Can we reduce special logic in index.js even more?

[bsudekum]

The smaller this logic is, the more extensible this library will be. We should try to see if we can reduce this logic even further.

/cc @freenerd

[1ec5]

#23 muddies up the format even further: now the [optional] syntax can be replaced outright with a destination "template". For localization purposes, that PR should've created a separate set of messages for each towards case instead of that "template".

[freenerd]

When I implemented #23 my natural way to go would have actually been named [] variables. That seems complex though and ripe for weird string manipulation cases (e.g. setting and retaining spaces correctly). Instead, we could also remove the [] variables completely, by splitting every turn/modifier combination into a new object with several cases.

Now:

        "off ramp": {
            "defaultInstruction": "Take the ramp[ onto {way_name}]",
         }

New:

        "off ramp": {
            "defaultInstruction":  {
                 "default": "Take the ramp",
                 "name": "Take the ramp onto {way_name}",
                 "destination": "Take the ramp towards {destination_name}",
            }
         }