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-rw-r--r--src/luaotfload-auxiliary.lua81
-rw-r--r--src/luaotfload-main.lua2
2 files changed, 59 insertions, 24 deletions
diff --git a/src/luaotfload-auxiliary.lua b/src/luaotfload-auxiliary.lua
index 11d3101..8292ddd 100644
--- a/src/luaotfload-auxiliary.lua
+++ b/src/luaotfload-auxiliary.lua
@@ -10,10 +10,7 @@
--- this file addresses issue #24
--- https://github.com/lualatex/luaotfload/issues/24#
-luaotfload = luaotfload or {}
-luaotfload.aux = luaotfload.aux or { }
-
-local aux = luaotfload.aux
+luaotfload = luaotfload or { }
local log = luaotfload.log
local logreport = log.report
local fonthashes = fonts.hashes
@@ -35,6 +32,9 @@ local stringbyte = string.byte
local stringfind = string.find
local tablecopy = table.copy
+local aux = { }
+local luaotfload_callbacks = { }
+
-----------------------------------------------------------------------
--- font patches
-----------------------------------------------------------------------
@@ -89,10 +89,9 @@ local set_sscale_dimens = function (fontdata)
return fontdata
end
-luatexbase.add_to_callback(
- "luaotfload.patch_font",
- set_sscale_dimens,
- "luaotfload.aux.set_sscale_dimens")
+luaotfload_callbacks [#luaotfload_callbacks + 1] = {
+ "patch_font", set_sscale_dimens, "set_sscale_dimens",
+}
--- fontobj -> int
local lookup_units = function (fontdata)
@@ -124,11 +123,10 @@ local patch_cambria_domh = function (fontdata)
end
end
-luatexbase.add_to_callback(
- "luaotfload.patch_font",
- patch_cambria_domh,
- "luaotfload.aux.patch_cambria_domh")
-
+luaotfload_callbacks [#luaotfload_callbacks + 1] = {
+ "patch_font", patch_cambria_domh, "patch_cambria_domh",
+}
+
--[[doc--
@@ -152,11 +150,10 @@ local fixup_fontdata = function (data)
end
-luatexbase.add_to_callback(
- "luaotfload.patch_font_unsafe",
- fixup_fontdata,
- "luaotfload.aux.fixup_fontdata")
-
+luaotfload_callbacks [#luaotfload_callbacks + 1] = {
+ "patch_font_unsafe", fixup_fontdata, "fixup_fontdata",
+}
+
--[[doc--
@@ -204,10 +201,9 @@ local set_capheight = function (fontdata)
end
end
-luatexbase.add_to_callback(
- "luaotfload.patch_font",
- set_capheight,
- "luaotfload.aux.set_capheight")
+luaotfload_callbacks [#luaotfload_callbacks + 1] = {
+ "patch_font", set_capheight, "set_capheight",
+}
-----------------------------------------------------------------------
--- glyphs and characters
@@ -843,4 +839,43 @@ end
aux.get_quad = get_quad
--- vim:tw=71:sw=2:ts=2:expandtab
+
+-----------------------------------------------------------------------
+--- initialization
+-----------------------------------------------------------------------
+
+local inject_callbacks = function (lst)
+ if not lst and next (lst) then return false end
+
+ local inject = function (def)
+ local cb, fn, id = unpack (def)
+ cb = tostring (cb)
+ id = tostring (id)
+ if not cb or not fn or not id or not type (fn) == "function" then
+ logreport ("both", 0, "aux", "Invalid callback requested (%q, %s, %q).",
+ cb, tostring (fn), id)
+ return false
+ end
+ cb = stringformat ("luaotfload.%s", cb)
+ id = stringformat ("luaotfload.aux.%s", id)
+ logreport ("log", 5, "aux", "Installing callback %q->%q.", cb, id)
+ luatexbase.add_to_callback (cb, fn, id)
+ return true
+ end
+
+ local ret = true
+ for i = 1, #lst do ret = inject (lst [i]) end
+ return ret
+end
+
+return {
+ init = function ()
+ local ret = true
+ luaotfload.aux = aux
+ ret = inject_callbacks (luaotfload_callbacks)
+ return ret
+ end
+}
+
+-- vim:tw=79:sw=2:ts=8:et
+
diff --git a/src/luaotfload-main.lua b/src/luaotfload-main.lua
index 9525ca4..c843f26 100644
--- a/src/luaotfload-main.lua
+++ b/src/luaotfload-main.lua
@@ -254,7 +254,7 @@ luaotfload.main = function ()
initialize "features" --- font request and feature handling
loadmodule "letterspace" --- extra character kerning
- loadmodule "auxiliary" --- additional high-level functionality
+ initialize "auxiliary" --- additional high-level functionality
luaotfload.aux.start_rewrite_fontname () --- to be migrated to fontspec