GNU bug report logs - #6890
23.1; makefile-fill-paragraph doesn't leave space for backslashes

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From: Kirk Kelsey <kirk.kelsey <at> 0x4b.net>
To: 6890 <at> debbugs.gnu.org
Subject: bug#6890: 23.1; makefile-fill-paragraph doesn't leave space for backslashes
Date: Fri, 20 Aug 2010 17:26:28 -0400

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Using makefile-fill-paragraph on text in which some lines fit precisely
within
the fill-column will fill past the fill-column. The problem stems from the
direct use of fill-paragraph-function followed by makefile-backslash-region,
which inserts more text on each line. I think this can be solved by
decrementing fill-column before invoking fill-paragraph-function, and I've
included a patch to that effect.

Thanks,
Kirk


--- make-mode.el 2010-08-20 16:51:46.253395990 -0400
+++ make-mode-patch.el 2010-08-20 16:53:08.985392193 -0400
@@ -1323,7 +1323,9 @@
  (save-restriction
   (narrow-to-region beginning end)
   (makefile-backslash-region (point-min) (point-max) t)
-  (let ((fill-paragraph-function nil))
+  (let ((fill-paragraph-function nil)
+                ;; adjust fill-column to allow space for the backslash
+                (fill-column (- fill-column 1)))
     (fill-paragraph nil))
   (makefile-backslash-region (point-min) (point-max) nil)
   (goto-char (point-max))

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