parse($authors); print_r($creatorArray); ***********************/ class PARSECREATORS { function PARSECREATORS() { } /* Create writer arrays from bibtex input. 'author field can be (delimiters between authors are 'and' or '&'): 1. 2. , 3. , , */ function parse($input) { $input = trim($input); // split on ' and ' $authorArray = preg_split("/\s(and|&)\s/i", $input); foreach($authorArray as $value) { $appellation = $prefix = $surname = $firstname = $initials = ''; $this->prefix = array(); $author = explode(",", preg_replace("/\s{2,}/", ' ', trim($value))); $size = sizeof($author); // No commas therefore something like Mark Grimshaw, Mark Nicholas Grimshaw, M N Grimshaw, Mark N. Grimshaw if($size == 1) { // Is complete surname enclosed in {...} if(preg_match("/(.*){(.*)}/", $value, $matches)) { $author = split(" ", $matches[1]); $surname = $matches[2]; } else { $author = split(" ", $value); // last of array is surname (no prefix if entered correctly) $surname = array_pop($author); } } // Something like Grimshaw, Mark or Grimshaw, Mark Nicholas or Grimshaw, M N or Grimshaw, Mark N. else if($size == 2) { // first of array is surname (perhaps with prefix) list($surname, $prefix) = $this->grabSurname(array_shift($author)); } // If $size is 3, we're looking at something like Bush, Jr. III, George W else { // middle of array is 'Jr.', 'IV' etc. $appellation = join(' ', array_splice($author, 1, 1)); // first of array is surname (perhaps with prefix) list($surname, $prefix) = $this->grabSurname(array_shift($author)); } $remainder = join(" ", $author); list($firstname, $initials) = $this->grabFirstnameInitials($remainder); if(!empty($this->prefix)) $prefix = join(' ', $this->prefix); $surname = $surname . ' ' . $appellation; $creators[] = array("$firstname", "$initials", "$surname", "$prefix"); } if(isset($creators)) return $creators; return FALSE; } // grab firstname and initials which may be of form "A.B.C." or "A. B. C. " or " A B C " etc. function grabFirstnameInitials($remainder) { $firstname = $initials = ''; $array = split(" ", $remainder); foreach($array as $value) { $firstChar = substr($value, 0, 1); if((ord($firstChar) >= 97) && (ord($firstChar) <= 122)) $this->prefix[] = $value; else if(preg_match("/[a-zA-Z\-]{2,}/", trim($value))) $firstnameArray[] = trim($value); else $initialsArray[] = str_replace(".", " ", trim($value)); } if(isset($initialsArray)) { foreach($initialsArray as $initial) $initials .= ' ' . trim($initial); } if(isset($firstnameArray)) $firstname = join(" ", $firstnameArray); return array($firstname, $initials); } // surname may have title such as 'den', 'von', 'de la' etc. - characterised by first character lowercased. Any // uppercased part means lowercased parts following are part of the surname (e.g. Van den Bussche) function grabSurname($input) { $surnameArray = split(" ", $input); $noPrefix = $surname = FALSE; foreach($surnameArray as $value) { $firstChar = substr($value, 0, 1); if(!$noPrefix && (ord($firstChar) >= 97) && (ord($firstChar) <= 122)) $prefix[] = $value; else { $surname[] = $value; $noPrefix = TRUE; } } if($surname) $surname = join(" ", $surname); if(isset($prefix)) { $prefix = join(" ", $prefix); return array($surname, $prefix); } return array($surname, FALSE); } } ?>