Whitespace is being included in Pair unexpectedly

[jonah-saltzman]

For the following .pest file:

WHITESPACE = _{ " " }
COLOR      = { "blue" | "red" | "green" }
NUM_CUBES  = { ASCII_DIGIT+ }
SET_ELE    = { NUM_CUBES ~ COLOR }

The input 2 green parsed against the SET_ELE rule produces:

Pair { rule: SET_ELE, span: Span { str: "2 green", start: 0, end: 7 }, inner: [Pair { rule: NUM_CUBES, span: Span { str: "2 ", start: 0, end: 2 }, inner: [Pair { rule: WHITESPACE, span: Span { str: " ", start: 1, end: 2 }, inner: [] }] }, Pair { rule: COLOR, span: Span { str: "green", start: 2, end: 7 }, inner: [] }] }

Notice that the NUM_CUBES Pair's span is "2 " rather than what I expected, "2". Any idea what the issue is?

[tomtau]

Maybe it hit this bug: #396 ?
The fix for it is feature-guarded with "grammar-extras" in order to keep the old behaviour under default (as it was unclear whether any crates depend on that old behaviour)
Did you specify your dependency as follows ?

pest_derive = { version = "2.7", features = ["grammar-extras"] }