\NeedsTeXFormat{LaTeX2e}
\ProvidesPackage{fancyvrb1}[2007/03/17 Improved fancyvrb by ccshan]
\RequirePackage{fancyvrb}

\DeclareOption{compact}{%
  \let\saveFV@ListProcessLine@i   \FV@ListProcessLine@i
  \let\saveFV@ListProcessLine@ii  \FV@ListProcessLine@ii
  \let\saveFV@ListProcessLine@iii \FV@ListProcessLine@iii
  \let\saveFV@ListProcessLine@iv  \FV@ListProcessLine@iv
  \let\saveFV@BProcessLine        \FV@BProcessLine
  \def\FV@ListProcessLine@i   {\let\saveFV@Compact\saveFV@ListProcessLine@i
                               \afterassignment\FV@Compact\toks@}%
  \def\FV@ListProcessLine@ii  {\let\saveFV@Compact\saveFV@ListProcessLine@ii
                               \afterassignment\FV@ListCompact\toks@}%
  \def\FV@ListProcessLine@iii {\let\saveFV@Compact\saveFV@ListProcessLine@iii
                               \afterassignment\FV@ListCompact\toks@}%
  \def\FV@ListProcessLine@iv  {\let\saveFV@Compact\saveFV@ListProcessLine@iv
                               \afterassignment\FV@ListCompact\toks@}%
  \def\FV@BProcessLine        {\let\saveFV@Compact\saveFV@BProcessLine
                               \afterassignment\FV@Compact\toks@}%
}
\ProcessOptions

\def\FV@compactskip{\penalty-200 \medskip}
\def\FV@Compact{\edef\next{\the\toks@}%
    \ifx\next\empty
        \FV@compactskip
    \else
        \expandafter\saveFV@Compact\expandafter{\the\toks@}%
    \fi}%
\def\FV@ListCompact{\edef\next{\the\toks@}%
    \ifx\next\empty
        \FV@ListProcessLastLine
        \FV@compactskip
        \let\FV@ProcessLine\FV@ListProcessLine@i
    \else
        \expandafter\saveFV@Compact\expandafter{\the\toks@}%
    \fi}%