support custom normalization data

Description

Support custom normalization data, especially for the mappings/decompositions. This is useful for UTS !#46 (for IDNAbis), combining NFKC with case folding (new NFKC_Casefold property in Unicode 5.2) and other variations of "Unicode normalization except...".

Related to

  • #5072 add function for normalization + case folding

  • #7144 Support TR46 (IDNA Update)

  • #7202 Update StringPrep

Fixed

Assignee

Markus Scherer

Reporter

Markus Scherer

Components

Labels

None

Reviewer

None

Priority

major

Time Needed

Weeks

Fix versions