On 04/27/2017 10:41 AM, Benno Schulenberg wrote:
If the note is pedantic, then please leave it out.

OK, done in the attached.


I suggest to split up the message again and to properly pluralize it.

That would make it harder to translate, no? The idea was to simplify the translator's jobs by using SI units.

Instead, how about if we remove the units from the string to be translated? That way, translators won't need to worry about whether to translate the units. Plus, there won't be any change to the output format in the C locale. I did that in the attached.

If the entirety of that output can have a varying width
that sometimes gets shorter than it was before, then dd
should first print that output to a string, record its
longest length, and then always fill up the string with
spaces to that length.

dd already does that. This approach does not work in general, though, due to the difference between strlen and column counts. But as its problems seem to not occur in practice, the attached patch removes the confusing translator note about this.
From 2320c0a8d435c9b1bd88e665793c4e9761a50e06 Mon Sep 17 00:00:00 2001
From: Paul Eggert <[email protected]>
Date: Thu, 27 Apr 2017 14:49:00 -0700
Subject: [PATCH] =?UTF-8?q?dd:=20simplify=20translator=E2=80=99s=20jobs?=
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

* src/dd.c (print_xfer_stats): Format the SI units directly,
without translating them, to simplify the translators’ jobs.
See Bug#26621.
---
 src/dd.c | 48 ++++++++++++++++++++----------------------------
 1 file changed, 20 insertions(+), 28 deletions(-)

diff --git a/src/dd.c b/src/dd.c
index 119f307..99ca1fa 100644
--- a/src/dd.c
+++ b/src/dd.c
@@ -768,7 +768,8 @@ static void
 print_xfer_stats (xtime_t progress_time)
 {
   xtime_t now = progress_time ? progress_time : gethrxtime ();
-  char hbuf[3][LONGEST_HUMAN_READABLE + 1];
+  static char const slash_s[] = "/s";
+  char hbuf[3][LONGEST_HUMAN_READABLE + sizeof slash_s];
   double delta_s;
   char const *bytes_per_second;
   char const *si = human_readable (w_bytes, hbuf[0], human_opts, 1, 1);
@@ -777,19 +778,23 @@ print_xfer_stats (xtime_t progress_time)
 
   /* Use integer arithmetic to compute the transfer rate,
      since that makes it easy to use SI abbreviations.  */
+  char *bpsbuf = hbuf[2];
+  int bpsbufsize = sizeof hbuf[2];
   if (start_time < now)
     {
       double XTIME_PRECISIONe0 = XTIME_PRECISION;
       uintmax_t delta_xtime = now;
       delta_xtime -= start_time;
       delta_s = delta_xtime / XTIME_PRECISIONe0;
-      bytes_per_second = human_readable (w_bytes, hbuf[2], human_opts,
+      bytes_per_second = human_readable (w_bytes, bpsbuf, human_opts,
                                          XTIME_PRECISION, delta_xtime);
+      strcat (bytes_per_second - bpsbuf + bpsbuf, slash_s);
     }
   else
     {
       delta_s = 0;
-      bytes_per_second = _("Infinity B");
+      snprintf (bpsbuf, bpsbufsize, "%s B/s", _("Infinity"));
+      bytes_per_second = bpsbuf;
     }
 
   if (progress_time)
@@ -800,46 +805,33 @@ print_xfer_stats (xtime_t progress_time)
      displaying any subsecond jitter.  Use default precision with %g
      otherwise, as this provides more-useful output then.  With long
      transfers %g can generate a number with an exponent; that is OK.  */
-  char delta_s_buf[20];
+  char delta_s_buf[24];
   snprintf (delta_s_buf, sizeof delta_s_buf,
-            progress_time ? "%.0f" : "%g", delta_s);
-
-  /* TRANSLATORS: Because SI symbols should be the same in all
-     languages, the instances of "s" in the following formats, which
-     are the SI symbol "s" (meaning second), should not be translated.
-     The strings use SI symbols for better internationalization even
-     though they may be a bit more confusing in English.
-
-     These strings should be translated so that a new output line B
-     completely overwrites an old line A that is already present on
-     the screen, if (sB < sA ? sA - sB : 0) spaces are appended to B,
-     where sA == strlen (A) and sB == strlen (B).  For example, in a
-     UTF-8 locale where A is "8 bajtů zkopírováno, 1 s, 0 kB/s" (32
-     columns, strlen 35) and B is "19979567104 bajtů (20 GB, 19 GiB)
-     zkopírováno, 2 s, 10.0 GB/s" (61 columns, strlen 64), the
-     translation is OK because A looks shorter than B (32 vs 61
-     columns) even when no spaces are appended.  */
+            progress_time ? "%.0f s" : "%g s", delta_s);
 
   int stats_len
     = (abbreviation_lacks_prefix (si)
        ? fprintf (stderr,
-                  /* TRANSLATORS: See comments in dd.c's print_xfer_stats.  */
-                  ngettext ("%"PRIuMAX" byte copied, %s s, %s/s",
-                            "%"PRIuMAX" bytes copied, %s s, %s/s",
+                  ngettext ("%"PRIuMAX" byte copied, %s, %s",
+                            "%"PRIuMAX" bytes copied, %s, %s",
                             select_plural (w_bytes)),
                   w_bytes, delta_s_buf, bytes_per_second)
        : abbreviation_lacks_prefix (iec)
        ? fprintf (stderr,
-                  /* TRANSLATORS: See comments in dd.c's print_xfer_stats.  */
-                  _("%"PRIuMAX" bytes (%s) copied, %s s, %s/s"),
+                  _("%"PRIuMAX" bytes (%s) copied, %s, %s"),
                   w_bytes, si, delta_s_buf, bytes_per_second)
        : fprintf (stderr,
-                  /* TRANSLATORS: See comments in dd.c's print_xfer_stats.  */
-                  _("%"PRIuMAX" bytes (%s, %s) copied, %s s, %s/s"),
+                  _("%"PRIuMAX" bytes (%s, %s) copied, %s, %s"),
                   w_bytes, si, iec, delta_s_buf, bytes_per_second));
 
   if (progress_time)
     {
+      /* Erase any trailing junk on the output line by outputting
+         spaces.  In theory this could glitch the display because the
+         formatted translation of a line describing a larger file
+         could consume fewer screen columns than the strlen difference
+         from the previously formatted translation.  In practice this
+         does not seem to be a problem.  */
       if (0 <= stats_len && stats_len < progress_len)
         fprintf (stderr, "%*s", progress_len - stats_len, "");
       progress_len = stats_len;
-- 
2.9.3

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