1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
|
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"
}
--~ local ctxcatcodes = tex.ctxcatcodes
--[[ldx--
<p>We cannot load anything yet. However what we will do us reserve a fewtables.
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 { } -- might be used
thirddata = thirddata or { } -- might be used
moduledata = moduledata or { } -- might be used
document = document or { }
parametersets = parametersets or { } -- experimental
--[[ldx--
<p>These can be used/set by the caller program; <t>mtx-context.lua</t> does it.</p>
--ldx]]--
document.arguments = document.arguments or { }
document.files = document.files or { }
--[[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 debug = require "debug"
local string, table, lpeg, math, io, system = string, table, lpeg, math, io, system
local next, setfenv = next, setfenv or debug.setfenv
local format = string.format
local global = _G
global.global = global
local dummy = function() end
local protected = {
-- global table
global = global,
-- user tables
userdata = userdata,
moduledata = moduledata,
thirddata = thirddata,
document = document,
-- reserved
protect = dummy,
unprotect = dummy,
-- luatex
tex = tex,
-- lua
string = string,
table = table,
lpeg = lpeg,
math = math,
io = io,
system = system,
}
userdata, thirddata, moduledata = nil, nil, nil
if not setfenv then
texio.write_nl("warning: we need to fix setfenv by using 'load in' or '_ENV'")
end
function protect(name)
if name == "isolateddata" then
local t = { }
for k, v in next, protected do
t[k] = v
end
setfenv(2,t)
else
if not name then
name = "shareddata"
end
local t = global[name]
if not t then
t = { }
for k, v in next, protected do
t[k] = v
end
global[name] = t
end
setfenv(2,t)
end
end
lua.numbers = { }
lua.messages = { }
function lua.registername(name,message)
local lnn = lua.numbers[name]
if not lnn then
lnn = #lua.messages + 1
lua.messages[lnn] = message
lua.numbers[name] = lnn
end
lua.name[lnn] = message
tex.write(lnn)
end
--~ function lua.checknames()
--~ lua.name[0] = "ctx"
--~ for k, v in next, lua.messages do
--~ lua.name[k] = v
--~ end
--~ end
storage.register("lua/numbers", lua.numbers, "lua.numbers")
storage.register("lua/messages", lua.messages, "lua.messages")
--~ local arguments, files = document.arguments, document.files -- set later
function document.setargument(key,value)
document.arguments[key] = value
end
function document.setdefaultargument(key,default)
local v = document.arguments[key]
if v == nil or v == "" then
document.arguments[key] = default
end
end
function document.getargument(key,default)
local v = document.arguments[key]
if type(v) == "boolean" then
v = (v and "yes") or "no"
document.arguments[key] = v
end
tex.sprint(tex.ctxcatcodes,v or default or "")
end
function document.setfilename(i,name)
document.files[tonumber(i)] = name
end
function document.getfilename(i)
tex.sprint(tex.ctxcatcodes,document.files[i] or "")
end
|