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
|
<?php
/**
+-----------------------------------------------------------------------+
| This file is part of the Roundcube Webmail client |
| |
| Copyright (C) The Roundcube Dev Team |
| |
| Licensed under the GNU General Public License version 3 or |
| any later version with exceptions for skins & plugins. |
| See the README file for a full license statement. |
| |
| PURPOSE: |
| Helper class to convert Enriched to HTML format (RFC 1523, 1896) |
+-----------------------------------------------------------------------+
| Author: Aleksander Machniak <alec@alec.pl> |
| Author: Ryo Chijiiwa (IlohaMail) |
+-----------------------------------------------------------------------+
*/
/**
* Class for Enriched to HTML conversion
*
* @package Framework
* @subpackage Utils
*/
class rcube_enriched
{
protected static function convert_newlines($body)
{
// remove single newlines, convert N newlines to N-1
$body = str_replace("\r\n", "\n", $body);
$len = strlen($body);
$nl = 0;
$out = '';
for ($i=0; $i<$len; $i++) {
$c = $body[$i];
if (ord($c) == 10) {
$nl++;
}
if ($nl && ord($c) != 10) {
$nl = 0;
}
if ($nl != 1) {
$out .= $c;
}
else {
$out .= ' ';
}
}
return $out;
}
protected static function convert_formatting($body)
{
$replace = [
'<bold>' => '<b>', '</bold>' => '</b>',
'<italic>' => '<i>', '</italic>' => '</i>',
'<fixed>' => '<tt>', '</fixed>' => '</tt>',
'<smaller>' => '<font size=-1>', '</smaller>'=> '</font>',
'<bigger>' => '<font size=+1>', '</bigger>' => '</font>',
'<underline>' => '<span style="text-decoration: underline">', '</underline>' => '</span>',
'<flushleft>' => '<span style="text-align: left">', '</flushleft>' => '</span>',
'<flushright>' => '<span style="text-align: right">', '</flushright>' => '</span>',
'<flushboth>' => '<span style="text-align: justified">', '</flushboth>' => '</span>',
'<indent>' => '<span style="padding-left: 20px">', '</indent>' => '</span>',
'<indentright>' => '<span style="padding-right: 20px">', '</indentright>' => '</span>',
];
return str_ireplace(array_keys($replace), array_values($replace), $body);
}
protected static function convert_font($body)
{
$pattern = '/(.*)\<fontfamily\>\<param\>(.*)\<\/param\>(.*)\<\/fontfamily\>(.*)/ims';
while (preg_match($pattern, $body, $a)) {
if (count($a) != 5) {
continue;
}
$body = $a[1].'<span style="font-family: '.$a[2].'">'.$a[3].'</span>'.$a[4];
}
return $body;
}
protected static function convert_color($body)
{
$pattern = '/(.*)\<color\>\<param\>(.*)\<\/param\>(.*)\<\/color\>(.*)/ims';
while (preg_match($pattern, $body, $a)) {
if (count($a) != 5) {
continue;
}
// extract color (either by name, or ####,####,####)
if (strpos($a[2],',')) {
$rgb = explode(',', $a[2]);
$color = '#';
for ($i=0; $i<3; $i++) {
$color .= substr($rgb[$i], 0, 2); // just take first 2 bytes
}
}
else {
$color = $a[2];
}
// put it all together
$body = $a[1].'<span style="color: '.$color.'">'.$a[3].'</span>'.$a[4];
}
return $body;
}
protected static function convert_excerpt($body)
{
$pattern = '/(.*)\<excerpt\>(.*)\<\/excerpt\>(.*)/i';
while (preg_match($pattern, $body, $a)) {
if (count($a) != 4) {
continue;
}
$quoted = '';
$lines = explode('<br>', $a[2]);
foreach ($lines as $line) {
$quoted .= '>'.$line.'<br>';
}
$body = $a[1].'<span class="quotes">'.$quoted.'</span>'.$a[3];
}
return $body;
}
/**
* Converts Enriched text into HTML format
*
* @param string $body Enriched text
*
* @return string HTML text
*/
public static function to_html($body)
{
$body = str_replace('<<','<',$body);
$body = self::convert_newlines($body);
$body = str_replace("\n", '<br>', $body);
$body = self::convert_formatting($body);
$body = self::convert_color($body);
$body = self::convert_font($body);
$body = self::convert_excerpt($body);
//$body = nl2br($body);
return $body;
}
}
|
