1 |
frodo |
2 |
/* |
2 |
|
|
parse_texted.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 |
frodo |
71 |
#include "compat.h" |
22 |
|
|
|
23 |
frodo |
2 |
#include <stdlib.h> |
24 |
|
|
|
25 |
|
|
#include "parse_routines.h" |
26 |
frodo |
71 |
#include "error.h" |
27 |
frodo |
2 |
|
28 |
|
|
int psiconv_parse_texted_section(const psiconv_buffer buf,int lev, |
29 |
|
|
psiconv_u32 off, int *length, |
30 |
|
|
psiconv_texted_section *result, |
31 |
|
|
psiconv_character_layout base_char, |
32 |
|
|
psiconv_paragraph_layout base_para) |
33 |
|
|
{ |
34 |
|
|
int res = 0; |
35 |
|
|
int len = 0; |
36 |
|
|
psiconv_u32 layout_sec = 0; |
37 |
|
|
psiconv_u32 unknown_sec = 0; |
38 |
|
|
psiconv_u32 replacement_sec = 0; |
39 |
|
|
psiconv_u32 temp; |
40 |
|
|
int leng; |
41 |
|
|
|
42 |
|
|
psiconv_progress(lev+1,off,"Going to read a texted section"); |
43 |
frodo |
64 |
if (!((*result) = malloc(sizeof(**result)))) |
44 |
|
|
goto ERROR1; |
45 |
frodo |
2 |
|
46 |
|
|
psiconv_progress(lev+2,off+len,"Going to read section id"); |
47 |
frodo |
64 |
temp = psiconv_read_u32(buf,lev+2,off+len,&res); |
48 |
|
|
if (res) |
49 |
|
|
goto ERROR2; |
50 |
frodo |
2 |
if (temp != PSICONV_ID_TEXTED_BODY) { |
51 |
|
|
psiconv_warn(lev+2,off+len, |
52 |
|
|
"Page header section body id not found"); |
53 |
|
|
psiconv_debug(lev+2,off+len, |
54 |
|
|
"Page body id: read %08x, expected %08x",temp, |
55 |
|
|
PSICONV_ID_TEXTED); |
56 |
frodo |
64 |
res = -PSICONV_E_PARSE; |
57 |
|
|
goto ERROR2; |
58 |
frodo |
2 |
} |
59 |
|
|
len += 4; |
60 |
|
|
|
61 |
|
|
psiconv_progress(lev+2,off+len,"Going to read the section jumptable"); |
62 |
frodo |
64 |
while (temp = psiconv_read_u32(buf,lev+3,off+len,&res), |
63 |
|
|
!res && temp != PSICONV_ID_TEXTED_TEXT) { |
64 |
frodo |
2 |
len += 4; |
65 |
|
|
if (temp == PSICONV_ID_TEXTED_LAYOUT) { |
66 |
frodo |
64 |
layout_sec = psiconv_read_u32(buf,lev+3,off+len,&res); |
67 |
|
|
if (res) |
68 |
|
|
goto ERROR2; |
69 |
frodo |
2 |
psiconv_debug(lev+3,off+len,"Found Layout section at %08x",layout_sec); |
70 |
|
|
} else if (temp == PSICONV_ID_TEXTED_REPLACEMENT) { |
71 |
frodo |
64 |
replacement_sec = psiconv_read_u32(buf,lev+3,off+len,&res); |
72 |
|
|
if (res) |
73 |
|
|
goto ERROR2; |
74 |
frodo |
2 |
psiconv_debug(lev+3,off+len,"Found Replacement section at %08x", |
75 |
|
|
replacement_sec); |
76 |
|
|
} else if (temp == PSICONV_ID_TEXTED_UNKNOWN) { |
77 |
frodo |
64 |
unknown_sec= psiconv_read_u32(buf,lev+3,off+len,&res); |
78 |
|
|
if (res) |
79 |
|
|
goto ERROR2; |
80 |
frodo |
2 |
if (unknown_sec) { |
81 |
|
|
psiconv_warn(lev+3,off+len, |
82 |
frodo |
64 |
"Unknown section in TextEd jumptable has real offset (ignoring)"); |
83 |
frodo |
2 |
} |
84 |
|
|
psiconv_debug(lev+3,off+len,"Found Unknown section at %08x", |
85 |
|
|
unknown_sec); |
86 |
|
|
} else { |
87 |
frodo |
64 |
psiconv_warn(lev+3,off+len, |
88 |
|
|
"Unknown section in TextEd jumptable (ignoring)"); |
89 |
frodo |
2 |
psiconv_debug(lev+3,off+len,"Section ID %08x at offset %08x",temp, |
90 |
frodo |
64 |
psiconv_read_u32(buf,lev+3,off+len,NULL)); |
91 |
frodo |
2 |
} |
92 |
|
|
len += 4; |
93 |
|
|
} |
94 |
frodo |
64 |
if (res) |
95 |
|
|
goto ERROR2; |
96 |
frodo |
2 |
|
97 |
|
|
len += 4; |
98 |
|
|
psiconv_progress(lev+2,off+len,"Going to read the text"); |
99 |
frodo |
64 |
if ((res = psiconv_parse_text_section(buf,lev+2,off+len,&leng, |
100 |
|
|
&(*result)->paragraphs))) |
101 |
|
|
goto ERROR2; |
102 |
frodo |
2 |
len += leng; |
103 |
|
|
|
104 |
|
|
if (layout_sec) { |
105 |
|
|
psiconv_progress(lev+2,off+len,"Going to read the layout"); |
106 |
frodo |
64 |
if ((res = psiconv_parse_styleless_layout_section(buf,lev+2,layout_sec,NULL, |
107 |
frodo |
2 |
(*result)->paragraphs, |
108 |
frodo |
64 |
base_char,base_para))) |
109 |
|
|
goto ERROR3; |
110 |
frodo |
2 |
} |
111 |
|
|
|
112 |
|
|
#if 0 |
113 |
|
|
if (replacement_sec) { |
114 |
|
|
psiconv_progress(lev+2,off+len,"Going to read the replacements"); |
115 |
|
|
/* WHATEVER */ |
116 |
|
|
} |
117 |
|
|
#endif |
118 |
|
|
|
119 |
|
|
if (length) |
120 |
|
|
*length = len; |
121 |
|
|
|
122 |
|
|
psiconv_progress(lev+1,off+len-1,"End of TextEd section " |
123 |
|
|
"(total length: %08x", len); |
124 |
|
|
|
125 |
frodo |
64 |
return 0; |
126 |
|
|
|
127 |
|
|
ERROR3: |
128 |
|
|
psiconv_free_text_and_layout((*result)->paragraphs); |
129 |
|
|
ERROR2: |
130 |
|
|
free (*result); |
131 |
|
|
ERROR1: |
132 |
|
|
psiconv_warn(lev+1,off,"Reading of TextEd Section failed"); |
133 |
|
|
if (length) |
134 |
|
|
*length = 0; |
135 |
|
|
if (!res) |
136 |
|
|
return -PSICONV_E_NOMEM; |
137 |
|
|
else |
138 |
|
|
return res; |
139 |
frodo |
2 |
} |
140 |
|
|
|
141 |
|
|
|