Hello Hans,
I compared tex-text and trep, tlig. Since you map features=default to
trep and tlig, and both of them further to tex-text (twice), tex-text
could be split in two parts as well, so that you can make one-to-one
mapping.
Should I make those changes and seny you the two files? (Twice 300
bytes to be added to ConTeXt + souce, which is approximately the same
as written below.)
1.) TREP
function fonts.initializers.base.otf.texquotes(tfm,value)
tfm.characters[0x0022] = table.fastcopy(tfm.characters[0x201D])
tfm.characters[0x0027] = table.fastcopy(tfm.characters[0x2019])
tfm.characters[0x0060] = table.fastcopy(tfm.characters[0x2018])
end
Corresponding lines from XeTeX:
U+0022; ; ; >;U+201D; ; " -> right double quote
U+0027; ; ; <>;U+2019; ; ' -> right single quote
U+0060; ; ; <>;U+2018; ; ` -> left single quote
2.) TLIG
{ "endash", "hyphen hyphen" },
U+002D U+002D; ; ; <>;U+2013; ; -- -> en dash
{ "emdash", "hyphen hyphen hyphen" },
U+002D U+002D U+002D;<>;U+2014; ; --- -> em dash
{ "quotedblright", "quotesingle quotesingle" },
U+0027 U+0027; <>;U+201D; ; '' -> right double quote
{ "quotedblleft", "grave grave" },
U+0060 U+0060; <>;U+201C; ; `` -> left double quote
{ "quotedblbase", "comma comma" }
U+002C U+002C; <>;U+201E; ; ,, -> DOUBLE LOW-9 QUOTATION MARK
missing from tex-text (not needed so far)
{ "quotedblleft", "quoteleft quoteleft" },
0x2018 0x2018 <> 0x201C ; 2x left single quote -> left double quote
{ "quotedblright", "quoteright quoteright" },
0x2019 0x2019 <> 0x201D ; 2x right single quote -> right double quote
3.) Only in XeTeX's tex-text (Do people need it?):
U+0021 U+0060; <>;U+00A1; ; !` -> inverted exclam
U+003F U+0060; <>;U+00BF; ; ?` -> inverted question
U+003C U+003C; <>;U+00AB; ; << -> LEFT POINTING GUILLEMET
U+003E U+003E; <>;U+00BB; ; >> -> RIGHT POINTING GUILLEMET
Plus, there's a little problem with this patch that I have sent you
(it's not in stable yet, so it might make sense to fix it before
releasing):
\definefontsynonym[Dummy] [name:\typescripttwo] [features=default]
\definefontsynonym[DummyItalic] [name:\typescripttwo/I] [features=default]
\definefontsynonym[DummyBold] [name:\typescripttwo/B] [features=default]
\definefontsynonym[DummyBoldItalic][name:\typescripttwo/BI][features=default]
\definefontsynonym[DummyCaps] [name:\typescripttwo] [features=smallcaps]
The problem is that "features=default" implies "script=latn", which is
not always desired. A copy of mapping=tex-text comes from tlig & trep
substitution.
I assume that script=latn;language=dflt;+liga;+kern; is always on by
default (were needed), so basically mapping=tex-text is the only thing
that really needs to be added.
[Iwona-Bold.otf]:script=latn;language=dflt;+liga;+kern;mapping=tex-text;mapping=tex-text;
Some (non-latin) fonts complain when one requests non-existing features.
Also, it might be handy to be able to define
\definetypeface[basic][rm][Xserif][whatever][script=arab,language=...]
(for now forget that one, interface needs to be extended once and properly).
\definefontsynonym[a][file:Iwona-Bold.otf][mapping=tex-text]
doesn't work, so the only way seems to be
\definefontfeature[xetex][mapping=tex-text]
\definefontsynonym[a][file:Iwona-Bold.otf][xetex]
I have tried to use
\definefontfeature[xetex][mapping=tex-text]
\definefontfeature[caps][+smcp]
\definefontsynonym[a][file:Iwona-Bold.otf][features={xetex,caps}]
but that didn't work.
Mojca
