* disabling specific ligatures @ 2017-03-21 16:44 Csikos Bela 2017-03-22 11:04 ` Hans Hagen 0 siblings, 1 reply; 7+ messages in thread From: Csikos Bela @ 2017-03-21 16:44 UTC (permalink / raw) To: ntg-context Dear context users: Is it possible to disable a specific ligature in a whole document in mkiv? I would like to disable fi ligature. Does it make a difference if I use a true type font installed on my system? Thank you in advance, bcsikos ___________________________________________________________________________________ If your question is of interest to others as well, please add an entry to the Wiki! maillist : ntg-context@ntg.nl / http://www.ntg.nl/mailman/listinfo/ntg-context webpage : http://www.pragma-ade.nl / http://context.aanhet.net archive : https://bitbucket.org/phg/context-mirror/commits/ wiki : http://contextgarden.net ___________________________________________________________________________________ ^ permalink raw reply [flat|nested] 7+ messages in thread
* Re: disabling specific ligatures 2017-03-21 16:44 disabling specific ligatures Csikos Bela @ 2017-03-22 11:04 ` Hans Hagen 0 siblings, 0 replies; 7+ messages in thread From: Hans Hagen @ 2017-03-22 11:04 UTC (permalink / raw) To: ntg-context On 3/21/2017 5:44 PM, Csikos Bela wrote: > Dear context users: > > Is it possible to disable a specific ligature in a whole document in mkiv? > I would like to disable fi ligature. > Does it make a difference if I use a true type font installed on my > system? normally that is done by setting a language feature in the font you can also cook up a new feature, like fonts.handlers.otf.addfeature { name = "nofiligature1", type = "chainsubstitution", nocheck = true, prepend = true, lookups = { { type = "multiple", data = { ["f"] = { "f", 0x200C }, -- ["i"] = { "i" }, }, }, }, data = { rules = { { -- current = { { "f" }, { "i" } }, -- lookups = { 1, 1 }, current = { { "f" } }, after = { { "i" } }, lookups = { 1 }, }, }, } } fonts.handlers.otf.addfeature { name = "nofiligature2", type = "chainsubstitution", nocheck = true, append = true, lookups = { { type = "ligature", data = { ["f"] = { "f", 0x200C }, }, }, -- { -- type = "substitution", -- data = { -- ["i"] = "i" -- }, -- }, }, data = { rules = { { -- current = { { "f" }, { 0x200C }, { "i" } }, -- lookups = { 1, 2 }, current = { { "f" }, { 0x200C } }, after = { { "i" } }, lookups = { 1 }, }, }, } } Here the two step approach is needed to make sure you get proper kerning (given that a font has it, e.g pagella has between fe but not between ffe so ...). Anyway, I've added a helper to the upcoming so that it's a bit easier: \blockligatures[fi,ff] \blockligatures[fl] \definefontfeature [default] [default] [blockligatures=yes] \setupbodyfont[pagella] The only thing you need to keep in mind is that the \blockligature commands have to come before fonts get defined (has to do with shared resources and optimizations and such) and of course that you need to enable the feature. 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 ----------------------------------------------------------------- ___________________________________________________________________________________ If your question is of interest to others as well, please add an entry to the Wiki! maillist : ntg-context@ntg.nl / http://www.ntg.nl/mailman/listinfo/ntg-context webpage : http://www.pragma-ade.nl / http://context.aanhet.net archive : https://bitbucket.org/phg/context-mirror/commits/ wiki : http://contextgarden.net ___________________________________________________________________________________ ^ permalink raw reply [flat|nested] 7+ messages in thread
* Disabling specific ligatures
@ 2011-09-18 0:02 Aditya Mahajan
2011-09-18 0:50 ` Khaled Hosny
0 siblings, 1 reply; 7+ messages in thread
From: Aditya Mahajan @ 2011-09-18 0:02 UTC (permalink / raw)
To: mailing list for ConTeXt users
In MkII, one can disable ligatures by inserting {} at the appropriate
place. For example `self{}ish` disables the ligature between f and i. What
is the equivalent way to disable ligatures in MkIV?
Thanks,
Aditya
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maillist : ntg-context@ntg.nl / http://www.ntg.nl/mailman/listinfo/ntg-context
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^ permalink raw reply [flat|nested] 7+ messages in thread* Re: Disabling specific ligatures 2011-09-18 0:02 Disabling " Aditya Mahajan @ 2011-09-18 0:50 ` Khaled Hosny 2011-09-18 1:13 ` Aditya Mahajan 0 siblings, 1 reply; 7+ messages in thread From: Khaled Hosny @ 2011-09-18 0:50 UTC (permalink / raw) To: mailing list for ConTeXt users On Sat, Sep 17, 2011 at 08:02:43PM -0400, Aditya Mahajan wrote: > In MkII, one can disable ligatures by inserting {} at the > appropriate place. For example `self{}ish` disables the ligature > between f and i. What is the equivalent way to disable ligatures in > MkIV? Inserting a empty box? self\null ish seems to work. The "Unicode way" would be inserting U+200C (ZWNJ) \starttext self{}ish\par self\null ish\par self\zwnj ish \stoptext Regards, Khaled -- Khaled Hosny Egyptian Arab ___________________________________________________________________________________ If your question is of interest to others as well, please add an entry to the Wiki! maillist : ntg-context@ntg.nl / http://www.ntg.nl/mailman/listinfo/ntg-context webpage : http://www.pragma-ade.nl / http://tex.aanhet.net archive : http://foundry.supelec.fr/projects/contextrev/ wiki : http://contextgarden.net ___________________________________________________________________________________ ^ permalink raw reply [flat|nested] 7+ messages in thread
* Re: Disabling specific ligatures 2011-09-18 0:50 ` Khaled Hosny @ 2011-09-18 1:13 ` Aditya Mahajan 2011-09-18 7:44 ` Wolfgang Schuster 0 siblings, 1 reply; 7+ messages in thread From: Aditya Mahajan @ 2011-09-18 1:13 UTC (permalink / raw) To: mailing list for ConTeXt users On Sun, 18 Sep 2011, Khaled Hosny wrote: > On Sat, Sep 17, 2011 at 08:02:43PM -0400, Aditya Mahajan wrote: >> In MkII, one can disable ligatures by inserting {} at the >> appropriate place. For example `self{}ish` disables the ligature >> between f and i. What is the equivalent way to disable ligatures in >> MkIV? > > Inserting a empty box? self\null ish seems to work. \null works but it disable hyphenation. > The "Unicode way" > would be inserting U+200C (ZWNJ) Thank you. This works perfectly. Aditya ___________________________________________________________________________________ If your question is of interest to others as well, please add an entry to the Wiki! maillist : ntg-context@ntg.nl / http://www.ntg.nl/mailman/listinfo/ntg-context webpage : http://www.pragma-ade.nl / http://tex.aanhet.net archive : http://foundry.supelec.fr/projects/contextrev/ wiki : http://contextgarden.net ___________________________________________________________________________________ ^ permalink raw reply [flat|nested] 7+ messages in thread
* Re: Disabling specific ligatures 2011-09-18 1:13 ` Aditya Mahajan @ 2011-09-18 7:44 ` Wolfgang Schuster 2011-09-19 14:30 ` Aditya Mahajan 0 siblings, 1 reply; 7+ messages in thread From: Wolfgang Schuster @ 2011-09-18 7:44 UTC (permalink / raw) To: mailing list for ConTeXt users Am 18.09.2011 um 03:13 schrieb Aditya Mahajan: > On Sun, 18 Sep 2011, Khaled Hosny wrote: > >> On Sat, Sep 17, 2011 at 08:02:43PM -0400, Aditya Mahajan wrote: >>> In MkII, one can disable ligatures by inserting {} at the >>> appropriate place. For example `self{}ish` disables the ligature >>> between f and i. What is the equivalent way to disable ligatures in >>> MkIV? >> >> Inserting a empty box? self\null ish seems to work. > > \null works but it disable hyphenation. > >> The "Unicode way" >> would be inserting U+200C (ZWNJ) > > Thank you. This works perfectly. When you don’t mind the extra space you can use “|*|”. Wolfgang ___________________________________________________________________________________ If your question is of interest to others as well, please add an entry to the Wiki! maillist : ntg-context@ntg.nl / http://www.ntg.nl/mailman/listinfo/ntg-context webpage : http://www.pragma-ade.nl / http://tex.aanhet.net archive : http://foundry.supelec.fr/projects/contextrev/ wiki : http://contextgarden.net ___________________________________________________________________________________ ^ permalink raw reply [flat|nested] 7+ messages in thread
* Re: Disabling specific ligatures 2011-09-18 7:44 ` Wolfgang Schuster @ 2011-09-19 14:30 ` Aditya Mahajan 0 siblings, 0 replies; 7+ messages in thread From: Aditya Mahajan @ 2011-09-19 14:30 UTC (permalink / raw) To: mailing list for ConTeXt users [-- Attachment #1: Type: TEXT/PLAIN, Size: 1001 bytes --] On Sun, 18 Sep 2011, Wolfgang Schuster wrote: > > Am 18.09.2011 um 03:13 schrieb Aditya Mahajan: > >> On Sun, 18 Sep 2011, Khaled Hosny wrote: >> >>> On Sat, Sep 17, 2011 at 08:02:43PM -0400, Aditya Mahajan wrote: >>>> In MkII, one can disable ligatures by inserting {} at the >>>> appropriate place. For example `self{}ish` disables the ligature >>>> between f and i. What is the equivalent way to disable ligatures in >>>> MkIV? >>> >>> Inserting a empty box? self\null ish seems to work. >> >> \null works but it disable hyphenation. >> >>> The "Unicode way" >>> would be inserting U+200C (ZWNJ) >> >> Thank you. This works perfectly. Actually it does not. The word cannot hypenate wher \zwnj is inserted. > When you don’t mind the extra space you can use “|*|”. This works well. But why is the * discretionary defined to insert the extra 0.05em space? (I can overwrite it in my document, but I just curious about the reason for the original definition). Aditya [-- Attachment #2: Type: text/plain, Size: 485 bytes --] ___________________________________________________________________________________ If your question is of interest to others as well, please add an entry to the Wiki! maillist : ntg-context@ntg.nl / http://www.ntg.nl/mailman/listinfo/ntg-context webpage : http://www.pragma-ade.nl / http://tex.aanhet.net archive : http://foundry.supelec.fr/projects/contextrev/ wiki : http://contextgarden.net ___________________________________________________________________________________ ^ permalink raw reply [flat|nested] 7+ messages in thread
end of thread, other threads:[~2017-03-22 11:04 UTC | newest] Thread overview: 7+ messages (download: mbox.gz / follow: Atom feed) -- links below jump to the message on this page -- 2017-03-21 16:44 disabling specific ligatures Csikos Bela 2017-03-22 11:04 ` Hans Hagen -- strict thread matches above, loose matches on Subject: below -- 2011-09-18 0:02 Disabling " Aditya Mahajan 2011-09-18 0:50 ` Khaled Hosny 2011-09-18 1:13 ` Aditya Mahajan 2011-09-18 7:44 ` Wolfgang Schuster 2011-09-19 14:30 ` Aditya Mahajan
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