question: String formatNumberList ( TransformerImpl transformer , long [ ] list , int contextNode ) throws TransformerException { String numStr ; FastStringBuffer formattedNumber = StringBufferPool . get ( ) ; try { int nNumbers = list . length , numberWidth = 1 ; char numberType = '1' ; String formatToken , lastSepString = null , formatTokenString = null ; String lastSep = "." ; boolean isFirstToken = true ; String formatValue = ( null != m_format_avt ) ? m_format_avt . evaluate ( transformer . getXPathContext ( ) , contextNode , this ) : null ; if ( null == formatValue ) formatValue = "1" ; NumberFormatStringTokenizer formatTokenizer = new NumberFormatStringTokenizer ( formatValue ) ; for ( int i = 0 ; i < nNumbers ; i ++ ) { if ( formatTokenizer . hasMoreTokens ( ) ) { formatToken = formatTokenizer . nextToken ( ) ; if ( Character . isLetterOrDigit ( formatToken . charAt ( formatToken . length ( ) - 1 ) ) ) { numberWidth = formatToken . length ( ) ; numberType = formatToken . charAt ( numberWidth - 1 ) ; } else if ( formatTokenizer . isLetterOrDigitAhead ( ) ) { formatTokenString = formatToken ; while ( formatTokenizer . nextIsSep ( ) ) { formatToken = formatTokenizer . nextToken ( ) ; formatTokenString += formatToken ; } if ( ! isFirstToken ) lastSep = formatTokenString ; formatToken = formatTokenizer . nextToken ( ) ; numberWidth = formatToken . length ( ) ; numberType = formatToken . charAt ( numberWidth - 1 ) ; } else { lastSepString = formatToken ; while ( formatTokenizer . hasMoreTokens ( ) ) { formatToken = formatTokenizer . nextToken ( ) ; lastSepString += formatToken ; } } } if ( null != formatTokenString && isFirstToken ) { formattedNumber . append ( formatTokenString ) ; } else if ( null != lastSep && ! isFirstToken ) formattedNumber . append ( lastSep ) ; getFormattedNumber ( transformer , contextNode , numberType , numberWidth , list [ i ] , formattedNumber ) ; isFirstToken = false ; } while ( formatTokenizer . isLetterOrDigitAhead ( ) ) { formatTokenizer . nextToken ( ) ; } if ( lastSepString != null ) formattedNumber . append ( lastSepString ) ; while ( formatTokenizer . hasMoreTokens ( ) ) { formatToken = formatTokenizer . nextToken ( ) ; formattedNumber . append ( formatToken ) ; } numStr = formattedNumber . toString ( ) ; } finally { StringBufferPool . free ( formattedNumber ) ; } return numStr ; }
target:  Format a vector of numbers into a formatted string.