ome restrictions. The differences between the two
functions are described in the
<a href="pcrematching.html"><b>pcrematching</b></a>
documentation.
</P>
<P>
If a data line contains the \D escape sequence, or if the command line
contains the <b>-dfa</b> option, the alternative matching function is called.
This function finds all possible matches at a given point. If, however, the \F
escape sequence is present in the data line, it stops after the first match is
found. This is always the shortest possible matc