523 \frametitle{POSIX: Two Rules}

   523 \frametitle{POSIX: Two Rules}

   524 

   524 

   525 \begin{itemize}

   525 \begin{itemize}

   526 \item Longest match rule (``maximal munch rule''): The 

   526 \item Longest match rule (``maximal munch rule''): The 

   527 longest initial substring matched by any regular expression is taken

   527 longest initial substring matched by any regular expression is taken

   529 

   529 

   530 \item Rule priority:

   530 \item Rule priority:

   531 For a particular longest initial substring, the first regular

   531 For a particular longest initial substring, the first regular

   532 expression that can match determines the token.

   532 expression that can match determines the token.

   533 \end{itemize}\bigskip\bigskip\pause

   533 \end{itemize}\bigskip\bigskip\pause