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
|
if not modules then modules = { } end modules ['back-ini'] = {
version = 1.001,
comment = "companion to back-ini.mkiv",
author = "Hans Hagen, PRAGMA-ADE, Hasselt NL",
copyright = "PRAGMA ADE / ConTeXt Development Team",
license = "see context related readme files"
}
backends = backends or { }
local trace_backend = false local function nothing() return nil end
local report_backends = logs.new("backends")
backends.nothing = nothing
backends.nodeinjections = {
rgbcolor = nothing,
cmykcolor = nothing,
graycolor = nothing,
spotcolor = nothing,
transparency = nothing,
overprint = nothing,
knockout = nothing,
positive = nothing,
negative = nothing,
effect = nothing,
startlayer = nothing,
stoplayer = nothing,
switchlayer = nothing,
reference = nothing,
destination = nothing,
}
backends.codeinjections = {
prerollreference = nothing,
insertmovie = nothing,
insertsound = nothing,
presetsymbollist = nothing,
registersymbol = nothing,
registeredsymbol = nothing,
registercomment = nothing,
embedfile = nothing,
attachfile = nothing,
adddocumentinfo = nothing,
setupidentity = nothing,
setpagetransition = nothing,
defineviewerlayer = nothing,
addbookmarks = nothing,
addtransparencygroup = nothing,
typesetfield = nothing,
doiffieldelse = nothing,
doiffieldgroupelse = nothing,
definefield = nothing,
clonefield = nothing,
definefieldset = nothing,
getfieldgroup = nothing,
setformsmethod = nothing,
getdefaultfieldvalue = nothing,
setupcanvas = nothing,
initializepage = nothing,
initializedocument = nothing,
finalizepage = nothing,
finalizedocument = nothing,
flushpageactions = nothing,
flushdocumentactions = nothing,
insertrenderingwindow = nothing,
processrendering = nothing,
kindofrendering = nothing,
flushrenderingwindow = nothing,
setfigurecolorspace = nothing,
setfigurealternative = nothing,
}
backends.registrations = {
grayspotcolor = nothing,
rgbspotcolor = nothing,
cmykspotcolor = nothing,
grayindexcolor = nothing,
rgbindexcolor = nothing,
cmykindexcolor = nothing,
spotcolorname = nothing,
transparency = nothing,
}
local nodeinjections = backends.nodeinjections
local codeinjections = backends.codeinjections
local registrations = backends.registrations
backends.current = "unknown"
function backends.install(what)
if type(what) == "string" then
local backend = backends[what]
if backend then
if trace_backend then
report_backends("initializing backend %s (%s)",what,backend.comment or "no comment")
end
backends.current = what
for _, category in next, { "nodeinjections", "codeinjections", "registrations"} do
local plugin = backend[category]
if plugin then
local whereto = backends[category]
for name, meaning in next, whereto do
if plugin[name] then
whereto[name] = plugin[name]
-- report_backends("installing function %s in category %s of %s",name,category,what)
elseif trace_backend then
report_backends("no function %s in category %s of %s",name,category,what)
end
end
elseif trace_backend then
report_backends("no category %s in %s",category,what)
end
end
backends.helpers = backend.helpers
elseif trace_backend then
report_backends("no backend named %s",what)
end
end
end
statistics.register("used backend", function()
local bc = backends.current
if bc ~= "unknown" then
return string.format("%s (%s)",bc,backends[bc].comment or "no comment")
else
return nil
end
end)
|
