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Contents of /psiconv/trunk/lib/psiconv/parse_word.c

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Revision 83 - (show annotations)
Wed Dec 27 23:56:18 2000 UTC (18 years, 11 months ago) by frodo
File MIME type: text/plain
File size: 14035 byte(s)
(Frodo) Fixed a couple of bugs with bullets and styles - even in the parser

1 /*
2 parse_word.c - Part of psiconv, a PSION 5 file formats converter
3 Copyright (c) 1999, 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
23 #include <stdlib.h>
24
25 #include "parse_routines.h"
26 #include "error.h"
27
28 int psiconv_parse_word_status_section(const psiconv_buffer buf, int lev,
29 psiconv_u32 off, int *length,
30 psiconv_word_status_section *result)
31 {
32 int res=0;
33 int len=0;
34 psiconv_u32 temp;
35 int leng;
36
37 psiconv_progress(lev+1,off,"Going to read the word status section");
38 if (!(*result = malloc(sizeof(**result))))
39 goto ERROR1;
40
41 psiconv_progress(lev+2,off+len,
42 "Going to read the initial byte (%02x expected)",0x02);
43 temp = psiconv_read_u8(buf,lev+2,off+len,&res);
44 if (res)
45 goto ERROR2;
46 if (temp != 0x02) {
47 psiconv_warn(lev+2,off+len,
48 "Word status section initial byte unknown value (ignored)");
49 psiconv_debug(lev+2,off+len,"Initial byte: %02x",temp);
50 }
51 len ++;
52
53 psiconv_progress(lev+2,off+len,
54 "Going to read the first byte of display flags");
55 temp = psiconv_read_u8(buf,lev+2,off+len,&res);
56 if (res)
57 goto ERROR2;
58
59 (*result)->show_tabs = temp&0x01 ? psiconv_bool_true : psiconv_bool_false;
60 psiconv_debug(lev+2,off+len,"Show tabs: %02x",(*result)->show_tabs);
61 (*result)->show_spaces = temp&0x02 ? psiconv_bool_true : psiconv_bool_false;
62 psiconv_debug(lev+2,off+len,"Show spaces: %02x",(*result)->show_spaces);
63 (*result)->show_paragraph_ends = temp &0x04 ? psiconv_bool_true :
64 psiconv_bool_false;
65 psiconv_debug(lev+2,off+len,"Show paragraph ends: %02x",
66 (*result)->show_paragraph_ends);
67 (*result)->show_line_breaks = temp & 0x08 ? psiconv_bool_true :
68 psiconv_bool_false;
69 psiconv_debug(lev+2,off+len,"Show line breaks: %02x",
70 (*result)->show_line_breaks);
71 (*result)->show_hard_minus = temp & 0x20 ? psiconv_bool_true :
72 psiconv_bool_false;
73 psiconv_debug(lev+2,off+len,"Show hard minus: %02x",
74 (*result)->show_hard_minus);
75 (*result)->show_hard_space = temp & 0x40 ? psiconv_bool_true :
76 psiconv_bool_false;
77 psiconv_debug(lev+2,off+len,"Show hard space: %02x",
78 (*result)->show_hard_space);
79 if (temp & 0x90) {
80 psiconv_warn(lev+2,off+len,"Word status section first byte of display "
81 "flags contains unknown flags (ignored)");
82 psiconv_debug(lev+2,off+len,"Unknown flags: %02x",temp & 0x90);
83 }
84 len ++;
85
86 psiconv_progress(lev+2,off+len,"Going to read second byte of display flags");
87 temp = psiconv_read_u8(buf,lev+2,off+len,&res);
88 if (res)
89 goto ERROR2;
90
91 (*result)->show_full_pictures = temp & 0x01 ? psiconv_bool_true :
92 psiconv_bool_false;
93 psiconv_debug(lev+2,off+len,"Show full pictures: %02x",
94 (*result)->show_full_pictures);
95 (*result)->show_full_graphs = temp & 0x02 ? psiconv_bool_true :
96 psiconv_bool_false;
97 psiconv_debug(lev+2,off+len,"Show full graphs: %02x",
98 (*result)->show_full_graphs);
99 if (temp & 0xfc) {
100 psiconv_warn(lev+2,off+len,"Word status section second byte of display "
101 "flags contains unknown flags (ignored)");
102 psiconv_debug(lev+2,off+len,"Unknown flags: %02x",temp & 0xfc);
103 }
104 len ++;
105
106 psiconv_progress(lev+2,off+len,"Going to read top toolbar setting");
107 if ((res = psiconv_parse_bool(buf,lev+2,off+len,&leng,
108 &(*result)->show_top_toolbar)))
109 goto ERROR2;
110 len += leng;
111
112 psiconv_progress(lev+2,off+len,"Going to read side toolbar setting");
113 if ((res = psiconv_parse_bool(buf,lev+2,off+len,&leng,
114 &(*result)->show_side_toolbar)))
115 goto ERROR2;
116 len += leng;
117
118 psiconv_progress(lev+2,off+len,"Going to read operational flags");
119 temp = psiconv_read_u8(buf,lev+2,off+len,&res);
120 if (res)
121 goto ERROR2;
122 (*result)->fit_lines_to_screen = temp & 0x08 ? psiconv_bool_true :
123 psiconv_bool_false;
124 psiconv_debug(lev+2,off+len,"Fit lines to screen: %02x",
125 (*result)->fit_lines_to_screen);
126 if (temp & 0xf7) {
127 psiconv_warn(lev+2,off+len,"Word status section operational flags "
128 "contains unknown flags (ignored)");
129 psiconv_debug(lev+2,off+len,"Unknown flags: %02x",temp & 0xfc);
130 }
131 len ++;
132
133 psiconv_progress(lev+2,off+len,"Going to read cursor position");
134 (*result)->cursor_position = psiconv_read_u32(buf,lev+2,off + len,&res);
135 if (res)
136 goto ERROR2;
137 psiconv_debug(lev+2,off+len,"Cursor position: %08x",
138 (*result)->cursor_position);
139 len += 0x04;
140
141 psiconv_progress(lev+2,off+len,"Going to read display size");
142 (*result)->display_size = psiconv_read_u32(buf,lev+2,off + len,&res);
143 if (res)
144 goto ERROR2;
145 psiconv_debug(lev+2,off+len,"Display size: %08x",
146 (*result)->display_size);
147 len += 0x04;
148
149 if (length)
150 *length = len;
151
152 psiconv_progress(lev,off+len-1,
153 "End of word status section (total length: %08x)", len);
154 return 0;
155
156 ERROR2:
157 free (*result);
158 ERROR1:
159 psiconv_warn(lev+1,off,"Reading of Word Status Section failed");
160 if (length)
161 *length = 0;
162 if (!res)
163 return -PSICONV_E_NOMEM;
164 else
165 return res;
166 }
167
168 int psiconv_parse_word_styles_section(const psiconv_buffer buf, int lev,
169 psiconv_u32 off, int *length,
170 psiconv_word_styles_section *result)
171 {
172 int res=0;
173 int len=0;
174 int leng,i,nr,j;
175 psiconv_word_style style;
176 psiconv_u32 temp;
177
178 psiconv_progress(lev+1,off,"Going to read the word styles section");
179 if (!(*result = malloc(sizeof(**result))))
180 goto ERROR1;
181
182 psiconv_progress(lev+2,off+len,"Going to read style normal");
183 if (!(style = malloc(sizeof(*style))))
184 goto ERROR2;
185 style->name = NULL;
186 if (!(style->paragraph = psiconv_basic_paragraph_layout()))
187 goto ERROR2_1;
188 psiconv_progress(lev+3,off+len,"Going to read the paragraph codes");
189 if ((res = psiconv_parse_paragraph_layout_list(buf,lev+3,off+len,&leng,
190 style->paragraph)))
191 goto ERROR2_2;
192 len += leng;
193 psiconv_progress(lev+3,off+len,"Going to read the character codes");
194 if (!(style->character = psiconv_basic_character_layout()))
195 goto ERROR2_2;
196 if ((res = psiconv_parse_character_layout_list(buf,lev+3,off+len,&leng,
197 style->character)))
198 goto ERROR2_3;
199 len += leng;
200 psiconv_progress(lev+3,off+len,"Going to read the hotkey");
201 temp = psiconv_read_u32(buf,lev+3,off+len,&res);
202 if (res)
203 goto ERROR2_3;
204 if (temp & 0xffffff00) {
205 psiconv_warn(lev+3,off+len,
206 "Normal style hotkey has unknown value (ignored)");
207 psiconv_debug(lev+3,off+len,"Hotkey value %08x",temp);
208 temp = 0;
209 }
210 style->hotkey = temp & 0x000000ff;
211 if ((style->hotkey >= 32) && (style->hotkey < 127))
212 psiconv_debug(lev+3,off+len,"Hotkey: %c",style->hotkey);
213 else if (style->hotkey == 0x00)
214 psiconv_debug(lev+3,off+len,"Hotkey: <none>");
215 else
216 psiconv_debug(lev+3,off+len,"Hotkey: %02x",style->hotkey);
217 (*result)->normal = style;
218 len += 0x04;
219
220 psiconv_progress(lev+2,off+len,"Going to read hotkeys list");
221 if (!((*result)->styles = psiconv_list_new(sizeof(*style))))
222 goto ERROR3;
223 if (!(style = malloc(sizeof(*style)))) {
224 goto ERROR3_1;
225 }
226
227 psiconv_progress(lev+3,off+len,"Going to read the number of entries");
228 nr = psiconv_read_u8(buf,lev+3,off+len,&res);
229 if (res)
230 goto ERROR3_2;
231 len ++;
232 psiconv_debug(lev+3,off+len,"Nummer of hotkeys: %02x",nr);
233 for (i = 0; i < nr; i ++) {
234 temp = psiconv_read_u32(buf,lev+2,off+len,&res);
235 if (res)
236 goto ERROR3_2;
237 if (temp & 0xffffff00) {
238 psiconv_warn(lev+3,off+len,"Style hotkey has unknown value (ignored)");
239 psiconv_debug(lev+3,off+len,"Hotkey %d value %08x",i,temp);
240 temp = 0;
241 }
242 style->hotkey = temp & 0x000000ff;
243 if ((style->hotkey >= 32) && (style->hotkey < 127))
244 psiconv_debug(lev+3,off+len,"Hotkey %d: %c",i,style->hotkey);
245 else if (style->hotkey == 0x00)
246 psiconv_debug(lev+3,off+len,"Hotkey %d: <none>",i);
247 else
248 psiconv_debug(lev+3,off+len,"Hotkey %d: %02x",i,style->hotkey);
249 if ((res = psiconv_list_add((*result)->styles,style)))
250 goto ERROR3_2;
251 len += 0x04;
252 }
253 free(style);
254
255 psiconv_progress(lev+2,off+len,"Going to read all other styles");
256 psiconv_progress(lev+2,off+len,"Going to read the number of styles");
257 nr = psiconv_read_u8(buf,lev+3,off+len,&res);
258 if (res)
259 goto ERROR4;
260 if (nr != psiconv_list_length((*result)->styles)) {
261 psiconv_warn(lev+3,off+len,"Number of styles and hotkeys do not match");
262 psiconv_debug(lev+3,off+len,"%d hotkeys, %d styles",
263 psiconv_list_length((*result)->styles), nr);
264 }
265 len ++;
266
267 for (i = 0; i < nr; i++) {
268 psiconv_progress(lev+2,off+len,"Next style: %d",i);
269 if (i >= psiconv_list_length((*result)->styles)) {
270 if (!(style = malloc(sizeof(*style))))
271 goto ERROR5;
272 style->hotkey = 0;
273 if (!(psiconv_list_add((*result)->styles,style))) {
274 free(style);
275 goto ERROR5;
276 }
277 psiconv_debug(lev+3,off+len,"New entry added in list");
278 free(style);
279 }
280 if (!(style = psiconv_list_get((*result)->styles,i)))
281 goto ERROR5;
282 psiconv_progress(lev+3,off+len,"Going to read the style name");
283 style->name = psiconv_read_string(buf,lev+3,off+len,&leng,&res);
284 if (res)
285 goto ERROR5;
286 len += leng;
287 psiconv_progress(lev+3,off+len,
288 "Going to read whether this style is built-in");
289 temp = psiconv_read_u32(buf,lev+2,off+len,&res);
290 if (res)
291 goto ERROR6;
292
293 if (temp == PSICONV_ID_STYLE_BUILT_IN) {
294 style->built_in = psiconv_bool_true;
295 psiconv_debug(lev+3,off+len,"Built-in style");
296 } else if (temp == PSICONV_ID_STYLE_REMOVABLE) {
297 style->built_in = psiconv_bool_false;
298 psiconv_debug(lev+3,off+len,"Removable style");
299 } else {
300 psiconv_warn(lev+3,off+len,
301 "Word styles section unknown style id (treated as built-in)");
302 psiconv_debug(lev+3,off+len,"Unknown id: %08x",temp);
303 style->built_in = psiconv_bool_false;
304 }
305 len += 4;
306 psiconv_progress(lev+3,off+len,"Going to read outline level");
307 style->outline_level = psiconv_read_u32(buf,lev+3,off+len,&res);
308 if (res)
309 goto ERROR6;
310 psiconv_debug(lev+3,off+len,"Outline Level: %08x", style->outline_level);
311 len += 4;
312 psiconv_progress(lev+3,off+len,"Going to read the character codes");
313 if (!(style->character = psiconv_clone_character_layout((*result)->normal->character)))
314 goto ERROR6;
315 if ((res = psiconv_parse_character_layout_list(buf,lev+3,off+len,&leng,
316 style->character)))
317 goto ERROR7;
318 len += leng;
319 psiconv_progress(lev+3,off+len,"Going to read the paragraph codes");
320 if (!(style->paragraph = psiconv_clone_paragraph_layout((*result)->normal->paragraph)))
321 goto ERROR7;
322 if ((res = psiconv_parse_paragraph_layout_list(buf,lev+3,off+len,&leng,
323 style->paragraph)))
324 goto ERROR8;
325 len += leng;
326 }
327
328 psiconv_progress(lev+2,off+len,"Reading trailing bytes");
329 for (i = 0; i < psiconv_list_length((*result)->styles); i++) {
330 temp = psiconv_read_u8(buf,lev+3,off+len,&res);
331 if (res)
332 goto ERROR4;
333 if (temp != 0xff) {
334 psiconv_warn(lev+3,off+len,"Unknown trailing style byte");
335 psiconv_debug(lev+3,off+len,"Trailing byte: %02x expected, read %02x",
336 0xff,temp);
337 } else
338 psiconv_debug(lev+3,off+len,"Read trailing byte 0xff");
339 len++;
340 }
341
342 if (length)
343 *length = len;
344
345 psiconv_progress(lev,off+len-1,
346 "End of word styles section (total length: %08x)", len);
347
348 return res;
349
350
351 ERROR3_2:
352 free(style);
353 ERROR3_1:
354 psiconv_list_free((*result)->styles);
355 goto ERROR3;
356
357 ERROR2_3:
358 psiconv_free_character_layout(style->character);
359 ERROR2_2:
360 psiconv_free_paragraph_layout(style->paragraph);
361 ERROR2_1:
362 free (style);
363 goto ERROR2;
364
365 ERROR8:
366 psiconv_free_paragraph_layout(style->paragraph);
367 ERROR7:
368 psiconv_free_character_layout(style->character);
369 ERROR6:
370 free(style->name);
371 ERROR5:
372 for (j = 0; j < i ;j++) {
373 if (!(style = psiconv_list_get((*result)->styles,j))) {
374 psiconv_warn(lev+1,off,"Massive memory corruption");
375 goto ERROR4;
376 }
377 psiconv_free_character_layout(style->character);
378 psiconv_free_paragraph_layout(style->paragraph);
379 free(style->name);
380 }
381 ERROR4:
382 psiconv_list_free((*result)->styles);
383 ERROR3:
384 psiconv_free_word_style((*result)->normal);
385 ERROR2:
386 free (*result);
387 ERROR1:
388 psiconv_warn(lev+1,off,"Reading of Word Status Section failed");
389 if (length)
390 *length = 0;
391 if (!res)
392 return -PSICONV_E_NOMEM;
393 else
394 return res;
395 }
396
397
398

frodo@frodo.looijaard.name
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