1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
|
/* -*- Mode: C; tab-width: 8; indent-tabs-mode: t; c-basic-offset: 8 -*- */
/*
* Copyright (C) 2000 Helix Code Inc.
*
* Authors: Michael Zucchi <notzed@helixcode.com>
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License as
* published by the Free Software Foundation; either version 2 of the
* License, or (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307
* USA
*/
#include "camel-mime-filter-from.h"
#include <string.h>
#define d(x)
struct _CamelMimeFilterFromPrivate {
};
#define _PRIVATE(o) (((CamelMimeFilterFrom *)(o))->priv)
static void camel_mime_filter_from_class_init (CamelMimeFilterFromClass *klass);
static void camel_mime_filter_from_init (CamelMimeFilterFrom *obj);
static CamelMimeFilterClass *camel_mime_filter_from_parent;
CamelType
camel_mime_filter_from_get_type (void)
{
static CamelType type = CAMEL_INVALID_TYPE;
if (type == CAMEL_INVALID_TYPE) {
type = camel_type_register (camel_mime_filter_get_type (), "CamelMimeFilterFrom",
sizeof (CamelMimeFilterFrom),
sizeof (CamelMimeFilterFromClass),
(CamelObjectClassInitFunc) camel_mime_filter_from_class_init,
NULL,
(CamelObjectInitFunc) camel_mime_filter_from_init,
NULL);
}
return type;
}
struct fromnode {
struct fromnode *next;
char *pointer;
};
static void
complete(CamelMimeFilter *mf, char *in, size_t len, size_t prespace, char **out, size_t *outlen, size_t *outprespace)
{
*out = in;
*outlen = len;
*outprespace = prespace;
}
/* Yes, it is complicated ... */
static void
filter(CamelMimeFilter *mf, char *in, size_t len, size_t prespace, char **out, size_t *outlen, size_t *outprespace)
{
CamelMimeFilterFrom *f = (CamelMimeFilterFrom *)mf;
register char *inptr, *inend;
int left;
int midline = f->midline;
int fromcount = 0;
struct fromnode *head = NULL, *tail = (struct fromnode *)&head, *node;
char *outptr;
inptr = in;
inend = inptr+len;
d(printf("Filtering '%.*s'\n", len, in));
/* first, see if we need to escape any from's */
while (inptr<inend) {
register int c = -1;
if (midline)
while (inptr < inend && (c = *inptr++) != '\n')
;
if (c == '\n' || !midline) {
left = inend-inptr;
if (left > 0) {
midline = TRUE;
if (left < 5) {
if (inptr[0] == 'F') {
camel_mime_filter_backup(mf, inptr, left);
midline = FALSE;
inend = inptr;
break;
}
} else {
if (!strncmp(inptr, "From ", 5)) {
fromcount++;
/* yes, we do alloc them on the stack ... at most we're going to get
len / 7 of them anyway */
node = alloca(sizeof(*node));
node->pointer = inptr;
node->next = NULL;
tail->next = node;
tail = node;
inptr += 5;
}
}
} else {
/* \n is at end of line, check next buffer */
midline = FALSE;
}
}
}
f->midline = midline;
if (fromcount > 0) {
camel_mime_filter_set_size(mf, len + fromcount, FALSE);
node = head;
inptr = in;
outptr = mf->outbuf;
while (node) {
memcpy(outptr, inptr, node->pointer - inptr);
outptr += node->pointer - inptr;
*outptr++ = '>';
inptr = node->pointer;
node = node->next;
}
memcpy(outptr, inptr, inend - inptr);
outptr += inend - inptr;
*out = mf->outbuf;
*outlen = outptr - mf->outbuf;
*outprespace = mf->outbuf - mf->outreal;
d(printf("Filtered '%.*s'\n", *outlen, *out));
} else {
*out = in;
*outlen = inend - in;
*outprespace = prespace;
d(printf("Filtered '%.*s'\n", *outlen, *out));
}
}
static void
camel_mime_filter_from_class_init (CamelMimeFilterFromClass *klass)
{
CamelMimeFilterClass *filter_class = (CamelMimeFilterClass *) klass;
camel_mime_filter_from_parent = CAMEL_MIME_FILTER_CLASS (camel_type_get_global_classfuncs (camel_mime_filter_get_type ()));
filter_class->filter = filter;
filter_class->complete = complete;
}
static void
camel_mime_filter_from_init (CamelMimeFilterFrom *obj)
{
struct _CamelMimeFilterFromPrivate *p;
p = _PRIVATE(obj) = g_malloc0(sizeof(*p));
obj->midline = FALSE;
}
/**
* camel_mime_filter_from_new:
*
* Create a new CamelMimeFilterFrom object.
*
* Return value: A new CamelMimeFilterFrom widget.
**/
CamelMimeFilterFrom *
camel_mime_filter_from_new (void)
{
CamelMimeFilterFrom *new = CAMEL_MIME_FILTER_FROM ( camel_object_new (camel_mime_filter_from_get_type ()));
return new;
}
#if 0
#include <stdio.h>
int main(int argc, char **argv)
{
CamelMimeFilterFrom *f;
char *buffer;
int len, prespace;
g_tk_init(&argc, &argv);
f = camel_mime_filter_from_new();
buffer = "This is a test\nFrom Someone\nTo someone. From Someone else, From\n From blah\nFromblah\nBye! \nFrom ";
len = strlen(buffer);
prespace = 0;
printf("input = '%.*s'\n", len, buffer);
camel_mime_filter_filter(f, buffer, len, prespace, &buffer, &len, &prespace);
printf("output = '%.*s'\n", len, buffer);
buffer = "";
len = 0;
prespace = 0;
camel_mime_filter_complete(f, buffer, len, prespace, &buffer, &len, &prespace);
printf("complete = '%.*s'\n", len, buffer);
return 0;
}
#endif
|
