/[public]/psiconv/trunk/lib/psiconv/parse_page.c
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Revision 2 Revision 142
1/* 1/*
2 parse_page.c - Part of psiconv, a PSION 5 file formats converter 2 parse_page.c - Part of psiconv, a PSION 5 file formats converter
3 Copyright (c) 1999 Frodo Looijaard <frodol@dds.nl> 3 Copyright (c) 1999, 2000 Frodo Looijaard <frodol@dds.nl>
4 4
5 This program is free software; you can redistribute it and/or modify 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 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 7 the Free Software Foundation; either version 2 of the License, or
8 (at your option) any later version. 8 (at your option) any later version.
… …
16 along with this program; if not, write to the Free Software 16 along with this program; if not, write to the Free Software
17 Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. 17 Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
18*/ 18*/
19 19
20#include "config.h" 20#include "config.h"
21#include "compat.h"
22
21#include <stdlib.h> 23#include <stdlib.h>
22#include <string.h> 24#include <string.h>
23 25
24#include "data.h"
25#include "parse_routines.h" 26#include "parse_routines.h"
27#include "error.h"
28
29#ifdef DMALLOC
30#include <dmalloc.h>
31#endif
32
26 33
27int psiconv_parse_page_header(const psiconv_buffer buf,int lev,psiconv_u32 off, 34int psiconv_parse_page_header(const psiconv_buffer buf,int lev,psiconv_u32 off,
28 int *length,psiconv_page_header *result) 35 int *length,psiconv_page_header *result)
29{ 36{
30 int res = 0; 37 int res = 0;
31 int len = 0; 38 int len = 0;
32 int i,leng; 39 int i,leng,has_content;
33 psiconv_u32 temp; 40 psiconv_u32 temp;
34 41
35 psiconv_progress(lev+1,off,"Going to read a page header (or footer)"); 42 psiconv_progress(lev+1,off,"Going to read a page header (or footer)");
36 (*result) = malloc(sizeof(**result)); 43 if (!(*result = malloc(sizeof(**result))))
44 goto ERROR1;
37 45
38 psiconv_progress(lev+2,off+len, 46 psiconv_progress(lev+2,off+len,
39 "Going to read the first byte (0x01 expected)"); 47 "Going to read the has_content flag");
40 temp = psiconv_read_u8(buf,lev+2,off+len); 48 temp = psiconv_read_u8(buf,lev+2,off+len,&res);
49 if (res)
50 goto ERROR2;
41 if (temp != 0x01) { 51 if (temp == 0x00)
42 psiconv_warn(lev+2,off+len,"Page header first byte mismatch"); 52 has_content = 0;
43 psiconv_debug(lev+2,off+len,"First byte: read %02x, expected %02x", 53 else if (temp == 0x01)
44 temp,0x01); 54 has_content = 1;
45 res = -1; 55 else {
56 psiconv_warn(lev+2,off+len,
57 "Page header has_content flag unknown value (assumed default)");
58 psiconv_debug(lev+2,off+len,"Flag: %02x",temp);
59 has_content = 1;
46 } 60 }
61 psiconv_debug(lev+2,off+len,"Has_content flag: %02x",has_content);
47 len += 1; 62 len += 1;
48 63
49 psiconv_progress(lev+2,off+len,"Going to read displayed-on-first-page flag"); 64 psiconv_progress(lev+2,off+len,"Going to read displayed-on-first-page flag");
50 res |= psiconv_parse_bool(buf,lev+2,off+len,&leng,&(*result)->on_first_page); 65 if ((res = psiconv_parse_bool(buf,lev+2,off+len,&leng,
66 &(*result)->on_first_page)))
67 goto ERROR2;
51 len += leng; 68 len += leng;
52 69
53 psiconv_progress(lev+2,off+len,"Going to read three zero bytes"); 70 psiconv_progress(lev+2,off+len,"Going to read three zero bytes");
54 for (i = 0; i < 0x03; i++,len++) { 71 for (i = 0; i < 0x03; i++,len++) {
55 temp = psiconv_read_u8(buf,lev+2,off+len); 72 temp = psiconv_read_u8(buf,lev+2,off+len,&res);
73 if (res)
74 goto ERROR2;
56 if (temp != 0x00) { 75 if (temp != 0x00) {
57 psiconv_warn(lev+2,off+len, 76 psiconv_warn(lev+2,off+len,
58 "Page Header unknown value in zero bytes section"); 77 "Page Header unknown value in zero bytes section");
59 psiconv_debug(lev+2,off+len,"Byte %d: read %02x, expected %02x", 78 psiconv_debug(lev+2,off+len,"Byte %d: read %02x, expected %02x",
60 i,temp,0x00); 79 i,temp,0x00);
61 res = -1;
62 } 80 }
63 } 81 }
64 82
65 psiconv_progress(lev+2,off+len,"Going to read base paragraph layout"); 83 psiconv_progress(lev+2,off+len,"Going to read base paragraph layout");
66 (*result)->base_paragraph_layout = psiconv_basic_paragraph_layout(); 84 if (!((*result)->base_paragraph_layout = psiconv_basic_paragraph_layout()))
85 goto ERROR2;
86
87 if (has_content) {
67 res |= psiconv_parse_paragraph_layout_list(buf,lev+2,off+len,&leng, 88 if ((res = psiconv_parse_paragraph_layout_list(buf,lev+2,off+len,&leng,
68 (*result)->base_paragraph_layout); 89 (*result)->base_paragraph_layout)))
90 goto ERROR3;
69 len += leng; 91 len += leng;
92 }
70 93
71 psiconv_progress(lev+2,off+len,"Going to read base character layout"); 94 psiconv_progress(lev+2,off+len,"Going to read base character layout");
72 (*result)->base_character_layout = psiconv_basic_character_layout(); 95 if (!((*result)->base_character_layout = psiconv_basic_character_layout()))
96 goto ERROR3;
97 if (has_content) {
73 res |= psiconv_parse_character_layout_list(buf,lev+2,off+len,&leng, 98 if ((res = psiconv_parse_character_layout_list(buf,lev+2,off+len,&leng,
74 (*result)->base_character_layout); 99 (*result)->base_character_layout)))
100 goto ERROR4;
101 }
75 len += leng; 102 len += leng;
76 103
77 104
78 psiconv_progress(lev+2,off+len,"Going to read the TextEd section"); 105 psiconv_progress(lev+2,off+len,"Going to read the TextEd section");
106 if (has_content) {
79 res |= psiconv_parse_texted_section(buf,lev+2,off+len,&leng, 107 if ((res = psiconv_parse_texted_section(buf,lev+2,off+len,&leng,
80 &(*result)->text, 108 &(*result)->text,
81 (*result)->base_character_layout, 109 (*result)->base_character_layout,
82 (*result)->base_paragraph_layout); 110 (*result)->base_paragraph_layout)))
111 goto ERROR4;
83 len += leng; 112 len += leng;
113 } else {
114 (*result)->text = NULL;
115 }
84 116
85 if (length) 117 if (length)
86 *length = len; 118 *length = len;
87 119
88 psiconv_progress(lev+1,off+len-1,"End of page header" 120 psiconv_progress(lev+1,off+len-1,"End of page header"
89 "(total length: %08x", len); 121 "(total length: %08x", len);
90 122
91 return res; 123 return res;
124
125ERROR4:
126 psiconv_free_character_layout((*result)->base_character_layout);
127ERROR3:
128 psiconv_free_paragraph_layout((*result)->base_paragraph_layout);
129ERROR2:
130 free (*result);
131ERROR1:
132 psiconv_warn(lev+1,off,"Reading of Page Header failed");
133 if (length)
134 *length = 0;
135 if (!res)
136 return -PSICONV_E_NOMEM;
137 else
138 return res;
92} 139}
93 140
94int psiconv_parse_page_layout_section(const psiconv_buffer buf,int lev, 141int psiconv_parse_page_layout_section(const psiconv_buffer buf,int lev,
95 psiconv_u32 off, int *length, 142 psiconv_u32 off, int *length,
96 psiconv_page_layout_section *result) 143 psiconv_page_layout_section *result)
… …
99 int len = 0; 146 int len = 0;
100 int leng; 147 int leng;
101 psiconv_u32 temp; 148 psiconv_u32 temp;
102 149
103 psiconv_progress(lev+1,off,"Going to read the page layout section"); 150 psiconv_progress(lev+1,off,"Going to read the page layout section");
104 (*result) = malloc(sizeof(**result)); 151 if (!(*result = malloc(sizeof(**result))))
152 goto ERROR1;
105 153
106 psiconv_progress(lev+2,off+len,"Going to read first page number"); 154 psiconv_progress(lev+2,off+len,"Going to read first page number");
107 (*result)->first_page_nr = psiconv_read_u32(buf,lev+2,off+len); 155 (*result)->first_page_nr = psiconv_read_u32(buf,lev+2,off+len,&res);
156 if (res)
157 goto ERROR2;
108 psiconv_debug(lev+2,off+len,"First page: %d",(*result)->first_page_nr); 158 psiconv_debug(lev+2,off+len,"First page: %d",(*result)->first_page_nr);
109 len += 4; 159 len += 4;
110 160
111 psiconv_progress(lev+2,off+len,"Going to read header distance"); 161 psiconv_progress(lev+2,off+len,"Going to read header distance");
112 (*result)->header_dist = psiconv_read_length(buf,lev+2,off+len,&leng); 162 (*result)->header_dist = psiconv_read_length(buf,lev+2,off+len,&leng,&res);
163 if (res)
164 goto ERROR2;
113 psiconv_debug(lev+2,off+len,"Header distance: %6.3f",(*result)->header_dist); 165 psiconv_debug(lev+2,off+len,"Header distance: %6.3f",(*result)->header_dist);
114 len += leng; 166 len += leng;
115 167
116 psiconv_progress(lev+2,off+len,"Going to read footer distance"); 168 psiconv_progress(lev+2,off+len,"Going to read footer distance");
117 (*result)->footer_dist = psiconv_read_length(buf,lev+2,off+len,&leng); 169 (*result)->footer_dist = psiconv_read_length(buf,lev+2,off+len,&leng,&res);
170 if (res)
171 goto ERROR2;
118 psiconv_debug(lev+2,off+len,"Footer distance: %6.3f",(*result)->footer_dist); 172 psiconv_debug(lev+2,off+len,"Footer distance: %6.3f",(*result)->footer_dist);
119 len += leng; 173 len += leng;
120 174
121 psiconv_progress(lev+2,off+len,"Going to read the left margin"); 175 psiconv_progress(lev+2,off+len,"Going to read the left margin");
122 (*result)->left_margin = psiconv_read_length(buf,lev+2,off+len,&leng); 176 (*result)->left_margin = psiconv_read_length(buf,lev+2,off+len,&leng,&res);
177 if (res)
178 goto ERROR2;
123 psiconv_debug(lev+2,off+len,"Left margin: %6.3f",(*result)->left_margin); 179 psiconv_debug(lev+2,off+len,"Left margin: %6.3f",(*result)->left_margin);
124 len += leng; 180 len += leng;
125 181
126 psiconv_progress(lev+2,off+len,"Going read the to right margin"); 182 psiconv_progress(lev+2,off+len,"Going read the to right margin");
127 (*result)->right_margin = psiconv_read_length(buf,lev+2,off+len,&leng); 183 (*result)->right_margin = psiconv_read_length(buf,lev+2,off+len,&leng,&res);
184 if (res)
185 goto ERROR2;
128 psiconv_debug(lev+2,off+len,"Right margin: %6.3f",(*result)->right_margin); 186 psiconv_debug(lev+2,off+len,"Right margin: %6.3f",(*result)->right_margin);
129 len += leng; 187 len += leng;
130 188
131 psiconv_progress(lev+2,off+len,"Going to read the top margin"); 189 psiconv_progress(lev+2,off+len,"Going to read the top margin");
132 (*result)->top_margin = psiconv_read_length(buf,lev+2,off+len,&leng); 190 (*result)->top_margin = psiconv_read_length(buf,lev+2,off+len,&leng,&res);
191 if (res)
192 goto ERROR2;
133 psiconv_debug(lev+2,off+len,"Top margin: %6.3f",(*result)->top_margin); 193 psiconv_debug(lev+2,off+len,"Top margin: %6.3f",(*result)->top_margin);
134 len += leng; 194 len += leng;
135 195
136 psiconv_progress(lev+2,off+len,"Going to read the bottom margin"); 196 psiconv_progress(lev+2,off+len,"Going to read the bottom margin");
137 (*result)->bottom_margin = psiconv_read_length(buf,lev+2,off+len,&leng); 197 (*result)->bottom_margin = psiconv_read_length(buf,lev+2,off+len,&leng,&res);
198 if (res)
199 goto ERROR2;
138 psiconv_debug(lev+2,off+len,"Bottom margin: %6.3f",(*result)->bottom_margin); 200 psiconv_debug(lev+2,off+len,"Bottom margin: %6.3f",(*result)->bottom_margin);
139 len += leng; 201 len += leng;
140 202
141 psiconv_progress(lev+2,off+len,"Going to read the header"); 203 psiconv_progress(lev+2,off+len,"Going to read the header");
142 res |= psiconv_parse_page_header(buf,lev+2,off+len,&leng,&(*result)->header); 204 if ((res = psiconv_parse_page_header(buf,lev+2,off+len,&leng,
205 &(*result)->header)))
206 goto ERROR2;
143 len += leng; 207 len += leng;
144 208
145 psiconv_progress(lev+2,off+len,"Going to read the footer"); 209 psiconv_progress(lev+2,off+len,"Going to read the footer");
146 res |= psiconv_parse_page_header(buf,lev+2,off+len,&leng,&(*result)->footer); 210 if ((res = psiconv_parse_page_header(buf,lev+2,off+len,&leng,
211 &(*result)->footer)))
212 goto ERROR3;
147 len += leng; 213 len += leng;
148 214
149 psiconv_progress(lev+2,off+len,"Going to read page dimensions id"); 215 psiconv_progress(lev+2,off+len,"Going to read page dimensions id");
150 temp = psiconv_read_u32(buf,lev+2,off+len); 216 temp = psiconv_read_u32(buf,lev+2,off+len,&res);
217 if (res)
218 goto ERROR4;
151 if (temp != PSICONV_ID_PAGE_DIMENSIONS) { 219 if ((temp != PSICONV_ID_PAGE_DIMENSIONS1) &&
220 (temp != PSICONV_ID_PAGE_DIMENSIONS2)) {
152 psiconv_warn(lev+2,off+len, 221 psiconv_warn(lev+2,off+len,
153 "Page layout section page dimensions marker not found"); 222 "Page layout section page dimensions marker not found");
154 psiconv_debug(lev+2,off+len, 223 psiconv_debug(lev+2,off+len,
155 "Page dimensions marker: read %08x, expected %08x",temp, 224 "Page dimensions marker: read %08x, expected %08x or %08x",
225 temp, PSICONV_ID_PAGE_DIMENSIONS1,
156 PSICONV_ID_PAGE_DIMENSIONS); 226 PSICONV_ID_PAGE_DIMENSIONS2);
157 res = -1;
158 } 227 }
228 len += 4;
159 229
160 psiconv_progress(lev+2,off+len,"Going to read the page width"); 230 psiconv_progress(lev+2,off+len,"Going to read the page width");
161 (*result)->page_width = psiconv_read_length(buf,lev+2,off+len,&leng); 231 (*result)->page_width = psiconv_read_length(buf,lev+2,off+len,&leng,&res);
232 if (res)
233 goto ERROR4;
162 psiconv_debug(lev+2,off+len,"Page width: %6.3f",(*result)->page_width); 234 psiconv_debug(lev+2,off+len,"Page width: %6.3f",(*result)->page_width);
163 len += leng; 235 len += leng;
164 236
165 psiconv_progress(lev+2,off+len,"Going to read the page height"); 237 psiconv_progress(lev+2,off+len,"Going to read the page height");
166 (*result)->page_height = psiconv_read_length(buf,lev+2,off+len,&leng); 238 (*result)->page_height = psiconv_read_length(buf,lev+2,off+len,&leng,&res);
239 if (res)
240 goto ERROR4;
167 psiconv_debug(lev+2,off+len,"Page height: %6.3f",(*result)->page_height); 241 psiconv_debug(lev+2,off+len,"Page height: %6.3f",(*result)->page_height);
168 len += leng; 242 len += leng;
243
244 psiconv_progress(lev+2,off+len,"Going to read page portrait/landscape");
245 if ((res = psiconv_parse_bool(buf,lev+2,off+len,&leng,&(*result)->landscape)))
246 goto ERROR4;
247 psiconv_debug(lev+2,off+len,"Landscape: %d",(*result)->landscape);
248 len += leng;
249
169 250
170 if (length) 251 if (length)
171 *length = len; 252 *length = len;
172 253
173 psiconv_progress(lev,off+len-1,"End of page section (total length: %08x)", 254 psiconv_progress(lev,off+len-1,"End of page section (total length: %08x)",
174 len); 255 len);
175 256
176 return res; 257 return res;
258
259ERROR4:
260 psiconv_free_page_header((*result)->footer);
261ERROR3:
262 psiconv_free_page_header((*result)->header);
263ERROR2:
264 free (*result);
265ERROR1:
266 psiconv_warn(lev+1,off,"Reading of Page Section failed");
267 if (length)
268 *length = 0;
269 if (!res)
270 return -PSICONV_E_NOMEM;
271 else
272 return res;
177} 273}
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