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Annotation of /psiconv/trunk/program/psiconv/gen_html.c

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Revision 142 - (hide annotations)
Tue Jan 29 18:38:38 2002 UTC (22 years, 2 months ago) by frodo
File MIME type: text/plain
File size: 13417 byte(s)
(Frodo) DMALLOC support

1 frodo 14 /*
2     gen_html.c - Part of psiconv, a PSION 5 file formats converter
3     Copyright (c) 1999 Frodo Looijaard <frodol@dds.nl>
4    
5     This program is free software; you can redistribute it and/or modify
6     it under the terms of the GNU General Public License as published by
7     the Free Software Foundation; either version 2 of the License, or
8     (at your option) any later version.
9    
10     This program is distributed in the hope that it will be useful,
11     but WITHOUT ANY WARRANTY; without even the implied warranty of
12     MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
13     GNU General Public License for more details.
14    
15     You should have received a copy of the GNU General Public License
16     along with this program; if not, write to the Free Software
17     Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
18     */
19    
20     #include "config.h"
21     #include <stdio.h>
22     #include <string.h>
23     #include <stdlib.h>
24 frodo 58 #include "psiconv/data.h"
25     #include "psiconv/list.h"
26 frodo 14 #include "gen.h"
27 frodo 34 #include "psiconv.h"
28 frodo 14
29 frodo 142 #ifdef DMALLOC
30     #include "dmalloc.h"
31     #endif
32    
33 frodo 14 /* This determines for each character how it is displayed */
34     static const char *char_table[0x100] =
35     {
36     /* 0x00 */ "" ,"" ,"" ,"" ,"" ,"" ,"<P> ","<BR>" ,
37     /* 0x08 */ "<P>" ," " ,"" ,"" ,"" ,"" ,"" ,"" ,
38     /* 0x10 */ " " ,"" ,"" ,"" ,"" ,"" ,"" ,"" ,
39     /* 0x18 */ "" ,"" ,"" ,"" ,"" ,"" ,"" ,"" ,
40     /* 0x20 */ " " ,"!" ,"&quot;","#" ,"$" ,"%" ,"&amp;","'" ,
41     /* 0x28 */ "(" ,")" ,"*" ,"+" ,"," ,"-" ,"." ,"/" ,
42     /* 0x30 */ "0" ,"1" ,"2" ,"3" ,"4" ,"5" ,"6" ,"7" ,
43     /* 0x38 */ "8" ,"9" ,":" ,";" ,"&lt;" ,"=" ,"&gt;" ,"?" ,
44     /* 0x40 */ "@" ,"A" ,"B" ,"C" ,"D" ,"E" ,"F" ,"G" ,
45     /* 0x48 */ "H" ,"I" ,"J" ,"K" ,"L" ,"M" ,"N" ,"O" ,
46     /* 0x50 */ "P" ,"Q" ,"R" ,"S" ,"T" ,"U" ,"V" ,"W" ,
47     /* 0x58 */ "X" ,"Y" ,"Z" ,"[" ,"\\" ,"]" ,"^" ,"_" ,
48     /* 0x60 */ "`" ,"a" ,"b" ,"c" ,"d" ,"e" ,"f" ,"g" ,
49     /* 0x68 */ "h" ,"i" ,"j" ,"k" ,"l" ,"m" ,"n" ,"o" ,
50     /* 0x70 */ "p" ,"q" ,"r" ,"s" ,"t" ,"u" ,"v" ,"w" ,
51     /* 0x78 */ "x" ,"y" ,"z" ,"{" ,"|" ,"}" ,"~" ,"" ,
52     /* 0x80 */ "" ,"","&sbquot;","&fnof;","&bdquo;","&hellip;",
53     "&dagger;","&Dagger;",
54     /* 0x88 */ "^","&permil;","&Scaron;","&lang;","&OElig;","" ,"" ,"" ,
55     /* 0x90 */ "","&lsquo;","&rsquo;","&ldquo;","&rdquo;",
56     "&middot;","&ndash","&mdash",
57     /* 0x98 */ "&tilde;","&trade;","&scaron;","&rang;","&oelig;","","","&Yuml;",
58     /* 0xa0 */ "","&iexcl;","&cent;","&pound;",
59     "&curren;","&yen;","&brvbar;","&sect",
60     /* 0xa8 */ "&quot;","&copy;","a","&laquo;","&not;","-","&reg;","&macron;",
61     /* 0xb0 */ "&deg;","&plusmn;","&sup2;","&sup3;",
62     "&rsquot;","&micron;","&para;","&middot;",
63     /* 0xb8 */ "&comma;","&sup1","&deg;","&raquo;",
64     "&frac14;","&frac12;","&frac34;","&iquest;",
65     /* 0xc0 */ "&Agrave;","&Aacute;","&Acirc;","&Atilde;",
66     "&Auml;","&Aring;","&AElig;","&Ccedil;",
67     /* 0xc8 */ "&Egrave;","&Eacute;","&Ecirc;","&Euml;",
68     "&Igrave;","&Iacute;","&Icirc;","&Iuml;",
69     /* 0xd0 */ "&ETH;","&Ntilde;","&Ograve;","&Oacute;",
70     "&Ocirc;","&Otilde;","&Ouml;","&times;",
71     /* 0xd8 */ "&Oslash;","&Ugrave;","&Uacute;","&Ucirc;",
72     "&Uuml;","&Yacute;","&THORN;","&szlig;",
73     /* 0xe0 */ "&agrave;","&aacute;","&acirc;","&atilde;",
74     "&auml;","&aring;","&aelig;","&ccedil;",
75     /* 0xe8 */ "&egrave;","&eacute;","&ecirc;","&euml;",
76     "&igrave;","&iacute;","&icirc;","&iuml;",
77     /* 0xf0 */ "&eth;","&ntilde;","&ograve;","&oacute;",
78     "&ocirc;","&otilde;","&ouml;","&divide;",
79     /* 0xf8 */ "&oslash;","&ugrave;","&uacute;","&ucirc;",
80     "&uuml;","&yacute;","&thorn;","&yuml;"
81     };
82    
83     static psiconv_character_layout gen_base_char(const psiconv_font font,
84     const psiconv_color color,
85     const psiconv_color back_color);
86     static void diff_char(FILE *of, const psiconv_character_layout old,
87     const psiconv_character_layout new, int *flags);
88     static void gen_para(FILE *of, const psiconv_paragraph para,
89     const psiconv_character_layout base_char);
90    
91     static void psiconv_gen_html_word(FILE *of,psiconv_word_f wf);
92     static void psiconv_gen_html_texted(FILE *of,psiconv_texted_f tf);
93    
94     /* This is not necessarily the same as returned by basic_character_layout_status
95     This one is specific for the base point of HTML */
96     psiconv_character_layout gen_base_char(const psiconv_font font,
97     const psiconv_color color,
98     const psiconv_color back_color)
99     {
100 frodo 56 struct psiconv_character_layout_s base_char_struct =
101 frodo 14 {
102 frodo 20 NULL, /* color */
103     NULL, /* back_color */
104 frodo 14 13.0, /* font_size */
105     psiconv_bool_false, /* italic */
106     psiconv_bool_false, /* bold */
107     psiconv_normalscript, /* super_sub */
108     psiconv_bool_false, /* underline */
109 frodo 67 psiconv_bool_false, /* strikethrough */
110 frodo 20 NULL, /* font */
111 frodo 14 };
112 frodo 20 base_char_struct.color = color;
113     base_char_struct.back_color = back_color;
114     base_char_struct.font = font;
115 frodo 14 return psiconv_clone_character_layout(&base_char_struct);
116     }
117    
118     /* flags & 1: 0 if no <FONT> was yet generated.
119     flags & 2: 1 if at end-of-paragraph
120     */
121     void diff_char(FILE *of, const psiconv_character_layout old,
122     const psiconv_character_layout new,
123     int *flags)
124     {
125     int font_set = 0;
126    
127     if ((old->font_size != new->font_size) ||
128     (old->color->red != new->color->red) ||
129     (old->color->green != new->color->green) ||
130     (old->color->blue != new->color->blue) ||
131     (strcmp(old->font->name,new->font->name)) ||
132     (old->font->screenfont != new->font->screenfont) ||
133     ((*flags & 0x03) == 3)) {
134     if (old->italic)
135     fputs("</I>",of);
136     if (old->bold)
137     fputs("</B>",of);
138     if (old->underline)
139     fputs("</U>",of);
140 frodo 67 if (old->strikethrough)
141 frodo 14 fputs("</STRIKE>",of);
142     if (old->super_sub == psiconv_superscript)
143     fputs("</SUP>",of);
144     if (old->super_sub == psiconv_subscript)
145     fputs("</SUB>",of);
146     if ((*flags & 1) == 1)
147     fputs("</FONT>",of);
148     if ((*flags & 2) == 0) {
149     *flags |= 1;
150     fputs("<FONT SIZE=",of);
151     if (new->font_size <= 8.0)
152     fputs("1",of);
153     else if (new->font_size <= 10.0)
154     fputs("2",of);
155     else if (new->font_size <= 12.0)
156     fputs("3",of);
157     else if (new->font_size <= 14.0)
158     fputs("4",of);
159     else if (new->font_size <= 18.0)
160     fputs("5",of);
161     else if (new->font_size <= 24.0)
162     fputs("6",of);
163     else
164     fputs("7",of);
165     fprintf(of," COLOR=#%02x%02x%02x",new->color->red,new->color->green,
166     new->color->blue);
167 frodo 90 if (new->font->screenfont == psiconv_font_sansserif)
168 frodo 14 fprintf(of," FACE=\"%s, Sans-Serif\">",new->font->name);
169 frodo 90 else if (new->font->screenfont == psiconv_font_nonprop)
170 frodo 14 fprintf(of," FACE=\"%s, Monospace\">",new->font-> name);
171 frodo 90 else if (new->font->screenfont == psiconv_font_serif)
172 frodo 14 fprintf(of," FACE=\"%s, Serif\">",new->font-> name);
173     else
174     fprintf(of," FACE=\"%s, Serif\">",new->font-> name);
175     }
176     if (new->italic)
177     fputs("<I>",of);
178     if (new->bold)
179     fputs("<B>",of);
180     if (new->underline)
181     fputs("<U>",of);
182 frodo 67 if (new->strikethrough)
183 frodo 14 fputs("<STRIKE>",of);
184     if (new->super_sub == psiconv_superscript)
185     fputs("<SUP>",of);
186     if (new->super_sub == psiconv_subscript)
187     fputs("<SUB>",of);
188     } else {
189     if (font_set || (old->italic != new->italic)) {
190     if (old->italic)
191     fputs("</I>",of);
192     else
193     fputs("<I>",of);
194     }
195     if (old->bold != new->bold) {
196     if (old->bold)
197     fputs("</B>",of);
198     else
199     fputs("<B>",of);
200     }
201     if (old->underline != new->underline) {
202     if (old->underline)
203     fputs("</U>",of);
204     else
205     fputs("<U>",of);
206     }
207 frodo 67 if (old->strikethrough != new->strikethrough) {
208     if (old->strikethrough)
209 frodo 14 fputs("</STRIKE>",of);
210     else
211     fputs("<STRIKE>",of);
212     }
213     if (old->super_sub != new->super_sub) {
214     if (old->super_sub == psiconv_superscript)
215     fputs("</SUP>",of);
216     else if (old->super_sub == psiconv_subscript)
217     fputs("</SUB>",of);
218     if (new->super_sub == psiconv_superscript)
219     fputs("<SUP>",of);
220     else if (new->super_sub == psiconv_subscript)
221     fputs("<SUB>",of);
222     }
223     }
224     }
225    
226     void gen_para(FILE *of, const psiconv_paragraph para,
227     const psiconv_character_layout base_char)
228     {
229     int i,j,loc;
230     psiconv_character_layout cur_char;
231     psiconv_in_line_layout inl;
232     int flags = 0;
233    
234    
235     fputs("<P",of);
236     if (para->base_paragraph->justify_hor == psiconv_justify_left)
237     fputs(" ALIGN=left",of);
238     else if (para->base_paragraph->justify_hor == psiconv_justify_right)
239     fputs(" ALIGN=right",of);
240     else if (para->base_paragraph->justify_hor == psiconv_justify_centre)
241     fputs(" ALIGN=center",of);
242     else if (para->base_paragraph->justify_hor == psiconv_justify_full)
243     fputs(" ALIGN=left",of);
244     fputs(">",of);
245     if (para->base_paragraph->bullet->on)
246     fputs("<UL><LI>",of);
247    
248     cur_char = base_char;
249    
250     if (psiconv_list_length(para->in_lines) == 0) {
251     diff_char(of,cur_char,para->base_character,&flags);
252     cur_char = para->base_character;
253     }
254     loc = 0;
255    
256     for (i = 0; i < psiconv_list_length(para->in_lines); i++) {
257     inl = psiconv_list_get(para->in_lines,i);
258     diff_char(of,cur_char,inl->layout,&flags);
259     cur_char = inl->layout;
260     for (j = loc; j < inl->length + loc; j ++) {
261     fputs(char_table[(unsigned char) (para->text[j])],of);
262     }
263     loc = j;
264     }
265    
266     if (loc < strlen(para->text)) {
267     diff_char(of,cur_char,para->base_character,&flags);
268     cur_char = para->base_character;
269     for (j = loc; j < strlen(para->text); j ++) {
270     fputs(char_table[(unsigned char) (para->text[j])],of);
271     }
272     }
273    
274     if (strlen(para->text) == 0)
275     fputs("<BR>",of);
276    
277     flags |= 2;
278     diff_char(of,cur_char,base_char,&flags);
279    
280     if (para->base_paragraph->bullet->on)
281     fputs("</UL>",of);
282    
283     fputs("</P>\n",of);
284     }
285    
286 frodo 53 int psiconv_gen_html(const char * filename,const psiconv_file file,
287     const char *dest)
288 frodo 14 {
289 frodo 53 FILE *of = fopen(filename,"w");
290     if (! of)
291     return -1;
292    
293 frodo 34 if (file->type == psiconv_word_file) {
294 frodo 14 psiconv_gen_html_word(of,(psiconv_word_f) file->file);
295 frodo 34 } else if (file->type == psiconv_texted_file) {
296 frodo 14 psiconv_gen_html_texted(of,(psiconv_texted_f) file->file);
297 frodo 53 } else {
298     fclose(of);
299 frodo 34 return -1;
300 frodo 53 }
301     return fclose(of);
302 frodo 14 }
303    
304     void psiconv_gen_html_texted(FILE *of,psiconv_texted_f tf)
305     {
306     psiconv_character_layout base_char;
307     psiconv_paragraph para;
308     int i;
309    
310     /* We have nothing better */
311     base_char = psiconv_basic_character_layout();
312    
313     fputs("<!doctype html public \"-//W3C//DTD HTML 3.2 Final//EN\">", of);
314     fputs("\n<HTML>\n<HEAD>\n <META NAME=\"GENERATOR\"", of);
315     fputs(" CONTENT=\"psiconv-" VERSION "\">\n", of);
316     fputs("<BODY>\n",of);
317     for (i = 0; i < psiconv_list_length(tf->texted_sec->paragraphs); i++) {
318     para = psiconv_list_get(tf->texted_sec->paragraphs,i);
319     gen_para(of,para,base_char);
320     }
321     fputs("</BODY>\n</HTML>\n",of);
322     psiconv_free_character_layout(base_char);
323     }
324    
325    
326     void psiconv_gen_html_word(FILE *of,psiconv_word_f wf)
327     {
328     int i;
329     psiconv_paragraph para;
330     psiconv_color white,black;
331     psiconv_character_layout base_char;
332    
333     white = malloc(sizeof(*white));
334     black = malloc(sizeof(*black));
335     white->red = 0x00;
336     white->green = 0x00;
337     white->blue = 0x00;
338     black->red = 0xff;
339     black->green = 0xff;
340     black->blue = 0xff;
341    
342     /* To keep from generating a font desc for each line */
343     base_char = gen_base_char(wf->styles_sec->normal->character->font,
344     black,white);
345    
346     psiconv_free_color(black);
347     psiconv_free_color(white);
348    
349     fputs("<!doctype html public \"-//W3C//DTD HTML 3.2 Final//EN\">", of);
350     fputs("\n<HTML>\n<HEAD>\n <META NAME=\"GENERATOR\"", of);
351     fputs(" CONTENT=\"psiconv-" VERSION "\">\n", of);
352     fputs("<BODY>\n",of);
353    
354     for (i = 0; i < psiconv_list_length(wf->paragraphs); i++) {
355     para = psiconv_list_get(wf->paragraphs,i);
356     gen_para(of,para,base_char);
357     }
358     fputs("</BODY>\n</HTML>\n",of);
359     psiconv_free_character_layout(base_char);
360     }
361    
362 frodo 56 static struct psiconv_fileformat_s ff =
363 frodo 34 {
364     "HTML3",
365     "HTML 3.2, not verified so probably not completely compliant",
366     &psiconv_gen_html
367     };
368 frodo 14
369 frodo 34 void init_html(void)
370     {
371     psiconv_list_add(fileformat_list,&ff);
372     }

frodo@frodo.looijaard.name
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