- Specifies ICU tokenization and transformation rules
- for tokens that are used in Pazpar2's relevance ranking.
- The 'id' attribute is currently not used, and the 'locale'
- attribute must be set to one of the locale strings
+ Specifies a named ICU rule set. The icu_chain element must include
+ attribute 'id' which specifies the identifier (name) for the ICU
+ rule set.
+ Pazpar2 uses the particular rule sets for particular purposes.
+ Rule set 'relevance' is used to normalize
+ terms for relevance ranking. Rule set 'sort' is used to
+ normalize terms for sorting. Rule set 'mergekey' is used to
+ normalize terms for making a mergekey and, finally, 'facet'
+ is used to normalize facet terms (AKA termlists).
+ </para>
+ <para>
+ The icu_chain element must also include a 'locale'
+ attribute which must be set to one of the locale strings