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IsIdentRune may be installed by a client of the scanner. If the installed function accepts EOF as a valid identifier rune, Scan calls may not terminate. Check for EOF when a user-defined IsIdentRune is used. Fixes #50909. Change-Id: Ib104b03ee59e2d58faa71f227c3b51ba424f7f61 Reviewed-on: https://go-review.googlesource.com/c/go/+/393254 Trust: Robert Griesemer <gri@golang.org> Run-TryBot: Robert Griesemer <gri@golang.org> TryBot-Result: Gopher Robot <gobot@golang.org> Reviewed-by: Ian Lance Taylor <iant@golang.org> |
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