find the file name of the running function programatically

find the file name of the running function programatically

[Xah]

how to find out the file name of the running function
programmatically?

for example, i have:

(defun command-frequency-write-file (file-name)
  (with-temp-file file-name
    (insert (command-frequency)))
  (with-temp-message (format "Wrote %s" file-name)))

i want to change this function so that it doesn't require any arg.
The file name will just be in the same dir but with a “.txt” suffix.

Thanks.

  Xah
∑ http://xahlee.org/

☄

Re: find the file name of the running function programatically

[Chat]

Xah <xahlee@gmail.com> writes:

> how to find out the file name of the running function
> programmatically?
>
> for example, i have:
>
> (defun command-frequency-write-file (file-name)
>   (with-temp-file file-name
>     (insert (command-frequency)))
>   (with-temp-message (format "Wrote %s" file-name)))
>
> i want to change this function so that it doesn't require any arg.
> The file name will just be in the same dir but with a “.txt” suffix.
>
> Thanks.
>
>   Xah
> ∑ http://xahlee.org/
>
> ☄
Doesn't look like there is a simple function that will work in all versions.
However, given that not all libraries reside on writable file systens, doesn't
it make sense to store it somewhere under HOME?

Chat

Re: find the file name of the running function programatically

[John Paul Wallington]

Xah <xahlee@gmail.com> writes:

> how to find out the file name of the running function
> programmatically?

You can find out the filename of the file in which a function
was defined, if any, using `symbol-file'.

You might work out the running function by looking at what
`backtrace-frame' returns.  If you are interested instead in the running
command rather than function then you probably want to use the variables
`last-command' or `this-command'.