hello possums! i have the following rules declared in a spirit grammar definition (using boost 1.8.4 )..... //----------------------- typedef typename lexeme_scanner<ScannerT>::type lexeme_scanner_t; rule<lexeme_scanner_t> legal_initial_p ,legal_p ; //----------------------- and initialized in definition::definition() .... //----------------------- legal_initial_p = alpha_p | ch_p('_') |'<'|'>'|'='|'?'|'/'|'*'|'&'|'-'|'+'|'%' |'!'|'$'|':'|'@' ; legal_p = legal_initial_p | digit_p | ch_p('.') ; //----------------------- the above code compiles and functions as expected under MSVC 7.1 but causes g++ 4.1.1 to hang. if i use type rule<ScannerT> for legal_p and legal_initial_p, the code compiles on both, but doesn't work properly. i'm using |dynamic_distinct_parser ||so i can handle the '.' character as a syntactic token in certain contexts. |||//---------------------- |some declarations ... || struct keywords : symbols<Object> { ... } keywords_p; || ||dynamic_distinct_parser<ScannerT> keyword_p; ||||| //----------------------|some definitions ...| | ||chset<> distinct(chset<>(legal_ident) | chset<>("0-9")); distinct_directive<> keyword_d(distinct); distinct_parser<> keyword_p(distinct); |||| || ||rule<ScannerT, object_closure::context_t> ||Symbol_p = lexeme_d [ ( legal_initial_p >> *legal_p ) - keywords_p ] [ Symbol_p.value_ = intern_(arg1, arg2) ] ; || ||| dot_p = keyword_p("."); //---------------------- |// .... ||it's quite possible there's a better way to do the parsing, but it was fiddly, and i don't have any more time to mess with it. (the rest of the grammar is a recursive scheme reader, hence the closures) i would be very grateful for any suggestions as to what might be causing g++ to go walkabout! cheers, jono jp@day-one.com | | |