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
|
if not modules then modules = { } end modules ['m-nodechart'] = {
version = 1.001,
comment = "companion to m-nodechart.mkiv",
author = "Hans Hagen, PRAGMA-ADE, Hasselt NL",
copyright = "PRAGMA ADE / ConTeXt Development Team",
license = "see context related readme files"
}
local format = string.format
local points = number.nopts
local ptfactor = number.dimenfactors.pt
local nodecodes = nodes.nodecodes
local kerncodes = nodes.kerncodes
local penaltycodes = nodes.penaltycodes
local gluecodes = nodes.gluecodes
local whatsitcodes = nodes.whatsitcodes
moduledata.charts = moduledata.charts or { }
moduledata.charts.nodes = moduledata.charts.nodes or { }
local formatters = { }
-- subtype font char lang left right uchyph components xoffset yoffset width height depth
function formatters.glyph(n,comment)
return format("\\doFLOWglyphnode{%s}{%s}{%s}{%s}{U+%05X}",comment,n.subtype,n.font,n.char,n.char)
end
-- pre post replace
function formatters.disc(n,comment)
return format("\\doFLOWdiscnode{%s}{%s}",comment,n.subtype)
end
-- subtype kern
function formatters.kern(n,comment)
-- return format("\\doFLOWkernnode{%s}{%s}{%s}",comment,kerncodes[n.subtype],points(n.kern))
return format("\\doFLOWkernnode{%s}{%s}{%.4f}",comment,kerncodes[n.subtype],n.kern*ptfactor)
end
-- subtype penalty
function formatters.penalty(n,comment)
return format("\\doFLOWpenaltynode{%s}{%s}{%s}",comment,"penalty",n.penalty)
end
-- subtype width leader spec (stretch shrink ...
function formatters.glue(n,comment)
local s = n.spec
-- return format("\\doFLOWgluenode{%s}{%s}{%s}{%s}{%s}",comment,gluecodes[n.subtype],points(s.width),points(s.stretch),points(s.shrink))
return format("\\doFLOWgluenode{%s}{%s}{%.4f}{%.4f}{%.4f}",comment,gluecodes[n.subtype],s.width*ptfactor,s.stretch*ptfactor,s.shrink*ptfactor)
end
-- subtype width leader spec (stretch shrink ...
function formatters.whatsit(n,comment)
local subtype = n.subtype
local whatsit = whatsitcodes[subtype]
if whatsit == "dir" or whatsit == "localpar" then
return format("\\doFLOWdirnode{%s}{%s}{%s}",comment,whatsit,n.dir)
else
return nodecodes[n.id]
end
end
function formatters.dir(n,comment)
return format("\\doFLOWdirnode{%s}{%s}{%s}",comment,"dir",n.dir)
end
function formatters.localpar(n,comment)
return format("\\doFLOWdirnode{%s}{%s}{%s}",comment,"localpar",n.dir)
end
-- I will make a dedicated set of shapes for this.
local shapes = {
glyph = "procedure",
disc = "procedure",
kern = "action",
penalty = "action",
glue = "action",
}
local function flow_nodes_to_chart(specification)
local head = specification.head
local box = specification.box
local comment = specification.comment or ""
local x = specification.x or 1
local y = specification.y or 0
--
if box then
box = tex.getbox(tonumber(box))
head = box and box.list
end
--
local current = head
--
while current do
local nodecode = nodecodes[current.id]
local formatter = formatters[nodecode]
local shape = shapes[nodecode]
y = y + 1
local next = current.next
commands.flow_start_cell { shape = { framecolor = "nodechart:" .. nodecode } }
commands.flow_set_name(tostring(current))
commands.flow_set_location(x,y)
if shape then
commands.flow_set_shape(shape)
end
if formatter then
commands.flow_set_text("node",formatter(current,comment))
else
commands.flow_set_text("node",nodecode)
end
if next then
commands.flow_set_connection("bt","",tostring(next))
end
if nodecode == "glyph" then
local components = current.components
if components then
commands.flow_set_connection("rl","",tostring(components))
commands.flow_stop_cell()
n = flow_nodes_to_chart { head = components, comment = "component",x = x+2, y = y-1 }
else
commands.flow_stop_cell()
end
elseif nodecode == "disc" then
local pre = current.pre
local pos = current.post
local rep = current.replace
if pre and not rep and not rep then
if pre then
commands.flow_set_connection("rl","",tostring(pre))
end
commands.flow_stop_cell()
if pre then
n = flow_nodes_to_chart { head = pre, comment = "prebreak", x = x+1, y = y-1 }
end
else
if pre then
commands.flow_set_connection("+rl","",tostring(pre))
end
if rep then
commands.flow_set_connection("rl","",tostring(rep))
end
if pos then
commands.flow_set_connection("-rl","",tostring(pos))
end
commands.flow_stop_cell()
if pre then
n = flow_nodes_to_chart{ head = pre, comment = "prebreak", x = x+1, y = y-2 }
end
if rep then
n = flow_nodes_to_chart{ head = rep, comment = "replacement", x = x+1, y = y-1 }
end
if pos then
n = flow_nodes_to_chart{ head = pos, comment = "postbreak", x = x+1, y = y }
end
end
elseif nodecode == "hlist" then
local list = current.list
if list then
commands.flow_set_connection("rl","",tostring(list))
commands.flow_stop_cell()
n = flow_nodes_to_chart { head = list, comment = "list", x = x+2, y = y-1 }
else
commands.flow_stop_cell()
end
else
commands.flow_stop_cell()
end
current = next
end
end
function moduledata.charts.nodes.chart(specification)
commands.flow_start_chart(specification.name)
flow_nodes_to_chart(specification)
commands.flow_stop_chart()
end
|
