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

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Revision 64 - (hide annotations)
Fri Dec 15 00:21:51 2000 UTC (23 years, 3 months ago) by frodo
File MIME type: text/plain
File size: 13446 byte(s)
(Frodo) Massive update: theoretically, all return codes are now checked.
        Untested - may have many typos.

1 frodo 2 /*
2     parse_word.c - Part of psiconv, a PSION 5 file formats converter
3 frodo 63 Copyright (c) 1999, 2000 Frodo Looijaard <frodol@dds.nl>
4 frodo 2
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     #include "parse_routines.h"
23    
24     int psiconv_parse_word_status_section(const psiconv_buffer buf, int lev,
25     psiconv_u32 off, int *length,
26     psiconv_word_status_section *result)
27     {
28     int res=0;
29     int len=0;
30     psiconv_u32 temp;
31     int leng;
32    
33     psiconv_progress(lev+1,off,"Going to read the word status section");
34 frodo 64 if (!(*result = malloc(sizeof(**result))))
35     goto ERROR1;
36 frodo 2
37     psiconv_progress(lev+2,off+len,
38     "Going to read the initial byte (%02x expected)",0x02);
39 frodo 64 temp = psiconv_read_u8(buf,lev+2,off+len,&res);
40     if (res)
41     goto ERROR2;
42 frodo 2 if (temp != 0x02) {
43     psiconv_warn(lev+2,off+len,
44 frodo 64 "Word status section initial byte unknown value (ignored)");
45 frodo 2 psiconv_debug(lev+2,off+len,"Initial byte: %02x",temp);
46     }
47     len ++;
48    
49     psiconv_progress(lev+2,off+len,
50     "Going to read the first byte of display flags");
51 frodo 64 temp = psiconv_read_u8(buf,lev+2,off+len,&res);
52     if (res)
53     goto ERROR2;
54 frodo 2
55     (*result)->show_tabs = temp&0x01 ? psiconv_bool_true : psiconv_bool_false;
56     psiconv_debug(lev+2,off+len,"Show tabs: %02x",(*result)->show_tabs);
57     (*result)->show_spaces = temp&0x02 ? psiconv_bool_true : psiconv_bool_false;
58     psiconv_debug(lev+2,off+len,"Show spaces: %02x",(*result)->show_spaces);
59     (*result)->show_paragraph_ends = temp &0x04 ? psiconv_bool_true :
60     psiconv_bool_false;
61     psiconv_debug(lev+2,off+len,"Show paragraph ends: %02x",
62     (*result)->show_paragraph_ends);
63     (*result)->show_line_breaks = temp & 0x08 ? psiconv_bool_true :
64     psiconv_bool_false;
65     psiconv_debug(lev+2,off+len,"Show line breaks: %02x",
66     (*result)->show_line_breaks);
67     (*result)->show_hard_minus = temp & 0x20 ? psiconv_bool_true :
68     psiconv_bool_false;
69     psiconv_debug(lev+2,off+len,"Show hard minus: %02x",
70     (*result)->show_hard_minus);
71     (*result)->show_hard_space = temp & 0x40 ? psiconv_bool_true :
72     psiconv_bool_false;
73     psiconv_debug(lev+2,off+len,"Show hard space: %02x",
74     (*result)->show_hard_space);
75     if (temp & 0x90) {
76     psiconv_warn(lev+2,off+len,"Word status section first byte of display "
77 frodo 64 "flags contains unknown flags (ignored)");
78 frodo 2 psiconv_debug(lev+2,off+len,"Unknown flags: %02x",temp & 0x90);
79     }
80     len ++;
81    
82     psiconv_progress(lev+2,off+len,"Going to read second byte of display flags");
83 frodo 64 temp = psiconv_read_u8(buf,lev+2,off+len,&res);
84     if (res)
85     goto ERROR2;
86 frodo 2
87     (*result)->show_full_pictures = temp & 0x01 ? psiconv_bool_true :
88     psiconv_bool_false;
89     psiconv_debug(lev+2,off+len,"Show full pictures: %02x",
90     (*result)->show_full_pictures);
91     (*result)->show_full_graphs = temp & 0x02 ? psiconv_bool_true :
92     psiconv_bool_false;
93     psiconv_debug(lev+2,off+len,"Show full graphs: %02x",
94     (*result)->show_full_graphs);
95     if (temp & 0xfc) {
96     psiconv_warn(lev+2,off+len,"Word status section second byte of display "
97 frodo 64 "flags contains unknown flags (ignored)");
98 frodo 2 psiconv_debug(lev+2,off+len,"Unknown flags: %02x",temp & 0xfc);
99     }
100     len ++;
101    
102     psiconv_progress(lev+2,off+len,"Going to read top toolbar setting");
103 frodo 64 if ((res = psiconv_parse_bool(buf,lev+2,off+len,&leng,
104     &(*result)->show_top_toolbar)))
105     goto ERROR2;
106 frodo 2 len += leng;
107    
108     psiconv_progress(lev+2,off+len,"Going to read side toolbar setting");
109 frodo 64 if ((res = psiconv_parse_bool(buf,lev+2,off+len,&leng,
110     &(*result)->show_side_toolbar)))
111     goto ERROR2;
112 frodo 2 len += leng;
113    
114     psiconv_progress(lev+2,off+len,"Going to read operational flags");
115 frodo 64 temp = psiconv_read_u8(buf,lev+2,off+len,&res);
116     if (res)
117     goto ERROR2;
118 frodo 2 (*result)->fit_lines_to_screen = temp & 0x08 ? psiconv_bool_true :
119     psiconv_bool_false;
120     psiconv_debug(lev+2,off+len,"Fit lines to screen: %02x",
121     (*result)->fit_lines_to_screen);
122     if (temp & 0xf7) {
123     psiconv_warn(lev+2,off+len,"Word status section operational flags "
124 frodo 64 "contains unknown flags (ignored)");
125 frodo 2 psiconv_debug(lev+2,off+len,"Unknown flags: %02x",temp & 0xfc);
126     }
127     len ++;
128    
129     psiconv_progress(lev+2,off+len,"Going to read cursor position");
130 frodo 64 (*result)->cursor_position = psiconv_read_u32(buf,lev+2,off + len,&res);
131     if (res)
132     goto ERROR2;
133 frodo 2 psiconv_debug(lev+2,off+len,"Cursor position: %08x",
134     (*result)->cursor_position);
135     len += 0x04;
136    
137     psiconv_progress(lev+2,off+len,"Going to read display size");
138 frodo 64 (*result)->cursor_position = psiconv_read_u32(buf,lev+2,off + len,&res);
139     if (res)
140     goto ERROR2;
141 frodo 2 psiconv_debug(lev+2,off+len,"Display size: %08x",
142     (*result)->cursor_position);
143     len += 0x04;
144    
145     if (length)
146     *length = len;
147    
148     psiconv_progress(lev,off+len-1,
149     "End of word status section (total length: %08x)", len);
150 frodo 64 return 0;
151 frodo 2
152 frodo 64 ERROR2:
153     free (*result);
154     ERROR1:
155     psiconv_warn(lev+1,off,"Reading of Word Status Section failed");
156     if (length)
157     *length = 0;
158     if (!res)
159     return -PSICONV_E_NOMEM;
160     else
161     return res;
162 frodo 2 }
163    
164     int psiconv_parse_word_styles_section(const psiconv_buffer buf, int lev,
165     psiconv_u32 off, int *length,
166     psiconv_word_styles_section *result)
167     {
168     int res=0;
169     int len=0;
170 frodo 64 int leng,i,nr,j;
171 frodo 2 psiconv_word_style style;
172     psiconv_u32 temp;
173    
174     psiconv_progress(lev+1,off,"Going to read the word styles section");
175 frodo 64 if (!(*result = malloc(sizeof(**result))))
176     goto ERROR1;
177 frodo 2
178     psiconv_progress(lev+2,off+len,"Going to read style normal");
179 frodo 64 if (!(style = malloc(sizeof(*style))))
180     goto ERROR2;
181 frodo 2 style->name = NULL;
182 frodo 64 if (!(style->paragraph = psiconv_basic_paragraph_layout()))
183     goto ERROR2_1;
184 frodo 2 psiconv_progress(lev+3,off+len,"Going to read the paragraph codes");
185 frodo 64 if ((res = psiconv_parse_paragraph_layout_list(buf,lev+3,off+len,&leng,
186     style->paragraph)))
187     goto ERROR2_2;
188 frodo 2 len += leng;
189     psiconv_progress(lev+3,off+len,"Going to read the character codes");
190 frodo 64 if (!(style->character = psiconv_basic_character_layout()))
191     goto ERROR2_2;
192     if ((res = psiconv_parse_character_layout_list(buf,lev+3,off+len,&leng,
193     style->character)))
194     goto ERROR2_3;
195 frodo 2 len += leng;
196     psiconv_progress(lev+3,off+len,"Going to read the hotkey");
197 frodo 64 temp = psiconv_read_u32(buf,lev+3,off+len,&res);
198     if (res)
199     goto ERROR2_3;
200 frodo 2 if (temp & 0xffffff00) {
201 frodo 64 psiconv_warn(lev+3,off+len,
202     "Normal style hotkey has unknown value (ignored)");
203 frodo 2 psiconv_debug(lev+3,off+len,"Hotkey value %08x",temp);
204     temp = 0;
205     }
206 frodo 64 style->hotkey = temp & 0x000000ff;
207 frodo 2 if ((style->hotkey >= 32) && (style->hotkey < 127))
208     psiconv_debug(lev+3,off+len,"Hotkey: %c",style->hotkey);
209     else if (style->hotkey == 0x00)
210     psiconv_debug(lev+3,off+len,"Hotkey: <none>");
211     else
212     psiconv_debug(lev+3,off+len,"Hotkey: %02x",style->hotkey);
213     (*result)->normal = style;
214     len += 0x04;
215    
216     psiconv_progress(lev+2,off+len,"Going to read hotkeys list");
217 frodo 64 if (!((*result)->styles = psiconv_list_new(sizeof(*style))))
218     goto ERROR3;
219     if (!(style = malloc(sizeof(*style)))) {
220     goto ERROR3_1;
221     }
222    
223 frodo 2 psiconv_progress(lev+3,off+len,"Going to read the number of entries");
224 frodo 64 nr = psiconv_read_u8(buf,lev+3,off+len,&res);
225     if (res)
226     goto ERROR3_2;
227 frodo 2 len ++;
228     psiconv_debug(lev+3,off+len,"Nummer of hotkeys: %02x",nr);
229     for (i = 0; i < nr; i ++) {
230 frodo 64 temp = psiconv_read_u32(buf,lev+2,off+len,&res);
231     if (res)
232     goto ERROR3_2;
233 frodo 2 if (temp & 0xffffff00) {
234 frodo 64 psiconv_warn(lev+3,off+len,"Style hotkey has unknown value (ignored)");
235 frodo 2 psiconv_debug(lev+3,off+len,"Hotkey %d value %08x",i,temp);
236     temp = 0;
237     }
238 frodo 64 style->hotkey = temp & 0x000000ff;
239 frodo 2 if ((style->hotkey >= 32) && (style->hotkey < 127))
240     psiconv_debug(lev+3,off+len,"Hotkey %d: %c",i,style->hotkey);
241     else if (style->hotkey == 0x00)
242     psiconv_debug(lev+3,off+len,"Hotkey %d: <none>",i);
243     else
244     psiconv_debug(lev+3,off+len,"Hotkey %d: %02x",i,style->hotkey);
245 frodo 64 if ((res = psiconv_list_add((*result)->styles,style)))
246     goto ERROR3_2;
247 frodo 2 len += 0x04;
248     }
249     free(style);
250    
251     psiconv_progress(lev+2,off+len,"Going to read all other styles");
252     psiconv_progress(lev+2,off+len,"Going to read the number of styles");
253 frodo 64 nr = psiconv_read_u8(buf,lev+3,off+len,&res);
254     if (res)
255     goto ERROR4;
256 frodo 2 if (nr != psiconv_list_length((*result)->styles)) {
257     psiconv_warn(lev+3,off+len,"Number of styles and hotkeys do not match");
258     psiconv_debug(lev+3,off+len,"%d hotkeys, %d styles",
259     psiconv_list_length((*result)->styles), nr);
260     }
261     len ++;
262    
263     for (i = 0; i < nr; i++) {
264     psiconv_progress(lev+2,off+len,"Next style: %d",i);
265     if (i >= psiconv_list_length((*result)->styles)) {
266 frodo 64 if (!(style = malloc(sizeof(*style))))
267     goto ERROR5;
268 frodo 2 style->hotkey = 0;
269 frodo 64 if (!(psiconv_list_add((*result)->styles,style))) {
270     free(style);
271     goto ERROR5;
272     }
273 frodo 2 psiconv_debug(lev+3,off+len,"New entry added in list");
274     free(style);
275     }
276 frodo 64 if (!(style = psiconv_list_get((*result)->styles,i)))
277     goto ERROR5;
278 frodo 2 psiconv_progress(lev+3,off+len,"Going to read the style name");
279 frodo 64 style->name = psiconv_read_string(buf,lev+3,off+len,&leng,&res);
280     if (res)
281     goto ERROR5;
282 frodo 2 len += leng;
283     psiconv_progress(lev+3,off+len,
284     "Going to read whether this style is built-in");
285 frodo 64 temp = psiconv_read_u32(buf,lev+2,off+len,&res);
286     if (res)
287     goto ERROR6;
288    
289 frodo 2 if (temp == PSICONV_ID_STYLE_BUILT_IN) {
290     style->built_in = psiconv_bool_true;
291     psiconv_debug(lev+3,off+len,"Built-in style");
292     } else if (temp == PSICONV_ID_STYLE_REMOVABLE) {
293     style->built_in = psiconv_bool_false;
294     psiconv_debug(lev+3,off+len,"Removable style");
295     } else {
296 frodo 64 psiconv_warn(lev+3,off+len,
297     "Word styles section unknown style id (treated as built-in)");
298 frodo 2 psiconv_debug(lev+3,off+len,"Unknown id: %08x",temp);
299     style->built_in = psiconv_bool_false;
300     }
301     len += 4;
302 frodo 27 psiconv_progress(lev+3,off+len,"Going to read outline level");
303 frodo 64 style->outline_level = psiconv_read_u32(buf,lev+3,off+len,&res);
304     if (res)
305     goto ERROR6;
306 frodo 27 psiconv_debug(lev+3,off+len,"Outline Level: %08x", style->outline_level);
307 frodo 2 len += 4;
308     psiconv_progress(lev+3,off+len,"Going to read the character codes");
309 frodo 64 if (!(style->character = psiconv_basic_character_layout()))
310     goto ERROR6;
311     if ((res = psiconv_parse_character_layout_list(buf,lev+3,off+len,&leng,
312     style->character)))
313     goto ERROR7;
314 frodo 2 len += leng;
315     psiconv_progress(lev+3,off+len,"Going to read the paragraph codes");
316 frodo 64 if (!(style->paragraph = psiconv_basic_paragraph_layout()))
317     goto ERROR7;
318     if ((res = psiconv_parse_paragraph_layout_list(buf,lev+3,off+len,&leng,
319     style->paragraph)))
320     goto ERROR8;
321 frodo 2 len += leng;
322     }
323    
324     if (length)
325     *length = len;
326    
327     psiconv_progress(lev,off+len-1,
328     "End of word styles section (total length: %08x)", len);
329    
330     return res;
331 frodo 64
332    
333     ERROR3_2:
334     free(style);
335     ERROR3_1:
336     psiconv_list_free((*result)->styles);
337     goto ERROR3;
338    
339     ERROR2_3:
340     psiconv_free_character_layout(style->character);
341     ERROR2_2:
342     psiconv_free_paragraph_layout(style->paragraph);
343     ERROR2_1:
344     free (style);
345     goto ERROR2;
346    
347     ERROR8:
348     psiconv_free_paragraph_layout(style->paragraph);
349     ERROR7:
350     psiconv_free_character_layout(style->character);
351     ERROR6:
352     free(style->name);
353     ERROR5:
354     for (j = 0; j < i ;j++) {
355     if (!(style = psiconv_list_get((*result)->styles,j))) {
356     psiconv_warn(lev+1,off,"Massive memory corruption");
357     goto ERROR4;
358     }
359     psiconv_free_character_layout(style->character);
360     psiconv_free_paragraph_layout(style->paragraph);
361     free(style->name);
362     }
363     ERROR4:
364     psiconv_list_free((*result)->styles);
365     ERROR3:
366     psiconv_free_word_style((*result)->normal);
367     ERROR2:
368     free (*result);
369     ERROR1:
370     psiconv_warn(lev+1,off,"Reading of Word Status Section failed");
371     if (length)
372     *length = 0;
373     if (!res)
374     return -PSICONV_E_NOMEM;
375     else
376     return res;
377 frodo 2 }
378    
379    
380 frodo 64

frodo@frodo.looijaard.name
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