Highlighting of Perl Syntactical Structures

 Syntax::Highlight::Perl provides syntax highlighting for Perl code. The
 design bias is roughly line-oriented and streamed (ie, processing a file
 line-by-line in a single pass). Provisions may be made in the future for
 tasks related to "back-tracking" (ie, re-doing a single line in the middle of
 a stream) such as speeding up state copying.