diff options
Diffstat (limited to 'tex/context/base/mkiv/font-ext.lua')
| -rw-r--r-- | tex/context/base/mkiv/font-ext.lua | 49 |
1 files changed, 49 insertions, 0 deletions
diff --git a/tex/context/base/mkiv/font-ext.lua b/tex/context/base/mkiv/font-ext.lua index 6edfe7025..965b6e6dc 100644 --- a/tex/context/base/mkiv/font-ext.lua +++ b/tex/context/base/mkiv/font-ext.lua @@ -1296,3 +1296,52 @@ do -- another hack for a crappy font } end + +do + + local tounicode = fonts.mappings.tounicode + + local function check(tfmdata,key,value) + if value == "ligatures" then + local private = fonts.constructors and fonts.constructors.privateoffset or 0xF0000 + local collected = fonts.handlers.otf.readers.getcomponents(tfmdata.shared.rawdata) + if collected and next(collected)then + for unicode, char in next, tfmdata.characters do + if true then -- if unicode >= private or (unicode >= 0xE000 and unicode <= 0xF8FF) then + local u = collected[unicode] + if u then + local n = #u + for i=1,n do + if u[i] > private then + n = 0 + break + end + end + if n > 0 then + if n == 1 then + u = u[1] + end + char.unicode = u + char.tounicode = tounicode(u) + end + end + end + end + end + end + end + + -- forceunicodes=ligatures : aggressive lig resolving (e.g. for emoji) + -- + -- kind of like: \enabletrackers[fonts.mapping.forceligatures] + + registerotffeature { + name = "forceunicodes", + description = "forceunicodes", + manipulators = { + base = check, + node = check, + } + } + +end |