Re: Qi parse retval vs iterators
Seth <[email protected]>
| Newsgroups | gmane.comp.parsers.spirit.general |
|---|---|
| Message-ID | <[email protected]> |
On 04-12-17 23:09, Michael Powell wrote: > I should think that if there were any remaining input that would be a > failure to match? You shouldn't. PEG grammars are left-to-right greedy. This is documented. I've said this before: On 30-11-17 00:40, Seth wrote: > Bonus tip: consider adding `>> qi::eoi` at the end of the parse > expression so you don't need to check whether all of the input has been > consumed (it must). And also this warning about partially matching: On 27-11-17 13:51, Seth wrote: > > A more complete example: > > https://stackoverflow.com/questions/47243884/boost-spirit-qi-validating-input-parser/47244585#47244585 > > Which makes the point that you might want to `lexeme [ > uint_parser<uint16_t, 10, 2, 5>() >> !(digit|'.') ]` to avoid > partially matching longer numbers. > ------------------------------------------------------------------------------ Check out the vibrant tech community on one of the world's most engaging tech sites, Slashdot.org! http://sdm.link/slashdot