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add documentation for housenumber analyzer

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Sarah Hoffmann
2022-02-18 15:55:10 +01:00
parent 13ed184efd
commit b694a97edf
1 changed files with 13 additions and 4 deletions
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docs/customize/Tokenizers.md
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@@ -206,15 +206,16 @@ by a sanitizer (see for example the
The token-analysis section contains the list of configured analyzers. Each
analyzer must have an `id` parameter that uniquely identifies the analyzer.
The only exception is the default analyzer that is used when no special
analyzer was selected.
analyzer was selected. There is one special id '@housenumber'. If an analyzer
with that name is present, it is used for normalization of house numbers.
Different analyzer implementations may exist. To select the implementation,
the `analyzer` parameter must be set. Currently there is only one implementation
`generic` which is described in the following.
the `analyzer` parameter must be set. The different implementations are
described in the following.
##### Generic token analyzer
The generic analyzer is able to create variants from a list of given
The generic analyzer `generic` is able to create variants from a list of given
abbreviation and decomposition replacements and introduce spelling variations.
###### Variants
@@ -331,6 +332,14 @@ the mode by adding:
to the analyser configuration.
##### Housenumber token analyzer
The analyzer `housenumbers` is purpose-made to analyze house numbers. It
creates variants with optional spaces between numbers and letters. Thus,
house numbers of the form '3 a', '3A', '3-A' etc. are all considered equivalent.
The analyzer cannot be customized.
### Reconfiguration
Changing the configuration after the import is currently not possible, although