dabbrev--eliminate-newlines

[Johan Bockgård]

1. dabbrev--eliminate-newlines is a defcustom--should it really have a
double-dash name?


2. It doesn't work correctly for SPC M-/.

Assume that the buffer contains this text (and
dabbrev--eliminate-newlines is t (the default)):

aaa

bbb

Then the sequence `a M-/ SPC M-/' produces this text:

aaa
 bbb

(In Emacs 21 the result was "aaa  bbb".)

In this case ABBREV is " ", i.e. POS = 1, in the code below
[dabbrev--substitute-expansion]. This has the effect that any
whitespace characters are converted, except the first one:

    ;; Convert whitespace to single spaces.
    (if dabbrev--eliminate-newlines
        ;; Start searching at end of ABBREV so that any whitespace
        ;; carried over from the existing text is not changed.
        (let ((pos (length abbrev)))
          (while (string-match "[\n \t]+" expansion pos)
            (setq pos (1+ (match-beginning 0)))
            (setq expansion (replace-match " " nil nil expansion)))))


2003-01-05  Richard M. Stallman  <address@hidden>

        * dabbrev.el (dabbrev--substitute-expansion):
        Convert all whitespace to single spaces,
        except when it's carried over from the existing text.

-- 
Johan Bockgård