Re: [Bug-ed] Reading something into an empty file should set "changed" flag

[Antonio Diaz Diaz]

John Cowan wrote:
> Reading in a file certainly counts as a change in the buffer, so a
> q command in that circumstance should be rejected.  I suppose a
> case could be made that if the read-in file is empty, the modified
> flag should not be set, but I think that would be more confusing.

I think the case for not setting the modified flag when reading an empty 
file is indeed strong because, well, the buffer has not been modified, 
and a subsequent undo won't be able to reset the flag.

$ touch x
$ echo foo > y
$ ed y
4
r x
0
u
?
h
Nothing to undo