Hi I'm working on some assembly language files.
Here is a relevant snippet
// Wait for line $ff and prepare next frame
loop2: lda #$ff // <- Inside the scope labels can collide so we use 'loop2'
cmp $d012
bne loop2
What I'd like is for the comments to wrap where they are. i.e. a comment should wrap and be indented where the original comment began.
This should in theory be possible with visual-fill-column-mode and adaptive-wrap-prefix-mode - it should just be a matter of setting adaptive-fill-regexp to .*// and according to the documentation:
the candidate must match this regular expression, or match comment-start-skip. If it doesn’t, fill-context-prefix replaces the candidate with a string of spaces of the same width as it.
So I should get a string of spaces to give me an indent to match the original comment start.
Instead however I get this:
// Wait for line $ff and prepare next frame
loop2: lda #$ff // <- Inside the scope labels can
loop2: lda #$ff //collide so we use 'loop2'
cmp $d012
bne loop2
Which is what you'd expect if the space-filling logic described in the doc wasn't working.
I've even tracked down the code in emacs (fill.el.gz), and it seems like it should do what I expect, but I don't have the knowhow at this point in time to actually debug it myself.
;; If first-line-prefix comes from the first line,
;; see if it seems reasonable to use for all lines.
;; If not, replace it with whitespace.
(if (or (and first-line-regexp
(string-match first-line-regexp
first-line-prefix))
(and comment-start-skip
(string-match comment-start-skip
first-line-prefix)))
first-line-prefix
(make-string (string-width first-line-prefix) ?\s))
anyone any idea what I could be doing wrong?
