42 lines
1.4 KiB
Rust
42 lines
1.4 KiB
Rust
//
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// imag - the personal information management suite for the commandline
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// Copyright (C) 2015, 2016 Matthias Beyer <mail@beyermatthias.de> and contributors
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//
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// This library is free software; you can redistribute it and/or
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// modify it under the terms of the GNU Lesser General Public
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// License as published by the Free Software Foundation; version
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// 2.1 of the License.
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//
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// This library is distributed in the hope that it will be useful,
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// but WITHOUT ANY WARRANTY; without even the implied warranty of
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// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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// Lesser General Public License for more details.
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//
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// You should have received a copy of the GNU Lesser General Public
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// License along with this library; if not, write to the Free Software
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// Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
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//
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#[macro_export]
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macro_rules! is_match {
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($expression: expr, $($pattern:tt)+) => {
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is_match! {tt
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match $expression {
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$($pattern)+ => true,
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_ => false
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}
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}
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};
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(tt $value:expr) => ($value);
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}
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#[test]
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fn test_matching() {
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let foo = Some("-12");
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assert!(is_match!(foo, Some(bar) if
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is_match!(bar.as_bytes()[0], b'+' | b'-') &&
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is_match!(bar.as_bytes()[1], b'0'...b'9')
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));
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assert!(!is_match!(foo, None));
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}
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