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if not modules then modules = { } end modules ['luat-basics-gen'] = {
version = 1.100,
comment = "companion to luatex-*.tex",
author = "Hans Hagen, PRAGMA-ADE, Hasselt NL",
copyright = "PRAGMA ADE / ConTeXt Development Team",
license = "see context related readme files"
}
if context then
texio.write_nl("fatal error: this module is not for context")
os.exit()
end
local dummyfunction = function()
end
local dummyreporter = function(c)
return function(...)
(texio.reporter or texio.write_nl)(c .. " : " .. string.formatters(...))
end
end
statistics = {
register = dummyfunction,
starttiming = dummyfunction,
stoptiming = dummyfunction,
elapsedtime = nil,
}
directives = {
register = dummyfunction,
enable = dummyfunction,
disable = dummyfunction,
}
trackers = {
register = dummyfunction,
enable = dummyfunction,
disable = dummyfunction,
}
experiments = {
register = dummyfunction,
enable = dummyfunction,
disable = dummyfunction,
}
storage = { -- probably no longer needed
register = dummyfunction,
shared = { },
}
logs = {
new = dummyreporter,
reporter = dummyreporter,
messenger = dummyreporter,
report = dummyfunction,
}
callbacks = {
register = function(n,f) return callback.register(n,f) end,
}
utilities = {
storage = {
allocate = function(t) return t or { } end,
mark = function(t) return t or { } end,
},
}
characters = characters or {
data = { }
}
-- we need to cheat a bit here
texconfig.kpse_init = true
resolvers = resolvers or { } -- no fancy file helpers used
local remapper = {
otf = "opentype fonts",
ttf = "truetype fonts",
ttc = "truetype fonts",
dfont = "truetype fonts", -- "truetype dictionary",
cid = "cid maps",
cidmap = "cid maps",
fea = "font feature files",
pfa = "type1 fonts", -- this is for Khaled, in ConTeXt we don't use this!
pfb = "type1 fonts", -- this is for Khaled, in ConTeXt we don't use this!
afm = "afm",
}
function resolvers.findfile(name,fileformat)
name = string.gsub(name,"\\","/")
if not fileformat or fileformat == "" then
fileformat = file.suffix(name)
if fileformat == "" then
fileformat = "tex"
end
end
fileformat = string.lower(fileformat)
fileformat = remapper[fileformat] or fileformat
local found = kpse.find_file(name,fileformat)
if not found or found == "" then
found = kpse.find_file(name,"other text files")
end
return found
end
-- function resolvers.findbinfile(name,fileformat)
-- if not fileformat or fileformat == "" then
-- fileformat = file.suffix(name)
-- end
-- return resolvers.findfile(name,(fileformat and remapper[fileformat]) or fileformat)
-- end
resolvers.findbinfile = resolvers.findfile
function resolvers.loadbinfile(filename,filetype)
local data = io.loaddata(filename)
return true, data, #data
end
function resolvers.resolve(s)
return s
end
function resolvers.unresolve(s)
return s
end
-- Caches ... I will make a real stupid version some day when I'm in the
-- mood. After all, the generic code does not need the more advanced
-- ConTeXt features. Cached data is not shared between ConTeXt and other
-- usage as I don't want any dependency at all. Also, ConTeXt might have
-- different needs and tricks added.
--~ containers.usecache = true
caches = { }
local writable = nil
local readables = { }
local usingjit = jit
if not caches.namespace or caches.namespace == "" or caches.namespace == "context" then
caches.namespace = 'generic'
end
do
-- standard context tree setup
local cachepaths = kpse.expand_var('$TEXMFCACHE') or ""
-- quite like tex live or so (the weird $TEXMFCACHE test seems to be needed on miktex)
if cachepaths == "" or cachepaths == "$TEXMFCACHE" then
cachepaths = kpse.expand_var('$TEXMFVAR') or ""
end
-- this also happened to be used (the weird $TEXMFVAR test seems to be needed on miktex)
if cachepaths == "" or cachepaths == "$TEXMFVAR" then
cachepaths = kpse.expand_var('$VARTEXMF') or ""
end
-- and this is a last resort (hm, we could use TEMP or TEMPDIR)
if cachepaths == "" then
local fallbacks = { "TMPDIR", "TEMPDIR", "TMP", "TEMP", "HOME", "HOMEPATH" }
for i=1,#fallbacks do
cachepaths = os.getenv(fallbacks[i]) or ""
if cachepath ~= "" and lfs.isdir(cachepath) then
break
end
end
end
if cachepaths == "" then
cachepaths = "."
end
cachepaths = string.split(cachepaths,os.type == "windows" and ";" or ":")
for i=1,#cachepaths do
local cachepath = cachepaths[i]
if not lfs.isdir(cachepath) then
lfs.mkdirs(cachepath) -- needed for texlive and latex
if lfs.isdir(cachepath) then
texio.write(string.format("(created cache path: %s)",cachepath))
end
end
if file.is_writable(cachepath) then
writable = file.join(cachepath,"luatex-cache")
lfs.mkdir(writable)
writable = file.join(writable,caches.namespace)
lfs.mkdir(writable)
break
end
end
for i=1,#cachepaths do
if file.is_readable(cachepaths[i]) then
readables[#readables+1] = file.join(cachepaths[i],"luatex-cache",caches.namespace)
end
end
if not writable then
texio.write_nl("quiting: fix your writable cache path")
os.exit()
elseif #readables == 0 then
texio.write_nl("quiting: fix your readable cache path")
os.exit()
elseif #readables == 1 and readables[1] == writable then
texio.write(string.format("(using cache: %s)",writable))
else
texio.write(string.format("(using write cache: %s)",writable))
texio.write(string.format("(using read cache: %s)",table.concat(readables, " ")))
end
end
function caches.getwritablepath(category,subcategory)
local path = file.join(writable,category)
lfs.mkdir(path)
path = file.join(path,subcategory)
lfs.mkdir(path)
return path
end
function caches.getreadablepaths(category,subcategory)
local t = { }
for i=1,#readables do
t[i] = file.join(readables[i],category,subcategory)
end
return t
end
local function makefullname(path,name)
if path and path ~= "" then
return file.addsuffix(file.join(path,name),"lua"), file.addsuffix(file.join(path,name),usingjit and "lub" or "luc")
end
end
function caches.is_writable(path,name)
local fullname = makefullname(path,name)
return fullname and file.is_writable(fullname)
end
function caches.loaddata(paths,name)
for i=1,#paths do
local data = false
local luaname, lucname = makefullname(paths[i],name)
if lucname and lfs.isfile(lucname) then -- maybe also check for size
texio.write(string.format("(load luc: %s)",lucname))
data = loadfile(lucname)
if data then
data = data()
end
if data then
return data
else
texio.write(string.format("(loading failed: %s)",lucname))
end
end
if luaname and lfs.isfile(luaname) then
texio.write(string.format("(load lua: %s)",luaname))
data = loadfile(luaname)
if data then
data = data()
end
if data then
return data
end
end
end
end
function caches.savedata(path,name,data)
local luaname, lucname = makefullname(path,name)
if luaname then
texio.write(string.format("(save: %s)",luaname))
table.tofile(luaname,data,true)
if lucname and type(caches.compile) == "function" then
os.remove(lucname) -- better be safe
texio.write(string.format("(save: %s)",lucname))
caches.compile(data,luaname,lucname)
end
end
end
-- According to KH os.execute is not permitted in plain/latex so there is
-- no reason to use the normal context way. So the method here is slightly
-- different from the one we have in context. We also use different suffixes
-- as we don't want any clashes (sharing cache files is not that handy as
-- context moves on faster.)
--
-- Beware: serialization might fail on large files (so maybe we should pcall
-- this) in which case one should limit the method to luac and enable support
-- for execution.
-- function caches.compile(data,luaname,lucname)
-- local d = io.loaddata(luaname)
-- if not d or d == "" then
-- d = table.serialize(data,true) -- slow
-- end
-- if d and d ~= "" then
-- local f = io.open(lucname,'w')
-- if f then
-- local s = loadstring(d)
-- if s then
-- f:write(string.dump(s,true))
-- end
-- f:close()
-- end
-- end
-- end
function caches.compile(data,luaname,lucname)
local d = io.loaddata(luaname)
if not d or d == "" then
d = table.serialize(data,true) -- slow
end
if d and d ~= "" then
local f = io.open(lucname,'wb')
if f then
local s = loadstring(d)
if s then
f:write(string.dump(s,true))
end
f:close()
end
end
end
--
function table.setmetatableindex(t,f)
setmetatable(t,{ __index = f })
end
|