In this section, we document the
run-hooks function, which is
used to run a normal hook. We also document the functions for running
various kinds of abnormal hooks.
This function takes one or more normal hook variable names as arguments, and runs each hook in turn. Each argument should be a symbol that is a normal hook variable. These arguments are processed in the order specified.
If a hook variable has a non-
nil value, that value should be a
list of functions.
run-hooks calls all the functions, one by
one, with no arguments.
The hook variable’s value can also be a single function—either a
lambda expression or a symbol with a function definition—which
run-hooks calls. But this usage is obsolete.
If the hook variable is buffer-local, the buffer-local variable will
be used instead of the global variable. However, if the buffer-local
variable contains the element
t, the global hook variable will
be run as well.
This function runs an abnormal hook by calling all the hook functions in hook, passing each one the arguments args.
This function runs an abnormal hook by calling each hook function in
turn, stopping if one of them “fails” by returning
hook function is passed the arguments args. If this function
stops because one of the hook functions fails, it returns
otherwise it returns a non-
This function runs an abnormal hook by calling each hook function,
stopping if one of them “succeeds” by returning a non-
value. Each hook function is passed the arguments args. If this
function stops because one of the hook functions returns a
nil value, it returns that value; otherwise it returns