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 struct u8_line *line = &a->lines[y];
421 while (ds_chomp_byte (&line->s, ' '))
423 fwrite (ds_data (&line->s), 1, ds_length (&line->s), a->file);
424 putc ('\n', a->file);
426 u8_line_clear (&a->lines[y]);
431 ascii_output_table_item (struct ascii_driver *a,
432 const struct table_item *table_item)
434 struct render_pager *p;
436 update_page_size (a, false);
439 putc ('\n', a->file);
440 else if (!ascii_open_page (a))
443 p = render_pager_create (&a->params, table_item);
444 for (int i = 0; render_pager_has_next (p); i++)
447 putc ('\n', a->file);
448 ascii_output_lines (a, render_pager_draw_next (p, INT_MAX));
450 render_pager_destroy (p);
454 ascii_output_table_item_unref (struct ascii_driver *a,
455 struct table_item *table_item)
457 ascii_output_table_item (a, table_item);
458 table_item_unref (table_item);
462 ascii_output_text (struct ascii_driver *a, const char *text)
464 struct pivot_table *pt = pivot_table_create_for_text (
465 NULL, pivot_value_new_user_text (text, -1));
466 ascii_output_table_item_unref (a, table_item_create (pt));
470 ascii_submit (struct output_driver *driver,
471 const struct output_item *output_item)
473 struct ascii_driver *a = ascii_driver_cast (driver);
478 if (is_table_item (output_item))
479 ascii_output_table_item (a, to_table_item (output_item));
481 else if (is_chart_item (output_item) && a->chart_file_name != NULL)
483 struct chart_item *chart_item = to_chart_item (output_item);
486 file_name = xr_draw_png_chart (chart_item, a->chart_file_name,
490 if (file_name != NULL)
492 struct text_item *text_item;
494 text_item = text_item_create_format (
495 TEXT_ITEM_LOG, _("See %s for a chart."), file_name);
497 ascii_submit (driver, &text_item->output_item);
498 text_item_unref (text_item);
502 #endif /* HAVE_CAIRO */
503 else if (is_text_item (output_item))
505 const struct text_item *text_item = to_text_item (output_item);
506 enum text_item_type type = text_item_get_type (text_item);
508 if (type != TEXT_ITEM_PAGE_TITLE && type != TEXT_ITEM_EJECT_PAGE)
509 ascii_output_table_item_unref (
510 a, text_item_to_table_item (text_item_ref (text_item)));
512 else if (is_message_item (output_item))
514 const struct message_item *message_item = to_message_item (output_item);
515 char *s = msg_to_string (message_item_get_msg (message_item));
516 ascii_output_text (a, s);
521 const struct output_driver_factory txt_driver_factory =
522 { "txt", "-", ascii_create };
523 const struct output_driver_factory list_driver_factory =
524 { "list", "-", ascii_create };
526 static const struct output_driver_class ascii_driver_class =
534 static char *ascii_reserve (struct ascii_driver *, int y, int x0, int x1,
536 static void ascii_layout_cell (struct ascii_driver *,
537 const struct table_cell *,
538 int bb[TABLE_N_AXES][2],
539 int clip[TABLE_N_AXES][2],
540 int *width, int *height);
543 ascii_draw_line (void *a_, int bb[TABLE_N_AXES][2],
544 enum render_line_style styles[TABLE_N_AXES][2],
545 struct cell_color colors[TABLE_N_AXES][2] UNUSED)
547 struct ascii_driver *a = a_;
554 /* Clip to the page. */
555 x0 = MAX (bb[H][0], 0);
556 y0 = MAX (bb[V][0], 0);
557 x1 = MIN (bb[H][1], a->width);
559 if (x1 <= 0 || y1 <= 0 || x0 >= a->width)
563 uc = a->box[make_box_index (styles[V][0], styles[V][1],
564 styles[H][0], styles[H][1])];
565 mblen = u8_uctomb (CHAR_CAST (uint8_t *, mbchar), uc, 6);
566 for (y = y0; y < y1; y++)
568 char *p = ascii_reserve (a, y, x0, x1, mblen * (x1 - x0));
569 for (x = x0; x < x1; x++)
571 memcpy (p, mbchar, mblen);
578 ascii_measure_cell_width (void *a_, const struct table_cell *cell,
579 int *min_width, int *max_width)
581 struct ascii_driver *a = a_;
582 int bb[TABLE_N_AXES][2];
583 int clip[TABLE_N_AXES][2];
590 clip[H][0] = clip[H][1] = clip[V][0] = clip[V][1] = 0;
591 ascii_layout_cell (a, cell, bb, clip, max_width, &h);
593 if (cell->n_footnotes || strchr (cell->text, ' '))
596 ascii_layout_cell (a, cell, bb, clip, min_width, &h);
599 *min_width = *max_width;
603 ascii_measure_cell_height (void *a_, const struct table_cell *cell, int width)
605 struct ascii_driver *a = a_;
606 int bb[TABLE_N_AXES][2];
607 int clip[TABLE_N_AXES][2];
614 clip[H][0] = clip[H][1] = clip[V][0] = clip[V][1] = 0;
615 ascii_layout_cell (a, cell, bb, clip, &w, &h);
620 ascii_draw_cell (void *a_, const struct table_cell *cell, int color_idx UNUSED,
621 int bb[TABLE_N_AXES][2],
622 int spill[TABLE_N_AXES][2] UNUSED,
623 int clip[TABLE_N_AXES][2])
625 struct ascii_driver *a = a_;
628 ascii_layout_cell (a, cell, bb, clip, &w, &h);
632 ascii_reserve (struct ascii_driver *a, int y, int x0, int x1, int n)
634 if (y >= a->allocated_lines)
636 size_t new_alloc = MAX (25, a->allocated_lines);
637 while (new_alloc <= y)
638 new_alloc = xtimes (new_alloc, 2);
639 a->lines = xnrealloc (a->lines, new_alloc, sizeof *a->lines);
640 for (size_t i = a->allocated_lines; i < new_alloc; i++)
641 u8_line_init (&a->lines[i]);
642 a->allocated_lines = new_alloc;
644 return u8_line_reserve (&a->lines[y], x0, x1, n);
648 text_draw (struct ascii_driver *a, enum table_halign halign, int options,
649 bool bold, bool underline,
650 int bb[TABLE_N_AXES][2], int clip[TABLE_N_AXES][2],
651 int y, const uint8_t *string, int n, size_t width)
653 int x0 = MAX (0, clip[H][0]);
654 int y0 = MAX (0, clip[V][0]);
655 int x1 = MIN (a->width, clip[H][1]);
659 if (y < y0 || y >= y1)
662 switch (table_halign_interpret (halign, options & TAB_NUMERIC))
664 case TABLE_HALIGN_LEFT:
667 case TABLE_HALIGN_CENTER:
668 x = (bb[H][0] + bb[H][1] - width + 1) / 2;
670 case TABLE_HALIGN_RIGHT:
671 case TABLE_HALIGN_DECIMAL:
672 x = bb[H][1] - width;
688 mblen = u8_mbtouc (&uc, string, n);
693 w = uc_width (uc, "UTF-8");
708 for (ofs = 0; ofs < n; )
714 mblen = u8_mbtouc (&uc, string + ofs, n - ofs);
716 w = uc_width (uc, "UTF-8");
719 if (width + w > x1 - x)
730 if (!a->emphasis || (!bold && !underline))
731 memcpy (ascii_reserve (a, y, x, x + width, n), string, n);
739 /* First figure out how many bytes need to be inserted. */
741 for (ofs = 0; ofs < n; ofs += mblen)
746 mblen = u8_mbtouc (&uc, string + ofs, n - ofs);
747 w = uc_width (uc, "UTF-8");
758 /* Then insert them. */
759 out = ascii_reserve (a, y, x, x + width, n_out);
760 for (ofs = 0; ofs < n; ofs += mblen)
765 mblen = u8_mbtouc (&uc, string + ofs, n - ofs);
766 w = uc_width (uc, "UTF-8");
772 out = mempcpy (out, string + ofs, mblen);
781 out = mempcpy (out, string + ofs, mblen);
787 add_footnote_markers (const char *text, const struct table_cell *cell)
789 struct string s = DS_EMPTY_INITIALIZER;
790 ds_put_cstr (&s, text);
791 for (size_t i = 0; i < cell->n_footnotes; i++)
792 ds_put_format (&s, "[%s]", cell->footnotes[i]->marker);
793 return ds_steal_cstr (&s);
797 ascii_layout_cell (struct ascii_driver *a, const struct table_cell *cell,
798 int bb[TABLE_N_AXES][2], int clip[TABLE_N_AXES][2],
799 int *widthp, int *heightp)
804 /* Get the basic textual contents. */
805 const char *plain_text = (cell->options & TAB_MARKUP
806 ? output_get_text_from_markup (cell->text)
809 /* Append footnote markers if any. */
811 if (cell->n_footnotes)
813 text = add_footnote_markers (plain_text, cell);
814 if (plain_text != cell->text)
815 free (CONST_CAST (char *, plain_text));
820 /* Calculate length; if it's zero, then there's nothing to do. */
821 size_t length = strlen (text);
824 if (text != cell->text)
825 free (CONST_CAST (char *, text));
829 char *breaks = xmalloc (length + 1);
830 u8_possible_linebreaks (CHAR_CAST (const uint8_t *, text), length,
832 breaks[length] = (breaks[length - 1] == UC_BREAK_MANDATORY
833 ? UC_BREAK_PROHIBITED : UC_BREAK_POSSIBLE);
836 int bb_width = bb[H][1] - bb[H][0];
837 for (int y = bb[V][0]; y < bb[V][1] && pos < length; y++)
839 const uint8_t *line = CHAR_CAST (const uint8_t *, text + pos);
840 const char *b = breaks + pos;
841 size_t n = length - pos;
843 size_t last_break_ofs = 0;
844 int last_break_width = 0;
849 for (ofs = 0; ofs < n; )
855 mblen = u8_mbtouc (&uc, line + ofs, n - ofs);
856 if (b[ofs] == UC_BREAK_MANDATORY)
858 else if (b[ofs] == UC_BREAK_POSSIBLE)
860 last_break_ofs = ofs;
861 last_break_width = width;
864 w = uc_width (uc, "UTF-8");
867 if (width + w > bb_width)
869 if (isspace (line[ofs]))
871 else if (last_break_ofs != 0)
873 ofs = last_break_ofs;
874 width = last_break_width;
883 /* Trim any trailing spaces off the end of the text to be drawn. */
884 for (graph_ofs = ofs; graph_ofs > 0; graph_ofs--)
885 if (!isspace (line[graph_ofs - 1]))
887 width -= ofs - graph_ofs;
890 text_draw (a, cell->style->cell_style.halign, cell->options,
891 cell->style->font_style.bold,
892 cell->style->font_style.underline,
893 bb, clip, y, line, graph_ofs, width);
895 /* If a new-line ended the line, just skip the new-line. Otherwise, skip
896 past any spaces past the end of the line (but not past a new-line). */
897 if (b[ofs] == UC_BREAK_MANDATORY)
900 while (ofs < n && isspace (line[ofs]) && b[ofs] != UC_BREAK_MANDATORY)
910 if (text != cell->text)
911 free (CONST_CAST (char *, text));
915 ascii_test_write (struct output_driver *driver,
916 const char *s, int x, int y, bool bold, bool underline)
918 struct ascii_driver *a = ascii_driver_cast (driver);
919 int bb[TABLE_N_AXES][2];
922 if (a->file == NULL && !ascii_open_page (a))
925 struct area_style style = {
926 .cell_style.halign = TABLE_HALIGN_LEFT,
927 .font_style.bold = bold,
928 .font_style.underline = underline,
930 struct table_cell cell = {
931 .text = CONST_CAST (char *, s),
935 bb[TABLE_HORZ][0] = x;
936 bb[TABLE_HORZ][1] = a->width;
937 bb[TABLE_VERT][0] = y;
938 bb[TABLE_VERT][1] = INT_MAX;
940 ascii_layout_cell (a, &cell, bb, bb, &width, &height);
944 ascii_test_set_length (struct output_driver *driver, int y, int length)
946 struct ascii_driver *a = ascii_driver_cast (driver);
948 if (a->file == NULL && !ascii_open_page (a))
953 u8_line_set_length (&a->lines[y], length);
957 ascii_test_flush (struct output_driver *driver)
959 struct ascii_driver *a = ascii_driver_cast (driver);
961 for (size_t i = a->allocated_lines; i-- > 0; )
962 if (a->lines[i].width)
964 ascii_output_lines (a, i + 1);
969 /* ascii_close_page () and support routines. */
971 #if HAVE_DECL_SIGWINCH
972 static struct ascii_driver *the_driver;
975 winch_handler (int signum UNUSED)
977 update_page_size (the_driver, false);
982 ascii_open_page (struct ascii_driver *a)
989 a->file = fn_open (a->handle, a->append ? "a" : "w");
992 if ( isatty (fileno (a->file)))
994 #if HAVE_DECL_SIGWINCH
995 struct sigaction action;
996 sigemptyset (&action.sa_mask);
998 action.sa_handler = winch_handler;
1000 sigaction (SIGWINCH, &action, NULL);
1002 a->auto_width = true;
1007 msg_error (errno, _("ascii: opening output file `%s'"),
1008 fh_get_file_name (a->handle));