tildify-pattern

tildify-pattern is a variable defined in `tildify.el'.
Its value is

"\\(?:[,:;(][ 	]*[a]\\|\\<[AIKOSUVZikosuvz]\\)\\([ 	]+\\|[ 	]*\n[ 	]*\\)\\(?:\\w\\|[([{\\]\\|<[a-zA-Z]\\)"

• This variable is safe as a file local variable if its value
  satisfies the predicate `t'.

Documentation:
A pattern specifying where to insert hard spaces.

`tildify-buffer' function will replace first capturing group of the regexp with
a hard space (as defined by `tildify-space-string' variable). (Hint: \(…\)
non-capturing groups can be used for grouping prior to the part of the regexp
matching the white space). The pattern is matched case-sensitive regardless of
the value of `case-fold-search' setting.

You can customize this variable.

This variable was introduced, or its default value was changed, in version 25.1 of Emacs.