pcomplete-default-completion-function

pcomplete-default-completion-function is a variable defined in `pcomplete.el'.
Its value is

#[0 "\300\301 !\205\n\202\207"
    [pcomplete-here pcomplete-entries]
    2]

• This variable may be risky if used as a file-local variable.

Documentation:
Function called when no completion rule can be found.
This function is used to generate completions for every argument.

You can customize this variable.