Search Requirements

Here's a quick summary of a discussion between Dave, Cédric and Gilbert.

We should make sure that our indices correspond to these requirements.

All-in-one Search

Represents the search box in RE3.

Don't depend on current bounding box (searching for bern while zoomed into Zürich would still return Bern (the city)), no quad_index related search)
Ranking is the same as in RE2
One difference to RE2: in RE2, we found matches only at start of words (prefix), now we support machtes inside of words(infix)
Minimal searching term is 2 letters (min_infix_len = 2)

Infix = 2
Depends on current bounding box (quadindex and geoanchor)
Always for ALL layers which are searchable for this topic
Mark results specially in the location section (as in RE2, wich orange background)
Ranking, especially against Swissnames tbd

This replaces the select-by-rectangle of RE2. It is in the Tools menu (no input box, but only result display)

Note that this is different than the feature search inside the all-in-one search.

Include layers that are queryable and added to the map
Depends on current bounding box (quadindex and geoanchor)
There's no need to search by term. We only need the geo search for this (we don't need to index details...), so there's no need for infix (only prefix for quadindex)

Of course, features on layers which are both queryable and searchable are to be treated as defined for searchable layers.