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Support UTS#18 2.2 Extended Grapheme Clusters in ICU regular expression

Description

\b options are not currently supported by ICU regular expression (except \b{w} by syntax \w).

1 2 3 4 \b{g} Zero-width match at a Unicode extended grapheme cluster boundary \b{w} Zero-width match at a Unicode word boundary. Note that this is different than \b alone, which corresponds to \w and \W. See Annex C: Compatibility Properties. \b{l} Zero-width match at a Unicode line break boundary \b{s} Zero-width match at a Unicode sentence boundary

Environment

Status

Assignee

Andy Heninger

Reporter

Yoshito Umaoka

Time Needed

Days

tracCreated

Jul 18, 2012, 5:32 PM

tracOwner

andy

tracProject

ICU4C

tracReporter

yoshito

tracStatus

accepted

tracWeeks

1

Components

Priority

medium