diff options
Diffstat (limited to 'lib/entry/libimagentryfilter/src/builtin/content/grep.rs')
-rw-r--r-- | lib/entry/libimagentryfilter/src/builtin/content/grep.rs | 72 |
1 files changed, 72 insertions, 0 deletions
diff --git a/lib/entry/libimagentryfilter/src/builtin/content/grep.rs b/lib/entry/libimagentryfilter/src/builtin/content/grep.rs new file mode 100644 index 00000000..02039fba --- /dev/null +++ b/lib/entry/libimagentryfilter/src/builtin/content/grep.rs @@ -0,0 +1,72 @@ +// +// 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 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() + } + +} + |