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30 lines
504 B
PHP
30 lines
504 B
PHP
<?php
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/**
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* @file
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* @license https://opensource.org/licenses/Apache-2.0 Apache-2.0
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*/
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namespace Wikimedia\CSS\Parser;
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/**
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* Read data for the CSS parser
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*/
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interface DataSource {
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public const EOF = '';
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/**
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* Read a character from the data source.
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*
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* @return string One UTF-8 character, or self::EOF
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*/
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public function readCharacter();
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/**
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* Push a character back onto the stream.
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*
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* @param string $char One UTF-8 character
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*/
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public function putBackCharacter( $char );
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}
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