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-rw-r--r--tex/context/base/luat-ini.lua412
1 files changed, 206 insertions, 206 deletions
diff --git a/tex/context/base/luat-ini.lua b/tex/context/base/luat-ini.lua
index d4eee7123..587214b93 100644
--- a/tex/context/base/luat-ini.lua
+++ b/tex/context/base/luat-ini.lua
@@ -1,206 +1,206 @@
-if not modules then modules = { } end modules ['luat-ini'] = {
- version = 1.001,
- comment = "companion to luat-lib.mkiv",
- author = "Hans Hagen, PRAGMA-ADE, Hasselt NL",
- copyright = "PRAGMA ADE / ConTeXt Development Team",
- license = "see context related readme files"
-}
-
--- rather experimental down here ... adapted to lua 5.2 ... but still
--- experimental
-
-local debug = require("debug")
-
-local string, table, lpeg, math, io, system = string, table, lpeg, math, io, system
-local rawset, rawget, next, setmetatable = rawset, rawget, next, setmetatable
-
---[[ldx--
-<p>We cannot load anything yet. However what we will do us reserve a few tables.
-These can be used for runtime user data or third party modules and will not be
-cluttered by macro package code.</p>
---ldx]]--
-
-userdata = userdata or { } -- for users (e.g. functions etc)
-thirddata = thirddata or { } -- only for third party modules
-moduledata = moduledata or { } -- only for development team
-documentdata = documentdata or { } -- for users (e.g. raw data)
-parametersets = parametersets or { } -- experimental for team
-
-table.setmetatableindex(moduledata,table.autokey)
-table.setmetatableindex(thirddata, table.autokey)
-
---[[ldx--
-<p>Please create a namespace within these tables before using them!</p>
-
-<typing>
-userdata ['my.name'] = { }
-thirddata['tricks' ] = { }
-</typing>
---ldx]]--
-
---[[ldx--
-<p>We could cook up a readonly model for global tables but it makes more sense
-to invite users to use one of the predefined namespaces. One can redefine the
-protector. After all, it's just a lightweight suggestive system, not a
-watertight one.</p>
---ldx]]--
-
-local global = _G
-global.global = global
-
-local dummy = function() end
-
---[[ldx--
-<p>Another approach is to freeze tables by using a metatable, this will be
-implemented stepwise.</p>
---ldx]]--
-
--- moduledata : no need for protection (only for developers)
--- isolatedata : full protection
--- userdata : protected
--- thirddata : protected
-
---[[ldx--
-<p>We could have a metatable that automaticaly creates a top level namespace.</p>
---ldx]]--
-
-local luanames = lua.name -- luatex itself
-
-lua.numbers = lua.numbers or { } local numbers = lua.numbers
-lua.messages = lua.messages or { } local messages = lua.messages
-
-storage.register("lua/numbers", numbers, "lua.numbers" )
-storage.register("lua/messages", messages, "lua.messages")
-
-local setfenv = setfenv or debug.setfenv -- < 5.2
-
-if setfenv then
-
- local protected = {
- -- global table
- global = global,
- -- user tables
- -- moduledata = moduledata,
- userdata = userdata,
- thirddata = thirddata,
- documentdata = documentdata,
- -- reserved
- protect = dummy,
- unprotect = dummy,
- -- luatex
- tex = tex,
- -- lua
- string = string,
- table = table,
- lpeg = lpeg,
- math = math,
- io = io,
- file = file,
- bit32 = bit32,
- --
- context = context,
- }
-
- local protect_full = function(name)
- local t = { }
- for k, v in next, protected do
- t[k] = v
- end
- return t
- end
-
- local protect_part = function(name) -- adds
- local t = rawget(global,name)
- if not t then
- t = { }
- for k, v in next, protected do
- t[k] = v
- end
- rawset(global,name,t)
- end
- return t
- end
-
- protect = function(name)
- if name == "isolateddata" then
- setfenv(2,protect_full(name))
- else
- setfenv(2,protect_part(name or "shareddata"))
- end
- end
-
- function lua.registername(name,message)
- local lnn = lua.numbers[name]
- if not lnn then
- lnn = #messages + 1
- messages[lnn] = message
- numbers[name] = lnn
- end
- luanames[lnn] = message
- context(lnn)
- -- initialize once
- if name ~= "isolateddata" then
- protect_full(name or "shareddata")
- end
- end
-
-elseif libraries then -- assume >= 5.2
-
- local shared
-
- protect = function(name)
- if not shared then
- -- e.g. context is not yet known
- local public = {
- global = global,
- -- moduledata = moduledata,
- userdata = userdata,
- thirddata = thirddata,
- documentdata = documentdata,
- protect = dummy,
- unprotect = dummy,
- context = context,
- }
- --
- for k, v in next, libraries.builtin do public[k] = v end
- for k, v in next, libraries.functions do public[k] = v end
- for k, v in next, libraries.obsolete do public[k] = nil end
- --
- shared = { __index = public }
- protect = function(name)
- local t = global[name] or { }
- setmetatable(t,shared) -- set each time
- return t
- end
- end
- return protect(name)
- end
-
- function lua.registername(name,message)
- local lnn = lua.numbers[name]
- if not lnn then
- lnn = #messages + 1
- messages[lnn] = message
- numbers[name] = lnn
- end
- luanames[lnn] = message
- context(lnn)
- end
-
-else
-
- protect = dummy
-
- function lua.registername(name,message)
- local lnn = lua.numbers[name]
- if not lnn then
- lnn = #messages + 1
- messages[lnn] = message
- numbers[name] = lnn
- end
- luanames[lnn] = message
- context(lnn)
- end
-
-end
-
+if not modules then modules = { } end modules ['luat-ini'] = {
+ version = 1.001,
+ comment = "companion to luat-lib.mkiv",
+ author = "Hans Hagen, PRAGMA-ADE, Hasselt NL",
+ copyright = "PRAGMA ADE / ConTeXt Development Team",
+ license = "see context related readme files"
+}
+
+-- rather experimental down here ... adapted to lua 5.2 ... but still
+-- experimental
+
+local debug = require("debug")
+
+local string, table, lpeg, math, io, system = string, table, lpeg, math, io, system
+local rawset, rawget, next, setmetatable = rawset, rawget, next, setmetatable
+
+--[[ldx--
+<p>We cannot load anything yet. However what we will do us reserve a few tables.
+These can be used for runtime user data or third party modules and will not be
+cluttered by macro package code.</p>
+--ldx]]--
+
+userdata = userdata or { } -- for users (e.g. functions etc)
+thirddata = thirddata or { } -- only for third party modules
+moduledata = moduledata or { } -- only for development team
+documentdata = documentdata or { } -- for users (e.g. raw data)
+parametersets = parametersets or { } -- experimental for team
+
+table.setmetatableindex(moduledata,table.autokey)
+table.setmetatableindex(thirddata, table.autokey)
+
+--[[ldx--
+<p>Please create a namespace within these tables before using them!</p>
+
+<typing>
+userdata ['my.name'] = { }
+thirddata['tricks' ] = { }
+</typing>
+--ldx]]--
+
+--[[ldx--
+<p>We could cook up a readonly model for global tables but it makes more sense
+to invite users to use one of the predefined namespaces. One can redefine the
+protector. After all, it's just a lightweight suggestive system, not a
+watertight one.</p>
+--ldx]]--
+
+local global = _G
+global.global = global
+
+local dummy = function() end
+
+--[[ldx--
+<p>Another approach is to freeze tables by using a metatable, this will be
+implemented stepwise.</p>
+--ldx]]--
+
+-- moduledata : no need for protection (only for developers)
+-- isolatedata : full protection
+-- userdata : protected
+-- thirddata : protected
+
+--[[ldx--
+<p>We could have a metatable that automaticaly creates a top level namespace.</p>
+--ldx]]--
+
+local luanames = lua.name -- luatex itself
+
+lua.numbers = lua.numbers or { } local numbers = lua.numbers
+lua.messages = lua.messages or { } local messages = lua.messages
+
+storage.register("lua/numbers", numbers, "lua.numbers" )
+storage.register("lua/messages", messages, "lua.messages")
+
+local setfenv = setfenv or debug.setfenv -- < 5.2
+
+if setfenv then
+
+ local protected = {
+ -- global table
+ global = global,
+ -- user tables
+ -- moduledata = moduledata,
+ userdata = userdata,
+ thirddata = thirddata,
+ documentdata = documentdata,
+ -- reserved
+ protect = dummy,
+ unprotect = dummy,
+ -- luatex
+ tex = tex,
+ -- lua
+ string = string,
+ table = table,
+ lpeg = lpeg,
+ math = math,
+ io = io,
+ file = file,
+ bit32 = bit32,
+ --
+ context = context,
+ }
+
+ local protect_full = function(name)
+ local t = { }
+ for k, v in next, protected do
+ t[k] = v
+ end
+ return t
+ end
+
+ local protect_part = function(name) -- adds
+ local t = rawget(global,name)
+ if not t then
+ t = { }
+ for k, v in next, protected do
+ t[k] = v
+ end
+ rawset(global,name,t)
+ end
+ return t
+ end
+
+ protect = function(name)
+ if name == "isolateddata" then
+ setfenv(2,protect_full(name))
+ else
+ setfenv(2,protect_part(name or "shareddata"))
+ end
+ end
+
+ function lua.registername(name,message)
+ local lnn = lua.numbers[name]
+ if not lnn then
+ lnn = #messages + 1
+ messages[lnn] = message
+ numbers[name] = lnn
+ end
+ luanames[lnn] = message
+ context(lnn)
+ -- initialize once
+ if name ~= "isolateddata" then
+ protect_full(name or "shareddata")
+ end
+ end
+
+elseif libraries then -- assume >= 5.2
+
+ local shared
+
+ protect = function(name)
+ if not shared then
+ -- e.g. context is not yet known
+ local public = {
+ global = global,
+ -- moduledata = moduledata,
+ userdata = userdata,
+ thirddata = thirddata,
+ documentdata = documentdata,
+ protect = dummy,
+ unprotect = dummy,
+ context = context,
+ }
+ --
+ for k, v in next, libraries.builtin do public[k] = v end
+ for k, v in next, libraries.functions do public[k] = v end
+ for k, v in next, libraries.obsolete do public[k] = nil end
+ --
+ shared = { __index = public }
+ protect = function(name)
+ local t = global[name] or { }
+ setmetatable(t,shared) -- set each time
+ return t
+ end
+ end
+ return protect(name)
+ end
+
+ function lua.registername(name,message)
+ local lnn = lua.numbers[name]
+ if not lnn then
+ lnn = #messages + 1
+ messages[lnn] = message
+ numbers[name] = lnn
+ end
+ luanames[lnn] = message
+ context(lnn)
+ end
+
+else
+
+ protect = dummy
+
+ function lua.registername(name,message)
+ local lnn = lua.numbers[name]
+ if not lnn then
+ lnn = #messages + 1
+ messages[lnn] = message
+ numbers[name] = lnn
+ end
+ luanames[lnn] = message
+ context(lnn)
+ end
+
+end
+
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