Re: [NTG-context] [fontloader/old] mixed substitution / ligatures feature

2015-12-20 Thread Philipp Gesang 
·
> On 12/18/2015 7:34 AM, Philipp Gesang wrote:
> > in the old loader, defining a feature containing mixed ligature /
> > substitution causes a crash. Here’s an example:
> >
> >  \enabletrackers [otf.loading]
> >  \startluacode
> >fonts.handlers.otf.addfeature ("dunno", {
> >{
> >type  = "substitution",
> >data  = { [0x0022] = 0x201D },
> >prepend   = true,
> >},
> >{
> >type = "ligature",
> >data = { [0x2013] = {0x002D, 0x002D} },
> >prepend  = true,
> >},
> >})
> >fonts.handlers.otf.features.register {
> >name= "dunno",
> >description = "bug demo",
> >}
> >  \stopluacode
> >
> >  \definefontfeature [myfeat] [default] [dunno=yes,liga=yes,mode=node]
> >
> >  \definefont [somefont] [file:cmunrm.otf*myfeat]
> >  \starttext
> >\somefont foo bar " baz
> >  \stoptext
> >
> > This crashes in font-otn on account of a number being indexed.
> > This used to work -- anything that can be done about it?
> 
> i'll see if i can fix it but don't expect all upcoming features in the 
> new loader to work in the old one

Thanks for fixing the crash. However, the substitution doesn’t
work as defined, even if there’s no ligature. It does work with
the TL 2015 version. As it doesn’t seem work with the new loader
either I guess this is related to the “em-dashes not working …”
issue :)

Best,
Philipp



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Re: [NTG-context] [fontloader/old] mixed substitution / ligatures feature

2015-12-18 Thread Hans Hagen 

On 12/18/2015 7:34 AM, Philipp Gesang wrote:

Hi Hans,

in the old loader, defining a feature containing mixed ligature /
substitution causes a crash. Here’s an example:

 \enabletrackers [otf.loading]
 \startluacode
   fonts.handlers.otf.addfeature ("dunno", {
   {
   type  = "substitution",
   data  = { [0x0022] = 0x201D },
   prepend   = true,
   },
   {
   type = "ligature",
   data = { [0x2013] = {0x002D, 0x002D} },
   prepend  = true,
   },
   })
   fonts.handlers.otf.features.register {
   name= "dunno",
   description = "bug demo",
   }
 \stopluacode

 \definefontfeature [myfeat] [default] [dunno=yes,liga=yes,mode=node]

 \definefont [somefont] [file:cmunrm.otf*myfeat]
 \starttext
   \somefont foo bar " baz
 \stoptext

This crashes in font-otn on account of a number being indexed.
This used to work -- anything that can be done about it?


i'll see if i can fix it but don't expect all upcoming features in the 
new loader to work in the old one


Hans


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  Ridderstraat 27 | 8061 GH Hasselt | The Netherlands
tel: 038 477 53 69 | voip: 087 875 68 74 | www.pragma-ade.com
 | www.pragma-pod.nl
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[NTG-context] [fontloader/old] mixed substitution / ligatures feature

2015-12-17 Thread Philipp Gesang 
Hi Hans,

in the old loader, defining a feature containing mixed ligature /
substitution causes a crash. Here’s an example:

\enabletrackers [otf.loading]
\startluacode
  fonts.handlers.otf.addfeature ("dunno", {
  {
  type  = "substitution",
  data  = { [0x0022] = 0x201D },
  prepend   = true,
  },
  {
  type = "ligature",
  data = { [0x2013] = {0x002D, 0x002D} },
  prepend  = true,
  },
  })
  fonts.handlers.otf.features.register {
  name= "dunno",
  description = "bug demo",
  }
\stopluacode

\definefontfeature [myfeat] [default] [dunno=yes,liga=yes,mode=node]

\definefont [somefont] [file:cmunrm.otf*myfeat]
\starttext
  \somefont foo bar " baz
\stoptext

This crashes in font-otn on account of a number being indexed.
This used to work -- anything that can be done about it?

Best,
Philipp




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