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<?php
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namespace Sabberworm\CSS\Value;
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use Sabberworm\CSS\OutputFormat;
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/**
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 * A `ValueList` represents a lists of `Value`s, separated by some separation character
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 * (mostly `,`, whitespace, or `/`).
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 *
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 * There are two types of `ValueList`s: `RuleValueList` and `CSSFunction`
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 */
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abstract class ValueList extends Value
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{
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    /**
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     * @var array<int, RuleValueList|CSSFunction|CSSString|LineName|Size|URL|string>
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     */
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    protected $aComponents;
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    /**
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     * @var string
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     */
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    protected $sSeparator;
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    /**
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     * phpcs:ignore Generic.Files.LineLength
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     * @param array<int, RuleValueList|CSSFunction|CSSString|LineName|Size|URL|string>|RuleValueList|CSSFunction|CSSString|LineName|Size|URL|string $aComponents
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     * @param string $sSeparator
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     * @param int $iLineNo
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     */
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    public function __construct($aComponents = [], $sSeparator = ',', $iLineNo = 0)
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    {
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        parent::__construct($iLineNo);
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        if (!is_array($aComponents)) {
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            $aComponents = [$aComponents];
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        }
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        $this->aComponents = $aComponents;
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        $this->sSeparator = $sSeparator;
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    }
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    /**
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     * @param RuleValueList|CSSFunction|CSSString|LineName|Size|URL|string $mComponent
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     *
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     * @return void
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     */
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    public function addListComponent($mComponent)
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    {
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        $this->aComponents[] = $mComponent;
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    }
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    /**
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     * @return array<int, RuleValueList|CSSFunction|CSSString|LineName|Size|URL|string>
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     */
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    public function getListComponents()
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    {
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        return $this->aComponents;
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    }
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    /**
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     * @param array<int, RuleValueList|CSSFunction|CSSString|LineName|Size|URL|string> $aComponents
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     *
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     * @return void
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     */
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    public function setListComponents(array $aComponents)
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    {
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        $this->aComponents = $aComponents;
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    }
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    /**
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     * @return string
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     */
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    public function getListSeparator()
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    {
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        return $this->sSeparator;
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    }
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    /**
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     * @param string $sSeparator
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     *
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     * @return void
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     */
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    public function setListSeparator($sSeparator)
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    {
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        $this->sSeparator = $sSeparator;
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    }
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    /**
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     * @return string
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     */
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    public function __toString()
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    {
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        return $this->render(new OutputFormat());
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    }
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    /**
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     * @param OutputFormat|null $oOutputFormat
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     *
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     * @return string
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     */
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    public function render($oOutputFormat)
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    {
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        return $oOutputFormat->implode(
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            $oOutputFormat->spaceBeforeListArgumentSeparator($this->sSeparator) . $this->sSeparator
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            . $oOutputFormat->spaceAfterListArgumentSeparator($this->sSeparator),
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            $this->aComponents
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        );
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    }
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}