1 /* PSPP - a program for statistical analysis.
2 Copyright (C) 1997-9, 2000, 2007, 2009, 2010, 2011, 2012, 2013, 2014 Free Software Foundation, Inc.
4 This program is free software: you can redistribute it and/or modify
5 it under the terms of the GNU General Public License as published by
6 the Free Software Foundation, either version 3 of the License, or
7 (at your option) any later version.
9 This program is distributed in the hope that it will be useful,
10 but WITHOUT ANY WARRANTY; without even the implied warranty of
11 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
12 GNU General Public License for more details.
14 You should have received a copy of the GNU General Public License
15 along with this program. If not, see <http://www.gnu.org/licenses/>. */
30 #include "data/file-name.h"
31 #include "data/settings.h"
32 #include "libpspp/assertion.h"
33 #include "libpspp/cast.h"
34 #include "libpspp/compiler.h"
35 #include "libpspp/message.h"
36 #include "libpspp/start-date.h"
37 #include "libpspp/string-map.h"
38 #include "libpspp/u8-line.h"
39 #include "libpspp/version.h"
40 #include "output/ascii.h"
41 #include "output/cairo.h"
42 #include "output/chart-item-provider.h"
43 #include "output/driver-provider.h"
44 #include "output/message-item.h"
45 #include "output/options.h"
46 #include "output/render.h"
47 #include "output/tab.h"
48 #include "output/table-item.h"
49 #include "output/text-item.h"
51 #include "gl/minmax.h"
52 #include "gl/xalloc.h"
55 #define _(msgid) gettext (msgid)
57 /* This file uses TABLE_HORZ and TABLE_VERT enough to warrant abbreviating. */
61 #define N_BOX (RENDER_N_LINES * RENDER_N_LINES \
62 * RENDER_N_LINES * RENDER_N_LINES)
64 static const ucs4_t ascii_box_chars[N_BOX] =
95 static const ucs4_t unicode_box_chars[N_BOX] =
97 0x0020, 0x2575, 0x2551,
98 0x2574, 0x256f, 0x255c,
99 0x2550, 0x255b, 0x255d,
100 0x2577, 0x2502, 0x2551,
101 0x256e, 0x2524, 0x2562,
102 0x2555, 0x2561, 0x2563,
103 0x2551, 0x2551, 0x2551,
104 0x2556, 0x2562, 0x2562,
105 0x2557, 0x2563, 0x2563,
106 0x2576, 0x2570, 0x2559,
107 0x2500, 0x2534, 0x2568,
108 0x2550, 0x2567, 0x2569,
109 0x256d, 0x251c, 0x255f,
110 0x252c, 0x253c, 0x256a,
111 0x2564, 0x256a, 0x256c,
112 0x2553, 0x255f, 0x255f,
113 0x2565, 0x256b, 0x256b,
114 0x2566, 0x256c, 0x256c,
115 0x2550, 0x2558, 0x255a,
116 0x2550, 0x2567, 0x2569,
117 0x2550, 0x2567, 0x2569,
118 0x2552, 0x255e, 0x2560,
119 0x2564, 0x256a, 0x256c,
120 0x2564, 0x256a, 0x256c,
121 0x2554, 0x2560, 0x2560,
122 0x2560, 0x256c, 0x256c,
123 0x2566, 0x256c, 0x256c,
127 make_box_index (int left, int right, int top, int bottom)
129 return ((right * RENDER_N_LINES + bottom) * RENDER_N_LINES + left) * RENDER_N_LINES + top;
132 /* How to emphasize text. */
135 EMPH_BOLD, /* Overstrike for bold. */
136 EMPH_UNDERLINE, /* Overstrike for underlining. */
137 EMPH_NONE /* No emphasis. */
140 /* ASCII output driver. */
143 struct output_driver driver;
145 /* User parameters. */
146 bool append; /* Append if output file already exists? */
147 bool headers; /* Print headers at top of page? */
148 bool paginate; /* Insert formfeeds? */
149 bool squeeze_blank_lines; /* Squeeze multiple blank lines into one? */
150 enum emphasis_style emphasis; /* How to emphasize text. */
151 char *chart_file_name; /* Name of files used for charts. */
154 /* Colours for charts */
159 int width; /* Page width. */
160 int length; /* Page length minus margins and header. */
161 bool auto_width; /* Use viewwidth as page width? */
162 bool auto_length; /* Use viewlength as page width? */
164 int top_margin; /* Top margin in lines. */
165 int bottom_margin; /* Bottom margin in lines. */
167 int min_break[TABLE_N_AXES]; /* Min cell size to break across pages. */
169 const ucs4_t *box; /* Line & box drawing characters. */
171 /* Internal state. */
175 char *file_name; /* Output file name. */
176 FILE *file; /* Output file. */
177 bool error; /* Output error? */
178 int page_number; /* Current page number. */
179 struct u8_line *lines; /* Page content. */
180 int allocated_lines; /* Number of lines allocated. */
181 int chart_cnt; /* Number of charts so far. */
185 static const struct output_driver_class ascii_driver_class;
187 static void ascii_submit (struct output_driver *, const struct output_item *);
189 static int vertical_margins (const struct ascii_driver *);
191 static bool update_page_size (struct ascii_driver *, bool issue_error);
192 static int parse_page_size (struct driver_option *);
194 static void ascii_close_page (struct ascii_driver *);
195 static bool ascii_open_page (struct ascii_driver *);
197 static void ascii_draw_line (void *, int bb[TABLE_N_AXES][2],
198 enum render_line_style styles[TABLE_N_AXES][2]);
199 static void ascii_measure_cell_width (void *, const struct table_cell *,
201 static int ascii_measure_cell_height (void *, const struct table_cell *,
203 static void ascii_draw_cell (void *, const struct table_cell *,
204 int bb[TABLE_N_AXES][2],
205 int clip[TABLE_N_AXES][2]);
208 reallocate_lines (struct ascii_driver *a)
210 if (a->length > a->allocated_lines)
213 a->lines = xnrealloc (a->lines, a->length, sizeof *a->lines);
214 for (i = a->allocated_lines; i < a->length; i++)
215 u8_line_init (&a->lines[i]);
216 a->allocated_lines = a->length;
221 static struct ascii_driver *
222 ascii_driver_cast (struct output_driver *driver)
224 assert (driver->class == &ascii_driver_class);
225 return UP_CAST (driver, struct ascii_driver, driver);
228 static struct driver_option *
229 opt (struct output_driver *d, struct string_map *options, const char *key,
230 const char *default_value)
232 return driver_option_get (d, options, key, default_value);
235 static struct output_driver *
236 ascii_create (const char *file_name, enum settings_output_devices device_type,
237 struct string_map *o)
239 enum { BOX_ASCII, BOX_UNICODE } box;
240 int min_break[TABLE_N_AXES];
241 struct output_driver *d;
242 struct ascii_driver *a;
245 a = xzalloc (sizeof *a);
247 output_driver_init (&a->driver, &ascii_driver_class, file_name, device_type);
248 a->append = parse_boolean (opt (d, o, "append", "false"));
249 a->headers = parse_boolean (opt (d, o, "headers", "false"));
250 a->paginate = parse_boolean (opt (d, o, "paginate", "false"));
251 a->squeeze_blank_lines = parse_boolean (opt (d, o, "squeeze", "true"));
252 a->emphasis = parse_enum (opt (d, o, "emphasis", "none"),
254 "underline", EMPH_UNDERLINE,
258 a->chart_file_name = parse_chart_file_name (opt (d, o, "charts", file_name));
260 a->top_margin = parse_int (opt (d, o, "top-margin", "0"), 0, INT_MAX);
261 a->bottom_margin = parse_int (opt (d, o, "bottom-margin", "0"), 0, INT_MAX);
263 min_break[H] = parse_int (opt (d, o, "min-hbreak", "-1"), -1, INT_MAX);
264 min_break[V] = parse_int (opt (d, o, "min-vbreak", "-1"), -1, INT_MAX);
266 a->width = parse_page_size (opt (d, o, "width", "79"));
267 paper_length = parse_page_size (opt (d, o, "length", "66"));
268 a->auto_width = a->width < 0;
269 a->auto_length = paper_length < 0;
270 a->length = paper_length - vertical_margins (a);
271 a->min_break[H] = min_break[H] >= 0 ? min_break[H] : a->width / 2;
272 a->min_break[V] = min_break[V] >= 0 ? min_break[V] : a->length / 2;
274 parse_color (d, o, "background-color", "#FFFFFFFFFFFF", &a->bg);
275 parse_color (d, o, "foreground-color", "#000000000000", &a->fg);
277 box = parse_enum (opt (d, o, "box", "ascii"),
279 "unicode", BOX_UNICODE,
281 a->box = box == BOX_ASCII ? ascii_box_chars : unicode_box_chars;
283 a->command_name = NULL;
284 a->title = xstrdup ("");
285 a->subtitle = xstrdup ("");
286 a->file_name = xstrdup (file_name);
291 a->allocated_lines = 0;
294 if (!update_page_size (a, true))
300 output_driver_destroy (d);
305 parse_page_size (struct driver_option *option)
307 int dim = atol (option->default_value);
309 if (option->value != NULL)
311 if (!strcmp (option->value, "auto"))
319 value = strtol (option->value, &tail, 0);
320 if (dim >= 1 && errno != ERANGE && *tail == '\0')
323 msg (MW, _("%s: %s must be positive integer or `auto'"),
324 option->driver_name, option->name);
328 driver_option_destroy (option);
334 vertical_margins (const struct ascii_driver *a)
336 return a->top_margin + a->bottom_margin + (a->headers ? 3 : 0);
339 /* Re-calculates the page width and length based on settings,
340 margins, and, if "auto" is set, the size of the user's
341 terminal window or GUI output window. */
343 update_page_size (struct ascii_driver *a, bool issue_error)
345 enum { MIN_WIDTH = 6, MIN_LENGTH = 6 };
348 a->width = settings_get_viewwidth ();
350 a->length = settings_get_viewlength () - vertical_margins (a);
352 if (a->width < MIN_WIDTH || a->length < MIN_LENGTH)
356 _("ascii: page excluding margins and headers "
357 "must be at least %d characters wide by %d lines long, but "
358 "as configured is only %d characters by %d lines"),
359 MIN_WIDTH, MIN_LENGTH,
360 a->width, a->length);
361 if (a->width < MIN_WIDTH)
362 a->width = MIN_WIDTH;
363 if (a->length < MIN_LENGTH)
364 a->length = MIN_LENGTH;
368 reallocate_lines (a);
374 ascii_destroy (struct output_driver *driver)
376 struct ascii_driver *a = ascii_driver_cast (driver);
380 ascii_close_page (a);
383 fn_close (a->file_name, a->file);
384 free (a->command_name);
388 free (a->chart_file_name);
389 for (i = 0; i < a->allocated_lines; i++)
390 u8_line_destroy (&a->lines[i]);
396 ascii_flush (struct output_driver *driver)
398 struct ascii_driver *a = ascii_driver_cast (driver);
401 ascii_close_page (a);
403 if (fn_close (a->file_name, a->file) != 0)
404 msg_error (errno, _("ascii: closing output file `%s'"), a->file_name);
410 ascii_output_table_item (struct ascii_driver *a,
411 const struct table_item *table_item)
413 struct render_params params;
414 struct render_pager *p;
417 update_page_size (a, false);
419 params.draw_line = ascii_draw_line;
420 params.measure_cell_width = ascii_measure_cell_width;
421 params.measure_cell_height = ascii_measure_cell_height;
422 params.adjust_break = NULL;
423 params.draw_cell = ascii_draw_cell;
425 params.size[H] = a->width;
426 params.size[V] = a->length;
427 params.font_size[H] = 1;
428 params.font_size[V] = 1;
429 for (i = 0; i < RENDER_N_LINES; i++)
431 int width = i == RENDER_LINE_NONE ? 0 : 1;
432 params.line_widths[H][i] = width;
433 params.line_widths[V][i] = width;
435 for (i = 0; i < TABLE_N_AXES; i++)
436 params.min_break[i] = a->min_break[i];
438 if (a->file == NULL && !ascii_open_page (a))
441 p = render_pager_create (¶ms, table_item);
442 while (render_pager_has_next (p))
448 used = render_pager_draw_next (p, a->length - a->y);
452 ascii_close_page (a);
453 if (!ascii_open_page (a))
459 render_pager_destroy (p);
463 ascii_output_text (struct ascii_driver *a, const char *text)
465 struct table_item *table_item;
467 table_item = table_item_create (table_from_string (TAB_LEFT, text), NULL);
468 ascii_output_table_item (a, table_item);
469 table_item_unref (table_item);
473 ascii_submit (struct output_driver *driver,
474 const struct output_item *output_item)
476 struct ascii_driver *a = ascii_driver_cast (driver);
478 output_driver_track_current_command (output_item, &a->command_name);
483 if (is_table_item (output_item))
484 ascii_output_table_item (a, to_table_item (output_item));
486 else if (is_chart_item (output_item) && a->chart_file_name != NULL)
488 struct chart_item *chart_item = to_chart_item (output_item);
491 file_name = xr_draw_png_chart (chart_item, a->chart_file_name,
495 if (file_name != NULL)
497 struct text_item *text_item;
499 text_item = text_item_create_format (
500 TEXT_ITEM_PARAGRAPH, _("See %s for a chart."), file_name);
502 ascii_submit (driver, &text_item->output_item);
503 text_item_unref (text_item);
507 #endif /* HAVE_CAIRO */
508 else if (is_text_item (output_item))
510 const struct text_item *text_item = to_text_item (output_item);
511 enum text_item_type type = text_item_get_type (text_item);
512 const char *text = text_item_get_text (text_item);
516 case TEXT_ITEM_TITLE:
518 a->title = xstrdup (text);
521 case TEXT_ITEM_SUBTITLE:
523 a->subtitle = xstrdup (text);
526 case TEXT_ITEM_COMMAND_OPEN:
527 case TEXT_ITEM_COMMAND_CLOSE:
530 case TEXT_ITEM_BLANK_LINE:
535 case TEXT_ITEM_EJECT_PAGE:
537 ascii_close_page (a);
541 ascii_output_text (a, text);
545 else if (is_message_item (output_item))
547 const struct message_item *message_item = to_message_item (output_item);
548 const struct msg *msg = message_item_get_msg (message_item);
549 char *s = msg_to_string (msg, a->command_name);
550 ascii_output_text (a, s);
555 const struct output_driver_factory txt_driver_factory =
556 { "txt", "-", ascii_create };
557 const struct output_driver_factory list_driver_factory =
558 { "list", "-", ascii_create };
560 static const struct output_driver_class ascii_driver_class =
568 static char *ascii_reserve (struct ascii_driver *, int y, int x0, int x1,
570 static void ascii_layout_cell (struct ascii_driver *,
571 const struct table_cell *,
572 int bb[TABLE_N_AXES][2],
573 int clip[TABLE_N_AXES][2],
574 int *width, int *height);
577 ascii_draw_line (void *a_, int bb[TABLE_N_AXES][2],
578 enum render_line_style styles[TABLE_N_AXES][2])
580 struct ascii_driver *a = a_;
587 /* Clip to the page. */
588 x0 = MAX (bb[H][0] + a->x, 0);
589 y0 = MAX (bb[V][0] + a->y, 0);
590 x1 = MIN (bb[H][1] + a->x, a->width);
591 y1 = MIN (bb[V][1] + a->y, a->length);
592 if (x1 <= 0 || y1 <= 0 || x0 >= a->width || y0 >= a->length)
596 uc = a->box[make_box_index (styles[V][0], styles[V][1],
597 styles[H][0], styles[H][1])];
598 mblen = u8_uctomb (CHAR_CAST (uint8_t *, mbchar), uc, 6);
599 for (y = y0; y < y1; y++)
601 char *p = ascii_reserve (a, y, x0, x1, mblen * (x1 - x0));
602 for (x = x0; x < x1; x++)
604 memcpy (p, mbchar, mblen);
611 ascii_measure_cell_width (void *a_, const struct table_cell *cell,
612 int *min_width, int *max_width)
614 struct ascii_driver *a = a_;
615 int bb[TABLE_N_AXES][2];
616 int clip[TABLE_N_AXES][2];
623 clip[H][0] = clip[H][1] = clip[V][0] = clip[V][1] = 0;
624 ascii_layout_cell (a, cell, bb, clip, max_width, &h);
626 if (cell->n_contents != 1
627 || cell->contents[0].table
628 || strchr (cell->contents[0].text, ' '))
631 ascii_layout_cell (a, cell, bb, clip, min_width, &h);
634 *min_width = *max_width;
638 ascii_measure_cell_height (void *a_, const struct table_cell *cell, int width)
640 struct ascii_driver *a = a_;
641 int bb[TABLE_N_AXES][2];
642 int clip[TABLE_N_AXES][2];
649 clip[H][0] = clip[H][1] = clip[V][0] = clip[V][1] = 0;
650 ascii_layout_cell (a, cell, bb, clip, &w, &h);
655 ascii_draw_cell (void *a_, const struct table_cell *cell,
656 int bb[TABLE_N_AXES][2], int clip[TABLE_N_AXES][2])
658 struct ascii_driver *a = a_;
661 ascii_layout_cell (a, cell, bb, clip, &w, &h);
665 ascii_reserve (struct ascii_driver *a, int y, int x0, int x1, int n)
667 assert (y < a->allocated_lines);
668 return u8_line_reserve (&a->lines[y], x0, x1, n);
672 text_draw (struct ascii_driver *a, unsigned int options,
673 int bb[TABLE_N_AXES][2], int clip[TABLE_N_AXES][2],
674 int y, const uint8_t *string, int n, size_t width)
676 int x0 = MAX (0, clip[H][0] + a->x);
677 int y0 = MAX (0, clip[V][0] + a->y);
678 int x1 = MIN (a->width, clip[H][1] + a->x);
679 int y1 = MIN (a->length, clip[V][1] + a->y);
683 if (y < y0 || y >= y1)
686 switch (options & TAB_ALIGNMENT)
692 x = (bb[H][0] + bb[H][1] - width + 1) / 2;
695 x = bb[H][1] - width;
712 mblen = u8_mbtouc (&uc, string, n);
717 w = uc_width (uc, "UTF-8");
732 for (ofs = 0; ofs < n; )
738 mblen = u8_mbtouc (&uc, string + ofs, n - ofs);
740 w = uc_width (uc, "UTF-8");
743 if (width + w > x1 - x)
754 if (!(options & TAB_EMPH) || a->emphasis == EMPH_NONE)
755 memcpy (ascii_reserve (a, y, x, x + width, n), string, n);
763 /* First figure out how many bytes need to be inserted. */
765 for (ofs = 0; ofs < n; ofs += mblen)
770 mblen = u8_mbtouc (&uc, string + ofs, n - ofs);
771 w = uc_width (uc, "UTF-8");
774 n_out += a->emphasis == EMPH_UNDERLINE ? 2 : 1 + mblen;
777 /* Then insert them. */
778 out = ascii_reserve (a, y, x, x + width, n_out);
779 for (ofs = 0; ofs < n; ofs += mblen)
784 mblen = u8_mbtouc (&uc, string + ofs, n - ofs);
785 w = uc_width (uc, "UTF-8");
789 if (a->emphasis == EMPH_UNDERLINE)
792 out = mempcpy (out, string + ofs, mblen);
795 out = mempcpy (out, string + ofs, mblen);
801 ascii_layout_cell_text (struct ascii_driver *a,
802 const struct cell_contents *contents,
803 int bb[TABLE_N_AXES][2], int clip[TABLE_N_AXES][2],
806 size_t length = strlen (contents->text);
816 breaks = xmalloc (length + 1);
817 u8_possible_linebreaks (CHAR_CAST (const uint8_t *, contents->text), length,
819 breaks[length] = (breaks[length - 1] == UC_BREAK_MANDATORY
820 ? UC_BREAK_PROHIBITED : UC_BREAK_POSSIBLE);
823 bb_width = bb[H][1] - bb[H][0];
824 for (y = bb[V][0]; y < bb[V][1] && pos < length; y++)
826 const uint8_t *line = CHAR_CAST (const uint8_t *, contents->text + pos);
827 const char *b = breaks + pos;
828 size_t n = length - pos;
830 size_t last_break_ofs = 0;
831 int last_break_width = 0;
836 for (ofs = 0; ofs < n; )
842 mblen = u8_mbtouc (&uc, line + ofs, n - ofs);
843 if (b[ofs] == UC_BREAK_MANDATORY)
845 else if (b[ofs] == UC_BREAK_POSSIBLE)
847 last_break_ofs = ofs;
848 last_break_width = width;
851 w = uc_width (uc, "UTF-8");
854 if (width + w > bb_width)
856 if (isspace (line[ofs]))
858 else if (last_break_ofs != 0)
860 ofs = last_break_ofs;
861 width = last_break_width;
870 /* Trim any trailing spaces off the end of the text to be drawn. */
871 for (graph_ofs = ofs; graph_ofs > 0; graph_ofs--)
872 if (!isspace (line[graph_ofs - 1]))
874 width -= ofs - graph_ofs;
877 text_draw (a, contents->options, bb, clip, y, line, graph_ofs, width);
879 /* If a new-line ended the line, just skip the new-line. Otherwise, skip
880 past any spaces past the end of the line (but not past a new-line). */
881 if (b[ofs] == UC_BREAK_MANDATORY)
884 while (ofs < n && isspace (line[ofs]) && b[ofs] != UC_BREAK_MANDATORY)
898 ascii_layout_subtable (struct ascii_driver *a,
899 const struct cell_contents *contents,
900 int bb[TABLE_N_AXES][2], int clip[TABLE_N_AXES][2] UNUSED,
903 struct render_params params;
904 struct render_pager *p;
905 int r[TABLE_N_AXES][2];
909 params.draw_line = ascii_draw_line;
910 params.measure_cell_width = ascii_measure_cell_width;
911 params.measure_cell_height = ascii_measure_cell_height;
912 params.adjust_break = NULL;
913 params.draw_cell = ascii_draw_cell,
915 params.size[H] = bb[TABLE_HORZ][1] - bb[TABLE_HORZ][0];
916 params.size[V] = bb[TABLE_VERT][1] - bb[TABLE_VERT][0];
917 params.font_size[H] = 1;
918 params.font_size[V] = 1;
919 for (i = 0; i < RENDER_N_LINES; i++)
921 int width = i == RENDER_LINE_NONE ? 0 : 1;
922 params.line_widths[H][i] = width;
923 params.line_widths[V][i] = width;
926 p = render_pager_create (¶ms, contents->table);
927 width = render_pager_get_size (p, TABLE_HORZ);
928 height = render_pager_get_size (p, TABLE_VERT);
930 /* r = intersect(bb, clip) - bb. */
931 for (i = 0; i < TABLE_N_AXES; i++)
933 r[i][0] = MAX (bb[i][0], clip[i][0]) - bb[i][0];
934 r[i][1] = MIN (bb[i][1], clip[i][1]) - bb[i][0];
937 if (r[H][0] < r[H][1] && r[V][0] < r[V][1])
939 unsigned int alignment = contents->options & TAB_ALIGNMENT;
942 a->x += bb[TABLE_HORZ][0];
943 if (alignment == TAB_RIGHT)
944 a->x += params.size[H] - width;
945 else if (alignment == TAB_CENTER)
946 a->x += (params.size[H] - width) / 2;
947 a->y += bb[TABLE_VERT][0];
948 render_pager_draw (p);
949 a->y -= bb[TABLE_VERT][0];
952 render_pager_destroy (p);
956 return bb[V][0] + height;
960 ascii_layout_cell (struct ascii_driver *a, const struct table_cell *cell,
961 int bb_[TABLE_N_AXES][2], int clip[TABLE_N_AXES][2],
962 int *widthp, int *heightp)
964 int bb[TABLE_N_AXES][2];
970 memcpy (bb, bb_, sizeof bb);
971 for (i = 0; i < cell->n_contents && bb[V][0] < bb[V][1]; i++)
973 const struct cell_contents *contents = &cell->contents[i];
975 /* Put a blank line between contents. */
979 if (bb[V][0] >= bb[V][1])
984 bb[V][0] = ascii_layout_cell_text (a, contents, bb, clip, widthp);
986 bb[V][0] = ascii_layout_subtable (a, contents, bb, clip, widthp);
988 *heightp = bb[V][0] - bb_[V][0];
992 ascii_test_write (struct output_driver *driver,
993 const char *s, int x, int y, unsigned int options)
995 struct ascii_driver *a = ascii_driver_cast (driver);
996 struct cell_contents contents;
997 struct table_cell cell;
998 int bb[TABLE_N_AXES][2];
1001 if (a->file == NULL && !ascii_open_page (a))
1005 contents.options = options | TAB_LEFT;
1006 contents.text = CONST_CAST (char *, s);
1007 contents.table = NULL;
1009 memset (&cell, 0, sizeof cell);
1010 cell.contents = &contents;
1011 cell.n_contents = 1;
1013 bb[TABLE_HORZ][0] = x;
1014 bb[TABLE_HORZ][1] = a->width;
1015 bb[TABLE_VERT][0] = y;
1016 bb[TABLE_VERT][1] = a->length;
1018 ascii_layout_cell (a, &cell, bb, bb, &width, &height);
1024 ascii_test_set_length (struct output_driver *driver, int y, int length)
1026 struct ascii_driver *a = ascii_driver_cast (driver);
1028 if (a->file == NULL && !ascii_open_page (a))
1031 if (y < 0 || y >= a->length)
1033 u8_line_set_length (&a->lines[y], length);
1036 /* ascii_close_page () and support routines. */
1038 #if HAVE_DECL_SIGWINCH
1039 static struct ascii_driver *the_driver;
1042 winch_handler (int signum UNUSED)
1044 update_page_size (the_driver, false);
1049 ascii_open_page (struct ascii_driver *a)
1056 if (a->file == NULL)
1058 a->file = fn_open (a->file_name, a->append ? "a" : "w");
1059 if (a->file != NULL)
1061 if ( isatty (fileno (a->file)))
1063 #if HAVE_DECL_SIGWINCH
1064 struct sigaction action;
1065 sigemptyset (&action.sa_mask);
1066 action.sa_flags = 0;
1067 action.sa_handler = winch_handler;
1069 sigaction (SIGWINCH, &action, NULL);
1071 a->auto_width = true;
1072 a->auto_length = true;
1077 msg_error (errno, _("ascii: opening output file `%s'"),
1086 reallocate_lines (a);
1088 for (i = 0; i < a->length; i++)
1089 u8_line_clear (&a->lines[i]);
1095 output_title_line (FILE *out, int width, const char *left, const char *right)
1097 struct string s = DS_EMPTY_INITIALIZER;
1098 ds_put_byte_multiple (&s, ' ', width);
1101 size_t length = MIN (strlen (left), width);
1102 memcpy (ds_end (&s) - width, left, length);
1106 size_t length = MIN (strlen (right), width);
1107 memcpy (ds_end (&s) - length, right, length);
1109 ds_put_byte (&s, '\n');
1110 fputs (ds_cstr (&s), out);
1115 ascii_close_page (struct ascii_driver *a)
1121 if (a->file == NULL)
1124 if (!a->top_margin && !a->bottom_margin && a->squeeze_blank_lines
1125 && !a->paginate && a->page_number > 1)
1126 putc ('\n', a->file);
1128 for (i = 0; i < a->top_margin; i++)
1129 putc ('\n', a->file);
1134 r1 = xasprintf (_("%s - Page %d"), get_start_date (), a->page_number);
1135 r2 = xasprintf ("%s - %s" , version, host_system);
1137 output_title_line (a->file, a->width, a->title, r1);
1138 output_title_line (a->file, a->width, a->subtitle, r2);
1139 putc ('\n', a->file);
1146 for (y = 0; y < a->allocated_lines; y++)
1148 struct u8_line *line = &a->lines[y];
1150 if (a->squeeze_blank_lines && y > 0 && line->width == 0)
1156 putc ('\n', a->file);
1160 while (ds_chomp_byte (&line->s, ' '))
1162 fwrite (ds_data (&line->s), 1, ds_length (&line->s), a->file);
1163 putc ('\n', a->file);
1166 if (!a->squeeze_blank_lines)
1167 for (y = a->allocated_lines; y < a->length; y++)
1168 putc ('\n', a->file);
1170 for (i = 0; i < a->bottom_margin; i++)
1171 putc ('\n', a->file);
1173 putc ('\f', a->file);