X-Git-Url: https://git.openstreetmap.org./nominatim.git/blobdiff_plain/d1e7b85cc5871a79d808634586d4425466bb2333..a690605a96191ed0ac230493bfb8ae3aa6504988:/docs/customize/Tokenizers.md?ds=sidebyside diff --git a/docs/customize/Tokenizers.md b/docs/customize/Tokenizers.md index ee51fec0..30be170e 100644 --- a/docs/customize/Tokenizers.md +++ b/docs/customize/Tokenizers.md @@ -15,48 +15,6 @@ they can be configured. 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= -``` - -This is in particular useful when the database runs on a different server. -See [Advanced installations](../admin/Advanced-Installations.md#using-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