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/render.h"
48 #include "output/table-item.h"
49 #include "output/text-item.h"
51 #include "gl/minmax.h"
52 #include "gl/xalloc.h"
56 #define _(msgid) gettext (msgid)
58 /* This file uses TABLE_HORZ and TABLE_VERT enough to warrant abbreviating. */
70 #define N_BOX (ASCII_N_LINES * ASCII_N_LINES \
71 * ASCII_N_LINES * ASCII_N_LINES)
73 static const ucs4_t ascii_box_chars[N_BOX] =
104 static const ucs4_t unicode_box_chars[N_BOX] =
106 0x0020, 0x2575, 0x2551,
107 0x2574, 0x256f, 0x255c,
108 0x2550, 0x255b, 0x255d,
109 0x2577, 0x2502, 0x2551,
110 0x256e, 0x2524, 0x2562,
111 0x2555, 0x2561, 0x2563,
112 0x2551, 0x2551, 0x2551,
113 0x2556, 0x2562, 0x2562,
114 0x2557, 0x2563, 0x2563,
115 0x2576, 0x2570, 0x2559,
116 0x2500, 0x2534, 0x2568,
117 0x2550, 0x2567, 0x2569,
118 0x256d, 0x251c, 0x255f,
119 0x252c, 0x253c, 0x256a,
120 0x2564, 0x256a, 0x256c,
121 0x2553, 0x255f, 0x255f,
122 0x2565, 0x256b, 0x256b,
123 0x2566, 0x256c, 0x256c,
124 0x2550, 0x2558, 0x255a,
125 0x2550, 0x2567, 0x2569,
126 0x2550, 0x2567, 0x2569,
127 0x2552, 0x255e, 0x2560,
128 0x2564, 0x256a, 0x256c,
129 0x2564, 0x256a, 0x256c,
130 0x2554, 0x2560, 0x2560,
131 0x2560, 0x256c, 0x256c,
132 0x2566, 0x256c, 0x256c,
136 ascii_line_from_render_line (int render_line)
140 case RENDER_LINE_NONE:
141 return ASCII_LINE_NONE;
143 case RENDER_LINE_SINGLE:
144 case RENDER_LINE_DASHED:
145 case RENDER_LINE_THICK:
146 case RENDER_LINE_THIN:
147 return ASCII_LINE_SINGLE;
149 case RENDER_LINE_DOUBLE:
150 return ASCII_LINE_DOUBLE;
153 return ASCII_LINE_NONE;
159 make_box_index (int left_, int right_, int top_, int bottom_)
161 bool rtl = render_direction_rtl ();
162 int left = ascii_line_from_render_line (rtl ? right_ : left_);
163 int right = ascii_line_from_render_line (rtl ? left_ : right_);
164 int top = ascii_line_from_render_line (top_);
165 int bottom = ascii_line_from_render_line (bottom_);
168 idx = idx * ASCII_N_LINES + bottom;
169 idx = idx * ASCII_N_LINES + left;
170 idx = idx * ASCII_N_LINES + top;
174 /* ASCII output driver. */
177 struct output_driver driver;
179 /* User parameters. */
180 bool append; /* Append if output file already exists? */
181 bool emphasis; /* Enable bold and underline in output? */
182 char *chart_file_name; /* Name of files used for charts. */
185 /* Colours for charts */
186 struct cell_color fg;
187 struct cell_color bg;
190 int width; /* Page width. */
191 bool auto_width; /* Use viewwidth as page width? */
193 int min_break[TABLE_N_AXES]; /* Min cell size to break across pages. */
195 const ucs4_t *box; /* Line & box drawing characters. */
197 /* Internal state. */
198 struct file_handle *handle;
199 FILE *file; /* Output file. */
200 bool error; /* Output error? */
201 struct u8_line *lines; /* Page content. */
202 int allocated_lines; /* Number of lines allocated. */
203 int chart_cnt; /* Number of charts so far. */
204 struct render_params params;
207 static const struct output_driver_class ascii_driver_class;
209 static void ascii_submit (struct output_driver *, const struct output_item *);
211 static bool update_page_size (struct ascii_driver *, bool issue_error);
212 static int parse_page_size (struct driver_option *);
214 static bool ascii_open_page (struct ascii_driver *);
216 static void ascii_draw_line (void *, int bb[TABLE_N_AXES][2],
217 enum render_line_style styles[TABLE_N_AXES][2],
218 struct cell_color colors[TABLE_N_AXES][2]);
219 static void ascii_measure_cell_width (void *, const struct table_cell *,
221 static int ascii_measure_cell_height (void *, const struct table_cell *,
223 static void ascii_draw_cell (void *, const struct table_cell *, int color_idx,
224 int bb[TABLE_N_AXES][2],
225 int spill[TABLE_N_AXES][2],
226 int clip[TABLE_N_AXES][2]);
228 static struct ascii_driver *
229 ascii_driver_cast (struct output_driver *driver)
231 assert (driver->class == &ascii_driver_class);
232 return UP_CAST (driver, struct ascii_driver, driver);
235 static struct driver_option *
236 opt (struct output_driver *d, struct string_map *options, const char *key,
237 const char *default_value)
239 return driver_option_get (d, options, key, default_value);
242 /* Return true iff the terminal appears to be an xterm with
243 UTF-8 capabilities */
245 term_is_utf8_xterm (void)
247 const char *term = getenv ("TERM");
248 const char *xterm_locale = getenv ("XTERM_LOCAL");
249 return (term && xterm_locale
250 && !strcmp (term, "xterm")
251 && (strcasestr (xterm_locale, "utf8")
252 || strcasestr (xterm_locale, "utf-8")));
255 static struct output_driver *
256 ascii_create (struct file_handle *fh, enum settings_output_devices device_type,
257 struct string_map *o)
259 enum { BOX_ASCII, BOX_UNICODE } box;
260 int min_break[TABLE_N_AXES];
261 struct output_driver *d;
262 struct ascii_driver *a;
264 a = xzalloc (sizeof *a);
266 output_driver_init (&a->driver, &ascii_driver_class, fh_get_file_name (fh), device_type);
267 a->append = parse_boolean (opt (d, o, "append", "false"));
268 a->emphasis = parse_boolean (opt (d, o, "emphasis", "false"));
270 a->chart_file_name = parse_chart_file_name (opt (d, o, "charts", fh_get_file_name (fh)));
273 min_break[H] = parse_int (opt (d, o, "min-hbreak", "-1"), -1, INT_MAX);
275 a->width = parse_page_size (opt (d, o, "width", "79"));
276 a->auto_width = a->width < 0;
277 a->min_break[H] = min_break[H] >= 0 ? min_break[H] : a->width / 2;
279 parse_color (d, o, "background-color", "#FFFFFFFFFFFF", &a->bg);
280 parse_color (d, o, "foreground-color", "#000000000000", &a->fg);
283 const char *default_box = (!strcmp (fh_get_file_name (fh), "-")
284 && isatty (STDOUT_FILENO)
285 && (!strcmp (locale_charset (), "UTF-8")
286 || term_is_utf8_xterm ())
287 ? "unicode" : "ascii");
288 box = parse_enum (opt (d, o, "box", default_box),
290 "unicode", BOX_UNICODE,
292 a->box = box == BOX_ASCII ? ascii_box_chars : unicode_box_chars;
297 a->allocated_lines = 0;
300 a->params.draw_line = ascii_draw_line;
301 a->params.measure_cell_width = ascii_measure_cell_width;
302 a->params.measure_cell_height = ascii_measure_cell_height;
303 a->params.adjust_break = NULL;
304 a->params.draw_cell = ascii_draw_cell;
306 a->params.size[H] = a->width;
307 a->params.size[V] = INT_MAX;
308 a->params.font_size[H] = 1;
309 a->params.font_size[V] = 1;
310 for (int i = 0; i < RENDER_N_LINES; i++)
312 int width = i == RENDER_LINE_NONE ? 0 : 1;
313 a->params.line_widths[H][i] = width;
314 a->params.line_widths[V][i] = width;
316 for (int i = 0; i < TABLE_N_AXES; i++)
317 a->params.min_break[i] = a->min_break[i];
318 a->params.supports_margins = false;
319 a->params.rtl = render_direction_rtl ();
321 if (!update_page_size (a, true))
327 output_driver_destroy (d);
332 parse_page_size (struct driver_option *option)
334 int dim = atol (option->default_value);
336 if (option->value != NULL)
338 if (!strcmp (option->value, "auto"))
346 value = strtol (option->value, &tail, 0);
347 if (dim >= 1 && errno != ERANGE && *tail == '\0')
350 msg (MW, _("%s: %s must be positive integer or `auto'"),
351 option->driver_name, option->name);
355 driver_option_destroy (option);
360 /* Re-calculates the page width based on settings, margins, and, if "auto" is
361 set, the size of the user's terminal window or GUI output window. */
363 update_page_size (struct ascii_driver *a, bool issue_error)
365 enum { MIN_WIDTH = 6, MIN_LENGTH = 6 };
369 a->params.size[H] = a->width = settings_get_viewwidth ();
370 a->params.min_break[H] = a->min_break[H] = a->width / 2;
373 if (a->width < MIN_WIDTH)
377 _("ascii: page must be at least %d characters wide, but "
378 "as configured is only %d characters"),
381 if (a->width < MIN_WIDTH)
382 a->params.size[H] = a->width = MIN_WIDTH;
390 ascii_destroy (struct output_driver *driver)
392 struct ascii_driver *a = ascii_driver_cast (driver);
396 fn_close (a->handle, a->file);
397 fh_unref (a->handle);
398 free (a->chart_file_name);
399 for (i = 0; i < a->allocated_lines; i++)
400 u8_line_destroy (&a->lines[i]);
406 ascii_flush (struct output_driver *driver)
408 struct ascii_driver *a = ascii_driver_cast (driver);
414 ascii_output_lines (struct ascii_driver *a, size_t n_lines)
416 for (size_t y = 0; y < n_lines; y++)
418 if (y < a->allocated_lines)
420 struct u8_line *line = &a->lines[y];
422 while (ds_chomp_byte (&line->s, ' '))
424 fwrite (ds_data (&line->s), 1, ds_length (&line->s), a->file);
425 u8_line_clear (&a->lines[y]);
427 putc ('\n', a->file);
432 ascii_output_table_item (struct ascii_driver *a,
433 const struct table_item *table_item)
435 struct render_pager *p;
437 update_page_size (a, false);
440 putc ('\n', a->file);
441 else if (!ascii_open_page (a))
444 p = render_pager_create (&a->params, table_item);
445 for (int i = 0; render_pager_has_next (p); i++)
448 putc ('\n', a->file);
449 ascii_output_lines (a, render_pager_draw_next (p, INT_MAX));
451 render_pager_destroy (p);
455 ascii_output_table_item_unref (struct ascii_driver *a,
456 struct table_item *table_item)
458 ascii_output_table_item (a, table_item);
459 table_item_unref (table_item);
463 ascii_output_text (struct ascii_driver *a, const char *text)
465 ascii_output_table_item_unref (
466 a, table_item_create (table_from_string (text), NULL, NULL));
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));