2012/1/23 Olaf Meeuwissen
Hi all,
While I had no trouble getting the parsing part for this to work, I'm stuck on the generator part. Specifically, I'm stuck on getting the size into the output.
The goal is a rule that takes a std::vector<byte> and outputs it in such a way that it is preceded by its size (in a custom encoding) and padded by zeroes to align on a four byte boundary.
I want to reuse this rule in several other rules and prefer to break it up into smaller pieces. A minimalistic example of what I have come up with so far is attached. What I can't seem figure out how to get at and store the vector's size in pascal_string_size_. There also seem to be problems with refering to the stored size_ in pascal_string_payload_ and pascal_string_padding_ that I don't understand.
o Use phoenix::size to extrac the size o Use karma::embed(*) to feed in the size o Use local variable to store the size o Use inherited attribute to pass the size Full code attached. =footnotes= (*) A component made by me, you can find it here: https://github.com/jamboree/boost-jamboree-spirit. As an alternative, you can search "no_attr" on Spirit ML.