Why does LibreOffice replace Alegreya Sans' curly quote with its regular quote?

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#1

I am writing a document in the font Alegreya Sans. When I enter an apostrophe, it at first shows up as a curly apostrophe (U+2019 RIGHT SINGLE QUOTATION MARK). But as soon as I enter another character (as in a contraction), the apostrophe changes to a straight quote (U+0027 APOSTROPHE). This can only be saved by entering the symbol manually via the “Insert Special Characters” dialog.

This does not occur with any other fonts, only Alegreya Sans. I don’t believe it’s a bug in the font; the font’s straight and curly quotes are at the correct Unicode points.

#2

Confirmed - I’ve passed this message along to Huerta Tipográfica, and will update if there’s any reply. It looks like @oweng has nailed the source of the problem, though.

#3

This is possibly due to the font itself (from examining the Regular weight) containing a replacement table (39) lookup of:

Base Glyph Name: quoteright (U+2019)

Replacement Glyph Name: quotesingle (U+0027)

#4

Before I read your answer, I had contacted Huerta Tipografica, and they had confirmed this. Is there any way to disable this feature in LibreOffice?

#5

The replacement of U+0027 with U+2019 is standard word processor behaviour. The fact that this is not working for this particular font, would suggest to me that the font-level replacement overrides the application-level replacement. Sounds like that font has been designed to behave differently for a specific reason.

#6

That’s what I’m saying—Huerta Tipografica’s designer said that he preferred it that way, and that I could fix the problem by disabling the OpenType feature “Standard Ligatures”, and I’m asking how to do that.

#7

Oh sorry, I misunderstood. I think bug fdo#58941, which you point out in this thread, is the related enhancement to get this functionality exposed to the user.

#8

Juan Pablo del Peral of Huerta Tipografica just emailed me saying that he’s updated the font to remove this replacement table. So, problem solved.

#9

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