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/*
*******************************************************************************
*
* Copyright (c) 1995-2013 International Business Machines Corporation and others
*
* All rights reserved.
*
* Permission is hereby granted, free of charge, to any person obtaining a copy of
* this software and associated documentation files (the "Software"), to deal in
* the Software without restriction, including without limitation the rights to
* use, copy, modify, merge, publish, distribute, and/or sell copies of the
* Software, and to permit persons to whom the Software is furnished to do so,
* provided that the above copyright notice(s) and this permission notice appear
* in all copies of the Software and that both the above copyright notice(s) and
* this permission notice appear in supporting documentation.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT OF THIRD PARTY RIGHTS. IN
* NO EVENT SHALL THE COPYRIGHT HOLDER OR HOLDERS INCLUDED IN THIS NOTICE BE
* LIABLE FOR ANY CLAIM, OR ANY SPECIAL INDIRECT OR CONSEQUENTIAL DAMAGES, OR ANY
* DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
* ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN
* CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
*
* Except as contained in this notice, the name of a copyright holder shall not be
* used in advertising or otherwise to promote the sale, use or other dealings in
* this Software without prior written authorization of the copyright holder.
*
*******************************************************************************
* file name: scrptrun.h
*
* created on: 10/17/2001
* created by: Eric R. Mader
*/
#ifndef INCLUDED_VCL_INC_SCRPTRUN_H
#define INCLUDED_VCL_INC_SCRPTRUN_H
#include <sal/config.h>
#include <unicode/uobject.h>
#include <unicode/uscript.h>
#include <vector>
namespace vcl {
struct ParenStackEntry
{
int32_t pairIndex;
UScriptCode scriptCode;
ParenStackEntry()
: pairIndex(0)
, scriptCode(USCRIPT_INVALID_CODE)
{
}
};
class ScriptRun final : public icu::UObject {
public:
ScriptRun(const UChar chars[], int32_t length);
void reset();
void reset(int32_t start, int32_t count);
void reset(const UChar chars[], int32_t start, int32_t length);
int32_t getScriptStart() const;
int32_t getScriptEnd() const;
UScriptCode getScriptCode() const;
UBool next();
/**
s * ICU "poor man's RTTI", returns a UClassID for the actual class.
*
* @stable ICU 2.2
*/
virtual UClassID getDynamicClassID() const override { return getStaticClassID(); }
/**
* ICU "poor man's RTTI", returns a UClassID for this class.
*
* @stable ICU 2.2
*/
static UClassID getStaticClassID() { return static_cast<UClassID>(const_cast<char *>(&fgClassID)); }
private:
int32_t charStart;
int32_t charLimit;
const UChar *charArray;
int32_t scriptStart;
int32_t scriptEnd;
UScriptCode scriptCode;
std::vector<ParenStackEntry> parenStack;
int32_t parenSP;
/**
* The address of this static class variable serves as this class's ID
* for ICU "poor man's RTTI".
*/
static const char fgClassID;
};
inline ScriptRun::ScriptRun(const UChar chars[], int32_t length)
{
reset(chars, 0, length);
}
inline int32_t ScriptRun::getScriptStart() const
{
return scriptStart;
}
inline int32_t ScriptRun::getScriptEnd() const
{
return scriptEnd;
}
inline UScriptCode ScriptRun::getScriptCode() const
{
return scriptCode;
}
inline void ScriptRun::reset()
{
scriptStart = charStart;
scriptEnd = charStart;
scriptCode = USCRIPT_INVALID_CODE;
parenSP = -1;
parenStack.resize(128);
}
inline void ScriptRun::reset(int32_t start, int32_t length)
{
charStart = start;
charLimit = start + length;
reset();
}
inline void ScriptRun::reset(const UChar chars[], int32_t start, int32_t length)
{
charArray = chars;
reset(start, length);
}
}
#endif
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