http://synthcode.com/scheme/irregex/
In addition to bugfixes and new utilities, this
release includes optimized DFA compilation -
an order of magnitude faster for typical uses.
The PCRE string syntax has been extended to
allow SRE escapes as \'<sre> and (*'<sre>).
The goal for the 0.9 release is optimizing DFA
execution and char-set representation. This
can't be done portably, so the initial step will
be to factor irregex.scm into multiple files with
a framework for conditional loading/compiling.
--
Alex