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-rw-r--r--src/luaotfload-main.lua278
1 files changed, 136 insertions, 142 deletions
diff --git a/src/luaotfload-main.lua b/src/luaotfload-main.lua
index b633ed7..62765e4 100644
--- a/src/luaotfload-main.lua
+++ b/src/luaotfload-main.lua
@@ -3,23 +3,17 @@
-- DESCRIPTION: Luaotfload entry point
-- REQUIREMENTS: luatex v.0.80 or later; packages lualibs, luatexbase
-- AUTHOR: Élie Roux, Khaled Hosny, Philipp Gesang
--- VERSION: same as Luaotfload
--- MODIFIED: 2015-06-09 23:08:18+0200
-----------------------------------------------------------------------
--
---- Note:
---- This file was part of the original luaotfload.dtx and has been
---- converted to a pure Lua file during the transition from Luaotfload
---- version 2.4 to 2.5. Thus, the comments are still in TeX (Latex)
---- markup.
-local initial_log_level = 0
+local osgettimeofday = os.gettimeofday
+config = config or { }
luaotfload = luaotfload or { }
local luaotfload = luaotfload
luaotfload.log = luaotfload.log or { }
luaotfload.version = "2.6"
luaotfload.loaders = { }
-luaotfload.min_luatex_version = 79 --- i. e. 0.79
+luaotfload.min_luatex_version = 80 --- i. e. 0.79
luaotfload.fontloader_package = "reference" --- default: from current Context
local authors = "\z
@@ -36,7 +30,7 @@ local authors = "\z
luaotfload.module = {
name = "luaotfload-main",
version = 2.60001,
- date = "2015/05/26",
+ date = "2015/11/05",
description = "OpenType layout system.",
author = authors,
copyright = authors,
@@ -67,23 +61,10 @@ luaotfload.module = {
local luatexbase = luatexbase
local require = require
local type = type
-local add_to_callback = luatexbase.add_to_callback
-local create_callback = luatexbase.create_callback
-local reset_callback = luatexbase.reset_callback
-local call_callback = luatexbase.call_callback
-local dummy_function = function () end --- XXX this will be moved to the luaotfload namespace when we have the init module
-
-local error, warning, info, log =
+local _error, _warning, _info, _log =
luatexbase.provides_module(luaotfload.module)
-luaotfload.log.tex = {
- error = error,
- warning = warning,
- info = info,
- log = log,
-}
-
--[[doc--
We set the minimum version requirement for \LUATEX to v0.76,
@@ -117,153 +98,166 @@ end
--doc]]--
local make_loader_name = function (prefix, name)
- local msg = luaotfload.log and luaotfload.log.report or print
- if prefix then
- msg ("log", 7, "load",
- "Composing fontloader name from constitutents %s, %s",
- prefix, name)
- return prefix .. "-" .. name .. ".lua"
+ local msg = luaotfload.log and luaotfload.log.report
+ or function (...) texio.write_nl ("log", ...) end
+ if not name then
+ msg ("both", 0, "load",
+ "Fatal error: make_loader_name (“%s”, “%s”).",
+ tostring (prefix), tostring (name))
+ return "dummy-name"
end
- msg ("log", 7, "load",
- "Loading fontloader file %s literally.",
- name)
- return name
+ name = tostring (name)
+ if prefix == false then
+ msg ("log", 9, "load",
+ "No prefix requested, passing module name “%s” unmodified.",
+ name)
+ return tostring (name) .. ".lua"
+ end
+ prefix = tostring (prefix)
+ msg ("log", 9, "load",
+ "Composing module name from constituents %s, %s.",
+ prefix, name)
+ return prefix .. "-" .. name .. ".lua"
end
+local timing_info = {
+ t_load = { },
+ t_init = { },
+}
+
local make_loader = function (prefix)
return function (name)
+ local t_0 = osgettimeofday ()
local modname = make_loader_name (prefix, name)
- return require (modname)
+ local data = require (modname)
+ local t_end = osgettimeofday ()
+ timing_info.t_load [name] = t_end - t_0
+ return data
end
end
-local load_luaotfload_module = make_loader "luaotfload"
------ load_luaotfload_module = make_loader "luatex" --=> for Luatex-Plain
-local load_fontloader_module = make_loader "fontloader"
-
-luaotfload.loaders.luaotfload = load_luaotfload_module
-luaotfload.loaders.fontloader = load_fontloader_module
-
-luaotfload.init = load_luaotfload_module "init" --- fontloader initialization
-
-local store = luaotfload.init.early ()
-local log = luaotfload.log
-local logreport = log.report
-
--[[doc--
-
- Now we load the modules written for \identifier{luaotfload}.
-
+ Certain files are kept around that aren’t loaded because they are part of
+ the imported fontloader. In order to keep the initialization structure
+ intact we also provide a no-op version of the module loader that can be
+ called in the expected places.
--doc]]--
-load_luaotfload_module "parsers" --- fonts.conf and syntax
-load_luaotfload_module "configuration" --- configuration options
-
-if not config.actions.apply_defaults () then
- logreport ("log", 0, "load", "Configuration unsuccessful.")
+local dummy_loader = function (name)
+ luaotfload.log.report ("log", 3, "load",
+ "Skipping module “%s” on purpose.",
+ name)
end
-luaotfload.init.main (store)
-
-load_luaotfload_module "loaders" --- Type1 font wrappers
-load_luaotfload_module "database" --- Font management.
-load_luaotfload_module "colors" --- Per-font colors.
-
-luaotfload.resolvers = load_luaotfload_module "resolvers" --- Font lookup
-
-luaotfload.resolvers.install ()
-
-if not config.actions.reconfigure () then
- logreport ("log", 0, "load", "Post-configuration hooks failed.")
-end
-
---[[doc--
-
- We create callbacks for patching fonts on the fly, to be used by
- other packages. In addition to the regular \identifier{patch_font}
- callback there is an unsafe variant \identifier{patch_font_unsafe}
- that will be invoked even if the target font lacks certain essential
- tfmdata tables.
-
- The callbacks initially contain the empty function that we are going to
- override below.
-
---doc]]--
-
-create_callback("luaotfload.patch_font", "simple", dummy_function)
-create_callback("luaotfload.patch_font_unsafe", "simple", dummy_function)
-
---[[doc--
-
- \subsection{\CONTEXT override}
- \label{define-font}
- We provide a simplified version of the original font definition
- callback.
-
---doc]]--
-
-
-local definers = { } --- (string, spec -> size -> id -> tmfdata) hash_t
-do
- local read = fonts.definers.read
-
- local patch = function (specification, size, id)
- local fontdata = read (specification, size, id)
- if type (fontdata) == "table" and fontdata.shared then
- --- We need to test for the “shared” field here
- --- or else the fontspec capheight callback will
- --- operate on tfm fonts.
- call_callback ("luaotfload.patch_font", fontdata, specification)
+local context_loader = function (name, path)
+ luaotfload.log.report ("log", 3, "load",
+ "Loading module “%s” from Context.",
+ name)
+ local t_0 = osgettimeofday ()
+ local modname = make_loader_name (false, name)
+ local modpath = modname
+ if path then
+ if lfs.isdir (path) then
+ luaotfload.log.report ("log", 3, "load",
+ "Prepending path “%s”.",
+ path)
+ modpath = file.join (path, modname)
else
- call_callback ("luaotfload.patch_font_unsafe", fontdata, specification)
+ luaotfload.log.report ("both", 0, "load",
+ "Non-existant path “%s” specified, ignoring.",
+ path)
end
- return fontdata
end
+ local ret = require (modpath)
+ local t_end = osgettimeofday ()
+ timing_info.t_load [name] = t_end - t_0
+
+ if ret ~= true then
+ --- require () returns “true” upon success unless the loaded file
+ --- yields a non-zero exit code. This isn’t per se indicating that
+ --- something isn’t right, but against HH’s coding practices. We’ll
+ --- silently ignore this ever happening on lower log levels.
+ luaotfload.log.report ("log", 4, "load",
+ "Module “%s” returned “%s”.", ret)
+ end
+ return ret
+end
- local mk_info = function (name)
- local definer = name == "patch" and patch or read
- return function (specification, size, id)
- logreport ("both", 0, "main", "defining font no. %d", id)
- logreport ("both", 0, "main", " > active font definer: %q", name)
- logreport ("both", 0, "main", " > spec %q", specification)
- logreport ("both", 0, "main", " > at size %.2f pt", size / 2^16)
- local result = definer (specification, size, id)
- if not result then
- logreport ("both", 0, "main", " > font definition failed")
- return
- elseif type (result) == "number" then
- logreport ("both", 0, "main", " > font definition yielded id %d", result)
- return result
+local install_loaders = function ()
+ local loaders = { }
+ local loadmodule = make_loader "luaotfload"
+ loaders.luaotfload = loadmodule
+ loaders.fontloader = make_loader "fontloader"
+ loaders.context = context_loader
+ loaders.ignore = dummy_loader
+----loaders.plaintex = make_loader "luatex" --=> for Luatex-Plain
+
+ loaders.initialize = function (name)
+ local tmp = loadmodule (name)
+ local logreport = luaotfload.log.report
+ if type (tmp) == "table" then
+ local init = tmp.init
+ if init and type (init) == "function" then
+ local t_0 = osgettimeofday ()
+ if not init () then
+ logreport ("log", 0, "load",
+ "Failed to load module “%s”.", name)
+ return
+ end
+ local t_end = osgettimeofday ()
+ local d_t = t_end - t_0
+ logreport ("log", 4, "load",
+ "Module “%s” loaded in %d ms.",
+ name, d_t)
+ timing_info.t_init [name] = d_t
end
- logreport ("both", 0, "main", " > font definition successful")
- logreport ("both", 0, "main", " > name %q", result.name or "<nil>")
- logreport ("both", 0, "main", " > fontname %q", result.fontname or "<nil>")
- logreport ("both", 0, "main", " > fullname %q", result.fullname or "<nil>")
- return result
end
end
- definers.patch = patch
- definers.generic = read
- definers.info_patch = mk_info "patch"
- definers.info_generic = mk_info "generic"
+ return loaders
end
-reset_callback "define_font"
---[[doc--
+luaotfload.main = function ()
- Finally we register the callbacks.
+ luaotfload.loaders = install_loaders ()
+ local loaders = luaotfload.loaders
+ local loadmodule = loaders.luaotfload
+ local initialize = loaders.initialize
---doc]]--
+ local starttime = osgettimeofday ()
+ local init = loadmodule "init" --- fontloader initialization
+ local store = init.early () --- injects the log module too
+ local logreport = luaotfload.log.report
+
+ initialize "parsers" --- fonts.conf and syntax
+ initialize "configuration" --- configuration options
+
+ if not init.main (store) then
+ logreport ("log", 0, "load", "Main fontloader initialization failed.")
+ end
-local definer = config.luaotfload.run.definer
-add_to_callback ("define_font", definers[definer], "luaotfload.define_font", 1)
+ initialize "loaders" --- Font loading; callbacks
+ initialize "database" --- Font management.
+ initialize "colors" --- Per-font colors.
-load_luaotfload_module "features" --- font request and feature handling
-load_luaotfload_module "letterspace" --- extra character kerning
-load_luaotfload_module "auxiliary" --- additional high-level functionality
+ luaotfload.resolvers = loadmodule "resolvers" --- Font lookup
+ luaotfload.resolvers.init ()
-luaotfload.aux.start_rewrite_fontname () --- to be migrated to fontspec
+ if not config.actions.reconfigure () then
+ logreport ("log", 0, "load", "Post-configuration hooks failed.")
+ end
+
+ initialize "features" --- font request and feature handling
+ loadmodule "letterspace" --- extra character kerning
+ loadmodule "auxiliary" --- additional high-level functionality
+
+ luaotfload.aux.start_rewrite_fontname () --- to be migrated to fontspec
+
+ logreport ("both", 0, "main",
+ "initialization completed in %0.3f seconds",
+ osgettimeofday() - starttime)
+----inspect (timing_info)
+end
-- vim:tw=79:sw=4:ts=4:et