[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]
[Emacs-diffs] trunk r117133: * doc/lispref/sequences.texi (Sequence Func
From: |
Leo Liu |
Subject: |
[Emacs-diffs] trunk r117133: * doc/lispref/sequences.texi (Sequence Functions): Update nreverse. |
Date: |
Wed, 21 May 2014 04:00:52 +0000 |
User-agent: |
Bazaar (2.6b2) |
------------------------------------------------------------
revno: 117133
revision-id: address@hidden
parent: address@hidden
committer: Leo Liu <address@hidden>
branch nick: trunk
timestamp: Wed 2014-05-21 11:49:58 +0800
message:
* doc/lispref/sequences.texi (Sequence Functions): Update nreverse.
* src/fns.c (Fnreverse): Accept strings for SEQ and update doc-string.
modified:
doc/lispref/ChangeLog changelog-20091113204419-o5vbwnq5f7feedwu-6155
doc/lispref/sequences.texi
sequences.texi-20091113204419-o5vbwnq5f7feedwu-6209
src/ChangeLog changelog-20091113204419-o5vbwnq5f7feedwu-1438
src/fns.c fns.c-20091113204419-o5vbwnq5f7feedwu-203
=== modified file 'doc/lispref/ChangeLog'
--- a/doc/lispref/ChangeLog 2014-05-19 19:19:05 +0000
+++ b/doc/lispref/ChangeLog 2014-05-21 03:49:58 +0000
@@ -1,3 +1,7 @@
+2014-05-21 Leo Liu <address@hidden>
+
+ * sequences.texi (Sequence Functions): Update nreverse.
+
2014-05-19 Paul Eggert <address@hidden>
Allow any non-nil value to count as true in bool-vector.
=== modified file 'doc/lispref/sequences.texi'
--- a/doc/lispref/sequences.texi 2014-05-19 19:19:05 +0000
+++ b/doc/lispref/sequences.texi 2014-05-21 03:49:58 +0000
@@ -261,13 +261,16 @@
@end defun
@defun nreverse seq
address@hidden reversing a string
@cindex reversing a list
@cindex reversing a vector
This function reverses the order of the elements of @var{seq}.
-If @var{seq} is a list, @code{nreverse} alters its by reversing the @sc{cdr}s
+If @var{seq} is a list, @code{nreverse} alters it by reversing the @sc{cdr}s
in the cons cells. The cons cell that used to be the last one in @var{seq}
becomes the first cons cell of the value. If @var{seq} is a vector or
-bool vector, its items are placed in the same vector in a reversed order.
+bool vector, its items are placed in the same vector in a reversed
+order. If @var{seq} is a string, it works like @code{reverse} i.e., no
+destructive modifcation in preference to treat strings as immutable.
For example:
=== modified file 'src/ChangeLog'
--- a/src/ChangeLog 2014-05-20 08:25:18 +0000
+++ b/src/ChangeLog 2014-05-21 03:49:58 +0000
@@ -1,3 +1,7 @@
+2014-05-21 Leo Liu <address@hidden>
+
+ * fns.c (Fnreverse): Accept strings for SEQ and update doc-string.
+
2014-05-20 Michael Albinus <address@hidden>
* dbusbind.c (xd_signature): Revert last 2 patches.
=== modified file 'src/fns.c'
--- a/src/fns.c 2014-05-15 14:59:02 +0000
+++ b/src/fns.c 2014-05-21 03:49:58 +0000
@@ -1697,16 +1697,15 @@
}
DEFUN ("nreverse", Fnreverse, Snreverse, 1, 1, 0,
- doc: /* Reverse order of items in a list or vector SEQ.
-If SEQ is a list, it should be nil-terminated, and reversed
-by modifying cdr pointers. Return the reversed SEQ.
-
-Note that unlike `reverse', this function doesn't work with strings.
-It is strongly encouraged to treat them as immutable. */)
+ doc: /* Reverse order of items in a list, vector or string SEQ.
+If SEQ is a list, it should be nil-terminated.
+This function may destructively modify SEQ to produce the value. */)
(Lisp_Object seq)
{
if (NILP (seq))
return seq;
+ else if (STRINGP (seq))
+ return Freverse (seq);
else if (CONSP (seq))
{
Lisp_Object prev, tail, next;
[Prev in Thread] |
Current Thread |
[Next in Thread] |
- [Emacs-diffs] trunk r117133: * doc/lispref/sequences.texi (Sequence Functions): Update nreverse.,
Leo Liu <=