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-rw-r--r--vendor/ezyang/htmlpurifier/library/HTMLPurifier/AttrTransform/EnumToCSS.php68
1 files changed, 68 insertions, 0 deletions
diff --git a/vendor/ezyang/htmlpurifier/library/HTMLPurifier/AttrTransform/EnumToCSS.php b/vendor/ezyang/htmlpurifier/library/HTMLPurifier/AttrTransform/EnumToCSS.php
new file mode 100644
index 000000000..7ccd0e3fb
--- /dev/null
+++ b/vendor/ezyang/htmlpurifier/library/HTMLPurifier/AttrTransform/EnumToCSS.php
@@ -0,0 +1,68 @@
+<?php
+
+/**
+ * Generic pre-transform that converts an attribute with a fixed number of
+ * values (enumerated) to CSS.
+ */
+class HTMLPurifier_AttrTransform_EnumToCSS extends HTMLPurifier_AttrTransform
+{
+ /**
+ * Name of attribute to transform from.
+ * @type string
+ */
+ protected $attr;
+
+ /**
+ * Lookup array of attribute values to CSS.
+ * @type array
+ */
+ protected $enumToCSS = array();
+
+ /**
+ * Case sensitivity of the matching.
+ * @type bool
+ * @warning Currently can only be guaranteed to work with ASCII
+ * values.
+ */
+ protected $caseSensitive = false;
+
+ /**
+ * @param string $attr Attribute name to transform from
+ * @param array $enum_to_css Lookup array of attribute values to CSS
+ * @param bool $case_sensitive Case sensitivity indicator, default false
+ */
+ public function __construct($attr, $enum_to_css, $case_sensitive = false)
+ {
+ $this->attr = $attr;
+ $this->enumToCSS = $enum_to_css;
+ $this->caseSensitive = (bool)$case_sensitive;
+ }
+
+ /**
+ * @param array $attr
+ * @param HTMLPurifier_Config $config
+ * @param HTMLPurifier_Context $context
+ * @return array
+ */
+ public function transform($attr, $config, $context)
+ {
+ if (!isset($attr[$this->attr])) {
+ return $attr;
+ }
+
+ $value = trim($attr[$this->attr]);
+ unset($attr[$this->attr]);
+
+ if (!$this->caseSensitive) {
+ $value = strtolower($value);
+ }
+
+ if (!isset($this->enumToCSS[$value])) {
+ return $attr;
+ }
+ $this->prependCSS($attr, $this->enumToCSS[$value]);
+ return $attr;
+ }
+}
+
+// vim: et sw=4 sts=4