2016-03-12 16:45:00

1 files changed, 43 insertions, 0 deletions

diff --git a/tex/context/base/mkiv/font-ext.lua b/tex/context/base/mkiv/font-ext.lua
index f153d5624..fc161f59a 100644
--- a/tex/context/base/mkiv/font-ext.lua
+++ b/tex/context/base/mkiv/font-ext.lua
@@ -7,6 +7,7 @@ if not modules then modules = { } end modules ['font-ext'] = {
 }
 
 local next, type, byte = next, type, string.byte
+local utfbyte = utf.byte
 
 local context            = context
 local fonts              = fonts
@@ -855,6 +856,47 @@ registerotffeature {
     }
 }
 
+-- -- for notosans but not general
+--
+-- do
+--
+--     local v_local = interfaces and interfaces.variables and interfaces.variables["local"] or "local"
+--
+--     local function initialize(tfmdata,key,value)
+--         local characters = tfmdata.characters
+--         local parameters = tfmdata.parameters
+--         local oldchar    = 32
+--         local newchar    = 32
+--         if value == "locl" or value == v_local then
+--             newchar = fonts.handlers.otf.getsubstitution(tfmdata,oldchar,"locl",true) or oldchar
+--         elseif value == true then
+--             -- use normal space
+--         elseif value then
+--             newchar = utfbyte(value)
+--         else
+--             return
+--         end
+--         local newchar  = newchar and characters[newchar]
+--         local newspace = newchar and newchar.width
+--         if newspace > 0 then
+--             parameters.space         = newspace
+--             parameters.space_stretch = newspace/2
+--             parameters.space_shrink  = newspace/3
+--             parameters.extra_space   = parameters.space_shrink
+--         end
+--     end
+--
+--     registerotffeature {
+--         name        = 'space', -- true|false|locl|character
+--         description = 'space settings',
+--         manipulators = {
+--             base = initialize,
+--             node = initialize,
+--         }
+--     }
+--
+-- end
+
 -- -- historic stuff, move from font-ota (handled differently, typo-rep)
 --
 -- local delete_node = nodes.delete
@@ -995,3 +1037,4 @@ implement {
         context(getprivatenode(fontdata[currentfont()],name))
     end
 }
+