/[public]/psiconv/trunk/lib/psiconv/generate_common.c
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Contents of /psiconv/trunk/lib/psiconv/generate_common.c

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Revision 88 - (show annotations)
Sun Dec 31 01:36:30 2000 UTC (18 years, 11 months ago) by frodo
File MIME type: text/plain
File size: 12697 byte(s)
(Frodo) Empty Word and TextEd documents work!

1 /*
2 generate_common.c - Part of psiconv, a PSION 5 file formats converter
3 Copyright (c) 2000 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 "compat.h"
22 #include <stdlib.h>
23 #include <string.h>
24
25 #include "generate_routines.h"
26 #include "error.h"
27
28 static int psiconv_write_layout_section(psiconv_buffer buf,
29 const psiconv_text_and_layout value,
30 const psiconv_word_styles_section styles,
31 int with_styles);
32
33 /* Maybe use a psiconv_header_section variable instead? */
34 int psiconv_write_header_section(psiconv_buffer buf,psiconv_u32 uid1,
35 psiconv_u32 uid2, psiconv_u32 uid3)
36 {
37 int res;
38 if ((res = psiconv_write_u32(buf,uid1)))
39 return res;
40 if ((res = psiconv_write_u32(buf,uid2)))
41 return res;
42 if ((res = psiconv_write_u32(buf,uid3)))
43 return res;
44 return psiconv_write_u32(buf,psiconv_checkuid(uid1,uid2,uid3));
45 }
46
47 int psiconv_write_section_table_section(psiconv_buffer buf,
48 const psiconv_section_table_section value)
49 {
50 int res,i;
51 psiconv_section_table_entry entry;
52
53 if (!value) {
54 psiconv_warn(0,psiconv_buffer_length(buf),"Null section table section");
55 return -PSICONV_E_GENERATE;
56 }
57
58 if ((res = psiconv_write_u8(buf,2 * psiconv_list_length(value))))
59 return res;
60 for (i = 0; i < psiconv_list_length(value); i++) {
61 if (!(entry = psiconv_list_get(value,i))) {
62 psiconv_warn(0,psiconv_buffer_length(buf),"Massive memory corruption");
63 return -PSICONV_E_NOMEM;
64 }
65 if ((res = psiconv_write_u32(buf,entry->id)))
66 return res;
67 if ((res = psiconv_write_offset(buf,entry->offset)))
68 return res;
69 }
70 return -PSICONV_E_OK;
71 }
72
73 int psiconv_write_application_id_section(psiconv_buffer buf,psiconv_u32 id,
74 const psiconv_string_t text)
75 {
76 int res;
77 if ((res = psiconv_write_u32(buf,id)))
78 return res;
79 return psiconv_write_string(buf,text);
80 }
81
82 int psiconv_write_text_section(psiconv_buffer buf,
83 const psiconv_text_and_layout value)
84 {
85 int res;
86 psiconv_buffer extra_buf;
87 int i,j;
88 psiconv_paragraph paragraph;
89
90 if (!value) {
91 psiconv_warn(0,psiconv_buffer_length(buf),"Null text section");
92 return -PSICONV_E_GENERATE;
93 }
94
95 if (psiconv_list_length(value)) {
96 if (!(extra_buf = psiconv_buffer_new()))
97 return -PSICONV_E_NOMEM;
98 for (i = 0; i < psiconv_list_length(value); i++) {
99 if (!(paragraph = psiconv_list_get(value,i))) {
100 psiconv_warn(0,psiconv_buffer_length(buf),"Massive memory corruption");
101 res = -PSICONV_E_OTHER;
102 goto ERROR;
103 }
104 for (j = 0; j < strlen(paragraph->text); j++)
105 if ((res = psiconv_write_u8(extra_buf,paragraph->text[j])))
106 goto ERROR;
107 psiconv_write_u8(extra_buf,0x06);
108 }
109 if ((res = psiconv_write_X(buf,psiconv_buffer_length(extra_buf))))
110 goto ERROR;
111 res = psiconv_buffer_concat(buf,extra_buf);
112 } else
113 /* Hack: empty text sections are just not allowed */
114 return psiconv_write_u16(buf,0x0602);
115
116 ERROR:
117 psiconv_buffer_free(extra_buf);
118 return res;
119 }
120
121 int psiconv_write_layout_section(psiconv_buffer buf,
122 const psiconv_text_and_layout value,
123 const psiconv_word_styles_section styles,
124 int with_styles)
125 {
126 typedef struct psiconv_paragraph_type_list_s
127 {
128 psiconv_character_layout character;
129 psiconv_paragraph_layout paragraph;
130 psiconv_u8 style;
131 psiconv_u8 nr;
132 } *psiconv_paragraph_type_list;
133 psiconv_list paragraph_type_list; /* Of psiconv_paragraph_type_list_s */
134 psiconv_paragraph_type_list paragraph_type;
135 struct psiconv_paragraph_type_list_s new_type;
136 psiconv_buffer buf_types,buf_elements,buf_inlines;
137 psiconv_paragraph paragraph;
138 psiconv_in_line_layout in_line;
139 psiconv_word_style style;
140 int i,j,para_type,nr_of_inlines=0,res,ptl_length,pel_length;
141
142 if (!value) {
143 psiconv_warn(0,psiconv_buffer_length(buf),"Null text section");
144 return -PSICONV_E_GENERATE;
145 }
146
147 if (!(paragraph_type_list = psiconv_list_new(sizeof(new_type)))) {
148 res = -PSICONV_E_NOMEM;
149 goto ERROR1;
150 }
151
152 if (!(buf_types = psiconv_buffer_new())) {
153 res = -PSICONV_E_NOMEM;
154 goto ERROR2;
155 }
156
157 if (!(buf_elements = psiconv_buffer_new())) {
158 res = -PSICONV_E_NOMEM;
159 goto ERROR3;
160 }
161
162 if (!(buf_inlines = psiconv_buffer_new())) {
163 res = -PSICONV_E_NOMEM;
164 goto ERROR4;
165 }
166
167 for (i = 0; i < psiconv_list_length(value); i++) {
168 if (!(paragraph = psiconv_list_get(value,i))) {
169 psiconv_warn(0,psiconv_buffer_length(buf),"Massive memory corruption");
170 res = -PSICONV_E_OTHER;
171 goto ERROR5;
172 }
173 if ((res = psiconv_write_u32(buf_elements,strlen(paragraph->text)+1)))
174 goto ERROR5;
175
176 if (psiconv_list_length(paragraph->in_lines)) {
177 /* Inline layouts, so we generate a paragraph element and inline
178 elements */
179 if ((res = psiconv_write_u8(buf_elements,0x00)))
180 goto ERROR5;
181 if (!(style = psiconv_get_style(styles,paragraph->base_style))) {
182 psiconv_warn(0,psiconv_buffer_length(buf),"Unknown style");
183 res = -PSICONV_E_GENERATE;
184 goto ERROR5;
185 }
186 if ((res = psiconv_write_paragraph_layout_list(buf_elements,
187 paragraph->base_paragraph,
188 style->paragraph)))
189 goto ERROR5;
190 if (with_styles)
191 if ((res = psiconv_write_u8(buf_elements,paragraph->base_style)))
192 goto ERROR5;
193 if ((res = psiconv_write_u32(buf_elements,
194 psiconv_list_length(paragraph->in_lines))))
195 goto ERROR5;
196
197 /* Generate the inlines. NB: Against what are all settings relative?!? */
198 for (j = 0; j < psiconv_list_length(paragraph->in_lines); j++) {
199 nr_of_inlines ++;
200 if (!(in_line = psiconv_list_get(paragraph->in_lines,j))) {
201 psiconv_warn(0,psiconv_buffer_length(buf),"Massive memory corruption");
202 res = -PSICONV_E_OTHER;
203 goto ERROR5;
204 }
205 if ((res = psiconv_write_u8(buf_inlines,0x00)))
206 goto ERROR5;
207 if ((res = psiconv_write_u32(buf_inlines,in_line->length)))
208 goto ERROR5;
209 if ((res = psiconv_write_character_layout_list(buf_inlines,
210 in_line->layout,
211 style->character)))
212 goto ERROR5;
213 }
214 } else {
215 /* No inline layouts, so we generate a paragraph type list */
216 para_type = 0;
217 for (j = 0; j < psiconv_list_length(paragraph_type_list); j++) {
218 if (!(paragraph_type = psiconv_list_get(paragraph_type_list,j))) {
219 psiconv_warn(0,psiconv_buffer_length(buf),"Massive memory corruption");
220 res = -PSICONV_E_OTHER;
221 goto ERROR5;
222 }
223 if ((paragraph->base_style == paragraph_type->style) &&
224 !psiconv_compare_character_layout(paragraph->base_character,
225 paragraph_type->character) &&
226 !psiconv_compare_paragraph_layout(paragraph->base_paragraph,
227 paragraph_type->paragraph)) {
228 para_type = paragraph_type->nr;
229 break;
230 }
231 }
232 if (!para_type) {
233 /* We need to add a new entry */
234 para_type = new_type.nr = j+1;
235 /* No need to copy them, we won't change them anyway */
236 new_type.paragraph = paragraph->base_paragraph;
237 new_type.character = paragraph->base_character;
238 new_type.style = paragraph->base_style;
239 paragraph_type = &new_type;
240 if ((res = psiconv_list_add(paragraph_type_list,paragraph_type)))
241 goto ERROR5;
242 if ((res = psiconv_write_u32(buf_types,paragraph_type->nr)))
243 goto ERROR5;
244 if (!(style = psiconv_get_style(styles,paragraph_type->style))) {
245 psiconv_warn(0,psiconv_buffer_length(buf),"Unknown style");
246 res = -PSICONV_E_GENERATE;
247 goto ERROR5;
248 }
249 if ((res = psiconv_write_paragraph_layout_list(buf_types,
250 paragraph_type->paragraph,style->paragraph)))
251 goto ERROR5;
252 if (with_styles)
253 if ((res = psiconv_write_u8(buf_types,paragraph_type->style)))
254 goto ERROR5;
255 if ((res = psiconv_write_character_layout_list(buf_types,
256 paragraph_type->character,style->character)))
257 goto ERROR5;
258 }
259 if ((res = psiconv_write_u8(buf_elements,para_type)))
260 goto ERROR5;
261 }
262 }
263
264 /* HACK: special case: no paragraphs at all. We need to improvize. */
265 if (!psiconv_list_length(value)) {
266 if ((res = psiconv_write_u32(buf_types,1)))
267 goto ERROR5;
268 if ((res = psiconv_write_u32(buf_types,0)))
269 goto ERROR5;
270 if (with_styles)
271 if ((res = psiconv_write_u8(buf_types,0)))
272 goto ERROR5;
273 if ((res = psiconv_write_u32(buf_types,0)))
274 goto ERROR5;
275
276 if ((res = psiconv_write_u32(buf_elements,1)))
277 goto ERROR5;
278 if ((res = psiconv_write_u8(buf_elements,1)))
279 goto ERROR5;
280 pel_length = 1;
281 ptl_length = 1;
282 } else {
283 pel_length = psiconv_list_length(value);
284 ptl_length = psiconv_list_length(paragraph_type_list);
285 }
286
287 /* Now append everything */
288 if ((res = psiconv_write_u16(buf,with_styles?0x0001:0x0000)))
289 goto ERROR5;
290 if ((res = psiconv_write_u8(buf, ptl_length)))
291 goto ERROR5;
292 if ((res = psiconv_buffer_concat(buf,buf_types)))
293 goto ERROR5;
294 if ((res = psiconv_write_u32(buf,pel_length)))
295 goto ERROR5;
296 if ((res = psiconv_buffer_concat(buf,buf_elements)))
297 goto ERROR5;
298 if ((res = psiconv_write_u32(buf,nr_of_inlines)))
299 goto ERROR5;
300 res = psiconv_buffer_concat(buf,buf_inlines);
301
302 ERROR5:
303 psiconv_buffer_free(buf_inlines);
304 ERROR4:
305 psiconv_buffer_free(buf_elements);
306 ERROR3:
307 psiconv_buffer_free(buf_types);
308 ERROR2:
309 psiconv_list_free(paragraph_type_list);
310 ERROR1:
311 return res;
312 }
313
314 int psiconv_write_styled_layout_section(psiconv_buffer buf,
315 psiconv_text_and_layout result,
316 psiconv_word_styles_section styles)
317 {
318 return psiconv_write_layout_section(buf,result,styles,1);
319 }
320
321 int psiconv_write_styleless_layout_section(psiconv_buffer buf,
322 const psiconv_text_and_layout value,
323 const psiconv_character_layout base_char,
324 const psiconv_paragraph_layout base_para)
325 {
326 int res = 0;
327 psiconv_word_styles_section styles_section;
328
329 if (!(styles_section = malloc(sizeof(*styles_section))))
330 goto ERROR1;
331 if (!(styles_section->normal = malloc(sizeof(*styles_section->normal))))
332 goto ERROR2;
333 if (!(styles_section->normal->character =
334 psiconv_clone_character_layout(base_char)))
335 goto ERROR3;
336 if (!(styles_section->normal->paragraph =
337 psiconv_clone_paragraph_layout(base_para)))
338 goto ERROR4;
339 styles_section->normal->hotkey = 0;
340 if (!(styles_section->normal->name = strdup("")))
341 goto ERROR5;
342 if (!(styles_section->styles = psiconv_list_new(sizeof(
343 struct psiconv_word_style_s))))
344 goto ERROR6;
345
346 res = psiconv_write_layout_section(buf,value,styles_section,0);
347 psiconv_free_word_styles_section(styles_section);
348 return res;
349
350 ERROR6:
351 free(styles_section->normal->name);
352 ERROR5:
353 psiconv_free_paragraph_layout(styles_section->normal->paragraph);
354 ERROR4:
355 psiconv_free_character_layout(styles_section->normal->character);
356 ERROR3:
357 free(styles_section->normal);
358 ERROR2:
359 free(styles_section);
360 ERROR1:
361 if (!res)
362 return -PSICONV_E_NOMEM;
363 else
364 return res;
365 }

frodo@frodo.looijaard.name
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