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 struct u8_line *line = &a->lines[y];
420 while (ds_chomp_byte (&line->s, ' '))
422 fwrite (ds_data (&line->s), 1, ds_length (&line->s), a->file);
423 putc ('\n', a->file);
425 u8_line_clear (&a->lines[y]);
430 ascii_output_table_item (struct ascii_driver *a,
431 const struct table_item *table_item)
433 struct render_pager *p;
435 update_page_size (a, false);
438 putc ('\n', a->file);
439 else if (!ascii_open_page (a))
442 p = render_pager_create (&a->params, table_item);
443 for (int i = 0; render_pager_has_next (p); i++)
446 putc ('\n', a->file);
447 ascii_output_lines (a, render_pager_draw_next (p, INT_MAX));
449 render_pager_destroy (p);
453 ascii_output_table_item_unref (struct ascii_driver *a,
454 struct table_item *table_item)
456 ascii_output_table_item (a, table_item);
457 table_item_unref (table_item);
461 ascii_output_text (struct ascii_driver *a, const char *text)
463 ascii_output_table_item_unref (
464 a, table_item_create (table_from_string (text), NULL, NULL));
468 ascii_submit (struct output_driver *driver,
469 const struct output_item *output_item)
471 struct ascii_driver *a = ascii_driver_cast (driver);
476 if (is_table_item (output_item))
477 ascii_output_table_item (a, to_table_item (output_item));
479 else if (is_chart_item (output_item) && a->chart_file_name != NULL)
481 struct chart_item *chart_item = to_chart_item (output_item);
484 file_name = xr_draw_png_chart (chart_item, a->chart_file_name,
488 if (file_name != NULL)
490 struct text_item *text_item;
492 text_item = text_item_create_format (
493 TEXT_ITEM_LOG, _("See %s for a chart."), file_name);
495 ascii_submit (driver, &text_item->output_item);
496 text_item_unref (text_item);
500 #endif /* HAVE_CAIRO */
501 else if (is_text_item (output_item))
503 const struct text_item *text_item = to_text_item (output_item);
504 enum text_item_type type = text_item_get_type (text_item);
506 if (type != TEXT_ITEM_PAGE_TITLE && type != TEXT_ITEM_EJECT_PAGE)
507 ascii_output_table_item_unref (
508 a, text_item_to_table_item (text_item_ref (text_item)));
510 else if (is_message_item (output_item))
512 const struct message_item *message_item = to_message_item (output_item);
513 char *s = msg_to_string (message_item_get_msg (message_item));
514 ascii_output_text (a, s);
519 const struct output_driver_factory txt_driver_factory =
520 { "txt", "-", ascii_create };
521 const struct output_driver_factory list_driver_factory =
522 { "list", "-", ascii_create };
524 static const struct output_driver_class ascii_driver_class =
532 static char *ascii_reserve (struct ascii_driver *, int y, int x0, int x1,
534 static void ascii_layout_cell (struct ascii_driver *,
535 const struct table_cell *,
536 int bb[TABLE_N_AXES][2],
537 int clip[TABLE_N_AXES][2],
538 int *width, int *height);
541 ascii_draw_line (void *a_, int bb[TABLE_N_AXES][2],
542 enum render_line_style styles[TABLE_N_AXES][2],
543 struct cell_color colors[TABLE_N_AXES][2] UNUSED)
545 struct ascii_driver *a = a_;
552 /* Clip to the page. */
553 x0 = MAX (bb[H][0], 0);
554 y0 = MAX (bb[V][0], 0);
555 x1 = MIN (bb[H][1], a->width);
557 if (x1 <= 0 || y1 <= 0 || x0 >= a->width)
561 uc = a->box[make_box_index (styles[V][0], styles[V][1],
562 styles[H][0], styles[H][1])];
563 mblen = u8_uctomb (CHAR_CAST (uint8_t *, mbchar), uc, 6);
564 for (y = y0; y < y1; y++)
566 char *p = ascii_reserve (a, y, x0, x1, mblen * (x1 - x0));
567 for (x = x0; x < x1; x++)
569 memcpy (p, mbchar, mblen);
576 ascii_measure_cell_width (void *a_, const struct table_cell *cell,
577 int *min_width, int *max_width)
579 struct ascii_driver *a = a_;
580 int bb[TABLE_N_AXES][2];
581 int clip[TABLE_N_AXES][2];
588 clip[H][0] = clip[H][1] = clip[V][0] = clip[V][1] = 0;
589 ascii_layout_cell (a, cell, bb, clip, max_width, &h);
591 if (cell->n_footnotes || strchr (cell->text, ' '))
594 ascii_layout_cell (a, cell, bb, clip, min_width, &h);
597 *min_width = *max_width;
601 ascii_measure_cell_height (void *a_, const struct table_cell *cell, int width)
603 struct ascii_driver *a = a_;
604 int bb[TABLE_N_AXES][2];
605 int clip[TABLE_N_AXES][2];
612 clip[H][0] = clip[H][1] = clip[V][0] = clip[V][1] = 0;
613 ascii_layout_cell (a, cell, bb, clip, &w, &h);
618 ascii_draw_cell (void *a_, const struct table_cell *cell, int color_idx UNUSED,
619 int bb[TABLE_N_AXES][2],
620 int spill[TABLE_N_AXES][2] UNUSED,
621 int clip[TABLE_N_AXES][2])
623 struct ascii_driver *a = a_;
626 ascii_layout_cell (a, cell, bb, clip, &w, &h);
630 ascii_reserve (struct ascii_driver *a, int y, int x0, int x1, int n)
632 if (y >= a->allocated_lines)
634 size_t new_alloc = MAX (25, a->allocated_lines);
635 while (new_alloc <= y)
636 new_alloc = xtimes (new_alloc, 2);
637 a->lines = xnrealloc (a->lines, new_alloc, sizeof *a->lines);
638 for (size_t i = a->allocated_lines; i < new_alloc; i++)
639 u8_line_init (&a->lines[i]);
640 a->allocated_lines = new_alloc;
642 return u8_line_reserve (&a->lines[y], x0, x1, n);
646 text_draw (struct ascii_driver *a, enum table_halign halign, int options,
647 bool bold, bool underline,
648 int bb[TABLE_N_AXES][2], int clip[TABLE_N_AXES][2],
649 int y, const uint8_t *string, int n, size_t width)
651 int x0 = MAX (0, clip[H][0]);
652 int y0 = MAX (0, clip[V][0]);
653 int x1 = MIN (a->width, clip[H][1]);
657 if (y < y0 || y >= y1)
660 switch (table_halign_interpret (halign, options & TAB_NUMERIC))
662 case TABLE_HALIGN_LEFT:
665 case TABLE_HALIGN_CENTER:
666 x = (bb[H][0] + bb[H][1] - width + 1) / 2;
668 case TABLE_HALIGN_RIGHT:
669 case TABLE_HALIGN_DECIMAL:
670 x = bb[H][1] - width;
686 mblen = u8_mbtouc (&uc, string, n);
691 w = uc_width (uc, "UTF-8");
706 for (ofs = 0; ofs < n; )
712 mblen = u8_mbtouc (&uc, string + ofs, n - ofs);
714 w = uc_width (uc, "UTF-8");
717 if (width + w > x1 - x)
728 if (!a->emphasis || (!bold && !underline))
729 memcpy (ascii_reserve (a, y, x, x + width, n), string, n);
737 /* First figure out how many bytes need to be inserted. */
739 for (ofs = 0; ofs < n; ofs += mblen)
744 mblen = u8_mbtouc (&uc, string + ofs, n - ofs);
745 w = uc_width (uc, "UTF-8");
756 /* Then insert them. */
757 out = ascii_reserve (a, y, x, x + width, n_out);
758 for (ofs = 0; ofs < n; ofs += mblen)
763 mblen = u8_mbtouc (&uc, string + ofs, n - ofs);
764 w = uc_width (uc, "UTF-8");
770 out = mempcpy (out, string + ofs, mblen);
779 out = mempcpy (out, string + ofs, mblen);
785 add_footnote_markers (const char *text, const struct table_cell *cell)
787 struct string s = DS_EMPTY_INITIALIZER;
788 ds_put_cstr (&s, text);
789 for (size_t i = 0; i < cell->n_footnotes; i++)
790 ds_put_format (&s, "[%s]", cell->footnotes[i]->marker);
791 return ds_steal_cstr (&s);
795 ascii_layout_cell (struct ascii_driver *a, const struct table_cell *cell,
796 int bb[TABLE_N_AXES][2], int clip[TABLE_N_AXES][2],
797 int *widthp, int *heightp)
802 /* Get the basic textual contents. */
803 const char *plain_text = (cell->options & TAB_MARKUP
804 ? output_get_text_from_markup (cell->text)
807 /* Append footnote markers if any. */
809 if (cell->n_footnotes)
811 text = add_footnote_markers (plain_text, cell);
812 if (plain_text != cell->text)
813 free (CONST_CAST (char *, plain_text));
818 /* Calculate length; if it's zero, then there's nothing to do. */
819 size_t length = strlen (text);
822 if (text != cell->text)
823 free (CONST_CAST (char *, text));
827 char *breaks = xmalloc (length + 1);
828 u8_possible_linebreaks (CHAR_CAST (const uint8_t *, text), length,
830 breaks[length] = (breaks[length - 1] == UC_BREAK_MANDATORY
831 ? UC_BREAK_PROHIBITED : UC_BREAK_POSSIBLE);
834 int bb_width = bb[H][1] - bb[H][0];
835 for (int y = bb[V][0]; y < bb[V][1] && pos < length; y++)
837 const uint8_t *line = CHAR_CAST (const uint8_t *, text + pos);
838 const char *b = breaks + pos;
839 size_t n = length - pos;
841 size_t last_break_ofs = 0;
842 int last_break_width = 0;
847 for (ofs = 0; ofs < n; )
853 mblen = u8_mbtouc (&uc, line + ofs, n - ofs);
854 if (b[ofs] == UC_BREAK_MANDATORY)
856 else if (b[ofs] == UC_BREAK_POSSIBLE)
858 last_break_ofs = ofs;
859 last_break_width = width;
862 w = uc_width (uc, "UTF-8");
865 if (width + w > bb_width)
867 if (isspace (line[ofs]))
869 else if (last_break_ofs != 0)
871 ofs = last_break_ofs;
872 width = last_break_width;
881 /* Trim any trailing spaces off the end of the text to be drawn. */
882 for (graph_ofs = ofs; graph_ofs > 0; graph_ofs--)
883 if (!isspace (line[graph_ofs - 1]))
885 width -= ofs - graph_ofs;
888 text_draw (a, cell->style->cell_style.halign, cell->options,
889 cell->style->font_style.bold,
890 cell->style->font_style.underline,
891 bb, clip, y, line, graph_ofs, width);
893 /* If a new-line ended the line, just skip the new-line. Otherwise, skip
894 past any spaces past the end of the line (but not past a new-line). */
895 if (b[ofs] == UC_BREAK_MANDATORY)
898 while (ofs < n && isspace (line[ofs]) && b[ofs] != UC_BREAK_MANDATORY)
908 if (text != cell->text)
909 free (CONST_CAST (char *, text));
913 ascii_test_write (struct output_driver *driver,
914 const char *s, int x, int y, bool bold, bool underline)
916 struct ascii_driver *a = ascii_driver_cast (driver);
917 int bb[TABLE_N_AXES][2];
920 if (a->file == NULL && !ascii_open_page (a))
923 struct area_style style = {
924 .cell_style.halign = TABLE_HALIGN_LEFT,
925 .font_style.bold = bold,
926 .font_style.underline = underline,
928 struct table_cell cell = {
929 .text = CONST_CAST (char *, s),
933 bb[TABLE_HORZ][0] = x;
934 bb[TABLE_HORZ][1] = a->width;
935 bb[TABLE_VERT][0] = y;
936 bb[TABLE_VERT][1] = INT_MAX;
938 ascii_layout_cell (a, &cell, bb, bb, &width, &height);
942 ascii_test_set_length (struct output_driver *driver, int y, int length)
944 struct ascii_driver *a = ascii_driver_cast (driver);
946 if (a->file == NULL && !ascii_open_page (a))
951 u8_line_set_length (&a->lines[y], length);
955 ascii_test_flush (struct output_driver *driver)
957 struct ascii_driver *a = ascii_driver_cast (driver);
959 for (size_t i = a->allocated_lines; i-- > 0; )
960 if (a->lines[i].width)
962 ascii_output_lines (a, i + 1);
967 /* ascii_close_page () and support routines. */
969 #if HAVE_DECL_SIGWINCH
970 static struct ascii_driver *the_driver;
973 winch_handler (int signum UNUSED)
975 update_page_size (the_driver, false);
980 ascii_open_page (struct ascii_driver *a)
987 a->file = fn_open (a->handle, a->append ? "a" : "w");
990 if ( isatty (fileno (a->file)))
992 #if HAVE_DECL_SIGWINCH
993 struct sigaction action;
994 sigemptyset (&action.sa_mask);
996 action.sa_handler = winch_handler;
998 sigaction (SIGWINCH, &action, NULL);
1000 a->auto_width = true;
1005 msg_error (errno, _("ascii: opening output file `%s'"),
1006 fh_get_file_name (a->handle));