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emacs
emacs
Commits
22526bc4
Commit
22526bc4
authored
Oct 14, 2008
by
Eli Zaretskii
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(Char-Tables): `map-char-table' can now call its argument FUNCTION with
a cons cell as KEY.
parent
e16acc2c
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doc/lispref/ChangeLog
doc/lispref/ChangeLog
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doc/lispref/sequences.texi
doc/lispref/sequences.texi
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doc/lispref/ChangeLog
View file @
22526bc4
2008
-
10
-
14
Eli
Zaretskii
<
eliz
@
gnu
.
org
>
*
sequences
.
texi
(
Char
-
Tables
):
`
map
-
char
-
table
' can now call its
argument FUNCTION with a cons cell as KEY.
2008-10-13 Eli Zaretskii <eliz@gnu.org>
* objects.texi (Primitive Function Type): Move "@cindex special
...
...
doc/lispref/sequences.texi
View file @
22526bc4
...
...
@@ -658,30 +658,38 @@ name. @xref{Splitting Characters}, for a description of generic characters.
@end defun
@defun map-char-table function char-table
This function calls @var{function} for each element of @var{char-table}.
This function calls the specified @var{function} for each element of
@var{char-table} that has a non-@code{nil} value.
@var{function} is called with two arguments, a key and a value. The key
is a possible @var{range} argument for @code{char-table-range}---either
a valid character or a generic character---and the value is
@code{(char-table-range @var{char-table} @var{key})}.
a valid character or a cons cell @code{(@var{from} . @var{to})},
specifying a range of characters that share the same value. The value is
what @code{(char-table-range @var{char-table} @var{key})} returns.
Overall, the key-value pairs passed to @var{function} describe all the
values stored in @var{char-table}.
The return value is always @code{nil}; to make
this function useful,
@var{function} should have side effects.
For example,
here is how to examine
each
element of the syntax table:
The return value is always @code{nil}; to make
calls to
@code{map-char-table} useful,
@var{function} should have side effects.
For example,
here is how to examine
the
element
s
of the syntax table:
@example
(let (accumulator)
(map-char-table
#'(lambda (key value)
(setq accumulator
(cons (list key value) accumulator)))
(syntax-table))
accumulator)
(map-char-table
#'(lambda (key value)
(setq accumulator
(cons (list
(if (consp key)
(list (car key) (cdr key))
key)
value)
accumulator)))
(syntax-table))
accumulator)
@result{}
((475008 nil) (474880 nil) (474752 nil) (474624 nil)
... (5 (3)) (4 (3)) (3 (3)) (2 (3)) (1 (3)) (0 (3)))
(((2597602 4194303) (2)) ((2597523 2597601) (3))
... (65379 (5 . 65378)) (65378 (4 . 65379)) (65377 (1))
... (12 (0)) (11 (3)) (10 (12)) (9 (0)) ((0 8) (3)))
@end example
@end defun
...
...
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