Feature request Tag2Link

[de_vries]

Disclaimer: If this is not the right place for feature requests for plug-ins, please point me to the right place.

In the Netherlands all buildings and addresses are imported from a official database (BAG). All buildings have their BAG-ID in the tag "ref:bag". I would like to have Tag2Link to provide a link, based on the "ref:bag" tag, to that object in the BagViewer. This is a website were you can view the official BAG database: ​https://bagviewer.kadaster.nl/

To achieve this I added the following code to the "tag2link_sources.xml" file:

    <!-- BAG - Buildings in The Neterlands --> 
     
    <src name="BAG">
       <rule>
            <condition k="ref:bag" />
            <link name="Open in BAG Viewer" href="https://bagviewer.kadaster.nl/lvbag/bag-viewer/index.html#?searchQuery=0%v%" />
        </rule>
    </src>

This code adds a "0" in font of the BAG-ID. Here is why:

• All BAG-ID's consist of 16 numbers
• Most BAG-ID's start with a 0
• Those leading zero's are striped from the BAG-ID when imported to OSM.
• The BagViewer doesn't work if you leave out the leading zero.

So my code works in most cases, but when there was no leading zero in the original BAG-ID, it doesn't work.

I have two questions:

• How to fix this code to ad just enough leading zero's to make the BAG-ID exactly 16 numbers long?
• Can this be added to the plugin?

Additional details:
ref:bag is used 10.000.000 times: ​https://taginfo.openstreetmap.org/keys/ref%3Abag
Example of a building without a leading zero in the BAG-ID:

• OSM: ​https://www.openstreetmap.org/way/297923406
• BAG: ​https://bagviewer.kadaster.nl/lvbag/bag-viewer/index.html#?searchQuery=1740100000017978

Example of a building with a leading zero in the BAG-ID:

• OSM: ​https://www.openstreetmap.org/way/265267429
• BAG: ​https://bagviewer.kadaster.nl/lvbag/bag-viewer/index.html#?searchQuery=0175100000003816