Script to set image caption from an attribute

[PhilB-RLB]

Hello,

let say that we have a note with a link to an image and that this note have the following Attribute :
#Caption="My Caption"

Is it possible to build a script that will take the #Caption value ("My Caption") to automatically print it as the image caption ?
I thing that this script should apply to the current active note and should be launched from a button accessible from the left menu.

Any idea to implement this ?

[PhilB-RLB]

Any idea ???

[DHMike57]

Mostly pinched from 'selection to title' which is on here somewhere.

api.addButtonToToolbar({
    title: 'title',
    icon: 'game',
    shortcut: 'alt+i',
    action: async function () {
        const curnote = await api.getActiveTabNote();
        await api.runOnBackend(async (noteId) => {
            const note = api.getNote(noteId);
            if(note.hasLabel('Caption'))
              note.title = note.getLabel("Caption").value;
            note.save();
        }, [ curnote.noteId]);    
     }
});

[PhilB-RLB]

Hello DHMike57,
thank you for this example. It works perfectly. Now, I've just to find a way to set the image caption instead of the note title.

[DHMike57]

It's the popular student strategy "write the answer that you know, instead of reading the question"!
How about this?

It sets/changes the caption on all images. The regex can be adjusted to only do the first image, or only to add captions where none exist, depending on usage preferences.

api.addButtonToToolbar({
    title: 'Caption',
    icon: 'game',
    shortcut: 'alt+i',
    action: async function () {
        const curnote = await api.getActiveTabNote();

        await api.runOnBackend(async (noteId) => {
            const note = api.getNote(noteId);
            if(note.hasLabel('Caption')){
                const content=note.getContent();
                const newcap="<figcaption>" + note.getLabel("Caption").value + "</figcaption></figure>";
                /* remove the 'g' in 'gm' below for first image only */
                const newcontent=content.replace(/(<figcaption>[\S\s]*?<\/figcaption>)*?<\/figure>/gm,newcap);
                /* this variant preserves an existing caption
                const newcontent=content.replace(/(?<!(<figcaption>[\S\s]*?<\/figcaption>))<\/figure>/gm,newcap);
                */
                /*
               api.log("---------------------"); 
               api.log(content + "->" + newcontent); 
               */
              note.setContent(newcontent);
            }
            note.save();
        }, [ curnote.noteId]);
    await api.waitUntilSynced();
    api.activateNote(curnote.noteId);
    }
});

[PhilB-RLB]

Excellent !!! Thank you very much for your help.