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
222
|
/*
* $Id: filter.h 1169 2008-08-27 06:42:06Z hubert@u.washington.edu $
*
* ========================================================================
* Copyright 2013-2019 Eduardo Chappa
* Copyright 2006-2007 University of Washington
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* ========================================================================
*/
#ifndef PITH_FILTER_INCLUDED
#define PITH_FILTER_INCLUDED
#include "../pith/filttype.h"
#include "../pith/handle.h"
#include "../pith/store.h"
#include "../pith/osdep/pipe.h"
/* gf_html2plain flags */
#define GFHP_STRIPPED 0x01
#define GFHP_HANDLES 0x02
#define GFHP_LOCAL_HANDLES 0x04
#define GFHP_NO_RELATIVE 0x08
#define GFHP_RELATED_CONTENT 0x10
#define GFHP_SHOW_SERVER 0x20
#define GFHP_HTML 0x40
#define GFHP_HTML_IMAGES 0x80
/* gf_wrap flags */
#define GFW_NONE 0x000 /* no flags */
#define GFW_HANDLES 0x001 /* anticipate handle data */
#define GFW_ONCOMMA 0x002 /* prefer comma wrap to spaces */
#define GFW_FLOWED 0x004
#define GFW_FLOW_RESULT 0x008
#define GFW_DELSP 0x010
#define GFW_USECOLOR 0x020
#define GFW_HDRCOLOR 0x040
#define GFW_FORCOMPOSE 0x080
#define GFW_SOFTHYPHEN 0x100 /* do something special with soft-hyphens */
/* gf_url_hilite flags */
#define URH_NONE 0x00 /* no flags */
#define URH_HDRCOLOR 0x01 /* in header, use header base color */
#define TAG_EMBED '\377' /* Announces embedded data in text string */
#define TAG_INVON 'A' /* Supported character attributes */
#define TAG_INVOFF 'a'
#define TAG_BOLDON 'B'
#define TAG_BOLDOFF 'b'
#define TAG_ULINEON 'C'
#define TAG_ULINEOFF 'c'
#define TAG_FGCOLOR 'D' /* Change to this foreground color */
#define TAG_BGCOLOR 'd' /* Change to this background color */
#define TAG_ITALICON 'E'
#define TAG_ITALICOFF 'e'
#define TAG_STRIKEON 'F'
#define TAG_STRIKEOFF 'f'
#define TAG_BIGON 'G'
#define TAG_BIGOFF 'g'
#define TAG_SMALLON 'H'
#define TAG_SMALLOFF 'h'
#define TAG_HANDLE 'Z' /* indicate's a handle to an action */
#define TAG_HANDLEOFF 'z' /* indicate's end of handle text */
typedef struct url_hilite_s {
HANDLE_S **handlesp;
int hdr_color;
} URL_HILITE_S;
typedef struct _rss_item_s {
char *title;
char *link;
char *description;
char *source;
struct _rss_item_s *next;
} RSS_ITEM_S;
typedef struct _rss_feed_s {
char *title;
char *image;
char *link;
char *description;
char *source;
int ttl;
struct _rss_item_s *items;
} RSS_FEED_S;
/*
* This searches for lines beginning with From<space> so that we can QP-encode
* them. It also searches for lines consisting of only a dot. Some mailers
* will mangle these lines. The reason it is ifdef'd is because most people
* seem to prefer the >From style escape provided by a lot of mail software
* to the QP-encoding.
* Froms, dots, bmap, and dmap may be any integer type. C is the next char.
* bmap and dmap should be initialized to 1.
* froms is incremented by 1 whenever a line beginning From_ is found.
* dots is incremented by 1 whenever a line with only a dot is found.
*/
#define Find_Froms(froms,dots,bmap,dmap,c) { int x,y; \
switch (c) { \
case '\n': case '\r': \
x = 0x1; \
y = 0x7; \
bmap = 0; \
break; \
case 'F': \
x = 0x3; \
y = 0; \
break; \
case 'r': \
x = 0x7; \
y = 0; \
break; \
case 'o': \
x = 0xf; \
y = 0; \
break; \
case 'm': \
x = 0x1f; \
y = 0; \
break; \
case ' ': \
x = 0x3f; \
y = 0; \
break; \
case '.': \
x = 0; \
y = 0x3; \
break; \
default: \
x = 0; \
y = 0; \
break; \
} \
bmap = ((x >> 1) == bmap) ? x : 0; \
froms += (bmap == 0x3f ? 1 : 0); \
if(y == 0x7 && dmap != 0x3){ \
y = 0x1; \
dmap = 0; \
} \
dmap = ((y >> 1) == dmap) ? y : 0; \
dots += (dmap == 0x7 ? 1 : 0); \
}
/* exported prototypes */
int generic_readc_locale(unsigned char *c,
int (*get_a_char)(unsigned char *, void *),
void *extraarg,
CBUF_S *cb);
int pc_is_picotext(gf_io_t);
void gf_set_readc(gf_io_t *, void *, unsigned long, SourceType, int);
void gf_set_writec(gf_io_t *, void *, unsigned long, SourceType, int);
void gf_set_so_readc(gf_io_t *, STORE_S *);
void gf_clear_so_readc(STORE_S *);
void gf_set_so_writec(gf_io_t *, STORE_S *);
void gf_clear_so_writec(STORE_S *);
int gf_puts(char *, gf_io_t);
int gf_nputs(char *, long, gf_io_t);
void gf_filter_init(void);
void gf_link_filter(filter_t, void *);
void gf_set_terminal(gf_io_t);
char *gf_pipe(gf_io_t, gf_io_t);
long gf_bytes_piped(void);
char *gf_filter(char *, char *, STORE_S *, gf_io_t, FILTLIST_S *, int,
int, void (*)(PIPE_S *, int, void *));
void gf_binary_b64(FILTER_S *, int);
void gf_b64_binary(FILTER_S *, int);
void gf_qp_8bit(FILTER_S *, int);
void gf_8bit_qp(FILTER_S *, int);
void gf_convert_8bit_charset(FILTER_S *, int);
void gf_convert_utf8_charset(FILTER_S *, int);
void *gf_convert_utf8_charset_opt(void *, int);
void gf_2022_jp_to_euc(FILTER_S *, int);
void gf_native8bitjapanese_to_2022_jp(FILTER_S *, int);
void gf_euc_to_2022_jp(FILTER_S *, int);
void gf_sjis_to_2022_jp(FILTER_S *, int);
void gf_utf8(FILTER_S *, int);
void *gf_utf8_opt(char *);
void gf_rich2plain(FILTER_S *, int);
void *gf_rich2plain_opt(int *);
void gf_enriched2plain(FILTER_S *, int);
void *gf_enriched2plain_opt(int *);
void gf_html2plain(FILTER_S *, int);
void *gf_html2plain_opt(char *, int, int *, HANDLE_S **, htmlrisk_t, int);
void *gf_html2plain_rss_opt(RSS_FEED_S **, int);
void gf_html2plain_rss_free(RSS_FEED_S **);
void gf_html2plain_rss_free_items(RSS_ITEM_S **);
void gf_escape_filter(FILTER_S *, int);
void gf_control_filter(FILTER_S *, int);
void *gf_control_filter_opt(int *);
void gf_tag_filter(FILTER_S *, int);
void gf_wrap(FILTER_S *, int);
void *gf_wrap_filter_opt(int, int, int *, int, int);
void gf_preflow(FILTER_S *, int);
void gf_prefix(FILTER_S *, int);
void *gf_prefix_opt(char *);
void gf_line_test(FILTER_S *, int);
void *gf_line_test_opt(linetest_t, void *);
LT_INS_S **gf_line_test_new_ins(LT_INS_S **, char *, char *, int);
void gf_line_test_free_ins(LT_INS_S **);
void gf_prepend_editorial(FILTER_S *, int);
void *gf_prepend_editorial_opt(prepedtest_t, char *);
void gf_nvtnl_local(FILTER_S *, int);
void gf_local_nvtnl(FILTER_S *, int);
void *gf_url_hilite_opt(URL_HILITE_S *, HANDLE_S **, int);
void free_filter_module_globals(void);
#endif /* PITH_FILTER_INCLUDED */
|
