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Re: Show who is requiring
From: |
Thien-Thi Nguyen |
Subject: |
Re: Show who is requiring |
Date: |
Sat, 17 Nov 2012 13:00:34 +0100 |
User-agent: |
Gnus/5.13 (Gnus v5.13) Emacs/24.1 (gnu/linux) |
() Eli Zaretskii <eliz@gnu.org>
() Sat, 17 Nov 2012 13:02:47 +0200
Sorry, I just couldn't imagine that someone will not know about
buffer-file-name and current-buffer.
To be fair, guessing those requires knowing something about how ‘load’
works. Emacs is buffer-centric so it ‘load’s by first populating a
buffer then ‘read’ing from it. Guile, as a counter-example, implements
‘load’ by ‘read’ing from a "port". Other systems might mmap(2) or talk
to a daemon or whatever.
I see that (info "(emacs) Lisp Libraries")
says only:
To "load" an Emacs Lisp file, type `M-x load-file'. This command reads
a file name using the minibuffer, and executes the contents of that
file as Emacs Lisp code. It is not necessary to visit the file first;
this command reads the file directly from disk, not from an existing
Emacs buffer.
In (info "(elisp) How Programs Do Loading")
there is a bit more:
Whatever the name under which the file is eventually found, and the
directory where Emacs found it, Emacs sets the value of the variable
`load-file-name' to that file's name.
[...]
When loading a source file (not compiled), `load' performs
character set translation just as Emacs would do when visiting the
file. *Note Coding Systems::.
but again, how ‘load’ actually does its job is never detailed. To my
ears, this is a just omission, and thus OP's question has some merit.
--
Thien-Thi Nguyen ..................................... GPG key: 4C807502
. NB: ttn at glug dot org is not me .
. (and has not been since 2007 or so) .
. ACCEPT NO SUBSTITUTES .
........... please send technical questions to mailing lists ...........
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RE: Show who is requiring, Drew Adams, 2012/11/17
Re: Show who is requiring, Stefan Monnier, 2012/11/19
Re: Show who is requiring, Kevin Rodgers, 2012/11/19