aboutsummaryrefslogtreecommitdiffstats
path: root/z18.c
blob: 17036183ac8c0c6ca22c5e9341700767bacb8089 (plain) (blame)
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
/*@z18.c:Galley Transfer:Declarations@****************************************/
/*                                                                           */
/*  THE LOUT DOCUMENT FORMATTING SYSTEM (VERSION 3.41)                       */
/*  COPYRIGHT (C) 1991, 2023 Jeffrey H. Kingston                             */
/*                                                                           */
/*  Jeffrey H. Kingston (jeff@it.usyd.edu.au)                                */
/*  School of Information Technologies                                       */
/*  The University of Sydney 2006                                            */
/*  AUSTRALIA                                                                */
/*                                                                           */
/*  This program is free software; you can redistribute it and/or modify     */
/*  it under the terms of the GNU General Public License as published by     */
/*  the Free Software Foundation; either Version 3, or (at your option)      */
/*  any later version.                                                       */
/*                                                                           */
/*  This program is distributed in the hope that it will be useful,          */
/*  but WITHOUT ANY WARRANTY; without even the implied warranty of           */
/*  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the            */
/*  GNU General Public License for more details.                             */
/*                                                                           */
/*  You should have received a copy of the GNU General Public License        */
/*  along with this program; if not, write to the Free Software              */
/*  Foundation, Inc., 59 Temple Place, Suite 330, Boston MA 02111-1307 USA   */
/*                                                                           */
/*  FILE:         z18.c                                                      */
/*  MODULE:       Galley Transfer                                            */
/*  EXTERNS:      TransferInit(), TransferBegin(), TransferComponent(),      */
/*                TransferEnd(), TransferClose()                             */
/*                                                                           */
/*****************************************************************************/
#include "externs.h"
#include "child.h"
#include "parent.h"

#define	MAX_DEPTH  	30			/* max depth of galleys      */
static OBJECT		root_galley;		/* the root galley           */
static OBJECT		targets[MAX_DEPTH];	/* currently open \Inputs    */
static CONSTRAINT	constraints[MAX_DEPTH];	/* their COLM constraints    */
static int		itop;			/* stack top	             */
static CONSTRAINT	initial_constraint;	/* initial COLM constraint   */
       CONTEXT		InitialContext =	/* initial context	     */
	 { nilobj, nilobj, nilobj, NULL };
       STYLE		InitialStyle;		/* initial style             */
       OBJECT		InitialEnvironment;	/* initial environment	     */

#if DEBUG_ON
static void debug_targets(void)
{ int i;  OBJECT tmp;
  for( i = 0;  i <= itop;  i++ )
  { if( targets[i] == nilobj || Down(targets[i]) == targets[i] )  tmp = nilobj;
    else Child(tmp, Down(targets[i]));
    debug3(DGT, D, "  target[%d] %s = %s", i,
      EchoConstraint(&constraints[i]), EchoObject(tmp));
  }
} /* end debug_targets */
#endif


/*@::TransferInit()@**********************************************************/
/*                                                                           */
/*  TransferInit(InitEnv)                                                    */
/*                                                                           */
/*  Initialise this module.  The initial environment is InitEnv.             */
/*                                                                           */
/*****************************************************************************/

void TransferInit(OBJECT InitEnv)
{ OBJECT dest, x, y, recs, inners, nothing, dest_index, up_hd, why;
  debug1(DGT, D, "[ TransferInit( %s )", EchoObject(InitEnv));
  SetConstraint(initial_constraint,
    MAX_FULL_LENGTH-1, MAX_FULL_LENGTH-1, MAX_FULL_LENGTH-1);

  /* set initial environment and style */
  InitialEnvironment = InitEnv;
  SetGap(line_gap(InitialStyle), FALSE,FALSE,FALSE,FIXED_UNIT,MARK_MODE,18*PT);
  vadjust(InitialStyle)         = FALSE;
  hadjust(InitialStyle)         = FALSE;
  padjust(InitialStyle)         = FALSE;
  space_style(InitialStyle)     = SPACE_LOUT;
  SetGap(space_gap(InitialStyle), FALSE,FALSE,TRUE,FIXED_UNIT,EDGE_MODE,1*EM);
  hyph_style(InitialStyle)      = HYPH_UNDEF;
  fill_style(InitialStyle)      = FILL_UNDEF;
  display_style(InitialStyle)   = DISPLAY_UNDEF;
  small_caps(InitialStyle)      = SMALL_CAPS_OFF;
  font(InitialStyle)            = 0;			/* i.e. undefined    */
  colour(InitialStyle)          = 0;			/* i.e. undefined    */
  underline_colour(InitialStyle)= 0;			/* i.e. undefined    */
  texture(InitialStyle)         = 1;			/* i.e. "null"       */
  blanklinescale(InitialStyle)  = SF;			/* i.e. 1.0 (scaled) */
  outline(InitialStyle)         = FALSE;		/* i.e. not outlined */
  language(InitialStyle)        = 0;			/* i.e. undefined    */
  yunit(InitialStyle)           = 0;			/* i.e. zero         */
  zunit(InitialStyle)           = 0;			/* i.e. zero         */
  outdent_len(InitialStyle)     = 0;			/* i.e. zero         */
  smallcaps_len(InitialStyle)   = 0.7 * FR;		/* i.e. 0.7 scale    */
  nobreakfirst(InitialStyle)	= FALSE;
  nobreaklast(InitialStyle)	= FALSE;
  marginkerning(InitialStyle)	= FALSE;
  baselinemark(InitialStyle)	= FALSE;                /* i.e. not baseline */
  strut(InitialStyle)		= FALSE;                /* i.e. not strutted */
  ligatures(InitialStyle)	= TRUE;                 /* i.e. ligatures    */
  context(InitialStyle) 	= InitialContext;

  /* construct destination for root galley */
  New(up_hd, HEAD);
  FposCopy(fpos(up_hd), *no_fpos);
  force_gall(up_hd) = FALSE;
  actual(up_hd) = enclose_obj(up_hd) = limiter(up_hd) = nilobj;
  ClearHeaders(up_hd);
  opt_components(up_hd) = opt_constraints(up_hd) = nilobj;
  gall_dir(up_hd) = ROWM;
  ready_galls(up_hd) = nilobj;
  seen_nojoin(up_hd) = must_expand(up_hd) = sized(up_hd) = FALSE;
  foll_or_prec(up_hd) = GALL_FOLL;
  whereto(up_hd) = nilobj;
  New(dest_index, RECEIVING);
  New(dest, CLOSURE);  actual(dest) = PrintSym;
  actual(dest_index) = dest;
  debug2(DGT, D, "TransferInit setting external_ver(%s %s) = TRUE",
    Image(type(dest)), SymName(actual(dest)));
  external_ver(dest) = TRUE;
  external_hor(dest) = FALSE;
  threaded(dest) = FALSE;
  blocked(dest_index) = FALSE;
  Link(up_hd, dest_index);

  /* construct root galley */
  New(root_galley, HEAD);
  FposCopy(fpos(root_galley), *no_fpos);
  force_gall(root_galley) = FALSE;
  actual(root_galley) = nilobj;
  enclose_obj(root_galley) = limiter(root_galley) = nilobj;
  ClearHeaders(root_galley);
  opt_components(root_galley) = opt_constraints(root_galley) = nilobj;
  gall_dir(root_galley) = ROWM;
  ready_galls(root_galley) = nilobj;
  must_expand(root_galley) = sized(root_galley) =FALSE;
  foll_or_prec(root_galley) = GALL_FOLL;
  whereto(root_galley) = nilobj;
  seen_nojoin(root_galley) = FALSE;
  New(x, CLOSURE);  actual(x) = InputSym;
  Link(root_galley, x);
  SizeGalley(root_galley, InitEnv, TRUE, FALSE, FALSE, FALSE, &InitialStyle,
    &initial_constraint, nilobj, &nothing, &recs, &inners, nilobj);
  debug1(DGA, D, "  TransferInit inners: %s", DebugInnersNames(inners));
  assert( recs   == nilobj , "TransferInit: recs   != nilobj!" );
  assert( inners == nilobj , "TransferInit: inners != nilobj!" );
  Link(dest_index, root_galley);

  /* initialise target and constraint stacks */
  Child(y, Down(root_galley));
  assert( type(y) == RECEPTIVE && type(actual(y)) == CLOSURE &&
	actual(actual(y)) == InputSym, "TransferInit: initial galley!" );
  assert( external_ver(actual(y)), "TransferInit: input sym not external!" );
  blocked(y) = TRUE;
  itop = 0;
  New(targets[itop], ACAT);
  Link(targets[itop], y);
  Constrained(actual(y), &constraints[itop], COLM, &why);
  debug2(DSC, DD, "Constrained( %s, COLM ) = %s",
	EchoObject(y), EchoConstraint(&constraints[itop]));

  debug0(DGT, D, "] TransferInit returning.");
  ifdebug(DGT, DD, debug_targets());
} /* end TransferInit */


/*@::TransferBegin()@*********************************************************/
/*                                                                           */
/*  OBJECT TransferBegin(x)                                                  */
/*                                                                           */
/*  Commence the transfer of a new galley whose header is invocation x.      */
/*                                                                           */
/*****************************************************************************/

OBJECT TransferBegin(OBJECT x)
{ OBJECT xsym, index, y, link, env, new_env, hold_env, res = nilobj;
  OBJECT hd, target, why;
  CONSTRAINT c;
  debug1(DGT, D, "[ [ TransferBegin( %s )", EchoObject(x));
  ifdebug(DGT, DD, debug_targets());
  assert( type(x) == CLOSURE, "TransferBegin: non-CLOSURE!" );

  /* add an automatically generated @Tag parameter to x if required */
  if( has_tag(actual(x)) )  CrossAddTag(x);

  /* construct new (inner) env chain */
  if( Down(targets[itop]) == targets[itop] )
    Error(18, 1, "cannot attach galley %s", FATAL,&fpos(x),SymName(actual(x)));
  Child(target, Down(targets[itop]));
  xsym = actual(x);
  env = GetEnv(actual(target));
  debug1(DGT, DD, "  current env chain: %s", EchoObject(env));
  if( has_body(xsym) )
  {
    /* prepare a copy of x for inclusion in environment */
    y = CopyObject(x, no_fpos);

    /* attach its environment */
    AttachEnv(env, y);

    /* now the new environment is y catenated with the old one */
    debug0(DCR, DD, "calling SetEnv from TransferBegin (a)");
    new_env = SetEnv(y, nilobj);
  }
  else new_env = env;
  New(hold_env, ACAT);  Link(hold_env, new_env);
  debug1(DGT, DD, "  new env chain: %s", EchoObject(new_env));

  /* convert x into an unsized galley called hd */
  New(index, UNATTACHED);
  actual(index) = nilobj;
  non_blocking(index) = TRUE;
  blocked(index) = FALSE;
  pinpoint(index) = nilobj;
  New(hd, HEAD);
  FposCopy(fpos(hd), fpos(x));
  actual(hd) = xsym;
  limiter(hd) = opt_components(hd) = opt_constraints(hd) = nilobj;
  gall_dir(hd) = ROWM;
  ready_galls(hd) = nilobj;
  must_expand(hd) = TRUE;
  sized(hd) = FALSE;
  seen_nojoin(hd) = FALSE;
  Link(index, hd);
  Link(hd, x);
  AttachEnv(env, x);
  SetTarget(hd);
  enclose_obj(hd) = (has_enclose(actual(hd)) ? BuildEnclose(hd) : nilobj);
  ClearHeaders(hd);

  /* search for destination for hd and release it */
  Link(Up(target), index);
  debug0(DGF,D, "");
  debug1(DGF,D, "  calling FlushGalley(%s) from TransferBegin, root_galley =",
    SymName(actual(hd)));
  ifdebug(DGF, D, DebugGalley(root_galley, nilobj, 4));
  if( whereto(hd) == nilobj || !uses_extern_target(whereto(hd)) ) /* &&& */
    FlushGalley(hd);

  /* if failed to flush, undo everything and exit */
  Parent(index, Up(hd));
  if( type(index) == UNATTACHED && !sized(hd) )
  { DeleteNode(index);
    DisposeObject(hold_env);
    if( LastDown(x) != x )
    { Child(env, LastDown(x));
      if( type(env) == ENV )  DisposeChild(LastDown(x));
    }
    debug1(DGT,D, "] TransferBegin returning failed, x: %s", EchoObject(x));
    return x;
  }

  if( has_rpar(actual(hd)) )
  {
    /* set up new target to be inner \InputSym, or nilobj if none */
    if( ++itop >= MAX_DEPTH )
      Error(18, 2, "galley nested too deeply (max is %d)",
	FATAL, &fpos(x), MAX_DEPTH);
    New(targets[itop], ACAT);  target = nilobj;
    for( link = Down(hd);  link != hd;  link = NextDown(link) )
    { Child(y, link);
      if( type(y) == RECEPTIVE && actual(actual(y)) == InputSym )
      {
	Constrained(actual(y), &constraints[itop], COLM, &why);
	if( FitsConstraint(0, 0, constraints[itop]) )
	{ Link(targets[itop], y);  target = y;
	  debug2(DSC, DD, "Constrained( %s, COLM ) = %s",
	    EchoObject(y), EchoConstraint(&constraints[itop]));
	  env = DetachEnv(actual(y));
	  AttachEnv(new_env, actual(y));
	}
	else
	{ Error(18, 3, "galley %s deleted (insufficient width at target)",
	    WARN, &fpos(hd), SymName(actual(hd)));
	}
	break;
      }
    }

    /* return a token appropriate to the new target */
    if( target == nilobj || external_ver(actual(target)) )
      res = NewToken(GSTUB_EXT, no_fpos, 0, 0, precedence(xsym), nilobj);
    else
    { Constrained(actual(target), &c, ROWM, &why);
      if( constrained(c) )
	Error(18, 4, "right parameter of %s is vertically constrained",
	  FATAL, &fpos(target), SymName(xsym));
      else res = NewToken(GSTUB_INT, no_fpos, 0, 0, precedence(xsym), nilobj);
    }
    debug1(DGT, D, "] TransferBegin returning %s", Image(type(res)));
  }
  else
  {
    res = NewToken(GSTUB_NONE, no_fpos, 0, 0, precedence(xsym), nilobj);
    debug1(DGT, D, "] TransferBegin returning %s", Image(type(res)));
  }

  DisposeObject(hold_env);
  ifdebug(DGT, DD, debug_targets());
  return res;
} /* end TransferBegin */

/*@::TransferComponent()@*****************************************************/
/*                                                                           */
/*  TransferComponent(x)                                                     */
/*                                                                           */
/*  Transfer component x of a galley.                                        */
/*                                                                           */
/*****************************************************************************/

void TransferComponent(OBJECT x)
{ OBJECT y, env, start_search, recs, inners, nothing, hd, dest, dest_index;
  debug1(DGT, D, "[ TransferComponent( %s )", EchoObject(x));
  ifdebug(DGT, DD, debug_targets());

  /* if no dest_index, discard x and exit */
  if( Down(targets[itop]) == targets[itop] )
  { DisposeObject(x);
    debug0(DGT, D, "] TransferComponent returning (no target).");
    return;
  }
  Child(dest_index, Down(targets[itop]));
  assert( external_ver(actual(dest_index)), "TransferComponent: internal!" );

  /* make the component into a galley */
  New(hd, HEAD);
  FposCopy(fpos(hd), fpos(x));
  force_gall(hd) = FALSE;
  ClearHeaders(hd);
  enclose_obj(hd) = limiter(hd) = nilobj;
  opt_components(hd) = opt_constraints(hd) = nilobj;
  gall_dir(hd) = ROWM;
  actual(hd) = whereto(hd) = ready_galls(hd) = nilobj;
  must_expand(hd) = sized(hd) = FALSE;
  seen_nojoin(hd) = FALSE;
  foll_or_prec(hd) = GALL_FOLL;
  Link(hd, x);
  dest = actual(dest_index);
  env = GetEnv(dest);
  debug1(DGT, DD, "  current env chain: %s", EchoObject(env));
  SizeGalley(hd, env, TRUE, threaded(dest), FALSE, TRUE, &save_style(dest),
	&constraints[itop], nilobj, &nothing, &recs, &inners, nilobj);
  debug1(DGA, D, "  TransferComponent inners: %s", DebugInnersNames(inners));
  if( recs != nilobj )  ExpandRecursives(recs);
  debug3(DSA, D, "after SizeGalley, hd width is (%s,%s), constraint was %s",
    EchoLength(back(hd, COLM)), EchoLength(fwd(hd, COLM)),
    EchoConstraint(&constraints[itop]));

  /* promote the components, remembering where old spot was */
  start_search = PrevDown(Up(dest_index));
  debug1(DSA, D, "  calling AdjustSize from TransferComponent %s",
    EchoFilePos(&fpos(hd)));
  ifdebug(DSA, D,
    Child(y, Down(hd));
    while( type(y) == VCAT )  Child(y, Down(y));
    debug2(DSA, D, "  first component is %s at %s",
      Image(type(y)), EchoFilePos(&fpos(y)));
    if( NextDown(Down(hd)) != hd && NextDown(NextDown(Down(hd))) != hd )
    { Child(y, NextDown(NextDown(Down(hd))));
      debug2(DSA, D, "  second component is %s at %s",
        Image(type(y)), EchoFilePos(&fpos(y)));
    }
  );
  AdjustSize(dest, back(hd, COLM), fwd(hd, COLM), COLM);
  debug0(DGS, D, "calling Promote(hd, hd) from TransferComponent");
  Promote(hd, hd, dest_index, FALSE);
  DeleteNode(hd);

  /* flush any widowed galleys attached to \Input */
  if( Down(dest_index) != dest_index )
  { OBJECT tinners, index;
    New(tinners, ACAT);
    while( Down(dest_index) != dest_index )
    { Child(y, Down(dest_index));
      assert( type(y) == HEAD, "TransferComponent: input child!" );
      if( opt_components(y) != nilobj )
      { DisposeObject(opt_components(y));
	opt_components(y) = nilobj;
	debug1(DOG, D, "TransferComponent de-optimizing %s (@Input case)",
	  SymName(actual(y)));
      }
      DetachGalley(y);
      Parent(index, Up(y));
      MoveLink(Up(index), NextDown(start_search), PARENT);
      Link(tinners, index);
    }
    debug0(DGF, D, "  calling FlushInners() from TransferComponent (a)");
    FlushInners(tinners, nilobj);
  }

  /* flush any galleys inside hd */
  if( inners != nilobj )
  {
    debug0(DGF, D, "  calling FlushInners() from TransferComponent (b)");
    FlushInners(inners, nilobj);
  }

  /* flush parent galley, if needed */
  if( blocked(dest_index) )
  { blocked(dest_index) = FALSE;
    Parent(y, Up(dest_index));
    debug0(DGF, D, "  calling FlushGalley from TransferComponent");
    FlushGalley(y);
  }
  
  debug0(DGT, D, "] TransferComponent returning.");
  ifdebug(DGT, DD, debug_targets());
} /* end TransferComponent */


/*@::TransferEnd()@***********************************************************/
/*                                                                           */
/*  TransferEnd(x)                                                           */
/*                                                                           */
/*  End the transfer of a galley.                                            */
/*                                                                           */
/*****************************************************************************/

void TransferEnd(OBJECT x)
{ OBJECT recs, inners, nothing, z, env, dest, hd, dest_index, y, start_search;
  debug1(DGT, D, "[ TransferEnd( %s )", EchoObject(x));
  ifdebug(DGT, DD, debug_targets());

  /* if no dest_index, discard x and exit */
  if( Down(targets[itop]) == targets[itop] )
  { DisposeObject(x);  DisposeObject(targets[itop--]);
    debug0(DGT, D, "] TransferEnd returning: no dest_index");
    return;
  }
  Child(dest_index, Down(targets[itop]));

  /* make the component into a galley */
  New(hd, HEAD);  FposCopy(fpos(hd), fpos(x));
  force_gall(hd) = FALSE;
  ClearHeaders(hd);
  enclose_obj(hd) = limiter(hd) = nilobj;
  opt_components(hd) = opt_constraints(hd) = nilobj;
  gall_dir(hd) = ROWM;
  actual(hd) = whereto(hd) = ready_galls(hd) = nilobj;
  foll_or_prec(hd) = GALL_FOLL;
  seen_nojoin(hd) = must_expand(hd) = sized(hd) = FALSE;
  Link(hd, x);  dest = actual(dest_index);  env = GetEnv(dest);
  debug1(DGT, DD, "  current env chain: %s", EchoObject(env));
  SizeGalley(hd, env, external_ver(dest), threaded(dest), FALSE, TRUE,
    &save_style(dest), &constraints[itop], nilobj, &nothing, &recs, &inners,
    nilobj);
  debug1(DGA, D, "  TransferEnd inners: %s", DebugInnersNames(inners));
  if( recs != nilobj )  ExpandRecursives(recs);
  debug3(DSA, D, "after SizeGalley, hd width is (%s,%s), constraint was %s",
    EchoLength(back(hd, COLM)), EchoLength(fwd(hd, COLM)),
    EchoConstraint(&constraints[itop]));

  /* promote the components, remembering where old spot was */
  start_search = PrevDown(Up(dest_index));
  debug0(DSA, D, "calling AdjustSize from TransferEnd (a)");
  AdjustSize(dest, back(hd, COLM), fwd(hd, COLM), COLM);
  if( !external_ver(dest) )
  { Child(z, LastDown(hd));
    debug0(DSA, D, "calling AdjustSize from TransferEnd (b)");
    AdjustSize(dest, back(z, ROWM), fwd(z, ROWM), ROWM);
    Interpose(dest, VCAT, hd, z);
  }
  debug0(DGS, D, "calling Promote(hd, hd) from TransferEnd");
  Promote(hd, hd, dest_index, TRUE);  DeleteNode(hd);

  /* flush any widowed galleys attached to \Input */
  if( Down(dest_index) != dest_index )
  { OBJECT tinners, index;
    New(tinners, ACAT);
    while( Down(dest_index) != dest_index )
    { Child(y, Down(dest_index));
      assert( type(y) == HEAD, "TransferEnd: input child!" );
      if( opt_components(y) != nilobj )
      { DisposeObject(opt_components(y));
	opt_components(y) = nilobj;
	debug1(DOG, D, "TransferEnd de-optimizing %s (@Input case)",
	  SymName(actual(y)));
      }
      DetachGalley(y);
      Parent(index, Up(y));
      MoveLink(Up(index), NextDown(start_search), PARENT);
      Link(tinners, index);
    }
    debug0(DGF, D, "  calling FlushInners() from TransferEnd (a)");
    FlushInners(tinners, nilobj);
  }

  /* flush any galleys inside hd */
  if( inners != nilobj )
  {
    debug0(DGF, D, "  calling FlushInners() from TransferEnd (b)");
    FlushInners(inners, nilobj);
  }

  /* close dest_index, and flush parent galley if needed */
  if( blocked(dest_index) )
  { Parent(y, Up(dest_index));
    DeleteNode(dest_index);
    debug0(DGF, D, "  calling FlushGalley from TransferEnd");
    FlushGalley(y);
  }
  else DeleteNode(dest_index);
  
  /* pop target stack and exit */
  DisposeObject(targets[itop--]);
  debug0(DGT, D, "] ] TransferEnd returning.");
  ifdebug(DGT, DD, debug_targets());
} /* end TransferEnd */

/*@::TransferClose()@*********************************************************/
/*                                                                           */
/*  TransferClose()                                                          */
/*                                                                           */
/*  Close this module.                                                       */
/*                                                                           */
/*****************************************************************************/

void TransferClose(void)
{ OBJECT inners;
  debug0(DGT, D, "[ TransferClose()");
  ifdebug(DGT, DD, debug_targets());
  debug0(DGA, D, "  calling FreeGalley from TransferClose");
  if( LastDown(root_galley) != root_galley )
  { inners = nilobj;
    FreeGalley(root_galley, root_galley, &inners, nilobj, nilobj);
    if( inners != nilobj )
    {
      debug0(DGF, D, "  calling FlushInners() from TransferClose");
      FlushInners(inners, nilobj);
    }
    debug0(DGF, D, "  calling FlushGalley from TransferClose");
    FlushGalley(root_galley);
  }
  debug0(DGT, D, "] TransferClose returning.");
}