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Script to replace a link based on filename

Explorer ,
Aug 08, 2023 Aug 08, 2023

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I've got a some images that have had numbers added to the ends of the filenames. I'd like to relink them back to the original, un-numbered file.

 

So,

myImage-1.jpg relinks to myImage.jpg

myImage-2.jpg relinks to myImage.jpg …

 

I wrote a script to run through all the links in the document, then use grep to see if an un-numbered version of that file exists for relinking, but I have to wonder: is there some quicker/better way to target individual links without running through the entire list of links to find them?

 

I thought to try

app.activeDocument.links.item(/myImage-\d+.jpg/)

but that doesn't work.

 

Thanks for any advice!

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correct answers 1 Correct answer

People's Champ , Aug 08, 2023 Aug 08, 2023

You cannot use RegExp there. You need the exact name:

var link = app.activeDocuments.itemByName("myImage-1.jpg");

if(link.isValid) lk.relink(new File("/Some/location/to/myImage.jpg");

 

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People's Champ ,
Aug 08, 2023 Aug 08, 2023

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You cannot use RegExp there. You need the exact name:

var link = app.activeDocuments.itemByName("myImage-1.jpg");

if(link.isValid) lk.relink(new File("/Some/location/to/myImage.jpg");

 

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People's Champ ,
Aug 08, 2023 Aug 08, 2023

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If you want something more "dynamic", you could loop through links and look at if their nalme matches a certain string with your regexp:

 

function main(){
    var doc = app.documents.everyItem().getElements();
    var n = doc.length;
    if(!n){
        alert("You need a document");
        return;
    }
    doc = doc[0];
    var lks = doc.links.everyItem().getElements(), lk;
    n = lks.length;
    while(n--){
        lk = lks[n];
        var numberedFile = File(lk.filePath);
        var newFolder = numberedFile.parent;
        var linkName = lk.name;
        var newLinkName = linkName.replace(/-\d+\.jpg$/, ".jpg");
        var newLinkFile = File(newFolder+"/"+newLinkName);
        if(/myImage-\d+\.jpg/.test(linkName) && newLinkFile.exists) lk.relink(newLinkFile); 
    }
}
var u;
app.doScript("main();", u, u, UndoModes.ENTIRE_SCRIPT, "Relink");

 

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Explorer ,
Aug 09, 2023 Aug 09, 2023

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Thanks! That's pretty much what I've been doing. I was just curious if there's a more efficient way to do it.

Actually, I've never used .test() before, so I'll look at that. Thanks again!

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Community Expert ,
Aug 08, 2023 Aug 08, 2023

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Out of curiosity, @dona56558947, is your script running slowly? It is common to loop over all the <objects> in a document and mostly doesn't cause a performance issue.

 

If it is too slow in the case of your document, you could try making an array of strings using app.activeDocument.links.everyItem().name and looping over that, then get the link(s) you want by using the loops index: app.activeDocument.links.item(i). I doubt that it would speed things up much, but it might.

- Mark

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Explorer ,
Aug 09, 2023 Aug 09, 2023

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It's noticeably slower than a similar script I use to replace links with known names, but it still takes only a moment. I was just curious if there's a more efficient way to do it. Thanks!

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