[Bash-completion-devel] A question about 9af6f3504e8c94e5ead187b7cd223bd481548957

[Igor Murzov]

Hi, list.

Can someone throw a light on why changing
  have && { ... }
to
  have || return  { ... }
is a good idea? It is not clear how to return from script with multiple 
functions. For example in completions/xz I see following:
---------------------------------------------
have xz || have pxz || return

_xz()
{
  ...
} && complete -F _xz xz pxz

have xzdec &&
_xzdec()
{
 ...
} && complete -F _xzdec xzdec
---------------------------------------------
If there is no xz in the system, but xzdec is there, then both functions will 
not be loaded. May be the better way is to place all names to the first check 
and left everything else unchanged like this:
---------------------------------------------
have xz || have pxz || have xzdec || return

have xz || have pxz && _xz()
{
  ...
} && complete -F _xz xz pxz

have xzdec &&
_xzdec()
{
 ...
} && complete -F _xzdec xzdec
---------------------------------------------
This way I think it will be more correct and still fast if no appropriate 
utilites found. But this way to my mind it's somewhat hard to maintain all 
these scripts.


-- Igor