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/* ScummVM - Graphic Adventure Engine
*
* ScummVM is the legal property of its developers, whose names
* are too numerous to list here. Please refer to the COPYRIGHT
* file distributed with this source distribution.
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* 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, see <http://www.gnu.org/licenses/>.
*
*/
#ifndef COMMON_DBCS_STR_H
#define COMMON_DBCS_STR_H
#include "common/scummsys.h"
#include "common/util.h"
#include "common/str-enc.h"
#include "common/str-base.h"
namespace Common {
class String;
/**
* A simple string class for DBCS strings in ScummVM.
*
* The presence of \0 characters in the string will cause undefined
* behavior in some operations.
*/
class DBCSString : public BaseString<uint16> {
public:
typedef uint32 unsigned_type; /*!< Unsigned version of the underlying type. */
public:
/** Construct a new empty string. */
constexpr DBCSString() : BaseString<uint16>() {}
/** Construct a new string from the given null-terminated C string. */
explicit DBCSString(const value_type *str) : BaseString<uint16>(str) {}
/** Construct a new string containing exactly @p len characters read from address @p str. */
DBCSString(const value_type *str, uint32 len) : BaseString<uint16>(str, len) {}
explicit DBCSString(const uint32 *str) : BaseString<uint16>((const value_type *) str) {}
DBCSString(const uint32 *str, uint32 len) : BaseString<uint16>((const value_type *) str, len) {}
DBCSString(const uint32 *beginP, const uint32 *endP) : BaseString<uint16>((const value_type *) beginP, (const value_type *) endP) {}
/** Construct a new string containing the characters between @p beginP (including) and @p endP (excluding). */
DBCSString(const value_type *beginP, const value_type *endP) : BaseString<uint16>(beginP, endP) {}
/** Construct a copy of the given string. */
DBCSString(const DBCSString &str) : BaseString<uint16>(str) {}
/** Construct a string by moving an existing string. */
DBCSString(DBCSString &&str) : BaseString<uint16>(static_cast<BaseString<uint16> &&>(str)) {}
/** Construct a new string from the given null-terminated C string that uses the given @p page encoding. */
explicit DBCSString(const char *str);
/** Construct a new string containing exactly @p len characters read from address @p str. */
DBCSString(const char *str, uint32 len);
/** Construct a new string containing the characters between @p beginP (including) and @p endP (excluding). */
DBCSString(const char *beginP, const char *endP);
/** Construct a copy of the given string. */
explicit DBCSString(const String &str);
/** Construct a string consisting of the given character. */
explicit DBCSString(value_type c);
/** Assign a given string to this string. */
DBCSString &operator=(const DBCSString &str);
/** Move a given string to this string. */
DBCSString &operator=(DBCSString &&str);
/** @overload */
DBCSString &operator=(const String &str);
/** @overload */
DBCSString &operator=(const value_type *str);
/** @overload */
DBCSString &operator=(const char *str);
/** @overload */
DBCSString &operator=(value_type c);
/** Append the given string to this string. */
DBCSString &operator+=(const DBCSString &str);
/** @overload */
DBCSString &operator+=(const value_type *str);
/** @overload */
DBCSString &operator+=(value_type c);
using BaseString<value_type>::operator==;
using BaseString<value_type>::operator!=;
/** Check whether this string is identical to string @p x. */
bool operator==(const String &x) const;
/** @overload */
bool operator==(const char *x) const;
/** Check whether this string is different than string @p x. */
bool operator!=(const String &x) const;
/** @overload */
bool operator!=(const char *x) const;
/** Convert the string to the standard String represantation. */
String convertToString() const;
/** Return a substring of this string */
DBCSString substr(size_t pos = 0, size_t len = npos) const;
private:
void decodeDBCS(const char *str, uint32 len);
friend class String;
};
/** Concatenate strings @p x and @p y. */
DBCSString operator+(const DBCSString &x, const DBCSString &y);
/** Append the given @p y character to the given @p x string. */
DBCSString operator+(const DBCSString &x, DBCSString::value_type y);
/** @} */
} // End of namespace Common
#endif
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