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
|
if not modules then modules = { } end modules ['luatex-fonts-nod'] = {
version = 1.001,
comment = "companion to luatex-fonts.lua",
author = "Hans Hagen, PRAGMA-ADE, Hasselt NL",
copyright = "PRAGMA ADE / ConTeXt Development Team",
license = "see context related readme files"
}
if context then
texio.write_nl("fatal error: this module is not for context")
os.exit()
end
-- Don't depend on code here as it is only needed to complement the
-- font handler code.
-- Attributes:
if tex.attribute[0] ~= 0 then
texio.write_nl("log","!")
texio.write_nl("log","! Attribute 0 is reserved for ConTeXt's font feature management and has to be")
texio.write_nl("log","! set to zero. Also, some attributes in the range 1-255 are used for special")
texio.write_nl("log","! purposes so setting them at the TeX end might break the font handler.")
texio.write_nl("log","!")
tex.attribute[0] = 0 -- else no features
end
attributes = { }
attributes.unsetvalue = -0x7FFFFFFF
local numbers, last = { }, 127
function attributes.private(name)
local number = numbers[name]
if not number then
if last < 255 then
last = last + 1
end
number = last
numbers[name] = number
end
return number
end
-- Nodes:
nodes = { }
nodes.pool = { }
nodes.handlers = { }
local nodecodes = { } for k,v in next, node.types () do nodecodes[string.gsub(v,"_","")] = k end
local whatcodes = { } for k,v in next, node.whatsits() do whatcodes[string.gsub(v,"_","")] = k end
local glyphcodes = { [0] = "character", "glyph", "ligature", "ghost", "left", "right" }
nodes.nodecodes = nodecodes
nodes.whatcodes = whatcodes
nodes.whatsitcodes = whatcodes
nodes.glyphcodes = glyphcodes
local free_node = node.free
local remove_node = node.remove
local new_node = node.new
nodes.handlers.protectglyphs = node.protect_glyphs
nodes.handlers.unprotectglyphs = node.unprotect_glyphs
function nodes.remove(head, current, free_too)
local t = current
head, current = remove_node(head,current)
if t then
if free_too then
free_node(t)
t = nil
else
t.next, t.prev = nil, nil
end
end
return head, current, t
end
function nodes.delete(head,current)
return nodes.remove(head,current,true)
end
nodes.before = node.insert_before
nodes.after = node.insert_after
function nodes.pool.kern(k)
local n = new_node("kern",1)
n.kern = k
return n
end
|
