Hello

in the version of the O'Reilly book on the web
http://caml.inria.fr/pub/docs/oreilly-book/html/book-ora105.html#toc134

Chapter 11 about Str Library page 293

the followin example of a regular expression is given :

*let*| |english_date_format| ||=|| |Str.regexp| ||"[0-9]+\.[0-9]+\.[0-9]+"|| |;;


1 - if you are aware of how to compile a Library and try to compile 
this line you will get a Warning :

Warning X: illegal backslash escape in string.

Is that a typing error ? Who is in charge of this kind of corrections ?



2 - if you are not aware of how to compile a Library it will be impossible 
to make this line of code be compiled and linked.

It will be nice to warn the reader about this trouble (for example with a special icon) 
and to give him the possibility to find (quickly) a description of the rather 
difficult compilation procedure to be used in this case

Thanks

François Colonna