diff options
Diffstat (limited to 'lib/entry/libimagentryfilter/src/builtin/header/field_eq.rs')
-rw-r--r-- | lib/entry/libimagentryfilter/src/builtin/header/field_eq.rs | 63 |
1 files changed, 63 insertions, 0 deletions
diff --git a/lib/entry/libimagentryfilter/src/builtin/header/field_eq.rs b/lib/entry/libimagentryfilter/src/builtin/header/field_eq.rs new file mode 100644 index 00000000..f10f3d0f --- /dev/null +++ b/lib/entry/libimagentryfilter/src/builtin/header/field_eq.rs @@ -0,0 +1,63 @@ +// +// imag - the personal information management suite for the commandline +// Copyright (C) 2015, 2016 Matthias Beyer <mail@beyermatthias.de> and contributors +// +// This library is free software; you can redistribute it and/or +// modify it under the terms of the GNU Lesser General Public +// License as published by the Free Software Foundation; version +// 2.1 of the License. +// +// This library is distributed in the hope that it will be useful, +// but WITHOUT ANY WARRANTY; without even the implied warranty of +// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU +// Lesser General Public License for more details. +// +// You should have received a copy of the GNU Lesser General Public +// License along with this library; if not, write to the Free Software +// Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA +// + +use libimagstore::store::Entry; + +use builtin::header::field_path::FieldPath; +use builtin::header::field_predicate::FieldPredicate; +use builtin::header::field_predicate::Predicate; +use filters::filter::Filter; + +use toml::Value; + +struct EqPred { + expected: Value +} + +impl Predicate for EqPred { + + fn evaluate(&self, v: Value) -> bool { + self.expected == v + } + +} + +/// Check whether certain header field in a entry is equal to a value +pub struct FieldEq { + filter: FieldPredicate<EqPred>, +} + +impl FieldEq { + + pub fn new(path: FieldPath, expected_value: Value) -> FieldEq { + FieldEq { + filter: FieldPredicate::new(path, Box::new(EqPred { expected: expected_value })), + } + } + +} + +impl Filter<Entry> for FieldEq { + + fn filter(&self, e: &Entry) -> bool { + self.filter.filter(e) + } + +} + |