bug#23676: Seems egrep violates simple rules of regexps

[Paul Eggert]

On 06/01/2016 12:33 PM, Марк Коренберг wrote:

Example:

$ echo qwerty | egrep -o 'we|wert'
wert
$ echo qwerty | egrep -o 'wert|we'
wert

That's not a bug; it's a feature. See, for example:

https://swtch.com/~rsc/regexp/regexp1.html