0000914: awk/gawk incompatibility: busybox includes POSIX interval expressions by default

Notes
(0001436) vapier 06-20-06 16:18	this is because gawk's default regular expression support includes all POSIX expressions except interval expressions busybox's regular expression support includes all POSIX expressions including internal expressions ... which means you need to escape the { if you read the SUSv3 standards, busybox's behavior is compliant: http://www.opengroup.org/onlinepubs/009695399/utilities/awk.html [^] http://www.opengroup.org/onlinepubs/009695399/utilities/awk.html#tag_04_06_13_04 [^] * Regular Expressions The awk utility shall make use of the extended regular expression notation (see the Base Definitions volume of IEEE Std 1003.1-2001, Section 9.4, Extended Regular Expressions) http://www.opengroup.org/onlinepubs/009695399/basedefs/xbd_chap09.html#tag_09_04 [^] http://www.opengroup.org/onlinepubs/009695399/basedefs/xbd_chap09.html#tag_09_04_03 [^] The asterisk, plus-sign, question-mark, and left-brace shall be special except when used in a bracket expression. and in fact, the standard says that doing '\{' should always result in matching of a '{' http://www.opengroup.org/onlinepubs/009695399/basedefs/xbd_chap09.html#tag_09_03_02 [^] so, since you arent using [{], and you arent using '\{', your code is not portable and busybox makes no promise that it will work

Issue History
Date Modified	Username	Field	Change
06-20-06 08:47	vda2	New Issue
06-20-06 08:47	vda2	Status	new => assigned
06-20-06 08:47	vda2	Assigned To	=> BusyBox
06-20-06 08:47	vda2	File Added: addsym.awk
06-20-06 09:15	vda	Issue Monitored: vda
06-20-06 16:18	vapier	Note Added: 0001436
06-20-06 16:18	vapier	Status	assigned => closed
06-20-06 16:18	vapier	Resolution	open => won't fix
06-20-06 16:18	vapier	Summary	awk/gawk incompatibility (testcase included) => awk/gawk incompatibility: busybox includes POSIX interval expressions by default

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