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
|
if not modules then modules = { } end modules ['syst-lua'] = {
version = 1.001,
comment = "companion to syst-lua.mkiv",
author = "Hans Hagen, PRAGMA-ADE, Hasselt NL",
copyright = "PRAGMA ADE / ConTeXt Development Team",
license = "see context related readme files"
}
local find, match = string.find, string.match
local tonumber = tonumber
local S, C, P, lpegmatch, lpegtsplitat = lpeg.S, lpeg.C, lpeg.P, lpeg.match, lpeg.tsplitat
commands = commands or { }
local commands = commands
local implement = interfaces.implement
local two_strings = interfaces.strings[2]
local context = context
local csprint = context.sprint
local prtcatcodes = tex.prtcatcodes
implement { -- will b eoverloaded later
name = "writestatus",
arguments = two_strings,
actions = logs.status,
}
local ctx_firstoftwoarguments = context.firstoftwoarguments -- context.constructcsonly("firstoftwoarguments" )
local ctx_secondoftwoarguments = context.secondoftwoarguments -- context.constructcsonly("secondoftwoarguments")
local ctx_firstofoneargument = context.firstofoneargument -- context.constructcsonly("firstofoneargument" )
local ctx_gobbleoneargument = context.gobbleoneargument -- context.constructcsonly("gobbleoneargument" )
-- contextsprint(prtcatcodes,[[\ui_fo]]) -- ctx_firstofonearguments
-- contextsprint(prtcatcodes,[[\ui_go]]) -- ctx_gobbleonearguments
-- contextsprint(prtcatcodes,[[\ui_ft]]) -- ctx_firstoftwoarguments
-- contextsprint(prtcatcodes,[[\ui_st]]) -- ctx_secondoftwoarguments
function commands.doifelse(b)
if b then
ctx_firstoftwoarguments()
-- csprint(prtcatcodes,[[\ui_ft]]) -- ctx_firstoftwoarguments
else
ctx_secondoftwoarguments()
-- csprint(prtcatcodes,[[\ui_st]]) -- ctx_secondoftwoarguments
end
end
function commands.doifelsesomething(b)
if b and b ~= "" then
ctx_firstoftwoarguments()
-- csprint(prtcatcodes,[[\ui_ft]]) -- ctx_firstoftwoarguments
else
ctx_secondoftwoarguments()
-- csprint(prtcatcodes,[[\ui_st]]) -- ctx_secondoftwoarguments
end
end
function commands.doif(b)
if b then
ctx_firstofoneargument()
-- context.__flushdirect(prtcatcodes,[[\ui_fo]]) -- ctx_firstofonearguments
else
ctx_gobbleoneargument()
-- context.__flushdirect(prtcatcodes,[[\ui_go]]) -- ctx_gobbleonearguments
end
end
function commands.doifsomething(b)
if b and b ~= "" then
ctx_firstofoneargument()
-- context.__flushdirect(prtcatcodes,[[\ui_fo]]) -- ctx_firstofonearguments
else
ctx_gobbleoneargument()
-- context.__flushdirect(prtcatcodes,[[\ui_go]]) -- ctx_gobbleonearguments
end
end
function commands.doifnot(b)
if b then
ctx_gobbleoneargument()
-- csprint(prtcatcodes,[[\ui_go]]) -- ctx_gobbleonearguments
else
ctx_firstofoneargument()
-- csprint(prtcatcodes,[[\ui_fo]]) -- ctx_firstofonearguments
end
end
function commands.doifnotthing(b)
if b and b ~= "" then
ctx_gobbleoneargument()
-- csprint(prtcatcodes,[[\ui_go]]) -- ctx_gobbleonearguments
else
ctx_firstofoneargument()
-- csprint(prtcatcodes,[[\ui_fo]]) -- ctx_firstofonearguments
end
end
commands.testcase = commands.doifelse -- obsolete
function commands.boolcase(b)
context(b and 1 or 0)
end
function commands.doifelsespaces(str)
if find(str,"^ +$") then
ctx_firstoftwoarguments()
else
ctx_secondoftwoarguments()
end
end
local s = lpegtsplitat(",")
local h = { }
local function doifelsecommon(a,b) -- often the same test
local ha = h[a]
local hb = h[b]
if not ha then
ha = lpegmatch(s,a)
h[a] = ha
end
if not hb then
hb = lpegmatch(s,b)
h[b] = hb
end
local na = #ha
local nb = #hb
for i=1,na do
for j=1,nb do
if ha[i] == hb[j] then
ctx_firstoftwoarguments()
return
end
end
end
ctx_secondoftwoarguments()
end
local function doifelseinset(a,b)
local hb = h[b]
if not hb then hb = lpegmatch(s,b) h[b] = hb end
for i=1,#hb do
if a == hb[i] then
ctx_firstoftwoarguments()
return
end
end
ctx_secondoftwoarguments()
end
implement {
name = "doifelsecommon",
arguments = two_strings,
actions = doifelsecommon
}
implement {
name = "doifelseinset",
arguments = two_strings,
actions = doifelseinset
}
local pattern = lpeg.patterns.validdimen
function commands.doifelsedimenstring(str)
if lpegmatch(pattern,str) then
ctx_firstoftwoarguments()
else
ctx_secondoftwoarguments()
end
end
local p_first = C((1-P(",")-P(-1))^0)
implement {
name = "firstinset",
arguments = "string",
actions = function(str) context(lpegmatch(p_first,str or "")) end
}
implement {
name = "ntimes",
arguments = { "string", "integer" },
actions = { string.rep, context }
}
implement {
name = "execute",
arguments = "string",
actions = os.execute -- wrapped in sandbox
}
-- function commands.write(n,str)
-- if n == 18 then
-- os.execute(str)
-- elseif n == 16 then
-- -- immediate
-- logs.report(str)
-- else
-- -- at the tex end we can still drop the write / also delayed vs immediate
-- context.writeviatex(n,str)
-- end
-- end
implement {
name = "doifelsesame",
arguments = two_strings,
actions = function(a,b)
if a == b then
ctx_firstoftwoarguments()
else
ctx_secondoftwoarguments()
end
end
}
implement {
name = "doifsame",
arguments = two_strings,
actions = function(a,b)
if a == b then
ctx_firstofoneargument()
else
ctx_gobbleoneargument()
end
end
}
implement {
name = "doifnotsame",
arguments = two_strings,
actions = function(a,b)
if a == b then
ctx_gobbleoneargument()
else
ctx_firstofoneargument()
end
end
}
|
