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author | Alan Mackenzie <acm@muc.de> | 2015-12-07 10:39:07 +0000 |
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committer | Alan Mackenzie <acm@muc.de> | 2015-12-07 10:39:07 +0000 |
commit | f5c403d269f4f5079dc47853f16a51e9542ea238 (patch) | |
tree | fc2cd75cc227517ff727579d70ca1b35097b9361 | |
parent | 72c20d0be811966afccdb7551d3341d10d3be9a9 (diff) | |
download | emacs-f5c403d269f4f5079dc47853f16a51e9542ea238.tar.gz |
Amend doc of `mapconcat': it can take sequences, not merely strings.
* doc/lispref/functions.texi (Mapping Functions): Amend the doc of `mapconcat'
to say that SEPARATOR and the results from FUNCTION may be any character
sequences, not just strings. Add an @xref to "Sequences Arrays Vectors".
-rw-r--r-- | doc/lispref/functions.texi | 17 |
1 files changed, 10 insertions, 7 deletions
diff --git a/doc/lispref/functions.texi b/doc/lispref/functions.texi index 8835667b82d..7cc041fa77e 100644 --- a/doc/lispref/functions.texi +++ b/doc/lispref/functions.texi @@ -861,15 +861,18 @@ into a list. @code{mapc} always returns @var{sequence}. @defun mapconcat function sequence separator @code{mapconcat} applies @var{function} to each element of -@var{sequence}: the results, which must be strings, are concatenated. -Between each pair of result strings, @code{mapconcat} inserts the string -@var{separator}. Usually @var{separator} contains a space or comma or -other suitable punctuation. +@var{sequence}; the results, which must be sequences of characters +(strings, vectors, or lists), are concatenated into a single string +return value. Between each pair of result sequences, @code{mapconcat} +inserts the characters from @var{separator}, which also must be a +string, or a vector or list of characters. @xref{Sequences Arrays +Vectors}. The argument @var{function} must be a function that can take one -argument and return a string. The argument @var{sequence} can be any -kind of sequence except a char-table; that is, a list, a vector, a -bool-vector, or a string. +argument and returns a sequence of characters: a string, a vector, or +a list. The argument @var{sequence} can be any kind of sequence +except a char-table; that is, a list, a vector, a bool-vector, or a +string. @example @group |