git works better if all files are checked in ...

luametalatex-pdf-font-node.lua

@@ -0,0 +1,42 @@
+local writer = require'luametalatex-nodewriter'
+local utils = require'luametalatex-pdf-utils'
+local to_bp, strip_floats = utils.to_bp, utils.strip_floats
+local prepared = {}
+return {
+  buildfont = function(pdf, fontdir, usedcids)
+    local designsize = fontdir.designsize
+    local scale = 1/to_bp(designsize)
+    local bbox = {0, 0, 0, 0}
+    local matrix = {scale, 0, 0, scale, 0, 0}
+    local widths = {}
+    local first_cid = usedcids[1][1]-1
+    local charprocs = {}
+    local prev = 0
+    local characters = fontdir.characters
+    local prepared = assert(prepared[fontdir])
+    for i=1,#usedcids do
+      local used = usedcids[i]
+      local glyph = characters[used[1]]
+      for j=prev+1,used[1]-first_cid-1 do
+        widths[j] = 0
+      end
+      prev = used[1]-first_cid
+      widths[prev] = to_bp(glyph.width)
+      charprocs[i] = string.format("/G%i %i 0 R", used[1], prepared[used[1]])
+    end
+    return bbox, matrix, pdf:indirect(nil, strip_floats('[' .. table.concat(widths, ' ') .. ']')), '<<' .. table.concat(charprocs) .. '>>'
+  end,
+  prepare = function(fontdir, usedglyphs, pdf, fontdirs, allusedglyphs)
+    local state = prepared[fontdir]
+    if not state then
+      state = {}
+      prepared[fontdir] = state
+    end
+    for gid in next, usedglyphs do if tonumber(gid) and not state[gid] then
+        local stream, annots
+        stream, state.resources, annots = writer(pdf, fontdir.characters[gid].node, fontdirs, allusedglyphs, nil, state.resources)
+        state[gid] = pdf:stream(nil, '', stream)
+        assert(annots == '')
+    end end
+  end,
+}

luametalatex-pdf-resources.lua

@@ -0,0 +1,37 @@
+local format = string.format
+local concat = table.concat
+local next = next
+
+local temp_table = {}
+local resources_meta = {
+  __index = function(t, k)
+    local v = {}
+    t[k] = v
+    return v
+  end,
+  __call = function(t, additional)
+    local temp_table = temp_table
+    local i=1
+    local next_init = '<</%s<<'
+    for kind, entries in next, t do
+      temp_table[i] = format(next_init, kind)
+      next_init = '>>/%s<<'
+      i = i+1
+      for name, entry in next, entries do
+        temp_table[i] = format('/%s %i 0 R', name, entry)
+        i = i+1
+      end
+    end
+    if i == 1 then return format('<<%s>>', additional or '') end
+    temp_table[i] = format('>>%s>>', additional or '')
+    local result = concat(temp_table)
+    for j=1,i do
+      temp_table[j] = nil
+    end
+    return result
+  end,
+}
+
+return function(t)
+  return setmetatable(t or {}, resources_meta)
+end