Find Text

[tmdolphin]

Good Morning,

i have a question concerning Finding of Text within a Document for further Processing. I looked at the examples in the Docs. There the main purpose is, to replace text based on a Pattern.

What I need to do is, that i want to Search the Document based on a Pattern and at the specific point this pattern occurs, i need to do further processing, for example add a Picture at the place of a predefined Placeholder. My first implementation was, to simply loop the whole Document.

Is there a more comfortable Way to do this provided through the APIs?

best regards and Thanks

Rob

[tmdolphin]

I just noticed, that the Custom ReplacingCallback is ment to fit to the problem i described. Somehow i overread this possibility at a first glance…

[awais.hafeez]

Hi Robert,

Thanks for your inquiry. Yes, please implement IReplacingCallback interface to achieve this. In case you have further inquires or need any help, please let us know.

Best regards,

[tmdolphin]

Thanks Awais for your reply,

i tried the IReplacingCallback and played a little bit around. I now have a Question on this…

If i use a regular expression which i search for:

Pattern.compile("\<(NAME|AGE)>([.^]*.)");

I search for e.g. My Name. In a Document. I now sometimes get not the match, as it seems to be splitted in multiple runs in the Document. Is there a Chance to set as option to search over multiple Nodes, like i would use the Find/Replace Function in Word itself?

best regards and thanks

Rob

[awais.hafeez]

Hi Rob,

Thanks for your inquiry. Please try executing the following code:

static class ReplaceEvaluatorFindAndReplace implements IReplacingCallback {
<font color="RED"><b>public</b></font> <font color="RED"><b>int</b></font> replacing<font color="BLUE"><b>(</b></font>ReplacingArgs e<font color="BLUE"><b>)</b></font> <font color="RED"><b>throws</b></font> Exception <font color="BLUE"><b>{</b></font>
    Node currentNode <font color="BLUE">=</font> e<font color="BLUE"><b>.</b></font>getMatchNode<font color="BLUE"><b>(</b></font><font color="BLUE"><b>)</b></font><font color="BLUE"><b>;</b></font>

    <font color="GREEN"><i>// The first (and may be the only) run can contain text before the match,

        // in this case it is necessary to split the run.

        if (e.getMatchOffset() > 0)

currentNode = SplitRun((Run) currentNode, e.getMatchOffset());
    <font color="GREEN"><i>// This array is used to store all nodes of the match for further removing.

        ArrayList runs = new ArrayList();
    <font color="GREEN"><i>// Find all runs that contain parts of the match string.

        int remainingLength = e.getMatch().group(0).length();

while (

(remainingLength > 0) &&

(currentNode != null) &&

(currentNode.getText().length() <= remainingLength)) {

runs.add(currentNode);

remainingLength = remainingLength - currentNode.getText().length();
        <font color="GREEN"><i>// Select the next Run node.

            // Have to loop because there could be other nodes such as BookmarkStart etc.

            do {

currentNode = currentNode.getNextSibling();

}

while ((currentNode != null) && (currentNode.getNodeType() != NodeType.RUN));

}
    <font color="GREEN"><i>// Split the last run that contains the match if there is any text left.

        if ((currentNode != null) && (remainingLength > 0)) {

SplitRun((Run) currentNode, remainingLength);

runs.add(currentNode);

}
    DocumentBuilder builder <font color="BLUE">=</font> <font color="RED"><b>new</b></font> DocumentBuilder<font color="BLUE"><b>(</b></font><font color="BLUE"><b>(</b></font>Document<font color="BLUE"><b>)</b></font> e<font color="BLUE"><b>.</b></font>getMatchNode<font color="BLUE"><b>(</b></font><font color="BLUE"><b>)</b></font><font color="BLUE"><b>.</b></font>getDocument<font color="BLUE"><b>(</b></font><font color="BLUE"><b>)</b></font><font color="BLUE"><b>)</b></font><font color="BLUE"><b>;</b></font>
    builder<font color="BLUE"><b>.</b></font>moveTo<font color="BLUE"><b>(</b></font><font color="BLUE"><b>(</b></font>Run<font color="BLUE"><b>)</b></font> runs<font color="BLUE"><b>.</b></font>get<font color="BLUE"><b>(</b></font>runs<font color="BLUE"><b>.</b></font>size<font color="BLUE"><b>(</b></font><font color="BLUE"><b>)</b></font> <font color="BLUE">-</font> <font color="BROWN">1</font><font color="BLUE"><b>)</b></font><font color="BLUE"><b>)</b></font><font color="BLUE"><b>;</b></font>
    builder<font color="BLUE"><b>.</b></font>write<font color="BLUE"><b>(</b></font><font color="PURPLE">"new value"</font><font color="BLUE"><b>)</b></font><font color="BLUE"><b>;</b></font>

    <font color="GREEN"><i>//Now remove all runs in the sequence.

        for (Run run : (Iterable<Run>) runs)

run.remove();
    <font color="RED"><b>return</b></font> ReplaceAction<font color="BLUE"><b>.</b></font>SKIP<font color="BLUE"><b>;</b></font>
<font color="BLUE"><b>}</b></font>

}
private static Run SplitRun(Run run, int position) throws Exception {

Run afterRun = (Run) run.deepClone(true);

afterRun.setText(run.getText().substring(position));

run.setText(run.getText().substring(0, position));

run.getParentNode().insertAfter(afterRun, run);

return afterRun;

}

I hope, this helps.

Best regards,