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
|
if not modules then modules = { } end modules ['typo-cln'] = {
version = 1.001,
comment = "companion to typo-cln.mkiv",
author = "Hans Hagen, PRAGMA-ADE, Hasselt NL",
copyright = "PRAGMA ADE / ConTeXt Development Team",
license = "see context related readme files"
}
-- This quick and dirty hack took less time than listening to a CD (In
-- this case Dream Theaters' Octavium). Of course extensions will take
-- more time.
local tonumber = tonumber
local utfbyte = utf.byte
local trace_cleaners = false trackers.register("typesetters.cleaners", function(v) trace_cleaners = v end)
local trace_autocase = false trackers.register("typesetters.cleaners.autocase",function(v) trace_autocase = v end)
local report_cleaners = logs.reporter("nodes","cleaners")
local report_autocase = logs.reporter("nodes","autocase")
typesetters.cleaners = typesetters.cleaners or { }
local cleaners = typesetters.cleaners
local variables = interfaces.variables
local nodecodes = nodes.nodecodes
local enableaction = nodes.tasks.enableaction
local texsetattribute = tex.setattribute
local nuts = nodes.nuts
local getattr = nuts.getattr
local setattr = nuts.setattr
local setchar = nuts.setchar
local nextglyph = nuts.traversers.glyph
local unsetvalue = attributes.unsetvalue
local glyph_code = nodecodes.glyph
local uccodes = characters.uccodes
local a_cleaner = attributes.private("cleaner")
local resetter = { -- this will become an entry in char-def
[utfbyte(".")] = true
}
-- Contrary to the casing code we need to keep track of a state.
-- We could extend the casing code with a status tracker but on
-- the other hand we might want to apply casing afterwards. So,
-- cleaning comes first.
function cleaners.handler(head)
local inline = false
for n, char, font in nextglyph, head do
if resetter[char] then
inline = false
elseif not inline then
local a = getattr(n,a_cleaner)
if a == 1 then -- currently only one cleaner so no need to be fancy
local upper = uccodes[char]
if type(upper) == "table" then
-- some day, not much change that \SS ends up here
else
setchar(n,upper)
if trace_autocase then
report_autocase("")
end
end
end
inline = true
end
end
return head
end
-- see typo-cap for a more advanced settings handler .. not needed now
local enabled = false
function cleaners.set(n)
if n == variables.reset or not tonumber(n) or n == 0 then
texsetattribute(a_cleaner,unsetvalue)
else
if not enabled then
enableaction("processors","typesetters.cleaners.handler")
if trace_cleaners then
report_cleaners("enabling cleaners")
end
enabled = true
end
texsetattribute(a_cleaner,tonumber(n))
end
end
-- interface
interfaces.implement {
name = "setcharactercleaning",
actions = cleaners.set,
arguments = "string"
}
|
