[TRE-general] $ doesn't match end-of-line

[William J Poser]

Sebastian Nagel wrote:
	I found the following unexpected (somewhat unusual behaviour) of agrep.
	Maybe it's a feature?

	[volga:~] echo -e "asdf" | agrep '^asdf$'
	[volga:~] echo -e "asdf" | agrep '^asdf\n$'
	asdf
	[volga:~] agrep -V
	agrep (TRE agrep) 0.7.3


I ran into the same thing. It seems that agrep includes the record
delimiter in the record. This is borne out by using the -d flag
to set the delimiter, e.g.: 

[175]: echo 'a919:9' | agrep -d 9 -M '\D'
a9:9
[176]: echo 'a919:9' | agrep -d 9 -M '\d'
a919:9[177]:

In the second case we get three matches rather than the
expected match only to "1" because the delimiter, 
"9", is included in the record, so both "a9" and ":9" match
since they contain a digit.

This is non-standard (in the sense of
different from other greps) but could be useful. I would change the
default but perhaps keep this as an option.

Bill