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Collation folding

Description

Add a function to C, C++, and Java Collator that returns a folded string, which
is defined such that

someCollator.compare(a, b) == 0 IF AND ONLY IF someCollator.fold(a) is binary
equal to someCollator.fold(b).

A folded string doesn't say anything about ordering, just identity. Useful for
matching, as in regular expressions.

In implementation, we will favor the simplest string for the folding, e.g.
lowercase, no accents, etc.

Environment

Status

Assignee

Mark Davis

Reporter

TracBot

Labels

Time Needed

Days

tracCreated

Jun 09, 2003, 5:07 AM

tracOwner

mark

tracProject

ICU4C,ICU4J and ICU4JNI

tracReporter

mark.davis@63ab4e4d4e2312f9

tracStatus

accepted

tracWeeks

1

Components

Priority

assess