ILIAS  release_5-1 Revision 5.0.0-5477-g43f3e3fab5f
HTMLPurifier_ContentSets Class Reference
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Public Member Functions

 __construct ($modules)
 Merges in module's content sets, expands identifiers in the content sets and populates the keys, values and lookup member variables. More...
 
 generateChildDef (&$def, $module)
 Accepts a definition; generates and assigns a ChildDef for it. More...
 
 generateChildDefCallback ($matches)
 
 getChildDef ($def, $module)
 Instantiates a ChildDef based on content_model and content_model_type member variables in HTMLPurifier_ElementDef. More...
 

Data Fields

 $info = array()
 List of content set strings (pipe separators) indexed by name. More...
 
 $lookup = array()
 List of content set lookups (element => true) indexed by name. More...
 

Protected Member Functions

 convertToLookup ($string)
 Converts a string list of elements separated by pipes into a lookup array. More...
 

Protected Attributes

 $keys = array()
 Synchronized list of defined content sets (keys of info). More...
 
 $values = array()
 Synchronized list of defined content values (values of info). More...
 

Detailed Description

Todo:
Unit test

Definition at line 6 of file ContentSets.php.

Constructor & Destructor Documentation

◆ __construct()

HTMLPurifier_ContentSets::__construct (   $modules)

Merges in module's content sets, expands identifiers in the content sets and populates the keys, values and lookup member variables.

Parameters
HTMLPurifier_HTMLModule[]$modulesList of HTMLPurifier_HTMLModule

Definition at line 38 of file ContentSets.php.

39 {
40 if (!is_array($modules)) {
41 $modules = array($modules);
42 }
43 // populate content_sets based on module hints
44 // sorry, no way of overloading
45 foreach ($modules as $module) {
46 foreach ($module->content_sets as $key => $value) {
47 $temp = $this->convertToLookup($value);
48 if (isset($this->lookup[$key])) {
49 // add it into the existing content set
50 $this->lookup[$key] = array_merge($this->lookup[$key], $temp);
51 } else {
52 $this->lookup[$key] = $temp;
53 }
54 }
55 }
56 $old_lookup = false;
57 while ($old_lookup !== $this->lookup) {
58 $old_lookup = $this->lookup;
59 foreach ($this->lookup as $i => $set) {
60 $add = array();
61 foreach ($set as $element => $x) {
62 if (isset($this->lookup[$element])) {
63 $add += $this->lookup[$element];
64 unset($this->lookup[$i][$element]);
65 }
66 }
67 $this->lookup[$i] += $add;
68 }
69 }
70
71 foreach ($this->lookup as $key => $lookup) {
72 $this->info[$key] = implode(' | ', array_keys($lookup));
73 }
74 $this->keys = array_keys($this->info);
75 $this->values = array_values($this->info);
76 }
$lookup
List of content set lookups (element => true) indexed by name.
Definition: ContentSets.php:20
convertToLookup($string)
Converts a string list of elements separated by pipes into a lookup array.
$x
Definition: example_009.php:98

References $lookup, $x, and convertToLookup().

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Member Function Documentation

◆ convertToLookup()

HTMLPurifier_ContentSets::convertToLookup (   $string)
protected

Converts a string list of elements separated by pipes into a lookup array.

Parameters
string$stringList of elements
Returns
array Lookup array of elements

Definition at line 159 of file ContentSets.php.

160 {
161 $array = explode('|', str_replace(' ', '', $string));
162 $ret = array();
163 foreach ($array as $k) {
164 $ret[$k] = true;
165 }
166 return $ret;
167 }

References $ret.

Referenced by __construct().

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◆ generateChildDef()

HTMLPurifier_ContentSets::generateChildDef ( $def,
  $module 
)

Accepts a definition; generates and assigns a ChildDef for it.

Parameters
HTMLPurifier_ElementDef$defHTMLPurifier_ElementDef reference
HTMLPurifier_HTMLModule$moduleModule that defined the ElementDef

Definition at line 83 of file ContentSets.php.

84 {
85 if (!empty($def->child)) { // already done!
86 return;
87 }
88 $content_model = $def->content_model;
89 if (is_string($content_model)) {
90 // Assume that $this->keys is alphanumeric
91 $def->content_model = preg_replace_callback(
92 '/\b(' . implode('|', $this->keys) . ')\b/',
93 array($this, 'generateChildDefCallback'),
94 $content_model
95 );
96 //$def->content_model = str_replace(
97 // $this->keys, $this->values, $content_model);
98 }
99 $def->child = $this->getChildDef($def, $module);
100 }
getChildDef($def, $module)
Instantiates a ChildDef based on content_model and content_model_type member variables in HTMLPurifie...

References getChildDef().

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◆ generateChildDefCallback()

HTMLPurifier_ContentSets::generateChildDefCallback (   $matches)

Definition at line 102 of file ContentSets.php.

103 {
104 return $this->info[$matches[0]];
105 }

◆ getChildDef()

HTMLPurifier_ContentSets::getChildDef (   $def,
  $module 
)

Instantiates a ChildDef based on content_model and content_model_type member variables in HTMLPurifier_ElementDef.

Note
This will also defer to modules for custom HTMLPurifier_ChildDef subclasses that need content set expansion
Parameters
HTMLPurifier_ElementDef$defHTMLPurifier_ElementDef to have ChildDef extracted
HTMLPurifier_HTMLModule$moduleModule that defined the ElementDef
Returns
HTMLPurifier_ChildDef corresponding to ElementDef

Definition at line 116 of file ContentSets.php.

117 {
118 $value = $def->content_model;
119 if (is_object($value)) {
120 trigger_error(
121 'Literal object child definitions should be stored in '.
122 'ElementDef->child not ElementDef->content_model',
123 E_USER_NOTICE
124 );
125 return $value;
126 }
127 switch ($def->content_model_type) {
128 case 'required':
129 return new HTMLPurifier_ChildDef_Required($value);
130 case 'optional':
131 return new HTMLPurifier_ChildDef_Optional($value);
132 case 'empty':
133 return new HTMLPurifier_ChildDef_Empty();
134 case 'custom':
135 return new HTMLPurifier_ChildDef_Custom($value);
136 }
137 // defer to its module
138 $return = false;
139 if ($module->defines_child_def) { // save a func call
140 $return = $module->getChildDef($def);
141 }
142 if ($return !== false) {
143 return $return;
144 }
145 // error-out
146 trigger_error(
147 'Could not determine which ChildDef class to instantiate',
148 E_USER_ERROR
149 );
150 return false;
151 }
Custom validation class, accepts DTD child definitions.
Definition: Custom.php:10
Definition that disallows all elements.
Definition: Empty.php:11
Definition that allows a set of elements, and allows no children.
Definition: Optional.php:11
Definition that allows a set of elements, but disallows empty children.
Definition: Required.php:7

Referenced by generateChildDef().

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Field Documentation

◆ $info

HTMLPurifier_ContentSets::$info = array()

List of content set strings (pipe separators) indexed by name.

@type array

Definition at line 13 of file ContentSets.php.

◆ $keys

HTMLPurifier_ContentSets::$keys = array()
protected

Synchronized list of defined content sets (keys of info).

@type array

Definition at line 26 of file ContentSets.php.

◆ $lookup

HTMLPurifier_ContentSets::$lookup = array()

List of content set lookups (element => true) indexed by name.

@type array

Note
This is in HTMLPurifier_HTMLDefinition->info_content_sets

Definition at line 20 of file ContentSets.php.

Referenced by __construct().

◆ $values

HTMLPurifier_ContentSets::$values = array()
protected

Synchronized list of defined content values (values of info).

@type array

Definition at line 31 of file ContentSets.php.


The documentation for this class was generated from the following file: