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synced 2025-07-12 19:26:24 +02:00
6573ea6e3c
Break out logic from the `next_token()` method into a private method which may call itself recursively. This allows for subclasses to override the `next_token()` method and be assured that each call to `next_token()` corresponds with the consumption of one single token. This also parallels how `WP_HTML_Tag_Processor::next_token()` wraps a private `base_class_next_token()` method. Props westonruter, jonsurrell. Fixes #62269. git-svn-id: https://develop.svn.wordpress.org/trunk@59285 602fd350-edb4-49c9-b593-d223f7449a82
89 lines
2.0 KiB
PHP
89 lines
2.0 KiB
PHP
<?php
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class HTML_XPath_Generating_Processor extends WP_HTML_Processor {
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/**
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* List of tokens that have already been seen.
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*
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* @var array<string, int>
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*/
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public $token_seen_count = array();
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/**
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* Previous depth.
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*
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* @var int
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*/
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private $previous_depth = 0;
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/**
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* Open stack indices.
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*
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* @since n.e.x.t
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* @var array<int, array{tag_name: string, index: int}>
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*/
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private $open_stack_indices = array();
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/**
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* Gets XPath for the current open tag.
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*
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* @return string XPath.
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*/
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public function get_xpath(): string {
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$xpath = '';
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foreach ( $this->open_stack_indices as $level ) {
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$xpath .= sprintf( '/*[%d][self::%s]', $level['index'] + 1, $level['tag_name'] );
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}
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return $xpath;
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}
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/**
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* Gets next token.
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*
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* @return bool Whether next token was matched.
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*/
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public function next_token(): bool {
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$result = parent::next_token();
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$current_depth = $this->get_current_depth();
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$current_tag = $this->get_tag();
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$current_depth--; // Because HTML starts at depth 1.
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if ( $this->get_token_type() === '#tag' ) {
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$token_name = ( $this->is_tag_closer() ? '-' : '+' ) . $current_tag;
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} else {
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$token_name = $this->get_token_name();
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}
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if ( ! isset( $this->token_seen_count[ $token_name ] ) ) {
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$this->token_seen_count[ $token_name ] = 1;
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} else {
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++$this->token_seen_count[ $token_name ];
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}
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if ( $this->get_token_type() === '#tag' && ! $this->is_tag_closer() ) {
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if ( $current_depth < $this->previous_depth ) {
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array_splice(
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$this->open_stack_indices,
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$current_depth + 1
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);
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}
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if ( ! isset( $this->open_stack_indices[ $current_depth ] ) ) {
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$this->open_stack_indices[ $current_depth ] = array(
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'tag_name' => $current_tag,
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'index' => 0,
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);
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} else {
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$this->open_stack_indices[ $current_depth ]['tag_name'] = $current_tag;
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++$this->open_stack_indices[ $current_depth ]['index'];
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}
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$this->previous_depth = $current_depth;
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}
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return $result;
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}
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}
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