Re: [Boost-users] [Spirit] Qi lexeme only taking the first word

On Tue, Nov 6, 2018 at 5:01 PM Michael Powell wrote:

Hello,

I've got a couple of rules that are perplexing to me. First,

rule id %= lexeme[qi::alpha >> *char_("A-Za-z0-9_")];

In and of itself, id is working fine. Then I've got a "full id":

rule full_id %= id >> *(char_('.') >> id);

Where:

struct full_id_t { std::string val; };

full_id_t::val is quite intentional for reasons elsewhere in the grammar.

The perplexity comes in, it seems lexeme is only shaving off the first word as the val.

For instance, parsing "two.oranges.red.test", I receive back "two" in the AST.

Perhaps I should defer specifying the lexeme part of id until later?

I elaborated a little on the "simple" full id sub-grammar, but I cannot repro using the GCC compiler. I'm wondering if this has anything to do with the VS2017 fpos issue? http://coliru.stacked-crooked.com/a/adeb42ce2f19b0fd Or there may be insufficient context in the web compiler to adequately demo.

Thoughts? Suggestions?

Thank you!

Best regards,

Michael Powell