font-lock-keywords-case-fold-search

font-lock-keywords-case-fold-search is a variable defined in `font-lock.el'.
Its value is
nil

  • Automatically becomes buffer-local when set.

Documentation:
Non-nil means the patterns in `font-lock-keywords' are case-insensitive.
This is set via the function `font-lock-set-defaults', based on
the CASE-FOLD argument of `font-lock-defaults'.