Joel de Guzman <joel <at> boost-consulting.com> writes:
>
> Eric Niebler wrote:
> >
> >> - maybe the syntax highlighting could be done dynamically with
> >> informations from an external source. this would allow to define
> >> keywords and comment rules for other languages without having to write
> >> a new parser.
> >>
> >
> > Ya, that would be cool. I don't know how to do that with Spirit, though.
> > (It would be pretty straightforward if we were using xpressive, since
> > xpressive let's you parse strings into rules, but I don't think Spirit
> > lets you do that. Joel?)
>
> Oops, almost missed this...
>
> The syntax highlighter rules (e.g. comment, identifier... etc) can
> certainly use regex (boost/spirit/utility/regex.hpp), or xpressive.
> That way, we can have different syntax files for different languages
> which can be loaded at runtime, say from a specified directory in the
> quickbook path. The syntax files can be something as simple as:
>
> c++
> {
> preprocessor = ...some regex...;
> comment = ...some regex...;
> keyword = ...some regex...;
> special = ...some regex...;
> string = ...some regex...;
> char = ...some regex...;
> number = ...some regex...;
> identifier = ...some regex...;
> }
>
> boost::file_system is used to iterate over the contents of the
> quickbook_syntax directory. A simple spirit parser is the used
> to parse the contents and instantiate different syntax highlighters
> for each language (c++, python, etc).
>
> I welcome anyone who wish to hack on this. Thomas? :)
Sounds like this would be a fun way for me to get into Boost regex (or
xpressive) and file system so I'll investigate. This will certainly take me a
while since 1) learning curve and 2) it's a spare time activity for me, so
please don't expect anything soon!
Regards
Thomas
--
Thomas Guest
http://homepage.ntlworld.com/thomas.guest
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