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Dumb question about ligatures

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Bruce Horrocks

21 Sep 2021 21 Sep '21

1:47 a.m.

I'm using a TTF file that has no ligature capability as a built-in feature. It does however have glyphs for fi and fl but ConTeXt isn't substituting them. So the question is: what do I need to do to persuade ConTeXt to do fi & fl ligature substitution? — Bruce Horrocks Hampshire, UK

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Bruce Horrocks

1 Oct 1 Oct

10:35 p.m.

On 21 Sep 2021, at 02:47, Bruce Horrocks via ntg-context wrote:

I'm using a TTF file that has no ligature capability as a built-in feature. It does however have glyphs for fi and fl but ConTeXt isn't substituting them.

So the question is: what do I need to do to persuade ConTeXt to do fi & fl ligature substitution?

Any suggestions please? Is a font features file the 'right' way? I would have thought that there was a more traditional solution — Bruce Horrocks Hampshire, UK

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Hans Hagen

11:46 p.m.

On 10/2/2021 12:35 AM, Bruce Horrocks via ntg-context wrote:

On 21 Sep 2021, at 02:47, Bruce Horrocks via ntg-context wrote:

...
I'm using a TTF file that has no ligature capability as a built-in feature. It does however have glyphs for fi and fl but ConTeXt isn't substituting them.

So the question is: what do I need to do to persuade ConTeXt to do fi & fl ligature substitution?

Any suggestions please? Is a font features file the 'right' way? I would have thought that there was a more traditional solution you can write your own feature (examplex in test suite and manuals) where you map f + f onto ff

Hans ----------------------------------------------------------------- Hans Hagen | PRAGMA ADE Ridderstraat 27 | 8061 GH Hasselt | The Netherlands tel: 038 477 53 69 | www.pragma-ade.nl | www.pragma-pod.nl -----------------------------------------------------------------

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Bruce Horrocks

2 Oct 2 Oct

11:34 p.m.

On 2 Oct 2021, at 00:46, Hans Hagen wrote:

On 10/2/2021 12:35 AM, Bruce Horrocks via ntg-context wrote:

...
On 21 Sep 2021, at 02:47, Bruce Horrocks via ntg-context wrote:

...
I'm using a TTF file that has no ligature capability as a built-in feature. It does however have glyphs for fi and fl but ConTeXt isn't substituting them.

So the question is: what do I need to do to persuade ConTeXt to do fi & fl ligature substitution?

Any suggestions please? Is a font features file the 'right' way? I would have thought that there was a more traditional solution you can write your own feature (examplex in test suite and manuals) where you map f + f onto ff

Thanks Hans - I keep forgetting about the test suite. For the benefit of those coming here via the mail archive, I found what I needed in the cont-tst.zip test suite in the file fonts/extensions-001.tex http://www.pragma-ade.com/context/latest/cont-tst.zip Now my problem is that the font only has ligatures for fi and fl which is making my life di-ffi-cult. <groan> — Bruce Horrocks Hampshire, UK

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Hans Hagen

3 Oct 3 Oct

9:33 a.m.

On 10/3/2021 1:34 AM, Bruce Horrocks via ntg-context wrote:

On 2 Oct 2021, at 00:46, Hans Hagen wrote:

...
On 10/2/2021 12:35 AM, Bruce Horrocks via ntg-context wrote:

...
On 21 Sep 2021, at 02:47, Bruce Horrocks via ntg-context wrote:

...
I'm using a TTF file that has no ligature capability as a built-in feature. It does however have glyphs for fi and fl but ConTeXt isn't substituting them.

So the question is: what do I need to do to persuade ConTeXt to do fi & fl ligature substitution?

Any suggestions please? Is a font features file the 'right' way? I would have thought that there was a more traditional solution you can write your own feature (examplex in test suite and manuals) where you map f + f onto ff

Thanks Hans - I keep forgetting about the test suite.

For the benefit of those coming here via the mail archive, I found what I needed in the cont-tst.zip test suite in the file fonts/extensions-001.tex http://www.pragma-ade.com/context/latest/cont-tst.zip

Now my problem is that the font only has ligatures for fi and fl which is making my life di-ffi-cult. <groan> Then forget abnout the ligatures ... these two were probably only added because of 'habbit'. Most people won't notice.

Hans ----------------------------------------------------------------- Hans Hagen | PRAGMA ADE Ridderstraat 27 | 8061 GH Hasselt | The Netherlands tel: 038 477 53 69 | www.pragma-ade.nl | www.pragma-pod.nl -----------------------------------------------------------------

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