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print.c
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1 /*-------------------------------------------------------------------------
2  *
3  * Query-result printing support for frontend code
4  *
5  * This file used to be part of psql, but now it's separated out to allow
6  * other frontend programs to use it. Because the printing code needs
7  * access to the cancel_pressed flag as well as SIGPIPE trapping and
8  * pager open/close functions, all that stuff came with it.
9  *
10  *
11  * Portions Copyright (c) 1996-2019, PostgreSQL Global Development Group
12  * Portions Copyright (c) 1994, Regents of the University of California
13  *
14  * src/fe_utils/print.c
15  *
16  *-------------------------------------------------------------------------
17  */
18 #include "postgres_fe.h"
19 
20 #include <limits.h>
21 #include <math.h>
22 #include <signal.h>
23 #include <unistd.h>
24 
25 #ifndef WIN32
26 #include <sys/ioctl.h> /* for ioctl() */
27 #endif
28 
29 #ifdef HAVE_TERMIOS_H
30 #include <termios.h>
31 #endif
32 
33 #include "fe_utils/print.h"
34 
35 #include "catalog/pg_type_d.h"
36 #include "fe_utils/mbprint.h"
37 
38 
39 /*
40  * If the calling program doesn't have any mechanism for setting
41  * cancel_pressed, it will have no effect.
42  *
43  * Note: print.c's general strategy for when to check cancel_pressed is to do
44  * so at completion of each row of output.
45  */
46 volatile bool cancel_pressed = false;
47 
48 static bool always_ignore_sigpipe = false;
49 
50 /* info for locale-aware numeric formatting; set up by setDecimalLocale() */
51 static char *decimal_point;
52 static int groupdigits;
53 static char *thousands_sep;
54 
55 static char default_footer[100];
57 
58 /* Line style control structures */
60 {
61  "ascii",
62  {
63  {"-", "+", "+", "+"},
64  {"-", "+", "+", "+"},
65  {"-", "+", "+", "+"},
66  {"", "|", "|", "|"}
67  },
68  "|",
69  "|",
70  "|",
71  " ",
72  "+",
73  " ",
74  "+",
75  ".",
76  ".",
77  true
78 };
79 
81 {
82  "old-ascii",
83  {
84  {"-", "+", "+", "+"},
85  {"-", "+", "+", "+"},
86  {"-", "+", "+", "+"},
87  {"", "|", "|", "|"}
88  },
89  ":",
90  ";",
91  " ",
92  "+",
93  " ",
94  " ",
95  " ",
96  " ",
97  " ",
98  false
99 };
100 
101 /* Default unicode linestyle format */
103 
104 typedef struct unicodeStyleRowFormat
105 {
106  const char *horizontal;
107  const char *vertical_and_right[2];
108  const char *vertical_and_left[2];
110 
112 {
113  const char *vertical;
114  const char *vertical_and_horizontal[2];
115  const char *up_and_horizontal[2];
116  const char *down_and_horizontal[2];
118 
120 {
121  const char *up_and_right;
122  const char *vertical;
123  const char *down_and_right;
124  const char *horizontal;
125  const char *down_and_left;
126  const char *left_and_right;
128 
129 typedef struct unicodeStyleFormat
130 {
131  unicodeStyleRowFormat row_style[2];
132  unicodeStyleColumnFormat column_style[2];
133  unicodeStyleBorderFormat border_style[2];
134  const char *header_nl_left;
135  const char *header_nl_right;
136  const char *nl_left;
137  const char *nl_right;
138  const char *wrap_left;
139  const char *wrap_right;
142 
144  {
145  {
146  /* ─ */
147  "\342\224\200",
148  /* ├╟ */
149  {"\342\224\234", "\342\225\237"},
150  /* ┤╢ */
151  {"\342\224\244", "\342\225\242"},
152  },
153  {
154  /* ═ */
155  "\342\225\220",
156  /* ╞╠ */
157  {"\342\225\236", "\342\225\240"},
158  /* ╡╣ */
159  {"\342\225\241", "\342\225\243"},
160  },
161  },
162  {
163  {
164  /* │ */
165  "\342\224\202",
166  /* ┼╪ */
167  {"\342\224\274", "\342\225\252"},
168  /* ┴╧ */
169  {"\342\224\264", "\342\225\247"},
170  /* ┬╤ */
171  {"\342\224\254", "\342\225\244"},
172  },
173  {
174  /* ║ */
175  "\342\225\221",
176  /* ╫╬ */
177  {"\342\225\253", "\342\225\254"},
178  /* ╨╩ */
179  {"\342\225\250", "\342\225\251"},
180  /* ╥╦ */
181  {"\342\225\245", "\342\225\246"},
182  },
183  },
184  {
185  /* └│┌─┐┘ */
186  {"\342\224\224", "\342\224\202", "\342\224\214", "\342\224\200", "\342\224\220", "\342\224\230"},
187  /* ╚║╔═╗╝ */
188  {"\342\225\232", "\342\225\221", "\342\225\224", "\342\225\220", "\342\225\227", "\342\225\235"},
189  },
190  " ",
191  "\342\206\265", /* ↵ */
192  " ",
193  "\342\206\265", /* ↵ */
194  "\342\200\246", /* … */
195  "\342\200\246", /* … */
196  true
197 };
198 
199 
200 /* Local functions */
201 static int strlen_max_width(unsigned char *str, int *target_width, int encoding);
202 static void IsPagerNeeded(const printTableContent *cont, int extra_lines, bool expanded,
203  FILE **fout, bool *is_pager);
204 
205 static void print_aligned_vertical(const printTableContent *cont,
206  FILE *fout, bool is_pager);
207 
208 
209 /* Count number of digits in integral part of number */
210 static int
211 integer_digits(const char *my_str)
212 {
213  /* ignoring any sign ... */
214  if (my_str[0] == '-' || my_str[0] == '+')
215  my_str++;
216  /* ... count initial integral digits */
217  return strspn(my_str, "0123456789");
218 }
219 
220 /* Compute additional length required for locale-aware numeric output */
221 static int
222 additional_numeric_locale_len(const char *my_str)
223 {
224  int int_len = integer_digits(my_str),
225  len = 0;
226 
227  /* Account for added thousands_sep instances */
228  if (int_len > groupdigits)
229  len += ((int_len - 1) / groupdigits) * strlen(thousands_sep);
230 
231  /* Account for possible additional length of decimal_point */
232  if (strchr(my_str, '.') != NULL)
233  len += strlen(decimal_point) - 1;
234 
235  return len;
236 }
237 
238 /*
239  * Format a numeric value per current LC_NUMERIC locale setting
240  *
241  * Returns the appropriately formatted string in a new allocated block,
242  * caller must free.
243  *
244  * setDecimalLocale() must have been called earlier.
245  */
246 static char *
247 format_numeric_locale(const char *my_str)
248 {
249  char *new_str;
250  int new_len,
251  int_len,
252  leading_digits,
253  i,
254  new_str_pos;
255 
256  /*
257  * If the string doesn't look like a number, return it unchanged. This
258  * check is essential to avoid mangling already-localized "money" values.
259  */
260  if (strspn(my_str, "0123456789+-.eE") != strlen(my_str))
261  return pg_strdup(my_str);
262 
263  new_len = strlen(my_str) + additional_numeric_locale_len(my_str);
264  new_str = pg_malloc(new_len + 1);
265  new_str_pos = 0;
266  int_len = integer_digits(my_str);
267 
268  /* number of digits in first thousands group */
269  leading_digits = int_len % groupdigits;
270  if (leading_digits == 0)
271  leading_digits = groupdigits;
272 
273  /* process sign */
274  if (my_str[0] == '-' || my_str[0] == '+')
275  {
276  new_str[new_str_pos++] = my_str[0];
277  my_str++;
278  }
279 
280  /* process integer part of number */
281  for (i = 0; i < int_len; i++)
282  {
283  /* Time to insert separator? */
284  if (i > 0 && --leading_digits == 0)
285  {
286  strcpy(&new_str[new_str_pos], thousands_sep);
287  new_str_pos += strlen(thousands_sep);
288  leading_digits = groupdigits;
289  }
290  new_str[new_str_pos++] = my_str[i];
291  }
292 
293  /* handle decimal point if any */
294  if (my_str[i] == '.')
295  {
296  strcpy(&new_str[new_str_pos], decimal_point);
297  new_str_pos += strlen(decimal_point);
298  i++;
299  }
300 
301  /* copy the rest (fractional digits and/or exponent, and \0 terminator) */
302  strcpy(&new_str[new_str_pos], &my_str[i]);
303 
304  /* assert we didn't underestimate new_len (an overestimate is OK) */
305  Assert(strlen(new_str) <= new_len);
306 
307  return new_str;
308 }
309 
310 
311 /*
312  * fputnbytes: print exactly N bytes to a file
313  *
314  * We avoid using %.*s here because it can misbehave if the data
315  * is not valid in what libc thinks is the prevailing encoding.
316  */
317 static void
318 fputnbytes(FILE *f, const char *str, size_t n)
319 {
320  while (n-- > 0)
321  fputc(*str++, f);
322 }
323 
324 
325 static void
326 print_separator(struct separator sep, FILE *fout)
327 {
328  if (sep.separator_zero)
329  fputc('\000', fout);
330  else if (sep.separator)
331  fputs(sep.separator, fout);
332 }
333 
334 
335 /*
336  * Return the list of explicitly-requested footers or, when applicable, the
337  * default "(xx rows)" footer. Always omit the default footer when given
338  * non-default footers, "\pset footer off", or a specific instruction to that
339  * effect from a calling backslash command. Vertical formats number each row,
340  * making the default footer redundant; they do not call this function.
341  *
342  * The return value may point to static storage; do not keep it across calls.
343  */
344 static printTableFooter *
346 {
347  if (cont->footers == NULL && cont->opt->default_footer)
348  {
349  unsigned long total_records;
350 
351  total_records = cont->opt->prior_records + cont->nrows;
353  ngettext("(%lu row)", "(%lu rows)", total_records),
354  total_records);
355 
356  return &default_footer_cell;
357  }
358  else
359  return cont->footers;
360 }
361 
362 
363 /*************************/
364 /* Unaligned text */
365 /*************************/
366 
367 
368 static void
369 print_unaligned_text(const printTableContent *cont, FILE *fout)
370 {
371  bool opt_tuples_only = cont->opt->tuples_only;
372  unsigned int i;
373  const char *const *ptr;
374  bool need_recordsep = false;
375 
376  if (cancel_pressed)
377  return;
378 
379  if (cont->opt->start_table)
380  {
381  /* print title */
382  if (!opt_tuples_only && cont->title)
383  {
384  fputs(cont->title, fout);
385  print_separator(cont->opt->recordSep, fout);
386  }
387 
388  /* print headers */
389  if (!opt_tuples_only)
390  {
391  for (ptr = cont->headers; *ptr; ptr++)
392  {
393  if (ptr != cont->headers)
394  print_separator(cont->opt->fieldSep, fout);
395  fputs(*ptr, fout);
396  }
397  need_recordsep = true;
398  }
399  }
400  else
401  /* assume continuing printout */
402  need_recordsep = true;
403 
404  /* print cells */
405  for (i = 0, ptr = cont->cells; *ptr; i++, ptr++)
406  {
407  if (need_recordsep)
408  {
409  print_separator(cont->opt->recordSep, fout);
410  need_recordsep = false;
411  if (cancel_pressed)
412  break;
413  }
414  fputs(*ptr, fout);
415 
416  if ((i + 1) % cont->ncolumns)
417  print_separator(cont->opt->fieldSep, fout);
418  else
419  need_recordsep = true;
420  }
421 
422  /* print footers */
423  if (cont->opt->stop_table)
424  {
425  printTableFooter *footers = footers_with_default(cont);
426 
427  if (!opt_tuples_only && footers != NULL && !cancel_pressed)
428  {
429  printTableFooter *f;
430 
431  for (f = footers; f; f = f->next)
432  {
433  if (need_recordsep)
434  {
435  print_separator(cont->opt->recordSep, fout);
436  need_recordsep = false;
437  }
438  fputs(f->data, fout);
439  need_recordsep = true;
440  }
441  }
442 
443  /*
444  * The last record is terminated by a newline, independent of the set
445  * record separator. But when the record separator is a zero byte, we
446  * use that (compatible with find -print0 and xargs).
447  */
448  if (need_recordsep)
449  {
450  if (cont->opt->recordSep.separator_zero)
451  print_separator(cont->opt->recordSep, fout);
452  else
453  fputc('\n', fout);
454  }
455  }
456 }
457 
458 
459 static void
461 {
462  bool opt_tuples_only = cont->opt->tuples_only;
463  unsigned int i;
464  const char *const *ptr;
465  bool need_recordsep = false;
466 
467  if (cancel_pressed)
468  return;
469 
470  if (cont->opt->start_table)
471  {
472  /* print title */
473  if (!opt_tuples_only && cont->title)
474  {
475  fputs(cont->title, fout);
476  need_recordsep = true;
477  }
478  }
479  else
480  /* assume continuing printout */
481  need_recordsep = true;
482 
483  /* print records */
484  for (i = 0, ptr = cont->cells; *ptr; i++, ptr++)
485  {
486  if (need_recordsep)
487  {
488  /* record separator is 2 occurrences of recordsep in this mode */
489  print_separator(cont->opt->recordSep, fout);
490  print_separator(cont->opt->recordSep, fout);
491  need_recordsep = false;
492  if (cancel_pressed)
493  break;
494  }
495 
496  fputs(cont->headers[i % cont->ncolumns], fout);
497  print_separator(cont->opt->fieldSep, fout);
498  fputs(*ptr, fout);
499 
500  if ((i + 1) % cont->ncolumns)
501  print_separator(cont->opt->recordSep, fout);
502  else
503  need_recordsep = true;
504  }
505 
506  if (cont->opt->stop_table)
507  {
508  /* print footers */
509  if (!opt_tuples_only && cont->footers != NULL && !cancel_pressed)
510  {
511  printTableFooter *f;
512 
513  print_separator(cont->opt->recordSep, fout);
514  for (f = cont->footers; f; f = f->next)
515  {
516  print_separator(cont->opt->recordSep, fout);
517  fputs(f->data, fout);
518  }
519  }
520 
521  /* see above in print_unaligned_text() */
522  if (need_recordsep)
523  {
524  if (cont->opt->recordSep.separator_zero)
525  print_separator(cont->opt->recordSep, fout);
526  else
527  fputc('\n', fout);
528  }
529  }
530 }
531 
532 
533 /********************/
534 /* Aligned text */
535 /********************/
536 
537 
538 /* draw "line" */
539 static void
540 _print_horizontal_line(const unsigned int ncolumns, const unsigned int *widths,
541  unsigned short border, printTextRule pos,
542  const printTextFormat *format,
543  FILE *fout)
544 {
545  const printTextLineFormat *lformat = &format->lrule[pos];
546  unsigned int i,
547  j;
548 
549  if (border == 1)
550  fputs(lformat->hrule, fout);
551  else if (border == 2)
552  fprintf(fout, "%s%s", lformat->leftvrule, lformat->hrule);
553 
554  for (i = 0; i < ncolumns; i++)
555  {
556  for (j = 0; j < widths[i]; j++)
557  fputs(lformat->hrule, fout);
558 
559  if (i < ncolumns - 1)
560  {
561  if (border == 0)
562  fputc(' ', fout);
563  else
564  fprintf(fout, "%s%s%s", lformat->hrule,
565  lformat->midvrule, lformat->hrule);
566  }
567  }
568 
569  if (border == 2)
570  fprintf(fout, "%s%s", lformat->hrule, lformat->rightvrule);
571  else if (border == 1)
572  fputs(lformat->hrule, fout);
573 
574  fputc('\n', fout);
575 }
576 
577 
578 /*
579  * Print pretty boxes around cells.
580  */
581 static void
582 print_aligned_text(const printTableContent *cont, FILE *fout, bool is_pager)
583 {
584  bool opt_tuples_only = cont->opt->tuples_only;
585  int encoding = cont->opt->encoding;
586  unsigned short opt_border = cont->opt->border;
587  const printTextFormat *format = get_line_style(cont->opt);
588  const printTextLineFormat *dformat = &format->lrule[PRINT_RULE_DATA];
589 
590  unsigned int col_count = 0,
591  cell_count = 0;
592 
593  unsigned int i,
594  j;
595 
596  unsigned int *width_header,
597  *max_width,
598  *width_wrap,
599  *width_average;
600  unsigned int *max_nl_lines, /* value split by newlines */
601  *curr_nl_line,
602  *max_bytes;
603  unsigned char **format_buf;
604  unsigned int width_total;
605  unsigned int total_header_width;
606  unsigned int extra_row_output_lines = 0;
607  unsigned int extra_output_lines = 0;
608 
609  const char *const *ptr;
610 
611  struct lineptr **col_lineptrs; /* pointers to line pointer per column */
612 
613  bool *header_done; /* Have all header lines been output? */
614  int *bytes_output; /* Bytes output for column value */
615  printTextLineWrap *wrap; /* Wrap status for each column */
616  int output_columns = 0; /* Width of interactive console */
617  bool is_local_pager = false;
618 
619  if (cancel_pressed)
620  return;
621 
622  if (opt_border > 2)
623  opt_border = 2;
624 
625  if (cont->ncolumns > 0)
626  {
627  col_count = cont->ncolumns;
628  width_header = pg_malloc0(col_count * sizeof(*width_header));
629  width_average = pg_malloc0(col_count * sizeof(*width_average));
630  max_width = pg_malloc0(col_count * sizeof(*max_width));
631  width_wrap = pg_malloc0(col_count * sizeof(*width_wrap));
632  max_nl_lines = pg_malloc0(col_count * sizeof(*max_nl_lines));
633  curr_nl_line = pg_malloc0(col_count * sizeof(*curr_nl_line));
634  col_lineptrs = pg_malloc0(col_count * sizeof(*col_lineptrs));
635  max_bytes = pg_malloc0(col_count * sizeof(*max_bytes));
636  format_buf = pg_malloc0(col_count * sizeof(*format_buf));
637  header_done = pg_malloc0(col_count * sizeof(*header_done));
638  bytes_output = pg_malloc0(col_count * sizeof(*bytes_output));
639  wrap = pg_malloc0(col_count * sizeof(*wrap));
640  }
641  else
642  {
643  width_header = NULL;
644  width_average = NULL;
645  max_width = NULL;
646  width_wrap = NULL;
647  max_nl_lines = NULL;
648  curr_nl_line = NULL;
649  col_lineptrs = NULL;
650  max_bytes = NULL;
651  format_buf = NULL;
652  header_done = NULL;
653  bytes_output = NULL;
654  wrap = NULL;
655  }
656 
657  /* scan all column headers, find maximum width and max max_nl_lines */
658  for (i = 0; i < col_count; i++)
659  {
660  int width,
661  nl_lines,
662  bytes_required;
663 
664  pg_wcssize((const unsigned char *) cont->headers[i], strlen(cont->headers[i]),
665  encoding, &width, &nl_lines, &bytes_required);
666  if (width > max_width[i])
667  max_width[i] = width;
668  if (nl_lines > max_nl_lines[i])
669  max_nl_lines[i] = nl_lines;
670  if (bytes_required > max_bytes[i])
671  max_bytes[i] = bytes_required;
672  if (nl_lines > extra_row_output_lines)
673  extra_row_output_lines = nl_lines;
674 
675  width_header[i] = width;
676  }
677  /* Add height of tallest header column */
678  extra_output_lines += extra_row_output_lines;
679  extra_row_output_lines = 0;
680 
681  /* scan all cells, find maximum width, compute cell_count */
682  for (i = 0, ptr = cont->cells; *ptr; ptr++, i++, cell_count++)
683  {
684  int width,
685  nl_lines,
686  bytes_required;
687 
688  pg_wcssize((const unsigned char *) *ptr, strlen(*ptr), encoding,
689  &width, &nl_lines, &bytes_required);
690 
691  if (width > max_width[i % col_count])
692  max_width[i % col_count] = width;
693  if (nl_lines > max_nl_lines[i % col_count])
694  max_nl_lines[i % col_count] = nl_lines;
695  if (bytes_required > max_bytes[i % col_count])
696  max_bytes[i % col_count] = bytes_required;
697 
698  width_average[i % col_count] += width;
699  }
700 
701  /* If we have rows, compute average */
702  if (col_count != 0 && cell_count != 0)
703  {
704  int rows = cell_count / col_count;
705 
706  for (i = 0; i < col_count; i++)
707  width_average[i] /= rows;
708  }
709 
710  /* adjust the total display width based on border style */
711  if (opt_border == 0)
712  width_total = col_count;
713  else if (opt_border == 1)
714  width_total = col_count * 3 - ((col_count > 0) ? 1 : 0);
715  else
716  width_total = col_count * 3 + 1;
717  total_header_width = width_total;
718 
719  for (i = 0; i < col_count; i++)
720  {
721  width_total += max_width[i];
722  total_header_width += width_header[i];
723  }
724 
725  /*
726  * At this point: max_width[] contains the max width of each column,
727  * max_nl_lines[] contains the max number of lines in each column,
728  * max_bytes[] contains the maximum storage space for formatting strings,
729  * width_total contains the giant width sum. Now we allocate some memory
730  * for line pointers.
731  */
732  for (i = 0; i < col_count; i++)
733  {
734  /* Add entry for ptr == NULL array termination */
735  col_lineptrs[i] = pg_malloc0((max_nl_lines[i] + 1) *
736  sizeof(**col_lineptrs));
737 
738  format_buf[i] = pg_malloc(max_bytes[i] + 1);
739 
740  col_lineptrs[i]->ptr = format_buf[i];
741  }
742 
743  /* Default word wrap to the full width, i.e. no word wrap */
744  for (i = 0; i < col_count; i++)
745  width_wrap[i] = max_width[i];
746 
747  /*
748  * Choose target output width: \pset columns, or $COLUMNS, or ioctl
749  */
750  if (cont->opt->columns > 0)
751  output_columns = cont->opt->columns;
752  else if ((fout == stdout && isatty(fileno(stdout))) || is_pager)
753  {
754  if (cont->opt->env_columns > 0)
755  output_columns = cont->opt->env_columns;
756 #ifdef TIOCGWINSZ
757  else
758  {
759  struct winsize screen_size;
760 
761  if (ioctl(fileno(stdout), TIOCGWINSZ, &screen_size) != -1)
762  output_columns = screen_size.ws_col;
763  }
764 #endif
765  }
766 
767  if (cont->opt->format == PRINT_WRAPPED)
768  {
769  /*
770  * Optional optimized word wrap. Shrink columns with a high max/avg
771  * ratio. Slightly bias against wider columns. (Increases chance a
772  * narrow column will fit in its cell.) If available columns is
773  * positive... and greater than the width of the unshrinkable column
774  * headers
775  */
776  if (output_columns > 0 && output_columns >= total_header_width)
777  {
778  /* While there is still excess width... */
779  while (width_total > output_columns)
780  {
781  double max_ratio = 0;
782  int worst_col = -1;
783 
784  /*
785  * Find column that has the highest ratio of its maximum width
786  * compared to its average width. This tells us which column
787  * will produce the fewest wrapped values if shortened.
788  * width_wrap starts as equal to max_width.
789  */
790  for (i = 0; i < col_count; i++)
791  {
792  if (width_average[i] && width_wrap[i] > width_header[i])
793  {
794  /* Penalize wide columns by 1% of their width */
795  double ratio;
796 
797  ratio = (double) width_wrap[i] / width_average[i] +
798  max_width[i] * 0.01;
799  if (ratio > max_ratio)
800  {
801  max_ratio = ratio;
802  worst_col = i;
803  }
804  }
805  }
806 
807  /* Exit loop if we can't squeeze any more. */
808  if (worst_col == -1)
809  break;
810 
811  /* Decrease width of target column by one. */
812  width_wrap[worst_col]--;
813  width_total--;
814  }
815  }
816  }
817 
818  /*
819  * If in expanded auto mode, we have now calculated the expected width, so
820  * we can now escape to vertical mode if necessary. If the output has
821  * only one column, the expanded format would be wider than the regular
822  * format, so don't use it in that case.
823  */
824  if (cont->opt->expanded == 2 && output_columns > 0 && cont->ncolumns > 1 &&
825  (output_columns < total_header_width || output_columns < width_total))
826  {
827  print_aligned_vertical(cont, fout, is_pager);
828  goto cleanup;
829  }
830 
831  /* If we wrapped beyond the display width, use the pager */
832  if (!is_pager && fout == stdout && output_columns > 0 &&
833  (output_columns < total_header_width || output_columns < width_total))
834  {
835  fout = PageOutput(INT_MAX, cont->opt); /* force pager */
836  is_pager = is_local_pager = true;
837  }
838 
839  /* Check if newlines or our wrapping now need the pager */
840  if (!is_pager && fout == stdout)
841  {
842  /* scan all cells, find maximum width, compute cell_count */
843  for (i = 0, ptr = cont->cells; *ptr; ptr++, cell_count++)
844  {
845  int width,
846  nl_lines,
847  bytes_required;
848 
849  pg_wcssize((const unsigned char *) *ptr, strlen(*ptr), encoding,
850  &width, &nl_lines, &bytes_required);
851 
852  /*
853  * A row can have both wrapping and newlines that cause it to
854  * display across multiple lines. We check for both cases below.
855  */
856  if (width > 0 && width_wrap[i])
857  {
858  unsigned int extra_lines;
859 
860  /* don't count the first line of nl_lines - it's not "extra" */
861  extra_lines = ((width - 1) / width_wrap[i]) + nl_lines - 1;
862  if (extra_lines > extra_row_output_lines)
863  extra_row_output_lines = extra_lines;
864  }
865 
866  /* i is the current column number: increment with wrap */
867  if (++i >= col_count)
868  {
869  i = 0;
870  /* At last column of each row, add tallest column height */
871  extra_output_lines += extra_row_output_lines;
872  extra_row_output_lines = 0;
873  }
874  }
875  IsPagerNeeded(cont, extra_output_lines, false, &fout, &is_pager);
876  is_local_pager = is_pager;
877  }
878 
879  /* time to output */
880  if (cont->opt->start_table)
881  {
882  /* print title */
883  if (cont->title && !opt_tuples_only)
884  {
885  int width,
886  height;
887 
888  pg_wcssize((const unsigned char *) cont->title, strlen(cont->title),
889  encoding, &width, &height, NULL);
890  if (width >= width_total)
891  /* Aligned */
892  fprintf(fout, "%s\n", cont->title);
893  else
894  /* Centered */
895  fprintf(fout, "%-*s%s\n", (width_total - width) / 2, "",
896  cont->title);
897  }
898 
899  /* print headers */
900  if (!opt_tuples_only)
901  {
902  int more_col_wrapping;
903  int curr_nl_line;
904 
905  if (opt_border == 2)
906  _print_horizontal_line(col_count, width_wrap, opt_border,
907  PRINT_RULE_TOP, format, fout);
908 
909  for (i = 0; i < col_count; i++)
910  pg_wcsformat((const unsigned char *) cont->headers[i],
911  strlen(cont->headers[i]), encoding,
912  col_lineptrs[i], max_nl_lines[i]);
913 
914  more_col_wrapping = col_count;
915  curr_nl_line = 0;
916  memset(header_done, false, col_count * sizeof(bool));
917  while (more_col_wrapping)
918  {
919  if (opt_border == 2)
920  fputs(dformat->leftvrule, fout);
921 
922  for (i = 0; i < cont->ncolumns; i++)
923  {
924  struct lineptr *this_line = col_lineptrs[i] + curr_nl_line;
925  unsigned int nbspace;
926 
927  if (opt_border != 0 ||
928  (!format->wrap_right_border && i > 0))
929  fputs(curr_nl_line ? format->header_nl_left : " ",
930  fout);
931 
932  if (!header_done[i])
933  {
934  nbspace = width_wrap[i] - this_line->width;
935 
936  /* centered */
937  fprintf(fout, "%-*s%s%-*s",
938  nbspace / 2, "", this_line->ptr, (nbspace + 1) / 2, "");
939 
940  if (!(this_line + 1)->ptr)
941  {
942  more_col_wrapping--;
943  header_done[i] = 1;
944  }
945  }
946  else
947  fprintf(fout, "%*s", width_wrap[i], "");
948 
949  if (opt_border != 0 || format->wrap_right_border)
950  fputs(!header_done[i] ? format->header_nl_right : " ",
951  fout);
952 
953  if (opt_border != 0 && col_count > 0 && i < col_count - 1)
954  fputs(dformat->midvrule, fout);
955  }
956  curr_nl_line++;
957 
958  if (opt_border == 2)
959  fputs(dformat->rightvrule, fout);
960  fputc('\n', fout);
961  }
962 
963  _print_horizontal_line(col_count, width_wrap, opt_border,
964  PRINT_RULE_MIDDLE, format, fout);
965  }
966  }
967 
968  /* print cells, one loop per row */
969  for (i = 0, ptr = cont->cells; *ptr; i += col_count, ptr += col_count)
970  {
971  bool more_lines;
972 
973  if (cancel_pressed)
974  break;
975 
976  /*
977  * Format each cell.
978  */
979  for (j = 0; j < col_count; j++)
980  {
981  pg_wcsformat((const unsigned char *) ptr[j], strlen(ptr[j]), encoding,
982  col_lineptrs[j], max_nl_lines[j]);
983  curr_nl_line[j] = 0;
984  }
985 
986  memset(bytes_output, 0, col_count * sizeof(int));
987 
988  /*
989  * Each time through this loop, one display line is output. It can
990  * either be a full value or a partial value if embedded newlines
991  * exist or if 'format=wrapping' mode is enabled.
992  */
993  do
994  {
995  more_lines = false;
996 
997  /* left border */
998  if (opt_border == 2)
999  fputs(dformat->leftvrule, fout);
1000 
1001  /* for each column */
1002  for (j = 0; j < col_count; j++)
1003  {
1004  /* We have a valid array element, so index it */
1005  struct lineptr *this_line = &col_lineptrs[j][curr_nl_line[j]];
1006  int bytes_to_output;
1007  int chars_to_output = width_wrap[j];
1008  bool finalspaces = (opt_border == 2 ||
1009  (col_count > 0 && j < col_count - 1));
1010 
1011  /* Print left-hand wrap or newline mark */
1012  if (opt_border != 0)
1013  {
1014  if (wrap[j] == PRINT_LINE_WRAP_WRAP)
1015  fputs(format->wrap_left, fout);
1016  else if (wrap[j] == PRINT_LINE_WRAP_NEWLINE)
1017  fputs(format->nl_left, fout);
1018  else
1019  fputc(' ', fout);
1020  }
1021 
1022  if (!this_line->ptr)
1023  {
1024  /* Past newline lines so just pad for other columns */
1025  if (finalspaces)
1026  fprintf(fout, "%*s", chars_to_output, "");
1027  }
1028  else
1029  {
1030  /* Get strlen() of the characters up to width_wrap */
1031  bytes_to_output =
1032  strlen_max_width(this_line->ptr + bytes_output[j],
1033  &chars_to_output, encoding);
1034 
1035  /*
1036  * If we exceeded width_wrap, it means the display width
1037  * of a single character was wider than our target width.
1038  * In that case, we have to pretend we are only printing
1039  * the target display width and make the best of it.
1040  */
1041  if (chars_to_output > width_wrap[j])
1042  chars_to_output = width_wrap[j];
1043 
1044  if (cont->aligns[j] == 'r') /* Right aligned cell */
1045  {
1046  /* spaces first */
1047  fprintf(fout, "%*s", width_wrap[j] - chars_to_output, "");
1048  fputnbytes(fout,
1049  (char *) (this_line->ptr + bytes_output[j]),
1050  bytes_to_output);
1051  }
1052  else /* Left aligned cell */
1053  {
1054  /* spaces second */
1055  fputnbytes(fout,
1056  (char *) (this_line->ptr + bytes_output[j]),
1057  bytes_to_output);
1058  }
1059 
1060  bytes_output[j] += bytes_to_output;
1061 
1062  /* Do we have more text to wrap? */
1063  if (*(this_line->ptr + bytes_output[j]) != '\0')
1064  more_lines = true;
1065  else
1066  {
1067  /* Advance to next newline line */
1068  curr_nl_line[j]++;
1069  if (col_lineptrs[j][curr_nl_line[j]].ptr != NULL)
1070  more_lines = true;
1071  bytes_output[j] = 0;
1072  }
1073  }
1074 
1075  /* Determine next line's wrap status for this column */
1076  wrap[j] = PRINT_LINE_WRAP_NONE;
1077  if (col_lineptrs[j][curr_nl_line[j]].ptr != NULL)
1078  {
1079  if (bytes_output[j] != 0)
1080  wrap[j] = PRINT_LINE_WRAP_WRAP;
1081  else if (curr_nl_line[j] != 0)
1082  wrap[j] = PRINT_LINE_WRAP_NEWLINE;
1083  }
1084 
1085  /*
1086  * If left-aligned, pad out remaining space if needed (not
1087  * last column, and/or wrap marks required).
1088  */
1089  if (cont->aligns[j] != 'r') /* Left aligned cell */
1090  {
1091  if (finalspaces ||
1092  wrap[j] == PRINT_LINE_WRAP_WRAP ||
1093  wrap[j] == PRINT_LINE_WRAP_NEWLINE)
1094  fprintf(fout, "%*s",
1095  width_wrap[j] - chars_to_output, "");
1096  }
1097 
1098  /* Print right-hand wrap or newline mark */
1099  if (wrap[j] == PRINT_LINE_WRAP_WRAP)
1100  fputs(format->wrap_right, fout);
1101  else if (wrap[j] == PRINT_LINE_WRAP_NEWLINE)
1102  fputs(format->nl_right, fout);
1103  else if (opt_border == 2 || (col_count > 0 && j < col_count - 1))
1104  fputc(' ', fout);
1105 
1106  /* Print column divider, if not the last column */
1107  if (opt_border != 0 && (col_count > 0 && j < col_count - 1))
1108  {
1109  if (wrap[j + 1] == PRINT_LINE_WRAP_WRAP)
1110  fputs(format->midvrule_wrap, fout);
1111  else if (wrap[j + 1] == PRINT_LINE_WRAP_NEWLINE)
1112  fputs(format->midvrule_nl, fout);
1113  else if (col_lineptrs[j + 1][curr_nl_line[j + 1]].ptr == NULL)
1114  fputs(format->midvrule_blank, fout);
1115  else
1116  fputs(dformat->midvrule, fout);
1117  }
1118  }
1119 
1120  /* end-of-row border */
1121  if (opt_border == 2)
1122  fputs(dformat->rightvrule, fout);
1123  fputc('\n', fout);
1124 
1125  } while (more_lines);
1126  }
1127 
1128  if (cont->opt->stop_table)
1129  {
1130  printTableFooter *footers = footers_with_default(cont);
1131 
1132  if (opt_border == 2 && !cancel_pressed)
1133  _print_horizontal_line(col_count, width_wrap, opt_border,
1134  PRINT_RULE_BOTTOM, format, fout);
1135 
1136  /* print footers */
1137  if (footers && !opt_tuples_only && !cancel_pressed)
1138  {
1139  printTableFooter *f;
1140 
1141  for (f = footers; f; f = f->next)
1142  fprintf(fout, "%s\n", f->data);
1143  }
1144 
1145  fputc('\n', fout);
1146  }
1147 
1148 cleanup:
1149  /* clean up */
1150  for (i = 0; i < col_count; i++)
1151  {
1152  free(col_lineptrs[i]);
1153  free(format_buf[i]);
1154  }
1155  free(width_header);
1156  free(width_average);
1157  free(max_width);
1158  free(width_wrap);
1159  free(max_nl_lines);
1160  free(curr_nl_line);
1161  free(col_lineptrs);
1162  free(max_bytes);
1163  free(format_buf);
1164  free(header_done);
1165  free(bytes_output);
1166  free(wrap);
1167 
1168  if (is_local_pager)
1169  ClosePager(fout);
1170 }
1171 
1172 
1173 static void
1175  const unsigned short opt_border,
1176  unsigned long record,
1177  unsigned int hwidth,
1178  unsigned int dwidth,
1179  printTextRule pos,
1180  FILE *fout)
1181 {
1182  const printTextLineFormat *lformat = &format->lrule[pos];
1183  unsigned int i;
1184  int reclen = 0;
1185 
1186  if (opt_border == 2)
1187  fprintf(fout, "%s%s", lformat->leftvrule, lformat->hrule);
1188  else if (opt_border == 1)
1189  fputs(lformat->hrule, fout);
1190 
1191  if (record)
1192  {
1193  if (opt_border == 0)
1194  reclen = fprintf(fout, "* Record %lu", record);
1195  else
1196  reclen = fprintf(fout, "[ RECORD %lu ]", record);
1197  }
1198  if (opt_border != 2)
1199  reclen++;
1200  if (reclen < 0)
1201  reclen = 0;
1202  for (i = reclen; i < hwidth; i++)
1203  fputs(opt_border > 0 ? lformat->hrule : " ", fout);
1204  reclen -= hwidth;
1205 
1206  if (opt_border > 0)
1207  {
1208  if (reclen-- <= 0)
1209  fputs(lformat->hrule, fout);
1210  if (reclen-- <= 0)
1211  fputs(lformat->midvrule, fout);
1212  if (reclen-- <= 0)
1213  fputs(lformat->hrule, fout);
1214  }
1215  else
1216  {
1217  if (reclen-- <= 0)
1218  fputc(' ', fout);
1219  }
1220  if (reclen < 0)
1221  reclen = 0;
1222  for (i = reclen; i < dwidth; i++)
1223  fputs(opt_border > 0 ? lformat->hrule : " ", fout);
1224  if (opt_border == 2)
1225  fprintf(fout, "%s%s", lformat->hrule, lformat->rightvrule);
1226  fputc('\n', fout);
1227 }
1228 
1229 static void
1231  FILE *fout, bool is_pager)
1232 {
1233  bool opt_tuples_only = cont->opt->tuples_only;
1234  unsigned short opt_border = cont->opt->border;
1235  const printTextFormat *format = get_line_style(cont->opt);
1236  const printTextLineFormat *dformat = &format->lrule[PRINT_RULE_DATA];
1237  int encoding = cont->opt->encoding;
1238  unsigned long record = cont->opt->prior_records + 1;
1239  const char *const *ptr;
1240  unsigned int i,
1241  hwidth = 0,
1242  dwidth = 0,
1243  hheight = 1,
1244  dheight = 1,
1245  hformatsize = 0,
1246  dformatsize = 0;
1247  struct lineptr *hlineptr,
1248  *dlineptr;
1249  bool is_local_pager = false,
1250  hmultiline = false,
1251  dmultiline = false;
1252  int output_columns = 0; /* Width of interactive console */
1253 
1254  if (cancel_pressed)
1255  return;
1256 
1257  if (opt_border > 2)
1258  opt_border = 2;
1259 
1260  if (cont->cells[0] == NULL && cont->opt->start_table &&
1261  cont->opt->stop_table)
1262  {
1263  printTableFooter *footers = footers_with_default(cont);
1264 
1265  if (!opt_tuples_only && !cancel_pressed && footers)
1266  {
1267  printTableFooter *f;
1268 
1269  for (f = footers; f; f = f->next)
1270  fprintf(fout, "%s\n", f->data);
1271  }
1272 
1273  fputc('\n', fout);
1274 
1275  return;
1276  }
1277 
1278  /*
1279  * Deal with the pager here instead of in printTable(), because we could
1280  * get here via print_aligned_text() in expanded auto mode, and so we have
1281  * to recalculate the pager requirement based on vertical output.
1282  */
1283  if (!is_pager)
1284  {
1285  IsPagerNeeded(cont, 0, true, &fout, &is_pager);
1286  is_local_pager = is_pager;
1287  }
1288 
1289  /* Find the maximum dimensions for the headers */
1290  for (i = 0; i < cont->ncolumns; i++)
1291  {
1292  int width,
1293  height,
1294  fs;
1295 
1296  pg_wcssize((const unsigned char *) cont->headers[i], strlen(cont->headers[i]),
1297  encoding, &width, &height, &fs);
1298  if (width > hwidth)
1299  hwidth = width;
1300  if (height > hheight)
1301  {
1302  hheight = height;
1303  hmultiline = true;
1304  }
1305  if (fs > hformatsize)
1306  hformatsize = fs;
1307  }
1308 
1309  /* find longest data cell */
1310  for (i = 0, ptr = cont->cells; *ptr; ptr++, i++)
1311  {
1312  int width,
1313  height,
1314  fs;
1315 
1316  pg_wcssize((const unsigned char *) *ptr, strlen(*ptr), encoding,
1317  &width, &height, &fs);
1318  if (width > dwidth)
1319  dwidth = width;
1320  if (height > dheight)
1321  {
1322  dheight = height;
1323  dmultiline = true;
1324  }
1325  if (fs > dformatsize)
1326  dformatsize = fs;
1327  }
1328 
1329  /*
1330  * We now have all the information we need to setup the formatting
1331  * structures
1332  */
1333  dlineptr = pg_malloc((sizeof(*dlineptr)) * (dheight + 1));
1334  hlineptr = pg_malloc((sizeof(*hlineptr)) * (hheight + 1));
1335 
1336  dlineptr->ptr = pg_malloc(dformatsize);
1337  hlineptr->ptr = pg_malloc(hformatsize);
1338 
1339  if (cont->opt->start_table)
1340  {
1341  /* print title */
1342  if (!opt_tuples_only && cont->title)
1343  fprintf(fout, "%s\n", cont->title);
1344  }
1345 
1346  /*
1347  * Choose target output width: \pset columns, or $COLUMNS, or ioctl
1348  */
1349  if (cont->opt->columns > 0)
1350  output_columns = cont->opt->columns;
1351  else if ((fout == stdout && isatty(fileno(stdout))) || is_pager)
1352  {
1353  if (cont->opt->env_columns > 0)
1354  output_columns = cont->opt->env_columns;
1355 #ifdef TIOCGWINSZ
1356  else
1357  {
1358  struct winsize screen_size;
1359 
1360  if (ioctl(fileno(stdout), TIOCGWINSZ, &screen_size) != -1)
1361  output_columns = screen_size.ws_col;
1362  }
1363 #endif
1364  }
1365 
1366  /*
1367  * Calculate available width for data in wrapped mode
1368  */
1369  if (cont->opt->format == PRINT_WRAPPED)
1370  {
1371  unsigned int swidth,
1372  rwidth = 0,
1373  newdwidth;
1374 
1375  if (opt_border == 0)
1376  {
1377  /*
1378  * For border = 0, one space in the middle. (If we discover we
1379  * need to wrap, the spacer column will be replaced by a wrap
1380  * marker, and we'll make room below for another wrap marker at
1381  * the end of the line. But for now, assume no wrap is needed.)
1382  */
1383  swidth = 1;
1384 
1385  /* We might need a column for header newline markers, too */
1386  if (hmultiline)
1387  swidth++;
1388  }
1389  else if (opt_border == 1)
1390  {
1391  /*
1392  * For border = 1, two spaces and a vrule in the middle. (As
1393  * above, we might need one more column for a wrap marker.)
1394  */
1395  swidth = 3;
1396 
1397  /* We might need a column for left header newline markers, too */
1398  if (hmultiline && (format == &pg_asciiformat_old))
1399  swidth++;
1400  }
1401  else
1402  {
1403  /*
1404  * For border = 2, two more for the vrules at the beginning and
1405  * end of the lines, plus spacer columns adjacent to these. (We
1406  * won't need extra columns for wrap/newline markers, we'll just
1407  * repurpose the spacers.)
1408  */
1409  swidth = 7;
1410  }
1411 
1412  /* Reserve a column for data newline indicators, too, if needed */
1413  if (dmultiline &&
1414  opt_border < 2 && format != &pg_asciiformat_old)
1415  swidth++;
1416 
1417  /* Determine width required for record header lines */
1418  if (!opt_tuples_only)
1419  {
1420  if (cont->nrows > 0)
1421  rwidth = 1 + (int) log10(cont->nrows);
1422  if (opt_border == 0)
1423  rwidth += 9; /* "* RECORD " */
1424  else if (opt_border == 1)
1425  rwidth += 12; /* "-[ RECORD ]" */
1426  else
1427  rwidth += 15; /* "+-[ RECORD ]-+" */
1428  }
1429 
1430  /* We might need to do the rest of the calculation twice */
1431  for (;;)
1432  {
1433  unsigned int width;
1434 
1435  /* Total width required to not wrap data */
1436  width = hwidth + swidth + dwidth;
1437  /* ... and not the header lines, either */
1438  if (width < rwidth)
1439  width = rwidth;
1440 
1441  if (output_columns > 0)
1442  {
1443  unsigned int min_width;
1444 
1445  /* Minimum acceptable width: room for just 3 columns of data */
1446  min_width = hwidth + swidth + 3;
1447  /* ... but not less than what the record header lines need */
1448  if (min_width < rwidth)
1449  min_width = rwidth;
1450 
1451  if (output_columns >= width)
1452  {
1453  /* Plenty of room, use native data width */
1454  /* (but at least enough for the record header lines) */
1455  newdwidth = width - hwidth - swidth;
1456  }
1457  else if (output_columns < min_width)
1458  {
1459  /* Set data width to match min_width */
1460  newdwidth = min_width - hwidth - swidth;
1461  }
1462  else
1463  {
1464  /* Set data width to match output_columns */
1465  newdwidth = output_columns - hwidth - swidth;
1466  }
1467  }
1468  else
1469  {
1470  /* Don't know the wrap limit, so use native data width */
1471  /* (but at least enough for the record header lines) */
1472  newdwidth = width - hwidth - swidth;
1473  }
1474 
1475  /*
1476  * If we will need to wrap data and didn't already allocate a data
1477  * newline/wrap marker column, do so and recompute.
1478  */
1479  if (newdwidth < dwidth && !dmultiline &&
1480  opt_border < 2 && format != &pg_asciiformat_old)
1481  {
1482  dmultiline = true;
1483  swidth++;
1484  }
1485  else
1486  break;
1487  }
1488 
1489  dwidth = newdwidth;
1490  }
1491 
1492  /* print records */
1493  for (i = 0, ptr = cont->cells; *ptr; i++, ptr++)
1494  {
1495  printTextRule pos;
1496  int dline,
1497  hline,
1498  dcomplete,
1499  hcomplete,
1500  offset,
1501  chars_to_output;
1502 
1503  if (cancel_pressed)
1504  break;
1505 
1506  if (i == 0)
1507  pos = PRINT_RULE_TOP;
1508  else
1509  pos = PRINT_RULE_MIDDLE;
1510 
1511  /* Print record header (e.g. "[ RECORD N ]") above each record */
1512  if (i % cont->ncolumns == 0)
1513  {
1514  unsigned int lhwidth = hwidth;
1515 
1516  if ((opt_border < 2) &&
1517  (hmultiline) &&
1518  (format == &pg_asciiformat_old))
1519  lhwidth++; /* for newline indicators */
1520 
1521  if (!opt_tuples_only)
1522  print_aligned_vertical_line(format, opt_border, record++,
1523  lhwidth, dwidth, pos, fout);
1524  else if (i != 0 || !cont->opt->start_table || opt_border == 2)
1525  print_aligned_vertical_line(format, opt_border, 0, lhwidth,
1526  dwidth, pos, fout);
1527  }
1528 
1529  /* Format the header */
1530  pg_wcsformat((const unsigned char *) cont->headers[i % cont->ncolumns],
1531  strlen(cont->headers[i % cont->ncolumns]),
1532  encoding, hlineptr, hheight);
1533  /* Format the data */
1534  pg_wcsformat((const unsigned char *) *ptr, strlen(*ptr), encoding,
1535  dlineptr, dheight);
1536 
1537  /*
1538  * Loop through header and data in parallel dealing with newlines and
1539  * wrapped lines until they're both exhausted
1540  */
1541  dline = hline = 0;
1542  dcomplete = hcomplete = 0;
1543  offset = 0;
1544  chars_to_output = dlineptr[dline].width;
1545  while (!dcomplete || !hcomplete)
1546  {
1547  /* Left border */
1548  if (opt_border == 2)
1549  fprintf(fout, "%s", dformat->leftvrule);
1550 
1551  /* Header (never wrapped so just need to deal with newlines) */
1552  if (!hcomplete)
1553  {
1554  int swidth = hwidth,
1555  target_width = hwidth;
1556 
1557  /*
1558  * Left spacer or new line indicator
1559  */
1560  if ((opt_border == 2) ||
1561  (hmultiline && (format == &pg_asciiformat_old)))
1562  fputs(hline ? format->header_nl_left : " ", fout);
1563 
1564  /*
1565  * Header text
1566  */
1567  strlen_max_width(hlineptr[hline].ptr, &target_width,
1568  encoding);
1569  fprintf(fout, "%-s", hlineptr[hline].ptr);
1570 
1571  /*
1572  * Spacer
1573  */
1574  swidth -= target_width;
1575  if (swidth > 0)
1576  fprintf(fout, "%*s", swidth, " ");
1577 
1578  /*
1579  * New line indicator or separator's space
1580  */
1581  if (hlineptr[hline + 1].ptr)
1582  {
1583  /* More lines after this one due to a newline */
1584  if ((opt_border > 0) ||
1585  (hmultiline && (format != &pg_asciiformat_old)))
1586  fputs(format->header_nl_right, fout);
1587  hline++;
1588  }
1589  else
1590  {
1591  /* This was the last line of the header */
1592  if ((opt_border > 0) ||
1593  (hmultiline && (format != &pg_asciiformat_old)))
1594  fputs(" ", fout);
1595  hcomplete = 1;
1596  }
1597  }
1598  else
1599  {
1600  unsigned int swidth = hwidth + opt_border;
1601 
1602  if ((opt_border < 2) &&
1603  (hmultiline) &&
1604  (format == &pg_asciiformat_old))
1605  swidth++;
1606 
1607  if ((opt_border == 0) &&
1608  (format != &pg_asciiformat_old) &&
1609  (hmultiline))
1610  swidth++;
1611 
1612  fprintf(fout, "%*s", swidth, " ");
1613  }
1614 
1615  /* Separator */
1616  if (opt_border > 0)
1617  {
1618  if (offset)
1619  fputs(format->midvrule_wrap, fout);
1620  else if (dline == 0)
1621  fputs(dformat->midvrule, fout);
1622  else
1623  fputs(format->midvrule_nl, fout);
1624  }
1625 
1626  /* Data */
1627  if (!dcomplete)
1628  {
1629  int target_width = dwidth,
1630  bytes_to_output,
1631  swidth = dwidth;
1632 
1633  /*
1634  * Left spacer or wrap indicator
1635  */
1636  fputs(offset == 0 ? " " : format->wrap_left, fout);
1637 
1638  /*
1639  * Data text
1640  */
1641  bytes_to_output = strlen_max_width(dlineptr[dline].ptr + offset,
1642  &target_width, encoding);
1643  fputnbytes(fout, (char *) (dlineptr[dline].ptr + offset),
1644  bytes_to_output);
1645 
1646  chars_to_output -= target_width;
1647  offset += bytes_to_output;
1648 
1649  /* Spacer */
1650  swidth -= target_width;
1651 
1652  if (chars_to_output)
1653  {
1654  /* continuing a wrapped column */
1655  if ((opt_border > 1) ||
1656  (dmultiline && (format != &pg_asciiformat_old)))
1657  {
1658  if (swidth > 0)
1659  fprintf(fout, "%*s", swidth, " ");
1660  fputs(format->wrap_right, fout);
1661  }
1662  }
1663  else if (dlineptr[dline + 1].ptr)
1664  {
1665  /* reached a newline in the column */
1666  if ((opt_border > 1) ||
1667  (dmultiline && (format != &pg_asciiformat_old)))
1668  {
1669  if (swidth > 0)
1670  fprintf(fout, "%*s", swidth, " ");
1671  fputs(format->nl_right, fout);
1672  }
1673  dline++;
1674  offset = 0;
1675  chars_to_output = dlineptr[dline].width;
1676  }
1677  else
1678  {
1679  /* reached the end of the cell */
1680  if (opt_border > 1)
1681  {
1682  if (swidth > 0)
1683  fprintf(fout, "%*s", swidth, " ");
1684  fputs(" ", fout);
1685  }
1686  dcomplete = 1;
1687  }
1688 
1689  /* Right border */
1690  if (opt_border == 2)
1691  fputs(dformat->rightvrule, fout);
1692 
1693  fputs("\n", fout);
1694  }
1695  else
1696  {
1697  /*
1698  * data exhausted (this can occur if header is longer than the
1699  * data due to newlines in the header)
1700  */
1701  if (opt_border < 2)
1702  fputs("\n", fout);
1703  else
1704  fprintf(fout, "%*s %s\n", dwidth, "", dformat->rightvrule);
1705  }
1706  }
1707  }
1708 
1709  if (cont->opt->stop_table)
1710  {
1711  if (opt_border == 2 && !cancel_pressed)
1712  print_aligned_vertical_line(format, opt_border, 0, hwidth, dwidth,
1713  PRINT_RULE_BOTTOM, fout);
1714 
1715  /* print footers */
1716  if (!opt_tuples_only && cont->footers != NULL && !cancel_pressed)
1717  {
1718  printTableFooter *f;
1719 
1720  if (opt_border < 2)
1721  fputc('\n', fout);
1722  for (f = cont->footers; f; f = f->next)
1723  fprintf(fout, "%s\n", f->data);
1724  }
1725 
1726  fputc('\n', fout);
1727  }
1728 
1729  free(hlineptr->ptr);
1730  free(dlineptr->ptr);
1731  free(hlineptr);
1732  free(dlineptr);
1733 
1734  if (is_local_pager)
1735  ClosePager(fout);
1736 }
1737 
1738 
1739 /**********************/
1740 /* CSV format */
1741 /**********************/
1742 
1743 
1744 static void
1745 csv_escaped_print(const char *str, FILE *fout)
1746 {
1747  const char *p;
1748 
1749  fputc('"', fout);
1750  for (p = str; *p; p++)
1751  {
1752  if (*p == '"')
1753  fputc('"', fout); /* double quotes are doubled */
1754  fputc(*p, fout);
1755  }
1756  fputc('"', fout);
1757 }
1758 
1759 static void
1760 csv_print_field(const char *str, FILE *fout, char sep)
1761 {
1762  /*----------------
1763  * Enclose and escape field contents when one of these conditions is met:
1764  * - the field separator is found in the contents.
1765  * - the field contains a CR or LF.
1766  * - the field contains a double quote.
1767  * - the field is exactly "\.".
1768  * - the field separator is either "\" or ".".
1769  * The last two cases prevent producing a line that the server's COPY
1770  * command would interpret as an end-of-data marker. We only really
1771  * need to ensure that the complete line isn't exactly "\.", but for
1772  * simplicity we apply stronger restrictions here.
1773  *----------------
1774  */
1775  if (strchr(str, sep) != NULL ||
1776  strcspn(str, "\r\n\"") != strlen(str) ||
1777  strcmp(str, "\\.") == 0 ||
1778  sep == '\\' || sep == '.')
1779  csv_escaped_print(str, fout);
1780  else
1781  fputs(str, fout);
1782 }
1783 
1784 static void
1785 print_csv_text(const printTableContent *cont, FILE *fout)
1786 {
1787  const char *const *ptr;
1788  int i;
1789 
1790  if (cancel_pressed)
1791  return;
1792 
1793  /*
1794  * The title and footer are never printed in csv format. The header is
1795  * printed if opt_tuples_only is false.
1796  *
1797  * Despite RFC 4180 saying that end of lines are CRLF, terminate lines
1798  * with '\n', which prints out as the system-dependent EOL string in text
1799  * mode (typically LF on Unix and CRLF on Windows).
1800  */
1801  if (cont->opt->start_table && !cont->opt->tuples_only)
1802  {
1803  /* print headers */
1804  for (ptr = cont->headers; *ptr; ptr++)
1805  {
1806  if (ptr != cont->headers)
1807  fputc(cont->opt->csvFieldSep[0], fout);
1808  csv_print_field(*ptr, fout, cont->opt->csvFieldSep[0]);
1809  }
1810  fputc('\n', fout);
1811  }
1812 
1813  /* print cells */
1814  for (i = 0, ptr = cont->cells; *ptr; i++, ptr++)
1815  {
1816  csv_print_field(*ptr, fout, cont->opt->csvFieldSep[0]);
1817  if ((i + 1) % cont->ncolumns)
1818  fputc(cont->opt->csvFieldSep[0], fout);
1819  else
1820  fputc('\n', fout);
1821  }
1822 }
1823 
1824 static void
1825 print_csv_vertical(const printTableContent *cont, FILE *fout)
1826 {
1827  const char *const *ptr;
1828  int i;
1829 
1830  /* print records */
1831  for (i = 0, ptr = cont->cells; *ptr; i++, ptr++)
1832  {
1833  if (cancel_pressed)
1834  return;
1835 
1836  /* print name of column */
1837  csv_print_field(cont->headers[i % cont->ncolumns], fout,
1838  cont->opt->csvFieldSep[0]);
1839 
1840  /* print field separator */
1841  fputc(cont->opt->csvFieldSep[0], fout);
1842 
1843  /* print field value */
1844  csv_print_field(*ptr, fout, cont->opt->csvFieldSep[0]);
1845 
1846  fputc('\n', fout);
1847  }
1848 }
1849 
1850 
1851 /**********************/
1852 /* HTML */
1853 /**********************/
1854 
1855 
1856 void
1857 html_escaped_print(const char *in, FILE *fout)
1858 {
1859  const char *p;
1860  bool leading_space = true;
1861 
1862  for (p = in; *p; p++)
1863  {
1864  switch (*p)
1865  {
1866  case '&':
1867  fputs("&amp;", fout);
1868  break;
1869  case '<':
1870  fputs("&lt;", fout);
1871  break;
1872  case '>':
1873  fputs("&gt;", fout);
1874  break;
1875  case '\n':
1876  fputs("<br />\n", fout);
1877  break;
1878  case '"':
1879  fputs("&quot;", fout);
1880  break;
1881  case ' ':
1882  /* protect leading space, for EXPLAIN output */
1883  if (leading_space)
1884  fputs("&nbsp;", fout);
1885  else
1886  fputs(" ", fout);
1887  break;
1888  default:
1889  fputc(*p, fout);
1890  }
1891  if (*p != ' ')
1892  leading_space = false;
1893  }
1894 }
1895 
1896 
1897 static void
1898 print_html_text(const printTableContent *cont, FILE *fout)
1899 {
1900  bool opt_tuples_only = cont->opt->tuples_only;
1901  unsigned short opt_border = cont->opt->border;
1902  const char *opt_table_attr = cont->opt->tableAttr;
1903  unsigned int i;
1904  const char *const *ptr;
1905 
1906  if (cancel_pressed)
1907  return;
1908 
1909  if (cont->opt->start_table)
1910  {
1911  fprintf(fout, "<table border=\"%d\"", opt_border);
1912  if (opt_table_attr)
1913  fprintf(fout, " %s", opt_table_attr);
1914  fputs(">\n", fout);
1915 
1916  /* print title */
1917  if (!opt_tuples_only && cont->title)
1918  {
1919  fputs(" <caption>", fout);
1920  html_escaped_print(cont->title, fout);
1921  fputs("</caption>\n", fout);
1922  }
1923 
1924  /* print headers */
1925  if (!opt_tuples_only)
1926  {
1927  fputs(" <tr>\n", fout);
1928  for (ptr = cont->headers; *ptr; ptr++)
1929  {
1930  fputs(" <th align=\"center\">", fout);
1931  html_escaped_print(*ptr, fout);
1932  fputs("</th>\n", fout);
1933  }
1934  fputs(" </tr>\n", fout);
1935  }
1936  }
1937 
1938  /* print cells */
1939  for (i = 0, ptr = cont->cells; *ptr; i++, ptr++)
1940  {
1941  if (i % cont->ncolumns == 0)
1942  {
1943  if (cancel_pressed)
1944  break;
1945  fputs(" <tr valign=\"top\">\n", fout);
1946  }
1947 
1948  fprintf(fout, " <td align=\"%s\">", cont->aligns[(i) % cont->ncolumns] == 'r' ? "right" : "left");
1949  /* is string only whitespace? */
1950  if ((*ptr)[strspn(*ptr, " \t")] == '\0')
1951  fputs("&nbsp; ", fout);
1952  else
1953  html_escaped_print(*ptr, fout);
1954 
1955  fputs("</td>\n", fout);
1956 
1957  if ((i + 1) % cont->ncolumns == 0)
1958  fputs(" </tr>\n", fout);
1959  }
1960 
1961  if (cont->opt->stop_table)
1962  {
1963  printTableFooter *footers = footers_with_default(cont);
1964 
1965  fputs("</table>\n", fout);
1966 
1967  /* print footers */
1968  if (!opt_tuples_only && footers != NULL && !cancel_pressed)
1969  {
1970  printTableFooter *f;
1971 
1972  fputs("<p>", fout);
1973  for (f = footers; f; f = f->next)
1974  {
1975  html_escaped_print(f->data, fout);
1976  fputs("<br />\n", fout);
1977  }
1978  fputs("</p>", fout);
1979  }
1980 
1981  fputc('\n', fout);
1982  }
1983 }
1984 
1985 
1986 static void
1987 print_html_vertical(const printTableContent *cont, FILE *fout)
1988 {
1989  bool opt_tuples_only = cont->opt->tuples_only;
1990  unsigned short opt_border = cont->opt->border;
1991  const char *opt_table_attr = cont->opt->tableAttr;
1992  unsigned long record = cont->opt->prior_records + 1;
1993  unsigned int i;
1994  const char *const *ptr;
1995 
1996  if (cancel_pressed)
1997  return;
1998 
1999  if (cont->opt->start_table)
2000  {
2001  fprintf(fout, "<table border=\"%d\"", opt_border);
2002  if (opt_table_attr)
2003  fprintf(fout, " %s", opt_table_attr);
2004  fputs(">\n", fout);
2005 
2006  /* print title */
2007  if (!opt_tuples_only && cont->title)
2008  {
2009  fputs(" <caption>", fout);
2010  html_escaped_print(cont->title, fout);
2011  fputs("</caption>\n", fout);
2012  }
2013  }
2014 
2015  /* print records */
2016  for (i = 0, ptr = cont->cells; *ptr; i++, ptr++)
2017  {
2018  if (i % cont->ncolumns == 0)
2019  {
2020  if (cancel_pressed)
2021  break;
2022  if (!opt_tuples_only)
2023  fprintf(fout,
2024  "\n <tr><td colspan=\"2\" align=\"center\">Record %lu</td></tr>\n",
2025  record++);
2026  else
2027  fputs("\n <tr><td colspan=\"2\">&nbsp;</td></tr>\n", fout);
2028  }
2029  fputs(" <tr valign=\"top\">\n"
2030  " <th>", fout);
2031  html_escaped_print(cont->headers[i % cont->ncolumns], fout);
2032  fputs("</th>\n", fout);
2033 
2034  fprintf(fout, " <td align=\"%s\">", cont->aligns[i % cont->ncolumns] == 'r' ? "right" : "left");
2035  /* is string only whitespace? */
2036  if ((*ptr)[strspn(*ptr, " \t")] == '\0')
2037  fputs("&nbsp; ", fout);
2038  else
2039  html_escaped_print(*ptr, fout);
2040 
2041  fputs("</td>\n </tr>\n", fout);
2042  }
2043 
2044  if (cont->opt->stop_table)
2045  {
2046  fputs("</table>\n", fout);
2047 
2048  /* print footers */
2049  if (!opt_tuples_only && cont->footers != NULL && !cancel_pressed)
2050  {
2051  printTableFooter *f;
2052 
2053  fputs("<p>", fout);
2054  for (f = cont->footers; f; f = f->next)
2055  {
2056  html_escaped_print(f->data, fout);
2057  fputs("<br />\n", fout);
2058  }
2059  fputs("</p>", fout);
2060  }
2061 
2062  fputc('\n', fout);
2063  }
2064 }
2065 
2066 
2067 /*************************/
2068 /* ASCIIDOC */
2069 /*************************/
2070 
2071 
2072 static void
2073 asciidoc_escaped_print(const char *in, FILE *fout)
2074 {
2075  const char *p;
2076 
2077  for (p = in; *p; p++)
2078  {
2079  switch (*p)
2080  {
2081  case '|':
2082  fputs("\\|", fout);
2083  break;
2084  default:
2085  fputc(*p, fout);
2086  }
2087  }
2088 }
2089 
2090 static void
2091 print_asciidoc_text(const printTableContent *cont, FILE *fout)
2092 {
2093  bool opt_tuples_only = cont->opt->tuples_only;
2094  unsigned short opt_border = cont->opt->border;
2095  unsigned int i;
2096  const char *const *ptr;
2097 
2098  if (cancel_pressed)
2099  return;
2100 
2101  if (cont->opt->start_table)
2102  {
2103  /* print table in new paragraph - enforce preliminary new line */
2104  fputs("\n", fout);
2105 
2106  /* print title */
2107  if (!opt_tuples_only && cont->title)
2108  {
2109  fputs(".", fout);
2110  fputs(cont->title, fout);
2111  fputs("\n", fout);
2112  }
2113 
2114  /* print table [] header definition */
2115  fprintf(fout, "[%scols=\"", !opt_tuples_only ? "options=\"header\"," : "");
2116  for (i = 0; i < cont->ncolumns; i++)
2117  {
2118  if (i != 0)
2119  fputs(",", fout);
2120  fprintf(fout, "%s", cont->aligns[(i) % cont->ncolumns] == 'r' ? ">l" : "<l");
2121  }
2122  fputs("\"", fout);
2123  switch (opt_border)
2124  {
2125  case 0:
2126  fputs(",frame=\"none\",grid=\"none\"", fout);
2127  break;
2128  case 1:
2129  fputs(",frame=\"none\"", fout);
2130  break;
2131  case 2:
2132  fputs(",frame=\"all\",grid=\"all\"", fout);
2133  break;
2134  }
2135  fputs("]\n", fout);
2136  fputs("|====\n", fout);
2137 
2138  /* print headers */
2139  if (!opt_tuples_only)
2140  {
2141  for (ptr = cont->headers; *ptr; ptr++)
2142  {
2143  if (ptr != cont->headers)
2144  fputs(" ", fout);
2145  fputs("^l|", fout);
2146  asciidoc_escaped_print(*ptr, fout);
2147  }
2148  fputs("\n", fout);
2149  }
2150  }
2151 
2152  /* print cells */
2153  for (i = 0, ptr = cont->cells; *ptr; i++, ptr++)
2154  {
2155  if (i % cont->ncolumns == 0)
2156  {
2157  if (cancel_pressed)
2158  break;
2159  }
2160 
2161  if (i % cont->ncolumns != 0)
2162  fputs(" ", fout);
2163  fputs("|", fout);
2164 
2165  /* protect against needless spaces */
2166  if ((*ptr)[strspn(*ptr, " \t")] == '\0')
2167  {
2168  if ((i + 1) % cont->ncolumns != 0)
2169  fputs(" ", fout);
2170  }
2171  else
2172  asciidoc_escaped_print(*ptr, fout);
2173 
2174  if ((i + 1) % cont->ncolumns == 0)
2175  fputs("\n", fout);
2176  }
2177 
2178  fputs("|====\n", fout);
2179 
2180  if (cont->opt->stop_table)
2181  {
2182  printTableFooter *footers = footers_with_default(cont);
2183 
2184  /* print footers */
2185  if (!opt_tuples_only && footers != NULL && !cancel_pressed)
2186  {
2187  printTableFooter *f;
2188 
2189  fputs("\n....\n", fout);
2190  for (f = footers; f; f = f->next)
2191  {
2192  fputs(f->data, fout);
2193  fputs("\n", fout);
2194  }
2195  fputs("....\n", fout);
2196  }
2197  }
2198 }
2199 
2200 static void
2202 {
2203  bool opt_tuples_only = cont->opt->tuples_only;
2204  unsigned short opt_border = cont->opt->border;
2205  unsigned long record = cont->opt->prior_records + 1;
2206  unsigned int i;
2207  const char *const *ptr;
2208 
2209  if (cancel_pressed)
2210  return;
2211 
2212  if (cont->opt->start_table)
2213  {
2214  /* print table in new paragraph - enforce preliminary new line */
2215  fputs("\n", fout);
2216 
2217  /* print title */
2218  if (!opt_tuples_only && cont->title)
2219  {
2220  fputs(".", fout);
2221  fputs(cont->title, fout);
2222  fputs("\n", fout);
2223  }
2224 
2225  /* print table [] header definition */
2226  fputs("[cols=\"h,l\"", fout);
2227  switch (opt_border)
2228  {
2229  case 0:
2230  fputs(",frame=\"none\",grid=\"none\"", fout);
2231  break;
2232  case 1:
2233  fputs(",frame=\"none\"", fout);
2234  break;
2235  case 2:
2236  fputs(",frame=\"all\",grid=\"all\"", fout);
2237  break;
2238  }
2239  fputs("]\n", fout);
2240  fputs("|====\n", fout);
2241  }
2242 
2243  /* print records */
2244  for (i = 0, ptr = cont->cells; *ptr; i++, ptr++)
2245  {
2246  if (i % cont->ncolumns == 0)
2247  {
2248  if (cancel_pressed)
2249  break;
2250  if (!opt_tuples_only)
2251  fprintf(fout,
2252  "2+^|Record %lu\n",
2253  record++);
2254  else
2255  fputs("2+|\n", fout);
2256  }
2257 
2258  fputs("<l|", fout);
2259  asciidoc_escaped_print(cont->headers[i % cont->ncolumns], fout);
2260 
2261  fprintf(fout, " %s|", cont->aligns[i % cont->ncolumns] == 'r' ? ">l" : "<l");
2262  /* is string only whitespace? */
2263  if ((*ptr)[strspn(*ptr, " \t")] == '\0')
2264  fputs(" ", fout);
2265  else
2266  asciidoc_escaped_print(*ptr, fout);
2267  fputs("\n", fout);
2268  }
2269 
2270  fputs("|====\n", fout);
2271 
2272  if (cont->opt->stop_table)
2273  {
2274  /* print footers */
2275  if (!opt_tuples_only && cont->footers != NULL && !cancel_pressed)
2276  {
2277  printTableFooter *f;
2278 
2279  fputs("\n....\n", fout);
2280  for (f = cont->footers; f; f = f->next)
2281  {
2282  fputs(f->data, fout);
2283  fputs("\n", fout);
2284  }
2285  fputs("....\n", fout);
2286  }
2287  }
2288 }
2289 
2290 
2291 /*************************/
2292 /* LaTeX */
2293 /*************************/
2294 
2295 
2296 static void
2297 latex_escaped_print(const char *in, FILE *fout)
2298 {
2299  const char *p;
2300 
2301  for (p = in; *p; p++)
2302  switch (*p)
2303  {
2304  /*
2305  * We convert ASCII characters per the recommendations in
2306  * Scott Pakin's "The Comprehensive LATEX Symbol List",
2307  * available from CTAN. For non-ASCII, you're on your own.
2308  */
2309  case '#':
2310  fputs("\\#", fout);
2311  break;
2312  case '$':
2313  fputs("\\$", fout);
2314  break;
2315  case '%':
2316  fputs("\\%", fout);
2317  break;
2318  case '&':
2319  fputs("\\&", fout);
2320  break;
2321  case '<':
2322  fputs("\\textless{}", fout);
2323  break;
2324  case '>':
2325  fputs("\\textgreater{}", fout);
2326  break;
2327  case '\\':
2328  fputs("\\textbackslash{}", fout);
2329  break;
2330  case '^':
2331  fputs("\\^{}", fout);
2332  break;
2333  case '_':
2334  fputs("\\_", fout);
2335  break;
2336  case '{':
2337  fputs("\\{", fout);
2338  break;
2339  case '|':
2340  fputs("\\textbar{}", fout);
2341  break;
2342  case '}':
2343  fputs("\\}", fout);
2344  break;
2345  case '~':
2346  fputs("\\~{}", fout);
2347  break;
2348  case '\n':
2349  /* This is not right, but doing it right seems too hard */
2350  fputs("\\\\", fout);
2351  break;
2352  default:
2353  fputc(*p, fout);
2354  }
2355 }
2356 
2357 
2358 static void
2359 print_latex_text(const printTableContent *cont, FILE *fout)
2360 {
2361  bool opt_tuples_only = cont->opt->tuples_only;
2362  unsigned short opt_border = cont->opt->border;
2363  unsigned int i;
2364  const char *const *ptr;
2365 
2366  if (cancel_pressed)
2367  return;
2368 
2369  if (opt_border > 3)
2370  opt_border = 3;
2371 
2372  if (cont->opt->start_table)
2373  {
2374  /* print title */
2375  if (!opt_tuples_only && cont->title)
2376  {
2377  fputs("\\begin{center}\n", fout);
2378  latex_escaped_print(cont->title, fout);
2379  fputs("\n\\end{center}\n\n", fout);
2380  }
2381 
2382  /* begin environment and set alignments and borders */
2383  fputs("\\begin{tabular}{", fout);
2384 
2385  if (opt_border >= 2)
2386  fputs("| ", fout);
2387  for (i = 0; i < cont->ncolumns; i++)
2388  {
2389  fputc(*(cont->aligns + i), fout);
2390  if (opt_border != 0 && i < cont->ncolumns - 1)
2391  fputs(" | ", fout);
2392  }
2393  if (opt_border >= 2)
2394  fputs(" |", fout);
2395 
2396  fputs("}\n", fout);
2397 
2398  if (!opt_tuples_only && opt_border >= 2)
2399  fputs("\\hline\n", fout);
2400 
2401  /* print headers */
2402  if (!opt_tuples_only)
2403  {
2404  for (i = 0, ptr = cont->headers; i < cont->ncolumns; i++, ptr++)
2405  {
2406  if (i != 0)
2407  fputs(" & ", fout);
2408  fputs("\\textit{", fout);
2409  latex_escaped_print(*ptr, fout);
2410  fputc('}', fout);
2411  }
2412  fputs(" \\\\\n", fout);
2413  fputs("\\hline\n", fout);
2414  }
2415  }
2416 
2417  /* print cells */
2418  for (i = 0, ptr = cont->cells; *ptr; i++, ptr++)
2419  {
2420  latex_escaped_print(*ptr, fout);
2421 
2422  if ((i + 1) % cont->ncolumns == 0)
2423  {
2424  fputs(" \\\\\n", fout);
2425  if (opt_border == 3)
2426  fputs("\\hline\n", fout);
2427  if (cancel_pressed)
2428  break;
2429  }
2430  else
2431  fputs(" & ", fout);
2432  }
2433 
2434  if (cont->opt->stop_table)
2435  {
2436  printTableFooter *footers = footers_with_default(cont);
2437 
2438  if (opt_border == 2)
2439  fputs("\\hline\n", fout);
2440 
2441  fputs("\\end{tabular}\n\n\\noindent ", fout);
2442 
2443  /* print footers */
2444  if (footers && !opt_tuples_only && !cancel_pressed)
2445  {
2446  printTableFooter *f;
2447 
2448  for (f = footers; f; f = f->next)
2449  {
2450  latex_escaped_print(f->data, fout);
2451  fputs(" \\\\\n", fout);
2452  }
2453  }
2454 
2455  fputc('\n', fout);
2456  }
2457 }
2458 
2459 
2460 /*************************/
2461 /* LaTeX longtable */
2462 /*************************/
2463 
2464 
2465 static void
2467 {
2468  bool opt_tuples_only = cont->opt->tuples_only;
2469  unsigned short opt_border = cont->opt->border;
2470  unsigned int i;
2471  const char *opt_table_attr = cont->opt->tableAttr;
2472  const char *next_opt_table_attr_char = opt_table_attr;
2473  const char *last_opt_table_attr_char = NULL;
2474  const char *const *ptr;
2475 
2476  if (cancel_pressed)
2477  return;
2478 
2479  if (opt_border > 3)
2480  opt_border = 3;
2481 
2482  if (cont->opt->start_table)
2483  {
2484  /* begin environment and set alignments and borders */
2485  fputs("\\begin{longtable}{", fout);
2486 
2487  if (opt_border >= 2)
2488  fputs("| ", fout);
2489 
2490  for (i = 0; i < cont->ncolumns; i++)
2491  {
2492  /* longtable supports either a width (p) or an alignment (l/r) */
2493  /* Are we left-justified and was a proportional width specified? */
2494  if (*(cont->aligns + i) == 'l' && opt_table_attr)
2495  {
2496 #define LONGTABLE_WHITESPACE " \t\n"
2497 
2498  /* advance over whitespace */
2499  next_opt_table_attr_char += strspn(next_opt_table_attr_char,
2501  /* We have a value? */
2502  if (next_opt_table_attr_char[0] != '\0')
2503  {
2504  fputs("p{", fout);
2505  fwrite(next_opt_table_attr_char, strcspn(next_opt_table_attr_char,
2506  LONGTABLE_WHITESPACE), 1, fout);
2507  last_opt_table_attr_char = next_opt_table_attr_char;
2508  next_opt_table_attr_char += strcspn(next_opt_table_attr_char,
2510  fputs("\\textwidth}", fout);
2511  }
2512  /* use previous value */
2513  else if (last_opt_table_attr_char != NULL)
2514  {
2515  fputs("p{", fout);
2516  fwrite(last_opt_table_attr_char, strcspn(last_opt_table_attr_char,
2517  LONGTABLE_WHITESPACE), 1, fout);
2518  fputs("\\textwidth}", fout);
2519  }
2520  else
2521  fputc('l', fout);
2522  }
2523  else
2524  fputc(*(cont->aligns + i), fout);
2525 
2526  if (opt_border != 0 && i < cont->ncolumns - 1)
2527  fputs(" | ", fout);
2528  }
2529 
2530  if (opt_border >= 2)
2531  fputs(" |", fout);
2532 
2533  fputs("}\n", fout);
2534 
2535  /* print headers */
2536  if (!opt_tuples_only)
2537  {
2538  /* firsthead */
2539  if (opt_border >= 2)
2540  fputs("\\toprule\n", fout);
2541  for (i = 0, ptr = cont->headers; i < cont->ncolumns; i++, ptr++)
2542  {
2543  if (i != 0)
2544  fputs(" & ", fout);
2545  fputs("\\small\\textbf{\\textit{", fout);
2546  latex_escaped_print(*ptr, fout);
2547  fputs("}}", fout);
2548  }
2549  fputs(" \\\\\n", fout);
2550  fputs("\\midrule\n\\endfirsthead\n", fout);
2551 
2552  /* secondary heads */
2553  if (opt_border >= 2)
2554  fputs("\\toprule\n", fout);
2555  for (i = 0, ptr = cont->headers; i < cont->ncolumns; i++, ptr++)
2556  {
2557  if (i != 0)
2558  fputs(" & ", fout);
2559  fputs("\\small\\textbf{\\textit{", fout);
2560  latex_escaped_print(*ptr, fout);
2561  fputs("}}", fout);
2562  }
2563  fputs(" \\\\\n", fout);
2564  /* If the line under the row already appeared, don't do another */
2565  if (opt_border != 3)
2566  fputs("\\midrule\n", fout);
2567  fputs("\\endhead\n", fout);
2568 
2569  /* table name, caption? */
2570  if (!opt_tuples_only && cont->title)
2571  {
2572  /* Don't output if we are printing a line under each row */
2573  if (opt_border == 2)
2574  fputs("\\bottomrule\n", fout);
2575  fputs("\\caption[", fout);
2576  latex_escaped_print(cont->title, fout);
2577  fputs(" (Continued)]{", fout);
2578  latex_escaped_print(cont->title, fout);
2579  fputs("}\n\\endfoot\n", fout);
2580  if (opt_border == 2)
2581  fputs("\\bottomrule\n", fout);
2582  fputs("\\caption[", fout);
2583  latex_escaped_print(cont->title, fout);
2584  fputs("]{", fout);
2585  latex_escaped_print(cont->title, fout);
2586  fputs("}\n\\endlastfoot\n", fout);
2587  }
2588  /* output bottom table line? */
2589  else if (opt_border >= 2)
2590  {
2591  fputs("\\bottomrule\n\\endfoot\n", fout);
2592  fputs("\\bottomrule\n\\endlastfoot\n", fout);
2593  }
2594  }
2595  }
2596 
2597  /* print cells */
2598  for (i = 0, ptr = cont->cells; *ptr; i++, ptr++)
2599  {
2600  /* Add a line under each row? */
2601  if (i != 0 && i % cont->ncolumns != 0)
2602  fputs("\n&\n", fout);
2603  fputs("\\raggedright{", fout);
2604  latex_escaped_print(*ptr, fout);
2605  fputc('}', fout);
2606  if ((i + 1) % cont->ncolumns == 0)
2607  {
2608  fputs(" \\tabularnewline\n", fout);
2609  if (opt_border == 3)
2610  fputs(" \\hline\n", fout);
2611  }
2612  if (cancel_pressed)
2613  break;
2614  }
2615 
2616  if (cont->opt->stop_table)
2617  fputs("\\end{longtable}\n", fout);
2618 }
2619 
2620 
2621 static void
2622 print_latex_vertical(const printTableContent *cont, FILE *fout)
2623 {
2624  bool opt_tuples_only = cont->opt->tuples_only;
2625  unsigned short opt_border = cont->opt->border;
2626  unsigned long record = cont->opt->prior_records + 1;
2627  unsigned int i;
2628  const char *const *ptr;
2629 
2630  if (cancel_pressed)
2631  return;
2632 
2633  if (opt_border > 2)
2634  opt_border = 2;
2635 
2636  if (cont->opt->start_table)
2637  {
2638  /* print title */
2639  if (!opt_tuples_only && cont->title)
2640  {
2641  fputs("\\begin{center}\n", fout);
2642  latex_escaped_print(cont->title, fout);
2643  fputs("\n\\end{center}\n\n", fout);
2644  }
2645 
2646  /* begin environment and set alignments and borders */
2647  fputs("\\begin{tabular}{", fout);
2648  if (opt_border == 0)
2649  fputs("cl", fout);
2650  else if (opt_border == 1)
2651  fputs("c|l", fout);
2652  else if (opt_border == 2)
2653  fputs("|c|l|", fout);
2654  fputs("}\n", fout);
2655  }
2656 
2657  /* print records */
2658  for (i = 0, ptr = cont->cells; *ptr; i++, ptr++)
2659  {
2660  /* new record */
2661  if (i % cont->ncolumns == 0)
2662  {
2663  if (cancel_pressed)
2664  break;
2665  if (!opt_tuples_only)
2666  {
2667  if (opt_border == 2)
2668  {
2669  fputs("\\hline\n", fout);
2670  fprintf(fout, "\\multicolumn{2}{|c|}{\\textit{Record %lu}} \\\\\n", record++);
2671  }
2672  else
2673  fprintf(fout, "\\multicolumn{2}{c}{\\textit{Record %lu}} \\\\\n", record++);
2674  }
2675  if (opt_border >= 1)
2676  fputs("\\hline\n", fout);
2677  }
2678 
2679  latex_escaped_print(cont->headers[i % cont->ncolumns], fout);
2680  fputs(" & ", fout);
2681  latex_escaped_print(*ptr, fout);
2682  fputs(" \\\\\n", fout);
2683  }
2684 
2685  if (cont->opt->stop_table)
2686  {
2687  if (opt_border == 2)
2688  fputs("\\hline\n", fout);
2689 
2690  fputs("\\end{tabular}\n\n\\noindent ", fout);
2691 
2692  /* print footers */
2693  if (cont->footers && !opt_tuples_only && !cancel_pressed)
2694  {
2695  printTableFooter *f;
2696 
2697  for (f = cont->footers; f; f = f->next)
2698  {
2699  latex_escaped_print(f->data, fout);
2700  fputs(" \\\\\n", fout);
2701  }
2702  }
2703 
2704  fputc('\n', fout);
2705  }
2706 }
2707 
2708 
2709 /*************************/
2710 /* Troff -ms */
2711 /*************************/
2712 
2713 
2714 static void
2715 troff_ms_escaped_print(const char *in, FILE *fout)
2716 {
2717  const char *p;
2718 
2719  for (p = in; *p; p++)
2720  switch (*p)
2721  {
2722  case '\\':
2723  fputs("\\(rs", fout);
2724  break;
2725  default:
2726  fputc(*p, fout);
2727  }
2728 }
2729 
2730 
2731 static void
2732 print_troff_ms_text(const printTableContent *cont, FILE *fout)
2733 {
2734  bool opt_tuples_only = cont->opt->tuples_only;
2735  unsigned short opt_border = cont->opt->border;
2736  unsigned int i;
2737  const char *const *ptr;
2738 
2739  if (cancel_pressed)
2740  return;
2741 
2742  if (opt_border > 2)
2743  opt_border = 2;
2744 
2745  if (cont->opt->start_table)
2746  {
2747  /* print title */
2748  if (!opt_tuples_only && cont->title)
2749  {
2750  fputs(".LP\n.DS C\n", fout);
2751  troff_ms_escaped_print(cont->title, fout);
2752  fputs("\n.DE\n", fout);
2753  }
2754 
2755  /* begin environment and set alignments and borders */
2756  fputs(".LP\n.TS\n", fout);
2757  if (opt_border == 2)
2758  fputs("center box;\n", fout);
2759  else
2760  fputs("center;\n", fout);
2761 
2762  for (i = 0; i < cont->ncolumns; i++)
2763  {
2764  fputc(*(cont->aligns + i), fout);
2765  if (opt_border > 0 && i < cont->ncolumns - 1)
2766  fputs(" | ", fout);
2767  }
2768  fputs(".\n", fout);
2769 
2770  /* print headers */
2771  if (!opt_tuples_only)
2772  {
2773  for (i = 0, ptr = cont->headers; i < cont->ncolumns; i++, ptr++)
2774  {
2775  if (i != 0)
2776  fputc('\t', fout);
2777  fputs("\\fI", fout);
2778  troff_ms_escaped_print(*ptr, fout);
2779  fputs("\\fP", fout);
2780  }
2781  fputs("\n_\n", fout);
2782  }
2783  }
2784 
2785  /* print cells */
2786  for (i = 0, ptr = cont->cells; *ptr; i++, ptr++)
2787  {
2788  troff_ms_escaped_print(*ptr, fout);
2789 
2790  if ((i + 1) % cont->ncolumns == 0)
2791  {
2792  fputc('\n', fout);
2793  if (cancel_pressed)
2794  break;
2795  }
2796  else
2797  fputc('\t', fout);
2798  }
2799 
2800  if (cont->opt->stop_table)
2801  {
2802  printTableFooter *footers = footers_with_default(cont);
2803 
2804  fputs(".TE\n.DS L\n", fout);
2805 
2806  /* print footers */
2807  if (footers && !opt_tuples_only && !cancel_pressed)
2808  {
2809  printTableFooter *f;
2810 
2811  for (f = footers; f; f = f->next)
2812  {
2813  troff_ms_escaped_print(f->data, fout);
2814  fputc('\n', fout);
2815  }
2816  }
2817 
2818  fputs(".DE\n", fout);
2819  }
2820 }
2821 
2822 
2823 static void
2825 {
2826  bool opt_tuples_only = cont->opt->tuples_only;
2827  unsigned short opt_border = cont->opt->border;
2828  unsigned long record = cont->opt->prior_records + 1;
2829  unsigned int i;
2830  const char *const *ptr;
2831  unsigned short current_format = 0; /* 0=none, 1=header, 2=body */
2832 
2833  if (cancel_pressed)
2834  return;
2835 
2836  if (opt_border > 2)
2837  opt_border = 2;
2838 
2839  if (cont->opt->start_table)
2840  {
2841  /* print title */
2842  if (!opt_tuples_only && cont->title)
2843  {
2844  fputs(".LP\n.DS C\n", fout);
2845  troff_ms_escaped_print(cont->title, fout);
2846  fputs("\n.DE\n", fout);
2847  }
2848 
2849  /* begin environment and set alignments and borders */
2850  fputs(".LP\n.TS\n", fout);
2851  if (opt_border == 2)
2852  fputs("center box;\n", fout);
2853  else
2854  fputs("center;\n", fout);
2855 
2856  /* basic format */
2857  if (opt_tuples_only)
2858  fputs("c l;\n", fout);
2859  }
2860  else
2861  current_format = 2; /* assume tuples printed already */
2862 
2863  /* print records */
2864  for (i = 0, ptr = cont->cells; *ptr; i++, ptr++)
2865  {
2866  /* new record */
2867  if (i % cont->ncolumns == 0)
2868  {
2869  if (cancel_pressed)
2870  break;
2871  if (!opt_tuples_only)
2872  {
2873  if (current_format != 1)
2874  {
2875  if (opt_border == 2 && record > 1)
2876  fputs("_\n", fout);
2877  if (current_format != 0)
2878  fputs(".T&\n", fout);
2879  fputs("c s.\n", fout);
2880  current_format = 1;
2881  }
2882  fprintf(fout, "\\fIRecord %lu\\fP\n", record++);
2883  }
2884  if (opt_border >= 1)
2885  fputs("_\n", fout);
2886  }
2887 
2888  if (!opt_tuples_only)
2889  {
2890  if (current_format != 2)
2891  {
2892  if (current_format != 0)
2893  fputs(".T&\n", fout);
2894  if (opt_border != 1)
2895  fputs("c l.\n", fout);
2896  else
2897  fputs("c | l.\n", fout);
2898  current_format = 2;
2899  }
2900  }
2901 
2902  troff_ms_escaped_print(cont->headers[i % cont->ncolumns], fout);
2903  fputc('\t', fout);
2904  troff_ms_escaped_print(*ptr, fout);
2905 
2906  fputc('\n', fout);
2907  }
2908 
2909  if (cont->opt->stop_table)
2910  {
2911  fputs(".TE\n.DS L\n", fout);
2912 
2913  /* print footers */
2914  if (cont->footers && !opt_tuples_only && !cancel_pressed)
2915  {
2916  printTableFooter *f;
2917 
2918  for (f = cont->footers; f; f = f->next)
2919  {
2920  troff_ms_escaped_print(f->data, fout);
2921  fputc('\n', fout);
2922  }
2923  }
2924 
2925  fputs(".DE\n", fout);
2926  }
2927 }
2928 
2929 
2930 /********************************/
2931 /* Public functions */
2932 /********************************/
2933 
2934 
2935 /*
2936  * disable_sigpipe_trap
2937  *
2938  * Turn off SIGPIPE interrupt --- call this before writing to a temporary
2939  * query output file that is a pipe.
2940  *
2941  * No-op on Windows, where there's no SIGPIPE interrupts.
2942  */
2943 void
2945 {
2946 #ifndef WIN32
2948 #endif
2949 }
2950 
2951 /*
2952  * restore_sigpipe_trap
2953  *
2954  * Restore normal SIGPIPE interrupt --- call this when done writing to a
2955  * temporary query output file that was (or might have been) a pipe.
2956  *
2957  * Note: within psql, we enable SIGPIPE interrupts unless the permanent query
2958  * output file is a pipe, in which case they should be kept off. This
2959  * approach works only because psql is not currently complicated enough to
2960  * have nested usages of short-lived output files. Otherwise we'd probably
2961  * need a genuine save-and-restore-state approach; but for now, that would be
2962  * useless complication. In non-psql programs, this always enables SIGPIPE.
2963  *
2964  * No-op on Windows, where there's no SIGPIPE interrupts.
2965  */
2966 void
2968 {
2969 #ifndef WIN32
2971 #endif
2972 }
2973 
2974 /*
2975  * set_sigpipe_trap_state
2976  *
2977  * Set the trap state that restore_sigpipe_trap should restore to.
2978  */
2979 void
2981 {
2982  always_ignore_sigpipe = ignore;
2983 }
2984 
2985 
2986 /*
2987  * PageOutput
2988  *
2989  * Tests if pager is needed and returns appropriate FILE pointer.
2990  *
2991  * If the topt argument is NULL no pager is used.
2992  */
2993 FILE *
2994 PageOutput(int lines, const printTableOpt *topt)
2995 {
2996  /* check whether we need / can / are supposed to use pager */
2997  if (topt && topt->pager && isatty(fileno(stdin)) && isatty(fileno(stdout)))
2998  {
2999 #ifdef TIOCGWINSZ
3000  unsigned short int pager = topt->pager;
3001  int min_lines = topt->pager_min_lines;
3002  int result;
3003  struct winsize screen_size;
3004 
3005  result = ioctl(fileno(stdout), TIOCGWINSZ, &screen_size);
3006 
3007  /* >= accounts for a one-line prompt */
3008  if (result == -1
3009  || (lines >= screen_size.ws_row && lines >= min_lines)
3010  || pager > 1)
3011 #endif
3012  {
3013  const char *pagerprog;
3014  FILE *pagerpipe;
3015 
3016  pagerprog = getenv("PSQL_PAGER");
3017  if (!pagerprog)
3018  pagerprog = getenv("PAGER");
3019  if (!pagerprog)
3020  pagerprog = DEFAULT_PAGER;
3021  else
3022  {
3023  /* if PAGER is empty or all-white-space, don't use pager */
3024  if (strspn(pagerprog, " \t\r\n") == strlen(pagerprog))
3025  return stdout;
3026  }
3028  pagerpipe = popen(pagerprog, "w");
3029  if (pagerpipe)
3030  return pagerpipe;
3031  /* if popen fails, silently proceed without pager */
3033  }
3034  }
3035 
3036  return stdout;
3037 }
3038 
3039 /*
3040  * ClosePager
3041  *
3042  * Close previously opened pager pipe, if any
3043  */
3044 void
3045 ClosePager(FILE *pagerpipe)
3046 {
3047  if (pagerpipe && pagerpipe != stdout)
3048  {
3049  /*
3050  * If printing was canceled midstream, warn about it.
3051  *
3052  * Some pagers like less use Ctrl-C as part of their command set. Even
3053  * so, we abort our processing and warn the user what we did. If the
3054  * pager quit as a result of the SIGINT, this message won't go
3055  * anywhere ...
3056  */
3057  if (cancel_pressed)
3058  fprintf(pagerpipe, _("Interrupted\n"));
3059 
3060  pclose(pagerpipe);
3062  }
3063 }
3064 
3065 /*
3066  * Initialise a table contents struct.
3067  * Must be called before any other printTable method is used.
3068  *
3069  * The title is not duplicated; the caller must ensure that the buffer
3070  * is available for the lifetime of the printTableContent struct.
3071  *
3072  * If you call this, you must call printTableCleanup once you're done with the
3073  * table.
3074  */
3075 void
3077  const char *title, const int ncolumns, const int nrows)
3078 {
3079  content->opt = opt;
3080  content->title = title;
3081  content->ncolumns = ncolumns;
3082  content->nrows = nrows;
3083 
3084  content->headers = pg_malloc0((ncolumns + 1) * sizeof(*content->headers));
3085 
3086  content->cells = pg_malloc0((ncolumns * nrows + 1) * sizeof(*content->cells));
3087 
3088  content->cellmustfree = NULL;
3089  content->footers = NULL;
3090 
3091  content->aligns = pg_malloc0((ncolumns + 1) * sizeof(*content->align));
3092 
3093  content->header = content->headers;
3094  content->cell = content->cells;
3095  content->footer = content->footers;
3096  content->align = content->aligns;
3097  content->cellsadded = 0;
3098 }
3099 
3100 /*
3101  * Add a header to the table.
3102  *
3103  * Headers are not duplicated; you must ensure that the header string is
3104  * available for the lifetime of the printTableContent struct.
3105  *
3106  * If translate is true, the function will pass the header through gettext.
3107  * Otherwise, the header will not be translated.
3108  *
3109  * align is either 'l' or 'r', and specifies the alignment for cells in this
3110  * column.
3111  */
3112 void
3114  const bool translate, const char align)
3115 {
3116 #ifndef ENABLE_NLS
3117  (void) translate; /* unused parameter */
3118 #endif
3119 
3120  if (content->header >= content->headers + content->ncolumns)
3121  {
3122  fprintf(stderr, _("Cannot add header to table content: "
3123  "column count of %d exceeded.\n"),
3124  content->ncolumns);
3125  exit(EXIT_FAILURE);
3126  }
3127 
3128  *content->header = (char *) mbvalidate((unsigned char *) header,
3129  content->opt->encoding);
3130 #ifdef ENABLE_NLS
3131  if (translate)
3132  *content->header = _(*content->header);
3133 #endif
3134  content->header++;
3135 
3136  *content->align = align;
3137  content->align++;
3138 }
3139 
3140 /*
3141  * Add a cell to the table.
3142  *
3143  * Cells are not duplicated; you must ensure that the cell string is available
3144  * for the lifetime of the printTableContent struct.
3145  *
3146  * If translate is true, the function will pass the cell through gettext.
3147  * Otherwise, the cell will not be translated.
3148  *
3149  * If mustfree is true, the cell string is freed by printTableCleanup().
3150  * Note: Automatic freeing of translatable strings is not supported.
3151  */
3152 void
3153 printTableAddCell(printTableContent *const content, char *cell,
3154  const bool translate, const bool mustfree)
3155 {
3156 #ifndef ENABLE_NLS
3157  (void) translate; /* unused parameter */
3158 #endif
3159 
3160  if (content->cellsadded >= content->ncolumns * content->nrows)
3161  {
3162  fprintf(stderr, _("Cannot add cell to table content: "
3163  "total cell count of %d exceeded.\n"),
3164  content->ncolumns * content->nrows);
3165  exit(EXIT_FAILURE);
3166  }
3167 
3168  *content->cell = (char *) mbvalidate((unsigned char *) cell,
3169  content->opt->encoding);
3170 
3171 #ifdef ENABLE_NLS
3172  if (translate)
3173  *content->cell = _(*content->cell);
3174 #endif
3175 
3176  if (mustfree)
3177  {
3178  if (content->cellmustfree == NULL)
3179  content->cellmustfree =
3180  pg_malloc0((content->ncolumns * content->nrows + 1) * sizeof(bool));
3181 
3182  content->cellmustfree[content->cellsadded] = true;
3183  }
3184  content->cell++;
3185  content->cellsadded++;
3186 }
3187 
3188 /*
3189  * Add a footer to the table.
3190  *
3191  * Footers are added as elements of a singly-linked list, and the content is
3192  * strdup'd, so there is no need to keep the original footer string around.
3193  *
3194  * Footers are never translated by the function. If you want the footer
3195  * translated you must do so yourself, before calling printTableAddFooter. The
3196  * reason this works differently to headers and cells is that footers tend to
3197  * be made of up individually translated components, rather than being
3198  * translated as a whole.
3199  */
3200 void
3201 printTableAddFooter(printTableContent *const content, const char *footer)
3202 {
3203  printTableFooter *f;
3204 
3205  f = pg_malloc0(sizeof(*f));
3206  f->data = pg_strdup(footer);
3207 
3208  if (content->footers == NULL)
3209  content->footers = f;
3210  else
3211  content->footer->next = f;
3212 
3213  content->footer = f;
3214 }
3215 
3216 /*
3217  * Change the content of the last-added footer.
3218  *
3219  * The current contents of the last-added footer are freed, and replaced by the
3220  * content given in *footer. If there was no previous footer, add a new one.
3221  *
3222  * The content is strdup'd, so there is no need to keep the original string
3223  * around.
3224  */
3225 void
3226 printTableSetFooter(printTableContent *const content, const char *footer)
3227 {
3228  if (content->footers != NULL)
3229  {
3230  free(content->footer->data);
3231  content->footer->data = pg_strdup(footer);
3232  }
3233  else
3234  printTableAddFooter(content, footer);
3235 }
3236 
3237 /*
3238  * Free all memory allocated to this struct.
3239  *
3240  * Once this has been called, the struct is unusable unless you pass it to
3241  * printTableInit() again.
3242  */
3243 void
3245 {
3246  if (content->cellmustfree)
3247  {
3248  int i;
3249 
3250  for (i = 0; i < content->nrows * content->ncolumns; i++)
3251  {
3252  if (content->cellmustfree[i])
3253  free(unconstify(char *, content->cells[i]));
3254  }
3255  free(content->cellmustfree);
3256  content->cellmustfree = NULL;
3257  }
3258  free(content->headers);
3259  free(content->cells);
3260  free(content->aligns);
3261 
3262  content->opt = NULL;
3263  content->title = NULL;
3264  content->headers = NULL;
3265  content->cells = NULL;
3266  content->aligns = NULL;
3267  content->header = NULL;
3268  content->cell = NULL;
3269  content->align = NULL;
3270 
3271  if (content->footers)
3272  {
3273  for (content->footer = content->footers; content->footer;)
3274  {
3275  printTableFooter *f;
3276 
3277  f = content->footer;
3278  content->footer = f->next;
3279  free(f->data);
3280  free(f);
3281  }
3282  }
3283  content->footers = NULL;
3284  content->footer = NULL;
3285 }
3286 
3287 /*
3288  * IsPagerNeeded
3289  *
3290  * Setup pager if required
3291  */
3292 static void
3293 IsPagerNeeded(const printTableContent *cont, int extra_lines, bool expanded,
3294  FILE **fout, bool *is_pager)
3295 {
3296  if (*fout == stdout)
3297  {
3298  int lines;
3299 
3300  if (expanded)
3301  lines = (cont->ncolumns + 1) * cont->nrows;
3302  else
3303  lines = cont->nrows + 1;
3304 
3305  if (!cont->opt->tuples_only)
3306  {
3307  printTableFooter *f;
3308 
3309  /*
3310  * FIXME -- this is slightly bogus: it counts the number of
3311  * footers, not the number of lines in them.
3312  */
3313  for (f = cont->footers; f; f = f->next)
3314  lines++;
3315  }
3316 
3317  *fout = PageOutput(lines + extra_lines, cont->opt);
3318  *is_pager = (*fout != stdout);
3319  }
3320  else
3321  *is_pager = false;
3322 }
3323 
3324 /*
3325  * Use this to print any table in the supported formats.
3326  *
3327  * cont: table data and formatting options
3328  * fout: where to print to
3329  * is_pager: true if caller has already redirected fout to be a pager pipe
3330  * flog: if not null, also print the table there (for --log-file option)
3331  */
3332 void
3334  FILE *fout, bool is_pager, FILE *flog)
3335 {
3336  bool is_local_pager = false;
3337 
3338  if (cancel_pressed)
3339  return;
3340 
3341  if (cont->opt->format == PRINT_NOTHING)
3342  return;
3343 
3344  /* print_aligned_*() handle the pager themselves */
3345  if (!is_pager &&
3346  cont->opt->format != PRINT_ALIGNED &&
3347  cont->opt->format != PRINT_WRAPPED)
3348  {
3349  IsPagerNeeded(cont, 0, (cont->opt->expanded == 1), &fout, &is_pager);
3350  is_local_pager = is_pager;
3351  }
3352 
3353  /* print the stuff */
3354 
3355  if (flog)
3356  print_aligned_text(cont, flog, false);
3357 
3358  switch (cont->opt->format)
3359  {
3360  case PRINT_UNALIGNED:
3361  if (cont->opt->expanded == 1)
3362  print_unaligned_vertical(cont, fout);
3363  else
3364  print_unaligned_text(cont, fout);
3365  break;
3366  case PRINT_ALIGNED:
3367  case PRINT_WRAPPED:
3368 
3369  /*
3370  * In expanded-auto mode, force vertical if a pager is passed in;
3371  * else we may make different decisions for different hunks of the
3372  * query result.
3373  */
3374  if (cont->opt->expanded == 1 ||
3375  (cont->opt->expanded == 2 && is_pager))
3376  print_aligned_vertical(cont, fout, is_pager);
3377  else
3378  print_aligned_text(cont, fout, is_pager);
3379  break;
3380  case PRINT_CSV:
3381  if (cont->opt->expanded == 1)
3382  print_csv_vertical(cont, fout);
3383  else
3384  print_csv_text(cont, fout);
3385  break;
3386  case PRINT_HTML:
3387  if (cont->opt->expanded == 1)
3388  print_html_vertical(cont, fout);
3389  else
3390  print_html_text(cont, fout);
3391  break;
3392  case PRINT_ASCIIDOC:
3393  if (cont->opt->expanded == 1)
3394  print_asciidoc_vertical(cont, fout);
3395  else
3396  print_asciidoc_text(cont, fout);
3397  break;
3398  case PRINT_LATEX:
3399  if (cont->opt->expanded == 1)
3400  print_latex_vertical(cont, fout);
3401  else
3402  print_latex_text(cont, fout);
3403  break;
3404  case PRINT_LATEX_LONGTABLE:
3405  if (cont->opt->expanded == 1)
3406  print_latex_vertical(cont, fout);
3407  else
3408  print_latex_longtable_text(cont, fout);
3409  break;
3410  case PRINT_TROFF_MS:
3411  if (cont->opt->expanded == 1)
3412  print_troff_ms_vertical(cont, fout);
3413  else
3414  print_troff_ms_text(cont, fout);
3415  break;
3416  default:
3417  fprintf(stderr, _("invalid output format (internal error): %d"),
3418  cont->opt->format);
3419  exit(EXIT_FAILURE);
3420  }
3421 
3422  if (is_local_pager)
3423  ClosePager(fout);
3424 }
3425 
3426 /*
3427  * Use this to print query results
3428  *
3429  * result: result of a successful query
3430  * opt: formatting options
3431  * fout: where to print to
3432  * is_pager: true if caller has already redirected fout to be a pager pipe
3433  * flog: if not null, also print the data there (for --log-file option)
3434  */
3435 void
3436 printQuery(const PGresult *result, const printQueryOpt *opt,
3437  FILE *fout, bool is_pager, FILE *flog)
3438 {
3439  printTableContent cont;
3440  int i,
3441  r,
3442  c;
3443 
3444  if (cancel_pressed)
3445  return;
3446 
3447  printTableInit(&cont, &opt->topt, opt->title,
3448  PQnfields(result), PQntuples(result));
3449 
3450  /* Assert caller supplied enough translate_columns[] entries */
3451  Assert(opt->translate_columns == NULL ||
3452  opt->n_translate_columns >= cont.ncolumns);
3453 
3454  for (i = 0; i < cont.ncolumns; i++)
3455  {
3456  printTableAddHeader(&cont, PQfname(result, i),
3457  opt->translate_header,
3458  column_type_alignment(PQftype(result, i)));
3459  }
3460 
3461  /* set cells */
3462  for (r = 0; r < cont.nrows; r++)
3463  {
3464  for (c = 0; c < cont.ncolumns; c++)
3465  {
3466  char *cell;
3467  bool mustfree = false;
3468  bool translate;
3469 
3470  if (PQgetisnull(result, r, c))
3471  cell = opt->nullPrint ? opt->nullPrint : "";
3472  else
3473  {
3474  cell = PQgetvalue(result, r, c);
3475  if (cont.aligns[c] == 'r' && opt->topt.numericLocale)
3476  {
3477  cell = format_numeric_locale(cell);
3478  mustfree = true;
3479  }
3480  }
3481 
3482  translate = (opt->translate_columns && opt->translate_columns[c]);
3483  printTableAddCell(&cont, cell, translate, mustfree);
3484  }
3485  }
3486 
3487  /* set footers */
3488  if (opt->footers)
3489  {
3490  char **footer;
3491 
3492  for (footer = opt->footers; *footer; footer++)
3493  printTableAddFooter(&cont, *footer);
3494  }
3495 
3496  printTable(&cont, fout, is_pager, flog);
3497  printTableCleanup(&cont);
3498 }
3499 
3500 char
3502 {
3503  char align;
3504 
3505  switch (ftype)
3506  {
3507  case INT2OID:
3508  case INT4OID:
3509  case INT8OID:
3510  case FLOAT4OID:
3511  case FLOAT8OID:
3512  case NUMERICOID:
3513  case OIDOID:
3514  case XIDOID:
3515  case CIDOID:
3516  case CASHOID:
3517  align = 'r';
3518  break;
3519  default:
3520  align = 'l';
3521  break;
3522  }
3523  return align;
3524 }
3525 
3526 void
3528 {
3529  struct lconv *extlconv;
3530 
3531  extlconv = localeconv();
3532 
3533  /* Don't accept an empty decimal_point string */
3534  if (*extlconv->decimal_point)
3535  decimal_point = pg_strdup(extlconv->decimal_point);
3536  else
3537  decimal_point = "."; /* SQL output standard */
3538 
3539  /*
3540  * Although the Open Group standard allows locales to supply more than one
3541  * group width, we consider only the first one, and we ignore any attempt
3542  * to suppress grouping by specifying CHAR_MAX. As in the backend's
3543  * cash.c, we must apply a range check to avoid being fooled by variant
3544  * CHAR_MAX values.
3545  */
3546  groupdigits = *extlconv->grouping;
3547  if (groupdigits <= 0 || groupdigits > 6)
3548  groupdigits = 3; /* most common */
3549 
3550  /* Don't accept an empty thousands_sep string, either */
3551  /* similar code exists in formatting.c */
3552  if (*extlconv->thousands_sep)
3553  thousands_sep = pg_strdup(extlconv->thousands_sep);
3554  /* Make sure thousands separator doesn't match decimal point symbol. */
3555  else if (strcmp(decimal_point, ",") != 0)
3556  thousands_sep = ",";
3557  else
3558  thousands_sep = ".";
3559 }
3560 
3561 /* get selected or default line style */
3562 const printTextFormat *
3564 {
3565  /*
3566  * Note: this function mainly exists to preserve the convention that a
3567  * printTableOpt struct can be initialized to zeroes to get default
3568  * behavior.
3569  */
3570  if (opt->line_style != NULL)
3571  return opt->line_style;
3572  else
3573  return &pg_asciiformat;
3574 }
3575 
3576 void
3578 {
3579  printTextFormat *popt = &pg_utf8format;
3580 
3581  const unicodeStyleBorderFormat *border;
3583  const unicodeStyleColumnFormat *column;
3584 
3585  popt->name = "unicode";
3586 
3587  border = &unicode_style.border_style[opt->unicode_border_linestyle];
3588  header = &unicode_style.row_style[opt->unicode_header_linestyle];
3589  column = &unicode_style.column_style[opt->unicode_column_linestyle];
3590 
3591  popt->lrule[PRINT_RULE_TOP].hrule = border->horizontal;
3592  popt->lrule[PRINT_RULE_TOP].leftvrule = border->down_and_right;
3594  popt->lrule[PRINT_RULE_TOP].rightvrule = border->down_and_left;
3595 
3596  popt->lrule[PRINT_RULE_MIDDLE].hrule = header->horizontal;
3600 
3601  popt->lrule[PRINT_RULE_BOTTOM].hrule = border->horizontal;
3602  popt->lrule[PRINT_RULE_BOTTOM].leftvrule = border->up_and_right;
3605 
3606  /* N/A */
3607  popt->lrule[PRINT_RULE_DATA].hrule = "";
3608  popt->lrule[PRINT_RULE_DATA].leftvrule = border->vertical;
3609  popt->lrule[PRINT_RULE_DATA].midvrule = column->vertical;
3610  popt->lrule[PRINT_RULE_DATA].rightvrule = border->vertical;
3611 
3612  popt->midvrule_nl = column->vertical;
3613  popt->midvrule_wrap = column->vertical;
3614  popt->midvrule_blank = column->vertical;
3615 
3616  /* Same for all unicode today */
3617  popt->header_nl_left = unicode_style.header_nl_left;
3618  popt->header_nl_right = unicode_style.header_nl_right;
3619  popt->nl_left = unicode_style.nl_left;
3620  popt->nl_right = unicode_style.nl_right;
3621  popt->wrap_left = unicode_style.wrap_left;
3622  popt->wrap_right = unicode_style.wrap_right;
3623  popt->wrap_right_border = unicode_style.wrap_right_border;
3624 
3625  return;
3626 }
3627 
3628 /*
3629  * Compute the byte distance to the end of the string or *target_width
3630  * display character positions, whichever comes first. Update *target_width
3631  * to be the number of display character positions actually filled.
3632  */
3633 static int
3634 strlen_max_width(unsigned char *str, int *target_width, int encoding)
3635 {
3636  unsigned char *start = str;
3637  unsigned char *end = str + strlen((char *) str);
3638  int curr_width = 0;
3639 
3640  while (str < end)
3641  {
3642  int char_width = PQdsplen((char *) str, encoding);
3643 
3644  /*
3645  * If the display width of the new character causes the string to
3646  * exceed its target width, skip it and return. However, if this is
3647  * the first character of the string (curr_width == 0), we have to
3648  * accept it.
3649  */
3650  if (*target_width < curr_width + char_width && curr_width != 0)
3651  break;
3652 
3653  curr_width += char_width;
3654 
3655  str += PQmblen((char *) str, encoding);
3656  }
3657 
3658  *target_width = curr_width;
3659 
3660  return str - start;
3661 }
static void print_troff_ms_vertical(const printTableContent *cont, FILE *fout)
Definition: print.c:2824
const char * midvrule
Definition: print.h:46
int env_columns
Definition: print.h:121
const char * vertical
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void printTableSetFooter(printTableContent *const content, const char *footer)
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int PQnfields(const PGresult *res)
Definition: fe-exec.c:2778
static void print_unaligned_vertical(const printTableContent *cont, FILE *fout)
Definition: print.c:460
const char * title
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char * nullPrint
Definition: print.h:168
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int encoding
Definition: print.h:120
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static void print_separator(struct separator sep, FILE *fout)
Definition: print.c:326
const printTextFormat * line_style
Definition: print.h:113
void printTableCleanup(printTableContent *const content)
Definition: print.c:3244
unicodeStyleColumnFormat column_style[2]
Definition: print.c:132
char * PQgetvalue(const PGresult *res, int tup_num, int field_num)
Definition: fe-exec.c:3164
struct unicodeStyleBorderFormat unicodeStyleBorderFormat
struct unicodeStyleRowFormat unicodeStyleRowFormat
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Definition: fe-exec.c:2856
void * pg_malloc(size_t size)
Definition: fe_memutils.c:47
const char * midvrule_wrap
Definition: print.h:73
static const unicodeStyleFormat unicode_style
Definition: print.c:143
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Definition: print.c:1825
static printTableFooter * footers_with_default(const printTableContent *cont)
Definition: print.c:345
void disable_sigpipe_trap(void)
Definition: print.c:2944
const char * header_nl_left
Definition: print.c:134
const char * header_nl_left
Definition: print.h:75
printTextFormat pg_utf8format
Definition: print.c:102
static void print_aligned_vertical_line(const printTextFormat *format, const unsigned short opt_border, unsigned long record, unsigned int hwidth, unsigned int dwidth, printTextRule pos, FILE *fout)
Definition: print.c:1174
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Definition: print.c:3045
const printTextFormat pg_asciiformat_old
Definition: print.c:80
bool wrap_right_border
Definition: print.h:81
int PQdsplen(const char *s, int encoding)
Definition: fe-misc.c:1227
static void print_aligned_text(const printTableContent *cont, FILE *fout, bool is_pager)
Definition: print.c:582
bool start_table
Definition: print.h:109
enum printFormat format
Definition: print.h:99
printTableOpt topt
Definition: print.h:167
static int integer_digits(const char *my_str)
Definition: print.c:211
static void print_aligned_vertical(const printTableContent *cont, FILE *fout, bool is_pager)
Definition: print.c:1230
const char * wrap_left
Definition: print.c:138
void set_sigpipe_trap_state(bool ignore)
Definition: print.c:2980
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Definition: print.h:125
static void print_troff_ms_text(const printTableContent *cont, FILE *fout)
Definition: print.c:2732
printTextLineFormat lrule[4]
Definition: print.h:71
const char * horizontal
Definition: print.c:124
static void print_csv_text(const printTableContent *cont, FILE *fout)
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#define SIGPIPE
Definition: win32_port.h:159
unsigned int Oid
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const printTableOpt * opt
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const char * name
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Definition: print.h:59
int PQntuples(const PGresult *res)
Definition: fe-exec.c:2770
#define fprintf
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Definition: print.h:112
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Definition: print.h:94
const char * midvrule_blank
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unicode_linestyle unicode_border_linestyle
Definition: print.h:123
Datum translate(PG_FUNCTION_ARGS)
const char * header_nl_right
Definition: print.c:135
static int groupdigits
Definition: print.c:52
const char * vertical_and_left[2]
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struct printTableFooter * next
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const char ** cell
Definition: print.h:155
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Definition: print.h:76
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Definition: print.h:102
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unsigned short int expanded
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Definition: print.c:369
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Definition: print.h:124
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Definition: print.h:50
static void csv_print_field(const char *str, FILE *fout, char sep)
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static printTableFooter default_footer_cell
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Definition: print.c:115
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Definition: print.h:169
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char * data
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