Emacs Schell Scripting

Emacs Schell Scripting

[Volkan YAZICI]

Hi,

I have written a small wrapper shell script over htmlize.el to output
syntax highlighted forms of buffers into HTML files. (Why bothering
with syntax highligting libraries while there is emacs already?) But
I'm having some troubles with command line arguments in emacs shell
scripts. Consider below output:

  $ cat example.el
  #!/usr/local/bin/emacs --script
  (message "ARGV: %s\n" command-line-args)

  $ ./example.el foo bar baz
  ARGV: (/usr/local/bin/emacs -scriptload ./example.el foo bar baz)

In the initialization of my program, I create a custom args variable:

  (defvar args (cons (first command-line-args) (subseq command-line-
args 3)))

But isn't there a more portable and concise way of doing this? (OTOH,
I don't know if "-scriptload ./example.el" part differs between
different emacs versions.)


Regards.

Re: Emacs Schell Scripting

[Xah Lee]

On Mar 25, 6:26 am, Volkan YAZICI <volkan.yaz...@gmail.com> wrote:
> Hi,
>
> I have written a small wrapper shell script over htmlize.el to output
> syntax highlighted forms of buffers into HTML files. (Why bothering
> with syntax highligting libraries while there is emacs already?) But
> I'm having some troubles with command line arguments in emacs shell
> scripts. Consider below output:
>
>   $ cat example.el
>   #!/usr/local/bin/emacs --script
>   (message "ARGV: %s\n" command-line-args)
>
>   $ ./example.el foo bar baz
>   ARGV: (/usr/local/bin/emacs -scriptload ./example.el foo bar baz)
>
> In the initialization of my program, I create a custom args variable:
>
>   (defvar args (cons (first command-line-args) (subseq command-line-
> args 3)))
>
> But isn't there a more portable and concise way of doing this? (OTOH,
> I don't know if "-scriptload ./example.el" part differs between
> different emacs versions.)

dont' have answer to your question specifically...  but, there are at
least 2 robust packages that do what you want already.

I use htmlize.el by Hrvoje Niksic.
at http://fly.srk.fer.hr/~hniksic/emacs/htmlize.el

For a tutorial, pls see:

• Elisp: Syntax Coloring Source Code In HTML
  http://xahlee.org/emacs/elisp_htmlize.html

Also, at the bottom of the above page, you'll see that google has
released a js code that syntax color source code as presented in html
with the pre tag, without needing span markup, and does it in real
time. It is fast, small, and works for many langs.

  Xah
∑ http://xahlee.org/

☄

Re: Emacs Schell Scripting

[Xah Lee]

On Mar 25, 5:02 pm, Xah Lee <xah...@gmail.com> wrote:
> On Mar 25, 6:26 am, Volkan YAZICI <volkan.yaz...@gmail.com> wrote:

> > I have written a small wrapper shell script over htmlize.el to output
> > syntax highlighted forms of buffers into HTML files. (Why bothering
> > with syntax highligting libraries while there is emacs already?) But
> > I'm having some troubles with command line arguments in emacs shell
> > scripts. Consider below output:
>
> >   $ cat example.el
> >   #!/usr/local/bin/emacs --script
> >   (message "ARGV: %s\n" command-line-args)
>
> >   $ ./example.el foo bar baz
> >   ARGV: (/usr/local/bin/emacs -scriptload ./example.el foo bar baz)
>
> > In the initialization of my program, I create a custom args variable:
>
> >   (defvar args (cons (first command-line-args) (subseq command-line-
> > args 3)))
>
> > But isn't there a more portable and concise way of doing this? (OTOH,
> > I don't know if "-scriptload ./example.el" part differs between
> > different emacs versions.)

sorry, didn't read your previous message carefully.

i read your message again, but after 1 min, i don't quite understand
what you wanted.

Get to the point!

  Xah
∑ http://xahlee.org/

☄

Re: Emacs Schell Scripting

[Johan Bockgård]

Volkan YAZICI <volkan.yazici@gmail.com> writes:

>   (defvar args (cons (first command-line-args) (subseq command-line-
> args 3)))
>
> But isn't there a more portable and concise way of doing this?

command-line-args-left

Re: Emacs Schell Scripting

[TomSW]

> Get to the point!

He means, is there an existing way to access any command-line
arguments that haven't been processed by Emacs.
How about the variable "command-line-args-left"?

~$ cat example2.el
#!/usr/bin/emacs  --script

(message "ARGS: %s\n" command-line-args-left)

~$ ./example2.el foo bar baz
...
ARGS: (foo bar baz)


cheers,
Tom SW

Re: Emacs Schell Scripting

[Volkan YAZICI]

On Mar 26, 9:21 pm, bojohan+n...@dd.chalmers.se (Johan Bockgård)
wrote:
> command-line-args-left

Oops! I must have gone blind. Thanks for the tip. (Also, thanks to
TomSW.)