Can we add a function which is used to returned immediately within an source file for lib?

Can we add a function which is used to returned immediately within an source file for lib?

[Yiyi Hu]

Can we add a function or extend (return t) to skip loading the rest of
source please?

Eg, my ~/.emacs

(defun byte-compile-file-if-newer (src)
 (let ((result (concat src ".elc")))
  (when (file-newer-than-file-p src result)
    (byte-compile-file src)
    (load-file result))))

(byte-compile-file-if-newer "~/.emacs")

(custom-set-variables
 ;; custom-set-variables was added by Custom.
 ;; If you edit it by hand, you could mess it up, so be careful.
 ;; Your init file should contain only one such instance.
 ;; If there is more than one, they won't work right.
 '(auto-compression-mode t)
 '(column-number-mode t)
 '(cperl-indent-level 4)
 '(delete-selection-mode t)
 '(display-battery-mode t)
 '(display-time-24hr-format t)
 '(display-time-day-and-date t)
 '(display-time-mode t)
 '(encoded-kbd-mode t)
 '(gnus-nntp-server "news.readfreenews.net")
 '(indent-tabs-mode nil)
 '(inferior-lisp-program "sbcl")
 '(inhibit-eol-conversion t)
 '(inhibit-startup-screen t)
 '(initial-scratch-message nil)
 '(menu-bar-mode nil)
 '(mouse-avoidance-mode (quote exile) nil (avoid)))

For now, there is now way to support skip the rest of ~/.emacs after
(byte-compile-file-if-newer "~/.emacs").

As It's already discussed.
So, I make long history short
Can we have a function or exend (return t) function for skip loading
of reset of ~/.emacs after we load the compiled version of ~/.emacs?
     (if (byte-compile-file-if-newer src-file)
(exit-loading-of-remaining-source))
If you really want to see the reason, It's ok, I'll explain them again.

Thanks.

PS:
I don't mean to flood across several lists, At last, according to
asking within #emacs and my understanding, I think emacs-devel should
be the right place for a feature request on elisp language itself.

Re: Can we add a function which is used to returned immediately within an source file for lib?

[mail]

"Yiyi Hu" <yiyihu@gmail.com> writes:

> Can we add a function or extend (return t) to skip loading the rest of
> source please?

What's wrong with `if'?

-- 
BOFH excuse #77:

Typo in the code

Re: Can we add a function which is used to returned immediately within an source file for lib?

[Yiyi Hu]

What I want to do is simple:
When emacs starts, It checks if ~/.emacs is newer than ~/.emacs.elc,
if it does, then it recompiles the ~/.emacs, and load ~/.emacs.elc on
the fly. But skip the rest of ~/.emacs, The reason why I want this
will be explained.

The unless version has this problem.
 (unless (byte-compile-file-if-newer "~/.emacs")
remaining lisp code ...)
Because, This will confuse M-x customize-* series functions.
Eg, when you put (customize-set-variables ....) things within (unless
(byte-compile-file-if-newer "~/.emacs") )
When you do M-x customzie-variable <RET> again, It will crate another
list which is like (customize-set-variables ...) outside of the file
level (unless () ...) statement. If you think It's ok, Please check
the example above. (customize-set-variables ..) will take effect and
last a session.

returning while loading source is a good feature to have.

On Wed, Sep 10, 2008 at 9:06 PM,  <mail@justinbogner.com> wrote:
> "Yiyi Hu" <yiyihu@gmail.com> writes:
>
>> Can we add a function or extend (return t) to skip loading the rest of
>> source please?
>
> What's wrong with `if'?
>
> --
> BOFH excuse #77:
>
> Typo in the code
>
>
>
>

Re: Can we add a function which is used to returned immediately within an source file for lib?

[David Hansen]

On Fri, 12 Sep 2008 02:37:47 +0000 Yiyi Hu wrote:

> What I want to do is simple:
> When emacs starts, It checks if ~/.emacs is newer than ~/.emacs.elc,
> if it does, then it recompiles the ~/.emacs, and load ~/.emacs.elc on
> the fly. But skip the rest of ~/.emacs, The reason why I want this
> will be explained.

Do the time stamp check and recompile from .emacs but use another file
for the actual code.

> The unless version has this problem.
>  (unless (byte-compile-file-if-newer "~/.emacs")
> remaining lisp code ...)
> Because, This will confuse M-x customize-* series functions.
> Eg, when you put (customize-set-variables ....) things within (unless
> (byte-compile-file-if-newer "~/.emacs") )

Use another `custom-file' (setq custom-file "~/.emacs.d/emacs-custom")
or w/ above suggestion the problem doesn't occur:

(when (have-to-recompile-my-init-file-p)
  (byte-compile-file my-init-file))
(load my-init-file)

;; Custom stuff follows...

> returning while loading source is a good feature to have.

Well, you can always use `condition-case' and `error' but you need one
wrapper for it.

David

Re: Can we add a function which is used to returned immediately within an source file for lib?

[Yiyi Hu]

The example is,

If I do something like:
 (if (byte-compile-file-if-newer "~/.emacs") (load-file "~/.emacs.elc"))
Here is a situation depends on wether ~/.emacs.elc exists.
If ~/.emacs.elc exists and ever being compiled with a line (defalias
'perl-mode 'cperl-mode), and we remove
(defalias 'perl-mode 'cperl-mode) in ~/.emacs, then, cperl-mode will
still be in effect for the first time we start emacs use the new
~/.emacs, we have to restart emacs again or manually byte-compile the
~/.emacs. The reason which causes this is, the side effect created in
old ~/.emacs.elc will still in effect.


On Fri, Sep 12, 2008 at 2:37 AM, Yiyi Hu <yiyihu@gmail.com> wrote:
> What I want to do is simple:
> When emacs starts, It checks if ~/.emacs is newer than ~/.emacs.elc,
> if it does, then it recompiles the ~/.emacs, and load ~/.emacs.elc on
> the fly. But skip the rest of ~/.emacs, The reason why I want this
> will be explained.
>
> The unless version has this problem.
>  (unless (byte-compile-file-if-newer "~/.emacs")
> remaining lisp code ...)
> Because, This will confuse M-x customize-* series functions.
> Eg, when you put (customize-set-variables ....) things within (unless
> (byte-compile-file-if-newer "~/.emacs") )
> When you do M-x customzie-variable <RET> again, It will crate another
> list which is like (customize-set-variables ...) outside of the file
> level (unless () ...) statement. If you think It's ok, Please check
> the example above. (customize-set-variables ..) will take effect and
> last a session.
>
> returning while loading source is a good feature to have.
>
> On Wed, Sep 10, 2008 at 9:06 PM,  <mail@justinbogner.com> wrote:
>> "Yiyi Hu" <yiyihu@gmail.com> writes:
>>
>>> Can we add a function or extend (return t) to skip loading the rest of
>>> source please?
>>
>> What's wrong with `if'?
>>
>> --
>> BOFH excuse #77:
>>
>> Typo in the code
>>
>>
>>
>>
>