Sarah Hoffmann [Tue, 5 Oct 2021 15:18:10 +0000 (17:18 +0200)]
apply variants by languages
Adds a tagger for names by language so that the analyzer of that
language is used. Thus variants are now only applied to names
in the specific language and only tag name tags, no longer to
reference-like tags.
Sarah Hoffmann [Tue, 5 Oct 2021 12:10:32 +0000 (14:10 +0200)]
use analyser provided in the 'analyzer' property
Implements per-name choice of analyzer. If a non-default
analyzer is choosen, then the 'word' identifier is extended
with the name of the ana;yzer, so that we still have unique
items.
Sarah Hoffmann [Mon, 4 Oct 2021 16:31:58 +0000 (18:31 +0200)]
move parsing of token analysis config to analyzer
Adds a second callback for the analyzer which is responsible
for parsing the configuration rules and converting it to
whatever format necessary. This way, each analyzer implementation
can define its own configuration rules.
Sarah Hoffmann [Mon, 4 Oct 2021 15:34:30 +0000 (17:34 +0200)]
make token analyzers configurable modules
Adds a mandatory section 'analyzer' to the token-analysis entries
which define, which analyser to use. Currently there is exactly
one, generic, which implements the former ICUNameProcessor.
Sarah Hoffmann [Mon, 4 Oct 2021 14:40:28 +0000 (16:40 +0200)]
extend ICU config to accomodate multiple analysers
Adds parsing of multiple variant lists from the configuration.
Every entry except one must have a unique 'id' paramter to
distinguish the entries. The entry without id is considered
the default. Currently only the list without an id is used
for analysis.
Sarah Hoffmann [Thu, 30 Sep 2021 19:30:13 +0000 (21:30 +0200)]
introduce sanitizer step before token analysis
Sanatizer functions allow to transform name and address tags before
they are handed to the tokenizer. Theses transformations are visible
only for the tokenizer and thus only have an influence on the
search terms and address match terms for a place.
Currently two sanitizers are implemented which are responsible for
splitting names with multiple values and removing bracket additions.
Both was previously hard-coded in the tokenizer.
Sarah Hoffmann [Wed, 29 Sep 2021 15:37:04 +0000 (17:37 +0200)]
unify ICUNameProcessorRules and ICURuleLoader
There is no need for the additional layer of indirection that
the ICUNameProcessorRules class adds. The ICURuleLoader can
fill the database properties directly.
Sarah Hoffmann [Wed, 29 Sep 2021 09:54:14 +0000 (11:54 +0200)]
export more data for the tokenizer name preparation
Adds class, type, country and rank to the exported information
and removes the rather odd hack for countries. Whether a place
represents a country boundary can now be computed by the tokenizer.
Sarah Hoffmann [Mon, 27 Sep 2021 21:32:11 +0000 (23:32 +0200)]
adjust address levels for boundaries in Slovakia
Levels choosen according to OSM wiki. Mainly moves admin_level 6
to county level and admin_level 8 to city/town level. Higher
levels are adjusted accordingly.
Sarah Hoffmann [Thu, 23 Sep 2021 14:57:24 +0000 (16:57 +0200)]
icu tokenizer: switch to matching against partial names
When matching address parts from addr:* tags against place names,
the address names where so far converted to full names and compared
those to the place names. This can become problematic with the new
ICU tokenizer once we introduce creation of different variants
depending on the place name context. It wouldn't be clear which
variant to produce to get a match, so we would have to create all of
them. To work around this issue, switch to using the partial terms
for matching. This introduces a larger fuzziness between matches but
that shouldn't be a problem because matching is always geographically
restricted.
The search terms created for address parts have a different problem:
they are already created before we even know if they are going to be
used. This can lead to spurious entries in the word table, which slows
down searching. This problem can also be circumvented by using only
partial terms for the search terms. In terms of searching that means
that the address terms would not get the full-word boost, but given
that the case where an address part does not exist as an OSM object
should be the exception, this is likely acceptable.
Sarah Hoffmann [Wed, 22 Sep 2021 20:20:02 +0000 (22:20 +0200)]
move name matching into tokenizer module
Instead of requesting the match tokens from the tokenizer
when looking for parent streets/places and address parts,
hand in the saved tokens and ask if they match. This gives
the tokenizer more freedom to decide how name matching
should be done.
Sarah Hoffmann [Fri, 24 Sep 2021 15:37:31 +0000 (17:37 +0200)]
adjust address ranks for Spain
Adjusts levels for boundaries according to the list on
https://wiki.openstreetmap.org/wiki/Tag:boundary%3Dadministrative
* no admin_level 5, so drop that from addresses
* admin_level 6 has the province
* admin_level 7 has the county when it exists
Also reranks place=province so that it matches up with
admin_level 6 and introduces place=civil_parish which
is used as a place node for some admin_level=9 boundaries
in Galicia.
Sarah Hoffmann [Fri, 3 Sep 2021 16:16:12 +0000 (18:16 +0200)]
introduce generic YAML config loader
Adds a function to the Configuration class to load a YAML
file. This means that searching for the file is generalised
and works the same now for all configuration files. Changes
the search logic, so that it is always possible to have a
custom version of the configuration file in the project
directory.
Sarah Hoffmann [Thu, 2 Sep 2021 16:13:45 +0000 (18:13 +0200)]
reduce penalty for special searches by name
Additional penalty for special terms with operator None
should only go to near searches. To reduce the number
of produced searches, restrict the none operator to
appear only in conjunction with the name.