original_string: protected function buildCharsMatch($specialChars)
      {
          $specialCharsArray = str_split($specialChars);
  
          $specialCharsMatch = implode('|', array_map(function ($char) {
              return $char.'+';
          }, $specialCharsArray));
  
          return $specialCharsMatch;
      }
code: protected function buildCharsMatch($specialChars)
      {
          $specialCharsArray = str_split($specialChars);
  
          $specialCharsMatch = implode('|', array_map(function ($char) {
              return $char.'+';
          }, $specialCharsArray));
  
          return $specialCharsMatch;
      }
code_tokens: protected function buildCharsMatch ( $ specialChars ) { $ specialCharsArray = str_split ( $ specialChars ) ; $ specialCharsMatch = implode ( '|' , array_map ( function ( $ char ) { return $ char . '+' ; } , $ specialCharsArray ) ) ; return $ specialCharsMatch ; }
docstring: Builds a chars match regular expression.
  
  @param string $specialChars A string of chars to build the regular expression
  
  @return string The chars match regular expression
docstring_tokens: Builds a chars match regular expression .