277465 - Bad display of U+2025 (Two Dot Leader) in Firefox 1.0 for Mac OS X.

Status: RESOLVED INVALID

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

Description

[Vic Norton]

User-Agent:       Mozilla/5.0 (Macintosh; U; PPC Mac OS X Mach-O; en-US; rv:1.7.5) Gecko/20041107 Firefox/1.0
Build Identifier: Mozilla/5.0 (Macintosh; U; PPC Mac OS X Mach-O; en-US; rv:1.7.5) Gecko/20041107 Firefox/1.0

Look at the page "http://www.dacor.net/norton/misc/characters.html" with Firefox
1.0 for Mac OS X. The TWO DOT LEADER character (x2025) is not displayed
properly. The dots are supposed to be at the bottom of the line, not at the top.
Safari (Mac) and Firefox (Windows) have no trouble displaying the TWO DOT LEADER
correctly.


Reproducible: Always

Steps to Reproduce:
1. Look at http://www.dacor.net/norton/misc/characters.html with Firefox Mac.
2.
3.

Comment 1

[Frankie]

I didn't see any dupes for x2025, but there may be a more general UTF-8 bug that
already covers this.

Also, someone should test in other Moz versions. It's supposed to be 2/3rds of
an ellipsis.

Comment 2

[Jungshik Shin]

The difference between Safari and Mozilla is probably due to a difference in
fonts used by two browsers. (that is, it's not something related with UTF-8
handling.). Safari uses ATSUI APIs so that its rendering unit is a paragraph
while in case of Mozilla, it's , in a sense, a character (especially on Mac OS
X). This difference may make Mozilla pick different fonts for U+2024, U+2025 and
U+2026 while Safari uses a single font for all three of them and get them
rendered more consistently than Mozilla does. 


Note that U+2025 is usually rendered with two dots at the baseline. However, in
some fonts, the glyph for them is made of two dots way above the baseline. 

Comment 3

[Boris Zbarsky [:bzbarsky]]

Yep.  Depending on the font I pick, I can get the dots to be above or on the
baseline.  Sounds invalid.