Bug 85574

Summary:	ffi ligature not auto-substituted
Product:	DejaVu	Reporter:	Axel Niedenhoff <axel.niedenhoff>
Component:	Serif	Assignee:	Deja Vu bugs <dejavu-bugs>
Status:	NEW ---	QA Contact:
Severity:	normal
Priority:	medium
Version:	unspecified
Hardware:	x86-64 (AMD64)
OS:	Linux (All)
Whiteboard:
i915 platform:		i915 features:

Description Axel Niedenhoff 2014-10-28 21:09:38 UTC

The letter combination ffi should be turned automatically into the ffi ligature, which does not happen with version 2.34 of the font.

I tested with these applications:

LibreOffice Writer 4.4.2.2
LuaTeX beta-0.79.1
XeTeX 3.14159265-2.6-0.99991

It works fine for DejaVu Sans.

Steps to reproduce:

* In LibreOffice Writer, select DejaVu Serif (24pt to see the effect clearly)
* Type “official”

You will see that the ff ligature gets applied, but the i stays extra.

Comment 1 stuart.salzer 2018-08-22 16:28:41 UTC

I encountered this same problem in ConTeXt, and originally reported here
<http://tracker.luatex.org/view.php?id=1006>

I solved the problem by editing the font as such

On my mac I open DejaVuSerif.sft with FontForge
From menu select Element > Font info
From side bar select Lookups
Select 'liga' Standard Ligatures - Without dotless i
click [UP] button to move it above 'liga' Standard Ligatures
Click [OK]
And compile the font.

copied the font to
/usr/local/texlive/2018/texmf-dist/fonts/truetype/public/dejavu
and now ffi ligatures work.

This was needed for all 8 DejaVuSerif* fonts.

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