How to fix stack overrun issue?

[prakashc39562731]

Hi All,

I have got an alert for stack overrun while running InDesign script.

Below is my code.

var myDoc=app.activeDocument;          

var outputINTT=File("E:\\2017\\Tools\\branches\\PR225_Auto_Pagination\\working\\indesign-scripts\\typesetting\\SupportScripts\\pagenation\\INDD\\FullDocument.intt");

//var textFrame=app.selection[0];

var reflowFrameLabelName="MainFrame";

var mainFrame=getFrame(myDoc.pages[0],"MainFrame");

//myDoc.pages[0].place(outputINTT,[mainFrame.geometricBounds[0],mainFrame.geometricBounds[1]],undefined,false,true);                      

mainFrame.place(outputINTT,false);

CheckingOverSet(reflowFrameLabelName);

function getFrame(myPage,labelString)

{

    var myTextFrames = myPage.textFrames;

    for (var i = 0; i < myTextFrames.length; i++) {

        if (myTextFrames.label.match(labelString))

            return myTextFrames;

        }

    }      

function CheckingOverSet(reflowFrameLabelName) {

    var lastPage = app.activeDocument.pages.lastItem();

    var lastPageTextFrames = lastPage.textFrames;

    for (var tf = 0; tf < lastPageTextFrames.length; tf++) {

        if (lastPageTextFrames[tf].overflows == true) {

            var overSetFrame = lastPageTextFrames[tf];

            var masterPageName = lastPage.appliedMaster.name;

            overSetFrame.select();

            var newPage = app.activeDocument.pages.add();

            OverrideMasterItems();

            var reflowPageTextFrames = newPage.textFrames;

            if (reflowPageTextFrames.length > 0) {

                var reflowFrame = getFrame( newPage,reflowFrameLabelName);

                if (reflowFrame == null) {

                    alert("The master page " + masterPageName + " is not having the TextFrame name " + reflowFrameLabelName + ". Script can't reflow the content to the page...")

                } else if (reflowFrame != $.global.undefined) {

                    try {

                        overSetFrame.nextTextFrame = reflowFrame;

                        if (reflowFrame.overflows) {

                            CheckingOverSet(reflowFrameLabelName);

                        }

                    } catch (e) {

                        alert(e)

                    }

                }

            } else {

                alert("The master page " + masterPageName + " is not having TextFrames. Script can't reflow the content to the page...")

            }

        }

    }

}

function OverrideMasterItems() {

    var allItems = app.activeDocument.pages[app.activeDocument.pages.length - 1].appliedMaster.pageItems.everyItem().getElements();

    for (var i = 0; i < allItems.length; i++) {

        try {

            allItems.override(app.activeDocument.pages[app.activeDocument.pages.length - 1])

        } catch (e) {}

    }

}

Thanks,

Prakash.C

[Loic.Aigon]

Did you identify the specific portion of the code that throws that error ?

I would look at your loops carefully because it's generally a good source of troubles.

Plus what's a pity is that you try/catch errors without logging the possible errors. You should at the very least use this kind of pattern. That would help you debugging…

try {
     //something that could throw an error
}
catch(err){
     $.writeln (err.line+"//"+ err.message );
}

HTH

[Dirk Becker]

Stack overrun is usually caused by recursion - a function calling itself.

In your case that would be CheckingOverSet ...

[Peter Kahrel]

This is a classic. As Dirk mentioned, your CheckingOverset() is a recursive function. If the overset can't be resolved, your script keeps adding pages. The permanent overset state is usually caused by a large inline frame that doesn't fit the page or a long string that doesn't fit the measure. Long URLs are often a problem.

To cope with your problem, add a check: if the text frame on the previous page is empty, the frame is permanently overset and your script should stop. You could add a counter so that the script stops if you have e.g. 3 or 4 empty pages.

P.