<?php
/*
* This file is part of the league/commonmark package.
*
* (c) Colin O'Dell <[email protected]>
*
* Original code based on the CommonMark JS reference parser (https://bitly.com/commonmark-js)
* - (c) John MacFarlane
*
* Additional emphasis processing code based on commonmark-java (https://github.com/atlassian/commonmark-java)
* - (c) Atlassian Pty Ltd
*
* For the full copyright and license information, please view the LICENSE
* file that was distributed with this source code.
*/
namespace League\CommonMark\Delimiter\Processor;
use League\CommonMark\Delimiter\DelimiterInterface;
use League\CommonMark\Inline\Element\AbstractStringContainer;
/**
* Interface for a delimiter processor
*/
interface DelimiterProcessorInterface
{
/**
* Returns the character that marks the beginning of a delimited node.
*
* This must not clash with any other processors being added to the environment.
*
* @return string
*/
public function getOpeningCharacter(): string;
/**
* Returns the character that marks the ending of a delimited node.
*
* This must not clash with any other processors being added to the environment.
*
* Note that for a symmetric delimiter such as "*", this is the same as the opening.
*
* @return string
*/
public function getClosingCharacter(): string;
/**
* Minimum number of delimiter characters that are needed to active this.
*
* Must be at least 1.
*
* @return int
*/
public function getMinLength(): int;
/**
* Determine how many (if any) of the delimiter characters should be used.
*
* This allows implementations to decide how many characters to be used
* based on the properties of the delimiter runs. An implementation can also
* return 0 when it doesn't want to allow this particular combination of
* delimiter runs.
*
* @param DelimiterInterface $opener The opening delimiter run
* @param DelimiterInterface $closer The closing delimiter run
*
* @return int
*/
public function getDelimiterUse(DelimiterInterface $opener, DelimiterInterface $closer): int;
/**
* Process the matched delimiters, e.g. by wrapping the nodes between opener
* and closer in a new node, or appending a new node after the opener.
*
* Note that removal of the delimiter from the delimiter nodes and detaching
* them is done by the caller.
*
* @param AbstractStringContainer $opener The node that contained the opening delimiter
* @param AbstractStringContainer $closer The node that contained the closing delimiter
* @param int $delimiterUse The number of delimiters that were used
*
* @return void
*/
public function process(AbstractStringContainer $opener, AbstractStringContainer $closer, int $delimiterUse);
}