48 lines
1.4 KiB
PHP
48 lines
1.4 KiB
PHP
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<?php
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/**
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* Returns a HTML formatted string of the table of contents without the surrounding UL or OL
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* tags to enable the theme editor to supply their own ID and/or classes to the outer list.
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*
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* There are three optional parameters you can feed this function with:
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*
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* - $content is the entire content with headings. If blank, will default to the current $post
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*
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* - $link is the URL to prefix the anchor with. If provided a string, will use it as the prefix.
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* If set to true then will try to obtain the permalink from the $post object.
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*
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* - $apply_eligibility bool, defaults to false. When set to true, will apply the check to
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* see if bit of content has the prerequisites needed for a TOC, eg minimum number of headings
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* enabled post type, etc.
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*/
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function toc_get_index( $content = '', $prefix_url = '', $apply_eligibility = false ) {
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global $wp_query, $toc_plus;
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$return = '';
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$find = [];
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$replace = [];
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$proceed = true;
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if ( ! $content ) {
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$post = get_post( $wp_query->post->ID );
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$content = wptexturize( $post->post_content );
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}
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if ( $apply_eligibility ) {
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if ( ! $toc_plus->is_eligible() ) {
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$proceed = false;
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}
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} else {
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$toc_plus->set_option( [ 'start' => 0 ] );
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}
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if ( $proceed ) {
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$return = $toc_plus->extract_headings( $find, $replace, $content );
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if ( $prefix_url ) {
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$return = str_replace( 'href="#', 'href="' . $prefix_url . '#', $return );
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}
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}
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return $return;
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}
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