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authorPhilipp Gesang <phg42.2a@gmail.com>2014-08-10 14:36:13 +0200
committerPhilipp Gesang <phg42.2a@gmail.com>2014-08-10 14:36:13 +0200
commitfb374b76a6f7f66b300652ba12f40f0f28a1a9b5 (patch)
tree103a0f84d4e55473dd0307c7d7b65b8d2d55a775 /src/luaotfload-main.lua
parent32296e68a23ddb5f035e6991733466ea82231c95 (diff)
downloadluaotfload-fb374b76a6f7f66b300652ba12f40f0f28a1a9b5.tar.gz
[conf, main] add support for and preliminary implementation of verbose font definers
The definers ``info_patch`` and ``info_generic`` wrap the two existing font definers in a function that emits verbose information about the definitions taking place.
Diffstat (limited to 'src/luaotfload-main.lua')
-rw-r--r--src/luaotfload-main.lua41
1 files changed, 32 insertions, 9 deletions
diff --git a/src/luaotfload-main.lua b/src/luaotfload-main.lua
index 773a3cf..26d1515 100644
--- a/src/luaotfload-main.lua
+++ b/src/luaotfload-main.lua
@@ -4,7 +4,7 @@
-- REQUIREMENTS: luatex v.0.79 or later; packages lualibs, luatexbase
-- AUTHOR: Élie Roux, Khaled Hosny, Philipp Gesang
-- VERSION: same as Luaotfload
--- MODIFIED: 2014-07-24 22:08:34+0200
+-- MODIFIED: 2014-08-08 23:14:37+0200
-----------------------------------------------------------------------
--
--- Note:
@@ -672,13 +672,13 @@ create_callback("luaotfload.patch_font", "simple", dummy_function)
--doc]]--
-local read_font_file = fonts.definers.read
-local definers = {
- generic = read_font_file,
- --- spec -> size -> id -> tmfdata
- patch = function (specification, size, id)
- local tfmdata = read_font_file (specification, size, id)
+local definers = { } --- (string, spec -> size -> id -> tmfdata) hash_t
+do
+ local read = fonts.definers.read
+
+ local patch = function (specification, size, id)
+ local tfmdata = read (specification, size, id)
if type (tfmdata) == "table" and tfmdata.shared then
--- We need to test for the “shared” field here
--- or else the fontspec capheight callback will
@@ -686,8 +686,31 @@ local definers = {
call_callback ("luaotfload.patch_font", tfmdata, specification)
end
return tfmdata
- end,
-}
+ end
+
+ local mk_info = function (name)
+ local definer = name == "patch" and patch or read
+ return function (specification, size, id)
+ logreport ("both", 0, "main",
+ "active font definer: %q", name)
+ logreport ("both", 0, "main", " > defining font no. %d", id)
+ logreport ("both", 0, "main", " > spec %q", specification)
+ logreport ("both", 0, "main", " > at size %.2f pt", size / 2^16)
+ local tfmdata = definer (specification, size, id)
+ if not tfmdata then
+ logreport ("both", 0, "main", "font definition failed")
+ return
+ end
+ logreport ("both", 0, "main", "font definition successful")
+ return tfmdata
+ end
+ end
+
+ definers.patch = patch
+ definers.generic = read
+ definers.info_patch = mk_info "patch"
+ definers.info_generic = mk_info "generic"
+end
reset_callback "define_font"