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/file-handle-def.h"
32 #include "data/settings.h"
33 #include "libpspp/assertion.h"
34 #include "libpspp/cast.h"
35 #include "libpspp/compiler.h"
36 #include "libpspp/message.h"
37 #include "libpspp/start-date.h"
38 #include "libpspp/string-map.h"
39 #include "libpspp/u8-line.h"
40 #include "libpspp/version.h"
41 #include "output/ascii.h"
42 #include "output/cairo.h"
43 #include "output/chart-item-provider.h"
44 #include "output/driver-provider.h"
45 #include "output/message-item.h"
46 #include "output/options.h"
47 #include "output/pivot-table.h"
48 #include "output/render.h"
49 #include "output/table-item.h"
50 #include "output/text-item.h"
52 #include "gl/minmax.h"
53 #include "gl/xalloc.h"
57 #define _(msgid) gettext (msgid)
59 /* This file uses TABLE_HORZ and TABLE_VERT enough to warrant abbreviating. */
71 #define N_BOX (ASCII_N_LINES * ASCII_N_LINES \
72 * ASCII_N_LINES * ASCII_N_LINES)
74 static const ucs4_t ascii_box_chars[N_BOX] =
105 static const ucs4_t unicode_box_chars[N_BOX] =
107 0x0020, 0x2575, 0x2551,
108 0x2574, 0x256f, 0x255c,
109 0x2550, 0x255b, 0x255d,
110 0x2577, 0x2502, 0x2551,
111 0x256e, 0x2524, 0x2562,
112 0x2555, 0x2561, 0x2563,
113 0x2551, 0x2551, 0x2551,
114 0x2556, 0x2562, 0x2562,
115 0x2557, 0x2563, 0x2563,
116 0x2576, 0x2570, 0x2559,
117 0x2500, 0x2534, 0x2568,
118 0x2550, 0x2567, 0x2569,
119 0x256d, 0x251c, 0x255f,
120 0x252c, 0x253c, 0x256a,
121 0x2564, 0x256a, 0x256c,
122 0x2553, 0x255f, 0x255f,
123 0x2565, 0x256b, 0x256b,
124 0x2566, 0x256c, 0x256c,
125 0x2550, 0x2558, 0x255a,
126 0x2550, 0x2567, 0x2569,
127 0x2550, 0x2567, 0x2569,
128 0x2552, 0x255e, 0x2560,
129 0x2564, 0x256a, 0x256c,
130 0x2564, 0x256a, 0x256c,
131 0x2554, 0x2560, 0x2560,
132 0x2560, 0x256c, 0x256c,
133 0x2566, 0x256c, 0x256c,
137 ascii_line_from_render_line (int render_line)
141 case RENDER_LINE_NONE:
142 return ASCII_LINE_NONE;
144 case RENDER_LINE_SINGLE:
145 case RENDER_LINE_DASHED:
146 case RENDER_LINE_THICK:
147 case RENDER_LINE_THIN:
148 return ASCII_LINE_SINGLE;
150 case RENDER_LINE_DOUBLE:
151 return ASCII_LINE_DOUBLE;
154 return ASCII_LINE_NONE;
160 make_box_index (int left_, int right_, int top_, int bottom_)
162 bool rtl = render_direction_rtl ();
163 int left = ascii_line_from_render_line (rtl ? right_ : left_);
164 int right = ascii_line_from_render_line (rtl ? left_ : right_);
165 int top = ascii_line_from_render_line (top_);
166 int bottom = ascii_line_from_render_line (bottom_);
169 idx = idx * ASCII_N_LINES + bottom;
170 idx = idx * ASCII_N_LINES + left;
171 idx = idx * ASCII_N_LINES + top;
175 /* ASCII output driver. */
178 struct output_driver driver;
180 /* User parameters. */
181 bool append; /* Append if output file already exists? */
182 bool emphasis; /* Enable bold and underline in output? */
183 char *chart_file_name; /* Name of files used for charts. */
186 /* Colours for charts */
187 struct cell_color fg;
188 struct cell_color bg;
191 int width; /* Page width. */
192 bool auto_width; /* Use viewwidth as page width? */
194 int min_break[TABLE_N_AXES]; /* Min cell size to break across pages. */
196 const ucs4_t *box; /* Line & box drawing characters. */
198 /* Internal state. */
199 struct file_handle *handle;
200 FILE *file; /* Output file. */
201 bool error; /* Output error? */
202 struct u8_line *lines; /* Page content. */
203 int allocated_lines; /* Number of lines allocated. */
204 int chart_cnt; /* Number of charts so far. */
205 struct render_params params;
208 static const struct output_driver_class ascii_driver_class;
210 static void ascii_submit (struct output_driver *, const struct output_item *);
212 static bool update_page_size (struct ascii_driver *, bool issue_error);
213 static int parse_page_size (struct driver_option *);
215 static bool ascii_open_page (struct ascii_driver *);
217 static void ascii_draw_line (void *, int bb[TABLE_N_AXES][2],
218 enum render_line_style styles[TABLE_N_AXES][2],
219 struct cell_color colors[TABLE_N_AXES][2]);
220 static void ascii_measure_cell_width (void *, const struct table_cell *,
222 static int ascii_measure_cell_height (void *, const struct table_cell *,
224 static void ascii_draw_cell (void *, const struct table_cell *, int color_idx,
225 int bb[TABLE_N_AXES][2],
226 int spill[TABLE_N_AXES][2],
227 int clip[TABLE_N_AXES][2]);
229 static struct ascii_driver *
230 ascii_driver_cast (struct output_driver *driver)
232 assert (driver->class == &ascii_driver_class);
233 return UP_CAST (driver, struct ascii_driver, driver);
236 static struct driver_option *
237 opt (struct output_driver *d, struct string_map *options, const char *key,
238 const char *default_value)
240 return driver_option_get (d, options, key, default_value);
243 /* Return true iff the terminal appears to be an xterm with
244 UTF-8 capabilities */
246 term_is_utf8_xterm (void)
248 const char *term = getenv ("TERM");
249 const char *xterm_locale = getenv ("XTERM_LOCAL");
250 return (term && xterm_locale
251 && !strcmp (term, "xterm")
252 && (strcasestr (xterm_locale, "utf8")
253 || strcasestr (xterm_locale, "utf-8")));
256 static struct output_driver *
257 ascii_create (struct file_handle *fh, enum settings_output_devices device_type,
258 struct string_map *o)
260 enum { BOX_ASCII, BOX_UNICODE } box;
261 int min_break[TABLE_N_AXES];
262 struct output_driver *d;
263 struct ascii_driver *a;
265 a = xzalloc (sizeof *a);
267 output_driver_init (&a->driver, &ascii_driver_class, fh_get_file_name (fh), device_type);
268 a->append = parse_boolean (opt (d, o, "append", "false"));
269 a->emphasis = parse_boolean (opt (d, o, "emphasis", "false"));
271 a->chart_file_name = parse_chart_file_name (opt (d, o, "charts", fh_get_file_name (fh)));
274 min_break[H] = parse_int (opt (d, o, "min-hbreak", "-1"), -1, INT_MAX);
276 a->width = parse_page_size (opt (d, o, "width", "79"));
277 a->auto_width = a->width < 0;
278 a->min_break[H] = min_break[H] >= 0 ? min_break[H] : a->width / 2;
280 parse_color (d, o, "background-color", "#FFFFFFFFFFFF", &a->bg);
281 parse_color (d, o, "foreground-color", "#000000000000", &a->fg);
284 const char *default_box = (!strcmp (fh_get_file_name (fh), "-")
285 && isatty (STDOUT_FILENO)
286 && (!strcmp (locale_charset (), "UTF-8")
287 || term_is_utf8_xterm ())
288 ? "unicode" : "ascii");
289 box = parse_enum (opt (d, o, "box", default_box),
291 "unicode", BOX_UNICODE,
293 a->box = box == BOX_ASCII ? ascii_box_chars : unicode_box_chars;
298 a->allocated_lines = 0;
301 a->params.draw_line = ascii_draw_line;
302 a->params.measure_cell_width = ascii_measure_cell_width;
303 a->params.measure_cell_height = ascii_measure_cell_height;
304 a->params.adjust_break = NULL;
305 a->params.draw_cell = ascii_draw_cell;
307 a->params.size[H] = a->width;
308 a->params.size[V] = INT_MAX;
309 a->params.font_size[H] = 1;
310 a->params.font_size[V] = 1;
311 for (int i = 0; i < RENDER_N_LINES; i++)
313 int width = i == RENDER_LINE_NONE ? 0 : 1;
314 a->params.line_widths[H][i] = width;
315 a->params.line_widths[V][i] = width;
317 for (int i = 0; i < TABLE_N_AXES; i++)
318 a->params.min_break[i] = a->min_break[i];
319 a->params.supports_margins = false;
320 a->params.rtl = render_direction_rtl ();
322 if (!update_page_size (a, true))
328 output_driver_destroy (d);
333 parse_page_size (struct driver_option *option)
335 int dim = atol (option->default_value);
337 if (option->value != NULL)
339 if (!strcmp (option->value, "auto"))
347 value = strtol (option->value, &tail, 0);
348 if (dim >= 1 && errno != ERANGE && *tail == '\0')
351 msg (MW, _("%s: %s must be positive integer or `auto'"),
352 option->driver_name, option->name);
356 driver_option_destroy (option);
361 /* Re-calculates the page width based on settings, margins, and, if "auto" is
362 set, the size of the user's terminal window or GUI output window. */
364 update_page_size (struct ascii_driver *a, bool issue_error)
366 enum { MIN_WIDTH = 6, MIN_LENGTH = 6 };
370 a->params.size[H] = a->width = settings_get_viewwidth ();
371 a->params.min_break[H] = a->min_break[H] = a->width / 2;
374 if (a->width < MIN_WIDTH)
378 _("ascii: page must be at least %d characters wide, but "
379 "as configured is only %d characters"),
382 if (a->width < MIN_WIDTH)
383 a->params.size[H] = a->width = MIN_WIDTH;
391 ascii_destroy (struct output_driver *driver)
393 struct ascii_driver *a = ascii_driver_cast (driver);
397 fn_close (a->handle, a->file);
398 fh_unref (a->handle);
399 free (a->chart_file_name);
400 for (i = 0; i < a->allocated_lines; i++)
401 u8_line_destroy (&a->lines[i]);
407 ascii_flush (struct output_driver *driver)
409 struct ascii_driver *a = ascii_driver_cast (driver);
415 ascii_output_lines (struct ascii_driver *a, size_t n_lines)
417 for (size_t y = 0; y < n_lines; y++)
419 if (y < a->allocated_lines)
421 struct u8_line *line = &a->lines[y];
423 while (ds_chomp_byte (&line->s, ' '))
425 fwrite (ds_data (&line->s), 1, ds_length (&line->s), a->file);
426 u8_line_clear (&a->lines[y]);
428 putc ('\n', a->file);
433 ascii_output_table_item (struct ascii_driver *a,
434 const struct table_item *table_item)
436 struct render_pager *p;
438 update_page_size (a, false);
441 putc ('\n', a->file);
442 else if (!ascii_open_page (a))
445 p = render_pager_create (&a->params, table_item);
446 for (int i = 0; render_pager_has_next (p); i++)
449 putc ('\n', a->file);
450 ascii_output_lines (a, render_pager_draw_next (p, INT_MAX));
452 render_pager_destroy (p);
456 ascii_output_table_item_unref (struct ascii_driver *a,
457 struct table_item *table_item)
459 ascii_output_table_item (a, table_item);
460 table_item_unref (table_item);
464 ascii_output_text (struct ascii_driver *a, const char *text)
466 struct pivot_table *pt = pivot_table_create_for_text (
467 NULL, pivot_value_new_user_text (text, -1));
468 ascii_output_table_item_unref (a, table_item_create (pt));
472 ascii_submit (struct output_driver *driver,
473 const struct output_item *output_item)
475 struct ascii_driver *a = ascii_driver_cast (driver);
480 if (is_table_item (output_item))
481 ascii_output_table_item (a, to_table_item (output_item));
483 else if (is_chart_item (output_item) && a->chart_file_name != NULL)
485 struct chart_item *chart_item = to_chart_item (output_item);
488 file_name = xr_draw_png_chart (chart_item, a->chart_file_name,
492 if (file_name != NULL)
494 struct text_item *text_item;
496 text_item = text_item_create_format (
497 TEXT_ITEM_LOG, _("See %s for a chart."), file_name);
499 ascii_submit (driver, &text_item->output_item);
500 text_item_unref (text_item);
504 #endif /* HAVE_CAIRO */
505 else if (is_text_item (output_item))
507 const struct text_item *text_item = to_text_item (output_item);
508 enum text_item_type type = text_item_get_type (text_item);
510 if (type != TEXT_ITEM_PAGE_TITLE && type != TEXT_ITEM_EJECT_PAGE)
511 ascii_output_table_item_unref (
512 a, text_item_to_table_item (text_item_ref (text_item)));
514 else if (is_message_item (output_item))
516 const struct message_item *message_item = to_message_item (output_item);
517 char *s = msg_to_string (message_item_get_msg (message_item));
518 ascii_output_text (a, s);
523 const struct output_driver_factory txt_driver_factory =
524 { "txt", "-", ascii_create };
525 const struct output_driver_factory list_driver_factory =
526 { "list", "-", ascii_create };
528 static const struct output_driver_class ascii_driver_class =
536 static char *ascii_reserve (struct ascii_driver *, int y, int x0, int x1,
538 static void ascii_layout_cell (struct ascii_driver *,
539 const struct table_cell *,
540 int bb[TABLE_N_AXES][2],
541 int clip[TABLE_N_AXES][2],
542 int *width, int *height);
545 ascii_draw_line (void *a_, int bb[TABLE_N_AXES][2],
546 enum render_line_style styles[TABLE_N_AXES][2],
547 struct cell_color colors[TABLE_N_AXES][2] UNUSED)
549 struct ascii_driver *a = a_;
556 /* Clip to the page. */
557 x0 = MAX (bb[H][0], 0);
558 y0 = MAX (bb[V][0], 0);
559 x1 = MIN (bb[H][1], a->width);
561 if (x1 <= 0 || y1 <= 0 || x0 >= a->width)
565 uc = a->box[make_box_index (styles[V][0], styles[V][1],
566 styles[H][0], styles[H][1])];
567 mblen = u8_uctomb (CHAR_CAST (uint8_t *, mbchar), uc, 6);
568 for (y = y0; y < y1; y++)
570 char *p = ascii_reserve (a, y, x0, x1, mblen * (x1 - x0));
571 for (x = x0; x < x1; x++)
573 memcpy (p, mbchar, mblen);
580 ascii_measure_cell_width (void *a_, const struct table_cell *cell,
581 int *min_width, int *max_width)
583 struct ascii_driver *a = a_;
584 int bb[TABLE_N_AXES][2];
585 int clip[TABLE_N_AXES][2];
592 clip[H][0] = clip[H][1] = clip[V][0] = clip[V][1] = 0;
593 ascii_layout_cell (a, cell, bb, clip, max_width, &h);
595 if (cell->n_footnotes || strchr (cell->text, ' '))
598 ascii_layout_cell (a, cell, bb, clip, min_width, &h);
601 *min_width = *max_width;
605 ascii_measure_cell_height (void *a_, const struct table_cell *cell, int width)
607 struct ascii_driver *a = a_;
608 int bb[TABLE_N_AXES][2];
609 int clip[TABLE_N_AXES][2];
616 clip[H][0] = clip[H][1] = clip[V][0] = clip[V][1] = 0;
617 ascii_layout_cell (a, cell, bb, clip, &w, &h);
622 ascii_draw_cell (void *a_, const struct table_cell *cell, int color_idx UNUSED,
623 int bb[TABLE_N_AXES][2],
624 int spill[TABLE_N_AXES][2] UNUSED,
625 int clip[TABLE_N_AXES][2])
627 struct ascii_driver *a = a_;
630 ascii_layout_cell (a, cell, bb, clip, &w, &h);
634 ascii_reserve (struct ascii_driver *a, int y, int x0, int x1, int n)
636 if (y >= a->allocated_lines)
638 size_t new_alloc = MAX (25, a->allocated_lines);
639 while (new_alloc <= y)
640 new_alloc = xtimes (new_alloc, 2);
641 a->lines = xnrealloc (a->lines, new_alloc, sizeof *a->lines);
642 for (size_t i = a->allocated_lines; i < new_alloc; i++)
643 u8_line_init (&a->lines[i]);
644 a->allocated_lines = new_alloc;
646 return u8_line_reserve (&a->lines[y], x0, x1, n);
650 text_draw (struct ascii_driver *a, enum table_halign halign, int options,
651 bool bold, bool underline,
652 int bb[TABLE_N_AXES][2], int clip[TABLE_N_AXES][2],
653 int y, const uint8_t *string, int n, size_t width)
655 int x0 = MAX (0, clip[H][0]);
656 int y0 = MAX (0, clip[V][0]);
657 int x1 = MIN (a->width, clip[H][1]);
661 if (y < y0 || y >= y1)
664 switch (table_halign_interpret (halign, options & TAB_NUMERIC))
666 case TABLE_HALIGN_LEFT:
669 case TABLE_HALIGN_CENTER:
670 x = (bb[H][0] + bb[H][1] - width + 1) / 2;
672 case TABLE_HALIGN_RIGHT:
673 case TABLE_HALIGN_DECIMAL:
674 x = bb[H][1] - width;
690 mblen = u8_mbtouc (&uc, string, n);
695 w = uc_width (uc, "UTF-8");
710 for (ofs = 0; ofs < n; )
716 mblen = u8_mbtouc (&uc, string + ofs, n - ofs);
718 w = uc_width (uc, "UTF-8");
721 if (width + w > x1 - x)
732 if (!a->emphasis || (!bold && !underline))
733 memcpy (ascii_reserve (a, y, x, x + width, n), string, n);
741 /* First figure out how many bytes need to be inserted. */
743 for (ofs = 0; ofs < n; ofs += mblen)
748 mblen = u8_mbtouc (&uc, string + ofs, n - ofs);
749 w = uc_width (uc, "UTF-8");
760 /* Then insert them. */
761 out = ascii_reserve (a, y, x, x + width, n_out);
762 for (ofs = 0; ofs < n; ofs += mblen)
767 mblen = u8_mbtouc (&uc, string + ofs, n - ofs);
768 w = uc_width (uc, "UTF-8");
774 out = mempcpy (out, string + ofs, mblen);
783 out = mempcpy (out, string + ofs, mblen);
789 add_footnote_markers (const char *text, const struct table_cell *cell)
791 struct string s = DS_EMPTY_INITIALIZER;
792 ds_put_cstr (&s, text);
793 for (size_t i = 0; i < cell->n_footnotes; i++)
794 ds_put_format (&s, "[%s]", cell->footnotes[i]->marker);
795 return ds_steal_cstr (&s);
799 ascii_layout_cell (struct ascii_driver *a, const struct table_cell *cell,
800 int bb[TABLE_N_AXES][2], int clip[TABLE_N_AXES][2],
801 int *widthp, int *heightp)
806 /* Get the basic textual contents. */
807 const char *plain_text = (cell->options & TAB_MARKUP
808 ? output_get_text_from_markup (cell->text)
811 /* Append footnote markers if any. */
813 if (cell->n_footnotes)
815 text = add_footnote_markers (plain_text, cell);
816 if (plain_text != cell->text)
817 free (CONST_CAST (char *, plain_text));
822 /* Calculate length; if it's zero, then there's nothing to do. */
823 size_t length = strlen (text);
826 if (text != cell->text)
827 free (CONST_CAST (char *, text));
831 char *breaks = xmalloc (length + 1);
832 u8_possible_linebreaks (CHAR_CAST (const uint8_t *, text), length,
834 breaks[length] = (breaks[length - 1] == UC_BREAK_MANDATORY
835 ? UC_BREAK_PROHIBITED : UC_BREAK_POSSIBLE);
838 int bb_width = bb[H][1] - bb[H][0];
839 for (int y = bb[V][0]; y < bb[V][1] && pos < length; y++)
841 const uint8_t *line = CHAR_CAST (const uint8_t *, text + pos);
842 const char *b = breaks + pos;
843 size_t n = length - pos;
845 size_t last_break_ofs = 0;
846 int last_break_width = 0;
851 for (ofs = 0; ofs < n; )
857 mblen = u8_mbtouc (&uc, line + ofs, n - ofs);
858 if (b[ofs] == UC_BREAK_MANDATORY)
860 else if (b[ofs] == UC_BREAK_POSSIBLE)
862 last_break_ofs = ofs;
863 last_break_width = width;
866 w = uc_width (uc, "UTF-8");
869 if (width + w > bb_width)
871 if (isspace (line[ofs]))
873 else if (last_break_ofs != 0)
875 ofs = last_break_ofs;
876 width = last_break_width;
885 /* Trim any trailing spaces off the end of the text to be drawn. */
886 for (graph_ofs = ofs; graph_ofs > 0; graph_ofs--)
887 if (!isspace (line[graph_ofs - 1]))
889 width -= ofs - graph_ofs;
892 text_draw (a, cell->style->cell_style.halign, cell->options,
893 cell->style->font_style.bold,
894 cell->style->font_style.underline,
895 bb, clip, y, line, graph_ofs, width);
897 /* If a new-line ended the line, just skip the new-line. Otherwise, skip
898 past any spaces past the end of the line (but not past a new-line). */
899 if (b[ofs] == UC_BREAK_MANDATORY)
902 while (ofs < n && isspace (line[ofs]) && b[ofs] != UC_BREAK_MANDATORY)
912 if (text != cell->text)
913 free (CONST_CAST (char *, text));
917 ascii_test_write (struct output_driver *driver,
918 const char *s, int x, int y, bool bold, bool underline)
920 struct ascii_driver *a = ascii_driver_cast (driver);
921 int bb[TABLE_N_AXES][2];
924 if (a->file == NULL && !ascii_open_page (a))
927 struct area_style style = {
928 .cell_style.halign = TABLE_HALIGN_LEFT,
929 .font_style.bold = bold,
930 .font_style.underline = underline,
932 struct table_cell cell = {
933 .text = CONST_CAST (char *, s),
937 bb[TABLE_HORZ][0] = x;
938 bb[TABLE_HORZ][1] = a->width;
939 bb[TABLE_VERT][0] = y;
940 bb[TABLE_VERT][1] = INT_MAX;
942 ascii_layout_cell (a, &cell, bb, bb, &width, &height);
946 ascii_test_set_length (struct output_driver *driver, int y, int length)
948 struct ascii_driver *a = ascii_driver_cast (driver);
950 if (a->file == NULL && !ascii_open_page (a))
955 u8_line_set_length (&a->lines[y], length);
959 ascii_test_flush (struct output_driver *driver)
961 struct ascii_driver *a = ascii_driver_cast (driver);
963 for (size_t i = a->allocated_lines; i-- > 0; )
964 if (a->lines[i].width)
966 ascii_output_lines (a, i + 1);
971 /* ascii_close_page () and support routines. */
973 #if HAVE_DECL_SIGWINCH
974 static struct ascii_driver *the_driver;
977 winch_handler (int signum UNUSED)
979 update_page_size (the_driver, false);
984 ascii_open_page (struct ascii_driver *a)
991 a->file = fn_open (a->handle, a->append ? "a" : "w");
994 if ( isatty (fileno (a->file)))
996 #if HAVE_DECL_SIGWINCH
997 struct sigaction action;
998 sigemptyset (&action.sa_mask);
1000 action.sa_handler = winch_handler;
1002 sigaction (SIGWINCH, &action, NULL);
1004 a->auto_width = true;
1009 msg_error (errno, _("ascii: opening output file `%s'"),
1010 fh_get_file_name (a->handle));