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
|
<?php
/**
* Smarty Internal Plugin CompileBase
*
* @package Smarty
* @subpackage Compiler
* @author Uwe Tews
*/
/**
* This class does extend all internal compile plugins
*/
// abstract class Smarty_Internal_CompileBase implements TagCompilerInterface
class Smarty_Internal_CompileBase {
public $required_attributes = array();
public $optional_attributes = array();
public $shorttag_order = array();
public $option_flags = array('nocache');
/**
* This function checks if the attributes passed are valid
*
* The attributes passed for the tag to compile are checked against the list of required and
* optional attributes. Required attributes must be present. Optional attributes are check against
* against the corresponding list. The keyword '_any' specifies that any attribute will be accepted
* as valid
*
* @param array $attributes attributes applied to the tag
* @return array of mapped attributes for further processing
*/
function _get_attributes ($attributes)
{
$_indexed_attr = array();
// loop over attributes
foreach ($attributes as $key => $mixed) {
// shorthand ?
if (!is_array($mixed)) {
// option flag ?
if (in_array(trim($mixed, '\'"'), $this->option_flags)) {
$_indexed_attr[trim($mixed, '\'"')] = true;
// shorthand attribute ?
} else if (isset($this->shorttag_order[$key])) {
$_indexed_attr[$this->shorttag_order[$key]] = $mixed;
} else {
// too many shorthands
$this->compiler->trigger_template_error('too many shorthand attributes', $this->compiler->lex->taglineno);
}
// named attribute
} else {
$kv = each($mixed);
// option flag?
if (in_array($kv['key'], $this->option_flags)) {
if (is_bool($kv['value'])) {
$_indexed_attr[$kv['key']] = $kv['value'];
} else if (is_string($kv['value']) && in_array(trim($kv['value'], '\'"'), array('true', 'false'))) {
if (trim($kv['value']) == 'true') {
$_indexed_attr[$kv['key']] = true;
} else {
$_indexed_attr[$kv['key']] = false;
}
} else if (is_numeric($kv['value']) && in_array($kv['value'], array(0, 1))) {
if ($kv['value'] == 1) {
$_indexed_attr[$kv['key']] = true;
} else {
$_indexed_attr[$kv['key']] = false;
}
} else {
$this->compiler->trigger_template_error("illegal value of option flag \"{$kv['key']}\"", $this->compiler->lex->taglineno);
}
// must be named attribute
} else {
reset($mixed);
$_indexed_attr[key($mixed)] = $mixed[key($mixed)];
}
}
}
// check if all required attributes present
foreach ($this->required_attributes as $attr) {
if (!array_key_exists($attr, $_indexed_attr)) {
$this->compiler->trigger_template_error("missing \"" . $attr . "\" attribute", $this->compiler->lex->taglineno);
}
}
// check for unallowed attributes
if ($this->optional_attributes != array('_any')) {
$tmp_array = array_merge($this->required_attributes, $this->optional_attributes, $this->option_flags);
foreach ($_indexed_attr as $key => $dummy) {
if (!in_array($key, $tmp_array) && $key !== 0) {
$this->compiler->trigger_template_error("unexpected \"" . $key . "\" attribute", $this->compiler->lex->taglineno);
}
}
}
// default 'false' for all option flags not set
foreach ($this->option_flags as $flag) {
if (!isset($_indexed_attr[$flag])) {
$_indexed_attr[$flag] = false;
}
}
return $_indexed_attr;
}
/**
* Push opening tag name on stack
*
* Optionally additional data can be saved on stack
*
* @param string $open_tag the opening tag's name
* @param anytype $data optional data which shall be saved on stack
*/
function _open_tag($open_tag, $data = null)
{
array_push($this->compiler->_tag_stack, array($open_tag, $data));
}
/**
* Pop closing tag
*
* Raise an error if this stack-top doesn't match with expected opening tags
*
* @param array $ |string $expected_tag the expected opening tag names
* @return anytype the opening tag's name or saved data
*/
function _close_tag($expected_tag)
{
if (count($this->compiler->_tag_stack) > 0) {
// get stacked info
list($_open_tag, $_data) = array_pop($this->compiler->_tag_stack);
// open tag must match with the expected ones
if (in_array($_open_tag, (array)$expected_tag)) {
if (is_null($_data)) {
// return opening tag
return $_open_tag;
} else {
// return restored data
return $_data;
}
}
// wrong nesting of tags
$this->compiler->trigger_template_error("unclosed {" . $_open_tag . "} tag");
return;
}
// wrong nesting of tags
$this->compiler->trigger_template_error("unexpected closing tag", $this->compiler->lex->taglineno);
return;
}
}
?>
|
