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bug#27847: 26.0.50; mode-line-percent-position: line-based instead of ch


From: Alexis
Subject: bug#27847: 26.0.50; mode-line-percent-position: line-based instead of char-based (optionally)
Date: Fri, 28 Jul 2017 18:07:45 +1000
User-agent: mu4e 0.9.19; emacs 25.2.1


Eli Zaretskii <address@hidden> writes:

From: Alexis <address@hidden>
Cc: Eli Zaretskii <address@hidden>, address@hidden
Date: Fri, 28 Jul 2017 12:44:12 +1000

As a data point, i have this as part of my `mode-line-format`
setup:

    '(:eval
      (let ((buffer-line-count (count-lines (point-min)
      (point-max))))
        (number-to-string
         (round
          (* 100 (/
                  (float (count-lines 1 (point)))
                  (if (equal 0 buffer-line-count)
                      1
                    buffer-line-count)))))))
    "%%"

which gives me at least a rough percentage (i.e. 'good enough' for
my needs), and i've not noticed any slowdown as a result.

How large are the files you usually edit?

Good point; usually not that large, maybe only a few thousand lines at
most. So i just tried opening xdisp.c, and there's certainly some
movement lag there. Not unusably so for me, but i can imagine it would
be for others. This is on a Core i5-6200U running Debian x86_64.


Alexis.





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