ido-rewrite-file-prompt-rules

ido-rewrite-file-prompt-rules is a variable defined in `ido.el'.
Its value is

nil

Documentation:
Alist of rewriting rules for directory names in Ido prompts.
A list of elements of the form (FROM . TO) or (FROM . FUNC), each
meaning to rewrite the directory name if matched by FROM by either
substituting the matched string by TO or calling the function FUNC
with the current directory name as its only argument and using the
return value as the new directory name. In addition, each FUNC may
also modify the dynamic variables described for the variable
`ido-rewrite-file-prompt-functions'.