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Revision 53 - (show annotations)
Sat Oct 21 00:49:13 2000 UTC (18 years, 10 months ago) by frodo
File MIME type: text/plain
File size: 17422 byte(s)
(Frodo) YES! Fixed everything - ImageMagick should now finally work!

1 /*
2 * gen_html4.c - Part of psiconv, a PSION 5 data formats converter
3 * Copyright (c) 1999 Andrew Johnson <anjohnson@iee.org>
4 * Portions Copyright (c) 1999 Frodo Looijaard <frodol@dds.nl>
5 *
6 * This program is free software; you can redistribute it and/or modify
7 * it under the terms of the GNU General Public License as published by
8 * the Free Software Foundation; either version 2 of the License, or
9 * (at your option) any later version.
10 *
11 * This program is distributed in the hope that it will be useful,
12 * but WITHOUT ANY WARRANTY; without even the implied warranty of
13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14 * GNU General Public License for more details.
15 *
16 * You should have received a copy of the GNU General Public License
17 * along with this program; if not, write to the Free Software
18 * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
19 */
20
21 #include "config.h"
22 #include <stdio.h>
23 #include <string.h>
24 #include <ctype.h>
25 #include <stdlib.h>
26 #include "data.h"
27 #include "list.h"
28 #include "gen.h"
29 #include "psiconv.h"
30
31 #ifndef TRUE
32 #define TRUE (0==0)
33 #endif
34
35 /*
36 * Various string tables for HTML4 settings
37 */
38
39 /* How to display each character */
40 static const char *char_table[0x100] = {
41 /* 0x00 */ "", "", "", "", "", "", "<BR>\n", "<BR>\n",
42 /* 0x08 */ "\n<HR>\n", "\t", "", "", "", "", "", "",
43 /* 0x10 */ " ", "", "", "", "", "", "", "",
44 /* 0x18 */ "", "", "", "", "", "", "", "",
45 /* 0x20 */ " ", "!", "&quot;", "#", "$", "%", "&amp;", "'",
46 /* 0x28 */ "(", ")", "*", "+", ",", "-", ".", "/",
47 /* 0x30 */ "0", "1", "2", "3", "4", "5", "6", "7",
48 /* 0x38 */ "8", "9", ":", ";", "&lt;", "=", "&gt;", "?",
49 /* 0x40 */ "@", "A", "B", "C", "D", "E", "F", "G",
50 /* 0x48 */ "H", "I", "J", "K", "L", "M", "N", "O",
51 /* 0x50 */ "P", "Q", "R", "S", "T", "U", "V", "W",
52 /* 0x58 */ "X", "Y", "Z", "[", "\\", "]", "^", "_",
53 /* 0x60 */ "`", "a", "b", "c", "d", "e", "f", "g",
54 /* 0x68 */ "h", "i", "j", "k", "l", "m", "n", "o",
55 /* 0x70 */ "p", "q", "r", "s", "t", "u", "v", "w",
56 /* 0x78 */ "x", "y", "z", "{", "|", "}", "~", "",
57 /* 0x80 */ "", "", "&#8218;", "&#402;",
58 "&#8222;", "&#8230;", "&#8224;", "&#8225;",
59 /* 0x88 */ "&#136;", "&#8240;", "&#352;", "<",
60 "&#338;", "", "", "",
61 /* 0x90 */ "", "&#8216;", "&#8217;", "&#8220;",
62 "&#8221;","&#8226;", "&#8211;", "&#8212;",
63 /* 0x98 */ "&#732;", "&#8482;", "&#353;", ">",
64 "&#339;", "", "", "&#376;",
65 /* 0xa0 */ "&nbsp;", "&iexcl;", "&cent;", "&pound;",
66 "&curren;", "&yen;", "&brvbar;", "&sect;",
67 /* 0xa8 */ "&uml;", "&copy;", "&ordf;", "&laquo;",
68 "&not;", "&shy;", "&reg;", "&#175;",
69 /* 0xb0 */ "&deg;", "&plusmn;", "&sup2;", "&sup3;",
70 "&acute;", "&micro;", "&para;", "&middot;",
71 /* 0xb8 */ "&cedil;", "&sup1;", "&ordm;", "&raquo;",
72 "&frac14;", "&frac12;", "&frac34;", "&iquest;",
73 /* 0xc0 */ "&Agrave;", "&Aacute;", "&Acirc;", "&Atilde;",
74 "&Auml;", "&Aring;", "&AElig;", "&Ccedil;",
75 /* 0xc8 */ "&Egrave;", "&Eacute;", "&Ecirc;", "&Euml;",
76 "&Igrave;", "&Iacute;", "&Icirc;", "&Iuml;",
77 /* 0xd0 */ "&ETH;", "&Ntilde;", "&Ograve;", "&Oacute;",
78 "&Ocirc;", "&Otilde;", "&Ouml;", "&times;",
79 /* 0xd8 */ "&Oslash;", "&Ugrave;", "&Uacute;", "&Ucirc;",
80 "&Uuml;", "&Yacute;", "&THORN;", "&szlig;",
81 /* 0xe0 */ "&agrave;", "&aacute;", "&acirc;", "&atilde;",
82 "&auml;", "&aring;", "&aelig;", "&ccedil;",
83 /* 0xe8 */ "&egrave;", "&eacute;", "&ecirc;", "&euml;",
84 "&igrave;", "&iacute;", "&icirc;", "&iuml;",
85 /* 0xf0 */ "&eth;", "&ntilde;", "&ograve;", "&oacute;",
86 "&ocirc;", "&otilde;", "&ouml;", "&divide;",
87 /* 0xf8 */ "&oslash;", "&ugrave;", "&uacute;", "&ucirc;",
88 "&uuml;", "&yacute;", "&thorn;", "&yuml;"
89 };
90
91 /* The order of these must match the enum psiconv_border_kind (data.h) */
92 static const char *border_strings[] = {
93 "none", "solid", "double", "dotted", "dashed", "dashed", "dotted"
94 };
95
96 /* The order of these must match the enum psiconv_justify (data.h) */
97 static const char *justify_strings[] = {
98 "left", "center", "right", "justify"
99 };
100
101 /* The order of these must match the enum psiconv_super_sub (data.h) */
102 static const char *vertical_strings[] = {
103 "baseline", "super", "sub"
104 };
105
106
107 /*
108 * Support routines for particular formatting structures
109 */
110
111 static void fput_name(FILE * of, const char *string) {
112 int i;
113
114 for (i = 0; i < strlen(string); i++)
115 if (isalnum(string[i]))
116 putc(string[i], of);
117 }
118
119 static void fput_text(FILE * of, const char *text, int length, int *pwasspace) {
120 int j;
121 int space;
122
123 for (j = 0; j < length; j++) {
124 space = (text[j] == ' ');
125 if (*pwasspace && space)
126 fputs("&nbsp;", of);
127 else
128 fputs(char_table[(unsigned char) (text[j])], of);
129 *pwasspace = space;
130 }
131 }
132
133 static const char *screenfont_name(psiconv_u8 screenfont)
134 {
135 if (screenfont == 1)
136 return "sans-serif";
137 else if (screenfont == 2)
138 return "monospace";
139 else if (screenfont == 3)
140 return "serif";
141 else
142 return "serif";
143 }
144
145 static const char *generic_font_family(const char *font_name) {
146 static const char *sans_font_names[] = {
147 "Arial", "Univers", "Sans Serif"
148 };
149 static const char *mono_font_names[] = {
150 "Courier New", "Courier", "Mono", "Lineprinter", "Elite", "Swiss",
151 "Courier (compressed)", "Courier (expanded)", "Letter Gothic"
152 };
153 int i;
154
155 for (i=0; i < sizeof(sans_font_names) / sizeof(sans_font_names[0]); i++)
156 if (!strcmp(font_name, sans_font_names[i]))
157 return "sans-serif";
158
159 for (i=0; i < sizeof(mono_font_names) / sizeof(mono_font_names[0]); i++)
160 if (!strcmp(font_name, mono_font_names[i]))
161 return "monospace";
162
163 return "serif";
164 }
165
166 static int colors_different(
167 const psiconv_color old,
168 const psiconv_color new)
169 {
170 return ((old->red != new->red) ||
171 (old->green != new->green) ||
172 (old->blue != new->blue));
173 }
174
175
176 /* Borders */
177 static int borders_different(
178 const psiconv_border old,
179 const psiconv_border new)
180 {
181 return (!old ||
182 (old->kind != new->kind) ||
183 colors_different(old->color, new->color) ||
184 (old->thickness != new->thickness));
185 }
186
187 static void fput_border(FILE * of,
188 const char *which,
189 const psiconv_border old,
190 const psiconv_border new)
191 {
192 /* If the border changed at all we'll set all parameters, as they're
193 * fairly closely linked and it's much easier to do it this way */
194 if (borders_different(old, new)) {
195 fprintf(of, "border-%s-style:%s;",
196 which, border_strings[new->kind]);
197 if ((new->kind != psiconv_border_none) &&
198 (new->color->red || new->color->green || new->color->blue))
199 fprintf(of, "border-%s-color:#%02x%02x%02x;", which,
200 new->color->red, new->color->green, new->color->blue);
201 if ((new->kind == psiconv_border_solid) ||
202 (new->kind == psiconv_border_double))
203 fprintf(of, "border-%s-width:%.0fpx;",
204 which, (new->thickness / 10.0) - 1);
205 else if (new->kind != psiconv_border_none)
206 fprintf(of, "border-%s-width:1px;", which);
207 }
208 }
209
210 /* Paragraph formats */
211 static int paragraph_layouts_different(
212 const psiconv_paragraph_layout old,
213 const psiconv_paragraph_layout new)
214 {
215 return ((old->top_space != new->top_space) ||
216 (old->indent_right != new->indent_right) ||
217 (old->bottom_space != new->bottom_space) ||
218 (old->indent_left != new->indent_left) ||
219 (old->indent_first != new->indent_first) ||
220 (old->justify_hor != new->justify_hor) ||
221 (old->interline_exact != new->interline_exact) ||
222 borders_different(old->left_border, new->left_border) ||
223 borders_different(old->right_border, new->right_border) ||
224 borders_different(old->top_border, new->top_border) ||
225 borders_different(old->bottom_border, new->bottom_border));
226 }
227
228 static void fput_paragraph_layout(FILE * of,
229 const psiconv_paragraph_layout old,
230 const psiconv_paragraph_layout new)
231 {
232 if (!old || (old->top_space != new->top_space))
233 fprintf(of, "margin-top:%.1fpt;", new->top_space);
234 if (!old || (old->indent_right != new->indent_right))
235 fprintf(of, "margin-right:%.2fcm;", new->indent_right);
236 if (!old || (old->bottom_space != new->bottom_space))
237 fprintf(of, "margin-bottom:%.1fpt;", new->bottom_space);
238 if (!old ||
239 (old->bullet->on != new->bullet->on) ||
240 (old->bullet->indent != new->bullet->indent) ||
241 (old->indent_left != new->indent_left) ||
242 (old->indent_first != new->indent_first)) {
243 psiconv_length_t indent = new->indent_first;
244 psiconv_length_t margin = new->indent_left;
245 /* Bullets with indent set cause strange margin behaviour: */
246 if (new->bullet->on && new->bullet->indent) {
247 if (indent > 0.0) {
248 margin += indent;
249 indent = new->indent_left - indent;
250 }
251 }
252 fprintf(of, "margin-left:%.2fcm;", margin);
253 fprintf(of, "text-indent:%.2fcm;", indent);
254 }
255 if (!old || (old->justify_hor != new->justify_hor))
256 fprintf(of, "text-align:%s;", justify_strings[new->justify_hor]);
257 if (!old || (old->interline_exact != new->interline_exact)) {
258 if (!old || old->interline_exact)
259 fputs("line-height:normal;", of);
260 else
261 fprintf(of, "line-height:%.1fpt;", new->interline);
262 }
263 fput_border(of, "left", old ? old->left_border : NULL,
264 new->left_border);
265 fput_border(of, "right", old ? old->right_border : NULL,
266 new->right_border);
267 fput_border(of, "top", old ? old->top_border : NULL,
268 new->top_border);
269 fput_border(of, "bottom", old ? old->bottom_border : NULL,
270 new->bottom_border);
271 }
272
273 /* Character formats */
274 static int character_layouts_different(
275 const psiconv_character_layout old,
276 const psiconv_character_layout new)
277 {
278 return ((old->font->screenfont != new->font->screenfont) ||
279 (strcmp(old->font->name,new->font->name)) ||
280 (old->font_size != new->font_size) ||
281 (old->color->red != new->color->red) ||
282 (old->color->green != new->color->green) ||
283 (old->color->blue != new->color->blue) ||
284 (old->back_color->red != new->back_color->red) ||
285 (old->back_color->green != new->back_color->green) ||
286 (old->back_color->blue != new->back_color->blue) ||
287 (old->italic != new->italic) ||
288 (old->bold != new->bold) ||
289 (old->super_sub != new->super_sub) ||
290 (old->underline != new->underline) ||
291 (old->strike_out != new->strike_out));
292 }
293
294 static void fput_character_layout(FILE * of,
295 const psiconv_character_layout old,
296 const psiconv_character_layout new,
297 psiconv_word_f wf)
298 {
299 if (!old || (old->font->screenfont != new->font->screenfont) ||
300 strcmp(old->font->name,new->font->name)) {
301 fprintf(of, "font-family:%s,%s,%s;", new->font->name,
302 generic_font_family(new->font->name),
303 screenfont_name(new->font->screenfont));
304 }
305 if (!old || (old->font_size != new->font_size))
306 fprintf(of, "font-size:%.1f%%;", 100.0 * new->font_size / 10.0);
307 if (!old || (old->bold != new->bold))
308 fprintf(of, "font-weight:%s;", new->bold ? "bold" : "normal");
309 if (!old || (old->italic != new->italic))
310 fprintf(of, "font-style:%s;", new->italic ? "italic" : "normal");
311 if (!old || (colors_different(old->color, new->color)))
312 fprintf(of, "color:#%02x%02x%02x;",
313 new->color->red, new->color->green, new->color->blue);
314 if (!old || (colors_different(old->back_color, new->back_color)))
315 fprintf(of, "background-color:#%02x%02x%02x;",
316 new->back_color->red, new->back_color->green, new->back_color->blue);
317 if (!old || (old->super_sub != new->super_sub))
318 fprintf(of, "vertical-align:%s;", vertical_strings[new->super_sub]);
319 if (!old || (old->underline != new->underline) ||
320 (old->strike_out != new->strike_out)) {
321 fputs("text-decoration:", of);
322 if (new->strike_out)
323 fputs("line-through ", of);
324 if (new->underline)
325 fputs("underline", of);
326 else if (!new->strike_out)
327 fputs("none", of);
328 fputs(";", of);
329 }
330 }
331
332
333 /* Formatted paragraphs */
334 static void fput_para(FILE * of,
335 const psiconv_paragraph para,
336 psiconv_word_f wf)
337 {
338 psiconv_paragraph_layout base_para = para->base_paragraph;
339 psiconv_character_layout base_char = para->base_character;
340 psiconv_character_layout cur_char;
341 psiconv_character_layout *layout_stack;
342 psiconv_in_line_layout inl;
343 psiconv_word_style sty;
344 int spans = 0;
345 int wasspace = 0;
346 int i, j, loc;
347
348 layout_stack = calloc(psiconv_list_length(para->in_lines),
349 sizeof(*layout_stack));
350 fputs("<P", of);
351 sty = psiconv_get_style(wf->styles_sec, para->base_style);
352 cur_char = sty->character;
353
354 if (sty->name) {
355 fputs(" CLASS=\"", of);
356 fput_name(of, sty->name);
357 putc('"', of);
358 }
359
360 if (paragraph_layouts_different(sty->paragraph, base_para) ||
361 character_layouts_different(cur_char, base_char)) {
362 fputs(" STYLE=\"", of);
363 fput_paragraph_layout(of, sty->paragraph, base_para);
364 fput_character_layout(of, cur_char, base_char, wf);
365 cur_char = base_char;
366 putc('"', of);
367 }
368 putc('>', of);
369
370 if (base_para->bullet->on) {
371 fputs("<SPAN STYLE=\"", of);
372 if (base_para->bullet->font != base_char->font) {
373 fprintf(of, "font-family:%s,%s,%s;",
374 base_para->bullet->font->name,
375 generic_font_family(base_para->bullet->font->name),
376 screenfont_name(base_para->bullet->font->screenfont));
377 }
378 if (base_para->bullet->font_size != base_char->font_size)
379 fprintf(of, "font-size:%.1f%%;",
380 100.0 * base_para->bullet->font_size / 10.0);
381 if ((base_para->bullet->color->red != base_char->color->red) ||
382 (base_para->bullet->color->green != base_char->color->green) ||
383 (base_para->bullet->color->blue != base_char->color->blue))
384 fprintf(of, "color:#%02x%02x%02x;",
385 base_para->bullet->color->red,
386 base_para->bullet->color->green,
387 base_para->bullet->color->blue);
388 fprintf(of, "\">%s </SPAN>",
389 char_table[base_para->bullet->character]);
390 wasspace = TRUE;
391 }
392
393 loc = 0;
394 for (i = 0; i < psiconv_list_length(para->in_lines); i++) {
395 inl = psiconv_list_get(para->in_lines, i);
396 if (character_layouts_different(cur_char, inl->layout)) {
397 for (j = 0; j < spans; j++)
398 if (!character_layouts_different(inl->layout, layout_stack[j]))
399 break;
400 if (j < spans) {
401 while (spans > j) {
402 fputs("</SPAN>",of);
403 spans--;
404 }
405 } else {
406 fputs("<SPAN STYLE=\"", of);
407 fput_character_layout(of, cur_char, inl->layout, wf);
408 fputs("\">",of);
409 layout_stack[spans++] = cur_char;
410 }
411 cur_char = inl->layout;
412 }
413 fput_text(of, &para->text[loc], inl->length, &wasspace);
414 loc += inl->length;
415 }
416
417 while (spans > 0) {
418 fputs("</SPAN>",of);
419 spans--;
420 }
421
422 if (loc < strlen(para->text)) {
423 fput_text(of, &para->text[loc], strlen(para->text) - loc, &wasspace);
424 }
425
426 if (strlen(para->text) == 0)
427 fputs("&nbsp;", of);
428
429 fputs("</P>\n", of);
430 free(layout_stack);
431 }
432
433 static void fput_style(FILE * of,
434 const psiconv_word_style normal,
435 const psiconv_word_style sty,
436 psiconv_word_f wf)
437 {
438 if (sty->name == NULL)
439 fputs(" P {", of);
440 else {
441 fputs(" P.", of);
442 fput_name(of, sty->name);
443 fputs(" {", of);
444 }
445 fput_paragraph_layout(of, normal ? normal->paragraph : NULL, sty->paragraph);
446 fput_character_layout(of, normal ? normal->character : NULL, sty->character, wf);
447 fputs("}\n", of);
448 }
449
450 static int psiconv_gen_html4(const char *filename, const psiconv_file file,
451 const char *dest)
452 {
453 FILE * of;
454 int i;
455 psiconv_paragraph para;
456 psiconv_word_style normal, sty;
457 psiconv_word_f wf;
458
459 if (file->type == psiconv_word_file)
460 wf = file->file;
461 else {
462 /* Fall back on the normal HTML generator */
463 return psiconv_gen_html(filename,file,dest);
464 }
465
466 if (! (of = fopen(filename,"w")))
467 return -1;
468
469 fputs("<!doctype html public \"-//W3C//DTD HTML 4.0 STRICT//EN\">", of);
470 fputs("\n<HTML>\n<HEAD>\n <META NAME=\"GENERATOR\"", of);
471 fputs(" CONTENT=\"psiconv-" VERSION "\">\n", of);
472
473 if (psiconv_list_length(wf->page_sec->header->text->paragraphs) > 0) {
474 fputs(" <TITLE>", of);
475 para = psiconv_list_get(wf->page_sec->header->text->paragraphs, 0);
476 i = 0;
477 fput_text(of, para->text, strlen(para->text), &i);
478 fputs("</TITLE>\n", of);
479 }
480
481 normal = wf->styles_sec->normal;
482 fputs(" <STYLE TYPE=\"text/css\"><!--\n", of);
483 fprintf(of," BODY { background-color: #%02x%02x%02x }\n",
484 normal->paragraph->back_color->red,
485 normal->paragraph->back_color->green,
486 normal->paragraph->back_color->blue);
487 fput_style(of, NULL, normal, wf);
488 for (i = 0; i < psiconv_list_length(wf->styles_sec->styles); i++) {
489 sty = psiconv_list_get(wf->styles_sec->styles, i);
490 fput_style(of, normal, sty, wf);
491 }
492 fputs(" --></STYLE>\n</HEAD>\n<BODY>\n", of);
493 for (i = 0; i < psiconv_list_length(wf->paragraphs); i++) {
494 para = psiconv_list_get(wf->paragraphs, i);
495 fput_para(of, para, wf);
496 }
497 fputs("</BODY>\n</HTML>\n", of);
498
499 return fclose(of);
500 }
501
502 static struct psiconv_fileformat ff =
503 {
504 "HTML4",
505 "HTML 4.0 with cascading style sheets",
506 psiconv_gen_html4
507 };
508
509 void init_html4(void)
510 {
511 psiconv_list_add(fileformat_list,&ff);
512 }
513

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