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[PATCH v3 2/2] blame: use a helper to get suitable blame_date_width

From
Jiang Xin <worldhello.net@gmail.com>
Date
Apr 21, 2014, 06:02 UTC
Message-ID
<17454bdfbd4e0e1516a64f75deabddb427792e99.1398059411.git.worldhello.net@gmail.com>
In-Reply-To
<cover.1398059411.git.worldhello.net@gmail.com>

When show date in relative date format for git-blame, the max display width of datetime is set as the length of the string "Thu Oct 19 16:00:04 2006 -0700" (30 characters long). But actually the max width for C locale is only 22 (the length of string "x years, xx months ago"). And for other locale, it maybe smaller. E.g. For Chinese locale, only needs a half (16-character width).

Add a helper function date_relative_maxwidth() to date.c, which returns the suitable display width for the relative date field in different locale.

Suggested-by: Junio C Hamano <gitster@pobox.com>
Signed-off-by: Jiang Xin <worldhello.net@gmail.com>
---
 builtin/blame.c | 64 ++++++++++++++++++++++++++++++++++++++++++++++++++++++++-
 1 file changed, 63 insertions(+), 1 deletion(-)
diff --git a/builtin/blame.c b/builtin/blame.c
index 35e95db..478f739 100644
--- a/builtin/blame.c
+++ b/builtin/blame.c
@@ -2229,6 +2229,67 @@ static int blame_move_callback(const struct option *option, const char *arg, int
 	return 0;
 }
 
+static int date_relative_maxwidth(void)
+{
+	struct strbuf buf = STRBUF_INIT, years_sb = STRBUF_INIT;
+	static int maxwidth = 0;
+	int width;
+
+	if (maxwidth)
+		return maxwidth;
+
+	strbuf_addf(&buf, _("in the future"));
+	maxwidth = utf8_strwidth(buf.buf);
+
+	strbuf_reset(&buf);
+	strbuf_addf(&buf, Q_("%lu second ago", "%lu seconds ago", 89L), 89L);
+	width = utf8_strwidth(buf.buf);
+	maxwidth = (maxwidth < width) ? width : maxwidth;
+
+	strbuf_reset(&buf);
+	strbuf_addf(&buf, Q_("%lu minute ago", "%lu minutes ago", 89L), 89L);
+	width = utf8_strwidth(buf.buf);
+	maxwidth = (maxwidth < width) ? width : maxwidth;
+
+	strbuf_reset(&buf);
+	strbuf_addf(&buf, Q_("%lu hour ago", "%lu hours ago", 35L), 35L);
+	width = utf8_strwidth(buf.buf);
+	maxwidth = (maxwidth < width) ? width : maxwidth;
+
+	strbuf_reset(&buf);
+	strbuf_addf(&buf, Q_("%lu day ago", "%lu days ago", 13L), 13L);
+	width = utf8_strwidth(buf.buf);
+	maxwidth = (maxwidth < width) ? width : maxwidth;
+
+	strbuf_reset(&buf);
+	strbuf_addf(&buf, Q_("%lu week ago", "%lu weeks ago", 10L), 10L);
+	width = utf8_strwidth(buf.buf);
+	maxwidth = (maxwidth < width) ? width : maxwidth;
+
+	strbuf_reset(&buf);
+	strbuf_addf(&buf, Q_("%lu month ago", "%lu months ago", 12L), 12L);
+	width = utf8_strwidth(buf.buf);
+	maxwidth = (maxwidth < width) ? width : maxwidth;
+
+	strbuf_addf(&years_sb, Q_("%lu year", "%lu years", 4L), 4L);
+	strbuf_reset(&buf);
+	strbuf_addf(&buf,
+		Q_("%s, %lu month ago", "%s, %lu months ago", 11L),
+		years_sb.buf, 11L);
+	width = utf8_strwidth(buf.buf);
+	maxwidth = (maxwidth < width) ? width : maxwidth;
+
+	strbuf_reset(&buf);
+	strbuf_addf(&buf, Q_("%lu year ago", "%lu years ago", 9999L), 9999L);
+	width = utf8_strwidth(buf.buf);
+	maxwidth = (maxwidth < width) ? width : maxwidth;
+
+	strbuf_release(&years_sb);
+	strbuf_release(&buf);
+
+	return maxwidth;
+}
+
 int cmd_blame(int argc, const char **argv, const char *prefix)
 {
 	struct rev_info revs;
@@ -2338,7 +2399,8 @@ parse_done:
 		blame_date_width = sizeof("2006-10-19");
 		break;
 	case DATE_RELATIVE:
-		/* "normal" is used as the fallback for "relative" */
+		blame_date_width = date_relative_maxwidth() + 1; /* add the null */
+		break;
 	case DATE_LOCAL:
 	case DATE_NORMAL:
 		blame_date_width = sizeof("Thu Oct 19 16:00:04 2006 -0700");
-- 
1.9.2.476.ga74def0
Previous: Jiang XinNext: Junio C Hamano
Message 12 of 20 in “blame: add correct paddings in time_buf for align”
  1. blame: add correct paddings in time_buf for alignJiang Xin, Apr 18, 2014
  2. Duy NguyenApr 18, 2014
  3. Junio C HamanoApr 18, 2014
  4. Duy NguyenApr 19, 2014
  5. 0/2 peroper align of datetime filed of git-blameJiang Xin, Apr 20, 2014
  6. 1/2 bugfix: fix broken time_buf paddings for git-blameJiang Xin, Apr 20, 2014
  7. Eric SunshineApr 20, 2014
  8. 2/2 blame: use different blame_date_width for different localeJiang Xin, Apr 20, 2014
  9. Junio C HamanoApr 20, 2014
  10. 0/2 peroper align of datetime filed of git-blameJiang Xin, Apr 21, 2014
  11. 1/2 bugfix: fix broken time_buf paddings for git-blameJiang Xin, Apr 21, 2014
  12. 2/2 blame: use a helper to get suitable blame_date_widthJiang Xin, Apr 21, 2014
  13. Junio C HamanoApr 21, 2014
  14. Junio C HamanoApr 21, 2014
  15. Jiang XinApr 22, 2014
  16. 0/2 peroper align of datetime filed of git-blameJiang Xin, Apr 22, 2014
  17. 1/2 bugfix: fix broken time_buf paddings for git-blameJiang Xin, Apr 22, 2014
  18. 2/2 blame: dynamic blame_date_width for different localesJiang Xin, Apr 22, 2014
  19. David KastrupApr 22, 2014
  20. Jiang XinApr 22, 2014

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