5  References

[1]   Jeffrey E. F. Friedl. Mastering Regular Expressions. O’Reilly, 2d edition, 2002.

[2]   Michael Sperber, R. Kent Dybvig, Matthew Flatt, and Anton von Straatan (eds). Revised6 Report on the Algorithmic Language Scheme (‘‘R6RS’’), 2007. Formal Semantics: Robert Bruce Findler and Jacob Matthews.

[3]   Larry Wall, Tom Christiansen, and Jon Orwant. Programming Perl. O’Reilly, 3rd edition, 2000.