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

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Revision 2 - (show annotations)
Sun Oct 3 21:10:47 1999 UTC (19 years, 11 months ago) by frodo
File MIME type: text/plain
File size: 14522 byte(s)
Imported sources

1 /*
2 parse_driver.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 <stdlib.h>
22
23 #include "parse.h"
24 #include "parse_routines.h"
25 #include "data.h"
26
27 psiconv_file_type_t psiconv_file_type(psiconv_buffer buf)
28 {
29 psiconv_header_section header;
30 psiconv_file_type_t res;
31
32 psiconv_parse_header_section(buf,0,0,NULL,&header);
33 res = header->file;
34 psiconv_free_header_section(header);
35 return res;
36 }
37
38 int psiconv_parse(const psiconv_buffer buf,psiconv_file *result)
39 {
40 int res=0;
41 int lev=0;
42 int off=0;
43
44 (*result) = malloc(sizeof(**result));
45
46 (*result)->type = psiconv_file_type(buf);
47 if ((*result)->type == psiconv_unknown_file) {
48 psiconv_warn(lev+1,off,"Unknown file type: can't parse!");
49 (*result)->file = NULL;
50 res = -1;
51 } else if ((*result)->type == psiconv_word_file)
52 res = psiconv_parse_word_file(buf,lev+2,off,
53 (psiconv_word_f *)(&((*result)->file)));
54 else if ((*result)->type == psiconv_texted_file)
55 res = psiconv_parse_texted_file(buf,lev+2,off,
56 (psiconv_texted_f *)(&((*result)->file)));
57 else {
58 psiconv_warn(lev+1,off,"Can't parse this file yet!");
59 (*result)->file = NULL;
60 }
61 res = -1;
62
63 return res;
64 }
65
66 int psiconv_parse_texted_file(const psiconv_buffer buf,int lev, psiconv_u32 off,
67 psiconv_texted_f *result)
68 {
69 int res=0;
70 psiconv_header_section header;
71 psiconv_section_table_section table;
72 psiconv_application_id_section appl_id;
73 char *temp_str;
74 psiconv_character_layout base_char;
75 psiconv_paragraph_layout base_para;
76 psiconv_u32 page_sec = 0;
77 psiconv_u32 texted_sec = 0;
78 psiconv_u32 applid_sec = 0;
79 psiconv_section_table_entry entry;
80 int i;
81
82 psiconv_progress(lev+1,off,"Going to read a texted file");
83 *result = malloc(sizeof(**result));
84
85 psiconv_progress(lev+2,off, "Going to read the header section");
86 res |= psiconv_parse_header_section(buf,lev+2,off,NULL,&header);
87
88 psiconv_progress(lev+2,header->section_table_offset,
89 "Going to read the section table section");
90 res |= psiconv_parse_section_table_section(buf,lev+2,
91 header->section_table_offset,
92 NULL,&table);
93
94 for (i = 0; i < psiconv_list_length(table); i ++) {
95 psiconv_progress(lev+2,header->section_table_offset,
96 "Going to read entry %d",i);
97 entry = psiconv_list_get(table,i);
98 if (entry->id == PSICONV_ID_APPL_ID_SECTION) {
99 applid_sec = entry->offset;
100 psiconv_debug(lev+3,header->section_table_offset,
101 "Found the Application ID section at %08x",applid_sec);
102 } else if (entry->id == PSICONV_ID_PAGE_LAYOUT_SECTION) {
103 page_sec = entry->offset;
104 psiconv_debug(lev+3,header->section_table_offset,
105 "Found the Page Layout section at %08x",page_sec);
106 } else if (entry->id == PSICONV_ID_TEXTED) {
107 texted_sec = entry->offset;
108 psiconv_debug(lev+3,header->section_table_offset,
109 "Found the TextEd section at %08x",texted_sec);
110 } else {
111 psiconv_warn(lev+3,header->section_table_offset,
112 "Found unknown section in the Section Table");
113 psiconv_debug(lev+3,header->section_table_offset,
114 "Section ID %08x, offset %08x",entry->id,entry->offset);
115 res = -1;
116 }
117 }
118
119 psiconv_progress(lev+2,header->section_table_offset,
120 "Looking for the Application ID section");
121 if (! applid_sec) {
122 psiconv_warn(lev+2,header->section_table_offset,
123 "Application ID section not found in the section table");
124 res = -1;
125 } else {
126 psiconv_debug(lev+2,header->section_table_offset,
127 "Application ID section at offset %08x",applid_sec);
128 res |= psiconv_parse_application_id_section(buf,lev+2,applid_sec,NULL,
129 &appl_id);
130 }
131 if ((appl_id->id != PSICONV_ID_TEXTED) ||
132 strcmp(appl_id->name,"TextEd.app")) {
133 psiconv_warn(lev+2,applid_sec,
134 "Application ID section contains unexpected data");
135 psiconv_debug(lev+2,applid_sec,"ID: %08x expected, %08x found",
136 PSICONV_ID_TEXTED,appl_id->id);
137 temp_str = psiconv_make_printable(appl_id->name);
138 psiconv_debug(lev+2,applid_sec,"Name: `%s' expected, `%s' found",
139 PSICONV_ID_TEXTED,temp_str);
140 free(temp_str);
141 }
142
143 psiconv_progress(lev+2,header->section_table_offset,
144 "Looking for the Page layout section");
145 if (! page_sec) {
146 psiconv_warn(lev+2,header->section_table_offset,
147 "Page layout section not found in the section table");
148 (*result)->page_sec = NULL;
149 res = -1;
150 } else {
151 psiconv_debug(lev+2,header->section_table_offset,
152 "Page layout section at offset %08x",page_sec);
153 res |= psiconv_parse_page_layout_section(buf,lev+2,page_sec,NULL,
154 &(*result)->page_sec);
155 }
156
157 base_char = psiconv_basic_character_layout();
158 base_para = psiconv_basic_paragraph_layout();
159
160 psiconv_progress(lev+2,header->section_table_offset,
161 "Looking for the TextEd section");
162 if (! texted_sec) {
163 psiconv_warn(lev+2,header->section_table_offset,
164 "TextEd section not found in the section table");
165 (*result)->texted_sec = NULL;
166 res = -1;
167 } else {
168 psiconv_debug(lev+2,header->section_table_offset,
169 "TextEd section at offset %08x",texted_sec);
170 res |= psiconv_parse_texted_section(buf,lev+2,texted_sec,NULL,
171 &(*result)->texted_sec,
172 base_char,base_para);
173 }
174 psiconv_free_character_layout(base_char);
175 psiconv_free_paragraph_layout(base_para);
176
177 psiconv_free_application_id_section(appl_id);
178 psiconv_free_header_section(header);
179 psiconv_free_section_table_section(table);
180
181 psiconv_progress(lev+1,off,"End of word file");
182 return res;
183 }
184
185 int psiconv_parse_word_file(const psiconv_buffer buf,int lev, psiconv_u32 off,
186 psiconv_word_f *result)
187 {
188 int res=0;
189 psiconv_header_section header;
190 psiconv_section_table_section table;
191 psiconv_application_id_section appl_id;
192 char *temp_str;
193 psiconv_u32 pwd_sec = 0;
194 psiconv_u32 status_sec = 0;
195 psiconv_u32 styles_sec = 0;
196 psiconv_u32 page_sec = 0;
197 psiconv_u32 text_sec = 0;
198 psiconv_u32 layout_sec = 0;
199 psiconv_u32 applid_sec = 0;
200 psiconv_section_table_entry entry;
201 int i;
202
203 psiconv_progress(lev+1,off,"Going to read a word file");
204 *result = malloc(sizeof(**result));
205
206 psiconv_progress(lev+2,off, "Going to read the header section");
207 res |= psiconv_parse_header_section(buf,lev+2,off,NULL,&header);
208
209 psiconv_progress(lev+2,header->section_table_offset,
210 "Going to read the section table section");
211 res |= psiconv_parse_section_table_section(buf,lev+2,
212 header->section_table_offset,
213 NULL,&table);
214
215 for (i = 0; i < psiconv_list_length(table); i ++) {
216 psiconv_progress(lev+2,header->section_table_offset,
217 "Going to read entry %d",i);
218 entry = psiconv_list_get(table,i);
219 if (entry->id == PSICONV_ID_APPL_ID_SECTION) {
220 applid_sec = entry->offset;
221 psiconv_debug(lev+3,header->section_table_offset,
222 "Found the Application ID section at %08x",applid_sec);
223 } else if (entry->id == PSICONV_ID_PAGE_LAYOUT_SECTION) {
224 page_sec = entry->offset;
225 psiconv_debug(lev+3,header->section_table_offset,
226 "Found the Page Layout section at %08x",page_sec);
227 } else if (entry->id == PSICONV_ID_TEXT_SECTION) {
228 text_sec = entry->offset;
229 psiconv_debug(lev+3,header->section_table_offset,
230 "Found the Text section at %08x",text_sec);
231 } else if (entry->id == PSICONV_ID_PASSWORD_SECTION) {
232 pwd_sec = entry->offset;
233 psiconv_debug(lev+3,header->section_table_offset,
234 "Found the Password section at %08x",pwd_sec);
235 psiconv_warn(lev+3,header->section_table_offset,
236 "Password section found - can't read encrypted data");
237 res = -1;
238 } else if (entry->id == PSICONV_ID_WORD_STATUS_SECTION) {
239 status_sec = entry->offset;
240 psiconv_debug(lev+3,header->section_table_offset,
241 "Found the Word Status section at %08x",status_sec);
242 } else if (entry->id == PSICONV_ID_WORD_STYLES_SECTION) {
243 styles_sec = entry->offset;
244 psiconv_debug(lev+3,header->section_table_offset,
245 "Found the Word Styles section at %08x",styles_sec);
246 } else if (entry->id == PSICONV_ID_LAYOUT_SECTION) {
247 layout_sec = entry->offset;
248 psiconv_debug(lev+3,header->section_table_offset,
249 "Found the Layout section at %08x",layout_sec);
250 } else {
251 psiconv_warn(lev+3,header->section_table_offset,
252 "Found unknown section in the Section Table");
253 psiconv_debug(lev+3,header->section_table_offset,
254 "Section ID %08x, offset %08x",entry->id,entry->offset);
255 res = -1;
256 }
257 }
258
259
260 psiconv_progress(lev+2,header->section_table_offset,
261 "Looking for the Status section");
262 if (!status_sec) {
263 psiconv_warn(lev+2,header->section_table_offset,
264 "Status section not found in the section table");
265 res = -1;
266 } else {
267 psiconv_debug(lev+2,header->section_table_offset,
268 "Status section at offset %08x",status_sec);
269 res |= psiconv_parse_word_status_section(buf,lev+2,status_sec,NULL,
270 &((*result)->status_sec));
271 }
272
273 psiconv_progress(lev+2,header->section_table_offset,
274 "Looking for the Application ID section");
275 if (! applid_sec) {
276 psiconv_warn(lev+2,header->section_table_offset,
277 "Application ID section not found in the section table");
278 res = -1;
279 } else {
280 psiconv_debug(lev+2,header->section_table_offset,
281 "Application ID section at offset %08x",applid_sec);
282 res |= psiconv_parse_application_id_section(buf,lev+2,applid_sec,NULL,
283 &appl_id);
284 }
285 if ((appl_id->id != PSICONV_ID_WORD) ||
286 strcmp(appl_id->name,"Word.app")) {
287 psiconv_warn(lev+2,applid_sec,
288 "Application ID section contains unexpected data");
289 psiconv_debug(lev+2,applid_sec,"ID: %08x expected, %08x found",
290 PSICONV_ID_WORD,appl_id->id);
291 temp_str = psiconv_make_printable(appl_id->name);
292 psiconv_debug(lev+2,applid_sec,"Name: `%s' expected, `%s' found",
293 PSICONV_ID_WORD,temp_str);
294 free(temp_str);
295 }
296
297 psiconv_progress(lev+2,header->section_table_offset,
298 "Looking for the Page layout section");
299 if (! page_sec) {
300 psiconv_warn(lev+2,header->section_table_offset,
301 "Page layout section not found in the section table");
302 (*result)->page_sec = NULL;
303 res = -1;
304 } else {
305 psiconv_debug(lev+2,header->section_table_offset,
306 "Page layout section at offset %08x",page_sec);
307 res |= psiconv_parse_page_layout_section(buf,lev+2,page_sec,NULL,
308 &(*result)->page_sec);
309 }
310
311 psiconv_progress(lev+2,header->section_table_offset,
312 "Looking for the Word Style section");
313 if (!styles_sec) {
314 psiconv_warn(lev+2,header->section_table_offset,
315 "Word styles section not found in the section table");
316 (*result)->styles_sec = NULL;
317 res = -1;
318 } else {
319 psiconv_debug(lev+2,header->section_table_offset,
320 "Word styles section at offset %08x",styles_sec);
321 res |= psiconv_parse_word_styles_section(buf,lev+2,styles_sec,NULL,
322 &(*result)->styles_sec);
323 }
324
325 psiconv_progress(lev+2,header->section_table_offset,
326 "Looking for the Text section");
327 if (!text_sec) {
328 psiconv_warn(lev+2,header->section_table_offset,
329 "Text section not found in the section table");
330 (*result)->paragraphs = NULL;
331 res = -1;
332 } else {
333 psiconv_debug(lev+2,header->section_table_offset,
334 "Text section at offset %08x",text_sec);
335 res |= psiconv_parse_text_section(buf,lev+2,text_sec,NULL,
336 &(*result)->paragraphs);
337 }
338
339 if (((*result)->paragraphs) && ((*result)->styles_sec)) {
340 psiconv_progress(lev+2,header->section_table_offset,
341 "Looking for the Layout section");
342 if (!layout_sec) {
343 psiconv_debug(lev+2,header->section_table_offset,
344 "Layout section not found in the section table");
345 res = -1;
346 } else {
347 psiconv_debug(lev+2,header->section_table_offset,
348 "Layout section at offset %08x",layout_sec);
349 res |= psiconv_parse_styled_layout_section(buf,lev+2,layout_sec,NULL,
350 (*result)->paragraphs,
351 (*result)->styles_sec);
352 }
353 } else
354 psiconv_debug(lev+2,header->section_table_offset,
355 "Skipping search for Layout section, as either the "
356 "text or the word styles section was not found");
357
358 psiconv_free_application_id_section(appl_id);
359 psiconv_free_header_section(header);
360 psiconv_free_section_table_section(table);
361
362 psiconv_progress(lev+1,off,"End of word file");
363 return res;
364 }

frodo@frodo.looijaard.name
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