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Troubleshooting find and replace with regular expressions

Aspose.Words Product Family
#1

Hi Aspose,

We are in the final phase of evaluating your product. Apart from many (great) working features, we are having a problem searching with regular expressions.

We are trying to find in our document the following text:

${Images|maxwidth=100|maxheight=100}
${Images|maxwidth=10|maxheight=90}

(basically the maxheight and maxwidth can vary).

We have developed a IReplacingCallback implementation and used the following code:

final ImageReplaceCallBack a = c.new ImageReplaceCallBack(fields);
result.getRange().replace(Pattern.compile("\\$\\{Images*\\}"), a, true);

But the callback is not being called. Notice that in the document, if we put ${Images}, the callback is called.
Thank you

#2

Hi Paulo,

Thanks for your inquiry. Could you please attach your input Word document here for testing? I will investigate the issue on my side and provide you more information.

#3

Here it goes

Thanks!

#4

Hi Tahir,

We really need help on this, we want to purchase a license during this week, but only after solving this problem.

Best Regards

#5

Hi Paulo,

Thanks for sharing the document. Please change the regular expression as follow in your application. Hope this helps you. Please let us know if you have any more queries.

doc.getRange().replace(Pattern.compile("\$\{Images*"),
new InsertDocumentAtReplaceHandler(), false);
#6

Hi Tahir,

That does not help, as the expression does not detects the rest of the text that I want to replace, i.e. it leaves the |maxwidth=10|maxheight=90} out of the replace.

Check attached file with the result.

Thanks,

#7

Hi Paulo,

Thanks for your inquiry. Please note that all text of the document is stored in Runs of text. The text (${Images|maxwidth=100|maxheight=100}) could be in one or multiple nodes of type Run.

Moreover, the Aspose.Words is quite different from the Microsoft Word’s Object Model in that it represents the document as a tree of objects more like an XML DOM tree. When you load a Word document into Aspose.Words, it builds its DOM and all document elements and formatting are simply loaded into memory. Please read the following articles for more information on DOM:
https://docs.aspose.com/words/java/aspose-words-document-object-model/
https://docs.aspose.com/words/java/logical-levels-of-nodes-in-a-document/

In your scenario, please use the approach to find the Run nodes which contain the matched text at following documentation link. Please check the class ReplaceEvaluatorFindAndHighlight.
https://docs.aspose.com/words/java/find-and-replace/

Hope this helps you. Please let us know if you have any more queries.

#8

Thanks, we used your suggestion and managed to solve the problem iterating the runs.

Kind Regards

#9

Hi Paulo,

Thanks for your feedback. Please feel free to ask if you have any question about Aspose.Words, we will be happy to help you.