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
|
--
-- This is file `oberdiek.luacolor-pre065.lua',
-- generated with the docstrip utility.
--
-- The original source files were:
--
-- luacolor.dtx (with options: `lua,pre065')
--
-- This is a generated file.
--
-- Project: luacolor
-- Version: 2011/11/01 v1.8
--
-- Copyright (C) 2007, 2009-2011 by
-- Heiko Oberdiek <heiko.oberdiek at googlemail.com>
--
-- This work may be distributed and/or modified under the
-- conditions of the LaTeX Project Public License, either
-- version 1.3c of this license or (at your option) any later
-- version. This version of this license is in
-- http://www.latex-project.org/lppl/lppl-1-3c.txt
-- and the latest version of this license is in
-- http://www.latex-project.org/lppl.txt
-- and version 1.3 or later is part of all distributions of
-- LaTeX version 2005/12/01 or later.
--
-- This work has the LPPL maintenance status "maintained".
--
-- This Current Maintainer of this work is Heiko Oberdiek.
--
-- This work consists of the main source file luacolor.dtx
-- and the derived files
-- luacolor.sty, luacolor.pdf, luacolor.ins, luacolor.drv,
-- luacolor-test1.tex, luacolor-test2.tex, luacolor-test3.tex,
-- oberdiek.luacolor.lua, luacolor.lua,
-- oberdiek.luacolor-pre065.lua, luacolor-pre065.lua.
--
module("oberdiek.luacolor", package.seeall)
function getversion()
tex.write("2011/11/01 v1.8")
end
local ifpdf
if tonumber(tex.pdfoutput) > 0 then
ifpdf = true
else
ifpdf = false
end
local prefix
local prefixes = {
dvips = "color ",
dvipdfm = "pdf:sc ",
truetex = "textcolor:",
pctexps = "ps::",
}
local patterns = {
["^color "] = "dvips",
["^pdf: *begincolor "] = "dvipdfm",
["^pdf: *bcolor "] = "dvipdfm",
["^pdf: *bc "] = "dvipdfm",
["^pdf: *setcolor "] = "dvipdfm",
["^pdf: *scolor "] = "dvipdfm",
["^pdf: *sc "] = "dvipdfm",
["^textcolor:"] = "truetex",
["^ps::"] = "pctexps",
}
local function info(msg, term)
local target = "log"
if term then
target = "term and log"
end
texio.write_nl(target, "Package luacolor info: " .. msg .. ".")
texio.write_nl(target, "")
end
function dvidetect()
local v = tex.box[0]
assert(v.id == node.id("hlist"))
for v in node.traverse_id(node.id("whatsit"), v.list) do
if v and v.subtype == node.subtype("special") then
local data = v.data
for pattern, driver in pairs(patterns) do
if string.find(data, pattern) then
prefix = prefixes[driver]
tex.write(driver)
return
end
end
info("\\special{" .. data .. "}", true)
return
end
end
info("Missing \\special", true)
end
local map = {
n = 0,
}
function get(color)
tex.write("" .. getvalue(color))
end
function getvalue(color)
local n = map[color]
if not n then
n = map.n + 1
map.n = n
map[n] = color
map[color] = n
end
return n
end
local attribute
function setattribute(attr)
attribute = attr
end
function getattribute()
return attribute
end
local LIST = 1
local LIST_LEADERS = 2
local COLOR = 3
local RULE = node.id("rule")
local node_types = {
[node.id("hlist")] = LIST,
[node.id("vlist")] = LIST,
[node.id("rule")] = COLOR,
[node.id("glyph")] = COLOR,
[node.id("disc")] = COLOR,
[node.id("whatsit")] = {
[node.subtype("special")] = COLOR,
[node.subtype("pdf_literal")] = COLOR,
[node.subtype("pdf_refximage")] = COLOR,
},
[node.id("glue")] =
function(n)
if n.subtype >= 100 then -- leaders
if n.leader.id == RULE then
return COLOR
else
return LIST_LEADERS
end
end
end,
}
local function get_type(n)
local ret = node_types[n.id]
if type(ret) == 'table' then
ret = ret[n.subtype]
end
if type(ret) == 'function' then
ret = ret(n)
end
return ret
end
local mode = 2 -- luatex.pdfliteral.direct
local WHATSIT = node.id("whatsit")
local SPECIAL = 3
local PDFLITERAL = 8
local DRY_FALSE = false
local DRY_TRUE = true
local function traverse(list, color, dry)
if not list then
return color
end
if get_type(list) ~= LIST then
texio.write_nl("!!! Error: Wrong list type: " .. node.type(list.id))
return color
end
local head = list.list
for n in node.traverse(head) do
local t = get_type(n)
if t == LIST then
color = traverse(n, color, dry)
elseif t == LIST_LEADERS then
local color_after = traverse(n.leader, color, DRY_TRUE)
if color == color_after then
traverse(n.leader, color, DRY_FALSE or dry)
else
traverse(n.leader, '', DRY_FALSE or dry)
color = ''
end
elseif t == COLOR then
local v = node.has_attribute(n, attribute)
if v then
local newColor = map[v]
if newColor ~= color then
color = newColor
if dry == DRY_FALSE then
local newNode
if ifpdf then
newNode = node.new(WHATSIT, PDFLITERAL)
newNode.mode = mode
newNode.data = color
else
newNode = node.new(WHATSIT, SPECIAL)
newNode.data = prefix .. color
end
if head == n then
newNode.next = head
local old_prev = head.prev
head.prev = newNode
head = newNode
head.prev = old_prev
else
head = node.insert_before(head, n, newNode)
end
end
end
end
end
end
list.list = head
return color
end
function process(box)
local color = ""
local list = tex.getbox(box)
traverse(list, color, DRY_FALSE)
end
--
-- End of File `oberdiek.luacolor-pre065.lua'.
|
