Experimental anki add-on which fills an expression into a given field of all notes in an Anki model.
Only use this add-on if you know exactly what you are doing! It may irreversibly damage your collection!
As per the Anki documentation, media references to fields in a template (such as [sound:{{Word}}]) are not officially supported, and will generally not play in mobile clients like AnkiDroid.
However, sometimes it's convenient to use a naming convention for media files based on the content of other fields. For example we might have a model with a field Expression, and we want to have a corresponding audio file using the naming convention {{Expression}}.mp3.
If our model is only used by three notes, with values for Expression ("Dog", "Cat", "Mouse"), and we have a field for the audio file called Audio, then it would not be much work to just manually write the following values to the Audio field ("[sound:Dog.mp3]","[sound:Cat.mp3]","[sound:Mouse.mp3]") which would allow us to include these sound files in our flash cards by simply including the line {{Audio}} in our card template.
However, if our model is used by hundreds or thousands of notes, this would be very laborious. It would be much more convenient to have a "replace all" feature which automatically renders a pattern like [sound:{{Expression}}.mp3] to the Audio field of all notes of a given model in our collection. This is exactly what this plugin does.
Note: before using this plugin, it is highly recommended that you sync with AnkiWeb, and also make a physical backup of your collection.anki2 file.
To use the plugin, simply copy the file replaceall.py to the addons folder in the Anki directory of your PC, restart Anki, and a new item will appear in the Tools menu called "Replace All". Choose the model, destination field (e.g. the Audio field in above example), and optionally a tag which you want to limit the replacement to, then finally enter an expression such as [sound:{{Expression}}.mp3] which will be rendered and added to the destination field for all matching notes upon pressing the "Replace All" button.