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/*
* qtmaildir - a Qt6 mail client for notmuch-indexed Maildirs
* Copyright (C) 2026 Danilo M. <danix@danix.xyz>
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License version 2 as
* published by the Free Software Foundation.
*
* This program 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 General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
*/
#pragma once
#include <QList>
#include <QString>
/// One row in the builder: a field, an operator, and a value.
struct RuleTerm
{
enum Field { From, To, Cc, Subject, Tag, Folder, Attachment, Date };
enum Op {
Contains, ContainsNot, ///< Unquoted term, optionally negated.
Is, IsNot, ///< Quoted phrase, optionally negated.
Has, HasNot, ///< attachment: only.
Before, After ///< date: only. "not before" is "after", so
///< these carry no negated twin.
};
Field field = From;
Op op = Contains;
QString value;
};
bool operator==(const RuleTerm &a, const RuleTerm &b);
/// A tagging rule's query, as rows.
///
/// The STRING is the stored format, shared with mailctl and executed by the
/// notmuch post-new hook. This type is a view over it, never the store: a
/// query it cannot represent must still open, save and run unchanged.
struct RuleQuery
{
enum Join { All, Any }; ///< and / or, over the positive terms only.
Join join = All;
QList<RuleTerm> terms; ///< Positive section.
QList<RuleTerm> exclusions; ///< The "but not" block, joined `and not`.
/// False when the query cannot be shown as rows. NOT an error and NOT a
/// claim that the query is invalid: the rule opens in text mode.
bool parsed = false;
static RuleQuery parse(const QString &query);
QString compile() const;
};
bool operator==(const RuleQuery &a, const RuleQuery &b);
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