find-word-boundary-function-table

find-word-boundary-function-table is a variable defined in `C source code'.
Its value is

#^[nil nil nil nil nil nil nil nil nil nil nil nil nil nil nil nil nil nil nil nil nil nil nil nil nil nil nil nil nil nil nil nil nil nil nil nil nil nil nil nil nil nil nil nil nil nil nil nil nil nil nil nil nil nil nil nil nil nil nil nil nil nil nil nil nil nil nil nil]

Documentation:
Char table of functions to search for the word boundary.
Each function is called with two arguments; POS and LIMIT.
POS and LIMIT are character positions in the current buffer.

If POS is less than LIMIT, POS is at the first character of a word,
and the return value of a function is a position after the last
character of that word.

If POS is not less than LIMIT, POS is at the last character of a word,
and the return value of a function is a position at the first
character of that word.

In both cases, LIMIT bounds the search.