/home/ezyang/Dev/htmlpurifier/library/HTMLPurifier/AttrTransform/EnumToCSS.php

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<?php

class HTMLPurifier_AttrTransform_EnumToCSS extends HTMLPurifier_AttrTransform {

    protected $attr;

    protected $enumToCSS = array();

    protected $caseSensitive = false;

    public function __construct($attr, $enum_to_css, $case_sensitive = false) {
        $this->attr = $attr;
        $this->enumToCSS = $enum_to_css;
        $this->caseSensitive = (bool) $case_sensitive;
    }

    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;

    }

}

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