On Fri, 5 Jul 2024 at 10:39, Rafael Luque <rafael.luque.le...@gmail.com> wrote:
> Hi all, > > I'm struggling with a small parser using PetitParser2. Here is a fragment > of some of the rules I'm defining but their behaviour is not as I could > expect: > > andKeyword := 'and' asPParser trim, #letter asPParser not. > notKeyword := 'not' asPParser trim, #letter asPParser not. > keyword := andKeyword / notKeyword. > nonKeywordIdentifier := keyword not, #letter asPParser, #word asPParser > star. > word := nonKeywordIdentifier, #blank asPParser star. > words := word star. > > The behaviour of the "nonKeywordIdentifier" is the expected: > > identifier end parse: 'hello'. "It parses successfully" > identifier end parse: 'and'. "It fails as 'and' is a keyword" > > However the "words" rule's behavior is the following: > > words end parse: 'hello Pharo'. "It parses successfully" > words end parse: 'hello and bye'. "It parses, when I would expect it fails > because of 'and' is a keyword" > > I don't understand why the "words" rule works this way, but I'm starting > with PetitParser. Any suggestions? > > Thank you. > You might consider asking on stackoverflow. A PetitParser2 question has been answered there recently. -- Frank Church =======================
