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//
// imag - the personal information management suite for the commandline
// Copyright (C) 2015-2019 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 filters::filter::Filter;
use regex::Regex;
use regex::Error as RError;
use libimagstore::store::Entry;
pub trait IntoRegex {
fn into_regex(self) -> Result<Regex, RError>;
}
impl<'a> IntoRegex for &'a str {
fn into_regex(self) -> Result<Regex, RError> {
Regex::new(self)
}
}
impl<'a> IntoRegex for Regex {
fn into_regex(self) -> Result<Regex, RError> {
Ok(self)
}
}
pub struct ContentGrep {
regex: Regex,
}
impl ContentGrep {
pub fn new<IR>(regex: IR) -> Result<ContentGrep, RError>
where IR: IntoRegex
{
regex.into_regex()
.map(|reg| {
ContentGrep {
regex: reg,
}
})
}
}
impl Filter<Entry> for ContentGrep {
fn filter(&self, e: &Entry) -> bool {
self.regex.captures(&e.get_content()[..]).is_some()
}
}
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