

Replacing text in XWPFParagraph without changing format of the docx file

I am developing font converter app which will convert Unicode font text to Krutidev/Shree Lipi (Marathi/Hindi) font text. In the original docx file there are formatted words (i.e. Color, Font, size of the text, Hyperlinks..etc. ).
I want to keep format of the final docx same as the original docx after converting words from Unicode to another font.
PFA.
Here is my Code
try {
fileInputStream = new FileInputStream("StartDoc.docx");
document = new XWPFDocument(fileInputStream);
XWPFWordExtractor extractor = new XWPFWordExtractor(document);
List<XWPFParagraph> paragraph = document.getParagraphs();
Converter data = new Converter() ;
for(XWPFParagraph p :document.getParagraphs())
{
for(XWPFRun r :p.getRuns())
{
String string2 = r.getText(0);
data.uniToShree(string2);
r.setText(string2,0);
}
}
//Write the Document in file system
FileOutputStream out = new FileOutputStream(new File("Output.docx");
document.write(out);
out.close();
System.out.println("Output.docx written successully");
}
catch (IOException e) {
System.out.println("We had an error while reading the Word Doc");
}
Thank you for ask-an-answer.
I have worked using POI some years ago, but over excel-workbooks, but still I’ll try to help you reach the root cause of your error.
The Java compiler is smart enough to suggest good debugging information in itself!
A good first step to disambiguate the error is to not overwrite the exception message provided to you via the compiler complain.
Try printing the results of e.getLocalizedMessage()or e.getMessage() and see what you get.
Getting the stack trace using printStackTrace method is also useful oftentimes to pinpoint where your error lies!
Share your findings from the above method calls to further help you help debug the issue.
[EDIT 1:]
So it seems, you are able to process the file just right with respect to the font conversion of the data, but you are not able to reconstruct the formatting of the original data in the converted data file.
(thus, "We had an error while reading the Word Doc", is a lie getting printed ;) )
Now, there are 2 elements to a Word document:
Content
Structure or Schema
You are able to convert the data as you are working only on the content of your respective doc files.
In order to be able to retain the formatting of the contents, your solution needs to be aware of the formatting of the doc files as well and take care of that.
MS Word which defined the doc files and their extension (.docx) follows a particular set of schemas that define the rules of formatting. These schemas are defined in Microsoft's XML Namespace packages[1].
You can obtain the XML(HTML) format of the doc-file you want quite easily (see steps in [1] or code in link [2]) and even apply different schemas or possibly your own schema definitions based on the definitions provided by MS's namespaces, either programmatically, for which you need to get versed with XML, XSL and XSLT concepts (w3schools[3] is a good starting point) but this method is no less complex than writing your own version of MS-Word; or using MS-Word's inbuilt tools as shown in [1].
[1]. https://www.microsoftpressstore.com/articles/article.aspx?p=2231769&seqNum=4#:~:text=During%20conversion%2C%20Word%20tags%20the,you%20can%20an%20HTML%20file.
[2]. https://svn.apache.org/repos/asf/poi/trunk/src/scratchpad/testcases/org/apache/poi/hwpf/converter/TestWordToHtmlConverter.java
[3]. https://www.w3schools.com/xml/
My answer provides you with a cursory overview of how to achieve what you want to, but depending on your inclination and time availability, you may want to use your discretion before you decide to head onto one path than the other.
Hope it helps!

best aproach to check if xml is part of a pdf document in Java

I want to check if a pdf file contains a long string, which is a string of a full XML document.
I can open both files and extract the text already. i've done that with the following code:
File temp = File.createTempFile("temp-pdf", ".tmp");
OutputStream out = new FileOutputStream(temp);
out.write(Base64.decodeBase64(testObject.getPdfAsDoc().getContent()));
out.close();
PDDocument document = PDDocument.load(temp);
PDFTextStripper pdfStripper = new PDFTextStripper();
String pdfText = pdfStripper.getText(document);
Integer posS =pdfText.indexOf("<?xml version");
Integer posE = pdfText.lastIndexOf("</ServiceSpecificationSchema:serviceSpecification>")+"</ServiceSpecificationSchema:serviceSpecification>".length();
pdfText =pdfText.substring( posS,posE );
String xmlText = testObject.getXmlAsDoc().getContent();
Now i have the problem, that the lines of both documents don't match, a cause of formats like linebreaks from the pdf file.
Example lines of TXT output from XML file:
<?xml version="1.0" encoding="UTF-8"?><ServiceSpecificationSchema:serviceSpecification xmlns:xs=" ..... >
Example lines of TXT output from PDF file:
<?xml version="1.0" encoding="UTF-8"?><ServiceSpecificationSchema:serviceSpecification
xmlns:xs=" ..... >
Second, i have page numbers between the XML tags from the PDF. Do you know a good way to remove this lines?
</operations>
Page 51 of 52
</consumerInterface>
What is the best approach to check if the pdf contains an XML?
I've already tried to remove all linebreaks and whitespaces from the file and compare them. But if i do that, i cannot find a line with the difference.
It does not have to be a valid XML file at the end.
Just want to post my solution if others need it.
My code is a little to large, to post it here.
Basicly i extract the text from the pdf and remove strings like page x and headlines from it. After that i removed all whitespaces as pointed out above. Finally i compare character by character of the extracted string to inform my users where they have done things wrong in the text. This method works pretty well, even if the auther does not care about formatting and just copy and paste the whole xml document.

Add text in MS Word doc using apache POI

I have been trying to edit different types of documents using Apache POI. The script should handle both extensions .doc and .docx. I could successfully edit the .docx file using XWPF api and the required text was added at the end of the docx file.
For editing .doc files(which include header, footer and a few paragraphs), following script is used, which use HWPFDocument.
FileInputStream fis = new FileInputStream(args[0]);
POIFSFileSystem fs = new POIFSFileSystem(fis);
HWPFDocument doc = new HWPFDocument(fs);
Range range = doc.getRange();
CharacterRun run = range.insertAfter("FROM SEHWAGGG A FOUUURRRRRR");
run.setBold(true);
run.setItalic(true);
The script works fine with normal documents which does not have header and footer. But seems that the issue appears with complex documents. It insert text, but in between the paragraphs (and at the beginning using insertBefore()). There are no text replacements required, just have to put the text at the end of the document. I searched similar scripts but most of them handle text replacement.
How can I add the text at the end, after all paragraphs?
I've tested It with the following document:
At first (with your original code) it completely destroyed the document:
By changing the following line, the insert works fine for me:
// Old
Range range = doc.getEndnoteRange();
// New
Range range = doc.getEndnoteRange();
I'm afraid you are out of luck with HWPF with the current state of the project.
I created a custom HWPF library for one of our clients, but the changes are not public. The changes were huge, so you can't spend - say - a week and assume that things will be fixed. You might get away with the current public HWPF when only some text needs to be replaced without changing the string length ("abc" -> "123" or "a " -> "1234").

HWPFDocument / XWPFDocument New Lines

I am trying to pull data from microsoft-word and translate it to sql statement and inserting it an Oracle database.
When the data in ms-word contains a new line that is created by [Shift-Enter] and not just enter,
The text contains an icon that looks like a box with a question mark.
Where the ET is just standard new line using the enter key and the ST is new lines using the
Shift-Enter combination. So when generating the SQL and inserting it to oracle, oracle counts that not as a text, but as hex.
My question is, how to remove lines that is created by [shift-enter] to just a standard '\n'?
Thanks
Update
This is how i get the text information
POIFSFileSystem fs = new POIFSFileSystem(new FileInputStream(file));
HWPFDocument doc = new HWPFDocument(fs);
WordExtractor we = new WordExtractor(doc);
text = we.getText();
Update Answer:
This was a bug in poi-3.6. In poi-3.8 it shows as \r.
What you're almost certainly seeing are "fields" in the word document, which are special blocks of text such as links, macros etc
Option number one is to continue using WordExtractor, but call stripFields(String) on the resulting text before using it. That'll remove any of these fields from the text for you.
The other option is to use a different way of getting the text out. WordToTextConverter is part of Apache POI, and is more complex code that handles more of the format and should skip these for you (WordExtractor is pretty simple and low level). The other is to use Apache Tika, which provides a common way of extracting text from a number of file formats. That does have the proper code to deal with fields, and as an added bonus it'll be trivial for you to support .docx or .pdf when your requirements change!

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