summaryrefslogtreecommitdiff
path: root/tex/context/base/mkxl/node-res.lmt
blob: b1ab7e22b2d2c1d033ec9b5358e9a2588d03f62d (plain)
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
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
422
423
424
425
426
427
428
429
430
431
432
433
434
435
436
437
438
439
440
441
442
443
444
445
446
447
448
449
450
451
452
453
454
455
456
457
458
459
460
461
462
463
464
465
466
467
468
469
470
471
472
473
474
475
476
477
478
479
480
481
482
483
484
485
486
487
488
489
490
491
492
493
494
495
496
497
498
499
500
501
502
503
504
505
506
507
508
509
510
511
512
513
514
515
516
517
518
519
520
521
522
523
524
525
526
527
528
529
530
531
532
533
534
535
536
537
538
539
540
541
542
543
544
545
546
547
548
549
550
551
552
553
554
555
556
557
558
559
560
561
562
563
564
if not modules then modules = { } end modules ['node-res'] = {
    version   = 1.001,
    comment   = "companion to node-ini.mkiv",
    author    = "Hans Hagen, PRAGMA-ADE, Hasselt NL",
    copyright = "PRAGMA ADE / ConTeXt Development Team",
    license   = "see context related readme files"
}

local type, next, rawset = type, next, rawset
local gmatch, format = string.gmatch, string.format

--[[ldx--
<p>The next function is not that much needed but in <l n='context'/> we use
for debugging <l n='luatex'/> node management.</p>
--ldx]]--

local nodes, node = nodes, node

local report_nodes   = logs.reporter("nodes","housekeeping")

nodes.pool           = nodes.pool or { }
local nodepool       = nodes.pool

local gluecodes      = nodes.gluecodes
local kerncodes      = nodes.kerncodes
local rulecodes      = nodes.rulecodes
local nodecodes      = nodes.nodecodes
local boundarycodes  = nodes.boundarycodes
local usercodes      = nodes.usercodes

local nodeproperties = nodes.properties.data

local glyph_code     = nodecodes.glyph
local rule_code      = nodecodes.rule
local kern_code      = nodecodes.kern
local glue_code      = nodecodes.glue
local gluespec_code  = nodecodes.gluespec

local currentfont    = font.current
local texgetcount    = tex.getcount

local allocate       = utilities.storage.allocate

local reserved       = { }
local nofreserved    = 0

-- nuts overload

local nuts         = nodes.nuts
local nutpool      = { }
nuts.pool          = nutpool

local tonut        = nuts.tonut
local tonode       = nuts.tonode

local getbox       = nuts.getbox
local getid        = nuts.getid
local getlist      = nuts.getlist
local getglue      = nuts.getglue

local setfield     = nuts.setfield
local setchar      = nuts.setchar
local setlist      = nuts.setlist
local setwhd       = nuts.setwhd
local setglue      = nuts.setglue
local setdisc      = nuts.setdisc
local setfont      = nuts.setfont
local setkern      = nuts.setkern
local setpenalty   = nuts.setpenalty
local setdir       = nuts.setdir
local setdirection = nuts.setdirection
local setshift     = nuts.setshift
local setwidth     = nuts.setwidth
local setsubtype   = nuts.setsubtype
local setleader    = nuts.setleader

local setdata      = nuts.setdata
local setruledata  = nuts.setruledata
local setvalue     = nuts.setvalue

local copy_nut     = nuts.copyonly
local new_nut      = nuts.new
local flush_nut    = nuts.flush

-- at some point we could have a dual set (the overhead of tonut is not much larger than
-- metatable associations at the lua/c end esp if we also take assignments into account

-- table.setmetatableindex(nodepool,function(t,k,v)
--  -- report_nodes("defining nodepool[%s] instance",k)
--     local f = nutpool[k]
--     local v = function(...)
--         return tonode(f(...))
--     end
--     t[k] = v
--     return v
-- end)
--
-- -- we delay one step because that permits us a forward reference
-- -- e.g. in pdfsetmatrix

table.setmetatableindex(nodepool,function(t,k,v)
 -- report_nodes("defining nodepool[%s] instance",k)
    local v = function(...)
        local f = nutpool[k]
        local v = function(...)
            return tonode(f(...))
        end
        t[k] = v
        return v(...)
    end
    t[k] = v
    return v
end)

local function register_nut(n)
    nofreserved = nofreserved + 1
    reserved[nofreserved] = n
    return n
end

local function register_node(n)
    nofreserved = nofreserved + 1
    if type(n) == "number" then -- isnut(n)
        reserved[nofreserved] = n
    else
        reserved[nofreserved] = tonut(n)
    end
    return n
end

nodepool.register = register_node
nutpool.register  = register_node -- could be register_nut

-- so far

local disc              = register_nut(new_nut(nodecodes.disc))
local kern              = register_nut(new_nut(kern_code,kerncodes.userkern))
local fontkern          = register_nut(new_nut(kern_code,kerncodes.fontkern))
local italickern        = register_nut(new_nut(kern_code,kerncodes.italiccorrection))
local penalty           = register_nut(new_nut(nodecodes.penalty))
local glue              = register_nut(new_nut(glue_code))
local gluespec          = register_nut(new_nut(gluespec_code))
local glyph             = register_nut(new_nut(glyph_code,0))

local textdir           = register_nut(new_nut(nodecodes.dir))

local left_margin_kern  = register_nut(new_nut(kern_code,kerncodes.leftmargincode))
local right_margin_kern = register_nut(new_nut(kern_code,kerncodes.rightmargincode))

local lineskip          = register_nut(new_nut(glue_code,gluecodes.lineskip))
local baselineskip      = register_nut(new_nut(glue_code,gluecodes.baselineskip))
local leftskip          = register_nut(new_nut(glue_code,gluecodes.leftskip))
local rightskip         = register_nut(new_nut(glue_code,gluecodes.rightskip))
local lefthangskip      = register_nut(new_nut(glue_code,gluecodes.lefthangskip))
local righthangskip     = register_nut(new_nut(glue_code,gluecodes.righthangskip))
local indentskip        = register_nut(new_nut(glue_code,gluecodes.indentskip))
local correctionskip    = register_nut(new_nut(glue_code,gluecodes.correctionskip))

local temp              = register_nut(new_nut(nodecodes.temp,0))

local noad              = register_nut(new_nut(nodecodes.noad))
local delimiter         = register_nut(new_nut(nodecodes.delimiter))
local fence             = register_nut(new_nut(nodecodes.fence))
local submlist          = register_nut(new_nut(nodecodes.submlist))
local accent            = register_nut(new_nut(nodecodes.accent))
local radical           = register_nut(new_nut(nodecodes.radical))
local fraction          = register_nut(new_nut(nodecodes.fraction))
local subbox            = register_nut(new_nut(nodecodes.subbox))
local mathchar          = register_nut(new_nut(nodecodes.mathchar))
local mathtextchar      = register_nut(new_nut(nodecodes.mathtextchar))
local choice            = register_nut(new_nut(nodecodes.choice))

local boundary          = register_nut(new_nut(nodecodes.boundary,boundarycodes.user))
local wordboundary      = register_nut(new_nut(nodecodes.boundary,boundarycodes.word))

local cleader           = register_nut(copy_nut(glue)) setsubtype(cleader,gluecodes.cleaders) setglue(cleader,0,65536,0,2,0)

-- the dir field needs to be set otherwise crash:

local lefttoright_code  = nodes.dirvalues.lefttoright

local rule              = register_nut(new_nut(rule_code))                   -- setdirection(rule, lefttoright_code)
local emptyrule         = register_nut(new_nut(rule_code,rulecodes.empty))   -- setdirection(rule, lefttoright_code)
local userrule          = register_nut(new_nut(rule_code,rulecodes.user))    -- setdirection(rule, lefttoright_code)
local outlinerule       = register_nut(new_nut(rule_code,rulecodes.outline)) -- setdirection(rule, lefttoright_code)
local hlist             = register_nut(new_nut(nodecodes.hlist))             setdirection(hlist,lefttoright_code)
local vlist             = register_nut(new_nut(nodecodes.vlist))             setdirection(vlist,lefttoright_code)

function nutpool.glyph(fnt,chr)
    local n = copy_nut(glyph)
    if fnt then
        setfont(n,fnt == true and currentfont() or fnt,chr)
    elseif chr then
        setchar(n,chr)
    end
    return n
end

function nutpool.penalty(p)
    local n = copy_nut(penalty)
    if p and p ~= 0 then
        setpenalty(n,p)
    end
    return n
end

function nutpool.kern(k)
    local n = copy_nut(kern)
    if k and k ~= 0 then
        setkern(n,k)
    end
    return n
end

function nutpool.boundary(v)
    local n = copy_nut(boundary)
    if v and v ~= 0 then
        setvalue(n,v)
    end
    return n
end

function nutpool.wordboundary(v)
    local n = copy_nut(wordboundary)
    if v and v ~= 0 then
        setvalue(n,v)
    end
    return n
end

function nutpool.fontkern(k)
    local n = copy_nut(fontkern)
    if k and k ~= 0 then
        setkern(n,k)
    end
    return n
end

function nutpool.italickern(k)
    local n = copy_nut(italickern)
    if k and k ~= 0 then
        setkern(n,k)
    end
    return n
end

function nutpool.gluespec(width,stretch,shrink,stretch_order,shrink_order)
    local n = copy_nut(gluespec)
    if width or stretch or shrink or stretch_order or shrink_order then
        setglue(n,width,stretch,shrink,stretch_order,shrink_order)
    end
    return n
end

local function someskip(skip,width,stretch,shrink,stretch_order,shrink_order)
    -- maybe setglue
    local n = copy_nut(skip)
    if width or stretch or shrink or stretch_order or shrink_order then
        setglue(n,width,stretch,shrink,stretch_order,shrink_order)
    end
    return n
end

function nutpool.stretch(a,b)
    -- width stretch shrink stretch_order shrink_order
    local n = copy_nut(glue)
    if not b then
        a, b = 1, a or 1
    end
    setglue(n,0,a,0,b,0)
    return n
end

function nutpool.shrink(a,b)
    local n = copy_nut(glue)
    if not b then
        a, b = 1, a or 1
    end
    setglue(n,0,0,a,0,0,b)
    return n
end

function nutpool.glue(width,stretch,shrink,stretch_order,shrink_order)
    return someskip(glue,width,stretch,shrink,stretch_order,shrink_order)
end

function nutpool.negatedglue(glue)
    local n = copy_nut(glue)
    local width, stretch, shrink = getglue(n)
    setglue(n,-width,-stretch,-shrink)
    return n
end

function nutpool.leftskip(width,stretch,shrink,stretch_order,shrink_order)
    return someskip(leftskip,width,stretch,shrink,stretch_order,shrink_order)
end

function nutpool.rightskip(width,stretch,shrink,stretch_order,shrink_order)
    return someskip(rightskip,width,stretch,shrink,stretch_order,shrink_order)
end

function nutpool.lefthangskip(width,stretch,shrink,stretch_order,shrink_order)
    return someskip(lefthangskip,width,stretch,shrink,stretch_order,shrink_order)
end

function nutpool.righthangskip(width,stretch,shrink,stretch_order,shrink_order)
    return someskip(righthangskip,width,stretch,shrink,stretch_order,shrink_order)
end

function nutpool.indentskip(width,stretch,shrink,stretch_order,shrink_order)
    return someskip(indentskip,width,stretch,shrink,stretch_order,shrink_order)
end

function nutpool.lineskip(width,stretch,shrink,stretch_order,shrink_order)
    return someskip(lineskip,width,stretch,shrink,stretch_order,shrink_order)
end

function nutpool.baselineskip(width,stretch,shrink)
    return someskip(baselineskip,width,stretch,shrink)
end

function nutpool.disc(pre,post,replace)
    local d = copy_nut(disc)
    if pre or post or replace then
        setdisc(d,pre,post,replace)
    end
    return d
end

function nutpool.direction(dir,swap)
    local t = copy_nut(textdir)
    if not dir then
        -- just a l2r start node
    elseif swap then
        setdirection(t,dir,true)
    else
        setdirection(t,dir,false)
    end
    return t
end

function nutpool.rule(width,height,depth) -- w/h/d == nil will let them adapt
    local n = copy_nut(rule)
    if width or height or depth then
        setwhd(n,width,height,depth)
    end
    return n
end

function nutpool.emptyrule(width,height,depth) -- w/h/d == nil will let them adapt
    local n = copy_nut(emptyrule)
    if width or height or depth then
        setwhd(n,width,height,depth)
    end
    return n
end

function nutpool.userrule(width,height,depth) -- w/h/d == nil will let them adapt
    local n = copy_nut(userrule)
    if width or height or depth then
        setwhd(n,width,height,depth)
    end
    return n
end

function nutpool.outlinerule(width,height,depth,line) -- w/h/d == nil will let them adapt
    local n = copy_nut(outlinerule)
    if width or height or depth then
        setwhd(n,width,height,depth)
    end
    if line then
        setruledata(n,line)
    end
    return n
end

function nutpool.leader(width,list)
    local n = copy_nut(cleader)
    if width then
        setwidth(n,width)
    end
    if list then
        setleader(n,list)
    end
    return n
end

function nutpool.leftmarginkern(glyph,width)
    local n = copy_nut(left_margin_kern)
    if not glyph then
        report_nodes("invalid pointer to left margin glyph node")
    elseif getid(glyph) ~= glyph_code then
        report_nodes("invalid node type %a for %s margin glyph node",nodecodes[glyph],"left")
    else
        setfield(n,"glyph",glyph)
    end
    if width and width ~= 0 then
        setwidth(n,width)
    end
    return n
end

function nutpool.rightmarginkern(glyph,width)
    local n = copy_nut(right_margin_kern)
    if not glyph then
        report_nodes("invalid pointer to right margin glyph node")
    elseif getid(glyph) ~= glyph_code then
        report_nodes("invalid node type %a for %s margin glyph node",nodecodes[p],"right")
    else
        setfield(n,"glyph",glyph)
    end
    if width and width ~= 0 then
        setwidth(n,width)
    end
    return n
end

function nutpool.temp()
    return copy_nut(temp)
end

function nutpool.noad()         return copy_nut(noad)         end
function nutpool.delimiter()    return copy_nut(delimiter)    end  nutpool.delim = nutpool.delimiter
function nutpool.fence()        return copy_nut(fence)        end
function nutpool.submlist()     return copy_nut(submlist)     end
function nutpool.noad()         return copy_nut(noad)         end
function nutpool.fence()        return copy_nut(fence)        end
function nutpool.accent()       return copy_nut(accent)       end
function nutpool.radical()      return copy_nut(radical)      end
function nutpool.fraction()     return copy_nut(fraction)     end
function nutpool.subbox()       return copy_nut(subbox)       end
function nutpool.mathchar()     return copy_nut(mathchar)     end
function nutpool.mathtextchar() return copy_nut(mathtextchar) end
function nutpool.choice()       return copy_nut(choice)       end

local function new_hlist(list,width,height,depth,shift)
    local n = copy_nut(hlist)
    if list then
        setlist(n,list)
    end
    if width or height or depth then
        setwhd(n,width,height,depth)
    end
    if shift and shift ~= 0 then
        setshift(n,shift)
    end
    return n
end

local function new_vlist(list,width,height,depth,shift)
    local n = copy_nut(vlist)
    if list then
        setlist(n,list)
    end
    if width or height or depth then
        setwhd(n,width,height,depth)
    end
    if shift and shift ~= 0 then
        setshift(n,shift)
    end
    return n
end

nutpool.hlist = new_hlist
nutpool.vlist = new_vlist

function nodepool.hlist(list,width,height,depth,shift)
    return tonode(new_hlist(list and tonut(list),width,height,depth,shift))
end

function nodepool.vlist(list,width,height,depth,shift)
    return tonode(new_vlist(list and tonut(list),width,height,depth,shift))
end

function nutpool.usernode(id,data)
    local n = copy_nut(user_node)
    nodeproperties[n] = {
        id   = id,
        data = data,
    }
    return n
end

-- housekeeping

local function cleanup(nofboxes) -- todo
    -- this is bonus, not really needed
    local tracers = nodes.tracers
    if tracers and tracers.steppers then -- to be resolved
        tracers.steppers.reset() -- todo: make a registration subsystem
    end
    local nl = 0
    local nr = nofreserved
    for i=1,nofreserved do
        local ri = reserved[i]
        flush_nut(reserved[i])
    end
    if nofboxes then
        for i=0,nofboxes do
            local l = getbox(i)
            if l then
                flush_nut(l) -- also list ?
                nl = nl + 1
            end
        end
    end
    reserved    = { }
    nofreserved = 0
    return nr, nl, nofboxes -- can be nil
end

local usage = node.inuse
local stock = node.instock

nutpool .cleanup = cleanup
nodepool.cleanup = cleanup

nutpool .usage   = usage
nodepool.usage   = usage

nutpool .stock   = stock
nodepool.stock   = stock

-- end

statistics.register("cleaned up reserved nodes", function()
    return format("%s nodes, %s lists of %s", cleanup(texgetcount("c_syst_last_allocated_box")))
end) -- \topofboxstack

statistics.register("node memory usage", function() -- comes after cleanup !
    local used = usage()
    if next(used) then
        local t, n = { }, 0
        for k, v in table.sortedhash(used) do
            n = n + 1 ; t[n] = format("%s %s",v,k)
        end
        return table.concat(t,", ")
    end
end)

lua.registerinitexfinalizer(cleanup, "cleanup reserved nodes")

do

    local glyph      = glyph
    local traverseid = nuts.traverseid

    local traversers = table.setmetatableindex(function(t,k)
        local v = traverseid(type(k) == "number" and k or nodecodes[k],glyph)
        t[k] = v
        return v
    end)

    -- these are special:

    traversers.node    = nuts.traverse       (glyph)
    traversers.char    = nuts.traversechar   (glyph)
    traversers.glyph   = nuts.traverseglyph  (glyph)
    traversers.list    = nuts.traverselist   (glyph)
    traversers.content = nuts.traversecontent(glyph)

    nuts.traversers = traversers

end