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[/] [openrisc/] [trunk/] [gnu-src/] [gdb-7.1/] [gdb/] [ui-out.c] - Blame information for rev 227

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1 227 jeremybenn
/* Output generating routines for GDB.
2
 
3
   Copyright (C) 1999, 2000, 2001, 2002, 2004, 2005, 2007, 2008, 2009, 2010
4
   Free Software Foundation, Inc.
5
 
6
   Contributed by Cygnus Solutions.
7
   Written by Fernando Nasser for Cygnus.
8
 
9
   This file is part of GDB.
10
 
11
   This program is free software; you can redistribute it and/or modify
12
   it under the terms of the GNU General Public License as published by
13
   the Free Software Foundation; either version 3 of the License, or
14
   (at your option) any later version.
15
 
16
   This program is distributed in the hope that it will be useful,
17
   but WITHOUT ANY WARRANTY; without even the implied warranty of
18
   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
19
   GNU General Public License for more details.
20
 
21
   You should have received a copy of the GNU General Public License
22
   along with this program.  If not, see <http://www.gnu.org/licenses/>.  */
23
 
24
#include "defs.h"
25
#include "gdb_string.h"
26
#include "expression.h"         /* For language.h */
27
#include "language.h"
28
#include "ui-out.h"
29
#include "gdb_assert.h"
30
 
31
/* table header structures */
32
 
33
struct ui_out_hdr
34
  {
35
    int colno;
36
    int width;
37
    int alignment;
38
    char *col_name;
39
    char *colhdr;
40
    struct ui_out_hdr *next;
41
  };
42
 
43
/* Maintain a stack so that the info applicable to the inner most list
44
   is always available.  Stack/nested level 0 is reserved for the
45
   top-level result. */
46
 
47
enum { MAX_UI_OUT_LEVELS = 8 };
48
 
49
struct ui_out_level
50
  {
51
    /* Count each field; the first element is for non-list fields */
52
    int field_count;
53
    /* The type of this level. */
54
    enum ui_out_type type;
55
  };
56
 
57
/* Tables are special.  Maintain a separate structure that tracks
58
   their state.  At present an output can only contain a single table
59
   but that restriction might eventually be lifted.  */
60
 
61
struct ui_out_table
62
{
63
  /* If on, a table is being generated.  */
64
  int flag;
65
 
66
  /* If on, the body of a table is being generated.  If off, the table
67
     header is being generated.  */
68
  int body_flag;
69
 
70
  /* The level at which each entry of the table is to be found.  A row
71
     (a tuple) is made up of entries.  Consequently ENTRY_LEVEL is one
72
     above that of the table.  */
73
  int entry_level;
74
 
75
  /* Number of table columns (as specified in the table_begin call).  */
76
  int columns;
77
 
78
  /* String identifying the table (as specified in the table_begin
79
     call).  */
80
  char *id;
81
 
82
  /* Points to the first table header (if any).  */
83
  struct ui_out_hdr *header_first;
84
 
85
  /* Points to the last table header (if any).  */
86
  struct ui_out_hdr *header_last;
87
 
88
  /* Points to header of NEXT column to format.  */
89
  struct ui_out_hdr *header_next;
90
 
91
};
92
 
93
 
94
/* The ui_out structure */
95
/* Any change here requires a corresponding one in the initialization
96
   of the default uiout, which is statically initialized */
97
 
98
struct ui_out
99
  {
100
    int flags;
101
    /* specific implementation of ui-out */
102
    struct ui_out_impl *impl;
103
    struct ui_out_data *data;
104
 
105
    /* Sub structure tracking the ui-out depth.  */
106
    int level;
107
    struct ui_out_level levels[MAX_UI_OUT_LEVELS];
108
 
109
    /* A table, if any.  At present only a single table is supported.  */
110
    struct ui_out_table table;
111
  };
112
 
113
/* The current (inner most) level. */
114
static struct ui_out_level *
115
current_level (struct ui_out *uiout)
116
{
117
  return &uiout->levels[uiout->level];
118
}
119
 
120
/* Create a new level, of TYPE.  Return the new level's index. */
121
static int
122
push_level (struct ui_out *uiout,
123
            enum ui_out_type type,
124
            const char *id)
125
{
126
  struct ui_out_level *current;
127
  /* We had better not overflow the buffer. */
128
  uiout->level++;
129
  gdb_assert (uiout->level >= 0 && uiout->level < MAX_UI_OUT_LEVELS);
130
  current = current_level (uiout);
131
  current->field_count = 0;
132
  current->type = type;
133
  return uiout->level;
134
}
135
 
136
/* Discard the current level, return the discarded level's index.
137
   TYPE is the type of the level being discarded. */
138
static int
139
pop_level (struct ui_out *uiout,
140
           enum ui_out_type type)
141
{
142
  /* We had better not underflow the buffer. */
143
  gdb_assert (uiout->level > 0 && uiout->level < MAX_UI_OUT_LEVELS);
144
  gdb_assert (current_level (uiout)->type == type);
145
  uiout->level--;
146
  return uiout->level + 1;
147
}
148
 
149
 
150
/* These are the default implementation functions */
151
 
152
static void default_table_begin (struct ui_out *uiout, int nbrofcols,
153
                                 int nr_rows, const char *tblid);
154
static void default_table_body (struct ui_out *uiout);
155
static void default_table_end (struct ui_out *uiout);
156
static void default_table_header (struct ui_out *uiout, int width,
157
                                  enum ui_align alig, const char *col_name,
158
                                  const char *colhdr);
159
static void default_begin (struct ui_out *uiout,
160
                           enum ui_out_type type,
161
                           int level, const char *id);
162
static void default_end (struct ui_out *uiout,
163
                         enum ui_out_type type,
164
                         int level);
165
static void default_field_int (struct ui_out *uiout, int fldno, int width,
166
                               enum ui_align alig,
167
                               const char *fldname,
168
                               int value);
169
static void default_field_skip (struct ui_out *uiout, int fldno, int width,
170
                                enum ui_align alig,
171
                                const char *fldname);
172
static void default_field_string (struct ui_out *uiout, int fldno, int width,
173
                                  enum ui_align align,
174
                                  const char *fldname,
175
                                  const char *string);
176
static void default_field_fmt (struct ui_out *uiout, int fldno,
177
                               int width, enum ui_align align,
178
                               const char *fldname,
179
                               const char *format,
180
                               va_list args) ATTR_FORMAT (printf, 6, 0);
181
static void default_spaces (struct ui_out *uiout, int numspaces);
182
static void default_text (struct ui_out *uiout, const char *string);
183
static void default_message (struct ui_out *uiout, int verbosity,
184
                             const char *format,
185
                             va_list args) ATTR_FORMAT (printf, 3, 0);
186
static void default_wrap_hint (struct ui_out *uiout, char *identstring);
187
static void default_flush (struct ui_out *uiout);
188
 
189
/* This is the default ui-out implementation functions vector */
190
 
191
struct ui_out_impl default_ui_out_impl =
192
{
193
  default_table_begin,
194
  default_table_body,
195
  default_table_end,
196
  default_table_header,
197
  default_begin,
198
  default_end,
199
  default_field_int,
200
  default_field_skip,
201
  default_field_string,
202
  default_field_fmt,
203
  default_spaces,
204
  default_text,
205
  default_message,
206
  default_wrap_hint,
207
  default_flush,
208
  NULL,
209
  0, /* Does not need MI hacks.  */
210
};
211
 
212
/* The default ui_out */
213
 
214
struct ui_out def_uiout =
215
{
216
  0,                             /* flags */
217
  &default_ui_out_impl,         /* impl */
218
};
219
 
220
/* Pointer to current ui_out */
221
/* FIXME: This should not be a global, but something passed down from main.c
222
   or top.c */
223
 
224
struct ui_out *uiout = &def_uiout;
225
 
226
/* These are the interfaces to implementation functions */
227
 
228
static void uo_table_begin (struct ui_out *uiout, int nbrofcols,
229
                            int nr_rows, const char *tblid);
230
static void uo_table_body (struct ui_out *uiout);
231
static void uo_table_end (struct ui_out *uiout);
232
static void uo_table_header (struct ui_out *uiout, int width,
233
                             enum ui_align align, const char *col_name,
234
                             const char *colhdr);
235
static void uo_begin (struct ui_out *uiout,
236
                      enum ui_out_type type,
237
                      int level, const char *id);
238
static void uo_end (struct ui_out *uiout,
239
                    enum ui_out_type type,
240
                    int level);
241
static void uo_field_int (struct ui_out *uiout, int fldno, int width,
242
                          enum ui_align align, const char *fldname, int value);
243
static void uo_field_skip (struct ui_out *uiout, int fldno, int width,
244
                           enum ui_align align, const char *fldname);
245
static void uo_field_string (struct ui_out *uiout, int fldno, int width,
246
                             enum ui_align align, const char *fldname,
247
                             const char *string);
248
static void uo_field_fmt (struct ui_out *uiout, int fldno, int width,
249
                          enum ui_align align, const char *fldname,
250
                          const char *format, va_list args)
251
     ATTR_FORMAT (printf, 6, 0);
252
static void uo_spaces (struct ui_out *uiout, int numspaces);
253
static void uo_text (struct ui_out *uiout, const char *string);
254
static void uo_message (struct ui_out *uiout, int verbosity,
255
                        const char *format, va_list args)
256
     ATTR_FORMAT (printf, 3, 0);
257
static void uo_wrap_hint (struct ui_out *uiout, char *identstring);
258
static void uo_flush (struct ui_out *uiout);
259
static int uo_redirect (struct ui_out *uiout, struct ui_file *outstream);
260
 
261
/* Prototypes for local functions */
262
 
263
extern void _initialize_ui_out (void);
264
static void append_header_to_list (struct ui_out *uiout, int width,
265
                                   int alignment, const char *col_name,
266
                                   const char *colhdr);
267
static int get_next_header (struct ui_out *uiout, int *colno, int *width,
268
                            int *alignment, char **colhdr);
269
static void clear_header_list (struct ui_out *uiout);
270
static void verify_field (struct ui_out *uiout, int *fldno, int *width,
271
                          int *align);
272
 
273
/* exported functions (ui_out API) */
274
 
275
/* Mark beginning of a table */
276
 
277
static void
278
ui_out_table_begin (struct ui_out *uiout, int nbrofcols,
279
                    int nr_rows,
280
                    const char *tblid)
281
{
282
  if (uiout->table.flag)
283
    internal_error (__FILE__, __LINE__,
284
                    _("tables cannot be nested; table_begin found before \
285
previous table_end."));
286
 
287
  uiout->table.flag = 1;
288
  uiout->table.body_flag = 0;
289
  uiout->table.entry_level = uiout->level + 1;
290
  uiout->table.columns = nbrofcols;
291
  if (tblid != NULL)
292
    uiout->table.id = xstrdup (tblid);
293
  else
294
    uiout->table.id = NULL;
295
  clear_header_list (uiout);
296
 
297
  uo_table_begin (uiout, nbrofcols, nr_rows, uiout->table.id);
298
}
299
 
300
void
301
ui_out_table_body (struct ui_out *uiout)
302
{
303
  if (!uiout->table.flag)
304
    internal_error (__FILE__, __LINE__,
305
                    _("table_body outside a table is not valid; it must be \
306
after a table_begin and before a table_end."));
307
  if (uiout->table.body_flag)
308
    internal_error (__FILE__, __LINE__,
309
                    _("extra table_body call not allowed; there must be \
310
only one table_body after a table_begin and before a table_end."));
311
  if (uiout->table.header_next->colno != uiout->table.columns)
312
    internal_error (__FILE__, __LINE__,
313
                    _("number of headers differ from number of table \
314
columns."));
315
 
316
  uiout->table.body_flag = 1;
317
  uiout->table.header_next = uiout->table.header_first;
318
 
319
  uo_table_body (uiout);
320
}
321
 
322
static void
323
ui_out_table_end (struct ui_out *uiout)
324
{
325
  if (!uiout->table.flag)
326
    internal_error (__FILE__, __LINE__,
327
                    _("misplaced table_end or missing table_begin."));
328
 
329
  uiout->table.entry_level = 0;
330
  uiout->table.body_flag = 0;
331
  uiout->table.flag = 0;
332
 
333
  uo_table_end (uiout);
334
 
335
  if (uiout->table.id)
336
    xfree (uiout->table.id);
337
  clear_header_list (uiout);
338
}
339
 
340
void
341
ui_out_table_header (struct ui_out *uiout, int width, enum ui_align alignment,
342
                     const char *col_name,
343
                     const char *colhdr)
344
{
345
  if (!uiout->table.flag || uiout->table.body_flag)
346
    internal_error (__FILE__, __LINE__,
347
                    _("table header must be specified after table_begin \
348
and before table_body."));
349
 
350
  append_header_to_list (uiout, width, alignment, col_name, colhdr);
351
 
352
  uo_table_header (uiout, width, alignment, col_name, colhdr);
353
}
354
 
355
static void
356
do_cleanup_table_end (void *data)
357
{
358
  struct ui_out *ui_out = data;
359
 
360
  ui_out_table_end (ui_out);
361
}
362
 
363
struct cleanup *
364
make_cleanup_ui_out_table_begin_end (struct ui_out *ui_out, int nr_cols,
365
                                     int nr_rows, const char *tblid)
366
{
367
  ui_out_table_begin (ui_out, nr_cols, nr_rows, tblid);
368
  return make_cleanup (do_cleanup_table_end, ui_out);
369
}
370
 
371
void
372
ui_out_begin (struct ui_out *uiout,
373
              enum ui_out_type type,
374
              const char *id)
375
{
376
  int new_level;
377
  if (uiout->table.flag && !uiout->table.body_flag)
378
    internal_error (__FILE__, __LINE__,
379
                    _("table header or table_body expected; lists must be \
380
specified after table_body."));
381
 
382
  /* Be careful to verify the ``field'' before the new tuple/list is
383
     pushed onto the stack.  That way the containing list/table/row is
384
     verified and not the newly created tuple/list.  This verification
385
     is needed (at least) for the case where a table row entry
386
     contains either a tuple/list.  For that case bookkeeping such as
387
     updating the column count or advancing to the next heading still
388
     needs to be performed.  */
389
  {
390
    int fldno;
391
    int width;
392
    int align;
393
    verify_field (uiout, &fldno, &width, &align);
394
  }
395
 
396
  new_level = push_level (uiout, type, id);
397
 
398
  /* If the push puts us at the same level as a table row entry, we've
399
     got a new table row.  Put the header pointer back to the start.  */
400
  if (uiout->table.body_flag
401
      && uiout->table.entry_level == new_level)
402
    uiout->table.header_next = uiout->table.header_first;
403
 
404
  uo_begin (uiout, type, new_level, id);
405
}
406
 
407
void
408
ui_out_end (struct ui_out *uiout,
409
            enum ui_out_type type)
410
{
411
  int old_level = pop_level (uiout, type);
412
  uo_end (uiout, type, old_level);
413
}
414
 
415
struct ui_out_end_cleanup_data
416
{
417
  struct ui_out *uiout;
418
  enum ui_out_type type;
419
};
420
 
421
static void
422
do_cleanup_end (void *data)
423
{
424
  struct ui_out_end_cleanup_data *end_cleanup_data = data;
425
  ui_out_end (end_cleanup_data->uiout, end_cleanup_data->type);
426
  xfree (end_cleanup_data);
427
}
428
 
429
static struct cleanup *
430
make_cleanup_ui_out_end (struct ui_out *uiout,
431
                         enum ui_out_type type)
432
{
433
  struct ui_out_end_cleanup_data *end_cleanup_data;
434
  end_cleanup_data = XMALLOC (struct ui_out_end_cleanup_data);
435
  end_cleanup_data->uiout = uiout;
436
  end_cleanup_data->type = type;
437
  return make_cleanup (do_cleanup_end, end_cleanup_data);
438
}
439
 
440
struct cleanup *
441
make_cleanup_ui_out_tuple_begin_end (struct ui_out *uiout,
442
                                     const char *id)
443
{
444
  ui_out_begin (uiout, ui_out_type_tuple, id);
445
  return make_cleanup_ui_out_end (uiout, ui_out_type_tuple);
446
}
447
 
448
struct cleanup *
449
make_cleanup_ui_out_list_begin_end (struct ui_out *uiout,
450
                                    const char *id)
451
{
452
  ui_out_begin (uiout, ui_out_type_list, id);
453
  return make_cleanup_ui_out_end (uiout, ui_out_type_list);
454
}
455
 
456
void
457
ui_out_field_int (struct ui_out *uiout,
458
                  const char *fldname,
459
                  int value)
460
{
461
  int fldno;
462
  int width;
463
  int align;
464
  struct ui_out_level *current = current_level (uiout);
465
 
466
  verify_field (uiout, &fldno, &width, &align);
467
 
468
  uo_field_int (uiout, fldno, width, align, fldname, value);
469
}
470
 
471
void
472
ui_out_field_fmt_int (struct ui_out *uiout,
473
                      int input_width,
474
                      enum ui_align input_align,
475
                      const char *fldname,
476
                      int value)
477
{
478
  int fldno;
479
  int width;
480
  int align;
481
  struct ui_out_level *current = current_level (uiout);
482
 
483
  verify_field (uiout, &fldno, &width, &align);
484
 
485
  uo_field_int (uiout, fldno, input_width, input_align, fldname, value);
486
}
487
 
488
void
489
ui_out_field_core_addr (struct ui_out *uiout,
490
                        const char *fldname,
491
                        struct gdbarch *gdbarch,
492
                        CORE_ADDR address)
493
{
494
  char addstr[20];
495
  int addr_bit = gdbarch_addr_bit (gdbarch);
496
 
497
  if (addr_bit < (sizeof (CORE_ADDR) * HOST_CHAR_BIT))
498
    address &= ((CORE_ADDR) 1 << addr_bit) - 1;
499
 
500
  /* FIXME: cagney/2002-05-03: Need local_address_string() function
501
     that returns the language localized string formatted to a width
502
     based on gdbarch_addr_bit.  */
503
  if (addr_bit <= 32)
504
    strcpy (addstr, hex_string_custom (address, 8));
505
  else
506
    strcpy (addstr, hex_string_custom (address, 16));
507
 
508
  ui_out_field_string (uiout, fldname, addstr);
509
}
510
 
511
void
512
ui_out_field_stream (struct ui_out *uiout,
513
                     const char *fldname,
514
                     struct ui_stream *buf)
515
{
516
  long length;
517
  char *buffer = ui_file_xstrdup (buf->stream, &length);
518
  struct cleanup *old_cleanup = make_cleanup (xfree, buffer);
519
  if (length > 0)
520
    ui_out_field_string (uiout, fldname, buffer);
521
  else
522
    ui_out_field_skip (uiout, fldname);
523
  ui_file_rewind (buf->stream);
524
  do_cleanups (old_cleanup);
525
}
526
 
527
/* used to ommit a field */
528
 
529
void
530
ui_out_field_skip (struct ui_out *uiout,
531
                   const char *fldname)
532
{
533
  int fldno;
534
  int width;
535
  int align;
536
 
537
  verify_field (uiout, &fldno, &width, &align);
538
 
539
  uo_field_skip (uiout, fldno, width, align, fldname);
540
}
541
 
542
void
543
ui_out_field_string (struct ui_out *uiout,
544
                     const char *fldname,
545
                     const char *string)
546
{
547
  int fldno;
548
  int width;
549
  int align;
550
 
551
  verify_field (uiout, &fldno, &width, &align);
552
 
553
  uo_field_string (uiout, fldno, width, align, fldname, string);
554
}
555
 
556
/* VARARGS */
557
void
558
ui_out_field_fmt (struct ui_out *uiout,
559
                  const char *fldname,
560
                  const char *format, ...)
561
{
562
  va_list args;
563
  int fldno;
564
  int width;
565
  int align;
566
 
567
  /* will not align, but has to call anyway */
568
  verify_field (uiout, &fldno, &width, &align);
569
 
570
  va_start (args, format);
571
 
572
  uo_field_fmt (uiout, fldno, width, align, fldname, format, args);
573
 
574
  va_end (args);
575
}
576
 
577
void
578
ui_out_spaces (struct ui_out *uiout, int numspaces)
579
{
580
  uo_spaces (uiout, numspaces);
581
}
582
 
583
void
584
ui_out_text (struct ui_out *uiout,
585
             const char *string)
586
{
587
  uo_text (uiout, string);
588
}
589
 
590
void
591
ui_out_message (struct ui_out *uiout, int verbosity,
592
                const char *format,...)
593
{
594
  va_list args;
595
 
596
  va_start (args, format);
597
 
598
  uo_message (uiout, verbosity, format, args);
599
 
600
  va_end (args);
601
}
602
 
603
struct ui_stream *
604
ui_out_stream_new (struct ui_out *uiout)
605
{
606
  struct ui_stream *tempbuf;
607
 
608
  tempbuf = XMALLOC (struct ui_stream);
609
  tempbuf->uiout = uiout;
610
  tempbuf->stream = mem_fileopen ();
611
  return tempbuf;
612
}
613
 
614
void
615
ui_out_stream_delete (struct ui_stream *buf)
616
{
617
  ui_file_delete (buf->stream);
618
  xfree (buf);
619
}
620
 
621
static void
622
do_stream_delete (void *buf)
623
{
624
  ui_out_stream_delete (buf);
625
}
626
 
627
struct cleanup *
628
make_cleanup_ui_out_stream_delete (struct ui_stream *buf)
629
{
630
  return make_cleanup (do_stream_delete, buf);
631
}
632
 
633
 
634
void
635
ui_out_wrap_hint (struct ui_out *uiout, char *identstring)
636
{
637
  uo_wrap_hint (uiout, identstring);
638
}
639
 
640
void
641
ui_out_flush (struct ui_out *uiout)
642
{
643
  uo_flush (uiout);
644
}
645
 
646
int
647
ui_out_redirect (struct ui_out *uiout, struct ui_file *outstream)
648
{
649
  return uo_redirect (uiout, outstream);
650
}
651
 
652
/* set the flags specified by the mask given */
653
int
654
ui_out_set_flags (struct ui_out *uiout, int mask)
655
{
656
  int oldflags = uiout->flags;
657
 
658
  uiout->flags |= mask;
659
 
660
  return oldflags;
661
}
662
 
663
/* clear the flags specified by the mask given */
664
int
665
ui_out_clear_flags (struct ui_out *uiout, int mask)
666
{
667
  int oldflags = uiout->flags;
668
 
669
  uiout->flags &= ~mask;
670
 
671
  return oldflags;
672
}
673
 
674
/* test the flags against the mask given */
675
int
676
ui_out_test_flags (struct ui_out *uiout, int mask)
677
{
678
  return (uiout->flags & mask);
679
}
680
 
681
/* obtain the current verbosity level (as stablished by the
682
   'set verbositylevel' command */
683
 
684
int
685
ui_out_get_verblvl (struct ui_out *uiout)
686
{
687
  /* FIXME: not implemented yet */
688
  return 0;
689
}
690
 
691
#if 0
692
void
693
ui_out_result_begin (struct ui_out *uiout, char *class)
694
{
695
}
696
 
697
void
698
ui_out_result_end (struct ui_out *uiout)
699
{
700
}
701
 
702
void
703
ui_out_info_begin (struct ui_out *uiout, char *class)
704
{
705
}
706
 
707
void
708
ui_out_info_end (struct ui_out *uiout)
709
{
710
}
711
 
712
void
713
ui_out_notify_begin (struct ui_out *uiout, char *class)
714
{
715
}
716
 
717
void
718
ui_out_notify_end (struct ui_out *uiout)
719
{
720
}
721
 
722
void
723
ui_out_error_begin (struct ui_out *uiout, char *class)
724
{
725
}
726
 
727
void
728
ui_out_error_end (struct ui_out *uiout)
729
{
730
}
731
#endif
732
 
733
#if 0
734
void
735
gdb_error (ui_out * uiout, int severity, char *format,...)
736
{
737
  va_list args;
738
}
739
 
740
void
741
gdb_query (struct ui_out *uiout, int qflags, char *qprompt)
742
{
743
}
744
#endif
745
 
746
int
747
ui_out_is_mi_like_p (struct ui_out *uiout)
748
{
749
  return uiout->impl->is_mi_like_p;
750
}
751
 
752
/* default gdb-out hook functions */
753
 
754
static void
755
default_table_begin (struct ui_out *uiout, int nbrofcols,
756
                     int nr_rows,
757
                     const char *tblid)
758
{
759
}
760
 
761
static void
762
default_table_body (struct ui_out *uiout)
763
{
764
}
765
 
766
static void
767
default_table_end (struct ui_out *uiout)
768
{
769
}
770
 
771
static void
772
default_table_header (struct ui_out *uiout, int width, enum ui_align alignment,
773
                      const char *col_name,
774
                      const char *colhdr)
775
{
776
}
777
 
778
static void
779
default_begin (struct ui_out *uiout,
780
               enum ui_out_type type,
781
               int level,
782
               const char *id)
783
{
784
}
785
 
786
static void
787
default_end (struct ui_out *uiout,
788
             enum ui_out_type type,
789
             int level)
790
{
791
}
792
 
793
static void
794
default_field_int (struct ui_out *uiout, int fldno, int width,
795
                   enum ui_align align,
796
                   const char *fldname, int value)
797
{
798
}
799
 
800
static void
801
default_field_skip (struct ui_out *uiout, int fldno, int width,
802
                    enum ui_align align, const char *fldname)
803
{
804
}
805
 
806
static void
807
default_field_string (struct ui_out *uiout,
808
                      int fldno,
809
                      int width,
810
                      enum ui_align align,
811
                      const char *fldname,
812
                      const char *string)
813
{
814
}
815
 
816
static void
817
default_field_fmt (struct ui_out *uiout, int fldno, int width,
818
                   enum ui_align align,
819
                   const char *fldname,
820
                   const char *format,
821
                   va_list args)
822
{
823
}
824
 
825
static void
826
default_spaces (struct ui_out *uiout, int numspaces)
827
{
828
}
829
 
830
static void
831
default_text (struct ui_out *uiout, const char *string)
832
{
833
}
834
 
835
static void
836
default_message (struct ui_out *uiout, int verbosity,
837
                 const char *format,
838
                 va_list args)
839
{
840
}
841
 
842
static void
843
default_wrap_hint (struct ui_out *uiout, char *identstring)
844
{
845
}
846
 
847
static void
848
default_flush (struct ui_out *uiout)
849
{
850
}
851
 
852
/* Interface to the implementation functions */
853
 
854
void
855
uo_table_begin (struct ui_out *uiout, int nbrofcols,
856
                int nr_rows,
857
                const char *tblid)
858
{
859
  if (!uiout->impl->table_begin)
860
    return;
861
  uiout->impl->table_begin (uiout, nbrofcols, nr_rows, tblid);
862
}
863
 
864
void
865
uo_table_body (struct ui_out *uiout)
866
{
867
  if (!uiout->impl->table_body)
868
    return;
869
  uiout->impl->table_body (uiout);
870
}
871
 
872
void
873
uo_table_end (struct ui_out *uiout)
874
{
875
  if (!uiout->impl->table_end)
876
    return;
877
  uiout->impl->table_end (uiout);
878
}
879
 
880
void
881
uo_table_header (struct ui_out *uiout, int width, enum ui_align align,
882
                 const char *col_name,
883
                 const char *colhdr)
884
{
885
  if (!uiout->impl->table_header)
886
    return;
887
  uiout->impl->table_header (uiout, width, align, col_name, colhdr);
888
}
889
 
890
void
891
uo_begin (struct ui_out *uiout,
892
          enum ui_out_type type,
893
          int level,
894
          const char *id)
895
{
896
  if (uiout->impl->begin == NULL)
897
    return;
898
  uiout->impl->begin (uiout, type, level, id);
899
}
900
 
901
void
902
uo_end (struct ui_out *uiout,
903
        enum ui_out_type type,
904
        int level)
905
{
906
  if (uiout->impl->end == NULL)
907
    return;
908
  uiout->impl->end (uiout, type, level);
909
}
910
 
911
void
912
uo_field_int (struct ui_out *uiout, int fldno, int width, enum ui_align align,
913
              const char *fldname,
914
              int value)
915
{
916
  if (!uiout->impl->field_int)
917
    return;
918
  uiout->impl->field_int (uiout, fldno, width, align, fldname, value);
919
}
920
 
921
void
922
uo_field_skip (struct ui_out *uiout, int fldno, int width, enum ui_align align,
923
               const char *fldname)
924
{
925
  if (!uiout->impl->field_skip)
926
    return;
927
  uiout->impl->field_skip (uiout, fldno, width, align, fldname);
928
}
929
 
930
void
931
uo_field_string (struct ui_out *uiout, int fldno, int width,
932
                 enum ui_align align,
933
                 const char *fldname,
934
                 const char *string)
935
{
936
  if (!uiout->impl->field_string)
937
    return;
938
  uiout->impl->field_string (uiout, fldno, width, align, fldname, string);
939
}
940
 
941
void
942
uo_field_fmt (struct ui_out *uiout, int fldno, int width, enum ui_align align,
943
              const char *fldname,
944
              const char *format,
945
              va_list args)
946
{
947
  if (!uiout->impl->field_fmt)
948
    return;
949
  uiout->impl->field_fmt (uiout, fldno, width, align, fldname, format, args);
950
}
951
 
952
void
953
uo_spaces (struct ui_out *uiout, int numspaces)
954
{
955
  if (!uiout->impl->spaces)
956
    return;
957
  uiout->impl->spaces (uiout, numspaces);
958
}
959
 
960
void
961
uo_text (struct ui_out *uiout,
962
         const char *string)
963
{
964
  if (!uiout->impl->text)
965
    return;
966
  uiout->impl->text (uiout, string);
967
}
968
 
969
void
970
uo_message (struct ui_out *uiout, int verbosity,
971
            const char *format,
972
            va_list args)
973
{
974
  if (!uiout->impl->message)
975
    return;
976
  uiout->impl->message (uiout, verbosity, format, args);
977
}
978
 
979
void
980
uo_wrap_hint (struct ui_out *uiout, char *identstring)
981
{
982
  if (!uiout->impl->wrap_hint)
983
    return;
984
  uiout->impl->wrap_hint (uiout, identstring);
985
}
986
 
987
void
988
uo_flush (struct ui_out *uiout)
989
{
990
  if (!uiout->impl->flush)
991
    return;
992
  uiout->impl->flush (uiout);
993
}
994
 
995
int
996
uo_redirect (struct ui_out *uiout, struct ui_file *outstream)
997
{
998
  if (!uiout->impl->redirect)
999
    return -1;
1000
  uiout->impl->redirect (uiout, outstream);
1001
  return 0;
1002
}
1003
 
1004
/* local functions */
1005
 
1006
/* list of column headers manipulation routines */
1007
 
1008
static void
1009
clear_header_list (struct ui_out *uiout)
1010
{
1011
  while (uiout->table.header_first != NULL)
1012
    {
1013
      uiout->table.header_next = uiout->table.header_first;
1014
      uiout->table.header_first = uiout->table.header_first->next;
1015
      if (uiout->table.header_next->colhdr != NULL)
1016
        xfree (uiout->table.header_next->colhdr);
1017
      xfree (uiout->table.header_next);
1018
    }
1019
  gdb_assert (uiout->table.header_first == NULL);
1020
  uiout->table.header_last = NULL;
1021
  uiout->table.header_next = NULL;
1022
}
1023
 
1024
static void
1025
append_header_to_list (struct ui_out *uiout,
1026
                       int width,
1027
                       int alignment,
1028
                       const char *col_name,
1029
                       const char *colhdr)
1030
{
1031
  struct ui_out_hdr *temphdr;
1032
 
1033
  temphdr = XMALLOC (struct ui_out_hdr);
1034
  temphdr->width = width;
1035
  temphdr->alignment = alignment;
1036
  /* We have to copy the column title as the original may be an
1037
     automatic.  */
1038
  if (colhdr != NULL)
1039
    temphdr->colhdr = xstrdup (colhdr);
1040
  else
1041
    temphdr->colhdr = NULL;
1042
 
1043
  if (col_name != NULL)
1044
    temphdr->col_name = xstrdup (col_name);
1045
  else if (colhdr != NULL)
1046
    temphdr->col_name = xstrdup (colhdr);
1047
  else
1048
    temphdr->col_name = NULL;
1049
 
1050
  temphdr->next = NULL;
1051
  if (uiout->table.header_first == NULL)
1052
    {
1053
      temphdr->colno = 1;
1054
      uiout->table.header_first = temphdr;
1055
      uiout->table.header_last = temphdr;
1056
    }
1057
  else
1058
    {
1059
      temphdr->colno = uiout->table.header_last->colno + 1;
1060
      uiout->table.header_last->next = temphdr;
1061
      uiout->table.header_last = temphdr;
1062
    }
1063
  uiout->table.header_next = uiout->table.header_last;
1064
}
1065
 
1066
/* Extract the format information for the NEXT header and and advance
1067
   the header pointer.  Return 0 if there was no next header.  */
1068
 
1069
static int
1070
get_next_header (struct ui_out *uiout,
1071
                 int *colno,
1072
                 int *width,
1073
                 int *alignment,
1074
                 char **colhdr)
1075
{
1076
  /* There may be no headers at all or we may have used all columns.  */
1077
  if (uiout->table.header_next == NULL)
1078
    return 0;
1079
  *colno = uiout->table.header_next->colno;
1080
  *width = uiout->table.header_next->width;
1081
  *alignment = uiout->table.header_next->alignment;
1082
  *colhdr = uiout->table.header_next->colhdr;
1083
  /* Advance the header pointer to the next entry.  */
1084
  uiout->table.header_next = uiout->table.header_next->next;
1085
  return 1;
1086
}
1087
 
1088
 
1089
/* Verify that the field/tuple/list is correctly positioned.  Return
1090
   the field number and corresponding alignment (if
1091
   available/applicable).  */
1092
 
1093
static void
1094
verify_field (struct ui_out *uiout, int *fldno, int *width, int *align)
1095
{
1096
  struct ui_out_level *current = current_level (uiout);
1097
  char *text;
1098
 
1099
  if (uiout->table.flag)
1100
    {
1101
      if (!uiout->table.body_flag)
1102
        internal_error (__FILE__, __LINE__,
1103
                        _("table_body missing; table fields must be \
1104
specified after table_body and inside a list."));
1105
      /* NOTE: cagney/2001-12-08: There was a check here to ensure
1106
         that this code was only executed when uiout->level was
1107
         greater than zero.  That no longer applies - this code is run
1108
         before each table row tuple is started and at that point the
1109
         level is zero.  */
1110
    }
1111
 
1112
  current->field_count += 1;
1113
 
1114
  if (uiout->table.body_flag
1115
      && uiout->table.entry_level == uiout->level
1116
      && get_next_header (uiout, fldno, width, align, &text))
1117
    {
1118
      if (*fldno != current->field_count)
1119
        internal_error (__FILE__, __LINE__,
1120
                        _("ui-out internal error in handling headers."));
1121
    }
1122
  else
1123
    {
1124
      *width = 0;
1125
      *align = ui_noalign;
1126
      *fldno = current->field_count;
1127
    }
1128
}
1129
 
1130
 
1131
/* access to ui_out format private members */
1132
 
1133
void
1134
ui_out_get_field_separator (struct ui_out *uiout)
1135
{
1136
}
1137
 
1138
/* Access to ui-out members data */
1139
 
1140
struct ui_out_data *
1141
ui_out_data (struct ui_out *uiout)
1142
{
1143
  return uiout->data;
1144
}
1145
 
1146
/* initalize private members at startup */
1147
 
1148
struct ui_out *
1149
ui_out_new (struct ui_out_impl *impl,
1150
            struct ui_out_data *data,
1151
            int flags)
1152
{
1153
  struct ui_out *uiout = XMALLOC (struct ui_out);
1154
  uiout->data = data;
1155
  uiout->impl = impl;
1156
  uiout->flags = flags;
1157
  uiout->table.flag = 0;
1158
  uiout->table.body_flag = 0;
1159
  uiout->level = 0;
1160
  memset (uiout->levels, 0, sizeof (uiout->levels));
1161
  uiout->table.header_first = NULL;
1162
  uiout->table.header_last = NULL;
1163
  uiout->table.header_next = NULL;
1164
  return uiout;
1165
}
1166
 
1167
/* standard gdb initialization hook */
1168
 
1169
void
1170
_initialize_ui_out (void)
1171
{
1172
  /* nothing needs to be done */
1173
}

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