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/*
* Copyright (C) 2015 Frederic Wang (fred.wang@free.fr). All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
* OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
#pragma once
#if ENABLE(MATHML)
#include <optional>
#include <unicode/utypes.h>
#include <wtf/Forward.h>
namespace WebCore {
namespace MathMLOperatorDictionary {
enum Form { Infix, Prefix, Postfix };
enum Flag {
Accent = 0x1,
Fence = 0x2, // This has no visual effect but allows to expose semantic information via the accessibility tree.
LargeOp = 0x4,
MovableLimits = 0x8,
Separator = 0x10, // This has no visual effect but allows to expose semantic information via the accessibility tree.
Stretchy = 0x20,
Symmetric = 0x40
};
const unsigned allFlags = Accent | Fence | LargeOp | MovableLimits | Separator | Stretchy | Symmetric;
struct Property {
MathMLOperatorDictionary::Form form;
// Default leading and trailing spaces are "thickmathspace".
unsigned short leadingSpaceInMathUnit { 5 };
unsigned short trailingSpaceInMathUnit { 5 };
// Default operator properties are all set to "false".
unsigned short flags { 0 };
};
std::optional<Property> search(UChar32, Form, bool explicitForm);
bool isVertical(UChar32);
}
}
#endif // ENABLE(MATHML)
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