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
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
|
if not modules then modules = { } end modules ['driv-ini'] = {
version = 1.001,
comment = "companion to driv-ini.mkiv",
author = "Hans Hagen, PRAGMA-ADE, Hasselt NL",
copyright = "PRAGMA ADE / ConTeXt Development Team",
license = "see context related readme files"
}
local type = type
local addsuffix = file.addsuffix
local setmetatableindex = table.setmetatableindex
local formatters = string.formatters
local starttiming = statistics.starttiming
local stoptiming = statistics.stoptiming
local report = logs.reporter("drivers")
local instances = { }
local helpers = { }
local converters = { }
local prepared = { }
local wrappedup = { }
local cleanedup = { }
local currentdriver = "default"
local currentinstance = nil
local shipout = tex.shipout
local texgetbox = tex.getbox
local texgetcount = tex.getcount
function converters.engine(driver,boxnumber,mode,number,specification)
return shipout(boxnumber)
end
local prepare = nil
local convert = nil
local wrapup = nil
local cleanup = nil
local outputfilename = nil
drivers = drivers or {
instances = instances,
helpers = helpers,
converters = converters,
lmtxversion = 0.10,
report = report,
}
local dummy = function() end
local defaulthandlers = {
prepare = dummy,
initialize = dummy,
finalize = dummy,
updatefontstate = dummy,
wrapup = dummy,
cleanup = dummy,
convert = dummy,
outputfilename = dummy,
}
function drivers.install(specification)
local name = specification.name
if not name then
report("missing driver name")
return
end
local actions = specification.actions
if not actions then
report("no actions for driver %a",name)
return
end
local flushers = specification.flushers
if not flushers then
report("no flushers for driver %a",name)
return
end
-- report("driver %a is installed",name)
setmetatableindex(actions, defaulthandlers)
setmetatableindex(flushers, function() return dummy end)
instances[name] = specification
end
function drivers.convert(boxnumber)
if currentinstance then
callbacks.functions.start_page_number()
starttiming(drivers)
convert(currentinstance,boxnumber,texgetcount("realpageno"))
stoptiming(drivers)
callbacks.functions.stop_page_number()
end
end
function drivers.outputfilename()
if currentinstance then
return outputfilename(currentinstance)
end
end
luatex.wrapup(function()
if currentinstance and wrapup and not wrappedup[currentdriver] then
starttiming(drivers)
wrapup(currentinstance)
stoptiming(drivers)
wrappedup[currentdriver] = true
cleanedup[currentdriver] = true
end
end)
luatex.cleanup(function()
if currentinstance and cleanup and not cleanedup[currentdriver] then
starttiming(drivers)
cleanup(currentinstance)
stoptiming(drivers)
wrappedup[currentdriver] = true
cleanedup[currentdriver] = true
end
end)
function drivers.enable(name)
if name ~= currentdriver then
if currentinstance then
starttiming(drivers)
cleanup(currentinstance)
stoptiming(drivers)
end
currentdriver = name or "default"
currentinstance = instances[currentdriver]
if currentinstance then
local actions = currentinstance.actions
prepare = actions.prepare
wrapup = actions.wrapup
cleanup = actions.cleanup
convert = actions.convert
outputfilename = actions.outputfilename
--
if prepare and not prepared[currentdriver] then
starttiming(drivers)
prepare(currentinstance)
stoptiming(drivers)
prepared[currentdriver] = true
end
else
report("bad driver")
end
end
end
statistics.register("driver time",function()
return statistics.elapsedseconds(drivers)
end)
interfaces.implement {
name = "shipoutpage",
arguments = "integer",
actions = drivers.convert,
}
interfaces.implement {
name = "enabledriver",
arguments = "string",
actions = drivers.enable,
}
-- The default driver:
do
local filename = nil
drivers.install {
name = "default",
actions = {
convert = drivers.converters.engine,
outputfilename = function(driver)
if not filename then
filename = addsuffix(tex.jobname,"pdf")
end
return filename
end,
},
flushers = {
-- we always need this entry
},
}
end
-- No driver:
do
drivers.install {
name = "none",
actions = { },
flushers = { },
}
end
do
local function prepare(driver)
converter = drivers.converters.lmtx
end
local function convert(driver,boxnumber,pagenumber)
converter(driver,texgetbox(boxnumber),"page",pagenumber)
end
drivers.install {
name = "empty",
actions = {
prepare = prepare,
convert = convert,
},
flushers = { },
}
end
--
setmetatableindex(instances,function() return instances.default end)
-- for now:
drivers.enable("default")
-- helpers
local s_matrix_0 = "1 0 0 1"
local f_matrix_2 = formatters["%.6F 0 0 %.6F"]
local f_matrix_4 = formatters["%.6F %.6F %.6F %.6F"]
directives.register("pdf.stripzeros",function()
f_matrix_2 = formatters["%.6N 0 0 %.6N"]
f_matrix_4 = formatters["%.6N %.6N %.6N %.6N"]
end)
function helpers.tomatrix(rx,sx,sy,ry,tx,ty) -- todo: tx ty
if type(rx) == "string" then
return rx
else
if not rx then
rx = 1
elseif rx == 0 then
rx = 0.0001
end
if not ry then
ry = 1
elseif ry == 0 then
ry = 0.0001
end
if not sx then
sx = 0
end
if not sy then
sy = 0
end
if sx == 0 and sy == 0 then
if rx == 1 and ry == 1 then
return s_matrix_0
else
return f_matrix_2(rx,ry)
end
else
return f_matrix_4(rx,sx,sy,ry)
end
end
end
|
