ediff-hide-regexp-matches-function

ediff-hide-regexp-matches-function is a variable defined in `ediff-init.el'.
Its value is

ediff-hide-regexp-matches

• Automatically becomes permanently buffer-local when set.
• This variable may be risky if used as a file-local variable.

Documentation:
Function to use in determining which regions to hide.
See the documentation string of `ediff-hide-regexp-matches' for details.