Iterate over color scheme in ConTeXt/Lua
Hi, list. I've got a question about color schemes in ConTeXt What if want to access the entire list of, say, xwi: for k,v in pairs(xwi_list) do --Supposing xwi_list is contains xwi colors (whatever action I want) end So far I'm manually setting colors from colo-imp-xwi.mkiv, but I suspect there's a less manual method. Thank you in advance. Regards, Jairo :)
On 7/12/2020 9:58 PM, Jairo A. del Rio wrote:
Hi, list. I've got a question about color schemes in ConTeXt
What if want to access the entire list of, say, xwi:
for k,v in pairs(xwi_list) do --Supposing xwi_list is contains xwi colors (whatever action I want) end
So far I'm manually setting colors from colo-imp-xwi.mkiv, but I suspect there's a less manual method. Thank you in advance. You get a list of defined color names in 'xwi' with:
attributes.colors.setlist("xwi") Anyway, "whatever action I want" is somewhat vague, for instance you the vebose spec with: attributes.colors.values[name] but there's more. There might be better ways to achieve what you need it for. Here is a nostalgic mkii accessor for such a list (color support is a real old feature and conceptually hasn't changed that much): \def\WhateverActionIWant#1{#1\par} \settrue\collectcolorsinlist \setupcolor[xwi] \processcommacommand[\colorlist]\WhateverActionIWant but you probably don't want to catch up on that. 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 -----------------------------------------------------------------
El dom., 12 de jul. de 2020 a la(s) 16:20, Hans Hagen (j.hagen@xs4all.nl) escribió:
You get a list of defined color names in 'xwi' with:
attributes.colors.setlist("xwi")
Nice, it works! I note the first method only works when \usecolors[xwi] is present; otherwise, it prints an interesting "themaintextcolor". Here is a nostalgic mkii accessor for such a list (color support is a
real old feature and conceptually hasn't changed that much):
\def\WhateverActionIWant#1{#1\par}
\settrue\collectcolorsinlist \setupcolor[xwi]
\processcommacommand[\colorlist]\WhateverActionIWant
but you probably don't want to catch up on that.
It doesn't work in Mark IV (\colorlist is undefined). Maybe I'm too young, but Mark II was already frozen when I was a teenager, so I'm not sure I want to try it now. Thanks, Hans! Cordially, Jairo :)
El dom., 12 de jul. de 2020 a la(s) 16:20, Hans Hagen (j.hagen@xs4all.nl mailto:j.hagen@xs4all.nl) escribió:
You get a list of defined color names in 'xwi' with:
attributes.colors.setlist("xwi")
Nice, it works! I note the first method only works when \usecolors[xwi] is present; otherwise, it prints an interesting "themaintextcolor".
Here is a nostalgic mkii accessor for such a list (color support is a real old feature and conceptually hasn't changed that much):
\def\WhateverActionIWant#1{#1\par}
\settrue\collectcolorsinlist \setupcolor[xwi]
\processcommacommand[\colorlist]\WhateverActionIWant
but you probably don't want to catch up on that.
It doesn't work in Mark IV (\colorlist is undefined). Maybe I'm too young, but Mark II was already frozen when I was a teenager, so I'm not sure I want to try it now. Thanks, Hans! It's low level mkii, never meant for usage outside core code (in this case in mkii it is used for typesetting color overviews); mkiv still has
On 7/12/2020 11:54 PM, Jairo A. del Rio wrote: the same high level commands but different low level ... nothing to worry about. The only high level commands that were dropped in mkiv were those dealing with obsolete technologies, encodings and such) 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 -----------------------------------------------------------------
participants (2)
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Hans Hagen -
Jairo A. del Rio