Mercurial > hg > xemacs-beta
comparison lisp/custom.el @ 4502:8748a3f7ceb4
Handle varalias chains, custom variables in #'user-variable-p.
src/ChangeLog addition:
2008-08-23 Aidan Kehoe <kehoea@parhasard.net>
* eval.c (Fuser_variable_p): Moved to symbols.c
* symbols.c (Fcustom_variable_p): Moved here from custom.el.
(user_variable_alias_check_fun): Mapper function used in
`user-variable-p'.
(Fuser_variable_p): Moved here from eval.c, to allow it to examine
the variable alias chain. Expanded to check each entry in the
variable alias chain for signs of being a user variable;
documentation updated, noting the differences between GNU's
behaviour and ours (ours is a little more sensible)
(map_varalias_chain): New.
Given a C function, call it at least once for each symbol in a
symbol's varalias chain, signalling an error if there's a cycle,
and returning immediately if the function returns something other
than Qzero.
(Fdefvaralias): Correct the use of the word "alias" in the
docstring and in the argument name. Motivate this in a
comment. Add support for a DOCSTRING argument, something GNU has
too, and document this
* gc.c (vars_of_gc): Start the docstring of
`garbage-collection-messages' with an asterisk, to indicate that
it's a user variable.
lisp/ChangeLog addition:
2008-08-23 Aidan Kehoe <kehoea@parhasard.net>
* custom.el: Move #'custom-variable-p to C, since it's now called
from #'user-variable-p.
| author | Aidan Kehoe <kehoea@parhasard.net> |
|---|---|
| date | Sat, 23 Aug 2008 16:38:51 +0200 |
| parents | 1d7faae1080c |
| children | 061e030e3270 |
comparison
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| 4501:c4fd85dd95bd | 4502:8748a3f7ceb4 |
|---|---|
| 512 (defun custom-autoload (symbol load) | 512 (defun custom-autoload (symbol load) |
| 513 "Mark SYMBOL as autoloaded custom variable and add dependency LOAD." | 513 "Mark SYMBOL as autoloaded custom variable and add dependency LOAD." |
| 514 (put symbol 'custom-autoload t) | 514 (put symbol 'custom-autoload t) |
| 515 (custom-add-load symbol load)) | 515 (custom-add-load symbol load)) |
| 516 | 516 |
| 517 ;; This test is also in the C code of `user-variable-p'. | 517 ;; XEmacs; |
| 518 (defun custom-variable-p (variable) | 518 ;; #'custom-variable-p is in symbols.c, since it's called from |
| 519 "Return non-nil if VARIABLE is a custom variable." | 519 ;; #'user-variable-p. |
| 520 (or (get variable 'standard-value) | |
| 521 (get variable 'custom-autoload))) | |
| 522 | 520 |
| 523 ;;; Loading files needed to customize a symbol. | 521 ;;; Loading files needed to customize a symbol. |
| 524 ;;; This is in custom.el because menu-bar.el needs it for toggle cmds. | 522 ;;; This is in custom.el because menu-bar.el needs it for toggle cmds. |
| 525 | 523 |
| 526 (defvar custom-load-recursion nil | 524 (defvar custom-load-recursion nil |