make find executable name configurable

handle ts/js styled componets file name

*.pdf should not be excluded because it is viewable

recognize environment variable in file name at point

fixed ci

find file operation history can be re-used

In diff-mode, kill all hunks whose file names match user input pattern

diff directory; diff files by file name extension

ido and other completion frameworks share same code

add missing variable ffip-prefer-ido-mode