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"
43 #include "gl/minmax.h"
44 #include "gl/xalloc.h"
47 #define _(msgid) gettext (msgid)
51 struct output_driver driver;
56 struct file_handle *handle;
57 char *chart_file_name;
66 static const struct output_driver_class html_driver_class;
68 static void html_output_table (struct html_driver *, const struct table_item *);
69 static void escape_string (FILE *file,
70 const char *text, size_t length,
71 const char *space, const char *newline);
72 static void print_title_tag (FILE *file, const char *name,
75 static struct html_driver *
76 html_driver_cast (struct output_driver *driver)
78 assert (driver->class == &html_driver_class);
79 return UP_CAST (driver, struct html_driver, driver);
82 static struct driver_option *
83 opt (struct output_driver *d, struct string_map *options, const char *key,
84 const char *default_value)
86 return driver_option_get (d, options, key, default_value);
89 static struct output_driver *
90 html_create (struct file_handle *fh, enum settings_output_devices device_type,
93 struct output_driver *d;
94 struct html_driver *html;
96 html = xzalloc (sizeof *html);
98 output_driver_init (&html->driver, &html_driver_class, fh_get_file_name (fh),
100 html->css = parse_boolean (opt (d, o, "css", "true"));
101 html->borders = parse_boolean (opt (d, o, "borders", "true"));
104 html->chart_file_name = parse_chart_file_name (opt (d, o, "charts",
105 fh_get_file_name (fh)));
109 parse_color (d, o, "background-color", "#FFFFFFFFFFFF", &html->bg);
110 parse_color (d, o, "foreground-color", "#000000000000", &html->fg);
112 html->file = fn_open (html->handle, "w");
113 if (html->file == NULL)
115 msg_error (errno, _("error opening output file `%s'"), fh_get_file_name (html->handle));
119 fputs ("<!DOCTYPE html PUBLIC \"-//W3C//DTD HTML 4.01 Transitional//EN\"\n"
120 " \"http://www.w3.org/TR/html4/loose.dtd\">\n", html->file);
121 fputs ("<HTML>\n", html->file);
122 fputs ("<HEAD>\n", html->file);
123 print_title_tag (html->file, "TITLE", _("PSPP Output"));
124 fprintf (html->file, "<META NAME=\"generator\" CONTENT=\"%s\">\n", version);
125 fputs ("<META HTTP-EQUIV=\"Content-Type\" "
126 "CONTENT=\"text/html; charset=utf-8\">\n", html->file);
130 fputs ("<META http-equiv=\"Content-Style-Type\" content=\"text/css\">\n",
132 fputs ("<STYLE TYPE=\"text/css\">\n"
135 " background: white;\n"
137 " padding: 0em 12em 0em 3em;\n"
141 " margin: 0pt 0pt 0pt 0em\n"
144 " text-indent: 1.5em;\n"
147 " font-size: 150%;\n"
148 " margin-left: -1.33em\n"
151 " font-size: 125%;\n"
152 " font-weight: bold;\n"
153 " margin-left: -.8em\n"
156 " font-size: 100%;\n"
157 " font-weight: bold;\n"
158 " margin-left: -.5em }\n"
160 " font-size: 100%;\n"
161 " margin-left: 0em\n"
163 "h1, h2, h3, h4, h5, h6 {\n"
164 " font-family: sans-serif;\n"
171 " font-family: sans-serif\n"
174 " border-collapse: collapse;\n"
175 " margin-bottom: 1em\n"
177 "th { background: #dddddd; font-weight: normal; font-style: oblique }\n"
179 " text-align: left\n"
185 fputs ("</HEAD>\n", html->file);
186 fputs ("<BODY BGCOLOR=\"#ffffff\" TEXT=\"#000000\"\n", html->file);
187 fputs (" LINK=\"#1f00ff\" ALINK=\"#ff0000\" VLINK=\"#9900dd\">\n", html->file);
192 output_driver_destroy (d);
196 /* Emits <NAME>CONTENT</NAME> to the output, escaping CONTENT as
197 necessary for HTML. */
199 print_title_tag (FILE *file, const char *name, const char *content)
203 fprintf (file, "<%s>", name);
204 escape_string (file, content, strlen (content), " ", " - ");
205 fprintf (file, "</%s>\n", name);
210 html_destroy (struct output_driver *driver)
212 struct html_driver *html = html_driver_cast (driver);
214 if (html->file != NULL)
219 "<!-- end of file -->\n");
220 fn_close (html->handle, html->file);
222 free (html->chart_file_name);
223 fh_unref (html->handle);
228 html_submit (struct output_driver *driver,
229 const struct output_item *output_item)
231 struct html_driver *html = html_driver_cast (driver);
233 if (is_table_item (output_item))
235 struct table_item *table_item = to_table_item (output_item);
236 html_output_table (html, table_item);
239 else if (is_chart_item (output_item) && html->chart_file_name != NULL)
241 struct chart_item *chart_item = to_chart_item (output_item);
244 file_name = xr_draw_png_chart (chart_item, html->chart_file_name,
249 if (file_name != NULL)
251 const char *title = chart_item_get_title (chart_item);
252 fprintf (html->file, "<IMG SRC=\"%s\" ALT=\"Chart: %s\">",
253 file_name, title ? title : _("No description"));
257 #endif /* HAVE_CAIRO */
258 else if (is_text_item (output_item))
260 struct text_item *text_item = to_text_item (output_item);
261 const char *s = text_item_get_text (text_item);
263 switch (text_item_get_type (text_item))
265 case TEXT_ITEM_PAGE_TITLE:
268 case TEXT_ITEM_TITLE:
270 int level = MIN (5, output_get_group_level ()) + 1;
271 char tag[3] = { 'H', level + '1', '\0' };
272 print_title_tag (html->file, tag, s);
276 case TEXT_ITEM_SYNTAX:
277 fprintf (html->file, "<PRE class=\"syntax\">");
278 escape_string (html->file, s, strlen (s), " ", "<BR>");
279 fprintf (html->file, "</PRE>\n");
283 print_title_tag (html->file, "PRE", s); /* should be <P><TT> */
286 case TEXT_ITEM_EJECT_PAGE:
291 else if (is_message_item (output_item))
293 const struct message_item *message_item = to_message_item (output_item);
294 char *s = msg_to_string (message_item_get_msg (message_item));
295 print_title_tag (html->file, "P", s);
300 /* Write LENGTH characters in TEXT to file F, escaping characters as necessary
301 for HTML. Spaces are replaced by SPACE, which should be " " or " "
302 New-lines are replaced by NEWLINE, which might be "<BR>" or "\n" or
303 something else appropriate. */
305 escape_string (FILE *file,
306 const char *text, size_t length,
307 const char *space, const char *newline)
315 fputs (newline, file);
318 fputs ("&", file);
321 fputs ("<", file);
324 fputs (">", file);
330 fputs (""", file);
340 border_to_css (int border)
354 return "thick solid";
369 put_border (FILE *file, int *n_borders, int style, const char *border_name)
371 const char *css = border_to_css (style);
374 fprintf (file, "%sborder-%s: %s",
375 (*n_borders)++ == 0 ? " STYLE=\"" : "; ",
381 put_tfoot (struct html_driver *html, const struct table *t, bool *tfoot)
385 fprintf (html->file, "<TFOOT><TR><TD COLSPAN=%d>", table_nc (t));
389 fputs ("\n<BR>", html->file);
393 html_put_footnote_markers (struct html_driver *html,
394 const struct footnote **footnotes,
399 fputs ("<SUP>", html->file);
400 for (size_t i = 0; i < n_footnotes; i++)
402 const struct footnote *f = footnotes[i];
405 putc (',', html->file);
406 escape_string (html->file, f->marker,
407 strlen (f->marker), " ", "<BR>");
409 fputs ("</SUP>", html->file);
414 html_put_table_item_text (struct html_driver *html,
415 const struct table_item_text *text)
417 escape_string (html->file, text->content, strlen (text->content),
419 html_put_footnote_markers (html, text->footnotes, text->n_footnotes);
423 html_output_table (struct html_driver *html, const struct table_item *item)
425 const struct table *t = table_item_get_table (item);
429 fputs ("<TABLE>", html->file);
431 const struct table_item_text *caption = table_item_get_caption (item);
434 put_tfoot (html, t, &tfoot);
435 html_put_table_item_text (html, caption);
437 const struct footnote **f;
438 size_t n_footnotes = table_collect_footnotes (item, &f);
440 for (size_t i = 0; i < n_footnotes; i++)
443 put_tfoot (html, t, &tfoot);
444 fputs ("<SUP>", html->file);
445 escape_string (html->file, f[i]->marker, strlen (f[i]->marker),
447 fputs ("</SUP> ", html->file);
448 escape_string (html->file, f[i]->content, strlen (f[i]->content),
453 fputs ("</TD></TR></TFOOT>\n", html->file);
455 fputs ("<TBODY VALIGN=\"TOP\">\n", html->file);
457 const struct table_item_text *title = table_item_get_title (item);
458 const struct table_item_text *layers = table_item_get_layers (item);
461 fputs (" <CAPTION>", html->file);
463 html_put_table_item_text (html, title);
465 fputs ("<BR>\n", html->file);
467 html_put_table_item_text (html, layers);
468 fputs ("</CAPTION>\n", html->file);
471 for (y = 0; y < table_nr (t); y++)
475 fputs (" <TR>\n", html->file);
476 for (x = 0; x < table_nc (t); )
478 struct table_cell cell;
481 int colspan, rowspan;
482 int top, left, right, bottom;
484 table_get_cell (t, x, y, &cell);
485 if (x != cell.d[TABLE_HORZ][0] || y != cell.d[TABLE_VERT][0])
488 /* Output <TD> or <TH> tag. */
489 is_header = (y < table_ht (t)
490 || y >= table_nr (t) - table_hb (t)
492 || x >= table_nc (t) - table_hr (t));
493 tag = is_header ? "TH" : "TD";
494 fprintf (html->file, " <%s", tag);
496 enum table_halign halign = table_halign_interpret (
497 cell.style->cell_style.halign, cell.options & TAB_NUMERIC);
498 if (halign != TABLE_HALIGN_LEFT)
500 fprintf (html->file, " ALIGN=\"%s\"",
501 (halign == TABLE_HALIGN_RIGHT ? "RIGHT"
502 : halign == TABLE_HALIGN_CENTER ? "CENTER"
504 if (cell.style->cell_style.decimal_char)
505 fprintf (html->file, " CHAR=\"%c\"",
506 cell.style->cell_style.decimal_char);
509 if (cell.style->cell_style.valign != TABLE_VALIGN_TOP)
510 fprintf (html->file, " ALIGN=\"%s\"",
511 (cell.style->cell_style.valign == TABLE_VALIGN_BOTTOM
512 ? "BOTTOM" : "MIDDLE"));
514 colspan = table_cell_colspan (&cell);
516 fprintf (html->file, " COLSPAN=\"%d\"", colspan);
518 rowspan = table_cell_rowspan (&cell);
520 fprintf (html->file, " ROWSPAN=\"%d\"", rowspan);
527 struct cell_color color;
528 top = table_get_rule (t, TABLE_VERT, x, y, &color);
529 put_border (html->file, &n_borders, top, "top");
531 if (y + rowspan == table_nr (t))
533 bottom = table_get_rule (t, TABLE_VERT, x, y + rowspan,
535 put_border (html->file, &n_borders, bottom, "bottom");
538 left = table_get_rule (t, TABLE_HORZ, x, y, &color);
539 put_border (html->file, &n_borders, left, "left");
541 if (x + colspan == table_nc (t))
543 right = table_get_rule (t, TABLE_HORZ, x + colspan, y,
545 put_border (html->file, &n_borders, right, "right");
549 fputs ("\"", html->file);
552 putc ('>', html->file);
554 /* Output cell contents. */
555 const char *s = cell.text;
556 if (cell.options & TAB_FIX)
558 fputs ("<TT>", html->file);
559 escape_string (html->file, s, strlen (s), " ", "<BR>");
560 fputs ("</TT>", html->file);
564 s += strspn (s, CC_SPACES);
565 escape_string (html->file, s, strlen (s), " ", "<BR>");
568 html_put_footnote_markers (html, cell.footnotes, cell.n_footnotes);
570 /* Output </TH> or </TD>. */
571 fprintf (html->file, "</%s>\n", tag);
574 x = cell.d[TABLE_HORZ][1];
575 table_cell_free (&cell);
577 fputs (" </TR>\n", html->file);
580 fputs ("</TBODY></TABLE>\n\n", html->file);
583 struct output_driver_factory html_driver_factory =
584 { "html", "pspp.html", html_create };
586 static const struct output_driver_class html_driver_class =