Hi,

Thank you for an insightful SRFI.
There seems a couple of small typos in the draft;
* In SRE Syntax section: The clause "| bos ; Beginning/end of string."
  should be "| bos ; Beginning of string."
* In References section: The URL of Gauche's manual page about its regular
  expressions is
  http://practical-scheme.net/gauche/man/gauche-refe_51.html.

Cheers,
-- Takeshi Abe