Bug 208117

Summary:	regex(3): implement equivalence classes
Product:	Base System	Reporter:	Delles <geodelles>
Component:	bin	Assignee:	Yuri Pankov <yuripv>
Status:	In Progress ---
Severity:	Affects Only Me	CC:	eadler, yuripv
Priority:	---
Version:	CURRENT
Hardware:	Any
OS:	Any

Description Delles 2016-03-18 09:45:38 UTC

% echo á | grep '[[=a=]]'
% echo ô | grep '[[=o=]]'
% 

On Linux to compare:

$ echo á | grep '[[=a=]]'
á
$ echo ô | grep '[[=o=]]'
ô
$

See the IEEE Std:

«9.3.5 RE Bracket Expression
...It consists of one or more expressions: collating elements, collating symbols, equivalence classes...»

http://pubs.opengroup.org/onlinepubs/009696899/basedefs/xbd_chap09.html

Comment 1 vali gholami 2017-12-17 07:13:08 UTC

MARKED AS SPAM