From: Oleh Krehel <oleh.krehel@gmail.com>
To: emacs-devel@gnu.org
Subject: Elisp / C inconsistency for reading "1."
Date: Fri, 14 Mar 2014 13:13:32 +0100 [thread overview]
Message-ID: <CAJ1SQWC8NvC-GyGzb+EgZ2AADzqG0Wc1Z1dcUQcdE=c-eCHoOQ@mail.gmail.com> (raw)
Hi all,
I understand that it's documented in the manual that "1." is an
integer and not a float, but this feels very wrong coming from a C
background.
And a nuisance when I want to quickly compute a percentage in
*scratch*:
(/ 123. 338)
;; => 0
Then I see the error, get annoyed and change to "123.0".
This happens a lot.
Is there any chance for this to be changed?
I did rgrep for "[0-9]\.[^0-9a-zA-Z]" across the emacs/lisp directory
and got 2250 hits. Filtering that by code-only gives 38 hits, more
then half in vc-annotate.el. Out of the ELPA/MELPA packages that I
use, the only hits were in zenburn-theme.el.
So it seems to me that this is an easy change to make: since most
Elisp code almost never uses the trailing decimal point in integers
anyway, make the changes to the 38 hits I mentioned above (just remove
the dot) and enforce this style with a compile-time warning/error. At
the same time change the reader to interpret "1." as a float thus
increasing the convenience of an interactive eval.
regards,
Oleh
next reply other threads:[~2014-03-14 12:13 UTC|newest]
Thread overview: 7+ messages / expand[flat|nested] mbox.gz Atom feed top
2014-03-14 12:13 Oleh Krehel [this message]
2014-03-14 14:30 ` Elisp / C inconsistency for reading "1." Paul Eggert
2014-03-14 16:46 ` Stefan
2014-03-15 16:21 ` Wolfgang Jenkner
2014-03-15 16:43 ` David Kastrup
2014-03-15 18:39 ` Simon Leinen
2014-03-16 1:31 ` Paul Eggert
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