Use XQuery 3.1's map function to pass and access the various column label indices

[wlpotter]

These are currently created separately and then bundled as a sequence of all indices to be passed to the sub-modules. Each sub-module of csv2srophe has to debundle these by using something like $indices/self::headword. This is both cumbersome and tedious.

Instead, try a map with keys that are the index type and values the index itself, e.g.

let $index := {'headwords': $headwordsIndex, 'names': $namesIndex, ...}

Then, instead of unzipping the indices, a given index can simply be accessed by, e.g., $index('headwords')

[wlpotter]

Might be worthwhile, might not be