Re: How to access vile variables in : command?

[Thomas Dickey]

On Wed, Nov 08, 2023 at 03:51:37PM +0000, Chris Green wrote:
> I'm sure this should be obvious but at the moment it's not obvious to
> me! :-)
> 
> I want to do something like the following:-
> 
>     map #9 :e `pdf $cfilname`^M
> 
> However the above doesn't work, $cfilname is null in the above
> context. How can I get the current file's name in this sort of place? 

rather than map, doing a bind (to a stored macro) would work.

#9 is treated as function-key 9, and by default is bound to the name
execute-macro-9 (seen using describe-key):

"execute-macro-9"               #-9

untested (does pdf echo the name of the file? - I checked with just "echo"),
but to give some idea how to organize it:

9 store-macro
        " make a buffer to get the output of pdf
        kill-buffer pdf-output
        edit-file &cat "!pdf " $pathname
        rename-buffer pdf-output
        " cursor is at the beginning of the line; open that file
        find-file $pathname
        " dispose of the temporary buffer
        kill-buffer pdf-output
~endm

-- 
Thomas E. Dickey <dickey@invisible-island.net>
https://invisible-island.net

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