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-- This is file `lualibs.lua',
module('lualibs', package.seeall)
local lualibs_module = {
name = "lualibs",
version = 1.01,
date = "2013/04/10",
description = "Lua additional functions.",
author = "Hans Hagen, PRAGMA-ADE, Hasselt NL & Elie Roux",
copyright = "PRAGMA ADE / ConTeXt Development Team",
license = "See ConTeXt's mreadme.pdf for the license",
}
--- TODO should be set in some global config
local prefer_merged = true ---false
local load_extended = true ---false
if config and config.lualibs then
local cl_prefer_merged = config.lualibs.prefer_merged
local cl_load_extended = config.lualibs.load_extended
if cl_prefer_merged ~= nil then prefer_merged = cl_prefer_merged end
if cl_load_extended ~= nil then load_extended = cl_load_extended end
end
local lpeg, kpse = lpeg, kpse
local dofile = dofile
local lpegmatch = lpeg.match
local stringformat = string.format
local find_file, error, warn, info
if luatexbase and luatexbase.provides_module then
error, warn, info = luatexbase.provides_module(lualibs_module)
else
error, warn, info = texio.write_nl, texio.write_nl, texio.write_nl -- stub
end
if luatexbase and luatexbase.find_file then
find_file = luatexbase.find_file
else
kpse.set_program_name"luatex"
find_file = kpse.find_file
end
loadmodule = _G.loadmodule or function (name, t)
if not t then t = "library" end
local filepath = kpse.find_file(name, "lua")
if not filepath or filepath == "" then
warn(stringformat("Could not locate %s “%s”.", t, name))
return false
end
dofile(filepath)
return true
end
local merged_suffix = "-merged.lua"
local p_suffix = lpeg.P".lua" * lpeg.P(-1)
local p_nosuffix = (1 - p_suffix)^0
local p_hassuffix = (p_nosuffix) * p_suffix
local p_stripsuffix = lpeg.C(p_nosuffix) * p_suffix
local loadmerged = function (basename)
basename = lualibs_module.name .. "-" .. basename
if not lpegmatch(p_hassuffix, basename) then -- force .lua suffix
basename = basename .. ".lua"
end
local res
if prefer_merged then
local mergedname = lpegmatch(p_stripsuffix, basename) .. merged_suffix
res = loadmodule(mergedname, "merged package")
else
info"Ignoring merged packages."
end
if not res then -- package not present, load individual libs
info(stringformat("Falling back to “%s”.", basename))
res = loadmodule(basename, "metapackage")
end
if res == false then
error(stringformat("Could not load metapackage “%s”.", basename))
end
end
--[[doc--
The separation of the “basic” from the “extended” sets coincides with
the split into luat-bas.mkiv and luat-lib.mkiv.
--doc]]--
loadmerged"basic.lua"
--inspect(table.keys(table))
--inspect(table.keys(string))
if load_extended == true then
loadmerged"extended.lua"
end
-- vim:tw=71:sw=2:ts=2:expandtab
-- End of File `lualibs-basic.lua'.
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