1 /* PSPP - a program for statistical analysis.
2 Copyright (C) 1997-9, 2000, 2009, 2010, 2011, 2012, 2013, 2014, 2017 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/>. */
26 #include "data/file-name.h"
27 #include "data/file-handle-def.h"
28 #include "libpspp/assertion.h"
29 #include "libpspp/cast.h"
30 #include "libpspp/compiler.h"
31 #include "libpspp/message.h"
32 #include "libpspp/version.h"
33 #include "output/cairo.h"
34 #include "output/chart-item.h"
35 #include "output/driver-provider.h"
36 #include "output/message-item.h"
37 #include "output/options.h"
38 #include "output/output-item-provider.h"
39 #include "output/table-provider.h"
40 #include "output/table-item.h"
41 #include "output/text-item.h"
46 #define _(msgid) gettext (msgid)
50 struct output_driver driver;
55 struct file_handle *handle;
56 char *chart_file_name;
65 static const struct output_driver_class html_driver_class;
67 static void html_output_table (struct html_driver *, const struct table_item *);
68 static void escape_string (FILE *file,
69 const char *text, size_t length,
70 const char *space, const char *newline);
71 static void print_title_tag (FILE *file, const char *name,
74 static struct html_driver *
75 html_driver_cast (struct output_driver *driver)
77 assert (driver->class == &html_driver_class);
78 return UP_CAST (driver, struct html_driver, driver);
81 static struct driver_option *
82 opt (struct output_driver *d, struct string_map *options, const char *key,
83 const char *default_value)
85 return driver_option_get (d, options, key, default_value);
88 static struct output_driver *
89 html_create (struct file_handle *fh, enum settings_output_devices device_type,
92 struct output_driver *d;
93 struct html_driver *html;
95 html = xzalloc (sizeof *html);
97 output_driver_init (&html->driver, &html_driver_class, fh_get_file_name (fh),
99 html->css = parse_boolean (opt (d, o, "css", "true"));
100 html->borders = parse_boolean (opt (d, o, "borders", "true"));
103 html->chart_file_name = parse_chart_file_name (opt (d, o, "charts",
104 fh_get_file_name (fh)));
108 parse_color (d, o, "background-color", "#FFFFFFFFFFFF", &html->bg);
109 parse_color (d, o, "foreground-color", "#000000000000", &html->fg);
111 html->file = fn_open (html->handle, "w");
112 if (html->file == NULL)
114 msg_error (errno, _("error opening output file `%s'"), fh_get_file_name (html->handle));
118 fputs ("<!DOCTYPE html PUBLIC \"-//W3C//DTD HTML 4.01 Transitional//EN\"\n"
119 " \"http://www.w3.org/TR/html4/loose.dtd\">\n", html->file);
120 fputs ("<HTML>\n", html->file);
121 fputs ("<HEAD>\n", html->file);
122 print_title_tag (html->file, "TITLE", _("PSPP Output"));
123 fprintf (html->file, "<META NAME=\"generator\" CONTENT=\"%s\">\n", version);
124 fputs ("<META HTTP-EQUIV=\"Content-Type\" "
125 "CONTENT=\"text/html; charset=utf-8\">\n", html->file);
129 fputs ("<META http-equiv=\"Content-Style-Type\" content=\"text/css\">\n",
131 fputs ("<STYLE TYPE=\"text/css\">\n"
134 " background: white;\n"
136 " padding: 0em 12em 0em 3em;\n"
140 " margin: 0pt 0pt 0pt 0em\n"
143 " text-indent: 1.5em;\n"
146 " font-size: 150%;\n"
147 " margin-left: -1.33em\n"
150 " font-size: 125%;\n"
151 " font-weight: bold;\n"
152 " margin-left: -.8em\n"
155 " font-size: 100%;\n"
156 " font-weight: bold;\n"
157 " margin-left: -.5em }\n"
159 " font-size: 100%;\n"
160 " margin-left: 0em\n"
162 "h1, h2, h3, h4, h5, h6 {\n"
163 " font-family: sans-serif;\n"
170 " font-family: sans-serif\n"
173 " border-collapse: collapse;\n"
174 " margin-bottom: 1em\n"
176 "th { background: #dddddd; font-weight: normal; font-style: oblique }\n"
178 " text-align: left\n"
184 fputs ("</HEAD>\n", html->file);
185 fputs ("<BODY BGCOLOR=\"#ffffff\" TEXT=\"#000000\"\n", html->file);
186 fputs (" LINK=\"#1f00ff\" ALINK=\"#ff0000\" VLINK=\"#9900dd\">\n", html->file);
191 output_driver_destroy (d);
195 /* Emits <NAME>CONTENT</NAME> to the output, escaping CONTENT as
196 necessary for HTML. */
198 print_title_tag (FILE *file, const char *name, const char *content)
202 fprintf (file, "<%s>", name);
203 escape_string (file, content, strlen (content), " ", " - ");
204 fprintf (file, "</%s>\n", name);
209 html_destroy (struct output_driver *driver)
211 struct html_driver *html = html_driver_cast (driver);
213 if (html->file != NULL)
218 "<!-- end of file -->\n");
219 fn_close (html->handle, html->file);
221 free (html->chart_file_name);
222 fh_unref (html->handle);
227 html_submit (struct output_driver *driver,
228 const struct output_item *output_item)
230 struct html_driver *html = html_driver_cast (driver);
232 if (is_table_item (output_item))
234 struct table_item *table_item = to_table_item (output_item);
235 html_output_table (html, table_item);
238 else if (is_chart_item (output_item) && html->chart_file_name != NULL)
240 struct chart_item *chart_item = to_chart_item (output_item);
243 file_name = xr_draw_png_chart (chart_item, html->chart_file_name,
248 if (file_name != NULL)
250 const char *title = chart_item_get_title (chart_item);
251 fprintf (html->file, "<IMG SRC=\"%s\" ALT=\"Chart: %s\">",
252 file_name, title ? title : _("No description"));
256 #endif /* HAVE_CAIRO */
257 else if (is_text_item (output_item))
259 struct text_item *text_item = to_text_item (output_item);
260 const char *s = text_item_get_text (text_item);
262 switch (text_item_get_type (text_item))
264 case TEXT_ITEM_PAGE_TITLE:
267 case TEXT_ITEM_SUBHEAD:
268 print_title_tag (html->file, "H4", s);
271 case TEXT_ITEM_SYNTAX:
272 fprintf (html->file, "<PRE class=\"syntax\">");
273 escape_string (html->file, s, strlen (s), " ", "<BR>");
274 fprintf (html->file, "</PRE>\n");
277 case TEXT_ITEM_PARAGRAPH:
278 print_title_tag (html->file, "P", s);
281 case TEXT_ITEM_MONOSPACE:
282 print_title_tag (html->file, "PRE", s); /* should be <P><TT> */
285 case TEXT_ITEM_BLANK_LINE:
286 fputs ("<BR>", html->file);
289 case TEXT_ITEM_EJECT_PAGE:
293 case TEXT_ITEM_COMMENT:
295 /* We print out syntax anyway, so nothing to do here either. */
299 else if (is_message_item (output_item))
301 const struct message_item *message_item = to_message_item (output_item);
302 char *s = msg_to_string (message_item_get_msg (message_item));
303 print_title_tag (html->file, "P", s);
308 /* Write LENGTH characters in TEXT to file F, escaping characters as necessary
309 for HTML. Spaces are replaced by SPACE, which should be " " or " "
310 New-lines are replaced by NEWLINE, which might be "<BR>" or "\n" or
311 something else appropriate. */
313 escape_string (FILE *file,
314 const char *text, size_t length,
315 const char *space, const char *newline)
323 fputs (newline, file);
326 fputs ("&", file);
329 fputs ("<", file);
332 fputs (">", file);
338 fputs (""", file);
348 border_to_css (int border)
362 return "thick solid";
377 put_border (FILE *file, int *n_borders, int style, const char *border_name)
379 const char *css = border_to_css (style);
382 fprintf (file, "%sborder-%s: %s",
383 (*n_borders)++ == 0 ? " STYLE=\"" : "; ",
389 put_tfoot (struct html_driver *html, const struct table *t, bool *tfoot)
393 fprintf (html->file, "<TFOOT><TR><TD COLSPAN=%d>", table_nc (t));
397 fputs ("\n<BR>", html->file);
401 html_put_footnote_markers (struct html_driver *html,
402 const struct footnote **footnotes,
407 fputs ("<SUP>", html->file);
408 for (size_t i = 0; i < n_footnotes; i++)
410 const struct footnote *f = footnotes[i];
413 putc (',', html->file);
414 escape_string (html->file, f->marker,
415 strlen (f->marker), " ", "<BR>");
417 fputs ("</SUP>", html->file);
422 html_put_table_item_text (struct html_driver *html,
423 const struct table_item_text *text)
425 escape_string (html->file, text->content, strlen (text->content),
427 html_put_footnote_markers (html, text->footnotes, text->n_footnotes);
431 html_output_table (struct html_driver *html, const struct table_item *item)
433 const struct table *t = table_item_get_table (item);
437 fputs ("<TABLE>", html->file);
439 const struct table_item_text *caption = table_item_get_caption (item);
442 put_tfoot (html, t, &tfoot);
443 html_put_table_item_text (html, caption);
445 const struct footnote **f;
446 size_t n_footnotes = table_collect_footnotes (item, &f);
448 for (size_t i = 0; i < n_footnotes; i++)
451 put_tfoot (html, t, &tfoot);
452 fputs ("<SUP>", html->file);
453 escape_string (html->file, f[i]->marker, strlen (f[i]->marker),
455 fputs ("</SUP> ", html->file);
456 escape_string (html->file, f[i]->content, strlen (f[i]->content),
461 fputs ("</TD></TR></TFOOT>\n", html->file);
463 fputs ("<TBODY VALIGN=\"TOP\">\n", html->file);
465 const struct table_item_text *title = table_item_get_title (item);
466 const struct table_item_text *layers = table_item_get_layers (item);
469 fputs (" <CAPTION>", html->file);
471 html_put_table_item_text (html, title);
473 fputs ("<BR>\n", html->file);
475 html_put_table_item_text (html, layers);
476 fputs ("</CAPTION>\n", html->file);
479 for (y = 0; y < table_nr (t); y++)
483 fputs (" <TR>\n", html->file);
484 for (x = 0; x < table_nc (t); )
486 const struct cell_contents *c;
487 struct table_cell cell;
490 int colspan, rowspan;
491 int top, left, right, bottom;
493 table_get_cell (t, x, y, &cell);
494 if (x != cell.d[TABLE_HORZ][0] || y != cell.d[TABLE_VERT][0])
497 /* Output <TD> or <TH> tag. */
498 is_header = (y < table_ht (t)
499 || y >= table_nr (t) - table_hb (t)
501 || x >= table_nc (t) - table_hr (t));
502 tag = is_header ? "TH" : "TD";
503 fprintf (html->file, " <%s", tag);
505 int halign = (cell.n_contents > 0
506 ? cell.contents[0].options & TAB_HALIGN
508 if (halign != TAB_LEFT)
509 fprintf (html->file, " ALIGN=\"%s\"",
510 halign == TAB_RIGHT ? "RIGHT" : "CENTER");
512 int valign = (cell.n_contents > 0
513 ? cell.contents[0].options & TAB_VALIGN
515 if (valign != TAB_TOP)
516 fprintf (html->file, " ALIGN=\"%s\"",
517 valign == TAB_BOTTOM ? "BOTTOM" : "MIDDLE");
519 colspan = table_cell_colspan (&cell);
521 fprintf (html->file, " COLSPAN=\"%d\"", colspan);
523 rowspan = table_cell_rowspan (&cell);
525 fprintf (html->file, " ROWSPAN=\"%d\"", rowspan);
532 struct cell_color color;
533 top = table_get_rule (t, TABLE_VERT, x, y, &color);
534 put_border (html->file, &n_borders, top, "top");
536 if (y + rowspan == table_nr (t))
538 bottom = table_get_rule (t, TABLE_VERT, x, y + rowspan,
540 put_border (html->file, &n_borders, bottom, "bottom");
543 left = table_get_rule (t, TABLE_HORZ, x, y, &color);
544 put_border (html->file, &n_borders, left, "left");
546 if (x + colspan == table_nc (t))
548 right = table_get_rule (t, TABLE_HORZ, x + colspan, y,
550 put_border (html->file, &n_borders, right, "right");
554 fputs ("\"", html->file);
557 putc ('>', html->file);
559 /* Output cell contents. */
560 for (c = cell.contents; c < &cell.contents[cell.n_contents]; c++)
562 const char *s = c->text;
564 if (c->options & TAB_EMPH)
565 fputs ("<EM>", html->file);
566 if (c->options & TAB_FIX)
568 fputs ("<TT>", html->file);
569 escape_string (html->file, s, strlen (s), " ", "<BR>");
570 fputs ("</TT>", html->file);
574 s += strspn (s, CC_SPACES);
575 escape_string (html->file, s, strlen (s), " ", "<BR>");
577 if (c->options & TAB_EMPH)
578 fputs ("</EM>", html->file);
580 html_put_footnote_markers (html, c->footnotes, c->n_footnotes);
583 /* Output </TH> or </TD>. */
584 fprintf (html->file, "</%s>\n", tag);
587 x = cell.d[TABLE_HORZ][1];
588 table_cell_free (&cell);
590 fputs (" </TR>\n", html->file);
593 fputs ("</TBODY></TABLE>\n\n", html->file);
596 struct output_driver_factory html_driver_factory =
597 { "html", "pspp.html", html_create };
599 static const struct output_driver_class html_driver_class =