YOLO

Author: zauguin

src/luaotfload-features.lua

@@ -952,6 +952,19 @@ local function initializeprotrusion(tfmdata, value)
         end
         return
     end
+    local lookup = {}
+    local name_to_index = tfmdata.resources.unicodes
+    for k, v in next, setup do
+        local ktype = type(k)
+        if ktype == 'number' then
+            lookup[k] = v
+        elseif ktype == 'string' then
+            local index = name_to_index[k]
+            if index then
+                lookup[index] = v
+            end
+        end
+    end
     local quad = tfmdata.parameters.quad
     local factor = setup.factor or 1
     if quad ~= 0 then
@@ -961,7 +974,7 @@ local function initializeprotrusion(tfmdata, value)
     local right = factor * (setup.right or 1)
     for i, chr in next, tfmdata.characters do
         local width = chr.width or 0
-        local v, pl, pr = setup[i], nil, nil
+        local v, pl, pr = lookup[i], nil, nil
         if v then
             pl, pr = v[1], v[2]
         end
@@ -989,12 +1002,25 @@ local function initializeexpansion(tfmdata, value)
         end
         return
     end
+    local lookup = {}
+    local name_to_index = tfmdata.resources.unicodes
+    for k, v in next, setup do
+        local ktype = type(k)
+        if ktype == 'number' then
+            lookup[k] = v
+        elseif ktype == 'string' then
+            local index = name_to_index[k]
+            if index then
+                lookup[index] = v
+            end
+        end
+    end
     local factor = 1000 * (setup.factor or 1)
     tfmdata.stretch = 10 * (setup.stretch or 0)
     tfmdata.shrink = 10 * (setup.shrink or 0)
     tfmdata.step = 10 * (setup.step or 0)
     for i, chr in next, tfmdata.characters do
-        local v = setup[i]
+        local v = lookup[i]
         if v and v ~= 0 then
             chr.expansion_factor = v * factor
         elseif factor ~= 1000 then