Menu
In Elisp I have introduced for a special custom mode a variable like:
(defvar leo-special-var "")
(make-variable-buffer-local 'leo-special-var)
Now I set this variable in files I with the lines (in the file to edit):
# Local Variables:
# leo-special-var: "-d http://www.google.com.au"
# End:
And I want to consider this variable as "safe for all its values. That's why safe-local-variable-values doesn't help. Instead I tried (in the lisp code):
# setting the symbol property of the variable
(put 'leo-special-var 'safe-local-variable 'booleanp)
but without success. Do I do something wrong when setting the symbol property? Or is there another way?
622
local - Assign a local variable in a function qsh uses dynamic scoping, so that if you make the variable alpha local to function foo, which then calls function bar, references to the variable alpha made inside bar will refer to the variable declared inside foo, not to the global variable named alpha.
Local variables are a specific type of variable that are only available within the context of a particular expression and can only be accessed within the function that defines them. Local variables are useful when you only need that data within a particular expression.
You want to use
(put 'leo-special-var 'safe-local-variable #'stringp)
to say that it is safe as long as it's a string.
115
If you really want to state that it is safe for all values then use this:
(put 'leo-special-var 'safe-local-variable (lambda (_) t))
The function to test safety here returns non-nil for any value.
(But I'd think that you probably do not want to state that a variable is safe for any value.)
26
If you love us? You can donate to us via Paypal or buy me a coffee so we can maintain and grow! Thank you!
Donate Us With
