original_string: protected function getNextTag()
      {
          $tagLetter = substr( $this->currentTag, 0, 1 );
          $tagNumber = intval( substr( $this->currentTag, 1 ) );
          $tagNumber++;
          if ( $tagLetter == 'Z' && $tagNumber == 10000 )
          {
              $tagLetter = 'A';
              $tagNumber = 1;
          }
          if ( $tagNumber == 10000 )
          {
              $tagLetter++;
              $tagNumber = 0;
          }
          $this->currentTag = $tagLetter . sprintf( "%04s", $tagNumber );
          return $this->currentTag;
      }
code: protected function getNextTag()
      {
          $tagLetter = substr( $this->currentTag, 0, 1 );
          $tagNumber = intval( substr( $this->currentTag, 1 ) );
          $tagNumber++;
          if ( $tagLetter == 'Z' && $tagNumber == 10000 )
          {
              $tagLetter = 'A';
              $tagNumber = 1;
          }
          if ( $tagNumber == 10000 )
          {
              $tagLetter++;
              $tagNumber = 0;
          }
          $this->currentTag = $tagLetter . sprintf( "%04s", $tagNumber );
          return $this->currentTag;
      }
code_tokens: protected function getNextTag ( ) { $ tagLetter = substr ( $ this -> currentTag , 0 , 1 ) ; $ tagNumber = intval ( substr ( $ this -> currentTag , 1 ) ) ; $ tagNumber ++ ; if ( $ tagLetter == 'Z' && $ tagNumber == 10000 ) { $ tagLetter = 'A' ; $ tagNumber = 1 ; } if ( $ tagNumber == 10000 ) { $ tagLetter ++ ; $ tagNumber = 0 ; } $ this -> currentTag = $ tagLetter . sprintf ( "%04s" , $ tagNumber ) ; return $ this -> currentTag ; }
docstring: Generates the next IMAP tag to prepend to client commands.
  
  The structure of the IMAP tag is Axxxx, where:
  - A is a letter (uppercase for conformity)
  - x is a digit from 0 to 9
  
  example of generated tag: T5439
  
  It uses the class variable $this->currentTag.
  
  Everytime it is called, the tag increases by 1.
  
  If it reaches the last tag, it wraps around to the first tag.
  
  By default, the first generated tag is A0001.
  
  @return string
docstring_tokens: Generates the next IMAP tag to prepend to client commands .