summaryrefslogtreecommitdiff
path: root/Master/texmf-dist/tex/context/base/mkiv/font-otc.lua
diff options
context:
space:
mode:
Diffstat (limited to 'Master/texmf-dist/tex/context/base/mkiv/font-otc.lua')
-rw-r--r--Master/texmf-dist/tex/context/base/mkiv/font-otc.lua27
1 files changed, 22 insertions, 5 deletions
diff --git a/Master/texmf-dist/tex/context/base/mkiv/font-otc.lua b/Master/texmf-dist/tex/context/base/mkiv/font-otc.lua
index 871b6f13c97..be9ba86604b 100644
--- a/Master/texmf-dist/tex/context/base/mkiv/font-otc.lua
+++ b/Master/texmf-dist/tex/context/base/mkiv/font-otc.lua
@@ -61,8 +61,6 @@ local function addfeature(data,feature,specifications)
end
-- feature has to be unique but the name entry wins eventually
- -- todo alse gpos
-
local fontfeatures = resources.features or everywhere
local unicodes = resources.unicodes
local splitter = lpeg.splitter(" ",unicodes)
@@ -529,6 +527,7 @@ end
otf.enhancers.addfeature = addfeature
local extrafeatures = { }
+local knownfeatures = { }
function otf.addfeature(name,specification)
if type(name) == "table" then
@@ -536,16 +535,31 @@ function otf.addfeature(name,specification)
name = specification.name
end
if type(name) == "string" then
- extrafeatures[name] = specification
+ local slot = knownfeatures[name]
+ if slot then
+ -- we overload one
+ else
+ slot = #extrafeatures + 1
+ knownfeatures[name] = slot
+ end
+ specification.name = name -- to be sure
+ extrafeatures[slot] = specification
end
end
+-- for feature, specification in next, extrafeatures do
+-- addfeature(data,feature,specification)
+-- end
+
local function enhance(data,filename,raw)
- for feature, specification in next, extrafeatures do
- addfeature(data,feature,specification)
+ for slot=1,#extrafeatures do
+ local specification = extrafeatures[slot]
+ addfeature(data,specification.name,specification)
end
end
+-- otf.enhancers.enhance = enhance
+
otf.enhancers.register("check extra features",enhance)
-- tlig --
@@ -574,6 +588,7 @@ local tlig_specification = {
otf.addfeature("tlig",tlig_specification)
registerotffeature {
+ -- this makes it a known feature (in tables)
name = 'tlig',
description = 'tex ligatures',
}
@@ -598,6 +613,7 @@ local trep_specification = {
otf.addfeature("trep",trep_specification)
registerotffeature {
+ -- this makes it a known feature (in tables)
name = 'trep',
description = 'tex replacements',
}
@@ -699,6 +715,7 @@ local anum_specification = {
otf.addfeature("anum",anum_specification) -- todo: only when there is already an arab script feature
registerotffeature {
+ -- this makes it a known feature (in tables)
name = 'anum',
description = 'arabic digits',
}