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/* ScummVM - Scumm Interpreter
* Copyright (C) 2002-2005 The ScummVM project
*
* 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 2
* 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, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
*
* $Header$
*/
#ifndef COMMON_STRING_H
#define COMMON_STRING_H
#include "common/scummsys.h"
#include "common/array.h"
#include <assert.h>
#include <string.h>
namespace Common {
class String {
protected:
char *_str;
int _len;
int *_refCount;
int _capacity;
public:
#if !(defined(PALMOS_ARM) || defined(PALMOS_DEBUG))
static const String emptyString;
#else
static const char *emptyString;
#endif
String() : _str(0), _len(0), _capacity(0) { _refCount = new int(1); }
String(const char *str, int len = -1);
String(const String &str);
virtual ~String();
String &operator =(const char *str);
String &operator =(const String &str);
String &operator =(char c);
String &operator +=(const char *str);
String &operator +=(const String &str);
String &operator +=(char c);
bool operator ==(const String &x) const;
bool operator ==(const char *x) const;
bool operator !=(const String &x) const;
bool operator !=(const char *x) const;
bool operator <(const String &x) const;
bool operator <=(const String &x) const;
bool operator >(const String &x) const;
bool operator >=(const String &x) const;
bool hasSuffix(const char *x) const;
bool hasPrefix(const char *x) const;
const char *c_str() const { return _str ? _str : ""; }
uint size() const { return _len; }
bool isEmpty() const { return (_len == 0); }
char lastChar() const { return (_len > 0) ? _str[_len-1] : 0; }
char operator [](int idx) const {
assert(_str && idx >= 0 && idx < _len);
return _str[idx];
}
char &operator [](int idx) {
assert(_str && idx >= 0 && idx < _len);
return _str[idx];
}
void deleteLastChar();
void deleteChar(int p);
void clear();
void insertChar(char c, int p);
void toLowercase();
void toUppercase();
public:
typedef char * iterator;
typedef const char * const_iterator;
iterator begin() {
return _str;
}
iterator end() {
return begin() + size();
}
const_iterator begin() const {
return _str;
}
const_iterator end() const {
return begin() + size();
}
protected:
void ensureCapacity(int new_len, bool keep_old);
void decRefCount();
};
// Append two strings to form a new (temp) string
String operator +(const String &x, const String &y);
String operator +(const char *x, const String &y);
String operator +(const String &x, const char *y);
// Some useful additional comparision operators for Strings
bool operator == (const char *x, const String &y);
bool operator != (const char *x, const String &y);
class StringList : public Array<String> {
public:
void push_back(const char *str) {
ensureCapacity(_size + 1);
_data[_size++] = str;
}
void push_back(const String &str) {
ensureCapacity(_size + 1);
_data[_size++] = str;
}
};
} // End of namespace Common
#endif
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