Hi all, today, I was struggling with a fallback font I had defined, and I discovered that the key "check" doesn't work as I expected. Here's a small example: \definefallbackfamily [presentation] [serif] [TeXGyreTermes] [range=0x2329-0x232A,check=yes] \definefontfamily [presentation] [serif] [AntykwaTorunska] \setupbodyfont [presentation,12pt] \starttext (〈P〉) \stoptext With this input, the two characters 〈 and 〉 are not typeset; in the log, I find fonts > checking > char 〈 (U+02329) in font 'AntykwaTorunska-Regular' with id 1: missing fonts > checking > char 〉 (U+0232A) in font 'AntykwaTorunska-Regular' with id 1: missing If I have "check=no," the characters are taken from termes and replaced. I was under the impression that "check" should, well, check if the characters are not in the main font and fall back to the fallback font if they are not, but this doesn't appear to be the case. So what does "check" do? Or is this a bug? Have a great weekend Thomas
On 4/22/23 18:05, Thomas A. Schmitz via ntg-context wrote:
Hi all,
today, I was struggling with a fallback font I had defined, and I discovered that the key "check" doesn't work as I expected. [...] If I have "check=no," the characters are taken from termes and replaced. I was under the impression that "check" should, well, check if the characters are not in the main font and fall back to the fallback font if they are not, but this doesn't appear to be the case.
Hi Thomas, I don’t know what check does (maybe just check?), but the standard behaviour with \definefallbackfamily is only to fall back when the character is missing from the main font. To force all characters from the range in the fallback font, "force=yes" is required. Here you have a minimal sample (which doesn‘t use "preset=range:greek"), adding "force=yes" gets all Greek glyphs from GFS Heraklit: \definefallbackfamily [presentation] [serif] [GFSHeraklit] [range={greekandcoptic, greekextended}] \definefontfamily [presentation] [serif] [TeXGyrePagella] \setupbodyfont [presentation,12pt] \starttext Pπμᾷσδ \stoptext Just in case it might help, Pablo
Thank you, Pablo, but that doesn't help. I know how to use fallback fonts. I was wondering if the check key is working as it should. Thomas On 4/22/23 20:33, Pablo Rodriguez via ntg-context wrote:
Hi Thomas,
I don’t know what check does (maybe just check?), but the standard behaviour with \definefallbackfamily is only to fall back when the character is missing from the main font.
To force all characters from the range in the fallback font, "force=yes" is required.
Here you have a minimal sample (which doesn‘t use "preset=range:greek"), adding "force=yes" gets all Greek glyphs from GFS Heraklit:
\definefallbackfamily [presentation] [serif] [GFSHeraklit] [range={greekandcoptic, greekextended}] \definefontfamily [presentation] [serif] [TeXGyrePagella] \setupbodyfont [presentation,12pt]
\starttext Pπμᾷσδ \stoptext
Just in case it might help,
-- Prof. Dr. Thomas A. Schmitz Institut für Klassische und Romanische Philologie Universität Bonn Am Hof 1e 53113 Bonn http://www.philologie.uni-bonn.de/de/personal/schmitz
I believe it's a bug. https://github.com/contextgarden/context/blob/d025bcdf995be6951f69fed6869048... the newchar[] table, which should contain all chars supported by the fallback termes font if I'm not mistaken, turns out to have only 392 chars within 0x20-0x30C, far away from 0x2329-0x232A. On Sun, 23 Apr 2023 at 03:26, Thomas A. Schmitz via ntg-context < ntg-context@ntg.nl> wrote:
Thank you, Pablo, but that doesn't help. I know how to use fallback fonts. I was wondering if the check key is working as it should.
Thomas
On 4/22/23 20:33, Pablo Rodriguez via ntg-context wrote:
Hi Thomas,
I don’t know what check does (maybe just check?), but the standard behaviour with \definefallbackfamily is only to fall back when the character is missing from the main font.
To force all characters from the range in the fallback font, "force=yes" is required.
Here you have a minimal sample (which doesn‘t use "preset=range:greek"), adding "force=yes" gets all Greek glyphs from GFS Heraklit:
\definefallbackfamily [presentation] [serif] [GFSHeraklit] [range={greekandcoptic, greekextended}] \definefontfamily [presentation] [serif] [TeXGyrePagella] \setupbodyfont [presentation,12pt]
\starttext Pπμᾷσδ \stoptext
Just in case it might help,
-- Prof. Dr. Thomas A. Schmitz Institut für Klassische und Romanische Philologie Universität Bonn Am Hof 1e 53113 Bonn http://www.philologie.uni-bonn.de/de/personal/schmitz
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participants (3)
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Pablo Rodriguez -
Sylvain Hubert -
Thomas A. Schmitz