Source
File: wp-admin/includes/misc.php
function wp_doc_link_parse( $content ) {
if ( ! is_string( $content ) || empty( $content ) ) {
return array();
}
if ( ! function_exists( 'token_get_all' ) ) {
return array();
}
$tokens = token_get_all( $content );
$count = count( $tokens );
$functions = array();
$ignore_functions = array();
for ( $t = 0; $t < $count - 2; $t++ ) {
if ( ! is_array( $tokens[ $t ] ) ) {
continue;
}
if ( T_STRING == $tokens[ $t ][0] && ( '(' === $tokens[ $t + 1 ] || '(' === $tokens[ $t + 2 ] ) ) {
// If it's a function or class defined locally, there's not going to be any docs available.
if ( ( isset( $tokens[ $t - 2 ][1] ) && in_array( $tokens[ $t - 2 ][1], array( 'function', 'class' ), true ) )
|| ( isset( $tokens[ $t - 2 ][0] ) && T_OBJECT_OPERATOR == $tokens[ $t - 1 ][0] )
) {
$ignore_functions[] = $tokens[ $t ][1];
}
// Add this to our stack of unique references.
$functions[] = $tokens[ $t ][1];
}
}
$functions = array_unique( $functions );
sort( $functions );
/**
* Filters the list of functions and classes to be ignored from the documentation lookup.
*
* @since 2.8.0
*
* @param string[] $ignore_functions Array of names of functions and classes to be ignored.
*/
$ignore_functions = apply_filters( 'documentation_ignore_functions', $ignore_functions );
$ignore_functions = array_unique( $ignore_functions );
$out = array();
foreach ( $functions as $function ) {
if ( in_array( $function, $ignore_functions, true ) ) {
continue;
}
$out[] = $function;
}
return $out;
}