264946 - en-dash and em-dash too narrow

Status: RESOLVED FIXED

(Core :: Layout: Text and Fonts, defect)

Description

[Felix Wiemann]

User-Agent:       Mozilla/5.0 (X11; U; Linux i686; rv:1.7.3) Gecko/20041017 Firefox/0.10.1
Build Identifier: Mozilla/5.0 (X11; U; Linux i686; rv:1.7.3) Gecko/20041017 Firefox/0.10.1

en-dash and em-dash are both rendered too narrow.  Look at:

-<br>&ndash;<br>&mdash;

The second dash (&ndash;) should be twice as wide as the first dash, but
it's rendered like a normal hyphen.

The third dash (&mdash;) should be four times as wide as the first dash, but
it's rendered like an en-dash.

Reproducible: Always
Steps to Reproduce:

Comment 1

[Simon Montagu :smontagu]

Do you have a font with the en dash and em dash? The transliterator
(http://lxr.mozilla.org/seamonkey/source/intl/unicharutil/tables/transliterate.properties#44)
replaces en-dash by "-" and em-dash by "--". It might be better to use "--" and
"----", or "--" and "---".

Comment 2

[Felix Wiemann]

I'm not entirely sure if my font has an en-dash and em-dash.

From the transliterator document it looks like an em-dash would be rendered as
two separate normal dashes, which is not the case on my system.

> It might be better to use "--" and "----", or "--" and "---".

Definitively.  I'd suggest "--" and "---", because four dashes looks a little
bit too wide (there is some space between the dashes, after all) and I've seen
three dashes more often.

Comment 3

[Simon Montagu :smontagu]

Attachment: patch to gentransliterate.pl

Regenerating transliterate.properties with this change adds lots of lines,
including many outside the BMP. Jungshik, do you know if the transliterator
will handle these characters correctly, or should I use an older version of
UnicodeData.txt for now?

Comment 4

[Simon Montagu :smontagu]

Fixed by bug 288137