Re: [xsl] Backtracking and eternal loops caused by regular expressions matching: what to expect from implementations?

[Abel Braaksma <abel.online@xxxxxxxxx>]

David Carlisle wrote:
> > I am under the impression that such behavior is not desirable, but I am 
> > unsure if there is anything in the specs that says something about how 
> > implementations should/must deal with this.
> >     
>
> [ERR XTDE1150] It is a non-recoverable dynamic error if the effective
> value of the regex attribute is a regular expression that matches a
> zero-length string: 

I know that, but this is about a zero-length matching subexpression. See 
the expression: "(.*)*". However, XSLT already gets into trouble (well, 
Saxon does) with: "(.+)*". This is not even zero-length-matching in the 
substring. Is this wrong behavior?

Note: the above expression *include* the quotes.

-- Abel