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/>. */
34 #ifdef GWINSZ_IN_SYS_IOCTL
35 # include <sys/ioctl.h>
38 #include "data/file-name.h"
39 #include "data/file-handle-def.h"
40 #include "data/settings.h"
41 #include "libpspp/assertion.h"
42 #include "libpspp/cast.h"
43 #include "libpspp/compiler.h"
44 #include "libpspp/message.h"
45 #include "libpspp/start-date.h"
46 #include "libpspp/string-map.h"
47 #include "libpspp/u8-line.h"
48 #include "libpspp/version.h"
49 #include "output/ascii.h"
51 #include "output/cairo-chart.h"
53 #include "output/chart-item-provider.h"
54 #include "output/driver-provider.h"
55 #include "output/message-item.h"
56 #include "output/options.h"
57 #include "output/pivot-output.h"
58 #include "output/pivot-table.h"
59 #include "output/render.h"
60 #include "output/table-item.h"
61 #include "output/text-item.h"
63 #include "gl/minmax.h"
64 #include "gl/xalloc.h"
68 #define _(msgid) gettext (msgid)
70 /* This file uses TABLE_HORZ and TABLE_VERT enough to warrant abbreviating. */
85 ucs4_t c[ASCII_N_LINES][ASCII_N_LINES][ASCII_N_LINES][ASCII_N_LINES];
88 static const struct box_chars *
93 d = ASCII_LINE_DASHED,
94 S = ASCII_LINE_SINGLE,
95 D = ASCII_LINE_DOUBLE,
98 static const struct box_chars ascii_box =
100 /* r b l t: _ d S D */
101 .c[_][_][_] = { ' ', '|', '|', '#', },
102 .c[_][_][d] = { '-', '+', '+', '#', },
103 .c[_][_][S] = { '-', '+', '+', '#', },
104 .c[_][_][D] = { '=', '#', '#', '#', },
105 .c[_][d][_] = { '|', '|', '|', '#', },
106 .c[_][d][d] = { '+', '+', '+', '#', },
107 .c[_][d][S] = { '+', '+', '+', '#', },
108 .c[_][d][D] = { '#', '#', '#', '#', },
109 .c[_][S][_] = { '|', '|', '|', '#', },
110 .c[_][S][d] = { '+', '+', '+', '#', },
111 .c[_][S][S] = { '+', '+', '+', '#', },
112 .c[_][S][D] = { '#', '#', '#', '#', },
113 .c[_][D][_] = { '#', '#', '#', '#', },
114 .c[_][D][d] = { '#', '#', '#', '#', },
115 .c[_][D][S] = { '#', '#', '#', '#', },
116 .c[_][D][D] = { '#', '#', '#', '#', },
117 .c[d][_][_] = { '-', '+', '+', '#', },
118 .c[d][_][d] = { '-', '+', '+', '#', },
119 .c[d][_][S] = { '-', '+', '+', '#', },
120 .c[d][_][D] = { '#', '#', '#', '#', },
121 .c[d][d][_] = { '+', '+', '+', '#', },
122 .c[d][d][d] = { '+', '+', '+', '#', },
123 .c[d][d][S] = { '+', '+', '+', '#', },
124 .c[d][d][D] = { '#', '#', '#', '#', },
125 .c[d][S][_] = { '+', '+', '+', '#', },
126 .c[d][S][d] = { '+', '+', '+', '#', },
127 .c[d][S][S] = { '+', '+', '+', '#', },
128 .c[d][S][D] = { '#', '#', '#', '#', },
129 .c[d][D][_] = { '#', '#', '#', '#', },
130 .c[d][D][d] = { '#', '#', '#', '#', },
131 .c[d][D][S] = { '#', '#', '#', '#', },
132 .c[d][D][D] = { '#', '#', '#', '#', },
133 .c[S][_][_] = { '-', '+', '+', '#', },
134 .c[S][_][d] = { '-', '+', '+', '#', },
135 .c[S][_][S] = { '-', '+', '+', '#', },
136 .c[S][_][D] = { '#', '#', '#', '#', },
137 .c[S][d][_] = { '+', '+', '+', '#', },
138 .c[S][d][d] = { '+', '+', '+', '#', },
139 .c[S][d][S] = { '+', '+', '+', '#', },
140 .c[S][d][D] = { '#', '#', '#', '#', },
141 .c[S][S][_] = { '+', '+', '+', '#', },
142 .c[S][S][d] = { '+', '+', '+', '#', },
143 .c[S][S][S] = { '+', '+', '+', '#', },
144 .c[S][S][D] = { '#', '#', '#', '#', },
145 .c[S][D][_] = { '#', '#', '#', '#', },
146 .c[S][D][d] = { '#', '#', '#', '#', },
147 .c[S][D][S] = { '#', '#', '#', '#', },
148 .c[S][D][D] = { '#', '#', '#', '#', },
149 .c[D][_][_] = { '=', '#', '#', '#', },
150 .c[D][_][d] = { '#', '#', '#', '#', },
151 .c[D][_][S] = { '#', '#', '#', '#', },
152 .c[D][_][D] = { '=', '#', '#', '#', },
153 .c[D][d][_] = { '#', '#', '#', '#', },
154 .c[D][d][d] = { '#', '#', '#', '#', },
155 .c[D][d][S] = { '#', '#', '#', '#', },
156 .c[D][d][D] = { '#', '#', '#', '#', },
157 .c[D][S][_] = { '#', '#', '#', '#', },
158 .c[D][S][d] = { '#', '#', '#', '#', },
159 .c[D][S][S] = { '#', '#', '#', '#', },
160 .c[D][S][D] = { '#', '#', '#', '#', },
161 .c[D][D][_] = { '#', '#', '#', '#', },
162 .c[D][D][d] = { '#', '#', '#', '#', },
163 .c[D][D][S] = { '#', '#', '#', '#', },
164 .c[D][D][D] = { '#', '#', '#', '#', },
169 static const struct box_chars *
170 get_unicode_box (void)
174 d = ASCII_LINE_DASHED,
175 S = ASCII_LINE_SINGLE,
176 D = ASCII_LINE_DOUBLE,
179 static const struct box_chars unicode_box =
181 /* r b l t: _ d S D */
182 .c[_][_][_] = { 0x0020, 0x2575, 0x2575, 0x2551, }, /* ╵╵║ */
183 .c[_][_][d] = { 0x2574, 0x256f, 0x256f, 0x255c, }, /* ╴╯╯╜ */
184 .c[_][_][S] = { 0x2574, 0x256f, 0x256f, 0x255c, }, /* ╴╯╯╜ */
185 .c[_][_][D] = { 0x2550, 0x255b, 0x255b, 0x255d, }, /* ═╛╛╝ */
186 .c[_][S][_] = { 0x2577, 0x2502, 0x2502, 0x2551, }, /* ╷││║ */
187 .c[_][S][d] = { 0x256e, 0x2524, 0x2524, 0x2562, }, /* ╮┤┤╢ */
188 .c[_][S][S] = { 0x256e, 0x2524, 0x2524, 0x2562, }, /* ╮┤┤╢ */
189 .c[_][S][D] = { 0x2555, 0x2561, 0x2561, 0x2563, }, /* ╕╡╡╣ */
190 .c[_][d][_] = { 0x2577, 0x250a, 0x2502, 0x2551, }, /* ╷┊│║ */
191 .c[_][d][d] = { 0x256e, 0x2524, 0x2524, 0x2562, }, /* ╮┤┤╢ */
192 .c[_][d][S] = { 0x256e, 0x2524, 0x2524, 0x2562, }, /* ╮┤┤╢ */
193 .c[_][d][D] = { 0x2555, 0x2561, 0x2561, 0x2563, }, /* ╕╡╡╣ */
194 .c[_][D][_] = { 0x2551, 0x2551, 0x2551, 0x2551, }, /* ║║║║ */
195 .c[_][D][d] = { 0x2556, 0x2562, 0x2562, 0x2562, }, /* ╖╢╢╢ */
196 .c[_][D][S] = { 0x2556, 0x2562, 0x2562, 0x2562, }, /* ╖╢╢╢ */
197 .c[_][D][D] = { 0x2557, 0x2563, 0x2563, 0x2563, }, /* ╗╣╣╣ */
198 .c[d][_][_] = { 0x2576, 0x2570, 0x2570, 0x2559, }, /* ╶╰╰╙ */
199 .c[d][_][d] = { 0x254c, 0x2534, 0x2534, 0x2568, }, /* ╌┴┴╨ */
200 .c[d][_][S] = { 0x2500, 0x2534, 0x2534, 0x2568, }, /* ─┴┴╨ */
201 .c[d][_][D] = { 0x2550, 0x2567, 0x2567, 0x2569, }, /* ═╧╧╩ */
202 .c[d][d][_] = { 0x256d, 0x251c, 0x251c, 0x255f, }, /* ╭├├╟ */
203 .c[d][d][d] = { 0x252c, 0x002b, 0x253c, 0x256a, }, /* ┬+┼╪ */
204 .c[d][d][S] = { 0x252c, 0x253c, 0x253c, 0x256a, }, /* ┬┼┼╪ */
205 .c[d][d][D] = { 0x2564, 0x256a, 0x256a, 0x256c, }, /* ╤╪╪╬ */
206 .c[d][S][_] = { 0x256d, 0x251c, 0x251c, 0x255f, }, /* ╭├├╟ */
207 .c[d][S][d] = { 0x252c, 0x253c, 0x253c, 0x256a, }, /* ┬┼┼╪ */
208 .c[d][S][S] = { 0x252c, 0x253c, 0x253c, 0x256a, }, /* ┬┼┼╪ */
209 .c[d][S][D] = { 0x2564, 0x256a, 0x256a, 0x256c, }, /* ╤╪╪╬ */
210 .c[d][D][_] = { 0x2553, 0x255f, 0x255f, 0x255f, }, /* ╓╟╟╟ */
211 .c[d][D][d] = { 0x2565, 0x256b, 0x256b, 0x256b, }, /* ╥╫╫╫ */
212 .c[d][D][S] = { 0x2565, 0x256b, 0x256b, 0x256b, }, /* ╥╫╫╫ */
213 .c[d][D][D] = { 0x2566, 0x256c, 0x256c, 0x256c, }, /* ╦╬╬╬ */
214 .c[S][_][_] = { 0x2576, 0x2570, 0x2570, 0x2559, }, /* ╶╰╰╙ */
215 .c[S][_][d] = { 0x2500, 0x2534, 0x2534, 0x2568, }, /* ─┴┴╨ */
216 .c[S][_][S] = { 0x2500, 0x2534, 0x2534, 0x2568, }, /* ─┴┴╨ */
217 .c[S][_][D] = { 0x2550, 0x2567, 0x2567, 0x2569, }, /* ═╧╧╩ */
218 .c[S][d][_] = { 0x256d, 0x251c, 0x251c, 0x255f, }, /* ╭├├╟ */
219 .c[S][d][d] = { 0x252c, 0x253c, 0x253c, 0x256a, }, /* ┬┼┼╪ */
220 .c[S][d][S] = { 0x252c, 0x253c, 0x253c, 0x256a, }, /* ┬┼┼╪ */
221 .c[S][d][D] = { 0x2564, 0x256a, 0x256a, 0x256c, }, /* ╤╪╪╬ */
222 .c[S][S][_] = { 0x256d, 0x251c, 0x251c, 0x255f, }, /* ╭├├╟ */
223 .c[S][S][d] = { 0x252c, 0x253c, 0x253c, 0x256a, }, /* ┬┼┼╪ */
224 .c[S][S][S] = { 0x252c, 0x253c, 0x253c, 0x256a, }, /* ┬┼┼╪ */
225 .c[S][S][D] = { 0x2564, 0x256a, 0x256a, 0x256c, }, /* ╤╪╪╬ */
226 .c[S][D][_] = { 0x2553, 0x255f, 0x255f, 0x255f, }, /* ╓╟╟╟ */
227 .c[S][D][d] = { 0x2565, 0x256b, 0x256b, 0x256b, }, /* ╥╫╫╫ */
228 .c[S][D][S] = { 0x2565, 0x256b, 0x256b, 0x256b, }, /* ╥╫╫╫ */
229 .c[S][D][D] = { 0x2566, 0x256c, 0x256c, 0x256c, }, /* ╦╬╬╬ */
230 .c[D][_][_] = { 0x2550, 0x2558, 0x2558, 0x255a, }, /* ═╘╘╚ */
231 .c[D][_][d] = { 0x2550, 0x2567, 0x2567, 0x2569, }, /* ═╧╧╩ */
232 .c[D][_][S] = { 0x2550, 0x2567, 0x2567, 0x2569, }, /* ═╧╧╩ */
233 .c[D][_][D] = { 0x2550, 0x2567, 0x2567, 0x2569, }, /* ═╧╧╩ */
234 .c[D][d][_] = { 0x2552, 0x255e, 0x255e, 0x2560, }, /* ╒╞╞╠ */
235 .c[D][d][d] = { 0x2564, 0x256a, 0x256a, 0x256c, }, /* ╤╪╪╬ */
236 .c[D][d][S] = { 0x2564, 0x256a, 0x256a, 0x256c, }, /* ╤╪╪╬ */
237 .c[D][d][D] = { 0x2564, 0x256a, 0x256a, 0x256c, }, /* ╤╪╪╬ */
238 .c[D][S][_] = { 0x2552, 0x255e, 0x255e, 0x2560, }, /* ╒╞╞╠ */
239 .c[D][S][d] = { 0x2564, 0x256a, 0x256a, 0x256c, }, /* ╤╪╪╬ */
240 .c[D][S][S] = { 0x2564, 0x256a, 0x256a, 0x256c, }, /* ╤╪╪╬ */
241 .c[D][S][D] = { 0x2564, 0x256a, 0x256a, 0x256c, }, /* ╤╪╪╬ */
242 .c[D][D][_] = { 0x2554, 0x2560, 0x2560, 0x2560, }, /* ╔╠╠╠ */
243 .c[D][D][d] = { 0x2560, 0x256c, 0x256c, 0x256c, }, /* ╠╬╬╬ */
244 .c[D][D][S] = { 0x2560, 0x256c, 0x256c, 0x256c, }, /* ╠╬╬╬ */
245 .c[D][D][D] = { 0x2566, 0x256c, 0x256c, 0x256c, }, /* ╦╬╬╬ */
251 ascii_line_from_render_line (int render_line)
255 case RENDER_LINE_NONE:
256 return ASCII_LINE_NONE;
258 case RENDER_LINE_DASHED:
259 return ASCII_LINE_DASHED;
261 case RENDER_LINE_SINGLE:
262 case RENDER_LINE_THICK:
263 case RENDER_LINE_THIN:
264 return ASCII_LINE_SINGLE;
266 case RENDER_LINE_DOUBLE:
267 return ASCII_LINE_DOUBLE;
270 return ASCII_LINE_NONE;
276 box_get (const struct box_chars *box,
277 int left_, int right_, int top_, int bottom_)
279 bool rtl = render_direction_rtl ();
280 int left = ascii_line_from_render_line (rtl ? right_ : left_);
281 int right = ascii_line_from_render_line (rtl ? left_ : right_);
282 int top = ascii_line_from_render_line (top_);
283 int bottom = ascii_line_from_render_line (bottom_);
285 return box->c[right][bottom][left][top];
288 /* ASCII output driver. */
291 struct output_driver driver;
293 /* User parameters. */
294 bool append; /* Append if output file already exists? */
295 bool emphasis; /* Enable bold and underline in output? */
296 char *chart_file_name; /* Name of files used for charts. */
299 /* Colours for charts */
300 struct cell_color fg;
301 struct cell_color bg;
304 /* How the page width is determined: */
306 FIXED_WIDTH, /* Specified by configuration. */
307 VIEW_WIDTH, /* From SET WIDTH. */
308 TERMINAL_WIDTH /* From the terminal's width. */
310 int width; /* Page width. */
312 int min_hbreak; /* Min cell size to break across pages. */
314 const struct box_chars *box; /* Line & box drawing characters. */
316 /* Internal state. */
317 struct file_handle *handle;
318 FILE *file; /* Output file. */
319 bool error; /* Output error? */
320 struct u8_line *lines; /* Page content. */
321 int allocated_lines; /* Number of lines allocated. */
322 int chart_cnt; /* Number of charts so far. */
323 int object_cnt; /* Number of objects so far. */
324 const struct pivot_table *pt;
325 struct render_params params;
328 static const struct output_driver_class ascii_driver_class;
330 static void ascii_submit (struct output_driver *, const struct output_item *);
332 static int get_terminal_width (void);
334 static bool update_page_size (struct ascii_driver *, bool issue_error);
335 static int parse_page_size (struct driver_option *);
337 static void ascii_draw_line (void *, int bb[TABLE_N_AXES][2],
338 enum render_line_style styles[TABLE_N_AXES][2],
339 struct cell_color colors[TABLE_N_AXES][2]);
340 static void ascii_measure_cell_width (void *, const struct table_cell *,
342 static int ascii_measure_cell_height (void *, const struct table_cell *,
344 static void ascii_draw_cell (void *, const struct table_cell *, int color_idx,
345 int bb[TABLE_N_AXES][2], int valign_offset,
346 int spill[TABLE_N_AXES][2],
347 int clip[TABLE_N_AXES][2]);
349 static struct ascii_driver *
350 ascii_driver_cast (struct output_driver *driver)
352 assert (driver->class == &ascii_driver_class);
353 return UP_CAST (driver, struct ascii_driver, driver);
356 static struct driver_option *
357 opt (struct output_driver *d, struct string_map *options, const char *key,
358 const char *default_value)
360 return driver_option_get (d, options, key, default_value);
363 /* Return true iff the terminal appears to be an xterm with
364 UTF-8 capabilities */
366 term_is_utf8_xterm (void)
368 const char *term = getenv ("TERM");
369 const char *xterm_locale = getenv ("XTERM_LOCAL");
370 return (term && xterm_locale
371 && !strcmp (term, "xterm")
372 && (strcasestr (xterm_locale, "utf8")
373 || strcasestr (xterm_locale, "utf-8")));
376 static struct output_driver *
377 ascii_create (struct file_handle *fh, enum settings_output_devices device_type,
378 struct string_map *o)
380 enum { BOX_ASCII, BOX_UNICODE } box;
381 struct output_driver *d;
382 struct ascii_driver *a;
384 a = xzalloc (sizeof *a);
386 output_driver_init (&a->driver, &ascii_driver_class, fh_get_file_name (fh), device_type);
387 a->append = parse_boolean (opt (d, o, "append", "false"));
388 a->emphasis = parse_boolean (opt (d, o, "emphasis", "false"));
390 a->chart_file_name = parse_chart_file_name (opt (d, o, "charts", fh_get_file_name (fh)));
394 bool terminal = !strcmp (fh_get_file_name (fh), "-") && isatty (1);
395 a->width = parse_page_size (opt (d, o, "width", "-1"));
396 a->width_mode = (a->width > 0 ? FIXED_WIDTH
397 : terminal ? TERMINAL_WIDTH
399 a->min_hbreak = parse_int (opt (d, o, "min-hbreak", "-1"), -1, INT_MAX);
402 a->bg = parse_color (opt (d, o, "background-color", "#FFFFFFFFFFFF"));
403 a->fg = parse_color (opt (d, o, "foreground-color", "#000000000000"));
406 const char *default_box = (terminal && (!strcmp (locale_charset (), "UTF-8")
407 || term_is_utf8_xterm ())
408 ? "unicode" : "ascii");
409 box = parse_enum (opt (d, o, "box", default_box),
411 "unicode", BOX_UNICODE,
413 a->box = box == BOX_ASCII ? get_ascii_box () : get_unicode_box ();
418 a->allocated_lines = 0;
422 static const struct render_ops ascii_render_ops = {
423 .draw_line = ascii_draw_line,
424 .measure_cell_width = ascii_measure_cell_width,
425 .measure_cell_height = ascii_measure_cell_height,
426 .adjust_break = NULL,
427 .draw_cell = ascii_draw_cell,
429 a->params.ops = &ascii_render_ops;
431 a->params.size[H] = a->width;
432 a->params.size[V] = INT_MAX;
433 a->params.font_size[H] = 1;
434 a->params.font_size[V] = 1;
436 static const int ascii_line_widths[RENDER_N_LINES] = {
437 [RENDER_LINE_NONE] = 0,
438 [RENDER_LINE_SINGLE] = 1,
439 [RENDER_LINE_DASHED] = 1,
440 [RENDER_LINE_THICK] = 1,
441 [RENDER_LINE_THIN] = 1,
442 [RENDER_LINE_DOUBLE] = 1,
444 a->params.line_widths = ascii_line_widths;
445 a->params.supports_margins = false;
446 a->params.rtl = render_direction_rtl ();
447 a->params.printing = true;
449 if (!update_page_size (a, true))
452 a->file = fn_open (a->handle, a->append ? "a" : "w");
455 msg_error (errno, _("ascii: opening output file `%s'"),
456 fh_get_file_name (a->handle));
463 output_driver_destroy (d);
468 parse_page_size (struct driver_option *option)
470 int dim = atol (option->default_value);
472 if (option->value != NULL)
474 if (!strcmp (option->value, "auto"))
482 value = strtol (option->value, &tail, 0);
483 if (value >= 1 && errno != ERANGE && *tail == '\0')
486 msg (MW, _("%s: %s must be positive integer or `auto'"),
487 option->driver_name, option->name);
491 driver_option_destroy (option);
496 /* Re-calculates the page width based on settings, margins, and, if "auto" is
497 set, the size of the user's terminal window or GUI output window. */
499 update_page_size (struct ascii_driver *a, bool issue_error)
501 enum { MIN_WIDTH = 6 };
503 int want_width = (a->width_mode == VIEW_WIDTH ? settings_get_viewwidth ()
504 : a->width_mode == TERMINAL_WIDTH ? get_terminal_width ()
506 bool ok = want_width >= MIN_WIDTH;
507 if (!ok && issue_error)
508 msg (ME, _("ascii: page must be at least %d characters wide, but "
509 "as configured is only %d characters"),
510 MIN_WIDTH, want_width);
512 a->width = ok ? want_width : MIN_WIDTH;
513 a->params.size[H] = a->width;
514 a->params.min_break[H] = a->min_hbreak >= 0 ? a->min_hbreak : a->width / 2;
520 ascii_destroy (struct output_driver *driver)
522 struct ascii_driver *a = ascii_driver_cast (driver);
526 fn_close (a->handle, a->file);
527 fh_unref (a->handle);
528 free (a->chart_file_name);
529 for (i = 0; i < a->allocated_lines; i++)
530 u8_line_destroy (&a->lines[i]);
536 ascii_flush (struct output_driver *driver)
538 struct ascii_driver *a = ascii_driver_cast (driver);
544 ascii_output_lines (struct ascii_driver *a, size_t n_lines)
546 for (size_t y = 0; y < n_lines; y++)
548 if (y < a->allocated_lines)
550 struct u8_line *line = &a->lines[y];
552 while (ds_chomp_byte (&line->s, ' '))
554 fwrite (ds_data (&line->s), 1, ds_length (&line->s), a->file);
555 u8_line_clear (&a->lines[y]);
557 putc ('\n', a->file);
562 ascii_output_table_item (struct ascii_driver *a,
563 const struct table_item *table_item)
565 update_page_size (a, false);
566 a->pt = table_item->pt;
568 size_t *layer_indexes;
569 PIVOT_OUTPUT_FOR_EACH_LAYER (layer_indexes, table_item->pt, true)
571 struct render_pager *p = render_pager_create (&a->params, table_item,
573 for (int i = 0; render_pager_has_next (p); i++)
576 putc ('\n', a->file);
578 ascii_output_lines (a, render_pager_draw_next (p, INT_MAX));
580 render_pager_destroy (p);
587 ascii_output_table_item_unref (struct ascii_driver *a,
588 struct table_item *table_item)
590 ascii_output_table_item (a, table_item);
591 table_item_unref (table_item);
595 ascii_submit (struct output_driver *driver,
596 const struct output_item *output_item)
598 struct ascii_driver *a = ascii_driver_cast (driver);
603 if (is_table_item (output_item))
604 ascii_output_table_item (a, to_table_item (output_item));
606 else if (is_chart_item (output_item) && a->chart_file_name != NULL)
608 struct chart_item *chart_item = to_chart_item (output_item);
611 file_name = xr_draw_png_chart (chart_item, a->chart_file_name,
615 if (file_name != NULL)
617 struct text_item *text_item;
619 text_item = text_item_create_nocopy (
621 xasprintf (_("See %s for a chart."), file_name),
624 ascii_submit (driver, &text_item->output_item);
625 text_item_unref (text_item);
629 #endif /* HAVE_CAIRO */
630 else if (is_text_item (output_item))
632 const struct text_item *text_item = to_text_item (output_item);
633 enum text_item_type type = text_item_get_type (text_item);
635 if (type != TEXT_ITEM_PAGE_TITLE)
636 ascii_output_table_item_unref (
637 a, text_item_to_table_item (text_item_ref (text_item)));
639 else if (is_message_item (output_item))
640 ascii_output_table_item_unref (
641 a, text_item_to_table_item (
642 message_item_to_text_item (
644 output_item_ref (output_item)))));
647 const struct output_driver_factory txt_driver_factory =
648 { "txt", "-", ascii_create };
649 const struct output_driver_factory list_driver_factory =
650 { "list", "-", ascii_create };
652 static const struct output_driver_class ascii_driver_class =
660 static char *ascii_reserve (struct ascii_driver *, int y, int x0, int x1,
662 static void ascii_layout_cell (struct ascii_driver *,
663 const struct table_cell *,
664 int bb[TABLE_N_AXES][2],
665 int clip[TABLE_N_AXES][2],
666 int *width, int *height);
669 ascii_draw_line (void *a_, int bb[TABLE_N_AXES][2],
670 enum render_line_style styles[TABLE_N_AXES][2],
671 struct cell_color colors[TABLE_N_AXES][2] UNUSED)
673 struct ascii_driver *a = a_;
680 /* Clip to the page. */
681 x0 = MAX (bb[H][0], 0);
682 y0 = MAX (bb[V][0], 0);
683 x1 = MIN (bb[H][1], a->width);
685 if (x1 <= 0 || y1 <= 0 || x0 >= a->width)
689 uc = box_get (a->box, styles[V][0], styles[V][1], styles[H][0], styles[H][1]);
690 mblen = u8_uctomb (CHAR_CAST (uint8_t *, mbchar), uc, 6);
691 for (y = y0; y < y1; y++)
693 char *p = ascii_reserve (a, y, x0, x1, mblen * (x1 - x0));
694 for (x = x0; x < x1; x++)
696 memcpy (p, mbchar, mblen);
703 ascii_measure_cell_width (void *a_, const struct table_cell *cell,
704 int *min_width, int *max_width)
706 struct ascii_driver *a = a_;
707 int bb[TABLE_N_AXES][2];
708 int clip[TABLE_N_AXES][2];
715 clip[H][0] = clip[H][1] = clip[V][0] = clip[V][1] = 0;
716 ascii_layout_cell (a, cell, bb, clip, max_width, &h);
719 ascii_layout_cell (a, cell, bb, clip, min_width, &h);
723 ascii_measure_cell_height (void *a_, const struct table_cell *cell, int width)
725 struct ascii_driver *a = a_;
726 int bb[TABLE_N_AXES][2];
727 int clip[TABLE_N_AXES][2];
734 clip[H][0] = clip[H][1] = clip[V][0] = clip[V][1] = 0;
735 ascii_layout_cell (a, cell, bb, clip, &w, &h);
740 ascii_draw_cell (void *a_, const struct table_cell *cell, int color_idx UNUSED,
741 int bb[TABLE_N_AXES][2], int valign_offset,
742 int spill[TABLE_N_AXES][2] UNUSED,
743 int clip[TABLE_N_AXES][2])
745 struct ascii_driver *a = a_;
748 bb[V][0] += valign_offset;
749 ascii_layout_cell (a, cell, bb, clip, &w, &h);
753 ascii_reserve (struct ascii_driver *a, int y, int x0, int x1, int n)
755 if (y >= a->allocated_lines)
757 size_t new_alloc = MAX (25, a->allocated_lines);
758 while (new_alloc <= y)
759 new_alloc = xtimes (new_alloc, 2);
760 a->lines = xnrealloc (a->lines, new_alloc, sizeof *a->lines);
761 for (size_t i = a->allocated_lines; i < new_alloc; i++)
762 u8_line_init (&a->lines[i]);
763 a->allocated_lines = new_alloc;
765 return u8_line_reserve (&a->lines[y], x0, x1, n);
769 text_draw (struct ascii_driver *a, enum table_halign halign, bool numeric,
770 bool bold, bool underline,
771 int bb[TABLE_N_AXES][2], int clip[TABLE_N_AXES][2],
772 int y, const uint8_t *string, int n, size_t width)
774 int x0 = MAX (0, clip[H][0]);
775 int y0 = MAX (0, clip[V][0]);
776 int x1 = MIN (a->width, clip[H][1]);
780 if (y < y0 || y >= y1)
783 switch (table_halign_interpret (halign, numeric))
785 case TABLE_HALIGN_LEFT:
788 case TABLE_HALIGN_CENTER:
789 x = (bb[H][0] + bb[H][1] - width + 1) / 2;
791 case TABLE_HALIGN_RIGHT:
792 case TABLE_HALIGN_DECIMAL:
793 x = bb[H][1] - width;
809 mblen = u8_mbtouc (&uc, string, n);
814 w = uc_width (uc, "UTF-8");
829 for (ofs = 0; ofs < n;)
835 mblen = u8_mbtouc (&uc, string + ofs, n - ofs);
837 w = uc_width (uc, "UTF-8");
840 if (width + w > x1 - x)
851 if (!a->emphasis || (!bold && !underline))
852 memcpy (ascii_reserve (a, y, x, x + width, n), string, n);
860 /* First figure out how many bytes need to be inserted. */
862 for (ofs = 0; ofs < n; ofs += mblen)
867 mblen = u8_mbtouc (&uc, string + ofs, n - ofs);
868 w = uc_width (uc, "UTF-8");
879 /* Then insert them. */
880 out = ascii_reserve (a, y, x, x + width, n_out);
881 for (ofs = 0; ofs < n; ofs += mblen)
886 mblen = u8_mbtouc (&uc, string + ofs, n - ofs);
887 w = uc_width (uc, "UTF-8");
893 out = mempcpy (out, string + ofs, mblen);
902 out = mempcpy (out, string + ofs, mblen);
908 ascii_layout_cell (struct ascii_driver *a, const struct table_cell *cell,
909 int bb[TABLE_N_AXES][2], int clip[TABLE_N_AXES][2],
910 int *widthp, int *heightp)
915 struct string body = DS_EMPTY_INITIALIZER;
916 bool numeric = pivot_value_format_body (cell->value, a->pt, &body);
918 /* Calculate length; if it's zero, then there's nothing to do. */
919 if (ds_is_empty (&body))
925 size_t length = ds_length (&body);
926 const uint8_t *text = CHAR_CAST (uint8_t *, ds_cstr (&body));
928 char *breaks = xmalloc (length + 1);
929 u8_possible_linebreaks (text, length, "UTF-8", breaks);
930 breaks[length] = (breaks[length - 1] == UC_BREAK_MANDATORY
931 ? UC_BREAK_PROHIBITED : UC_BREAK_POSSIBLE);
934 int bb_width = bb[H][1] - bb[H][0];
935 for (int y = bb[V][0]; y < bb[V][1] && pos < length; y++)
937 const uint8_t *line = text + pos;
938 const char *b = breaks + pos;
939 size_t n = length - pos;
941 size_t last_break_ofs = 0;
942 int last_break_width = 0;
947 for (ofs = 0; ofs < n;)
953 mblen = u8_mbtouc (&uc, line + ofs, n - ofs);
954 if (b[ofs] == UC_BREAK_MANDATORY)
956 else if (b[ofs] == UC_BREAK_POSSIBLE)
958 last_break_ofs = ofs;
959 last_break_width = width;
962 w = uc_width (uc, "UTF-8");
965 if (width + w > bb_width)
967 if (isspace (line[ofs]))
969 else if (last_break_ofs != 0)
971 ofs = last_break_ofs;
972 width = last_break_width;
981 /* Trim any trailing spaces off the end of the text to be drawn. */
982 for (graph_ofs = ofs; graph_ofs > 0; graph_ofs--)
983 if (!isspace (line[graph_ofs - 1]))
985 width -= ofs - graph_ofs;
988 text_draw (a, cell->cell_style->halign, numeric,
989 cell->font_style->bold,
990 cell->font_style->underline,
991 bb, clip, y, line, graph_ofs, width);
993 /* If a new-line ended the line, just skip the new-line. Otherwise, skip
994 past any spaces past the end of the line (but not past a new-line). */
995 if (b[ofs] == UC_BREAK_MANDATORY)
998 while (ofs < n && isspace (line[ofs]) && b[ofs] != UC_BREAK_MANDATORY)
1001 if (width > *widthp)
1012 ascii_test_write (struct output_driver *driver,
1013 const char *s, int x, int y, bool bold, bool underline)
1015 struct ascii_driver *a = ascii_driver_cast (driver);
1016 int bb[TABLE_N_AXES][2];
1022 struct cell_style cell_style = { .halign = TABLE_HALIGN_LEFT };
1023 struct font_style font_style = {
1025 .underline = underline,
1027 const struct pivot_value value = {
1028 .type = PIVOT_VALUE_TEXT,
1030 .local = CONST_CAST (char *, s),
1031 .c = CONST_CAST (char *, s),
1032 .id = CONST_CAST (char *, s),
1033 .user_provided = true,
1036 struct table_cell cell = {
1038 .font_style = &font_style,
1039 .cell_style = &cell_style,
1042 bb[TABLE_HORZ][0] = x;
1043 bb[TABLE_HORZ][1] = a->width;
1044 bb[TABLE_VERT][0] = y;
1045 bb[TABLE_VERT][1] = INT_MAX;
1047 struct pivot_table pt = {
1048 .show_values = SETTINGS_VALUE_SHOW_DEFAULT,
1049 .show_variables = SETTINGS_VALUE_SHOW_DEFAULT,
1052 ascii_layout_cell (a, &cell, bb, bb, &width, &height);
1057 ascii_test_set_length (struct output_driver *driver, int y, int length)
1059 struct ascii_driver *a = ascii_driver_cast (driver);
1066 u8_line_set_length (&a->lines[y], length);
1070 ascii_test_flush (struct output_driver *driver)
1072 struct ascii_driver *a = ascii_driver_cast (driver);
1074 for (size_t i = a->allocated_lines; i-- > 0;)
1075 if (a->lines[i].width)
1077 ascii_output_lines (a, i + 1);
1082 static sig_atomic_t terminal_changed = true;
1083 static int terminal_width;
1085 #if HAVE_DECL_SIGWINCH
1087 winch_handler (int signum UNUSED)
1089 terminal_changed = true;
1094 get_terminal_width (void)
1096 #if HAVE_DECL_SIGWINCH
1097 static bool setup_signal;
1100 setup_signal = true;
1102 struct sigaction action = { .sa_handler = winch_handler };
1103 sigemptyset (&action.sa_mask);
1104 sigaction (SIGWINCH, &action, NULL);
1108 if (terminal_changed)
1110 terminal_changed = false;
1112 #ifdef HAVE_TERMIOS_H
1114 if (!ioctl (0, TIOCGWINSZ, &ws))
1115 terminal_width = ws.ws_col;
1119 if (getenv ("COLUMNS"))
1120 terminal_width = atoi (getenv ("COLUMNS"));
1123 if (terminal_width <= 0 || terminal_width > 1024)
1124 terminal_width = 79;
1127 return terminal_width;