chosen tokenizer is very limited as well. See the comments in each tokenizer
section.
-## Legacy tokenizer
-
-The legacy tokenizer implements the analysis algorithms of older Nominatim
-versions. It uses a special Postgresql module to normalize names and queries.
-This tokenizer is automatically installed and used when upgrading an older
-database. It should not be used for new installations anymore.
-
-### Compiling the PostgreSQL module
-
-The tokeinzer needs a special C module for PostgreSQL which is not compiled
-by default. If you need the legacy tokenizer, compile Nominatim as follows:
-
-```
-mkdir build
-cd build
-cmake -DBUILD_MODULE=on
-make
-```
-
-### Enabling the tokenizer
-
-To enable the tokenizer add the following line to your project configuration:
-
-```
-NOMINATIM_TOKENIZER=legacy
-```
-
-The Postgresql module for the tokenizer is available in the `module` directory
-and also installed with the remainder of the software under
-`lib/nominatim/module/nominatim.so`. You can specify a custom location for
-the module with
-
-```
-NOMINATIM_DATABASE_MODULE_PATH=<path to directory where nominatim.so resides>
-```
-
-This is in particular useful when the database runs on a different server.
-See [Advanced installations](../admin/Advanced-Installations.md#importing-nominatim-to-an-external-postgresql-database) for details.
-
-There are no other configuration options for the legacy tokenizer. All
-normalization functions are hard-coded.
-
## ICU tokenizer
The ICU tokenizer uses the [ICU library](http://site.icu-project.org/) to
##### split-name-list
-::: nominatim.tokenizer.sanitizers.split_name_list
- selection:
+::: nominatim_db.tokenizer.sanitizers.split_name_list
+ options:
members: False
- rendering:
heading_level: 6
+ docstring_section_style: spacy
##### strip-brace-terms
-::: nominatim.tokenizer.sanitizers.strip_brace_terms
- selection:
+::: nominatim_db.tokenizer.sanitizers.strip_brace_terms
+ options:
members: False
- rendering:
heading_level: 6
+ docstring_section_style: spacy
##### tag-analyzer-by-language
-::: nominatim.tokenizer.sanitizers.tag_analyzer_by_language
- selection:
+::: nominatim_db.tokenizer.sanitizers.tag_analyzer_by_language
+ options:
members: False
- rendering:
heading_level: 6
+ docstring_section_style: spacy
##### clean-housenumbers
-::: nominatim.tokenizer.sanitizers.clean_housenumbers
- selection:
+::: nominatim_db.tokenizer.sanitizers.clean_housenumbers
+ options:
members: False
- rendering:
heading_level: 6
+ docstring_section_style: spacy
##### clean-postcodes
-::: nominatim.tokenizer.sanitizers.clean_postcodes
- selection:
+::: nominatim_db.tokenizer.sanitizers.clean_postcodes
+ options:
members: False
- rendering:
heading_level: 6
+ docstring_section_style: spacy
##### clean-tiger-tags
-::: nominatim.tokenizer.sanitizers.clean_tiger_tags
- selection:
+::: nominatim_db.tokenizer.sanitizers.clean_tiger_tags
+ options:
members: False
- rendering:
heading_level: 6
+ docstring_section_style: spacy
#### delete-tags
-::: nominatim.tokenizer.sanitizers.delete_tags
- selection:
+::: nominatim_db.tokenizer.sanitizers.delete_tags
+ options:
+ members: False
+ heading_level: 6
+ docstring_section_style: spacy
+
+#### tag-japanese
+
+::: nominatim_db.tokenizer.sanitizers.tag_japanese
+ options:
members: False
- rendering:
heading_level: 6
+ docstring_section_style: spacy
#### Token Analysis
##### Postcode token analyzer
The analyzer `postcodes` is pupose-made to analyze postcodes. It supports
-a 'lookup' varaint of the token, which produces variants with optional
+a 'lookup' variant of the token, which produces variants with optional
spaces. Use together with the clean-postcodes sanitizer.
The analyzer cannot be customized.