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gnu: Add rust-peeking-take-while.

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* gnu/packages/crates-io.scm (rust-peeking-take-while): New variable.
This commit is contained in:
Efraim Flashner 2019-08-04 13:53:57 +03:00
parent 0c6759d87e
commit f22f05d901
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1 changed files with 23 additions and 0 deletions
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23
gnu/packages/crates-io.scm
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@ -371,6 +371,29 @@ (define-public rust-md5
(license (list license:asl2.0
license:expat))))
(define-public rust-peeking-take-while
(package
(name "rust-peeking-take-while")
(version "0.1.2")
(source
(origin
(method url-fetch)
(uri (crate-uri "peeking_take_while" version))
(file-name (string-append name "-" version ".tar.gz"))
(sha256
(base32
"16bhqr6rdyrp12zv381cxaaqqd0pwysvm1q8h2ygihvypvfprc8r"))))
(build-system cargo-build-system)
(home-page "https://github.com/fitzgen/peeking_take_while")
(synopsis "Provides the peeking_take_while iterator adaptor method")
(description
"Like @code{Iterator::take_while}, but calls the predicate on a peeked
value. This allows you to use @code{Iterator::by_ref} and
@code{Iterator::take_while} together, and still get the first value for which
the @code{take_while} predicate returned false after dropping the @code{by_ref}.")
(license (list license:asl2.0
license:expat))))
(define-public rust-proc-macro2
(package
(name "rust-proc-macro2")