Created
September 8, 2016 21:07
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Controlar la longitud del extracto de WordPress respetando las etiquetas HTML indicadas
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// según solución propuesta en http://wordpress.stackexchange.com/questions/141125/allow-html-in-excerpt | |
function wpse_allowedtags() { | |
// Add custom tags to this string | |
return '<br>,<p>'; | |
} | |
if ( ! function_exists( 'wpse_custom_wp_trim_excerpt' ) ) : | |
function wpse_custom_wp_trim_excerpt($wpse_excerpt) { | |
$raw_excerpt = $wpse_excerpt; | |
if ( '' == $wpse_excerpt ) { | |
$wpse_excerpt = get_the_content(''); | |
$wpse_excerpt = strip_shortcodes( $wpse_excerpt ); | |
$wpse_excerpt = apply_filters('the_content', $wpse_excerpt); | |
$wpse_excerpt = str_replace(']]>', ']]>', $wpse_excerpt); | |
$wpse_excerpt = strip_tags($wpse_excerpt, wpse_allowedtags()); /*IF you need to allow just certain tags. Delete if all tags are allowed */ | |
//Set the excerpt word count and only break after sentence is complete. | |
$excerpt_word_count = 65; | |
$excerpt_length = apply_filters('excerpt_length', $excerpt_word_count); | |
$tokens = array(); | |
$excerptOutput = ''; | |
$count = 0; | |
// Divide the string into tokens; HTML tags, or words, followed by any whitespace | |
preg_match_all('/(<[^>]+>|[^<>\s]+)\s*/u', $wpse_excerpt, $tokens); | |
foreach ($tokens[0] as $token) { | |
if ($count >= $excerpt_length && preg_match('/[\,\;\?\.\!]\s*$/uS', $token)) { | |
// Limit reached, continue until , ; ? . or ! occur at the end | |
$excerptOutput .= trim($token); | |
break; | |
} | |
// Add words to complete sentence | |
$count++; | |
// Append what's left of the token | |
$excerptOutput .= $token; | |
} | |
$wpse_excerpt = trim(force_balance_tags($excerptOutput)); | |
$excerpt_end = ' <a href="'. esc_url( get_permalink() ) . '">' . ' » ' . sprintf(__( 'Read more about: %s »', 'wpse' ), get_the_title()) . '</a>'; | |
$excerpt_more = apply_filters('excerpt_more', ' ' . $excerpt_end); | |
//$pos = strrpos($wpse_excerpt, '</'); | |
//if ($pos !== false) | |
// Inside last HTML tag | |
//$wpse_excerpt = substr_replace($wpse_excerpt, $excerpt_end, $pos, 0); /* Add read more next to last word */ | |
//else | |
// After the content | |
$wpse_excerpt .= $excerpt_more; /*Add read more in new paragraph */ | |
return $wpse_excerpt; | |
} | |
return apply_filters('wpse_custom_wp_trim_excerpt', $wpse_excerpt, $raw_excerpt); | |
} | |
endif; | |
remove_filter('get_the_excerpt', 'wp_trim_excerpt'); | |
add_filter('get_the_excerpt', 'wpse_custom_wp_trim_excerpt'); |
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