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
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
|
<?php
/**
* PHPTAL templating engine
*
* PHP Version 5
*
* @category HTML
* @package PHPTAL
* @author Laurent Bedubourg <lbedubourg@motion-twin.com>
* @author Kornel Lesiński <kornel@aardvarkmedia.co.uk>
* @license http://www.gnu.org/licenses/lgpl.html GNU Lesser General Public License
* @version SVN: $Id$
* @link http://phptal.org/
*/
/**
* @package PHPTAL
* @subpackage Php
*/
class PHPTAL_Php_State
{
private $debug = false;
private $tales_mode = 'tales';
private $encoding;
private $output_mode;
private $phptal;
function __construct(PHPTAL $phptal)
{
$this->phptal = $phptal;
$this->encoding = $phptal->getEncoding();
$this->output_mode = $phptal->getOutputMode();
}
/**
* used by codewriter to get information for phptal:cache
*/
public function getCacheFilesBaseName()
{
return $this->phptal->getCodePath();
}
/**
* true if PHPTAL has translator set
*/
public function isTranslationOn()
{
return !!$this->phptal->getTranslator();
}
/**
* controlled by phptal:debug
*/
public function setDebug($bool)
{
$old = $this->debug;
$this->debug = $bool;
return $old;
}
/**
* if true, add additional diagnostic information to generated code
*/
public function isDebugOn()
{
return $this->debug;
}
/**
* Sets new and returns old TALES mode.
* Valid modes are 'tales' and 'php'
*
* @param string $mode
*
* @return string
*/
public function setTalesMode($mode)
{
$old = $this->tales_mode;
$this->tales_mode = $mode;
return $old;
}
public function getTalesMode()
{
return $this->tales_mode;
}
/**
* encoding used for both template input and output
*/
public function getEncoding()
{
return $this->encoding;
}
/**
* Syntax rules to follow in generated code
*
* @return one of PHPTAL::XHTML, PHPTAL::XML, PHPTAL::HTML5
*/
public function getOutputMode()
{
return $this->output_mode;
}
/**
* Load prefilter
*/
public function getPreFilterByName($name)
{
return $this->phptal->getPreFilterByName($name);
}
/**
* compile TALES expression according to current talesMode
* @return string with PHP code or array with expressions for TalesChainExecutor
*/
public function evaluateExpression($expression)
{
if ($this->getTalesMode() === 'php') {
return PHPTAL_Php_TalesInternal::php($expression);
}
return PHPTAL_Php_TalesInternal::compileToPHPExpressions($expression, false);
}
/**
* compile TALES expression according to current talesMode
* @return string with PHP code
*/
private function compileTalesToPHPExpression($expression)
{
if ($this->getTalesMode() === 'php') {
return PHPTAL_Php_TalesInternal::php($expression);
}
return PHPTAL_Php_TalesInternal::compileToPHPExpression($expression, false);
}
/**
* returns PHP code that generates given string, including dynamic replacements
*
* It's almost unused.
*/
public function interpolateTalesVarsInString($string)
{
return PHPTAL_Php_TalesInternal::parseString($string, false, ($this->getTalesMode() === 'tales') ? '' : 'php:' );
}
/**
* replaces ${} in string, expecting HTML-encoded input and HTML-escapes output
*/
public function interpolateTalesVarsInHTML($src)
{
return preg_replace_callback('/((?:\$\$)*)\$\{(structure |text )?(.*?)\}|((?:\$\$)+)\{/isS',
array($this,'_interpolateTalesVarsInHTMLCallback'), $src);
}
/**
* callback for interpolating TALES with HTML-escaping
*/
private function _interpolateTalesVarsInHTMLCallback($matches)
{
return $this->_interpolateTalesVarsCallback($matches, 'html');
}
/**
* replaces ${} in string, expecting CDATA (basically unescaped) input,
* generates output protected against breaking out of CDATA in XML/HTML
* (depending on current output mode).
*/
public function interpolateTalesVarsInCDATA($src)
{
return preg_replace_callback('/((?:\$\$)*)\$\{(structure |text )?(.*?)\}|((?:\$\$)+)\{/isS',
array($this,'_interpolateTalesVarsInCDATACallback'), $src);
}
/**
* callback for interpolating TALES with CDATA escaping
*/
private function _interpolateTalesVarsInCDATACallback($matches)
{
return $this->_interpolateTalesVarsCallback($matches, 'cdata');
}
private function _interpolateTalesVarsCallback($matches, $format)
{
// replaces $${ with literal ${ (or $$$${ with $${ etc)
if (!empty($matches[4])) {
return substr($matches[4], strlen($matches[4])/2).'{';
}
// same replacement, but before executed expression
$dollars = substr($matches[1], strlen($matches[1])/2);
$code = $matches[3];
if ($format == 'html') {
$code = html_entity_decode($code, ENT_QUOTES, $this->getEncoding());
}
$code = $this->compileTalesToPHPExpression($code);
if (rtrim($matches[2]) == 'structure') { // regex captures a space there
return $dollars.'<?php echo '.$this->stringify($code)." ?>\n";
} else {
if ($format == 'html') {
return $dollars.'<?php echo '.$this->htmlchars($code)." ?>\n";
}
if ($format == 'cdata') {
// quite complex for an "unescaped" section, isn't it?
if ($this->getOutputMode() === PHPTAL::HTML5) {
return $dollars."<?php echo str_replace('</','<\\\\/', ".$this->stringify($code).") ?>\n";
} elseif ($this->getOutputMode() === PHPTAL::XHTML) {
// both XML and HMTL, because people will inevitably send it as text/html :(
return $dollars."<?php echo strtr(".$this->stringify($code)." ,array(']]>'=>']]]]><![CDATA[>','</'=>'<\\/')) ?>\n";
} else {
return $dollars."<?php echo str_replace(']]>',']]]]><![CDATA[>', ".$this->stringify($code).") ?>\n";
}
}
assert(0);
}
}
/**
* expects PHP code and returns PHP code that will generate escaped string
* Optimizes case when PHP string is given.
*
* @return php code
*/
public function htmlchars($php)
{
// PHP strings can be escaped at compile time
if (preg_match('/^\'((?:[^\'{]+|\\\\.)*)\'$/s', $php, $m)) {
return "'".htmlspecialchars(str_replace('\\\'', "'", $m[1]), ENT_QUOTES, $this->encoding)."'";
}
return 'phptal_escape('.$php.', \''.$this->encoding.'\')';
}
/**
* allow proper printing of any object
* (without escaping - for use with structure keyword)
*
* @return php code
*/
public function stringify($php)
{
// PHP strings don't need to be changed
if (preg_match('/^\'(?>[^\'\\\\]+|\\\\.)*\'$|^\s*"(?>[^"\\\\]+|\\\\.)*"\s*$/s', $php)) {
return $php;
}
return 'phptal_tostring('.$php.')';
}
}
|
