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* Copyright (c) 2016 elementary LLC. (http://launchpad.net/pantheon-files)
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public
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* License as published by the Free Software Foundation; either
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* version 2 of the License, or (at your option) any later version.
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* This program 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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* General Public License for more details.
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* You should have received a copy of the GNU General Public
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* License along with this program; if not, write to the
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* Free Software Foundation, Inc., 59 Temple Place - Suite 330,
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* Boston, MA 02111-1307, USA.
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namespace Permissions {
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public static bool is_chmod_code (string str) {
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var regex = new Regex ("^[0-7]{3}$");
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if (regex.match (str)) {
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} catch (RegexError e) {
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assert_not_reached ();