[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]
emacs-28 cd9dd26: Format and index concept 'predicate' in ELisp Intro
From: |
Lars Ingebrigtsen |
Subject: |
emacs-28 cd9dd26: Format and index concept 'predicate' in ELisp Intro |
Date: |
Tue, 30 Nov 2021 08:04:29 -0500 (EST) |
branch: emacs-28
commit cd9dd26d24c0e97b980fba44c2f8f9e1d6c919a5
Author: YugaEgo <yet@ego.team>
Commit: Lars Ingebrigtsen <larsi@gnus.org>
Format and index concept 'predicate' in ELisp Intro
* doc/lispintro/emacs-lisp-intro.texi (Wrong Type of Argument):
Add index and format definition (bug#52197).
Copyright-paperwork-exempt: yes
---
doc/lispintro/emacs-lisp-intro.texi | 3 ++-
1 file changed, 2 insertions(+), 1 deletion(-)
diff --git a/doc/lispintro/emacs-lisp-intro.texi
b/doc/lispintro/emacs-lisp-intro.texi
index e306458..bd5decf 100644
--- a/doc/lispintro/emacs-lisp-intro.texi
+++ b/doc/lispintro/emacs-lisp-intro.texi
@@ -2146,9 +2146,10 @@ number---the number of characters the location is from
the beginning
of the buffer.) In Emacs Lisp, @code{+} can be used to add the
numeric value of marker positions as numbers.
+@cindex @samp{predicate} defined
The @samp{p} of @code{number-or-marker-p} is the embodiment of a
practice started in the early days of Lisp programming. The @samp{p}
-stands for ``predicate''. In the jargon used by the early Lisp
+stands for @dfn{predicate}. In the jargon used by the early Lisp
researchers, a predicate refers to a function to determine whether some
property is true or false. So the @samp{p} tells us that
@code{number-or-marker-p} is the name of a function that determines
[Prev in Thread] |
Current Thread |
[Next in Thread] |
- emacs-28 cd9dd26: Format and index concept 'predicate' in ELisp Intro,
Lars Ingebrigtsen <=