view modules/biblio/includes/Name.php @ 6:a75ead649730

added biblio, admin_menu and reference modules

<?php
/**
 * Does cutting and matching stuff with a name string.
 * Note that the string has to be UTF8-encoded.
 *
 */
class HumanNameParser_Name {
  private $str;

  function __construct($str)
  {
    $this->setStr($str);
  }

  /**
   * Checks encoding, normalizes whitespace/punctuation, and sets the name string.
   *
   * @param String $str a utf8-encoding string.
   * @return Bool True on success
   */
  public function setStr($str)
  {
    if (!drupal_validate_utf8($str)){
      throw new Exception("Name is not encoded in UTF-8");
    }
    $this->str = $str;
    $this->norm();
    return true;
  }

  public function getStr()
  {
    return $this->str;
  }


  /**
   * Uses a regex to chop off and return part of the namestring
   * There are two parts: first, it returns the matched substring,
   * and then it removes that substring from $this->str and normalizes.
   *
   * @param string $regex matches the part of the namestring to chop off
   * @param integer $submatchIndex	which of the parenthesized submatches to use
   * @param string	$regexFlags	optional regex flags
   * @return string	the part of the namestring that got chopped off
   */
  public function chopWithRegex($regex, $submatchIndex = 0, $regexFlags = '')
  {
    $regex = $regex . "ui" . $regexFlags; // unicode + case-insensitive
    preg_match($regex, $this->str, $m);
    $subset = (isset($m[$submatchIndex])) ? $m[$submatchIndex] : '';

    if ($subset){
      $this->str = preg_replace($regex, ' ', $this->str, -1, $numReplacements);
      if ($numReplacements > 1){
        throw new Exception("The regex being used to find the name: '$this->str' has multiple matches.");
      }
      $this->norm();
      return $subset;
    }
    else {
      return '';
    }
  }

  /*
   * Flips the front and back parts of a name with one another.
  * Front and back are determined by a specified character somewhere in the
  * middle of the string.
  *
  * @param	String $flipAroundChar	the character(s) demarcating the two halves you want to flip.
  * @return Bool True on success.
  */
  public function flip($flipAroundChar)
  {
    $substrings = preg_split("/$flipAroundChar/u", $this->str);
    if (count($substrings) == 2){
      $this->str = $substrings[1] . " " . $substrings[0];
      $this->norm();
    }
    else if (count($substrings) > 2) {
      throw new Exception("Can't flip around multiple '$flipAroundChar' characters in: '$this->str'.");
    }
    return true; // if there's 1 or 0 $flipAroundChar found
  }

  /**
   * Removes extra whitespace and punctuation from $this->str
   * Strips whitespace chars from ends, strips redundant whitespace, converts whitespace chars to " ".
   *
   * @return Bool True on success
   */
  private function norm()
  {
    $this->str = preg_replace( "#^\s*#u", "", $this->str );
    $this->str = preg_replace( "#\s*$#u", "", $this->str );
    $this->str = preg_replace( "#\s+#u", " ", $this->str );
    $this->str = preg_replace( "#,$#u", " ", $this->str );
    return true;
  }
}
?>